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9847 lines
391 KiB
JavaScript
9847 lines
391 KiB
JavaScript
// CodeMirror, copyright (c) by Marijn Haverbeke and others
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// Distributed under an MIT license: https://codemirror.net/LICENSE
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// This is CodeMirror (https://codemirror.net), a code editor
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// implemented in JavaScript on top of the browser's DOM.
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//
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// You can find some technical background for some of the code below
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// at http://marijnhaverbeke.nl/blog/#cm-internals .
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(function (global, factory) {
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typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
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typeof define === 'function' && define.amd ? define(factory) :
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(global = global || self, global.CodeMirror = factory());
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}(this, (function () { 'use strict';
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// Kludges for bugs and behavior differences that can't be feature
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// detected are enabled based on userAgent etc sniffing.
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var userAgent = navigator.userAgent;
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var platform = navigator.platform;
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var gecko = /gecko\/\d/i.test(userAgent);
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var ie_upto10 = /MSIE \d/.test(userAgent);
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var ie_11up = /Trident\/(?:[7-9]|\d{2,})\..*rv:(\d+)/.exec(userAgent);
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var edge = /Edge\/(\d+)/.exec(userAgent);
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var ie = ie_upto10 || ie_11up || edge;
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var ie_version = ie && (ie_upto10 ? document.documentMode || 6 : +(edge || ie_11up)[1]);
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var webkit = !edge && /WebKit\//.test(userAgent);
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var qtwebkit = webkit && /Qt\/\d+\.\d+/.test(userAgent);
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var chrome = !edge && /Chrome\//.test(userAgent);
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var presto = /Opera\//.test(userAgent);
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var safari = /Apple Computer/.test(navigator.vendor);
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var mac_geMountainLion = /Mac OS X 1\d\D([8-9]|\d\d)\D/.test(userAgent);
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var phantom = /PhantomJS/.test(userAgent);
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var ios = safari && (/Mobile\/\w+/.test(userAgent) || navigator.maxTouchPoints > 2);
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var android = /Android/.test(userAgent);
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// This is woefully incomplete. Suggestions for alternative methods welcome.
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var mobile = ios || android || /webOS|BlackBerry|Opera Mini|Opera Mobi|IEMobile/i.test(userAgent);
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var mac = ios || /Mac/.test(platform);
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var chromeOS = /\bCrOS\b/.test(userAgent);
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var windows = /win/i.test(platform);
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var presto_version = presto && userAgent.match(/Version\/(\d*\.\d*)/);
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if (presto_version) { presto_version = Number(presto_version[1]); }
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if (presto_version && presto_version >= 15) { presto = false; webkit = true; }
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// Some browsers use the wrong event properties to signal cmd/ctrl on OS X
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var flipCtrlCmd = mac && (qtwebkit || presto && (presto_version == null || presto_version < 12.11));
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var captureRightClick = gecko || (ie && ie_version >= 9);
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function classTest(cls) { return new RegExp("(^|\\s)" + cls + "(?:$|\\s)\\s*") }
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var rmClass = function(node, cls) {
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var current = node.className;
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var match = classTest(cls).exec(current);
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if (match) {
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var after = current.slice(match.index + match[0].length);
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node.className = current.slice(0, match.index) + (after ? match[1] + after : "");
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}
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};
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function removeChildren(e) {
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for (var count = e.childNodes.length; count > 0; --count)
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{ e.removeChild(e.firstChild); }
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return e
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}
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function removeChildrenAndAdd(parent, e) {
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return removeChildren(parent).appendChild(e)
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}
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function elt(tag, content, className, style) {
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var e = document.createElement(tag);
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if (className) { e.className = className; }
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if (style) { e.style.cssText = style; }
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if (typeof content == "string") { e.appendChild(document.createTextNode(content)); }
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else if (content) { for (var i = 0; i < content.length; ++i) { e.appendChild(content[i]); } }
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return e
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}
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// wrapper for elt, which removes the elt from the accessibility tree
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function eltP(tag, content, className, style) {
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var e = elt(tag, content, className, style);
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e.setAttribute("role", "presentation");
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return e
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}
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var range;
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if (document.createRange) { range = function(node, start, end, endNode) {
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var r = document.createRange();
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r.setEnd(endNode || node, end);
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r.setStart(node, start);
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return r
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}; }
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else { range = function(node, start, end) {
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var r = document.body.createTextRange();
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try { r.moveToElementText(node.parentNode); }
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catch(e) { return r }
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r.collapse(true);
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r.moveEnd("character", end);
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r.moveStart("character", start);
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return r
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}; }
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function contains(parent, child) {
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if (child.nodeType == 3) // Android browser always returns false when child is a textnode
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{ child = child.parentNode; }
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if (parent.contains)
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{ return parent.contains(child) }
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do {
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if (child.nodeType == 11) { child = child.host; }
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if (child == parent) { return true }
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} while (child = child.parentNode)
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}
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function activeElt() {
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// IE and Edge may throw an "Unspecified Error" when accessing document.activeElement.
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// IE < 10 will throw when accessed while the page is loading or in an iframe.
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// IE > 9 and Edge will throw when accessed in an iframe if document.body is unavailable.
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var activeElement;
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try {
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activeElement = document.activeElement;
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} catch(e) {
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activeElement = document.body || null;
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}
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while (activeElement && activeElement.shadowRoot && activeElement.shadowRoot.activeElement)
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{ activeElement = activeElement.shadowRoot.activeElement; }
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return activeElement
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}
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function addClass(node, cls) {
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var current = node.className;
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if (!classTest(cls).test(current)) { node.className += (current ? " " : "") + cls; }
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}
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function joinClasses(a, b) {
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var as = a.split(" ");
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for (var i = 0; i < as.length; i++)
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{ if (as[i] && !classTest(as[i]).test(b)) { b += " " + as[i]; } }
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return b
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}
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var selectInput = function(node) { node.select(); };
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if (ios) // Mobile Safari apparently has a bug where select() is broken.
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{ selectInput = function(node) { node.selectionStart = 0; node.selectionEnd = node.value.length; }; }
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else if (ie) // Suppress mysterious IE10 errors
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{ selectInput = function(node) { try { node.select(); } catch(_e) {} }; }
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function bind(f) {
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var args = Array.prototype.slice.call(arguments, 1);
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return function(){return f.apply(null, args)}
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}
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function copyObj(obj, target, overwrite) {
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if (!target) { target = {}; }
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for (var prop in obj)
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{ if (obj.hasOwnProperty(prop) && (overwrite !== false || !target.hasOwnProperty(prop)))
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{ target[prop] = obj[prop]; } }
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return target
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}
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// Counts the column offset in a string, taking tabs into account.
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// Used mostly to find indentation.
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function countColumn(string, end, tabSize, startIndex, startValue) {
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if (end == null) {
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end = string.search(/[^\s\u00a0]/);
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if (end == -1) { end = string.length; }
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}
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for (var i = startIndex || 0, n = startValue || 0;;) {
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var nextTab = string.indexOf("\t", i);
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if (nextTab < 0 || nextTab >= end)
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{ return n + (end - i) }
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n += nextTab - i;
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n += tabSize - (n % tabSize);
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i = nextTab + 1;
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}
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}
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var Delayed = function() {
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this.id = null;
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this.f = null;
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this.time = 0;
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this.handler = bind(this.onTimeout, this);
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};
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Delayed.prototype.onTimeout = function (self) {
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self.id = 0;
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if (self.time <= +new Date) {
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self.f();
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} else {
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setTimeout(self.handler, self.time - +new Date);
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}
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};
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Delayed.prototype.set = function (ms, f) {
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this.f = f;
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var time = +new Date + ms;
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if (!this.id || time < this.time) {
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clearTimeout(this.id);
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this.id = setTimeout(this.handler, ms);
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this.time = time;
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}
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};
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function indexOf(array, elt) {
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for (var i = 0; i < array.length; ++i)
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{ if (array[i] == elt) { return i } }
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return -1
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}
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// Number of pixels added to scroller and sizer to hide scrollbar
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var scrollerGap = 50;
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// Returned or thrown by various protocols to signal 'I'm not
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// handling this'.
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var Pass = {toString: function(){return "CodeMirror.Pass"}};
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// Reused option objects for setSelection & friends
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var sel_dontScroll = {scroll: false}, sel_mouse = {origin: "*mouse"}, sel_move = {origin: "+move"};
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// The inverse of countColumn -- find the offset that corresponds to
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// a particular column.
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function findColumn(string, goal, tabSize) {
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for (var pos = 0, col = 0;;) {
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var nextTab = string.indexOf("\t", pos);
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if (nextTab == -1) { nextTab = string.length; }
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var skipped = nextTab - pos;
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if (nextTab == string.length || col + skipped >= goal)
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{ return pos + Math.min(skipped, goal - col) }
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col += nextTab - pos;
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col += tabSize - (col % tabSize);
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pos = nextTab + 1;
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if (col >= goal) { return pos }
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}
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}
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var spaceStrs = [""];
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function spaceStr(n) {
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while (spaceStrs.length <= n)
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{ spaceStrs.push(lst(spaceStrs) + " "); }
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return spaceStrs[n]
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}
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function lst(arr) { return arr[arr.length-1] }
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function map(array, f) {
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var out = [];
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for (var i = 0; i < array.length; i++) { out[i] = f(array[i], i); }
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return out
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}
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function insertSorted(array, value, score) {
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var pos = 0, priority = score(value);
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while (pos < array.length && score(array[pos]) <= priority) { pos++; }
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array.splice(pos, 0, value);
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}
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function nothing() {}
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function createObj(base, props) {
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var inst;
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if (Object.create) {
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inst = Object.create(base);
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} else {
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nothing.prototype = base;
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inst = new nothing();
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}
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if (props) { copyObj(props, inst); }
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return inst
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}
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var nonASCIISingleCaseWordChar = /[\u00df\u0587\u0590-\u05f4\u0600-\u06ff\u3040-\u309f\u30a0-\u30ff\u3400-\u4db5\u4e00-\u9fcc\uac00-\ud7af]/;
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function isWordCharBasic(ch) {
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return /\w/.test(ch) || ch > "\x80" &&
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(ch.toUpperCase() != ch.toLowerCase() || nonASCIISingleCaseWordChar.test(ch))
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}
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function isWordChar(ch, helper) {
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if (!helper) { return isWordCharBasic(ch) }
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if (helper.source.indexOf("\\w") > -1 && isWordCharBasic(ch)) { return true }
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return helper.test(ch)
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}
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function isEmpty(obj) {
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for (var n in obj) { if (obj.hasOwnProperty(n) && obj[n]) { return false } }
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return true
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}
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// Extending unicode characters. A series of a non-extending char +
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// any number of extending chars is treated as a single unit as far
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// as editing and measuring is concerned. This is not fully correct,
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// since some scripts/fonts/browsers also treat other configurations
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// of code points as a group.
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var extendingChars = /[\u0300-\u036f\u0483-\u0489\u0591-\u05bd\u05bf\u05c1\u05c2\u05c4\u05c5\u05c7\u0610-\u061a\u064b-\u065e\u0670\u06d6-\u06dc\u06de-\u06e4\u06e7\u06e8\u06ea-\u06ed\u0711\u0730-\u074a\u07a6-\u07b0\u07eb-\u07f3\u0816-\u0819\u081b-\u0823\u0825-\u0827\u0829-\u082d\u0900-\u0902\u093c\u0941-\u0948\u094d\u0951-\u0955\u0962\u0963\u0981\u09bc\u09be\u09c1-\u09c4\u09cd\u09d7\u09e2\u09e3\u0a01\u0a02\u0a3c\u0a41\u0a42\u0a47\u0a48\u0a4b-\u0a4d\u0a51\u0a70\u0a71\u0a75\u0a81\u0a82\u0abc\u0ac1-\u0ac5\u0ac7\u0ac8\u0acd\u0ae2\u0ae3\u0b01\u0b3c\u0b3e\u0b3f\u0b41-\u0b44\u0b4d\u0b56\u0b57\u0b62\u0b63\u0b82\u0bbe\u0bc0\u0bcd\u0bd7\u0c3e-\u0c40\u0c46-\u0c48\u0c4a-\u0c4d\u0c55\u0c56\u0c62\u0c63\u0cbc\u0cbf\u0cc2\u0cc6\u0ccc\u0ccd\u0cd5\u0cd6\u0ce2\u0ce3\u0d3e\u0d41-\u0d44\u0d4d\u0d57\u0d62\u0d63\u0dca\u0dcf\u0dd2-\u0dd4\u0dd6\u0ddf\u0e31\u0e34-\u0e3a\u0e47-\u0e4e\u0eb1\u0eb4-\u0eb9\u0ebb\u0ebc\u0ec8-\u0ecd\u0f18\u0f19\u0f35\u0f37\u0f39\u0f71-\u0f7e\u0f80-\u0f84\u0f86\u0f87\u0f90-\u0f97\u0f99-\u0fbc\u0fc6\u102d-\u1030\u1032-\u1037\u1039\u103a\u103d\u103e\u1058\u1059\u105e-\u1060\u1071-\u1074\u1082\u1085\u1086\u108d\u109d\u135f\u1712-\u1714\u1732-\u1734\u1752\u1753\u1772\u1773\u17b7-\u17bd\u17c6\u17c9-\u17d3\u17dd\u180b-\u180d\u18a9\u1920-\u1922\u1927\u1928\u1932\u1939-\u193b\u1a17\u1a18\u1a56\u1a58-\u1a5e\u1a60\u1a62\u1a65-\u1a6c\u1a73-\u1a7c\u1a7f\u1b00-\u1b03\u1b34\u1b36-\u1b3a\u1b3c\u1b42\u1b6b-\u1b73\u1b80\u1b81\u1ba2-\u1ba5\u1ba8\u1ba9\u1c2c-\u1c33\u1c36\u1c37\u1cd0-\u1cd2\u1cd4-\u1ce0\u1ce2-\u1ce8\u1ced\u1dc0-\u1de6\u1dfd-\u1dff\u200c\u200d\u20d0-\u20f0\u2cef-\u2cf1\u2de0-\u2dff\u302a-\u302f\u3099\u309a\ua66f-\ua672\ua67c\ua67d\ua6f0\ua6f1\ua802\ua806\ua80b\ua825\ua826\ua8c4\ua8e0-\ua8f1\ua926-\ua92d\ua947-\ua951\ua980-\ua982\ua9b3\ua9b6-\ua9b9\ua9bc\uaa29-\uaa2e\uaa31\uaa32\uaa35\uaa36\uaa43\uaa4c\uaab0\uaab2-\uaab4\uaab7\uaab8\uaabe\uaabf\uaac1\uabe5\uabe8\uabed\udc00-\udfff\ufb1e\ufe00-\ufe0f\ufe20-\ufe26\uff9e\uff9f]/;
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function isExtendingChar(ch) { return ch.charCodeAt(0) >= 768 && extendingChars.test(ch) }
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// Returns a number from the range [`0`; `str.length`] unless `pos` is outside that range.
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function skipExtendingChars(str, pos, dir) {
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while ((dir < 0 ? pos > 0 : pos < str.length) && isExtendingChar(str.charAt(pos))) { pos += dir; }
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return pos
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}
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// Returns the value from the range [`from`; `to`] that satisfies
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// `pred` and is closest to `from`. Assumes that at least `to`
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// satisfies `pred`. Supports `from` being greater than `to`.
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function findFirst(pred, from, to) {
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// At any point we are certain `to` satisfies `pred`, don't know
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// whether `from` does.
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var dir = from > to ? -1 : 1;
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for (;;) {
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if (from == to) { return from }
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var midF = (from + to) / 2, mid = dir < 0 ? Math.ceil(midF) : Math.floor(midF);
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if (mid == from) { return pred(mid) ? from : to }
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if (pred(mid)) { to = mid; }
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else { from = mid + dir; }
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}
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}
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// BIDI HELPERS
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function iterateBidiSections(order, from, to, f) {
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if (!order) { return f(from, to, "ltr", 0) }
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var found = false;
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for (var i = 0; i < order.length; ++i) {
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var part = order[i];
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if (part.from < to && part.to > from || from == to && part.to == from) {
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f(Math.max(part.from, from), Math.min(part.to, to), part.level == 1 ? "rtl" : "ltr", i);
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found = true;
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}
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}
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if (!found) { f(from, to, "ltr"); }
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}
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var bidiOther = null;
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function getBidiPartAt(order, ch, sticky) {
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var found;
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bidiOther = null;
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for (var i = 0; i < order.length; ++i) {
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var cur = order[i];
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if (cur.from < ch && cur.to > ch) { return i }
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if (cur.to == ch) {
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if (cur.from != cur.to && sticky == "before") { found = i; }
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else { bidiOther = i; }
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}
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if (cur.from == ch) {
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if (cur.from != cur.to && sticky != "before") { found = i; }
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else { bidiOther = i; }
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}
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}
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return found != null ? found : bidiOther
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}
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// Bidirectional ordering algorithm
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// See http://unicode.org/reports/tr9/tr9-13.html for the algorithm
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// that this (partially) implements.
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// One-char codes used for character types:
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// L (L): Left-to-Right
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// R (R): Right-to-Left
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// r (AL): Right-to-Left Arabic
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// 1 (EN): European Number
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// + (ES): European Number Separator
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// % (ET): European Number Terminator
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// n (AN): Arabic Number
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// , (CS): Common Number Separator
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// m (NSM): Non-Spacing Mark
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// b (BN): Boundary Neutral
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// s (B): Paragraph Separator
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// t (S): Segment Separator
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// w (WS): Whitespace
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// N (ON): Other Neutrals
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// Returns null if characters are ordered as they appear
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// (left-to-right), or an array of sections ({from, to, level}
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// objects) in the order in which they occur visually.
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var bidiOrdering = (function() {
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// Character types for codepoints 0 to 0xff
|
|
var lowTypes = "bbbbbbbbbtstwsbbbbbbbbbbbbbbssstwNN%%%NNNNNN,N,N1111111111NNNNNNNLLLLLLLLLLLLLLLLLLLLLLLLLLNNNNNNLLLLLLLLLLLLLLLLLLLLLLLLLLNNNNbbbbbbsbbbbbbbbbbbbbbbbbbbbbbbbbb,N%%%%NNNNLNNNNN%%11NLNNN1LNNNNNLLLLLLLLLLLLLLLLLLLLLLLNLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLN";
|
|
// Character types for codepoints 0x600 to 0x6f9
|
|
var arabicTypes = "nnnnnnNNr%%r,rNNmmmmmmmmmmmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmmmmmmmmmmmmmmmnnnnnnnnnn%nnrrrmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmnNmmmmmmrrmmNmmmmrr1111111111";
|
|
function charType(code) {
|
|
if (code <= 0xf7) { return lowTypes.charAt(code) }
|
|
else if (0x590 <= code && code <= 0x5f4) { return "R" }
|
|
else if (0x600 <= code && code <= 0x6f9) { return arabicTypes.charAt(code - 0x600) }
|
|
else if (0x6ee <= code && code <= 0x8ac) { return "r" }
|
|
else if (0x2000 <= code && code <= 0x200b) { return "w" }
|
|
else if (code == 0x200c) { return "b" }
|
|
else { return "L" }
|
|
}
|
|
|
|
var bidiRE = /[\u0590-\u05f4\u0600-\u06ff\u0700-\u08ac]/;
|
|
var isNeutral = /[stwN]/, isStrong = /[LRr]/, countsAsLeft = /[Lb1n]/, countsAsNum = /[1n]/;
|
|
|
|
function BidiSpan(level, from, to) {
|
|
this.level = level;
|
|
this.from = from; this.to = to;
|
|
}
|
|
|
|
return function(str, direction) {
|
|
var outerType = direction == "ltr" ? "L" : "R";
|
|
|
|
if (str.length == 0 || direction == "ltr" && !bidiRE.test(str)) { return false }
|
|
var len = str.length, types = [];
|
|
for (var i = 0; i < len; ++i)
|
|
{ types.push(charType(str.charCodeAt(i))); }
|
|
|
|
// W1. Examine each non-spacing mark (NSM) in the level run, and
|
|
// change the type of the NSM to the type of the previous
|
|
// character. If the NSM is at the start of the level run, it will
|
|
// get the type of sor.
|
|
for (var i$1 = 0, prev = outerType; i$1 < len; ++i$1) {
|
|
var type = types[i$1];
|
|
if (type == "m") { types[i$1] = prev; }
|
|
else { prev = type; }
|
|
}
|
|
|
|
// W2. Search backwards from each instance of a European number
|
|
// until the first strong type (R, L, AL, or sor) is found. If an
|
|
// AL is found, change the type of the European number to Arabic
|
|
// number.
|
|
// W3. Change all ALs to R.
|
|
for (var i$2 = 0, cur = outerType; i$2 < len; ++i$2) {
|
|
var type$1 = types[i$2];
|
|
if (type$1 == "1" && cur == "r") { types[i$2] = "n"; }
|
|
else if (isStrong.test(type$1)) { cur = type$1; if (type$1 == "r") { types[i$2] = "R"; } }
|
|
}
|
|
|
|
// W4. A single European separator between two European numbers
|
|
// changes to a European number. A single common separator between
|
|
// two numbers of the same type changes to that type.
|
|
for (var i$3 = 1, prev$1 = types[0]; i$3 < len - 1; ++i$3) {
|
|
var type$2 = types[i$3];
|
|
if (type$2 == "+" && prev$1 == "1" && types[i$3+1] == "1") { types[i$3] = "1"; }
|
|
else if (type$2 == "," && prev$1 == types[i$3+1] &&
|
|
(prev$1 == "1" || prev$1 == "n")) { types[i$3] = prev$1; }
|
|
prev$1 = type$2;
|
|
}
|
|
|
|
// W5. A sequence of European terminators adjacent to European
|
|
// numbers changes to all European numbers.
|
|
// W6. Otherwise, separators and terminators change to Other
|
|
// Neutral.
|
|
for (var i$4 = 0; i$4 < len; ++i$4) {
|
|
var type$3 = types[i$4];
|
|
if (type$3 == ",") { types[i$4] = "N"; }
|
|
else if (type$3 == "%") {
|
|
var end = (void 0);
|
|
for (end = i$4 + 1; end < len && types[end] == "%"; ++end) {}
|
|
var replace = (i$4 && types[i$4-1] == "!") || (end < len && types[end] == "1") ? "1" : "N";
|
|
for (var j = i$4; j < end; ++j) { types[j] = replace; }
|
|
i$4 = end - 1;
|
|
}
|
|
}
|
|
|
|
// W7. Search backwards from each instance of a European number
|
|
// until the first strong type (R, L, or sor) is found. If an L is
|
|
// found, then change the type of the European number to L.
|
|
for (var i$5 = 0, cur$1 = outerType; i$5 < len; ++i$5) {
|
|
var type$4 = types[i$5];
|
|
if (cur$1 == "L" && type$4 == "1") { types[i$5] = "L"; }
|
|
else if (isStrong.test(type$4)) { cur$1 = type$4; }
|
|
}
|
|
|
|
// N1. A sequence of neutrals takes the direction of the
|
|
// surrounding strong text if the text on both sides has the same
|
|
// direction. European and Arabic numbers act as if they were R in
|
|
// terms of their influence on neutrals. Start-of-level-run (sor)
|
|
// and end-of-level-run (eor) are used at level run boundaries.
|
|
// N2. Any remaining neutrals take the embedding direction.
|
|
for (var i$6 = 0; i$6 < len; ++i$6) {
|
|
if (isNeutral.test(types[i$6])) {
|
|
var end$1 = (void 0);
|
|
for (end$1 = i$6 + 1; end$1 < len && isNeutral.test(types[end$1]); ++end$1) {}
|
|
var before = (i$6 ? types[i$6-1] : outerType) == "L";
|
|
var after = (end$1 < len ? types[end$1] : outerType) == "L";
|
|
var replace$1 = before == after ? (before ? "L" : "R") : outerType;
|
|
for (var j$1 = i$6; j$1 < end$1; ++j$1) { types[j$1] = replace$1; }
|
|
i$6 = end$1 - 1;
|
|
}
|
|
}
|
|
|
|
// Here we depart from the documented algorithm, in order to avoid
|
|
// building up an actual levels array. Since there are only three
|
|
// levels (0, 1, 2) in an implementation that doesn't take
|
|
// explicit embedding into account, we can build up the order on
|
|
// the fly, without following the level-based algorithm.
|
|
var order = [], m;
|
|
for (var i$7 = 0; i$7 < len;) {
|
|
if (countsAsLeft.test(types[i$7])) {
|
|
var start = i$7;
|
|
for (++i$7; i$7 < len && countsAsLeft.test(types[i$7]); ++i$7) {}
|
|
order.push(new BidiSpan(0, start, i$7));
|
|
} else {
|
|
var pos = i$7, at = order.length, isRTL = direction == "rtl" ? 1 : 0;
|
|
for (++i$7; i$7 < len && types[i$7] != "L"; ++i$7) {}
|
|
for (var j$2 = pos; j$2 < i$7;) {
|
|
if (countsAsNum.test(types[j$2])) {
|
|
if (pos < j$2) { order.splice(at, 0, new BidiSpan(1, pos, j$2)); at += isRTL; }
|
|
var nstart = j$2;
|
|
for (++j$2; j$2 < i$7 && countsAsNum.test(types[j$2]); ++j$2) {}
|
|
order.splice(at, 0, new BidiSpan(2, nstart, j$2));
|
|
at += isRTL;
|
|
pos = j$2;
|
|
} else { ++j$2; }
|
|
}
|
|
if (pos < i$7) { order.splice(at, 0, new BidiSpan(1, pos, i$7)); }
|
|
}
|
|
}
|
|
if (direction == "ltr") {
|
|
if (order[0].level == 1 && (m = str.match(/^\s+/))) {
|
|
order[0].from = m[0].length;
|
|
order.unshift(new BidiSpan(0, 0, m[0].length));
|
|
}
|
|
if (lst(order).level == 1 && (m = str.match(/\s+$/))) {
|
|
lst(order).to -= m[0].length;
|
|
order.push(new BidiSpan(0, len - m[0].length, len));
|
|
}
|
|
}
|
|
|
|
return direction == "rtl" ? order.reverse() : order
|
|
}
|
|
})();
|
|
|
|
// Get the bidi ordering for the given line (and cache it). Returns
|
|
// false for lines that are fully left-to-right, and an array of
|
|
// BidiSpan objects otherwise.
|
|
function getOrder(line, direction) {
|
|
var order = line.order;
|
|
if (order == null) { order = line.order = bidiOrdering(line.text, direction); }
|
|
return order
|
|
}
|
|
|
|
// EVENT HANDLING
|
|
|
|
// Lightweight event framework. on/off also work on DOM nodes,
|
|
// registering native DOM handlers.
|
|
|
|
var noHandlers = [];
|
|
|
|
var on = function(emitter, type, f) {
|
|
if (emitter.addEventListener) {
|
|
emitter.addEventListener(type, f, false);
|
|
} else if (emitter.attachEvent) {
|
|
emitter.attachEvent("on" + type, f);
|
|
} else {
|
|
var map = emitter._handlers || (emitter._handlers = {});
|
|
map[type] = (map[type] || noHandlers).concat(f);
|
|
}
|
|
};
|
|
|
|
function getHandlers(emitter, type) {
|
|
return emitter._handlers && emitter._handlers[type] || noHandlers
|
|
}
|
|
|
|
function off(emitter, type, f) {
|
|
if (emitter.removeEventListener) {
|
|
emitter.removeEventListener(type, f, false);
|
|
} else if (emitter.detachEvent) {
|
|
emitter.detachEvent("on" + type, f);
|
|
} else {
|
|
var map = emitter._handlers, arr = map && map[type];
|
|
if (arr) {
|
|
var index = indexOf(arr, f);
|
|
if (index > -1)
|
|
{ map[type] = arr.slice(0, index).concat(arr.slice(index + 1)); }
|
|
}
|
|
}
|
|
}
|
|
|
|
function signal(emitter, type /*, values...*/) {
|
|
var handlers = getHandlers(emitter, type);
|
|
if (!handlers.length) { return }
|
|
var args = Array.prototype.slice.call(arguments, 2);
|
|
for (var i = 0; i < handlers.length; ++i) { handlers[i].apply(null, args); }
|
|
}
|
|
|
|
// The DOM events that CodeMirror handles can be overridden by
|
|
// registering a (non-DOM) handler on the editor for the event name,
|
|
// and preventDefault-ing the event in that handler.
|
|
function signalDOMEvent(cm, e, override) {
|
|
if (typeof e == "string")
|
|
{ e = {type: e, preventDefault: function() { this.defaultPrevented = true; }}; }
|
|
signal(cm, override || e.type, cm, e);
|
|
return e_defaultPrevented(e) || e.codemirrorIgnore
|
|
}
|
|
|
|
function signalCursorActivity(cm) {
|
|
var arr = cm._handlers && cm._handlers.cursorActivity;
|
|
if (!arr) { return }
|
|
var set = cm.curOp.cursorActivityHandlers || (cm.curOp.cursorActivityHandlers = []);
|
|
for (var i = 0; i < arr.length; ++i) { if (indexOf(set, arr[i]) == -1)
|
|
{ set.push(arr[i]); } }
|
|
}
|
|
|
|
function hasHandler(emitter, type) {
|
|
return getHandlers(emitter, type).length > 0
|
|
}
|
|
|
|
// Add on and off methods to a constructor's prototype, to make
|
|
// registering events on such objects more convenient.
|
|
function eventMixin(ctor) {
|
|
ctor.prototype.on = function(type, f) {on(this, type, f);};
|
|
ctor.prototype.off = function(type, f) {off(this, type, f);};
|
|
}
|
|
|
|
// Due to the fact that we still support jurassic IE versions, some
|
|
// compatibility wrappers are needed.
|
|
|
|
function e_preventDefault(e) {
|
|
if (e.preventDefault) { e.preventDefault(); }
|
|
else { e.returnValue = false; }
|
|
}
|
|
function e_stopPropagation(e) {
|
|
if (e.stopPropagation) { e.stopPropagation(); }
|
|
else { e.cancelBubble = true; }
|
|
}
|
|
function e_defaultPrevented(e) {
|
|
return e.defaultPrevented != null ? e.defaultPrevented : e.returnValue == false
|
|
}
|
|
function e_stop(e) {e_preventDefault(e); e_stopPropagation(e);}
|
|
|
|
function e_target(e) {return e.target || e.srcElement}
|
|
function e_button(e) {
|
|
var b = e.which;
|
|
if (b == null) {
|
|
if (e.button & 1) { b = 1; }
|
|
else if (e.button & 2) { b = 3; }
|
|
else if (e.button & 4) { b = 2; }
|
|
}
|
|
if (mac && e.ctrlKey && b == 1) { b = 3; }
|
|
return b
|
|
}
|
|
|
|
// Detect drag-and-drop
|
|
var dragAndDrop = function() {
|
|
// There is *some* kind of drag-and-drop support in IE6-8, but I
|
|
// couldn't get it to work yet.
|
|
if (ie && ie_version < 9) { return false }
|
|
var div = elt('div');
|
|
return "draggable" in div || "dragDrop" in div
|
|
}();
|
|
|
|
var zwspSupported;
|
|
function zeroWidthElement(measure) {
|
|
if (zwspSupported == null) {
|
|
var test = elt("span", "\u200b");
|
|
removeChildrenAndAdd(measure, elt("span", [test, document.createTextNode("x")]));
|
|
if (measure.firstChild.offsetHeight != 0)
|
|
{ zwspSupported = test.offsetWidth <= 1 && test.offsetHeight > 2 && !(ie && ie_version < 8); }
|
|
}
|
|
var node = zwspSupported ? elt("span", "\u200b") :
|
|
elt("span", "\u00a0", null, "display: inline-block; width: 1px; margin-right: -1px");
|
|
node.setAttribute("cm-text", "");
|
|
return node
|
|
}
|
|
|
|
// Feature-detect IE's crummy client rect reporting for bidi text
|
|
var badBidiRects;
|
|
function hasBadBidiRects(measure) {
|
|
if (badBidiRects != null) { return badBidiRects }
|
|
var txt = removeChildrenAndAdd(measure, document.createTextNode("A\u062eA"));
|
|
var r0 = range(txt, 0, 1).getBoundingClientRect();
|
|
var r1 = range(txt, 1, 2).getBoundingClientRect();
|
|
removeChildren(measure);
|
|
if (!r0 || r0.left == r0.right) { return false } // Safari returns null in some cases (#2780)
|
|
return badBidiRects = (r1.right - r0.right < 3)
|
|
}
|
|
|
|
// See if "".split is the broken IE version, if so, provide an
|
|
// alternative way to split lines.
|
|
var splitLinesAuto = "\n\nb".split(/\n/).length != 3 ? function (string) {
|
|
var pos = 0, result = [], l = string.length;
|
|
while (pos <= l) {
|
|
var nl = string.indexOf("\n", pos);
|
|
if (nl == -1) { nl = string.length; }
|
|
var line = string.slice(pos, string.charAt(nl - 1) == "\r" ? nl - 1 : nl);
|
|
var rt = line.indexOf("\r");
|
|
if (rt != -1) {
|
|
result.push(line.slice(0, rt));
|
|
pos += rt + 1;
|
|
} else {
|
|
result.push(line);
|
|
pos = nl + 1;
|
|
}
|
|
}
|
|
return result
|
|
} : function (string) { return string.split(/\r\n?|\n/); };
|
|
|
|
var hasSelection = window.getSelection ? function (te) {
|
|
try { return te.selectionStart != te.selectionEnd }
|
|
catch(e) { return false }
|
|
} : function (te) {
|
|
var range;
|
|
try {range = te.ownerDocument.selection.createRange();}
|
|
catch(e) {}
|
|
if (!range || range.parentElement() != te) { return false }
|
|
return range.compareEndPoints("StartToEnd", range) != 0
|
|
};
|
|
|
|
var hasCopyEvent = (function () {
|
|
var e = elt("div");
|
|
if ("oncopy" in e) { return true }
|
|
e.setAttribute("oncopy", "return;");
|
|
return typeof e.oncopy == "function"
|
|
})();
|
|
|
|
var badZoomedRects = null;
|
|
function hasBadZoomedRects(measure) {
|
|
if (badZoomedRects != null) { return badZoomedRects }
|
|
var node = removeChildrenAndAdd(measure, elt("span", "x"));
|
|
var normal = node.getBoundingClientRect();
|
|
var fromRange = range(node, 0, 1).getBoundingClientRect();
|
|
return badZoomedRects = Math.abs(normal.left - fromRange.left) > 1
|
|
}
|
|
|
|
// Known modes, by name and by MIME
|
|
var modes = {}, mimeModes = {};
|
|
|
|
// Extra arguments are stored as the mode's dependencies, which is
|
|
// used by (legacy) mechanisms like loadmode.js to automatically
|
|
// load a mode. (Preferred mechanism is the require/define calls.)
|
|
function defineMode(name, mode) {
|
|
if (arguments.length > 2)
|
|
{ mode.dependencies = Array.prototype.slice.call(arguments, 2); }
|
|
modes[name] = mode;
|
|
}
|
|
|
|
function defineMIME(mime, spec) {
|
|
mimeModes[mime] = spec;
|
|
}
|
|
|
|
// Given a MIME type, a {name, ...options} config object, or a name
|
|
// string, return a mode config object.
|
|
function resolveMode(spec) {
|
|
if (typeof spec == "string" && mimeModes.hasOwnProperty(spec)) {
|
|
spec = mimeModes[spec];
|
|
} else if (spec && typeof spec.name == "string" && mimeModes.hasOwnProperty(spec.name)) {
|
|
var found = mimeModes[spec.name];
|
|
if (typeof found == "string") { found = {name: found}; }
|
|
spec = createObj(found, spec);
|
|
spec.name = found.name;
|
|
} else if (typeof spec == "string" && /^[\w\-]+\/[\w\-]+\+xml$/.test(spec)) {
|
|
return resolveMode("application/xml")
|
|
} else if (typeof spec == "string" && /^[\w\-]+\/[\w\-]+\+json$/.test(spec)) {
|
|
return resolveMode("application/json")
|
|
}
|
|
if (typeof spec == "string") { return {name: spec} }
|
|
else { return spec || {name: "null"} }
|
|
}
|
|
|
|
// Given a mode spec (anything that resolveMode accepts), find and
|
|
// initialize an actual mode object.
|
|
function getMode(options, spec) {
|
|
spec = resolveMode(spec);
|
|
var mfactory = modes[spec.name];
|
|
if (!mfactory) { return getMode(options, "text/plain") }
|
|
var modeObj = mfactory(options, spec);
|
|
if (modeExtensions.hasOwnProperty(spec.name)) {
|
|
var exts = modeExtensions[spec.name];
|
|
for (var prop in exts) {
|
|
if (!exts.hasOwnProperty(prop)) { continue }
|
|
if (modeObj.hasOwnProperty(prop)) { modeObj["_" + prop] = modeObj[prop]; }
|
|
modeObj[prop] = exts[prop];
|
|
}
|
|
}
|
|
modeObj.name = spec.name;
|
|
if (spec.helperType) { modeObj.helperType = spec.helperType; }
|
|
if (spec.modeProps) { for (var prop$1 in spec.modeProps)
|
|
{ modeObj[prop$1] = spec.modeProps[prop$1]; } }
|
|
|
|
return modeObj
|
|
}
|
|
|
|
// This can be used to attach properties to mode objects from
|
|
// outside the actual mode definition.
|
|
var modeExtensions = {};
|
|
function extendMode(mode, properties) {
|
|
var exts = modeExtensions.hasOwnProperty(mode) ? modeExtensions[mode] : (modeExtensions[mode] = {});
|
|
copyObj(properties, exts);
|
|
}
|
|
|
|
function copyState(mode, state) {
|
|
if (state === true) { return state }
|
|
if (mode.copyState) { return mode.copyState(state) }
|
|
var nstate = {};
|
|
for (var n in state) {
|
|
var val = state[n];
|
|
if (val instanceof Array) { val = val.concat([]); }
|
|
nstate[n] = val;
|
|
}
|
|
return nstate
|
|
}
|
|
|
|
// Given a mode and a state (for that mode), find the inner mode and
|
|
// state at the position that the state refers to.
|
|
function innerMode(mode, state) {
|
|
var info;
|
|
while (mode.innerMode) {
|
|
info = mode.innerMode(state);
|
|
if (!info || info.mode == mode) { break }
|
|
state = info.state;
|
|
mode = info.mode;
|
|
}
|
|
return info || {mode: mode, state: state}
|
|
}
|
|
|
|
function startState(mode, a1, a2) {
|
|
return mode.startState ? mode.startState(a1, a2) : true
|
|
}
|
|
|
|
// STRING STREAM
|
|
|
|
// Fed to the mode parsers, provides helper functions to make
|
|
// parsers more succinct.
|
|
|
|
var StringStream = function(string, tabSize, lineOracle) {
|
|
this.pos = this.start = 0;
|
|
this.string = string;
|
|
this.tabSize = tabSize || 8;
|
|
this.lastColumnPos = this.lastColumnValue = 0;
|
|
this.lineStart = 0;
|
|
this.lineOracle = lineOracle;
|
|
};
|
|
|
|
StringStream.prototype.eol = function () {return this.pos >= this.string.length};
|
|
StringStream.prototype.sol = function () {return this.pos == this.lineStart};
|
|
StringStream.prototype.peek = function () {return this.string.charAt(this.pos) || undefined};
|
|
StringStream.prototype.next = function () {
|
|
if (this.pos < this.string.length)
|
|
{ return this.string.charAt(this.pos++) }
|
|
};
|
|
StringStream.prototype.eat = function (match) {
|
|
var ch = this.string.charAt(this.pos);
|
|
var ok;
|
|
if (typeof match == "string") { ok = ch == match; }
|
|
else { ok = ch && (match.test ? match.test(ch) : match(ch)); }
|
|
if (ok) {++this.pos; return ch}
|
|
};
|
|
StringStream.prototype.eatWhile = function (match) {
|
|
var start = this.pos;
|
|
while (this.eat(match)){}
|
|
return this.pos > start
|
|
};
|
|
StringStream.prototype.eatSpace = function () {
|
|
var start = this.pos;
|
|
while (/[\s\u00a0]/.test(this.string.charAt(this.pos))) { ++this.pos; }
|
|
return this.pos > start
|
|
};
|
|
StringStream.prototype.skipToEnd = function () {this.pos = this.string.length;};
|
|
StringStream.prototype.skipTo = function (ch) {
|
|
var found = this.string.indexOf(ch, this.pos);
|
|
if (found > -1) {this.pos = found; return true}
|
|
};
|
|
StringStream.prototype.backUp = function (n) {this.pos -= n;};
|
|
StringStream.prototype.column = function () {
|
|
if (this.lastColumnPos < this.start) {
|
|
this.lastColumnValue = countColumn(this.string, this.start, this.tabSize, this.lastColumnPos, this.lastColumnValue);
|
|
this.lastColumnPos = this.start;
|
|
}
|
|
return this.lastColumnValue - (this.lineStart ? countColumn(this.string, this.lineStart, this.tabSize) : 0)
|
|
};
|
|
StringStream.prototype.indentation = function () {
|
|
return countColumn(this.string, null, this.tabSize) -
|
|
(this.lineStart ? countColumn(this.string, this.lineStart, this.tabSize) : 0)
|
|
};
|
|
StringStream.prototype.match = function (pattern, consume, caseInsensitive) {
|
|
if (typeof pattern == "string") {
|
|
var cased = function (str) { return caseInsensitive ? str.toLowerCase() : str; };
|
|
var substr = this.string.substr(this.pos, pattern.length);
|
|
if (cased(substr) == cased(pattern)) {
|
|
if (consume !== false) { this.pos += pattern.length; }
|
|
return true
|
|
}
|
|
} else {
|
|
var match = this.string.slice(this.pos).match(pattern);
|
|
if (match && match.index > 0) { return null }
|
|
if (match && consume !== false) { this.pos += match[0].length; }
|
|
return match
|
|
}
|
|
};
|
|
StringStream.prototype.current = function (){return this.string.slice(this.start, this.pos)};
|
|
StringStream.prototype.hideFirstChars = function (n, inner) {
|
|
this.lineStart += n;
|
|
try { return inner() }
|
|
finally { this.lineStart -= n; }
|
|
};
|
|
StringStream.prototype.lookAhead = function (n) {
|
|
var oracle = this.lineOracle;
|
|
return oracle && oracle.lookAhead(n)
|
|
};
|
|
StringStream.prototype.baseToken = function () {
|
|
var oracle = this.lineOracle;
|
|
return oracle && oracle.baseToken(this.pos)
|
|
};
|
|
|
|
// Find the line object corresponding to the given line number.
|
|
function getLine(doc, n) {
|
|
n -= doc.first;
|
|
if (n < 0 || n >= doc.size) { throw new Error("There is no line " + (n + doc.first) + " in the document.") }
|
|
var chunk = doc;
|
|
while (!chunk.lines) {
|
|
for (var i = 0;; ++i) {
|
|
var child = chunk.children[i], sz = child.chunkSize();
|
|
if (n < sz) { chunk = child; break }
|
|
n -= sz;
|
|
}
|
|
}
|
|
return chunk.lines[n]
|
|
}
|
|
|
|
// Get the part of a document between two positions, as an array of
|
|
// strings.
|
|
function getBetween(doc, start, end) {
|
|
var out = [], n = start.line;
|
|
doc.iter(start.line, end.line + 1, function (line) {
|
|
var text = line.text;
|
|
if (n == end.line) { text = text.slice(0, end.ch); }
|
|
if (n == start.line) { text = text.slice(start.ch); }
|
|
out.push(text);
|
|
++n;
|
|
});
|
|
return out
|
|
}
|
|
// Get the lines between from and to, as array of strings.
|
|
function getLines(doc, from, to) {
|
|
var out = [];
|
|
doc.iter(from, to, function (line) { out.push(line.text); }); // iter aborts when callback returns truthy value
|
|
return out
|
|
}
|
|
|
|
// Update the height of a line, propagating the height change
|
|
// upwards to parent nodes.
|
|
function updateLineHeight(line, height) {
|
|
var diff = height - line.height;
|
|
if (diff) { for (var n = line; n; n = n.parent) { n.height += diff; } }
|
|
}
|
|
|
|
// Given a line object, find its line number by walking up through
|
|
// its parent links.
|
|
function lineNo(line) {
|
|
if (line.parent == null) { return null }
|
|
var cur = line.parent, no = indexOf(cur.lines, line);
|
|
for (var chunk = cur.parent; chunk; cur = chunk, chunk = chunk.parent) {
|
|
for (var i = 0;; ++i) {
|
|
if (chunk.children[i] == cur) { break }
|
|
no += chunk.children[i].chunkSize();
|
|
}
|
|
}
|
|
return no + cur.first
|
|
}
|
|
|
|
// Find the line at the given vertical position, using the height
|
|
// information in the document tree.
|
|
function lineAtHeight(chunk, h) {
|
|
var n = chunk.first;
|
|
outer: do {
|
|
for (var i$1 = 0; i$1 < chunk.children.length; ++i$1) {
|
|
var child = chunk.children[i$1], ch = child.height;
|
|
if (h < ch) { chunk = child; continue outer }
|
|
h -= ch;
|
|
n += child.chunkSize();
|
|
}
|
|
return n
|
|
} while (!chunk.lines)
|
|
var i = 0;
|
|
for (; i < chunk.lines.length; ++i) {
|
|
var line = chunk.lines[i], lh = line.height;
|
|
if (h < lh) { break }
|
|
h -= lh;
|
|
}
|
|
return n + i
|
|
}
|
|
|
|
function isLine(doc, l) {return l >= doc.first && l < doc.first + doc.size}
|
|
|
|
function lineNumberFor(options, i) {
|
|
return String(options.lineNumberFormatter(i + options.firstLineNumber))
|
|
}
|
|
|
|
// A Pos instance represents a position within the text.
|
|
function Pos(line, ch, sticky) {
|
|
if ( sticky === void 0 ) sticky = null;
|
|
|
|
if (!(this instanceof Pos)) { return new Pos(line, ch, sticky) }
|
|
this.line = line;
|
|
this.ch = ch;
|
|
this.sticky = sticky;
|
|
}
|
|
|
|
// Compare two positions, return 0 if they are the same, a negative
|
|
// number when a is less, and a positive number otherwise.
|
|
function cmp(a, b) { return a.line - b.line || a.ch - b.ch }
|
|
|
|
function equalCursorPos(a, b) { return a.sticky == b.sticky && cmp(a, b) == 0 }
|
|
|
|
function copyPos(x) {return Pos(x.line, x.ch)}
|
|
function maxPos(a, b) { return cmp(a, b) < 0 ? b : a }
|
|
function minPos(a, b) { return cmp(a, b) < 0 ? a : b }
|
|
|
|
// Most of the external API clips given positions to make sure they
|
|
// actually exist within the document.
|
|
function clipLine(doc, n) {return Math.max(doc.first, Math.min(n, doc.first + doc.size - 1))}
|
|
function clipPos(doc, pos) {
|
|
if (pos.line < doc.first) { return Pos(doc.first, 0) }
|
|
var last = doc.first + doc.size - 1;
|
|
if (pos.line > last) { return Pos(last, getLine(doc, last).text.length) }
|
|
return clipToLen(pos, getLine(doc, pos.line).text.length)
|
|
}
|
|
function clipToLen(pos, linelen) {
|
|
var ch = pos.ch;
|
|
if (ch == null || ch > linelen) { return Pos(pos.line, linelen) }
|
|
else if (ch < 0) { return Pos(pos.line, 0) }
|
|
else { return pos }
|
|
}
|
|
function clipPosArray(doc, array) {
|
|
var out = [];
|
|
for (var i = 0; i < array.length; i++) { out[i] = clipPos(doc, array[i]); }
|
|
return out
|
|
}
|
|
|
|
var SavedContext = function(state, lookAhead) {
|
|
this.state = state;
|
|
this.lookAhead = lookAhead;
|
|
};
|
|
|
|
var Context = function(doc, state, line, lookAhead) {
|
|
this.state = state;
|
|
this.doc = doc;
|
|
this.line = line;
|
|
this.maxLookAhead = lookAhead || 0;
|
|
this.baseTokens = null;
|
|
this.baseTokenPos = 1;
|
|
};
|
|
|
|
Context.prototype.lookAhead = function (n) {
|
|
var line = this.doc.getLine(this.line + n);
|
|
if (line != null && n > this.maxLookAhead) { this.maxLookAhead = n; }
|
|
return line
|
|
};
|
|
|
|
Context.prototype.baseToken = function (n) {
|
|
if (!this.baseTokens) { return null }
|
|
while (this.baseTokens[this.baseTokenPos] <= n)
|
|
{ this.baseTokenPos += 2; }
|
|
var type = this.baseTokens[this.baseTokenPos + 1];
|
|
return {type: type && type.replace(/( |^)overlay .*/, ""),
|
|
size: this.baseTokens[this.baseTokenPos] - n}
|
|
};
|
|
|
|
Context.prototype.nextLine = function () {
|
|
this.line++;
|
|
if (this.maxLookAhead > 0) { this.maxLookAhead--; }
|
|
};
|
|
|
|
Context.fromSaved = function (doc, saved, line) {
|
|
if (saved instanceof SavedContext)
|
|
{ return new Context(doc, copyState(doc.mode, saved.state), line, saved.lookAhead) }
|
|
else
|
|
{ return new Context(doc, copyState(doc.mode, saved), line) }
|
|
};
|
|
|
|
Context.prototype.save = function (copy) {
|
|
var state = copy !== false ? copyState(this.doc.mode, this.state) : this.state;
|
|
return this.maxLookAhead > 0 ? new SavedContext(state, this.maxLookAhead) : state
|
|
};
|
|
|
|
|
|
// Compute a style array (an array starting with a mode generation
|
|
// -- for invalidation -- followed by pairs of end positions and
|
|
// style strings), which is used to highlight the tokens on the
|
|
// line.
|
|
function highlightLine(cm, line, context, forceToEnd) {
|
|
// A styles array always starts with a number identifying the
|
|
// mode/overlays that it is based on (for easy invalidation).
|
|
var st = [cm.state.modeGen], lineClasses = {};
|
|
// Compute the base array of styles
|
|
runMode(cm, line.text, cm.doc.mode, context, function (end, style) { return st.push(end, style); },
|
|
lineClasses, forceToEnd);
|
|
var state = context.state;
|
|
|
|
// Run overlays, adjust style array.
|
|
var loop = function ( o ) {
|
|
context.baseTokens = st;
|
|
var overlay = cm.state.overlays[o], i = 1, at = 0;
|
|
context.state = true;
|
|
runMode(cm, line.text, overlay.mode, context, function (end, style) {
|
|
var start = i;
|
|
// Ensure there's a token end at the current position, and that i points at it
|
|
while (at < end) {
|
|
var i_end = st[i];
|
|
if (i_end > end)
|
|
{ st.splice(i, 1, end, st[i+1], i_end); }
|
|
i += 2;
|
|
at = Math.min(end, i_end);
|
|
}
|
|
if (!style) { return }
|
|
if (overlay.opaque) {
|
|
st.splice(start, i - start, end, "overlay " + style);
|
|
i = start + 2;
|
|
} else {
|
|
for (; start < i; start += 2) {
|
|
var cur = st[start+1];
|
|
st[start+1] = (cur ? cur + " " : "") + "overlay " + style;
|
|
}
|
|
}
|
|
}, lineClasses);
|
|
context.state = state;
|
|
context.baseTokens = null;
|
|
context.baseTokenPos = 1;
|
|
};
|
|
|
|
for (var o = 0; o < cm.state.overlays.length; ++o) loop( o );
|
|
|
|
return {styles: st, classes: lineClasses.bgClass || lineClasses.textClass ? lineClasses : null}
|
|
}
|
|
|
|
function getLineStyles(cm, line, updateFrontier) {
|
|
if (!line.styles || line.styles[0] != cm.state.modeGen) {
|
|
var context = getContextBefore(cm, lineNo(line));
|
|
var resetState = line.text.length > cm.options.maxHighlightLength && copyState(cm.doc.mode, context.state);
|
|
var result = highlightLine(cm, line, context);
|
|
if (resetState) { context.state = resetState; }
|
|
line.stateAfter = context.save(!resetState);
|
|
line.styles = result.styles;
|
|
if (result.classes) { line.styleClasses = result.classes; }
|
|
else if (line.styleClasses) { line.styleClasses = null; }
|
|
if (updateFrontier === cm.doc.highlightFrontier)
|
|
{ cm.doc.modeFrontier = Math.max(cm.doc.modeFrontier, ++cm.doc.highlightFrontier); }
|
|
}
|
|
return line.styles
|
|
}
|
|
|
|
function getContextBefore(cm, n, precise) {
|
|
var doc = cm.doc, display = cm.display;
|
|
if (!doc.mode.startState) { return new Context(doc, true, n) }
|
|
var start = findStartLine(cm, n, precise);
|
|
var saved = start > doc.first && getLine(doc, start - 1).stateAfter;
|
|
var context = saved ? Context.fromSaved(doc, saved, start) : new Context(doc, startState(doc.mode), start);
|
|
|
|
doc.iter(start, n, function (line) {
|
|
processLine(cm, line.text, context);
|
|
var pos = context.line;
|
|
line.stateAfter = pos == n - 1 || pos % 5 == 0 || pos >= display.viewFrom && pos < display.viewTo ? context.save() : null;
|
|
context.nextLine();
|
|
});
|
|
if (precise) { doc.modeFrontier = context.line; }
|
|
return context
|
|
}
|
|
|
|
// Lightweight form of highlight -- proceed over this line and
|
|
// update state, but don't save a style array. Used for lines that
|
|
// aren't currently visible.
|
|
function processLine(cm, text, context, startAt) {
|
|
var mode = cm.doc.mode;
|
|
var stream = new StringStream(text, cm.options.tabSize, context);
|
|
stream.start = stream.pos = startAt || 0;
|
|
if (text == "") { callBlankLine(mode, context.state); }
|
|
while (!stream.eol()) {
|
|
readToken(mode, stream, context.state);
|
|
stream.start = stream.pos;
|
|
}
|
|
}
|
|
|
|
function callBlankLine(mode, state) {
|
|
if (mode.blankLine) { return mode.blankLine(state) }
|
|
if (!mode.innerMode) { return }
|
|
var inner = innerMode(mode, state);
|
|
if (inner.mode.blankLine) { return inner.mode.blankLine(inner.state) }
|
|
}
|
|
|
|
function readToken(mode, stream, state, inner) {
|
|
for (var i = 0; i < 10; i++) {
|
|
if (inner) { inner[0] = innerMode(mode, state).mode; }
|
|
var style = mode.token(stream, state);
|
|
if (stream.pos > stream.start) { return style }
|
|
}
|
|
throw new Error("Mode " + mode.name + " failed to advance stream.")
|
|
}
|
|
|
|
var Token = function(stream, type, state) {
|
|
this.start = stream.start; this.end = stream.pos;
|
|
this.string = stream.current();
|
|
this.type = type || null;
|
|
this.state = state;
|
|
};
|
|
|
|
// Utility for getTokenAt and getLineTokens
|
|
function takeToken(cm, pos, precise, asArray) {
|
|
var doc = cm.doc, mode = doc.mode, style;
|
|
pos = clipPos(doc, pos);
|
|
var line = getLine(doc, pos.line), context = getContextBefore(cm, pos.line, precise);
|
|
var stream = new StringStream(line.text, cm.options.tabSize, context), tokens;
|
|
if (asArray) { tokens = []; }
|
|
while ((asArray || stream.pos < pos.ch) && !stream.eol()) {
|
|
stream.start = stream.pos;
|
|
style = readToken(mode, stream, context.state);
|
|
if (asArray) { tokens.push(new Token(stream, style, copyState(doc.mode, context.state))); }
|
|
}
|
|
return asArray ? tokens : new Token(stream, style, context.state)
|
|
}
|
|
|
|
function extractLineClasses(type, output) {
|
|
if (type) { for (;;) {
|
|
var lineClass = type.match(/(?:^|\s+)line-(background-)?(\S+)/);
|
|
if (!lineClass) { break }
|
|
type = type.slice(0, lineClass.index) + type.slice(lineClass.index + lineClass[0].length);
|
|
var prop = lineClass[1] ? "bgClass" : "textClass";
|
|
if (output[prop] == null)
|
|
{ output[prop] = lineClass[2]; }
|
|
else if (!(new RegExp("(?:^|\\s)" + lineClass[2] + "(?:$|\\s)")).test(output[prop]))
|
|
{ output[prop] += " " + lineClass[2]; }
|
|
} }
|
|
return type
|
|
}
|
|
|
|
// Run the given mode's parser over a line, calling f for each token.
|
|
function runMode(cm, text, mode, context, f, lineClasses, forceToEnd) {
|
|
var flattenSpans = mode.flattenSpans;
|
|
if (flattenSpans == null) { flattenSpans = cm.options.flattenSpans; }
|
|
var curStart = 0, curStyle = null;
|
|
var stream = new StringStream(text, cm.options.tabSize, context), style;
|
|
var inner = cm.options.addModeClass && [null];
|
|
if (text == "") { extractLineClasses(callBlankLine(mode, context.state), lineClasses); }
|
|
while (!stream.eol()) {
|
|
if (stream.pos > cm.options.maxHighlightLength) {
|
|
flattenSpans = false;
|
|
if (forceToEnd) { processLine(cm, text, context, stream.pos); }
|
|
stream.pos = text.length;
|
|
style = null;
|
|
} else {
|
|
style = extractLineClasses(readToken(mode, stream, context.state, inner), lineClasses);
|
|
}
|
|
if (inner) {
|
|
var mName = inner[0].name;
|
|
if (mName) { style = "m-" + (style ? mName + " " + style : mName); }
|
|
}
|
|
if (!flattenSpans || curStyle != style) {
|
|
while (curStart < stream.start) {
|
|
curStart = Math.min(stream.start, curStart + 5000);
|
|
f(curStart, curStyle);
|
|
}
|
|
curStyle = style;
|
|
}
|
|
stream.start = stream.pos;
|
|
}
|
|
while (curStart < stream.pos) {
|
|
// Webkit seems to refuse to render text nodes longer than 57444
|
|
// characters, and returns inaccurate measurements in nodes
|
|
// starting around 5000 chars.
|
|
var pos = Math.min(stream.pos, curStart + 5000);
|
|
f(pos, curStyle);
|
|
curStart = pos;
|
|
}
|
|
}
|
|
|
|
// Finds the line to start with when starting a parse. Tries to
|
|
// find a line with a stateAfter, so that it can start with a
|
|
// valid state. If that fails, it returns the line with the
|
|
// smallest indentation, which tends to need the least context to
|
|
// parse correctly.
|
|
function findStartLine(cm, n, precise) {
|
|
var minindent, minline, doc = cm.doc;
|
|
var lim = precise ? -1 : n - (cm.doc.mode.innerMode ? 1000 : 100);
|
|
for (var search = n; search > lim; --search) {
|
|
if (search <= doc.first) { return doc.first }
|
|
var line = getLine(doc, search - 1), after = line.stateAfter;
|
|
if (after && (!precise || search + (after instanceof SavedContext ? after.lookAhead : 0) <= doc.modeFrontier))
|
|
{ return search }
|
|
var indented = countColumn(line.text, null, cm.options.tabSize);
|
|
if (minline == null || minindent > indented) {
|
|
minline = search - 1;
|
|
minindent = indented;
|
|
}
|
|
}
|
|
return minline
|
|
}
|
|
|
|
function retreatFrontier(doc, n) {
|
|
doc.modeFrontier = Math.min(doc.modeFrontier, n);
|
|
if (doc.highlightFrontier < n - 10) { return }
|
|
var start = doc.first;
|
|
for (var line = n - 1; line > start; line--) {
|
|
var saved = getLine(doc, line).stateAfter;
|
|
// change is on 3
|
|
// state on line 1 looked ahead 2 -- so saw 3
|
|
// test 1 + 2 < 3 should cover this
|
|
if (saved && (!(saved instanceof SavedContext) || line + saved.lookAhead < n)) {
|
|
start = line + 1;
|
|
break
|
|
}
|
|
}
|
|
doc.highlightFrontier = Math.min(doc.highlightFrontier, start);
|
|
}
|
|
|
|
// Optimize some code when these features are not used.
|
|
var sawReadOnlySpans = false, sawCollapsedSpans = false;
|
|
|
|
function seeReadOnlySpans() {
|
|
sawReadOnlySpans = true;
|
|
}
|
|
|
|
function seeCollapsedSpans() {
|
|
sawCollapsedSpans = true;
|
|
}
|
|
|
|
// TEXTMARKER SPANS
|
|
|
|
function MarkedSpan(marker, from, to) {
|
|
this.marker = marker;
|
|
this.from = from; this.to = to;
|
|
}
|
|
|
|
// Search an array of spans for a span matching the given marker.
|
|
function getMarkedSpanFor(spans, marker) {
|
|
if (spans) { for (var i = 0; i < spans.length; ++i) {
|
|
var span = spans[i];
|
|
if (span.marker == marker) { return span }
|
|
} }
|
|
}
|
|
|
|
// Remove a span from an array, returning undefined if no spans are
|
|
// left (we don't store arrays for lines without spans).
|
|
function removeMarkedSpan(spans, span) {
|
|
var r;
|
|
for (var i = 0; i < spans.length; ++i)
|
|
{ if (spans[i] != span) { (r || (r = [])).push(spans[i]); } }
|
|
return r
|
|
}
|
|
|
|
// Add a span to a line.
|
|
function addMarkedSpan(line, span, op) {
|
|
var inThisOp = op && window.WeakSet && (op.markedSpans || (op.markedSpans = new WeakSet));
|
|
if (inThisOp && inThisOp.has(line.markedSpans)) {
|
|
line.markedSpans.push(span);
|
|
} else {
|
|
line.markedSpans = line.markedSpans ? line.markedSpans.concat([span]) : [span];
|
|
if (inThisOp) { inThisOp.add(line.markedSpans); }
|
|
}
|
|
span.marker.attachLine(line);
|
|
}
|
|
|
|
// Used for the algorithm that adjusts markers for a change in the
|
|
// document. These functions cut an array of spans at a given
|
|
// character position, returning an array of remaining chunks (or
|
|
// undefined if nothing remains).
|
|
function markedSpansBefore(old, startCh, isInsert) {
|
|
var nw;
|
|
if (old) { for (var i = 0; i < old.length; ++i) {
|
|
var span = old[i], marker = span.marker;
|
|
var startsBefore = span.from == null || (marker.inclusiveLeft ? span.from <= startCh : span.from < startCh);
|
|
if (startsBefore || span.from == startCh && marker.type == "bookmark" && (!isInsert || !span.marker.insertLeft)) {
|
|
var endsAfter = span.to == null || (marker.inclusiveRight ? span.to >= startCh : span.to > startCh)
|
|
;(nw || (nw = [])).push(new MarkedSpan(marker, span.from, endsAfter ? null : span.to));
|
|
}
|
|
} }
|
|
return nw
|
|
}
|
|
function markedSpansAfter(old, endCh, isInsert) {
|
|
var nw;
|
|
if (old) { for (var i = 0; i < old.length; ++i) {
|
|
var span = old[i], marker = span.marker;
|
|
var endsAfter = span.to == null || (marker.inclusiveRight ? span.to >= endCh : span.to > endCh);
|
|
if (endsAfter || span.from == endCh && marker.type == "bookmark" && (!isInsert || span.marker.insertLeft)) {
|
|
var startsBefore = span.from == null || (marker.inclusiveLeft ? span.from <= endCh : span.from < endCh)
|
|
;(nw || (nw = [])).push(new MarkedSpan(marker, startsBefore ? null : span.from - endCh,
|
|
span.to == null ? null : span.to - endCh));
|
|
}
|
|
} }
|
|
return nw
|
|
}
|
|
|
|
// Given a change object, compute the new set of marker spans that
|
|
// cover the line in which the change took place. Removes spans
|
|
// entirely within the change, reconnects spans belonging to the
|
|
// same marker that appear on both sides of the change, and cuts off
|
|
// spans partially within the change. Returns an array of span
|
|
// arrays with one element for each line in (after) the change.
|
|
function stretchSpansOverChange(doc, change) {
|
|
if (change.full) { return null }
|
|
var oldFirst = isLine(doc, change.from.line) && getLine(doc, change.from.line).markedSpans;
|
|
var oldLast = isLine(doc, change.to.line) && getLine(doc, change.to.line).markedSpans;
|
|
if (!oldFirst && !oldLast) { return null }
|
|
|
|
var startCh = change.from.ch, endCh = change.to.ch, isInsert = cmp(change.from, change.to) == 0;
|
|
// Get the spans that 'stick out' on both sides
|
|
var first = markedSpansBefore(oldFirst, startCh, isInsert);
|
|
var last = markedSpansAfter(oldLast, endCh, isInsert);
|
|
|
|
// Next, merge those two ends
|
|
var sameLine = change.text.length == 1, offset = lst(change.text).length + (sameLine ? startCh : 0);
|
|
if (first) {
|
|
// Fix up .to properties of first
|
|
for (var i = 0; i < first.length; ++i) {
|
|
var span = first[i];
|
|
if (span.to == null) {
|
|
var found = getMarkedSpanFor(last, span.marker);
|
|
if (!found) { span.to = startCh; }
|
|
else if (sameLine) { span.to = found.to == null ? null : found.to + offset; }
|
|
}
|
|
}
|
|
}
|
|
if (last) {
|
|
// Fix up .from in last (or move them into first in case of sameLine)
|
|
for (var i$1 = 0; i$1 < last.length; ++i$1) {
|
|
var span$1 = last[i$1];
|
|
if (span$1.to != null) { span$1.to += offset; }
|
|
if (span$1.from == null) {
|
|
var found$1 = getMarkedSpanFor(first, span$1.marker);
|
|
if (!found$1) {
|
|
span$1.from = offset;
|
|
if (sameLine) { (first || (first = [])).push(span$1); }
|
|
}
|
|
} else {
|
|
span$1.from += offset;
|
|
if (sameLine) { (first || (first = [])).push(span$1); }
|
|
}
|
|
}
|
|
}
|
|
// Make sure we didn't create any zero-length spans
|
|
if (first) { first = clearEmptySpans(first); }
|
|
if (last && last != first) { last = clearEmptySpans(last); }
|
|
|
|
var newMarkers = [first];
|
|
if (!sameLine) {
|
|
// Fill gap with whole-line-spans
|
|
var gap = change.text.length - 2, gapMarkers;
|
|
if (gap > 0 && first)
|
|
{ for (var i$2 = 0; i$2 < first.length; ++i$2)
|
|
{ if (first[i$2].to == null)
|
|
{ (gapMarkers || (gapMarkers = [])).push(new MarkedSpan(first[i$2].marker, null, null)); } } }
|
|
for (var i$3 = 0; i$3 < gap; ++i$3)
|
|
{ newMarkers.push(gapMarkers); }
|
|
newMarkers.push(last);
|
|
}
|
|
return newMarkers
|
|
}
|
|
|
|
// Remove spans that are empty and don't have a clearWhenEmpty
|
|
// option of false.
|
|
function clearEmptySpans(spans) {
|
|
for (var i = 0; i < spans.length; ++i) {
|
|
var span = spans[i];
|
|
if (span.from != null && span.from == span.to && span.marker.clearWhenEmpty !== false)
|
|
{ spans.splice(i--, 1); }
|
|
}
|
|
if (!spans.length) { return null }
|
|
return spans
|
|
}
|
|
|
|
// Used to 'clip' out readOnly ranges when making a change.
|
|
function removeReadOnlyRanges(doc, from, to) {
|
|
var markers = null;
|
|
doc.iter(from.line, to.line + 1, function (line) {
|
|
if (line.markedSpans) { for (var i = 0; i < line.markedSpans.length; ++i) {
|
|
var mark = line.markedSpans[i].marker;
|
|
if (mark.readOnly && (!markers || indexOf(markers, mark) == -1))
|
|
{ (markers || (markers = [])).push(mark); }
|
|
} }
|
|
});
|
|
if (!markers) { return null }
|
|
var parts = [{from: from, to: to}];
|
|
for (var i = 0; i < markers.length; ++i) {
|
|
var mk = markers[i], m = mk.find(0);
|
|
for (var j = 0; j < parts.length; ++j) {
|
|
var p = parts[j];
|
|
if (cmp(p.to, m.from) < 0 || cmp(p.from, m.to) > 0) { continue }
|
|
var newParts = [j, 1], dfrom = cmp(p.from, m.from), dto = cmp(p.to, m.to);
|
|
if (dfrom < 0 || !mk.inclusiveLeft && !dfrom)
|
|
{ newParts.push({from: p.from, to: m.from}); }
|
|
if (dto > 0 || !mk.inclusiveRight && !dto)
|
|
{ newParts.push({from: m.to, to: p.to}); }
|
|
parts.splice.apply(parts, newParts);
|
|
j += newParts.length - 3;
|
|
}
|
|
}
|
|
return parts
|
|
}
|
|
|
|
// Connect or disconnect spans from a line.
|
|
function detachMarkedSpans(line) {
|
|
var spans = line.markedSpans;
|
|
if (!spans) { return }
|
|
for (var i = 0; i < spans.length; ++i)
|
|
{ spans[i].marker.detachLine(line); }
|
|
line.markedSpans = null;
|
|
}
|
|
function attachMarkedSpans(line, spans) {
|
|
if (!spans) { return }
|
|
for (var i = 0; i < spans.length; ++i)
|
|
{ spans[i].marker.attachLine(line); }
|
|
line.markedSpans = spans;
|
|
}
|
|
|
|
// Helpers used when computing which overlapping collapsed span
|
|
// counts as the larger one.
|
|
function extraLeft(marker) { return marker.inclusiveLeft ? -1 : 0 }
|
|
function extraRight(marker) { return marker.inclusiveRight ? 1 : 0 }
|
|
|
|
// Returns a number indicating which of two overlapping collapsed
|
|
// spans is larger (and thus includes the other). Falls back to
|
|
// comparing ids when the spans cover exactly the same range.
|
|
function compareCollapsedMarkers(a, b) {
|
|
var lenDiff = a.lines.length - b.lines.length;
|
|
if (lenDiff != 0) { return lenDiff }
|
|
var aPos = a.find(), bPos = b.find();
|
|
var fromCmp = cmp(aPos.from, bPos.from) || extraLeft(a) - extraLeft(b);
|
|
if (fromCmp) { return -fromCmp }
|
|
var toCmp = cmp(aPos.to, bPos.to) || extraRight(a) - extraRight(b);
|
|
if (toCmp) { return toCmp }
|
|
return b.id - a.id
|
|
}
|
|
|
|
// Find out whether a line ends or starts in a collapsed span. If
|
|
// so, return the marker for that span.
|
|
function collapsedSpanAtSide(line, start) {
|
|
var sps = sawCollapsedSpans && line.markedSpans, found;
|
|
if (sps) { for (var sp = (void 0), i = 0; i < sps.length; ++i) {
|
|
sp = sps[i];
|
|
if (sp.marker.collapsed && (start ? sp.from : sp.to) == null &&
|
|
(!found || compareCollapsedMarkers(found, sp.marker) < 0))
|
|
{ found = sp.marker; }
|
|
} }
|
|
return found
|
|
}
|
|
function collapsedSpanAtStart(line) { return collapsedSpanAtSide(line, true) }
|
|
function collapsedSpanAtEnd(line) { return collapsedSpanAtSide(line, false) }
|
|
|
|
function collapsedSpanAround(line, ch) {
|
|
var sps = sawCollapsedSpans && line.markedSpans, found;
|
|
if (sps) { for (var i = 0; i < sps.length; ++i) {
|
|
var sp = sps[i];
|
|
if (sp.marker.collapsed && (sp.from == null || sp.from < ch) && (sp.to == null || sp.to > ch) &&
|
|
(!found || compareCollapsedMarkers(found, sp.marker) < 0)) { found = sp.marker; }
|
|
} }
|
|
return found
|
|
}
|
|
|
|
// Test whether there exists a collapsed span that partially
|
|
// overlaps (covers the start or end, but not both) of a new span.
|
|
// Such overlap is not allowed.
|
|
function conflictingCollapsedRange(doc, lineNo, from, to, marker) {
|
|
var line = getLine(doc, lineNo);
|
|
var sps = sawCollapsedSpans && line.markedSpans;
|
|
if (sps) { for (var i = 0; i < sps.length; ++i) {
|
|
var sp = sps[i];
|
|
if (!sp.marker.collapsed) { continue }
|
|
var found = sp.marker.find(0);
|
|
var fromCmp = cmp(found.from, from) || extraLeft(sp.marker) - extraLeft(marker);
|
|
var toCmp = cmp(found.to, to) || extraRight(sp.marker) - extraRight(marker);
|
|
if (fromCmp >= 0 && toCmp <= 0 || fromCmp <= 0 && toCmp >= 0) { continue }
|
|
if (fromCmp <= 0 && (sp.marker.inclusiveRight && marker.inclusiveLeft ? cmp(found.to, from) >= 0 : cmp(found.to, from) > 0) ||
|
|
fromCmp >= 0 && (sp.marker.inclusiveRight && marker.inclusiveLeft ? cmp(found.from, to) <= 0 : cmp(found.from, to) < 0))
|
|
{ return true }
|
|
} }
|
|
}
|
|
|
|
// A visual line is a line as drawn on the screen. Folding, for
|
|
// example, can cause multiple logical lines to appear on the same
|
|
// visual line. This finds the start of the visual line that the
|
|
// given line is part of (usually that is the line itself).
|
|
function visualLine(line) {
|
|
var merged;
|
|
while (merged = collapsedSpanAtStart(line))
|
|
{ line = merged.find(-1, true).line; }
|
|
return line
|
|
}
|
|
|
|
function visualLineEnd(line) {
|
|
var merged;
|
|
while (merged = collapsedSpanAtEnd(line))
|
|
{ line = merged.find(1, true).line; }
|
|
return line
|
|
}
|
|
|
|
// Returns an array of logical lines that continue the visual line
|
|
// started by the argument, or undefined if there are no such lines.
|
|
function visualLineContinued(line) {
|
|
var merged, lines;
|
|
while (merged = collapsedSpanAtEnd(line)) {
|
|
line = merged.find(1, true).line
|
|
;(lines || (lines = [])).push(line);
|
|
}
|
|
return lines
|
|
}
|
|
|
|
// Get the line number of the start of the visual line that the
|
|
// given line number is part of.
|
|
function visualLineNo(doc, lineN) {
|
|
var line = getLine(doc, lineN), vis = visualLine(line);
|
|
if (line == vis) { return lineN }
|
|
return lineNo(vis)
|
|
}
|
|
|
|
// Get the line number of the start of the next visual line after
|
|
// the given line.
|
|
function visualLineEndNo(doc, lineN) {
|
|
if (lineN > doc.lastLine()) { return lineN }
|
|
var line = getLine(doc, lineN), merged;
|
|
if (!lineIsHidden(doc, line)) { return lineN }
|
|
while (merged = collapsedSpanAtEnd(line))
|
|
{ line = merged.find(1, true).line; }
|
|
return lineNo(line) + 1
|
|
}
|
|
|
|
// Compute whether a line is hidden. Lines count as hidden when they
|
|
// are part of a visual line that starts with another line, or when
|
|
// they are entirely covered by collapsed, non-widget span.
|
|
function lineIsHidden(doc, line) {
|
|
var sps = sawCollapsedSpans && line.markedSpans;
|
|
if (sps) { for (var sp = (void 0), i = 0; i < sps.length; ++i) {
|
|
sp = sps[i];
|
|
if (!sp.marker.collapsed) { continue }
|
|
if (sp.from == null) { return true }
|
|
if (sp.marker.widgetNode) { continue }
|
|
if (sp.from == 0 && sp.marker.inclusiveLeft && lineIsHiddenInner(doc, line, sp))
|
|
{ return true }
|
|
} }
|
|
}
|
|
function lineIsHiddenInner(doc, line, span) {
|
|
if (span.to == null) {
|
|
var end = span.marker.find(1, true);
|
|
return lineIsHiddenInner(doc, end.line, getMarkedSpanFor(end.line.markedSpans, span.marker))
|
|
}
|
|
if (span.marker.inclusiveRight && span.to == line.text.length)
|
|
{ return true }
|
|
for (var sp = (void 0), i = 0; i < line.markedSpans.length; ++i) {
|
|
sp = line.markedSpans[i];
|
|
if (sp.marker.collapsed && !sp.marker.widgetNode && sp.from == span.to &&
|
|
(sp.to == null || sp.to != span.from) &&
|
|
(sp.marker.inclusiveLeft || span.marker.inclusiveRight) &&
|
|
lineIsHiddenInner(doc, line, sp)) { return true }
|
|
}
|
|
}
|
|
|
|
// Find the height above the given line.
|
|
function heightAtLine(lineObj) {
|
|
lineObj = visualLine(lineObj);
|
|
|
|
var h = 0, chunk = lineObj.parent;
|
|
for (var i = 0; i < chunk.lines.length; ++i) {
|
|
var line = chunk.lines[i];
|
|
if (line == lineObj) { break }
|
|
else { h += line.height; }
|
|
}
|
|
for (var p = chunk.parent; p; chunk = p, p = chunk.parent) {
|
|
for (var i$1 = 0; i$1 < p.children.length; ++i$1) {
|
|
var cur = p.children[i$1];
|
|
if (cur == chunk) { break }
|
|
else { h += cur.height; }
|
|
}
|
|
}
|
|
return h
|
|
}
|
|
|
|
// Compute the character length of a line, taking into account
|
|
// collapsed ranges (see markText) that might hide parts, and join
|
|
// other lines onto it.
|
|
function lineLength(line) {
|
|
if (line.height == 0) { return 0 }
|
|
var len = line.text.length, merged, cur = line;
|
|
while (merged = collapsedSpanAtStart(cur)) {
|
|
var found = merged.find(0, true);
|
|
cur = found.from.line;
|
|
len += found.from.ch - found.to.ch;
|
|
}
|
|
cur = line;
|
|
while (merged = collapsedSpanAtEnd(cur)) {
|
|
var found$1 = merged.find(0, true);
|
|
len -= cur.text.length - found$1.from.ch;
|
|
cur = found$1.to.line;
|
|
len += cur.text.length - found$1.to.ch;
|
|
}
|
|
return len
|
|
}
|
|
|
|
// Find the longest line in the document.
|
|
function findMaxLine(cm) {
|
|
var d = cm.display, doc = cm.doc;
|
|
d.maxLine = getLine(doc, doc.first);
|
|
d.maxLineLength = lineLength(d.maxLine);
|
|
d.maxLineChanged = true;
|
|
doc.iter(function (line) {
|
|
var len = lineLength(line);
|
|
if (len > d.maxLineLength) {
|
|
d.maxLineLength = len;
|
|
d.maxLine = line;
|
|
}
|
|
});
|
|
}
|
|
|
|
// LINE DATA STRUCTURE
|
|
|
|
// Line objects. These hold state related to a line, including
|
|
// highlighting info (the styles array).
|
|
var Line = function(text, markedSpans, estimateHeight) {
|
|
this.text = text;
|
|
attachMarkedSpans(this, markedSpans);
|
|
this.height = estimateHeight ? estimateHeight(this) : 1;
|
|
};
|
|
|
|
Line.prototype.lineNo = function () { return lineNo(this) };
|
|
eventMixin(Line);
|
|
|
|
// Change the content (text, markers) of a line. Automatically
|
|
// invalidates cached information and tries to re-estimate the
|
|
// line's height.
|
|
function updateLine(line, text, markedSpans, estimateHeight) {
|
|
line.text = text;
|
|
if (line.stateAfter) { line.stateAfter = null; }
|
|
if (line.styles) { line.styles = null; }
|
|
if (line.order != null) { line.order = null; }
|
|
detachMarkedSpans(line);
|
|
attachMarkedSpans(line, markedSpans);
|
|
var estHeight = estimateHeight ? estimateHeight(line) : 1;
|
|
if (estHeight != line.height) { updateLineHeight(line, estHeight); }
|
|
}
|
|
|
|
// Detach a line from the document tree and its markers.
|
|
function cleanUpLine(line) {
|
|
line.parent = null;
|
|
detachMarkedSpans(line);
|
|
}
|
|
|
|
// Convert a style as returned by a mode (either null, or a string
|
|
// containing one or more styles) to a CSS style. This is cached,
|
|
// and also looks for line-wide styles.
|
|
var styleToClassCache = {}, styleToClassCacheWithMode = {};
|
|
function interpretTokenStyle(style, options) {
|
|
if (!style || /^\s*$/.test(style)) { return null }
|
|
var cache = options.addModeClass ? styleToClassCacheWithMode : styleToClassCache;
|
|
return cache[style] ||
|
|
(cache[style] = style.replace(/\S+/g, "cm-$&"))
|
|
}
|
|
|
|
// Render the DOM representation of the text of a line. Also builds
|
|
// up a 'line map', which points at the DOM nodes that represent
|
|
// specific stretches of text, and is used by the measuring code.
|
|
// The returned object contains the DOM node, this map, and
|
|
// information about line-wide styles that were set by the mode.
|
|
function buildLineContent(cm, lineView) {
|
|
// The padding-right forces the element to have a 'border', which
|
|
// is needed on Webkit to be able to get line-level bounding
|
|
// rectangles for it (in measureChar).
|
|
var content = eltP("span", null, null, webkit ? "padding-right: .1px" : null);
|
|
var builder = {pre: eltP("pre", [content], "CodeMirror-line"), content: content,
|
|
col: 0, pos: 0, cm: cm,
|
|
trailingSpace: false,
|
|
splitSpaces: cm.getOption("lineWrapping")};
|
|
lineView.measure = {};
|
|
|
|
// Iterate over the logical lines that make up this visual line.
|
|
for (var i = 0; i <= (lineView.rest ? lineView.rest.length : 0); i++) {
|
|
var line = i ? lineView.rest[i - 1] : lineView.line, order = (void 0);
|
|
builder.pos = 0;
|
|
builder.addToken = buildToken;
|
|
// Optionally wire in some hacks into the token-rendering
|
|
// algorithm, to deal with browser quirks.
|
|
if (hasBadBidiRects(cm.display.measure) && (order = getOrder(line, cm.doc.direction)))
|
|
{ builder.addToken = buildTokenBadBidi(builder.addToken, order); }
|
|
builder.map = [];
|
|
var allowFrontierUpdate = lineView != cm.display.externalMeasured && lineNo(line);
|
|
insertLineContent(line, builder, getLineStyles(cm, line, allowFrontierUpdate));
|
|
if (line.styleClasses) {
|
|
if (line.styleClasses.bgClass)
|
|
{ builder.bgClass = joinClasses(line.styleClasses.bgClass, builder.bgClass || ""); }
|
|
if (line.styleClasses.textClass)
|
|
{ builder.textClass = joinClasses(line.styleClasses.textClass, builder.textClass || ""); }
|
|
}
|
|
|
|
// Ensure at least a single node is present, for measuring.
|
|
if (builder.map.length == 0)
|
|
{ builder.map.push(0, 0, builder.content.appendChild(zeroWidthElement(cm.display.measure))); }
|
|
|
|
// Store the map and a cache object for the current logical line
|
|
if (i == 0) {
|
|
lineView.measure.map = builder.map;
|
|
lineView.measure.cache = {};
|
|
} else {
|
|
(lineView.measure.maps || (lineView.measure.maps = [])).push(builder.map)
|
|
;(lineView.measure.caches || (lineView.measure.caches = [])).push({});
|
|
}
|
|
}
|
|
|
|
// See issue #2901
|
|
if (webkit) {
|
|
var last = builder.content.lastChild;
|
|
if (/\bcm-tab\b/.test(last.className) || (last.querySelector && last.querySelector(".cm-tab")))
|
|
{ builder.content.className = "cm-tab-wrap-hack"; }
|
|
}
|
|
|
|
signal(cm, "renderLine", cm, lineView.line, builder.pre);
|
|
if (builder.pre.className)
|
|
{ builder.textClass = joinClasses(builder.pre.className, builder.textClass || ""); }
|
|
|
|
return builder
|
|
}
|
|
|
|
function defaultSpecialCharPlaceholder(ch) {
|
|
var token = elt("span", "\u2022", "cm-invalidchar");
|
|
token.title = "\\u" + ch.charCodeAt(0).toString(16);
|
|
token.setAttribute("aria-label", token.title);
|
|
return token
|
|
}
|
|
|
|
// Build up the DOM representation for a single token, and add it to
|
|
// the line map. Takes care to render special characters separately.
|
|
function buildToken(builder, text, style, startStyle, endStyle, css, attributes) {
|
|
if (!text) { return }
|
|
var displayText = builder.splitSpaces ? splitSpaces(text, builder.trailingSpace) : text;
|
|
var special = builder.cm.state.specialChars, mustWrap = false;
|
|
var content;
|
|
if (!special.test(text)) {
|
|
builder.col += text.length;
|
|
content = document.createTextNode(displayText);
|
|
builder.map.push(builder.pos, builder.pos + text.length, content);
|
|
if (ie && ie_version < 9) { mustWrap = true; }
|
|
builder.pos += text.length;
|
|
} else {
|
|
content = document.createDocumentFragment();
|
|
var pos = 0;
|
|
while (true) {
|
|
special.lastIndex = pos;
|
|
var m = special.exec(text);
|
|
var skipped = m ? m.index - pos : text.length - pos;
|
|
if (skipped) {
|
|
var txt = document.createTextNode(displayText.slice(pos, pos + skipped));
|
|
if (ie && ie_version < 9) { content.appendChild(elt("span", [txt])); }
|
|
else { content.appendChild(txt); }
|
|
builder.map.push(builder.pos, builder.pos + skipped, txt);
|
|
builder.col += skipped;
|
|
builder.pos += skipped;
|
|
}
|
|
if (!m) { break }
|
|
pos += skipped + 1;
|
|
var txt$1 = (void 0);
|
|
if (m[0] == "\t") {
|
|
var tabSize = builder.cm.options.tabSize, tabWidth = tabSize - builder.col % tabSize;
|
|
txt$1 = content.appendChild(elt("span", spaceStr(tabWidth), "cm-tab"));
|
|
txt$1.setAttribute("role", "presentation");
|
|
txt$1.setAttribute("cm-text", "\t");
|
|
builder.col += tabWidth;
|
|
} else if (m[0] == "\r" || m[0] == "\n") {
|
|
txt$1 = content.appendChild(elt("span", m[0] == "\r" ? "\u240d" : "\u2424", "cm-invalidchar"));
|
|
txt$1.setAttribute("cm-text", m[0]);
|
|
builder.col += 1;
|
|
} else {
|
|
txt$1 = builder.cm.options.specialCharPlaceholder(m[0]);
|
|
txt$1.setAttribute("cm-text", m[0]);
|
|
if (ie && ie_version < 9) { content.appendChild(elt("span", [txt$1])); }
|
|
else { content.appendChild(txt$1); }
|
|
builder.col += 1;
|
|
}
|
|
builder.map.push(builder.pos, builder.pos + 1, txt$1);
|
|
builder.pos++;
|
|
}
|
|
}
|
|
builder.trailingSpace = displayText.charCodeAt(text.length - 1) == 32;
|
|
if (style || startStyle || endStyle || mustWrap || css || attributes) {
|
|
var fullStyle = style || "";
|
|
if (startStyle) { fullStyle += startStyle; }
|
|
if (endStyle) { fullStyle += endStyle; }
|
|
var token = elt("span", [content], fullStyle, css);
|
|
if (attributes) {
|
|
for (var attr in attributes) { if (attributes.hasOwnProperty(attr) && attr != "style" && attr != "class")
|
|
{ token.setAttribute(attr, attributes[attr]); } }
|
|
}
|
|
return builder.content.appendChild(token)
|
|
}
|
|
builder.content.appendChild(content);
|
|
}
|
|
|
|
// Change some spaces to NBSP to prevent the browser from collapsing
|
|
// trailing spaces at the end of a line when rendering text (issue #1362).
|
|
function splitSpaces(text, trailingBefore) {
|
|
if (text.length > 1 && !/ /.test(text)) { return text }
|
|
var spaceBefore = trailingBefore, result = "";
|
|
for (var i = 0; i < text.length; i++) {
|
|
var ch = text.charAt(i);
|
|
if (ch == " " && spaceBefore && (i == text.length - 1 || text.charCodeAt(i + 1) == 32))
|
|
{ ch = "\u00a0"; }
|
|
result += ch;
|
|
spaceBefore = ch == " ";
|
|
}
|
|
return result
|
|
}
|
|
|
|
// Work around nonsense dimensions being reported for stretches of
|
|
// right-to-left text.
|
|
function buildTokenBadBidi(inner, order) {
|
|
return function (builder, text, style, startStyle, endStyle, css, attributes) {
|
|
style = style ? style + " cm-force-border" : "cm-force-border";
|
|
var start = builder.pos, end = start + text.length;
|
|
for (;;) {
|
|
// Find the part that overlaps with the start of this text
|
|
var part = (void 0);
|
|
for (var i = 0; i < order.length; i++) {
|
|
part = order[i];
|
|
if (part.to > start && part.from <= start) { break }
|
|
}
|
|
if (part.to >= end) { return inner(builder, text, style, startStyle, endStyle, css, attributes) }
|
|
inner(builder, text.slice(0, part.to - start), style, startStyle, null, css, attributes);
|
|
startStyle = null;
|
|
text = text.slice(part.to - start);
|
|
start = part.to;
|
|
}
|
|
}
|
|
}
|
|
|
|
function buildCollapsedSpan(builder, size, marker, ignoreWidget) {
|
|
var widget = !ignoreWidget && marker.widgetNode;
|
|
if (widget) { builder.map.push(builder.pos, builder.pos + size, widget); }
|
|
if (!ignoreWidget && builder.cm.display.input.needsContentAttribute) {
|
|
if (!widget)
|
|
{ widget = builder.content.appendChild(document.createElement("span")); }
|
|
widget.setAttribute("cm-marker", marker.id);
|
|
}
|
|
if (widget) {
|
|
builder.cm.display.input.setUneditable(widget);
|
|
builder.content.appendChild(widget);
|
|
}
|
|
builder.pos += size;
|
|
builder.trailingSpace = false;
|
|
}
|
|
|
|
// Outputs a number of spans to make up a line, taking highlighting
|
|
// and marked text into account.
|
|
function insertLineContent(line, builder, styles) {
|
|
var spans = line.markedSpans, allText = line.text, at = 0;
|
|
if (!spans) {
|
|
for (var i$1 = 1; i$1 < styles.length; i$1+=2)
|
|
{ builder.addToken(builder, allText.slice(at, at = styles[i$1]), interpretTokenStyle(styles[i$1+1], builder.cm.options)); }
|
|
return
|
|
}
|
|
|
|
var len = allText.length, pos = 0, i = 1, text = "", style, css;
|
|
var nextChange = 0, spanStyle, spanEndStyle, spanStartStyle, collapsed, attributes;
|
|
for (;;) {
|
|
if (nextChange == pos) { // Update current marker set
|
|
spanStyle = spanEndStyle = spanStartStyle = css = "";
|
|
attributes = null;
|
|
collapsed = null; nextChange = Infinity;
|
|
var foundBookmarks = [], endStyles = (void 0);
|
|
for (var j = 0; j < spans.length; ++j) {
|
|
var sp = spans[j], m = sp.marker;
|
|
if (m.type == "bookmark" && sp.from == pos && m.widgetNode) {
|
|
foundBookmarks.push(m);
|
|
} else if (sp.from <= pos && (sp.to == null || sp.to > pos || m.collapsed && sp.to == pos && sp.from == pos)) {
|
|
if (sp.to != null && sp.to != pos && nextChange > sp.to) {
|
|
nextChange = sp.to;
|
|
spanEndStyle = "";
|
|
}
|
|
if (m.className) { spanStyle += " " + m.className; }
|
|
if (m.css) { css = (css ? css + ";" : "") + m.css; }
|
|
if (m.startStyle && sp.from == pos) { spanStartStyle += " " + m.startStyle; }
|
|
if (m.endStyle && sp.to == nextChange) { (endStyles || (endStyles = [])).push(m.endStyle, sp.to); }
|
|
// support for the old title property
|
|
// https://github.com/codemirror/CodeMirror/pull/5673
|
|
if (m.title) { (attributes || (attributes = {})).title = m.title; }
|
|
if (m.attributes) {
|
|
for (var attr in m.attributes)
|
|
{ (attributes || (attributes = {}))[attr] = m.attributes[attr]; }
|
|
}
|
|
if (m.collapsed && (!collapsed || compareCollapsedMarkers(collapsed.marker, m) < 0))
|
|
{ collapsed = sp; }
|
|
} else if (sp.from > pos && nextChange > sp.from) {
|
|
nextChange = sp.from;
|
|
}
|
|
}
|
|
if (endStyles) { for (var j$1 = 0; j$1 < endStyles.length; j$1 += 2)
|
|
{ if (endStyles[j$1 + 1] == nextChange) { spanEndStyle += " " + endStyles[j$1]; } } }
|
|
|
|
if (!collapsed || collapsed.from == pos) { for (var j$2 = 0; j$2 < foundBookmarks.length; ++j$2)
|
|
{ buildCollapsedSpan(builder, 0, foundBookmarks[j$2]); } }
|
|
if (collapsed && (collapsed.from || 0) == pos) {
|
|
buildCollapsedSpan(builder, (collapsed.to == null ? len + 1 : collapsed.to) - pos,
|
|
collapsed.marker, collapsed.from == null);
|
|
if (collapsed.to == null) { return }
|
|
if (collapsed.to == pos) { collapsed = false; }
|
|
}
|
|
}
|
|
if (pos >= len) { break }
|
|
|
|
var upto = Math.min(len, nextChange);
|
|
while (true) {
|
|
if (text) {
|
|
var end = pos + text.length;
|
|
if (!collapsed) {
|
|
var tokenText = end > upto ? text.slice(0, upto - pos) : text;
|
|
builder.addToken(builder, tokenText, style ? style + spanStyle : spanStyle,
|
|
spanStartStyle, pos + tokenText.length == nextChange ? spanEndStyle : "", css, attributes);
|
|
}
|
|
if (end >= upto) {text = text.slice(upto - pos); pos = upto; break}
|
|
pos = end;
|
|
spanStartStyle = "";
|
|
}
|
|
text = allText.slice(at, at = styles[i++]);
|
|
style = interpretTokenStyle(styles[i++], builder.cm.options);
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
// These objects are used to represent the visible (currently drawn)
|
|
// part of the document. A LineView may correspond to multiple
|
|
// logical lines, if those are connected by collapsed ranges.
|
|
function LineView(doc, line, lineN) {
|
|
// The starting line
|
|
this.line = line;
|
|
// Continuing lines, if any
|
|
this.rest = visualLineContinued(line);
|
|
// Number of logical lines in this visual line
|
|
this.size = this.rest ? lineNo(lst(this.rest)) - lineN + 1 : 1;
|
|
this.node = this.text = null;
|
|
this.hidden = lineIsHidden(doc, line);
|
|
}
|
|
|
|
// Create a range of LineView objects for the given lines.
|
|
function buildViewArray(cm, from, to) {
|
|
var array = [], nextPos;
|
|
for (var pos = from; pos < to; pos = nextPos) {
|
|
var view = new LineView(cm.doc, getLine(cm.doc, pos), pos);
|
|
nextPos = pos + view.size;
|
|
array.push(view);
|
|
}
|
|
return array
|
|
}
|
|
|
|
var operationGroup = null;
|
|
|
|
function pushOperation(op) {
|
|
if (operationGroup) {
|
|
operationGroup.ops.push(op);
|
|
} else {
|
|
op.ownsGroup = operationGroup = {
|
|
ops: [op],
|
|
delayedCallbacks: []
|
|
};
|
|
}
|
|
}
|
|
|
|
function fireCallbacksForOps(group) {
|
|
// Calls delayed callbacks and cursorActivity handlers until no
|
|
// new ones appear
|
|
var callbacks = group.delayedCallbacks, i = 0;
|
|
do {
|
|
for (; i < callbacks.length; i++)
|
|
{ callbacks[i].call(null); }
|
|
for (var j = 0; j < group.ops.length; j++) {
|
|
var op = group.ops[j];
|
|
if (op.cursorActivityHandlers)
|
|
{ while (op.cursorActivityCalled < op.cursorActivityHandlers.length)
|
|
{ op.cursorActivityHandlers[op.cursorActivityCalled++].call(null, op.cm); } }
|
|
}
|
|
} while (i < callbacks.length)
|
|
}
|
|
|
|
function finishOperation(op, endCb) {
|
|
var group = op.ownsGroup;
|
|
if (!group) { return }
|
|
|
|
try { fireCallbacksForOps(group); }
|
|
finally {
|
|
operationGroup = null;
|
|
endCb(group);
|
|
}
|
|
}
|
|
|
|
var orphanDelayedCallbacks = null;
|
|
|
|
// Often, we want to signal events at a point where we are in the
|
|
// middle of some work, but don't want the handler to start calling
|
|
// other methods on the editor, which might be in an inconsistent
|
|
// state or simply not expect any other events to happen.
|
|
// signalLater looks whether there are any handlers, and schedules
|
|
// them to be executed when the last operation ends, or, if no
|
|
// operation is active, when a timeout fires.
|
|
function signalLater(emitter, type /*, values...*/) {
|
|
var arr = getHandlers(emitter, type);
|
|
if (!arr.length) { return }
|
|
var args = Array.prototype.slice.call(arguments, 2), list;
|
|
if (operationGroup) {
|
|
list = operationGroup.delayedCallbacks;
|
|
} else if (orphanDelayedCallbacks) {
|
|
list = orphanDelayedCallbacks;
|
|
} else {
|
|
list = orphanDelayedCallbacks = [];
|
|
setTimeout(fireOrphanDelayed, 0);
|
|
}
|
|
var loop = function ( i ) {
|
|
list.push(function () { return arr[i].apply(null, args); });
|
|
};
|
|
|
|
for (var i = 0; i < arr.length; ++i)
|
|
loop( i );
|
|
}
|
|
|
|
function fireOrphanDelayed() {
|
|
var delayed = orphanDelayedCallbacks;
|
|
orphanDelayedCallbacks = null;
|
|
for (var i = 0; i < delayed.length; ++i) { delayed[i](); }
|
|
}
|
|
|
|
// When an aspect of a line changes, a string is added to
|
|
// lineView.changes. This updates the relevant part of the line's
|
|
// DOM structure.
|
|
function updateLineForChanges(cm, lineView, lineN, dims) {
|
|
for (var j = 0; j < lineView.changes.length; j++) {
|
|
var type = lineView.changes[j];
|
|
if (type == "text") { updateLineText(cm, lineView); }
|
|
else if (type == "gutter") { updateLineGutter(cm, lineView, lineN, dims); }
|
|
else if (type == "class") { updateLineClasses(cm, lineView); }
|
|
else if (type == "widget") { updateLineWidgets(cm, lineView, dims); }
|
|
}
|
|
lineView.changes = null;
|
|
}
|
|
|
|
// Lines with gutter elements, widgets or a background class need to
|
|
// be wrapped, and have the extra elements added to the wrapper div
|
|
function ensureLineWrapped(lineView) {
|
|
if (lineView.node == lineView.text) {
|
|
lineView.node = elt("div", null, null, "position: relative");
|
|
if (lineView.text.parentNode)
|
|
{ lineView.text.parentNode.replaceChild(lineView.node, lineView.text); }
|
|
lineView.node.appendChild(lineView.text);
|
|
if (ie && ie_version < 8) { lineView.node.style.zIndex = 2; }
|
|
}
|
|
return lineView.node
|
|
}
|
|
|
|
function updateLineBackground(cm, lineView) {
|
|
var cls = lineView.bgClass ? lineView.bgClass + " " + (lineView.line.bgClass || "") : lineView.line.bgClass;
|
|
if (cls) { cls += " CodeMirror-linebackground"; }
|
|
if (lineView.background) {
|
|
if (cls) { lineView.background.className = cls; }
|
|
else { lineView.background.parentNode.removeChild(lineView.background); lineView.background = null; }
|
|
} else if (cls) {
|
|
var wrap = ensureLineWrapped(lineView);
|
|
lineView.background = wrap.insertBefore(elt("div", null, cls), wrap.firstChild);
|
|
cm.display.input.setUneditable(lineView.background);
|
|
}
|
|
}
|
|
|
|
// Wrapper around buildLineContent which will reuse the structure
|
|
// in display.externalMeasured when possible.
|
|
function getLineContent(cm, lineView) {
|
|
var ext = cm.display.externalMeasured;
|
|
if (ext && ext.line == lineView.line) {
|
|
cm.display.externalMeasured = null;
|
|
lineView.measure = ext.measure;
|
|
return ext.built
|
|
}
|
|
return buildLineContent(cm, lineView)
|
|
}
|
|
|
|
// Redraw the line's text. Interacts with the background and text
|
|
// classes because the mode may output tokens that influence these
|
|
// classes.
|
|
function updateLineText(cm, lineView) {
|
|
var cls = lineView.text.className;
|
|
var built = getLineContent(cm, lineView);
|
|
if (lineView.text == lineView.node) { lineView.node = built.pre; }
|
|
lineView.text.parentNode.replaceChild(built.pre, lineView.text);
|
|
lineView.text = built.pre;
|
|
if (built.bgClass != lineView.bgClass || built.textClass != lineView.textClass) {
|
|
lineView.bgClass = built.bgClass;
|
|
lineView.textClass = built.textClass;
|
|
updateLineClasses(cm, lineView);
|
|
} else if (cls) {
|
|
lineView.text.className = cls;
|
|
}
|
|
}
|
|
|
|
function updateLineClasses(cm, lineView) {
|
|
updateLineBackground(cm, lineView);
|
|
if (lineView.line.wrapClass)
|
|
{ ensureLineWrapped(lineView).className = lineView.line.wrapClass; }
|
|
else if (lineView.node != lineView.text)
|
|
{ lineView.node.className = ""; }
|
|
var textClass = lineView.textClass ? lineView.textClass + " " + (lineView.line.textClass || "") : lineView.line.textClass;
|
|
lineView.text.className = textClass || "";
|
|
}
|
|
|
|
function updateLineGutter(cm, lineView, lineN, dims) {
|
|
if (lineView.gutter) {
|
|
lineView.node.removeChild(lineView.gutter);
|
|
lineView.gutter = null;
|
|
}
|
|
if (lineView.gutterBackground) {
|
|
lineView.node.removeChild(lineView.gutterBackground);
|
|
lineView.gutterBackground = null;
|
|
}
|
|
if (lineView.line.gutterClass) {
|
|
var wrap = ensureLineWrapped(lineView);
|
|
lineView.gutterBackground = elt("div", null, "CodeMirror-gutter-background " + lineView.line.gutterClass,
|
|
("left: " + (cm.options.fixedGutter ? dims.fixedPos : -dims.gutterTotalWidth) + "px; width: " + (dims.gutterTotalWidth) + "px"));
|
|
cm.display.input.setUneditable(lineView.gutterBackground);
|
|
wrap.insertBefore(lineView.gutterBackground, lineView.text);
|
|
}
|
|
var markers = lineView.line.gutterMarkers;
|
|
if (cm.options.lineNumbers || markers) {
|
|
var wrap$1 = ensureLineWrapped(lineView);
|
|
var gutterWrap = lineView.gutter = elt("div", null, "CodeMirror-gutter-wrapper", ("left: " + (cm.options.fixedGutter ? dims.fixedPos : -dims.gutterTotalWidth) + "px"));
|
|
gutterWrap.setAttribute("aria-hidden", "true");
|
|
cm.display.input.setUneditable(gutterWrap);
|
|
wrap$1.insertBefore(gutterWrap, lineView.text);
|
|
if (lineView.line.gutterClass)
|
|
{ gutterWrap.className += " " + lineView.line.gutterClass; }
|
|
if (cm.options.lineNumbers && (!markers || !markers["CodeMirror-linenumbers"]))
|
|
{ lineView.lineNumber = gutterWrap.appendChild(
|
|
elt("div", lineNumberFor(cm.options, lineN),
|
|
"CodeMirror-linenumber CodeMirror-gutter-elt",
|
|
("left: " + (dims.gutterLeft["CodeMirror-linenumbers"]) + "px; width: " + (cm.display.lineNumInnerWidth) + "px"))); }
|
|
if (markers) { for (var k = 0; k < cm.display.gutterSpecs.length; ++k) {
|
|
var id = cm.display.gutterSpecs[k].className, found = markers.hasOwnProperty(id) && markers[id];
|
|
if (found)
|
|
{ gutterWrap.appendChild(elt("div", [found], "CodeMirror-gutter-elt",
|
|
("left: " + (dims.gutterLeft[id]) + "px; width: " + (dims.gutterWidth[id]) + "px"))); }
|
|
} }
|
|
}
|
|
}
|
|
|
|
function updateLineWidgets(cm, lineView, dims) {
|
|
if (lineView.alignable) { lineView.alignable = null; }
|
|
var isWidget = classTest("CodeMirror-linewidget");
|
|
for (var node = lineView.node.firstChild, next = (void 0); node; node = next) {
|
|
next = node.nextSibling;
|
|
if (isWidget.test(node.className)) { lineView.node.removeChild(node); }
|
|
}
|
|
insertLineWidgets(cm, lineView, dims);
|
|
}
|
|
|
|
// Build a line's DOM representation from scratch
|
|
function buildLineElement(cm, lineView, lineN, dims) {
|
|
var built = getLineContent(cm, lineView);
|
|
lineView.text = lineView.node = built.pre;
|
|
if (built.bgClass) { lineView.bgClass = built.bgClass; }
|
|
if (built.textClass) { lineView.textClass = built.textClass; }
|
|
|
|
updateLineClasses(cm, lineView);
|
|
updateLineGutter(cm, lineView, lineN, dims);
|
|
insertLineWidgets(cm, lineView, dims);
|
|
return lineView.node
|
|
}
|
|
|
|
// A lineView may contain multiple logical lines (when merged by
|
|
// collapsed spans). The widgets for all of them need to be drawn.
|
|
function insertLineWidgets(cm, lineView, dims) {
|
|
insertLineWidgetsFor(cm, lineView.line, lineView, dims, true);
|
|
if (lineView.rest) { for (var i = 0; i < lineView.rest.length; i++)
|
|
{ insertLineWidgetsFor(cm, lineView.rest[i], lineView, dims, false); } }
|
|
}
|
|
|
|
function insertLineWidgetsFor(cm, line, lineView, dims, allowAbove) {
|
|
if (!line.widgets) { return }
|
|
var wrap = ensureLineWrapped(lineView);
|
|
for (var i = 0, ws = line.widgets; i < ws.length; ++i) {
|
|
var widget = ws[i], node = elt("div", [widget.node], "CodeMirror-linewidget" + (widget.className ? " " + widget.className : ""));
|
|
if (!widget.handleMouseEvents) { node.setAttribute("cm-ignore-events", "true"); }
|
|
positionLineWidget(widget, node, lineView, dims);
|
|
cm.display.input.setUneditable(node);
|
|
if (allowAbove && widget.above)
|
|
{ wrap.insertBefore(node, lineView.gutter || lineView.text); }
|
|
else
|
|
{ wrap.appendChild(node); }
|
|
signalLater(widget, "redraw");
|
|
}
|
|
}
|
|
|
|
function positionLineWidget(widget, node, lineView, dims) {
|
|
if (widget.noHScroll) {
|
|
(lineView.alignable || (lineView.alignable = [])).push(node);
|
|
var width = dims.wrapperWidth;
|
|
node.style.left = dims.fixedPos + "px";
|
|
if (!widget.coverGutter) {
|
|
width -= dims.gutterTotalWidth;
|
|
node.style.paddingLeft = dims.gutterTotalWidth + "px";
|
|
}
|
|
node.style.width = width + "px";
|
|
}
|
|
if (widget.coverGutter) {
|
|
node.style.zIndex = 5;
|
|
node.style.position = "relative";
|
|
if (!widget.noHScroll) { node.style.marginLeft = -dims.gutterTotalWidth + "px"; }
|
|
}
|
|
}
|
|
|
|
function widgetHeight(widget) {
|
|
if (widget.height != null) { return widget.height }
|
|
var cm = widget.doc.cm;
|
|
if (!cm) { return 0 }
|
|
if (!contains(document.body, widget.node)) {
|
|
var parentStyle = "position: relative;";
|
|
if (widget.coverGutter)
|
|
{ parentStyle += "margin-left: -" + cm.display.gutters.offsetWidth + "px;"; }
|
|
if (widget.noHScroll)
|
|
{ parentStyle += "width: " + cm.display.wrapper.clientWidth + "px;"; }
|
|
removeChildrenAndAdd(cm.display.measure, elt("div", [widget.node], null, parentStyle));
|
|
}
|
|
return widget.height = widget.node.parentNode.offsetHeight
|
|
}
|
|
|
|
// Return true when the given mouse event happened in a widget
|
|
function eventInWidget(display, e) {
|
|
for (var n = e_target(e); n != display.wrapper; n = n.parentNode) {
|
|
if (!n || (n.nodeType == 1 && n.getAttribute("cm-ignore-events") == "true") ||
|
|
(n.parentNode == display.sizer && n != display.mover))
|
|
{ return true }
|
|
}
|
|
}
|
|
|
|
// POSITION MEASUREMENT
|
|
|
|
function paddingTop(display) {return display.lineSpace.offsetTop}
|
|
function paddingVert(display) {return display.mover.offsetHeight - display.lineSpace.offsetHeight}
|
|
function paddingH(display) {
|
|
if (display.cachedPaddingH) { return display.cachedPaddingH }
|
|
var e = removeChildrenAndAdd(display.measure, elt("pre", "x", "CodeMirror-line-like"));
|
|
var style = window.getComputedStyle ? window.getComputedStyle(e) : e.currentStyle;
|
|
var data = {left: parseInt(style.paddingLeft), right: parseInt(style.paddingRight)};
|
|
if (!isNaN(data.left) && !isNaN(data.right)) { display.cachedPaddingH = data; }
|
|
return data
|
|
}
|
|
|
|
function scrollGap(cm) { return scrollerGap - cm.display.nativeBarWidth }
|
|
function displayWidth(cm) {
|
|
return cm.display.scroller.clientWidth - scrollGap(cm) - cm.display.barWidth
|
|
}
|
|
function displayHeight(cm) {
|
|
return cm.display.scroller.clientHeight - scrollGap(cm) - cm.display.barHeight
|
|
}
|
|
|
|
// Ensure the lineView.wrapping.heights array is populated. This is
|
|
// an array of bottom offsets for the lines that make up a drawn
|
|
// line. When lineWrapping is on, there might be more than one
|
|
// height.
|
|
function ensureLineHeights(cm, lineView, rect) {
|
|
var wrapping = cm.options.lineWrapping;
|
|
var curWidth = wrapping && displayWidth(cm);
|
|
if (!lineView.measure.heights || wrapping && lineView.measure.width != curWidth) {
|
|
var heights = lineView.measure.heights = [];
|
|
if (wrapping) {
|
|
lineView.measure.width = curWidth;
|
|
var rects = lineView.text.firstChild.getClientRects();
|
|
for (var i = 0; i < rects.length - 1; i++) {
|
|
var cur = rects[i], next = rects[i + 1];
|
|
if (Math.abs(cur.bottom - next.bottom) > 2)
|
|
{ heights.push((cur.bottom + next.top) / 2 - rect.top); }
|
|
}
|
|
}
|
|
heights.push(rect.bottom - rect.top);
|
|
}
|
|
}
|
|
|
|
// Find a line map (mapping character offsets to text nodes) and a
|
|
// measurement cache for the given line number. (A line view might
|
|
// contain multiple lines when collapsed ranges are present.)
|
|
function mapFromLineView(lineView, line, lineN) {
|
|
if (lineView.line == line)
|
|
{ return {map: lineView.measure.map, cache: lineView.measure.cache} }
|
|
if (lineView.rest) {
|
|
for (var i = 0; i < lineView.rest.length; i++)
|
|
{ if (lineView.rest[i] == line)
|
|
{ return {map: lineView.measure.maps[i], cache: lineView.measure.caches[i]} } }
|
|
for (var i$1 = 0; i$1 < lineView.rest.length; i$1++)
|
|
{ if (lineNo(lineView.rest[i$1]) > lineN)
|
|
{ return {map: lineView.measure.maps[i$1], cache: lineView.measure.caches[i$1], before: true} } }
|
|
}
|
|
}
|
|
|
|
// Render a line into the hidden node display.externalMeasured. Used
|
|
// when measurement is needed for a line that's not in the viewport.
|
|
function updateExternalMeasurement(cm, line) {
|
|
line = visualLine(line);
|
|
var lineN = lineNo(line);
|
|
var view = cm.display.externalMeasured = new LineView(cm.doc, line, lineN);
|
|
view.lineN = lineN;
|
|
var built = view.built = buildLineContent(cm, view);
|
|
view.text = built.pre;
|
|
removeChildrenAndAdd(cm.display.lineMeasure, built.pre);
|
|
return view
|
|
}
|
|
|
|
// Get a {top, bottom, left, right} box (in line-local coordinates)
|
|
// for a given character.
|
|
function measureChar(cm, line, ch, bias) {
|
|
return measureCharPrepared(cm, prepareMeasureForLine(cm, line), ch, bias)
|
|
}
|
|
|
|
// Find a line view that corresponds to the given line number.
|
|
function findViewForLine(cm, lineN) {
|
|
if (lineN >= cm.display.viewFrom && lineN < cm.display.viewTo)
|
|
{ return cm.display.view[findViewIndex(cm, lineN)] }
|
|
var ext = cm.display.externalMeasured;
|
|
if (ext && lineN >= ext.lineN && lineN < ext.lineN + ext.size)
|
|
{ return ext }
|
|
}
|
|
|
|
// Measurement can be split in two steps, the set-up work that
|
|
// applies to the whole line, and the measurement of the actual
|
|
// character. Functions like coordsChar, that need to do a lot of
|
|
// measurements in a row, can thus ensure that the set-up work is
|
|
// only done once.
|
|
function prepareMeasureForLine(cm, line) {
|
|
var lineN = lineNo(line);
|
|
var view = findViewForLine(cm, lineN);
|
|
if (view && !view.text) {
|
|
view = null;
|
|
} else if (view && view.changes) {
|
|
updateLineForChanges(cm, view, lineN, getDimensions(cm));
|
|
cm.curOp.forceUpdate = true;
|
|
}
|
|
if (!view)
|
|
{ view = updateExternalMeasurement(cm, line); }
|
|
|
|
var info = mapFromLineView(view, line, lineN);
|
|
return {
|
|
line: line, view: view, rect: null,
|
|
map: info.map, cache: info.cache, before: info.before,
|
|
hasHeights: false
|
|
}
|
|
}
|
|
|
|
// Given a prepared measurement object, measures the position of an
|
|
// actual character (or fetches it from the cache).
|
|
function measureCharPrepared(cm, prepared, ch, bias, varHeight) {
|
|
if (prepared.before) { ch = -1; }
|
|
var key = ch + (bias || ""), found;
|
|
if (prepared.cache.hasOwnProperty(key)) {
|
|
found = prepared.cache[key];
|
|
} else {
|
|
if (!prepared.rect)
|
|
{ prepared.rect = prepared.view.text.getBoundingClientRect(); }
|
|
if (!prepared.hasHeights) {
|
|
ensureLineHeights(cm, prepared.view, prepared.rect);
|
|
prepared.hasHeights = true;
|
|
}
|
|
found = measureCharInner(cm, prepared, ch, bias);
|
|
if (!found.bogus) { prepared.cache[key] = found; }
|
|
}
|
|
return {left: found.left, right: found.right,
|
|
top: varHeight ? found.rtop : found.top,
|
|
bottom: varHeight ? found.rbottom : found.bottom}
|
|
}
|
|
|
|
var nullRect = {left: 0, right: 0, top: 0, bottom: 0};
|
|
|
|
function nodeAndOffsetInLineMap(map, ch, bias) {
|
|
var node, start, end, collapse, mStart, mEnd;
|
|
// First, search the line map for the text node corresponding to,
|
|
// or closest to, the target character.
|
|
for (var i = 0; i < map.length; i += 3) {
|
|
mStart = map[i];
|
|
mEnd = map[i + 1];
|
|
if (ch < mStart) {
|
|
start = 0; end = 1;
|
|
collapse = "left";
|
|
} else if (ch < mEnd) {
|
|
start = ch - mStart;
|
|
end = start + 1;
|
|
} else if (i == map.length - 3 || ch == mEnd && map[i + 3] > ch) {
|
|
end = mEnd - mStart;
|
|
start = end - 1;
|
|
if (ch >= mEnd) { collapse = "right"; }
|
|
}
|
|
if (start != null) {
|
|
node = map[i + 2];
|
|
if (mStart == mEnd && bias == (node.insertLeft ? "left" : "right"))
|
|
{ collapse = bias; }
|
|
if (bias == "left" && start == 0)
|
|
{ while (i && map[i - 2] == map[i - 3] && map[i - 1].insertLeft) {
|
|
node = map[(i -= 3) + 2];
|
|
collapse = "left";
|
|
} }
|
|
if (bias == "right" && start == mEnd - mStart)
|
|
{ while (i < map.length - 3 && map[i + 3] == map[i + 4] && !map[i + 5].insertLeft) {
|
|
node = map[(i += 3) + 2];
|
|
collapse = "right";
|
|
} }
|
|
break
|
|
}
|
|
}
|
|
return {node: node, start: start, end: end, collapse: collapse, coverStart: mStart, coverEnd: mEnd}
|
|
}
|
|
|
|
function getUsefulRect(rects, bias) {
|
|
var rect = nullRect;
|
|
if (bias == "left") { for (var i = 0; i < rects.length; i++) {
|
|
if ((rect = rects[i]).left != rect.right) { break }
|
|
} } else { for (var i$1 = rects.length - 1; i$1 >= 0; i$1--) {
|
|
if ((rect = rects[i$1]).left != rect.right) { break }
|
|
} }
|
|
return rect
|
|
}
|
|
|
|
function measureCharInner(cm, prepared, ch, bias) {
|
|
var place = nodeAndOffsetInLineMap(prepared.map, ch, bias);
|
|
var node = place.node, start = place.start, end = place.end, collapse = place.collapse;
|
|
|
|
var rect;
|
|
if (node.nodeType == 3) { // If it is a text node, use a range to retrieve the coordinates.
|
|
for (var i$1 = 0; i$1 < 4; i$1++) { // Retry a maximum of 4 times when nonsense rectangles are returned
|
|
while (start && isExtendingChar(prepared.line.text.charAt(place.coverStart + start))) { --start; }
|
|
while (place.coverStart + end < place.coverEnd && isExtendingChar(prepared.line.text.charAt(place.coverStart + end))) { ++end; }
|
|
if (ie && ie_version < 9 && start == 0 && end == place.coverEnd - place.coverStart)
|
|
{ rect = node.parentNode.getBoundingClientRect(); }
|
|
else
|
|
{ rect = getUsefulRect(range(node, start, end).getClientRects(), bias); }
|
|
if (rect.left || rect.right || start == 0) { break }
|
|
end = start;
|
|
start = start - 1;
|
|
collapse = "right";
|
|
}
|
|
if (ie && ie_version < 11) { rect = maybeUpdateRectForZooming(cm.display.measure, rect); }
|
|
} else { // If it is a widget, simply get the box for the whole widget.
|
|
if (start > 0) { collapse = bias = "right"; }
|
|
var rects;
|
|
if (cm.options.lineWrapping && (rects = node.getClientRects()).length > 1)
|
|
{ rect = rects[bias == "right" ? rects.length - 1 : 0]; }
|
|
else
|
|
{ rect = node.getBoundingClientRect(); }
|
|
}
|
|
if (ie && ie_version < 9 && !start && (!rect || !rect.left && !rect.right)) {
|
|
var rSpan = node.parentNode.getClientRects()[0];
|
|
if (rSpan)
|
|
{ rect = {left: rSpan.left, right: rSpan.left + charWidth(cm.display), top: rSpan.top, bottom: rSpan.bottom}; }
|
|
else
|
|
{ rect = nullRect; }
|
|
}
|
|
|
|
var rtop = rect.top - prepared.rect.top, rbot = rect.bottom - prepared.rect.top;
|
|
var mid = (rtop + rbot) / 2;
|
|
var heights = prepared.view.measure.heights;
|
|
var i = 0;
|
|
for (; i < heights.length - 1; i++)
|
|
{ if (mid < heights[i]) { break } }
|
|
var top = i ? heights[i - 1] : 0, bot = heights[i];
|
|
var result = {left: (collapse == "right" ? rect.right : rect.left) - prepared.rect.left,
|
|
right: (collapse == "left" ? rect.left : rect.right) - prepared.rect.left,
|
|
top: top, bottom: bot};
|
|
if (!rect.left && !rect.right) { result.bogus = true; }
|
|
if (!cm.options.singleCursorHeightPerLine) { result.rtop = rtop; result.rbottom = rbot; }
|
|
|
|
return result
|
|
}
|
|
|
|
// Work around problem with bounding client rects on ranges being
|
|
// returned incorrectly when zoomed on IE10 and below.
|
|
function maybeUpdateRectForZooming(measure, rect) {
|
|
if (!window.screen || screen.logicalXDPI == null ||
|
|
screen.logicalXDPI == screen.deviceXDPI || !hasBadZoomedRects(measure))
|
|
{ return rect }
|
|
var scaleX = screen.logicalXDPI / screen.deviceXDPI;
|
|
var scaleY = screen.logicalYDPI / screen.deviceYDPI;
|
|
return {left: rect.left * scaleX, right: rect.right * scaleX,
|
|
top: rect.top * scaleY, bottom: rect.bottom * scaleY}
|
|
}
|
|
|
|
function clearLineMeasurementCacheFor(lineView) {
|
|
if (lineView.measure) {
|
|
lineView.measure.cache = {};
|
|
lineView.measure.heights = null;
|
|
if (lineView.rest) { for (var i = 0; i < lineView.rest.length; i++)
|
|
{ lineView.measure.caches[i] = {}; } }
|
|
}
|
|
}
|
|
|
|
function clearLineMeasurementCache(cm) {
|
|
cm.display.externalMeasure = null;
|
|
removeChildren(cm.display.lineMeasure);
|
|
for (var i = 0; i < cm.display.view.length; i++)
|
|
{ clearLineMeasurementCacheFor(cm.display.view[i]); }
|
|
}
|
|
|
|
function clearCaches(cm) {
|
|
clearLineMeasurementCache(cm);
|
|
cm.display.cachedCharWidth = cm.display.cachedTextHeight = cm.display.cachedPaddingH = null;
|
|
if (!cm.options.lineWrapping) { cm.display.maxLineChanged = true; }
|
|
cm.display.lineNumChars = null;
|
|
}
|
|
|
|
function pageScrollX() {
|
|
// Work around https://bugs.chromium.org/p/chromium/issues/detail?id=489206
|
|
// which causes page_Offset and bounding client rects to use
|
|
// different reference viewports and invalidate our calculations.
|
|
if (chrome && android) { return -(document.body.getBoundingClientRect().left - parseInt(getComputedStyle(document.body).marginLeft)) }
|
|
return window.pageXOffset || (document.documentElement || document.body).scrollLeft
|
|
}
|
|
function pageScrollY() {
|
|
if (chrome && android) { return -(document.body.getBoundingClientRect().top - parseInt(getComputedStyle(document.body).marginTop)) }
|
|
return window.pageYOffset || (document.documentElement || document.body).scrollTop
|
|
}
|
|
|
|
function widgetTopHeight(lineObj) {
|
|
var height = 0;
|
|
if (lineObj.widgets) { for (var i = 0; i < lineObj.widgets.length; ++i) { if (lineObj.widgets[i].above)
|
|
{ height += widgetHeight(lineObj.widgets[i]); } } }
|
|
return height
|
|
}
|
|
|
|
// Converts a {top, bottom, left, right} box from line-local
|
|
// coordinates into another coordinate system. Context may be one of
|
|
// "line", "div" (display.lineDiv), "local"./null (editor), "window",
|
|
// or "page".
|
|
function intoCoordSystem(cm, lineObj, rect, context, includeWidgets) {
|
|
if (!includeWidgets) {
|
|
var height = widgetTopHeight(lineObj);
|
|
rect.top += height; rect.bottom += height;
|
|
}
|
|
if (context == "line") { return rect }
|
|
if (!context) { context = "local"; }
|
|
var yOff = heightAtLine(lineObj);
|
|
if (context == "local") { yOff += paddingTop(cm.display); }
|
|
else { yOff -= cm.display.viewOffset; }
|
|
if (context == "page" || context == "window") {
|
|
var lOff = cm.display.lineSpace.getBoundingClientRect();
|
|
yOff += lOff.top + (context == "window" ? 0 : pageScrollY());
|
|
var xOff = lOff.left + (context == "window" ? 0 : pageScrollX());
|
|
rect.left += xOff; rect.right += xOff;
|
|
}
|
|
rect.top += yOff; rect.bottom += yOff;
|
|
return rect
|
|
}
|
|
|
|
// Coverts a box from "div" coords to another coordinate system.
|
|
// Context may be "window", "page", "div", or "local"./null.
|
|
function fromCoordSystem(cm, coords, context) {
|
|
if (context == "div") { return coords }
|
|
var left = coords.left, top = coords.top;
|
|
// First move into "page" coordinate system
|
|
if (context == "page") {
|
|
left -= pageScrollX();
|
|
top -= pageScrollY();
|
|
} else if (context == "local" || !context) {
|
|
var localBox = cm.display.sizer.getBoundingClientRect();
|
|
left += localBox.left;
|
|
top += localBox.top;
|
|
}
|
|
|
|
var lineSpaceBox = cm.display.lineSpace.getBoundingClientRect();
|
|
return {left: left - lineSpaceBox.left, top: top - lineSpaceBox.top}
|
|
}
|
|
|
|
function charCoords(cm, pos, context, lineObj, bias) {
|
|
if (!lineObj) { lineObj = getLine(cm.doc, pos.line); }
|
|
return intoCoordSystem(cm, lineObj, measureChar(cm, lineObj, pos.ch, bias), context)
|
|
}
|
|
|
|
// Returns a box for a given cursor position, which may have an
|
|
// 'other' property containing the position of the secondary cursor
|
|
// on a bidi boundary.
|
|
// A cursor Pos(line, char, "before") is on the same visual line as `char - 1`
|
|
// and after `char - 1` in writing order of `char - 1`
|
|
// A cursor Pos(line, char, "after") is on the same visual line as `char`
|
|
// and before `char` in writing order of `char`
|
|
// Examples (upper-case letters are RTL, lower-case are LTR):
|
|
// Pos(0, 1, ...)
|
|
// before after
|
|
// ab a|b a|b
|
|
// aB a|B aB|
|
|
// Ab |Ab A|b
|
|
// AB B|A B|A
|
|
// Every position after the last character on a line is considered to stick
|
|
// to the last character on the line.
|
|
function cursorCoords(cm, pos, context, lineObj, preparedMeasure, varHeight) {
|
|
lineObj = lineObj || getLine(cm.doc, pos.line);
|
|
if (!preparedMeasure) { preparedMeasure = prepareMeasureForLine(cm, lineObj); }
|
|
function get(ch, right) {
|
|
var m = measureCharPrepared(cm, preparedMeasure, ch, right ? "right" : "left", varHeight);
|
|
if (right) { m.left = m.right; } else { m.right = m.left; }
|
|
return intoCoordSystem(cm, lineObj, m, context)
|
|
}
|
|
var order = getOrder(lineObj, cm.doc.direction), ch = pos.ch, sticky = pos.sticky;
|
|
if (ch >= lineObj.text.length) {
|
|
ch = lineObj.text.length;
|
|
sticky = "before";
|
|
} else if (ch <= 0) {
|
|
ch = 0;
|
|
sticky = "after";
|
|
}
|
|
if (!order) { return get(sticky == "before" ? ch - 1 : ch, sticky == "before") }
|
|
|
|
function getBidi(ch, partPos, invert) {
|
|
var part = order[partPos], right = part.level == 1;
|
|
return get(invert ? ch - 1 : ch, right != invert)
|
|
}
|
|
var partPos = getBidiPartAt(order, ch, sticky);
|
|
var other = bidiOther;
|
|
var val = getBidi(ch, partPos, sticky == "before");
|
|
if (other != null) { val.other = getBidi(ch, other, sticky != "before"); }
|
|
return val
|
|
}
|
|
|
|
// Used to cheaply estimate the coordinates for a position. Used for
|
|
// intermediate scroll updates.
|
|
function estimateCoords(cm, pos) {
|
|
var left = 0;
|
|
pos = clipPos(cm.doc, pos);
|
|
if (!cm.options.lineWrapping) { left = charWidth(cm.display) * pos.ch; }
|
|
var lineObj = getLine(cm.doc, pos.line);
|
|
var top = heightAtLine(lineObj) + paddingTop(cm.display);
|
|
return {left: left, right: left, top: top, bottom: top + lineObj.height}
|
|
}
|
|
|
|
// Positions returned by coordsChar contain some extra information.
|
|
// xRel is the relative x position of the input coordinates compared
|
|
// to the found position (so xRel > 0 means the coordinates are to
|
|
// the right of the character position, for example). When outside
|
|
// is true, that means the coordinates lie outside the line's
|
|
// vertical range.
|
|
function PosWithInfo(line, ch, sticky, outside, xRel) {
|
|
var pos = Pos(line, ch, sticky);
|
|
pos.xRel = xRel;
|
|
if (outside) { pos.outside = outside; }
|
|
return pos
|
|
}
|
|
|
|
// Compute the character position closest to the given coordinates.
|
|
// Input must be lineSpace-local ("div" coordinate system).
|
|
function coordsChar(cm, x, y) {
|
|
var doc = cm.doc;
|
|
y += cm.display.viewOffset;
|
|
if (y < 0) { return PosWithInfo(doc.first, 0, null, -1, -1) }
|
|
var lineN = lineAtHeight(doc, y), last = doc.first + doc.size - 1;
|
|
if (lineN > last)
|
|
{ return PosWithInfo(doc.first + doc.size - 1, getLine(doc, last).text.length, null, 1, 1) }
|
|
if (x < 0) { x = 0; }
|
|
|
|
var lineObj = getLine(doc, lineN);
|
|
for (;;) {
|
|
var found = coordsCharInner(cm, lineObj, lineN, x, y);
|
|
var collapsed = collapsedSpanAround(lineObj, found.ch + (found.xRel > 0 || found.outside > 0 ? 1 : 0));
|
|
if (!collapsed) { return found }
|
|
var rangeEnd = collapsed.find(1);
|
|
if (rangeEnd.line == lineN) { return rangeEnd }
|
|
lineObj = getLine(doc, lineN = rangeEnd.line);
|
|
}
|
|
}
|
|
|
|
function wrappedLineExtent(cm, lineObj, preparedMeasure, y) {
|
|
y -= widgetTopHeight(lineObj);
|
|
var end = lineObj.text.length;
|
|
var begin = findFirst(function (ch) { return measureCharPrepared(cm, preparedMeasure, ch - 1).bottom <= y; }, end, 0);
|
|
end = findFirst(function (ch) { return measureCharPrepared(cm, preparedMeasure, ch).top > y; }, begin, end);
|
|
return {begin: begin, end: end}
|
|
}
|
|
|
|
function wrappedLineExtentChar(cm, lineObj, preparedMeasure, target) {
|
|
if (!preparedMeasure) { preparedMeasure = prepareMeasureForLine(cm, lineObj); }
|
|
var targetTop = intoCoordSystem(cm, lineObj, measureCharPrepared(cm, preparedMeasure, target), "line").top;
|
|
return wrappedLineExtent(cm, lineObj, preparedMeasure, targetTop)
|
|
}
|
|
|
|
// Returns true if the given side of a box is after the given
|
|
// coordinates, in top-to-bottom, left-to-right order.
|
|
function boxIsAfter(box, x, y, left) {
|
|
return box.bottom <= y ? false : box.top > y ? true : (left ? box.left : box.right) > x
|
|
}
|
|
|
|
function coordsCharInner(cm, lineObj, lineNo, x, y) {
|
|
// Move y into line-local coordinate space
|
|
y -= heightAtLine(lineObj);
|
|
var preparedMeasure = prepareMeasureForLine(cm, lineObj);
|
|
// When directly calling `measureCharPrepared`, we have to adjust
|
|
// for the widgets at this line.
|
|
var widgetHeight = widgetTopHeight(lineObj);
|
|
var begin = 0, end = lineObj.text.length, ltr = true;
|
|
|
|
var order = getOrder(lineObj, cm.doc.direction);
|
|
// If the line isn't plain left-to-right text, first figure out
|
|
// which bidi section the coordinates fall into.
|
|
if (order) {
|
|
var part = (cm.options.lineWrapping ? coordsBidiPartWrapped : coordsBidiPart)
|
|
(cm, lineObj, lineNo, preparedMeasure, order, x, y);
|
|
ltr = part.level != 1;
|
|
// The awkward -1 offsets are needed because findFirst (called
|
|
// on these below) will treat its first bound as inclusive,
|
|
// second as exclusive, but we want to actually address the
|
|
// characters in the part's range
|
|
begin = ltr ? part.from : part.to - 1;
|
|
end = ltr ? part.to : part.from - 1;
|
|
}
|
|
|
|
// A binary search to find the first character whose bounding box
|
|
// starts after the coordinates. If we run across any whose box wrap
|
|
// the coordinates, store that.
|
|
var chAround = null, boxAround = null;
|
|
var ch = findFirst(function (ch) {
|
|
var box = measureCharPrepared(cm, preparedMeasure, ch);
|
|
box.top += widgetHeight; box.bottom += widgetHeight;
|
|
if (!boxIsAfter(box, x, y, false)) { return false }
|
|
if (box.top <= y && box.left <= x) {
|
|
chAround = ch;
|
|
boxAround = box;
|
|
}
|
|
return true
|
|
}, begin, end);
|
|
|
|
var baseX, sticky, outside = false;
|
|
// If a box around the coordinates was found, use that
|
|
if (boxAround) {
|
|
// Distinguish coordinates nearer to the left or right side of the box
|
|
var atLeft = x - boxAround.left < boxAround.right - x, atStart = atLeft == ltr;
|
|
ch = chAround + (atStart ? 0 : 1);
|
|
sticky = atStart ? "after" : "before";
|
|
baseX = atLeft ? boxAround.left : boxAround.right;
|
|
} else {
|
|
// (Adjust for extended bound, if necessary.)
|
|
if (!ltr && (ch == end || ch == begin)) { ch++; }
|
|
// To determine which side to associate with, get the box to the
|
|
// left of the character and compare it's vertical position to the
|
|
// coordinates
|
|
sticky = ch == 0 ? "after" : ch == lineObj.text.length ? "before" :
|
|
(measureCharPrepared(cm, preparedMeasure, ch - (ltr ? 1 : 0)).bottom + widgetHeight <= y) == ltr ?
|
|
"after" : "before";
|
|
// Now get accurate coordinates for this place, in order to get a
|
|
// base X position
|
|
var coords = cursorCoords(cm, Pos(lineNo, ch, sticky), "line", lineObj, preparedMeasure);
|
|
baseX = coords.left;
|
|
outside = y < coords.top ? -1 : y >= coords.bottom ? 1 : 0;
|
|
}
|
|
|
|
ch = skipExtendingChars(lineObj.text, ch, 1);
|
|
return PosWithInfo(lineNo, ch, sticky, outside, x - baseX)
|
|
}
|
|
|
|
function coordsBidiPart(cm, lineObj, lineNo, preparedMeasure, order, x, y) {
|
|
// Bidi parts are sorted left-to-right, and in a non-line-wrapping
|
|
// situation, we can take this ordering to correspond to the visual
|
|
// ordering. This finds the first part whose end is after the given
|
|
// coordinates.
|
|
var index = findFirst(function (i) {
|
|
var part = order[i], ltr = part.level != 1;
|
|
return boxIsAfter(cursorCoords(cm, Pos(lineNo, ltr ? part.to : part.from, ltr ? "before" : "after"),
|
|
"line", lineObj, preparedMeasure), x, y, true)
|
|
}, 0, order.length - 1);
|
|
var part = order[index];
|
|
// If this isn't the first part, the part's start is also after
|
|
// the coordinates, and the coordinates aren't on the same line as
|
|
// that start, move one part back.
|
|
if (index > 0) {
|
|
var ltr = part.level != 1;
|
|
var start = cursorCoords(cm, Pos(lineNo, ltr ? part.from : part.to, ltr ? "after" : "before"),
|
|
"line", lineObj, preparedMeasure);
|
|
if (boxIsAfter(start, x, y, true) && start.top > y)
|
|
{ part = order[index - 1]; }
|
|
}
|
|
return part
|
|
}
|
|
|
|
function coordsBidiPartWrapped(cm, lineObj, _lineNo, preparedMeasure, order, x, y) {
|
|
// In a wrapped line, rtl text on wrapping boundaries can do things
|
|
// that don't correspond to the ordering in our `order` array at
|
|
// all, so a binary search doesn't work, and we want to return a
|
|
// part that only spans one line so that the binary search in
|
|
// coordsCharInner is safe. As such, we first find the extent of the
|
|
// wrapped line, and then do a flat search in which we discard any
|
|
// spans that aren't on the line.
|
|
var ref = wrappedLineExtent(cm, lineObj, preparedMeasure, y);
|
|
var begin = ref.begin;
|
|
var end = ref.end;
|
|
if (/\s/.test(lineObj.text.charAt(end - 1))) { end--; }
|
|
var part = null, closestDist = null;
|
|
for (var i = 0; i < order.length; i++) {
|
|
var p = order[i];
|
|
if (p.from >= end || p.to <= begin) { continue }
|
|
var ltr = p.level != 1;
|
|
var endX = measureCharPrepared(cm, preparedMeasure, ltr ? Math.min(end, p.to) - 1 : Math.max(begin, p.from)).right;
|
|
// Weigh against spans ending before this, so that they are only
|
|
// picked if nothing ends after
|
|
var dist = endX < x ? x - endX + 1e9 : endX - x;
|
|
if (!part || closestDist > dist) {
|
|
part = p;
|
|
closestDist = dist;
|
|
}
|
|
}
|
|
if (!part) { part = order[order.length - 1]; }
|
|
// Clip the part to the wrapped line.
|
|
if (part.from < begin) { part = {from: begin, to: part.to, level: part.level}; }
|
|
if (part.to > end) { part = {from: part.from, to: end, level: part.level}; }
|
|
return part
|
|
}
|
|
|
|
var measureText;
|
|
// Compute the default text height.
|
|
function textHeight(display) {
|
|
if (display.cachedTextHeight != null) { return display.cachedTextHeight }
|
|
if (measureText == null) {
|
|
measureText = elt("pre", null, "CodeMirror-line-like");
|
|
// Measure a bunch of lines, for browsers that compute
|
|
// fractional heights.
|
|
for (var i = 0; i < 49; ++i) {
|
|
measureText.appendChild(document.createTextNode("x"));
|
|
measureText.appendChild(elt("br"));
|
|
}
|
|
measureText.appendChild(document.createTextNode("x"));
|
|
}
|
|
removeChildrenAndAdd(display.measure, measureText);
|
|
var height = measureText.offsetHeight / 50;
|
|
if (height > 3) { display.cachedTextHeight = height; }
|
|
removeChildren(display.measure);
|
|
return height || 1
|
|
}
|
|
|
|
// Compute the default character width.
|
|
function charWidth(display) {
|
|
if (display.cachedCharWidth != null) { return display.cachedCharWidth }
|
|
var anchor = elt("span", "xxxxxxxxxx");
|
|
var pre = elt("pre", [anchor], "CodeMirror-line-like");
|
|
removeChildrenAndAdd(display.measure, pre);
|
|
var rect = anchor.getBoundingClientRect(), width = (rect.right - rect.left) / 10;
|
|
if (width > 2) { display.cachedCharWidth = width; }
|
|
return width || 10
|
|
}
|
|
|
|
// Do a bulk-read of the DOM positions and sizes needed to draw the
|
|
// view, so that we don't interleave reading and writing to the DOM.
|
|
function getDimensions(cm) {
|
|
var d = cm.display, left = {}, width = {};
|
|
var gutterLeft = d.gutters.clientLeft;
|
|
for (var n = d.gutters.firstChild, i = 0; n; n = n.nextSibling, ++i) {
|
|
var id = cm.display.gutterSpecs[i].className;
|
|
left[id] = n.offsetLeft + n.clientLeft + gutterLeft;
|
|
width[id] = n.clientWidth;
|
|
}
|
|
return {fixedPos: compensateForHScroll(d),
|
|
gutterTotalWidth: d.gutters.offsetWidth,
|
|
gutterLeft: left,
|
|
gutterWidth: width,
|
|
wrapperWidth: d.wrapper.clientWidth}
|
|
}
|
|
|
|
// Computes display.scroller.scrollLeft + display.gutters.offsetWidth,
|
|
// but using getBoundingClientRect to get a sub-pixel-accurate
|
|
// result.
|
|
function compensateForHScroll(display) {
|
|
return display.scroller.getBoundingClientRect().left - display.sizer.getBoundingClientRect().left
|
|
}
|
|
|
|
// Returns a function that estimates the height of a line, to use as
|
|
// first approximation until the line becomes visible (and is thus
|
|
// properly measurable).
|
|
function estimateHeight(cm) {
|
|
var th = textHeight(cm.display), wrapping = cm.options.lineWrapping;
|
|
var perLine = wrapping && Math.max(5, cm.display.scroller.clientWidth / charWidth(cm.display) - 3);
|
|
return function (line) {
|
|
if (lineIsHidden(cm.doc, line)) { return 0 }
|
|
|
|
var widgetsHeight = 0;
|
|
if (line.widgets) { for (var i = 0; i < line.widgets.length; i++) {
|
|
if (line.widgets[i].height) { widgetsHeight += line.widgets[i].height; }
|
|
} }
|
|
|
|
if (wrapping)
|
|
{ return widgetsHeight + (Math.ceil(line.text.length / perLine) || 1) * th }
|
|
else
|
|
{ return widgetsHeight + th }
|
|
}
|
|
}
|
|
|
|
function estimateLineHeights(cm) {
|
|
var doc = cm.doc, est = estimateHeight(cm);
|
|
doc.iter(function (line) {
|
|
var estHeight = est(line);
|
|
if (estHeight != line.height) { updateLineHeight(line, estHeight); }
|
|
});
|
|
}
|
|
|
|
// Given a mouse event, find the corresponding position. If liberal
|
|
// is false, it checks whether a gutter or scrollbar was clicked,
|
|
// and returns null if it was. forRect is used by rectangular
|
|
// selections, and tries to estimate a character position even for
|
|
// coordinates beyond the right of the text.
|
|
function posFromMouse(cm, e, liberal, forRect) {
|
|
var display = cm.display;
|
|
if (!liberal && e_target(e).getAttribute("cm-not-content") == "true") { return null }
|
|
|
|
var x, y, space = display.lineSpace.getBoundingClientRect();
|
|
// Fails unpredictably on IE[67] when mouse is dragged around quickly.
|
|
try { x = e.clientX - space.left; y = e.clientY - space.top; }
|
|
catch (e$1) { return null }
|
|
var coords = coordsChar(cm, x, y), line;
|
|
if (forRect && coords.xRel > 0 && (line = getLine(cm.doc, coords.line).text).length == coords.ch) {
|
|
var colDiff = countColumn(line, line.length, cm.options.tabSize) - line.length;
|
|
coords = Pos(coords.line, Math.max(0, Math.round((x - paddingH(cm.display).left) / charWidth(cm.display)) - colDiff));
|
|
}
|
|
return coords
|
|
}
|
|
|
|
// Find the view element corresponding to a given line. Return null
|
|
// when the line isn't visible.
|
|
function findViewIndex(cm, n) {
|
|
if (n >= cm.display.viewTo) { return null }
|
|
n -= cm.display.viewFrom;
|
|
if (n < 0) { return null }
|
|
var view = cm.display.view;
|
|
for (var i = 0; i < view.length; i++) {
|
|
n -= view[i].size;
|
|
if (n < 0) { return i }
|
|
}
|
|
}
|
|
|
|
// Updates the display.view data structure for a given change to the
|
|
// document. From and to are in pre-change coordinates. Lendiff is
|
|
// the amount of lines added or subtracted by the change. This is
|
|
// used for changes that span multiple lines, or change the way
|
|
// lines are divided into visual lines. regLineChange (below)
|
|
// registers single-line changes.
|
|
function regChange(cm, from, to, lendiff) {
|
|
if (from == null) { from = cm.doc.first; }
|
|
if (to == null) { to = cm.doc.first + cm.doc.size; }
|
|
if (!lendiff) { lendiff = 0; }
|
|
|
|
var display = cm.display;
|
|
if (lendiff && to < display.viewTo &&
|
|
(display.updateLineNumbers == null || display.updateLineNumbers > from))
|
|
{ display.updateLineNumbers = from; }
|
|
|
|
cm.curOp.viewChanged = true;
|
|
|
|
if (from >= display.viewTo) { // Change after
|
|
if (sawCollapsedSpans && visualLineNo(cm.doc, from) < display.viewTo)
|
|
{ resetView(cm); }
|
|
} else if (to <= display.viewFrom) { // Change before
|
|
if (sawCollapsedSpans && visualLineEndNo(cm.doc, to + lendiff) > display.viewFrom) {
|
|
resetView(cm);
|
|
} else {
|
|
display.viewFrom += lendiff;
|
|
display.viewTo += lendiff;
|
|
}
|
|
} else if (from <= display.viewFrom && to >= display.viewTo) { // Full overlap
|
|
resetView(cm);
|
|
} else if (from <= display.viewFrom) { // Top overlap
|
|
var cut = viewCuttingPoint(cm, to, to + lendiff, 1);
|
|
if (cut) {
|
|
display.view = display.view.slice(cut.index);
|
|
display.viewFrom = cut.lineN;
|
|
display.viewTo += lendiff;
|
|
} else {
|
|
resetView(cm);
|
|
}
|
|
} else if (to >= display.viewTo) { // Bottom overlap
|
|
var cut$1 = viewCuttingPoint(cm, from, from, -1);
|
|
if (cut$1) {
|
|
display.view = display.view.slice(0, cut$1.index);
|
|
display.viewTo = cut$1.lineN;
|
|
} else {
|
|
resetView(cm);
|
|
}
|
|
} else { // Gap in the middle
|
|
var cutTop = viewCuttingPoint(cm, from, from, -1);
|
|
var cutBot = viewCuttingPoint(cm, to, to + lendiff, 1);
|
|
if (cutTop && cutBot) {
|
|
display.view = display.view.slice(0, cutTop.index)
|
|
.concat(buildViewArray(cm, cutTop.lineN, cutBot.lineN))
|
|
.concat(display.view.slice(cutBot.index));
|
|
display.viewTo += lendiff;
|
|
} else {
|
|
resetView(cm);
|
|
}
|
|
}
|
|
|
|
var ext = display.externalMeasured;
|
|
if (ext) {
|
|
if (to < ext.lineN)
|
|
{ ext.lineN += lendiff; }
|
|
else if (from < ext.lineN + ext.size)
|
|
{ display.externalMeasured = null; }
|
|
}
|
|
}
|
|
|
|
// Register a change to a single line. Type must be one of "text",
|
|
// "gutter", "class", "widget"
|
|
function regLineChange(cm, line, type) {
|
|
cm.curOp.viewChanged = true;
|
|
var display = cm.display, ext = cm.display.externalMeasured;
|
|
if (ext && line >= ext.lineN && line < ext.lineN + ext.size)
|
|
{ display.externalMeasured = null; }
|
|
|
|
if (line < display.viewFrom || line >= display.viewTo) { return }
|
|
var lineView = display.view[findViewIndex(cm, line)];
|
|
if (lineView.node == null) { return }
|
|
var arr = lineView.changes || (lineView.changes = []);
|
|
if (indexOf(arr, type) == -1) { arr.push(type); }
|
|
}
|
|
|
|
// Clear the view.
|
|
function resetView(cm) {
|
|
cm.display.viewFrom = cm.display.viewTo = cm.doc.first;
|
|
cm.display.view = [];
|
|
cm.display.viewOffset = 0;
|
|
}
|
|
|
|
function viewCuttingPoint(cm, oldN, newN, dir) {
|
|
var index = findViewIndex(cm, oldN), diff, view = cm.display.view;
|
|
if (!sawCollapsedSpans || newN == cm.doc.first + cm.doc.size)
|
|
{ return {index: index, lineN: newN} }
|
|
var n = cm.display.viewFrom;
|
|
for (var i = 0; i < index; i++)
|
|
{ n += view[i].size; }
|
|
if (n != oldN) {
|
|
if (dir > 0) {
|
|
if (index == view.length - 1) { return null }
|
|
diff = (n + view[index].size) - oldN;
|
|
index++;
|
|
} else {
|
|
diff = n - oldN;
|
|
}
|
|
oldN += diff; newN += diff;
|
|
}
|
|
while (visualLineNo(cm.doc, newN) != newN) {
|
|
if (index == (dir < 0 ? 0 : view.length - 1)) { return null }
|
|
newN += dir * view[index - (dir < 0 ? 1 : 0)].size;
|
|
index += dir;
|
|
}
|
|
return {index: index, lineN: newN}
|
|
}
|
|
|
|
// Force the view to cover a given range, adding empty view element
|
|
// or clipping off existing ones as needed.
|
|
function adjustView(cm, from, to) {
|
|
var display = cm.display, view = display.view;
|
|
if (view.length == 0 || from >= display.viewTo || to <= display.viewFrom) {
|
|
display.view = buildViewArray(cm, from, to);
|
|
display.viewFrom = from;
|
|
} else {
|
|
if (display.viewFrom > from)
|
|
{ display.view = buildViewArray(cm, from, display.viewFrom).concat(display.view); }
|
|
else if (display.viewFrom < from)
|
|
{ display.view = display.view.slice(findViewIndex(cm, from)); }
|
|
display.viewFrom = from;
|
|
if (display.viewTo < to)
|
|
{ display.view = display.view.concat(buildViewArray(cm, display.viewTo, to)); }
|
|
else if (display.viewTo > to)
|
|
{ display.view = display.view.slice(0, findViewIndex(cm, to)); }
|
|
}
|
|
display.viewTo = to;
|
|
}
|
|
|
|
// Count the number of lines in the view whose DOM representation is
|
|
// out of date (or nonexistent).
|
|
function countDirtyView(cm) {
|
|
var view = cm.display.view, dirty = 0;
|
|
for (var i = 0; i < view.length; i++) {
|
|
var lineView = view[i];
|
|
if (!lineView.hidden && (!lineView.node || lineView.changes)) { ++dirty; }
|
|
}
|
|
return dirty
|
|
}
|
|
|
|
function updateSelection(cm) {
|
|
cm.display.input.showSelection(cm.display.input.prepareSelection());
|
|
}
|
|
|
|
function prepareSelection(cm, primary) {
|
|
if ( primary === void 0 ) primary = true;
|
|
|
|
var doc = cm.doc, result = {};
|
|
var curFragment = result.cursors = document.createDocumentFragment();
|
|
var selFragment = result.selection = document.createDocumentFragment();
|
|
|
|
var customCursor = cm.options.$customCursor;
|
|
if (customCursor) { primary = true; }
|
|
for (var i = 0; i < doc.sel.ranges.length; i++) {
|
|
if (!primary && i == doc.sel.primIndex) { continue }
|
|
var range = doc.sel.ranges[i];
|
|
if (range.from().line >= cm.display.viewTo || range.to().line < cm.display.viewFrom) { continue }
|
|
var collapsed = range.empty();
|
|
if (customCursor) {
|
|
var head = customCursor(cm, range);
|
|
if (head) { drawSelectionCursor(cm, head, curFragment); }
|
|
} else if (collapsed || cm.options.showCursorWhenSelecting) {
|
|
drawSelectionCursor(cm, range.head, curFragment);
|
|
}
|
|
if (!collapsed)
|
|
{ drawSelectionRange(cm, range, selFragment); }
|
|
}
|
|
return result
|
|
}
|
|
|
|
// Draws a cursor for the given range
|
|
function drawSelectionCursor(cm, head, output) {
|
|
var pos = cursorCoords(cm, head, "div", null, null, !cm.options.singleCursorHeightPerLine);
|
|
|
|
var cursor = output.appendChild(elt("div", "\u00a0", "CodeMirror-cursor"));
|
|
cursor.style.left = pos.left + "px";
|
|
cursor.style.top = pos.top + "px";
|
|
cursor.style.height = Math.max(0, pos.bottom - pos.top) * cm.options.cursorHeight + "px";
|
|
|
|
if (/\bcm-fat-cursor\b/.test(cm.getWrapperElement().className)) {
|
|
var charPos = charCoords(cm, head, "div", null, null);
|
|
var width = charPos.right - charPos.left;
|
|
cursor.style.width = (width > 0 ? width : cm.defaultCharWidth()) + "px";
|
|
}
|
|
|
|
if (pos.other) {
|
|
// Secondary cursor, shown when on a 'jump' in bi-directional text
|
|
var otherCursor = output.appendChild(elt("div", "\u00a0", "CodeMirror-cursor CodeMirror-secondarycursor"));
|
|
otherCursor.style.display = "";
|
|
otherCursor.style.left = pos.other.left + "px";
|
|
otherCursor.style.top = pos.other.top + "px";
|
|
otherCursor.style.height = (pos.other.bottom - pos.other.top) * .85 + "px";
|
|
}
|
|
}
|
|
|
|
function cmpCoords(a, b) { return a.top - b.top || a.left - b.left }
|
|
|
|
// Draws the given range as a highlighted selection
|
|
function drawSelectionRange(cm, range, output) {
|
|
var display = cm.display, doc = cm.doc;
|
|
var fragment = document.createDocumentFragment();
|
|
var padding = paddingH(cm.display), leftSide = padding.left;
|
|
var rightSide = Math.max(display.sizerWidth, displayWidth(cm) - display.sizer.offsetLeft) - padding.right;
|
|
var docLTR = doc.direction == "ltr";
|
|
|
|
function add(left, top, width, bottom) {
|
|
if (top < 0) { top = 0; }
|
|
top = Math.round(top);
|
|
bottom = Math.round(bottom);
|
|
fragment.appendChild(elt("div", null, "CodeMirror-selected", ("position: absolute; left: " + left + "px;\n top: " + top + "px; width: " + (width == null ? rightSide - left : width) + "px;\n height: " + (bottom - top) + "px")));
|
|
}
|
|
|
|
function drawForLine(line, fromArg, toArg) {
|
|
var lineObj = getLine(doc, line);
|
|
var lineLen = lineObj.text.length;
|
|
var start, end;
|
|
function coords(ch, bias) {
|
|
return charCoords(cm, Pos(line, ch), "div", lineObj, bias)
|
|
}
|
|
|
|
function wrapX(pos, dir, side) {
|
|
var extent = wrappedLineExtentChar(cm, lineObj, null, pos);
|
|
var prop = (dir == "ltr") == (side == "after") ? "left" : "right";
|
|
var ch = side == "after" ? extent.begin : extent.end - (/\s/.test(lineObj.text.charAt(extent.end - 1)) ? 2 : 1);
|
|
return coords(ch, prop)[prop]
|
|
}
|
|
|
|
var order = getOrder(lineObj, doc.direction);
|
|
iterateBidiSections(order, fromArg || 0, toArg == null ? lineLen : toArg, function (from, to, dir, i) {
|
|
var ltr = dir == "ltr";
|
|
var fromPos = coords(from, ltr ? "left" : "right");
|
|
var toPos = coords(to - 1, ltr ? "right" : "left");
|
|
|
|
var openStart = fromArg == null && from == 0, openEnd = toArg == null && to == lineLen;
|
|
var first = i == 0, last = !order || i == order.length - 1;
|
|
if (toPos.top - fromPos.top <= 3) { // Single line
|
|
var openLeft = (docLTR ? openStart : openEnd) && first;
|
|
var openRight = (docLTR ? openEnd : openStart) && last;
|
|
var left = openLeft ? leftSide : (ltr ? fromPos : toPos).left;
|
|
var right = openRight ? rightSide : (ltr ? toPos : fromPos).right;
|
|
add(left, fromPos.top, right - left, fromPos.bottom);
|
|
} else { // Multiple lines
|
|
var topLeft, topRight, botLeft, botRight;
|
|
if (ltr) {
|
|
topLeft = docLTR && openStart && first ? leftSide : fromPos.left;
|
|
topRight = docLTR ? rightSide : wrapX(from, dir, "before");
|
|
botLeft = docLTR ? leftSide : wrapX(to, dir, "after");
|
|
botRight = docLTR && openEnd && last ? rightSide : toPos.right;
|
|
} else {
|
|
topLeft = !docLTR ? leftSide : wrapX(from, dir, "before");
|
|
topRight = !docLTR && openStart && first ? rightSide : fromPos.right;
|
|
botLeft = !docLTR && openEnd && last ? leftSide : toPos.left;
|
|
botRight = !docLTR ? rightSide : wrapX(to, dir, "after");
|
|
}
|
|
add(topLeft, fromPos.top, topRight - topLeft, fromPos.bottom);
|
|
if (fromPos.bottom < toPos.top) { add(leftSide, fromPos.bottom, null, toPos.top); }
|
|
add(botLeft, toPos.top, botRight - botLeft, toPos.bottom);
|
|
}
|
|
|
|
if (!start || cmpCoords(fromPos, start) < 0) { start = fromPos; }
|
|
if (cmpCoords(toPos, start) < 0) { start = toPos; }
|
|
if (!end || cmpCoords(fromPos, end) < 0) { end = fromPos; }
|
|
if (cmpCoords(toPos, end) < 0) { end = toPos; }
|
|
});
|
|
return {start: start, end: end}
|
|
}
|
|
|
|
var sFrom = range.from(), sTo = range.to();
|
|
if (sFrom.line == sTo.line) {
|
|
drawForLine(sFrom.line, sFrom.ch, sTo.ch);
|
|
} else {
|
|
var fromLine = getLine(doc, sFrom.line), toLine = getLine(doc, sTo.line);
|
|
var singleVLine = visualLine(fromLine) == visualLine(toLine);
|
|
var leftEnd = drawForLine(sFrom.line, sFrom.ch, singleVLine ? fromLine.text.length + 1 : null).end;
|
|
var rightStart = drawForLine(sTo.line, singleVLine ? 0 : null, sTo.ch).start;
|
|
if (singleVLine) {
|
|
if (leftEnd.top < rightStart.top - 2) {
|
|
add(leftEnd.right, leftEnd.top, null, leftEnd.bottom);
|
|
add(leftSide, rightStart.top, rightStart.left, rightStart.bottom);
|
|
} else {
|
|
add(leftEnd.right, leftEnd.top, rightStart.left - leftEnd.right, leftEnd.bottom);
|
|
}
|
|
}
|
|
if (leftEnd.bottom < rightStart.top)
|
|
{ add(leftSide, leftEnd.bottom, null, rightStart.top); }
|
|
}
|
|
|
|
output.appendChild(fragment);
|
|
}
|
|
|
|
// Cursor-blinking
|
|
function restartBlink(cm) {
|
|
if (!cm.state.focused) { return }
|
|
var display = cm.display;
|
|
clearInterval(display.blinker);
|
|
var on = true;
|
|
display.cursorDiv.style.visibility = "";
|
|
if (cm.options.cursorBlinkRate > 0)
|
|
{ display.blinker = setInterval(function () {
|
|
if (!cm.hasFocus()) { onBlur(cm); }
|
|
display.cursorDiv.style.visibility = (on = !on) ? "" : "hidden";
|
|
}, cm.options.cursorBlinkRate); }
|
|
else if (cm.options.cursorBlinkRate < 0)
|
|
{ display.cursorDiv.style.visibility = "hidden"; }
|
|
}
|
|
|
|
function ensureFocus(cm) {
|
|
if (!cm.hasFocus()) {
|
|
cm.display.input.focus();
|
|
if (!cm.state.focused) { onFocus(cm); }
|
|
}
|
|
}
|
|
|
|
function delayBlurEvent(cm) {
|
|
cm.state.delayingBlurEvent = true;
|
|
setTimeout(function () { if (cm.state.delayingBlurEvent) {
|
|
cm.state.delayingBlurEvent = false;
|
|
if (cm.state.focused) { onBlur(cm); }
|
|
} }, 100);
|
|
}
|
|
|
|
function onFocus(cm, e) {
|
|
if (cm.state.delayingBlurEvent && !cm.state.draggingText) { cm.state.delayingBlurEvent = false; }
|
|
|
|
if (cm.options.readOnly == "nocursor") { return }
|
|
if (!cm.state.focused) {
|
|
signal(cm, "focus", cm, e);
|
|
cm.state.focused = true;
|
|
addClass(cm.display.wrapper, "CodeMirror-focused");
|
|
// This test prevents this from firing when a context
|
|
// menu is closed (since the input reset would kill the
|
|
// select-all detection hack)
|
|
if (!cm.curOp && cm.display.selForContextMenu != cm.doc.sel) {
|
|
cm.display.input.reset();
|
|
if (webkit) { setTimeout(function () { return cm.display.input.reset(true); }, 20); } // Issue #1730
|
|
}
|
|
cm.display.input.receivedFocus();
|
|
}
|
|
restartBlink(cm);
|
|
}
|
|
function onBlur(cm, e) {
|
|
if (cm.state.delayingBlurEvent) { return }
|
|
|
|
if (cm.state.focused) {
|
|
signal(cm, "blur", cm, e);
|
|
cm.state.focused = false;
|
|
rmClass(cm.display.wrapper, "CodeMirror-focused");
|
|
}
|
|
clearInterval(cm.display.blinker);
|
|
setTimeout(function () { if (!cm.state.focused) { cm.display.shift = false; } }, 150);
|
|
}
|
|
|
|
// Read the actual heights of the rendered lines, and update their
|
|
// stored heights to match.
|
|
function updateHeightsInViewport(cm) {
|
|
var display = cm.display;
|
|
var prevBottom = display.lineDiv.offsetTop;
|
|
var viewTop = Math.max(0, display.scroller.getBoundingClientRect().top);
|
|
var oldHeight = display.lineDiv.getBoundingClientRect().top;
|
|
var mustScroll = 0;
|
|
for (var i = 0; i < display.view.length; i++) {
|
|
var cur = display.view[i], wrapping = cm.options.lineWrapping;
|
|
var height = (void 0), width = 0;
|
|
if (cur.hidden) { continue }
|
|
oldHeight += cur.line.height;
|
|
if (ie && ie_version < 8) {
|
|
var bot = cur.node.offsetTop + cur.node.offsetHeight;
|
|
height = bot - prevBottom;
|
|
prevBottom = bot;
|
|
} else {
|
|
var box = cur.node.getBoundingClientRect();
|
|
height = box.bottom - box.top;
|
|
// Check that lines don't extend past the right of the current
|
|
// editor width
|
|
if (!wrapping && cur.text.firstChild)
|
|
{ width = cur.text.firstChild.getBoundingClientRect().right - box.left - 1; }
|
|
}
|
|
var diff = cur.line.height - height;
|
|
if (diff > .005 || diff < -.005) {
|
|
if (oldHeight < viewTop) { mustScroll -= diff; }
|
|
updateLineHeight(cur.line, height);
|
|
updateWidgetHeight(cur.line);
|
|
if (cur.rest) { for (var j = 0; j < cur.rest.length; j++)
|
|
{ updateWidgetHeight(cur.rest[j]); } }
|
|
}
|
|
if (width > cm.display.sizerWidth) {
|
|
var chWidth = Math.ceil(width / charWidth(cm.display));
|
|
if (chWidth > cm.display.maxLineLength) {
|
|
cm.display.maxLineLength = chWidth;
|
|
cm.display.maxLine = cur.line;
|
|
cm.display.maxLineChanged = true;
|
|
}
|
|
}
|
|
}
|
|
if (Math.abs(mustScroll) > 2) { display.scroller.scrollTop += mustScroll; }
|
|
}
|
|
|
|
// Read and store the height of line widgets associated with the
|
|
// given line.
|
|
function updateWidgetHeight(line) {
|
|
if (line.widgets) { for (var i = 0; i < line.widgets.length; ++i) {
|
|
var w = line.widgets[i], parent = w.node.parentNode;
|
|
if (parent) { w.height = parent.offsetHeight; }
|
|
} }
|
|
}
|
|
|
|
// Compute the lines that are visible in a given viewport (defaults
|
|
// the the current scroll position). viewport may contain top,
|
|
// height, and ensure (see op.scrollToPos) properties.
|
|
function visibleLines(display, doc, viewport) {
|
|
var top = viewport && viewport.top != null ? Math.max(0, viewport.top) : display.scroller.scrollTop;
|
|
top = Math.floor(top - paddingTop(display));
|
|
var bottom = viewport && viewport.bottom != null ? viewport.bottom : top + display.wrapper.clientHeight;
|
|
|
|
var from = lineAtHeight(doc, top), to = lineAtHeight(doc, bottom);
|
|
// Ensure is a {from: {line, ch}, to: {line, ch}} object, and
|
|
// forces those lines into the viewport (if possible).
|
|
if (viewport && viewport.ensure) {
|
|
var ensureFrom = viewport.ensure.from.line, ensureTo = viewport.ensure.to.line;
|
|
if (ensureFrom < from) {
|
|
from = ensureFrom;
|
|
to = lineAtHeight(doc, heightAtLine(getLine(doc, ensureFrom)) + display.wrapper.clientHeight);
|
|
} else if (Math.min(ensureTo, doc.lastLine()) >= to) {
|
|
from = lineAtHeight(doc, heightAtLine(getLine(doc, ensureTo)) - display.wrapper.clientHeight);
|
|
to = ensureTo;
|
|
}
|
|
}
|
|
return {from: from, to: Math.max(to, from + 1)}
|
|
}
|
|
|
|
// SCROLLING THINGS INTO VIEW
|
|
|
|
// If an editor sits on the top or bottom of the window, partially
|
|
// scrolled out of view, this ensures that the cursor is visible.
|
|
function maybeScrollWindow(cm, rect) {
|
|
if (signalDOMEvent(cm, "scrollCursorIntoView")) { return }
|
|
|
|
var display = cm.display, box = display.sizer.getBoundingClientRect(), doScroll = null;
|
|
if (rect.top + box.top < 0) { doScroll = true; }
|
|
else if (rect.bottom + box.top > (window.innerHeight || document.documentElement.clientHeight)) { doScroll = false; }
|
|
if (doScroll != null && !phantom) {
|
|
var scrollNode = elt("div", "\u200b", null, ("position: absolute;\n top: " + (rect.top - display.viewOffset - paddingTop(cm.display)) + "px;\n height: " + (rect.bottom - rect.top + scrollGap(cm) + display.barHeight) + "px;\n left: " + (rect.left) + "px; width: " + (Math.max(2, rect.right - rect.left)) + "px;"));
|
|
cm.display.lineSpace.appendChild(scrollNode);
|
|
scrollNode.scrollIntoView(doScroll);
|
|
cm.display.lineSpace.removeChild(scrollNode);
|
|
}
|
|
}
|
|
|
|
// Scroll a given position into view (immediately), verifying that
|
|
// it actually became visible (as line heights are accurately
|
|
// measured, the position of something may 'drift' during drawing).
|
|
function scrollPosIntoView(cm, pos, end, margin) {
|
|
if (margin == null) { margin = 0; }
|
|
var rect;
|
|
if (!cm.options.lineWrapping && pos == end) {
|
|
// Set pos and end to the cursor positions around the character pos sticks to
|
|
// If pos.sticky == "before", that is around pos.ch - 1, otherwise around pos.ch
|
|
// If pos == Pos(_, 0, "before"), pos and end are unchanged
|
|
end = pos.sticky == "before" ? Pos(pos.line, pos.ch + 1, "before") : pos;
|
|
pos = pos.ch ? Pos(pos.line, pos.sticky == "before" ? pos.ch - 1 : pos.ch, "after") : pos;
|
|
}
|
|
for (var limit = 0; limit < 5; limit++) {
|
|
var changed = false;
|
|
var coords = cursorCoords(cm, pos);
|
|
var endCoords = !end || end == pos ? coords : cursorCoords(cm, end);
|
|
rect = {left: Math.min(coords.left, endCoords.left),
|
|
top: Math.min(coords.top, endCoords.top) - margin,
|
|
right: Math.max(coords.left, endCoords.left),
|
|
bottom: Math.max(coords.bottom, endCoords.bottom) + margin};
|
|
var scrollPos = calculateScrollPos(cm, rect);
|
|
var startTop = cm.doc.scrollTop, startLeft = cm.doc.scrollLeft;
|
|
if (scrollPos.scrollTop != null) {
|
|
updateScrollTop(cm, scrollPos.scrollTop);
|
|
if (Math.abs(cm.doc.scrollTop - startTop) > 1) { changed = true; }
|
|
}
|
|
if (scrollPos.scrollLeft != null) {
|
|
setScrollLeft(cm, scrollPos.scrollLeft);
|
|
if (Math.abs(cm.doc.scrollLeft - startLeft) > 1) { changed = true; }
|
|
}
|
|
if (!changed) { break }
|
|
}
|
|
return rect
|
|
}
|
|
|
|
// Scroll a given set of coordinates into view (immediately).
|
|
function scrollIntoView(cm, rect) {
|
|
var scrollPos = calculateScrollPos(cm, rect);
|
|
if (scrollPos.scrollTop != null) { updateScrollTop(cm, scrollPos.scrollTop); }
|
|
if (scrollPos.scrollLeft != null) { setScrollLeft(cm, scrollPos.scrollLeft); }
|
|
}
|
|
|
|
// Calculate a new scroll position needed to scroll the given
|
|
// rectangle into view. Returns an object with scrollTop and
|
|
// scrollLeft properties. When these are undefined, the
|
|
// vertical/horizontal position does not need to be adjusted.
|
|
function calculateScrollPos(cm, rect) {
|
|
var display = cm.display, snapMargin = textHeight(cm.display);
|
|
if (rect.top < 0) { rect.top = 0; }
|
|
var screentop = cm.curOp && cm.curOp.scrollTop != null ? cm.curOp.scrollTop : display.scroller.scrollTop;
|
|
var screen = displayHeight(cm), result = {};
|
|
if (rect.bottom - rect.top > screen) { rect.bottom = rect.top + screen; }
|
|
var docBottom = cm.doc.height + paddingVert(display);
|
|
var atTop = rect.top < snapMargin, atBottom = rect.bottom > docBottom - snapMargin;
|
|
if (rect.top < screentop) {
|
|
result.scrollTop = atTop ? 0 : rect.top;
|
|
} else if (rect.bottom > screentop + screen) {
|
|
var newTop = Math.min(rect.top, (atBottom ? docBottom : rect.bottom) - screen);
|
|
if (newTop != screentop) { result.scrollTop = newTop; }
|
|
}
|
|
|
|
var gutterSpace = cm.options.fixedGutter ? 0 : display.gutters.offsetWidth;
|
|
var screenleft = cm.curOp && cm.curOp.scrollLeft != null ? cm.curOp.scrollLeft : display.scroller.scrollLeft - gutterSpace;
|
|
var screenw = displayWidth(cm) - display.gutters.offsetWidth;
|
|
var tooWide = rect.right - rect.left > screenw;
|
|
if (tooWide) { rect.right = rect.left + screenw; }
|
|
if (rect.left < 10)
|
|
{ result.scrollLeft = 0; }
|
|
else if (rect.left < screenleft)
|
|
{ result.scrollLeft = Math.max(0, rect.left + gutterSpace - (tooWide ? 0 : 10)); }
|
|
else if (rect.right > screenw + screenleft - 3)
|
|
{ result.scrollLeft = rect.right + (tooWide ? 0 : 10) - screenw; }
|
|
return result
|
|
}
|
|
|
|
// Store a relative adjustment to the scroll position in the current
|
|
// operation (to be applied when the operation finishes).
|
|
function addToScrollTop(cm, top) {
|
|
if (top == null) { return }
|
|
resolveScrollToPos(cm);
|
|
cm.curOp.scrollTop = (cm.curOp.scrollTop == null ? cm.doc.scrollTop : cm.curOp.scrollTop) + top;
|
|
}
|
|
|
|
// Make sure that at the end of the operation the current cursor is
|
|
// shown.
|
|
function ensureCursorVisible(cm) {
|
|
resolveScrollToPos(cm);
|
|
var cur = cm.getCursor();
|
|
cm.curOp.scrollToPos = {from: cur, to: cur, margin: cm.options.cursorScrollMargin};
|
|
}
|
|
|
|
function scrollToCoords(cm, x, y) {
|
|
if (x != null || y != null) { resolveScrollToPos(cm); }
|
|
if (x != null) { cm.curOp.scrollLeft = x; }
|
|
if (y != null) { cm.curOp.scrollTop = y; }
|
|
}
|
|
|
|
function scrollToRange(cm, range) {
|
|
resolveScrollToPos(cm);
|
|
cm.curOp.scrollToPos = range;
|
|
}
|
|
|
|
// When an operation has its scrollToPos property set, and another
|
|
// scroll action is applied before the end of the operation, this
|
|
// 'simulates' scrolling that position into view in a cheap way, so
|
|
// that the effect of intermediate scroll commands is not ignored.
|
|
function resolveScrollToPos(cm) {
|
|
var range = cm.curOp.scrollToPos;
|
|
if (range) {
|
|
cm.curOp.scrollToPos = null;
|
|
var from = estimateCoords(cm, range.from), to = estimateCoords(cm, range.to);
|
|
scrollToCoordsRange(cm, from, to, range.margin);
|
|
}
|
|
}
|
|
|
|
function scrollToCoordsRange(cm, from, to, margin) {
|
|
var sPos = calculateScrollPos(cm, {
|
|
left: Math.min(from.left, to.left),
|
|
top: Math.min(from.top, to.top) - margin,
|
|
right: Math.max(from.right, to.right),
|
|
bottom: Math.max(from.bottom, to.bottom) + margin
|
|
});
|
|
scrollToCoords(cm, sPos.scrollLeft, sPos.scrollTop);
|
|
}
|
|
|
|
// Sync the scrollable area and scrollbars, ensure the viewport
|
|
// covers the visible area.
|
|
function updateScrollTop(cm, val) {
|
|
if (Math.abs(cm.doc.scrollTop - val) < 2) { return }
|
|
if (!gecko) { updateDisplaySimple(cm, {top: val}); }
|
|
setScrollTop(cm, val, true);
|
|
if (gecko) { updateDisplaySimple(cm); }
|
|
startWorker(cm, 100);
|
|
}
|
|
|
|
function setScrollTop(cm, val, forceScroll) {
|
|
val = Math.max(0, Math.min(cm.display.scroller.scrollHeight - cm.display.scroller.clientHeight, val));
|
|
if (cm.display.scroller.scrollTop == val && !forceScroll) { return }
|
|
cm.doc.scrollTop = val;
|
|
cm.display.scrollbars.setScrollTop(val);
|
|
if (cm.display.scroller.scrollTop != val) { cm.display.scroller.scrollTop = val; }
|
|
}
|
|
|
|
// Sync scroller and scrollbar, ensure the gutter elements are
|
|
// aligned.
|
|
function setScrollLeft(cm, val, isScroller, forceScroll) {
|
|
val = Math.max(0, Math.min(val, cm.display.scroller.scrollWidth - cm.display.scroller.clientWidth));
|
|
if ((isScroller ? val == cm.doc.scrollLeft : Math.abs(cm.doc.scrollLeft - val) < 2) && !forceScroll) { return }
|
|
cm.doc.scrollLeft = val;
|
|
alignHorizontally(cm);
|
|
if (cm.display.scroller.scrollLeft != val) { cm.display.scroller.scrollLeft = val; }
|
|
cm.display.scrollbars.setScrollLeft(val);
|
|
}
|
|
|
|
// SCROLLBARS
|
|
|
|
// Prepare DOM reads needed to update the scrollbars. Done in one
|
|
// shot to minimize update/measure roundtrips.
|
|
function measureForScrollbars(cm) {
|
|
var d = cm.display, gutterW = d.gutters.offsetWidth;
|
|
var docH = Math.round(cm.doc.height + paddingVert(cm.display));
|
|
return {
|
|
clientHeight: d.scroller.clientHeight,
|
|
viewHeight: d.wrapper.clientHeight,
|
|
scrollWidth: d.scroller.scrollWidth, clientWidth: d.scroller.clientWidth,
|
|
viewWidth: d.wrapper.clientWidth,
|
|
barLeft: cm.options.fixedGutter ? gutterW : 0,
|
|
docHeight: docH,
|
|
scrollHeight: docH + scrollGap(cm) + d.barHeight,
|
|
nativeBarWidth: d.nativeBarWidth,
|
|
gutterWidth: gutterW
|
|
}
|
|
}
|
|
|
|
var NativeScrollbars = function(place, scroll, cm) {
|
|
this.cm = cm;
|
|
var vert = this.vert = elt("div", [elt("div", null, null, "min-width: 1px")], "CodeMirror-vscrollbar");
|
|
var horiz = this.horiz = elt("div", [elt("div", null, null, "height: 100%; min-height: 1px")], "CodeMirror-hscrollbar");
|
|
vert.tabIndex = horiz.tabIndex = -1;
|
|
place(vert); place(horiz);
|
|
|
|
on(vert, "scroll", function () {
|
|
if (vert.clientHeight) { scroll(vert.scrollTop, "vertical"); }
|
|
});
|
|
on(horiz, "scroll", function () {
|
|
if (horiz.clientWidth) { scroll(horiz.scrollLeft, "horizontal"); }
|
|
});
|
|
|
|
this.checkedZeroWidth = false;
|
|
// Need to set a minimum width to see the scrollbar on IE7 (but must not set it on IE8).
|
|
if (ie && ie_version < 8) { this.horiz.style.minHeight = this.vert.style.minWidth = "18px"; }
|
|
};
|
|
|
|
NativeScrollbars.prototype.update = function (measure) {
|
|
var needsH = measure.scrollWidth > measure.clientWidth + 1;
|
|
var needsV = measure.scrollHeight > measure.clientHeight + 1;
|
|
var sWidth = measure.nativeBarWidth;
|
|
|
|
if (needsV) {
|
|
this.vert.style.display = "block";
|
|
this.vert.style.bottom = needsH ? sWidth + "px" : "0";
|
|
var totalHeight = measure.viewHeight - (needsH ? sWidth : 0);
|
|
// A bug in IE8 can cause this value to be negative, so guard it.
|
|
this.vert.firstChild.style.height =
|
|
Math.max(0, measure.scrollHeight - measure.clientHeight + totalHeight) + "px";
|
|
} else {
|
|
this.vert.scrollTop = 0;
|
|
this.vert.style.display = "";
|
|
this.vert.firstChild.style.height = "0";
|
|
}
|
|
|
|
if (needsH) {
|
|
this.horiz.style.display = "block";
|
|
this.horiz.style.right = needsV ? sWidth + "px" : "0";
|
|
this.horiz.style.left = measure.barLeft + "px";
|
|
var totalWidth = measure.viewWidth - measure.barLeft - (needsV ? sWidth : 0);
|
|
this.horiz.firstChild.style.width =
|
|
Math.max(0, measure.scrollWidth - measure.clientWidth + totalWidth) + "px";
|
|
} else {
|
|
this.horiz.style.display = "";
|
|
this.horiz.firstChild.style.width = "0";
|
|
}
|
|
|
|
if (!this.checkedZeroWidth && measure.clientHeight > 0) {
|
|
if (sWidth == 0) { this.zeroWidthHack(); }
|
|
this.checkedZeroWidth = true;
|
|
}
|
|
|
|
return {right: needsV ? sWidth : 0, bottom: needsH ? sWidth : 0}
|
|
};
|
|
|
|
NativeScrollbars.prototype.setScrollLeft = function (pos) {
|
|
if (this.horiz.scrollLeft != pos) { this.horiz.scrollLeft = pos; }
|
|
if (this.disableHoriz) { this.enableZeroWidthBar(this.horiz, this.disableHoriz, "horiz"); }
|
|
};
|
|
|
|
NativeScrollbars.prototype.setScrollTop = function (pos) {
|
|
if (this.vert.scrollTop != pos) { this.vert.scrollTop = pos; }
|
|
if (this.disableVert) { this.enableZeroWidthBar(this.vert, this.disableVert, "vert"); }
|
|
};
|
|
|
|
NativeScrollbars.prototype.zeroWidthHack = function () {
|
|
var w = mac && !mac_geMountainLion ? "12px" : "18px";
|
|
this.horiz.style.height = this.vert.style.width = w;
|
|
this.horiz.style.pointerEvents = this.vert.style.pointerEvents = "none";
|
|
this.disableHoriz = new Delayed;
|
|
this.disableVert = new Delayed;
|
|
};
|
|
|
|
NativeScrollbars.prototype.enableZeroWidthBar = function (bar, delay, type) {
|
|
bar.style.pointerEvents = "auto";
|
|
function maybeDisable() {
|
|
// To find out whether the scrollbar is still visible, we
|
|
// check whether the element under the pixel in the bottom
|
|
// right corner of the scrollbar box is the scrollbar box
|
|
// itself (when the bar is still visible) or its filler child
|
|
// (when the bar is hidden). If it is still visible, we keep
|
|
// it enabled, if it's hidden, we disable pointer events.
|
|
var box = bar.getBoundingClientRect();
|
|
var elt = type == "vert" ? document.elementFromPoint(box.right - 1, (box.top + box.bottom) / 2)
|
|
: document.elementFromPoint((box.right + box.left) / 2, box.bottom - 1);
|
|
if (elt != bar) { bar.style.pointerEvents = "none"; }
|
|
else { delay.set(1000, maybeDisable); }
|
|
}
|
|
delay.set(1000, maybeDisable);
|
|
};
|
|
|
|
NativeScrollbars.prototype.clear = function () {
|
|
var parent = this.horiz.parentNode;
|
|
parent.removeChild(this.horiz);
|
|
parent.removeChild(this.vert);
|
|
};
|
|
|
|
var NullScrollbars = function () {};
|
|
|
|
NullScrollbars.prototype.update = function () { return {bottom: 0, right: 0} };
|
|
NullScrollbars.prototype.setScrollLeft = function () {};
|
|
NullScrollbars.prototype.setScrollTop = function () {};
|
|
NullScrollbars.prototype.clear = function () {};
|
|
|
|
function updateScrollbars(cm, measure) {
|
|
if (!measure) { measure = measureForScrollbars(cm); }
|
|
var startWidth = cm.display.barWidth, startHeight = cm.display.barHeight;
|
|
updateScrollbarsInner(cm, measure);
|
|
for (var i = 0; i < 4 && startWidth != cm.display.barWidth || startHeight != cm.display.barHeight; i++) {
|
|
if (startWidth != cm.display.barWidth && cm.options.lineWrapping)
|
|
{ updateHeightsInViewport(cm); }
|
|
updateScrollbarsInner(cm, measureForScrollbars(cm));
|
|
startWidth = cm.display.barWidth; startHeight = cm.display.barHeight;
|
|
}
|
|
}
|
|
|
|
// Re-synchronize the fake scrollbars with the actual size of the
|
|
// content.
|
|
function updateScrollbarsInner(cm, measure) {
|
|
var d = cm.display;
|
|
var sizes = d.scrollbars.update(measure);
|
|
|
|
d.sizer.style.paddingRight = (d.barWidth = sizes.right) + "px";
|
|
d.sizer.style.paddingBottom = (d.barHeight = sizes.bottom) + "px";
|
|
d.heightForcer.style.borderBottom = sizes.bottom + "px solid transparent";
|
|
|
|
if (sizes.right && sizes.bottom) {
|
|
d.scrollbarFiller.style.display = "block";
|
|
d.scrollbarFiller.style.height = sizes.bottom + "px";
|
|
d.scrollbarFiller.style.width = sizes.right + "px";
|
|
} else { d.scrollbarFiller.style.display = ""; }
|
|
if (sizes.bottom && cm.options.coverGutterNextToScrollbar && cm.options.fixedGutter) {
|
|
d.gutterFiller.style.display = "block";
|
|
d.gutterFiller.style.height = sizes.bottom + "px";
|
|
d.gutterFiller.style.width = measure.gutterWidth + "px";
|
|
} else { d.gutterFiller.style.display = ""; }
|
|
}
|
|
|
|
var scrollbarModel = {"native": NativeScrollbars, "null": NullScrollbars};
|
|
|
|
function initScrollbars(cm) {
|
|
if (cm.display.scrollbars) {
|
|
cm.display.scrollbars.clear();
|
|
if (cm.display.scrollbars.addClass)
|
|
{ rmClass(cm.display.wrapper, cm.display.scrollbars.addClass); }
|
|
}
|
|
|
|
cm.display.scrollbars = new scrollbarModel[cm.options.scrollbarStyle](function (node) {
|
|
cm.display.wrapper.insertBefore(node, cm.display.scrollbarFiller);
|
|
// Prevent clicks in the scrollbars from killing focus
|
|
on(node, "mousedown", function () {
|
|
if (cm.state.focused) { setTimeout(function () { return cm.display.input.focus(); }, 0); }
|
|
});
|
|
node.setAttribute("cm-not-content", "true");
|
|
}, function (pos, axis) {
|
|
if (axis == "horizontal") { setScrollLeft(cm, pos); }
|
|
else { updateScrollTop(cm, pos); }
|
|
}, cm);
|
|
if (cm.display.scrollbars.addClass)
|
|
{ addClass(cm.display.wrapper, cm.display.scrollbars.addClass); }
|
|
}
|
|
|
|
// Operations are used to wrap a series of changes to the editor
|
|
// state in such a way that each change won't have to update the
|
|
// cursor and display (which would be awkward, slow, and
|
|
// error-prone). Instead, display updates are batched and then all
|
|
// combined and executed at once.
|
|
|
|
var nextOpId = 0;
|
|
// Start a new operation.
|
|
function startOperation(cm) {
|
|
cm.curOp = {
|
|
cm: cm,
|
|
viewChanged: false, // Flag that indicates that lines might need to be redrawn
|
|
startHeight: cm.doc.height, // Used to detect need to update scrollbar
|
|
forceUpdate: false, // Used to force a redraw
|
|
updateInput: 0, // Whether to reset the input textarea
|
|
typing: false, // Whether this reset should be careful to leave existing text (for compositing)
|
|
changeObjs: null, // Accumulated changes, for firing change events
|
|
cursorActivityHandlers: null, // Set of handlers to fire cursorActivity on
|
|
cursorActivityCalled: 0, // Tracks which cursorActivity handlers have been called already
|
|
selectionChanged: false, // Whether the selection needs to be redrawn
|
|
updateMaxLine: false, // Set when the widest line needs to be determined anew
|
|
scrollLeft: null, scrollTop: null, // Intermediate scroll position, not pushed to DOM yet
|
|
scrollToPos: null, // Used to scroll to a specific position
|
|
focus: false,
|
|
id: ++nextOpId, // Unique ID
|
|
markArrays: null // Used by addMarkedSpan
|
|
};
|
|
pushOperation(cm.curOp);
|
|
}
|
|
|
|
// Finish an operation, updating the display and signalling delayed events
|
|
function endOperation(cm) {
|
|
var op = cm.curOp;
|
|
if (op) { finishOperation(op, function (group) {
|
|
for (var i = 0; i < group.ops.length; i++)
|
|
{ group.ops[i].cm.curOp = null; }
|
|
endOperations(group);
|
|
}); }
|
|
}
|
|
|
|
// The DOM updates done when an operation finishes are batched so
|
|
// that the minimum number of relayouts are required.
|
|
function endOperations(group) {
|
|
var ops = group.ops;
|
|
for (var i = 0; i < ops.length; i++) // Read DOM
|
|
{ endOperation_R1(ops[i]); }
|
|
for (var i$1 = 0; i$1 < ops.length; i$1++) // Write DOM (maybe)
|
|
{ endOperation_W1(ops[i$1]); }
|
|
for (var i$2 = 0; i$2 < ops.length; i$2++) // Read DOM
|
|
{ endOperation_R2(ops[i$2]); }
|
|
for (var i$3 = 0; i$3 < ops.length; i$3++) // Write DOM (maybe)
|
|
{ endOperation_W2(ops[i$3]); }
|
|
for (var i$4 = 0; i$4 < ops.length; i$4++) // Read DOM
|
|
{ endOperation_finish(ops[i$4]); }
|
|
}
|
|
|
|
function endOperation_R1(op) {
|
|
var cm = op.cm, display = cm.display;
|
|
maybeClipScrollbars(cm);
|
|
if (op.updateMaxLine) { findMaxLine(cm); }
|
|
|
|
op.mustUpdate = op.viewChanged || op.forceUpdate || op.scrollTop != null ||
|
|
op.scrollToPos && (op.scrollToPos.from.line < display.viewFrom ||
|
|
op.scrollToPos.to.line >= display.viewTo) ||
|
|
display.maxLineChanged && cm.options.lineWrapping;
|
|
op.update = op.mustUpdate &&
|
|
new DisplayUpdate(cm, op.mustUpdate && {top: op.scrollTop, ensure: op.scrollToPos}, op.forceUpdate);
|
|
}
|
|
|
|
function endOperation_W1(op) {
|
|
op.updatedDisplay = op.mustUpdate && updateDisplayIfNeeded(op.cm, op.update);
|
|
}
|
|
|
|
function endOperation_R2(op) {
|
|
var cm = op.cm, display = cm.display;
|
|
if (op.updatedDisplay) { updateHeightsInViewport(cm); }
|
|
|
|
op.barMeasure = measureForScrollbars(cm);
|
|
|
|
// If the max line changed since it was last measured, measure it,
|
|
// and ensure the document's width matches it.
|
|
// updateDisplay_W2 will use these properties to do the actual resizing
|
|
if (display.maxLineChanged && !cm.options.lineWrapping) {
|
|
op.adjustWidthTo = measureChar(cm, display.maxLine, display.maxLine.text.length).left + 3;
|
|
cm.display.sizerWidth = op.adjustWidthTo;
|
|
op.barMeasure.scrollWidth =
|
|
Math.max(display.scroller.clientWidth, display.sizer.offsetLeft + op.adjustWidthTo + scrollGap(cm) + cm.display.barWidth);
|
|
op.maxScrollLeft = Math.max(0, display.sizer.offsetLeft + op.adjustWidthTo - displayWidth(cm));
|
|
}
|
|
|
|
if (op.updatedDisplay || op.selectionChanged)
|
|
{ op.preparedSelection = display.input.prepareSelection(); }
|
|
}
|
|
|
|
function endOperation_W2(op) {
|
|
var cm = op.cm;
|
|
|
|
if (op.adjustWidthTo != null) {
|
|
cm.display.sizer.style.minWidth = op.adjustWidthTo + "px";
|
|
if (op.maxScrollLeft < cm.doc.scrollLeft)
|
|
{ setScrollLeft(cm, Math.min(cm.display.scroller.scrollLeft, op.maxScrollLeft), true); }
|
|
cm.display.maxLineChanged = false;
|
|
}
|
|
|
|
var takeFocus = op.focus && op.focus == activeElt();
|
|
if (op.preparedSelection)
|
|
{ cm.display.input.showSelection(op.preparedSelection, takeFocus); }
|
|
if (op.updatedDisplay || op.startHeight != cm.doc.height)
|
|
{ updateScrollbars(cm, op.barMeasure); }
|
|
if (op.updatedDisplay)
|
|
{ setDocumentHeight(cm, op.barMeasure); }
|
|
|
|
if (op.selectionChanged) { restartBlink(cm); }
|
|
|
|
if (cm.state.focused && op.updateInput)
|
|
{ cm.display.input.reset(op.typing); }
|
|
if (takeFocus) { ensureFocus(op.cm); }
|
|
}
|
|
|
|
function endOperation_finish(op) {
|
|
var cm = op.cm, display = cm.display, doc = cm.doc;
|
|
|
|
if (op.updatedDisplay) { postUpdateDisplay(cm, op.update); }
|
|
|
|
// Abort mouse wheel delta measurement, when scrolling explicitly
|
|
if (display.wheelStartX != null && (op.scrollTop != null || op.scrollLeft != null || op.scrollToPos))
|
|
{ display.wheelStartX = display.wheelStartY = null; }
|
|
|
|
// Propagate the scroll position to the actual DOM scroller
|
|
if (op.scrollTop != null) { setScrollTop(cm, op.scrollTop, op.forceScroll); }
|
|
|
|
if (op.scrollLeft != null) { setScrollLeft(cm, op.scrollLeft, true, true); }
|
|
// If we need to scroll a specific position into view, do so.
|
|
if (op.scrollToPos) {
|
|
var rect = scrollPosIntoView(cm, clipPos(doc, op.scrollToPos.from),
|
|
clipPos(doc, op.scrollToPos.to), op.scrollToPos.margin);
|
|
maybeScrollWindow(cm, rect);
|
|
}
|
|
|
|
// Fire events for markers that are hidden/unidden by editing or
|
|
// undoing
|
|
var hidden = op.maybeHiddenMarkers, unhidden = op.maybeUnhiddenMarkers;
|
|
if (hidden) { for (var i = 0; i < hidden.length; ++i)
|
|
{ if (!hidden[i].lines.length) { signal(hidden[i], "hide"); } } }
|
|
if (unhidden) { for (var i$1 = 0; i$1 < unhidden.length; ++i$1)
|
|
{ if (unhidden[i$1].lines.length) { signal(unhidden[i$1], "unhide"); } } }
|
|
|
|
if (display.wrapper.offsetHeight)
|
|
{ doc.scrollTop = cm.display.scroller.scrollTop; }
|
|
|
|
// Fire change events, and delayed event handlers
|
|
if (op.changeObjs)
|
|
{ signal(cm, "changes", cm, op.changeObjs); }
|
|
if (op.update)
|
|
{ op.update.finish(); }
|
|
}
|
|
|
|
// Run the given function in an operation
|
|
function runInOp(cm, f) {
|
|
if (cm.curOp) { return f() }
|
|
startOperation(cm);
|
|
try { return f() }
|
|
finally { endOperation(cm); }
|
|
}
|
|
// Wraps a function in an operation. Returns the wrapped function.
|
|
function operation(cm, f) {
|
|
return function() {
|
|
if (cm.curOp) { return f.apply(cm, arguments) }
|
|
startOperation(cm);
|
|
try { return f.apply(cm, arguments) }
|
|
finally { endOperation(cm); }
|
|
}
|
|
}
|
|
// Used to add methods to editor and doc instances, wrapping them in
|
|
// operations.
|
|
function methodOp(f) {
|
|
return function() {
|
|
if (this.curOp) { return f.apply(this, arguments) }
|
|
startOperation(this);
|
|
try { return f.apply(this, arguments) }
|
|
finally { endOperation(this); }
|
|
}
|
|
}
|
|
function docMethodOp(f) {
|
|
return function() {
|
|
var cm = this.cm;
|
|
if (!cm || cm.curOp) { return f.apply(this, arguments) }
|
|
startOperation(cm);
|
|
try { return f.apply(this, arguments) }
|
|
finally { endOperation(cm); }
|
|
}
|
|
}
|
|
|
|
// HIGHLIGHT WORKER
|
|
|
|
function startWorker(cm, time) {
|
|
if (cm.doc.highlightFrontier < cm.display.viewTo)
|
|
{ cm.state.highlight.set(time, bind(highlightWorker, cm)); }
|
|
}
|
|
|
|
function highlightWorker(cm) {
|
|
var doc = cm.doc;
|
|
if (doc.highlightFrontier >= cm.display.viewTo) { return }
|
|
var end = +new Date + cm.options.workTime;
|
|
var context = getContextBefore(cm, doc.highlightFrontier);
|
|
var changedLines = [];
|
|
|
|
doc.iter(context.line, Math.min(doc.first + doc.size, cm.display.viewTo + 500), function (line) {
|
|
if (context.line >= cm.display.viewFrom) { // Visible
|
|
var oldStyles = line.styles;
|
|
var resetState = line.text.length > cm.options.maxHighlightLength ? copyState(doc.mode, context.state) : null;
|
|
var highlighted = highlightLine(cm, line, context, true);
|
|
if (resetState) { context.state = resetState; }
|
|
line.styles = highlighted.styles;
|
|
var oldCls = line.styleClasses, newCls = highlighted.classes;
|
|
if (newCls) { line.styleClasses = newCls; }
|
|
else if (oldCls) { line.styleClasses = null; }
|
|
var ischange = !oldStyles || oldStyles.length != line.styles.length ||
|
|
oldCls != newCls && (!oldCls || !newCls || oldCls.bgClass != newCls.bgClass || oldCls.textClass != newCls.textClass);
|
|
for (var i = 0; !ischange && i < oldStyles.length; ++i) { ischange = oldStyles[i] != line.styles[i]; }
|
|
if (ischange) { changedLines.push(context.line); }
|
|
line.stateAfter = context.save();
|
|
context.nextLine();
|
|
} else {
|
|
if (line.text.length <= cm.options.maxHighlightLength)
|
|
{ processLine(cm, line.text, context); }
|
|
line.stateAfter = context.line % 5 == 0 ? context.save() : null;
|
|
context.nextLine();
|
|
}
|
|
if (+new Date > end) {
|
|
startWorker(cm, cm.options.workDelay);
|
|
return true
|
|
}
|
|
});
|
|
doc.highlightFrontier = context.line;
|
|
doc.modeFrontier = Math.max(doc.modeFrontier, context.line);
|
|
if (changedLines.length) { runInOp(cm, function () {
|
|
for (var i = 0; i < changedLines.length; i++)
|
|
{ regLineChange(cm, changedLines[i], "text"); }
|
|
}); }
|
|
}
|
|
|
|
// DISPLAY DRAWING
|
|
|
|
var DisplayUpdate = function(cm, viewport, force) {
|
|
var display = cm.display;
|
|
|
|
this.viewport = viewport;
|
|
// Store some values that we'll need later (but don't want to force a relayout for)
|
|
this.visible = visibleLines(display, cm.doc, viewport);
|
|
this.editorIsHidden = !display.wrapper.offsetWidth;
|
|
this.wrapperHeight = display.wrapper.clientHeight;
|
|
this.wrapperWidth = display.wrapper.clientWidth;
|
|
this.oldDisplayWidth = displayWidth(cm);
|
|
this.force = force;
|
|
this.dims = getDimensions(cm);
|
|
this.events = [];
|
|
};
|
|
|
|
DisplayUpdate.prototype.signal = function (emitter, type) {
|
|
if (hasHandler(emitter, type))
|
|
{ this.events.push(arguments); }
|
|
};
|
|
DisplayUpdate.prototype.finish = function () {
|
|
for (var i = 0; i < this.events.length; i++)
|
|
{ signal.apply(null, this.events[i]); }
|
|
};
|
|
|
|
function maybeClipScrollbars(cm) {
|
|
var display = cm.display;
|
|
if (!display.scrollbarsClipped && display.scroller.offsetWidth) {
|
|
display.nativeBarWidth = display.scroller.offsetWidth - display.scroller.clientWidth;
|
|
display.heightForcer.style.height = scrollGap(cm) + "px";
|
|
display.sizer.style.marginBottom = -display.nativeBarWidth + "px";
|
|
display.sizer.style.borderRightWidth = scrollGap(cm) + "px";
|
|
display.scrollbarsClipped = true;
|
|
}
|
|
}
|
|
|
|
function selectionSnapshot(cm) {
|
|
if (cm.hasFocus()) { return null }
|
|
var active = activeElt();
|
|
if (!active || !contains(cm.display.lineDiv, active)) { return null }
|
|
var result = {activeElt: active};
|
|
if (window.getSelection) {
|
|
var sel = window.getSelection();
|
|
if (sel.anchorNode && sel.extend && contains(cm.display.lineDiv, sel.anchorNode)) {
|
|
result.anchorNode = sel.anchorNode;
|
|
result.anchorOffset = sel.anchorOffset;
|
|
result.focusNode = sel.focusNode;
|
|
result.focusOffset = sel.focusOffset;
|
|
}
|
|
}
|
|
return result
|
|
}
|
|
|
|
function restoreSelection(snapshot) {
|
|
if (!snapshot || !snapshot.activeElt || snapshot.activeElt == activeElt()) { return }
|
|
snapshot.activeElt.focus();
|
|
if (!/^(INPUT|TEXTAREA)$/.test(snapshot.activeElt.nodeName) &&
|
|
snapshot.anchorNode && contains(document.body, snapshot.anchorNode) && contains(document.body, snapshot.focusNode)) {
|
|
var sel = window.getSelection(), range = document.createRange();
|
|
range.setEnd(snapshot.anchorNode, snapshot.anchorOffset);
|
|
range.collapse(false);
|
|
sel.removeAllRanges();
|
|
sel.addRange(range);
|
|
sel.extend(snapshot.focusNode, snapshot.focusOffset);
|
|
}
|
|
}
|
|
|
|
// Does the actual updating of the line display. Bails out
|
|
// (returning false) when there is nothing to be done and forced is
|
|
// false.
|
|
function updateDisplayIfNeeded(cm, update) {
|
|
var display = cm.display, doc = cm.doc;
|
|
|
|
if (update.editorIsHidden) {
|
|
resetView(cm);
|
|
return false
|
|
}
|
|
|
|
// Bail out if the visible area is already rendered and nothing changed.
|
|
if (!update.force &&
|
|
update.visible.from >= display.viewFrom && update.visible.to <= display.viewTo &&
|
|
(display.updateLineNumbers == null || display.updateLineNumbers >= display.viewTo) &&
|
|
display.renderedView == display.view && countDirtyView(cm) == 0)
|
|
{ return false }
|
|
|
|
if (maybeUpdateLineNumberWidth(cm)) {
|
|
resetView(cm);
|
|
update.dims = getDimensions(cm);
|
|
}
|
|
|
|
// Compute a suitable new viewport (from & to)
|
|
var end = doc.first + doc.size;
|
|
var from = Math.max(update.visible.from - cm.options.viewportMargin, doc.first);
|
|
var to = Math.min(end, update.visible.to + cm.options.viewportMargin);
|
|
if (display.viewFrom < from && from - display.viewFrom < 20) { from = Math.max(doc.first, display.viewFrom); }
|
|
if (display.viewTo > to && display.viewTo - to < 20) { to = Math.min(end, display.viewTo); }
|
|
if (sawCollapsedSpans) {
|
|
from = visualLineNo(cm.doc, from);
|
|
to = visualLineEndNo(cm.doc, to);
|
|
}
|
|
|
|
var different = from != display.viewFrom || to != display.viewTo ||
|
|
display.lastWrapHeight != update.wrapperHeight || display.lastWrapWidth != update.wrapperWidth;
|
|
adjustView(cm, from, to);
|
|
|
|
display.viewOffset = heightAtLine(getLine(cm.doc, display.viewFrom));
|
|
// Position the mover div to align with the current scroll position
|
|
cm.display.mover.style.top = display.viewOffset + "px";
|
|
|
|
var toUpdate = countDirtyView(cm);
|
|
if (!different && toUpdate == 0 && !update.force && display.renderedView == display.view &&
|
|
(display.updateLineNumbers == null || display.updateLineNumbers >= display.viewTo))
|
|
{ return false }
|
|
|
|
// For big changes, we hide the enclosing element during the
|
|
// update, since that speeds up the operations on most browsers.
|
|
var selSnapshot = selectionSnapshot(cm);
|
|
if (toUpdate > 4) { display.lineDiv.style.display = "none"; }
|
|
patchDisplay(cm, display.updateLineNumbers, update.dims);
|
|
if (toUpdate > 4) { display.lineDiv.style.display = ""; }
|
|
display.renderedView = display.view;
|
|
// There might have been a widget with a focused element that got
|
|
// hidden or updated, if so re-focus it.
|
|
restoreSelection(selSnapshot);
|
|
|
|
// Prevent selection and cursors from interfering with the scroll
|
|
// width and height.
|
|
removeChildren(display.cursorDiv);
|
|
removeChildren(display.selectionDiv);
|
|
display.gutters.style.height = display.sizer.style.minHeight = 0;
|
|
|
|
if (different) {
|
|
display.lastWrapHeight = update.wrapperHeight;
|
|
display.lastWrapWidth = update.wrapperWidth;
|
|
startWorker(cm, 400);
|
|
}
|
|
|
|
display.updateLineNumbers = null;
|
|
|
|
return true
|
|
}
|
|
|
|
function postUpdateDisplay(cm, update) {
|
|
var viewport = update.viewport;
|
|
|
|
for (var first = true;; first = false) {
|
|
if (!first || !cm.options.lineWrapping || update.oldDisplayWidth == displayWidth(cm)) {
|
|
// Clip forced viewport to actual scrollable area.
|
|
if (viewport && viewport.top != null)
|
|
{ viewport = {top: Math.min(cm.doc.height + paddingVert(cm.display) - displayHeight(cm), viewport.top)}; }
|
|
// Updated line heights might result in the drawn area not
|
|
// actually covering the viewport. Keep looping until it does.
|
|
update.visible = visibleLines(cm.display, cm.doc, viewport);
|
|
if (update.visible.from >= cm.display.viewFrom && update.visible.to <= cm.display.viewTo)
|
|
{ break }
|
|
} else if (first) {
|
|
update.visible = visibleLines(cm.display, cm.doc, viewport);
|
|
}
|
|
if (!updateDisplayIfNeeded(cm, update)) { break }
|
|
updateHeightsInViewport(cm);
|
|
var barMeasure = measureForScrollbars(cm);
|
|
updateSelection(cm);
|
|
updateScrollbars(cm, barMeasure);
|
|
setDocumentHeight(cm, barMeasure);
|
|
update.force = false;
|
|
}
|
|
|
|
update.signal(cm, "update", cm);
|
|
if (cm.display.viewFrom != cm.display.reportedViewFrom || cm.display.viewTo != cm.display.reportedViewTo) {
|
|
update.signal(cm, "viewportChange", cm, cm.display.viewFrom, cm.display.viewTo);
|
|
cm.display.reportedViewFrom = cm.display.viewFrom; cm.display.reportedViewTo = cm.display.viewTo;
|
|
}
|
|
}
|
|
|
|
function updateDisplaySimple(cm, viewport) {
|
|
var update = new DisplayUpdate(cm, viewport);
|
|
if (updateDisplayIfNeeded(cm, update)) {
|
|
updateHeightsInViewport(cm);
|
|
postUpdateDisplay(cm, update);
|
|
var barMeasure = measureForScrollbars(cm);
|
|
updateSelection(cm);
|
|
updateScrollbars(cm, barMeasure);
|
|
setDocumentHeight(cm, barMeasure);
|
|
update.finish();
|
|
}
|
|
}
|
|
|
|
// Sync the actual display DOM structure with display.view, removing
|
|
// nodes for lines that are no longer in view, and creating the ones
|
|
// that are not there yet, and updating the ones that are out of
|
|
// date.
|
|
function patchDisplay(cm, updateNumbersFrom, dims) {
|
|
var display = cm.display, lineNumbers = cm.options.lineNumbers;
|
|
var container = display.lineDiv, cur = container.firstChild;
|
|
|
|
function rm(node) {
|
|
var next = node.nextSibling;
|
|
// Works around a throw-scroll bug in OS X Webkit
|
|
if (webkit && mac && cm.display.currentWheelTarget == node)
|
|
{ node.style.display = "none"; }
|
|
else
|
|
{ node.parentNode.removeChild(node); }
|
|
return next
|
|
}
|
|
|
|
var view = display.view, lineN = display.viewFrom;
|
|
// Loop over the elements in the view, syncing cur (the DOM nodes
|
|
// in display.lineDiv) with the view as we go.
|
|
for (var i = 0; i < view.length; i++) {
|
|
var lineView = view[i];
|
|
if (lineView.hidden) ; else if (!lineView.node || lineView.node.parentNode != container) { // Not drawn yet
|
|
var node = buildLineElement(cm, lineView, lineN, dims);
|
|
container.insertBefore(node, cur);
|
|
} else { // Already drawn
|
|
while (cur != lineView.node) { cur = rm(cur); }
|
|
var updateNumber = lineNumbers && updateNumbersFrom != null &&
|
|
updateNumbersFrom <= lineN && lineView.lineNumber;
|
|
if (lineView.changes) {
|
|
if (indexOf(lineView.changes, "gutter") > -1) { updateNumber = false; }
|
|
updateLineForChanges(cm, lineView, lineN, dims);
|
|
}
|
|
if (updateNumber) {
|
|
removeChildren(lineView.lineNumber);
|
|
lineView.lineNumber.appendChild(document.createTextNode(lineNumberFor(cm.options, lineN)));
|
|
}
|
|
cur = lineView.node.nextSibling;
|
|
}
|
|
lineN += lineView.size;
|
|
}
|
|
while (cur) { cur = rm(cur); }
|
|
}
|
|
|
|
function updateGutterSpace(display) {
|
|
var width = display.gutters.offsetWidth;
|
|
display.sizer.style.marginLeft = width + "px";
|
|
// Send an event to consumers responding to changes in gutter width.
|
|
signalLater(display, "gutterChanged", display);
|
|
}
|
|
|
|
function setDocumentHeight(cm, measure) {
|
|
cm.display.sizer.style.minHeight = measure.docHeight + "px";
|
|
cm.display.heightForcer.style.top = measure.docHeight + "px";
|
|
cm.display.gutters.style.height = (measure.docHeight + cm.display.barHeight + scrollGap(cm)) + "px";
|
|
}
|
|
|
|
// Re-align line numbers and gutter marks to compensate for
|
|
// horizontal scrolling.
|
|
function alignHorizontally(cm) {
|
|
var display = cm.display, view = display.view;
|
|
if (!display.alignWidgets && (!display.gutters.firstChild || !cm.options.fixedGutter)) { return }
|
|
var comp = compensateForHScroll(display) - display.scroller.scrollLeft + cm.doc.scrollLeft;
|
|
var gutterW = display.gutters.offsetWidth, left = comp + "px";
|
|
for (var i = 0; i < view.length; i++) { if (!view[i].hidden) {
|
|
if (cm.options.fixedGutter) {
|
|
if (view[i].gutter)
|
|
{ view[i].gutter.style.left = left; }
|
|
if (view[i].gutterBackground)
|
|
{ view[i].gutterBackground.style.left = left; }
|
|
}
|
|
var align = view[i].alignable;
|
|
if (align) { for (var j = 0; j < align.length; j++)
|
|
{ align[j].style.left = left; } }
|
|
} }
|
|
if (cm.options.fixedGutter)
|
|
{ display.gutters.style.left = (comp + gutterW) + "px"; }
|
|
}
|
|
|
|
// Used to ensure that the line number gutter is still the right
|
|
// size for the current document size. Returns true when an update
|
|
// is needed.
|
|
function maybeUpdateLineNumberWidth(cm) {
|
|
if (!cm.options.lineNumbers) { return false }
|
|
var doc = cm.doc, last = lineNumberFor(cm.options, doc.first + doc.size - 1), display = cm.display;
|
|
if (last.length != display.lineNumChars) {
|
|
var test = display.measure.appendChild(elt("div", [elt("div", last)],
|
|
"CodeMirror-linenumber CodeMirror-gutter-elt"));
|
|
var innerW = test.firstChild.offsetWidth, padding = test.offsetWidth - innerW;
|
|
display.lineGutter.style.width = "";
|
|
display.lineNumInnerWidth = Math.max(innerW, display.lineGutter.offsetWidth - padding) + 1;
|
|
display.lineNumWidth = display.lineNumInnerWidth + padding;
|
|
display.lineNumChars = display.lineNumInnerWidth ? last.length : -1;
|
|
display.lineGutter.style.width = display.lineNumWidth + "px";
|
|
updateGutterSpace(cm.display);
|
|
return true
|
|
}
|
|
return false
|
|
}
|
|
|
|
function getGutters(gutters, lineNumbers) {
|
|
var result = [], sawLineNumbers = false;
|
|
for (var i = 0; i < gutters.length; i++) {
|
|
var name = gutters[i], style = null;
|
|
if (typeof name != "string") { style = name.style; name = name.className; }
|
|
if (name == "CodeMirror-linenumbers") {
|
|
if (!lineNumbers) { continue }
|
|
else { sawLineNumbers = true; }
|
|
}
|
|
result.push({className: name, style: style});
|
|
}
|
|
if (lineNumbers && !sawLineNumbers) { result.push({className: "CodeMirror-linenumbers", style: null}); }
|
|
return result
|
|
}
|
|
|
|
// Rebuild the gutter elements, ensure the margin to the left of the
|
|
// code matches their width.
|
|
function renderGutters(display) {
|
|
var gutters = display.gutters, specs = display.gutterSpecs;
|
|
removeChildren(gutters);
|
|
display.lineGutter = null;
|
|
for (var i = 0; i < specs.length; ++i) {
|
|
var ref = specs[i];
|
|
var className = ref.className;
|
|
var style = ref.style;
|
|
var gElt = gutters.appendChild(elt("div", null, "CodeMirror-gutter " + className));
|
|
if (style) { gElt.style.cssText = style; }
|
|
if (className == "CodeMirror-linenumbers") {
|
|
display.lineGutter = gElt;
|
|
gElt.style.width = (display.lineNumWidth || 1) + "px";
|
|
}
|
|
}
|
|
gutters.style.display = specs.length ? "" : "none";
|
|
updateGutterSpace(display);
|
|
}
|
|
|
|
function updateGutters(cm) {
|
|
renderGutters(cm.display);
|
|
regChange(cm);
|
|
alignHorizontally(cm);
|
|
}
|
|
|
|
// The display handles the DOM integration, both for input reading
|
|
// and content drawing. It holds references to DOM nodes and
|
|
// display-related state.
|
|
|
|
function Display(place, doc, input, options) {
|
|
var d = this;
|
|
this.input = input;
|
|
|
|
// Covers bottom-right square when both scrollbars are present.
|
|
d.scrollbarFiller = elt("div", null, "CodeMirror-scrollbar-filler");
|
|
d.scrollbarFiller.setAttribute("cm-not-content", "true");
|
|
// Covers bottom of gutter when coverGutterNextToScrollbar is on
|
|
// and h scrollbar is present.
|
|
d.gutterFiller = elt("div", null, "CodeMirror-gutter-filler");
|
|
d.gutterFiller.setAttribute("cm-not-content", "true");
|
|
// Will contain the actual code, positioned to cover the viewport.
|
|
d.lineDiv = eltP("div", null, "CodeMirror-code");
|
|
// Elements are added to these to represent selection and cursors.
|
|
d.selectionDiv = elt("div", null, null, "position: relative; z-index: 1");
|
|
d.cursorDiv = elt("div", null, "CodeMirror-cursors");
|
|
// A visibility: hidden element used to find the size of things.
|
|
d.measure = elt("div", null, "CodeMirror-measure");
|
|
// When lines outside of the viewport are measured, they are drawn in this.
|
|
d.lineMeasure = elt("div", null, "CodeMirror-measure");
|
|
// Wraps everything that needs to exist inside the vertically-padded coordinate system
|
|
d.lineSpace = eltP("div", [d.measure, d.lineMeasure, d.selectionDiv, d.cursorDiv, d.lineDiv],
|
|
null, "position: relative; outline: none");
|
|
var lines = eltP("div", [d.lineSpace], "CodeMirror-lines");
|
|
// Moved around its parent to cover visible view.
|
|
d.mover = elt("div", [lines], null, "position: relative");
|
|
// Set to the height of the document, allowing scrolling.
|
|
d.sizer = elt("div", [d.mover], "CodeMirror-sizer");
|
|
d.sizerWidth = null;
|
|
// Behavior of elts with overflow: auto and padding is
|
|
// inconsistent across browsers. This is used to ensure the
|
|
// scrollable area is big enough.
|
|
d.heightForcer = elt("div", null, null, "position: absolute; height: " + scrollerGap + "px; width: 1px;");
|
|
// Will contain the gutters, if any.
|
|
d.gutters = elt("div", null, "CodeMirror-gutters");
|
|
d.lineGutter = null;
|
|
// Actual scrollable element.
|
|
d.scroller = elt("div", [d.sizer, d.heightForcer, d.gutters], "CodeMirror-scroll");
|
|
d.scroller.setAttribute("tabIndex", "-1");
|
|
// The element in which the editor lives.
|
|
d.wrapper = elt("div", [d.scrollbarFiller, d.gutterFiller, d.scroller], "CodeMirror");
|
|
|
|
// This attribute is respected by automatic translation systems such as Google Translate,
|
|
// and may also be respected by tools used by human translators.
|
|
d.wrapper.setAttribute('translate', 'no');
|
|
|
|
// Work around IE7 z-index bug (not perfect, hence IE7 not really being supported)
|
|
if (ie && ie_version < 8) { d.gutters.style.zIndex = -1; d.scroller.style.paddingRight = 0; }
|
|
if (!webkit && !(gecko && mobile)) { d.scroller.draggable = true; }
|
|
|
|
if (place) {
|
|
if (place.appendChild) { place.appendChild(d.wrapper); }
|
|
else { place(d.wrapper); }
|
|
}
|
|
|
|
// Current rendered range (may be bigger than the view window).
|
|
d.viewFrom = d.viewTo = doc.first;
|
|
d.reportedViewFrom = d.reportedViewTo = doc.first;
|
|
// Information about the rendered lines.
|
|
d.view = [];
|
|
d.renderedView = null;
|
|
// Holds info about a single rendered line when it was rendered
|
|
// for measurement, while not in view.
|
|
d.externalMeasured = null;
|
|
// Empty space (in pixels) above the view
|
|
d.viewOffset = 0;
|
|
d.lastWrapHeight = d.lastWrapWidth = 0;
|
|
d.updateLineNumbers = null;
|
|
|
|
d.nativeBarWidth = d.barHeight = d.barWidth = 0;
|
|
d.scrollbarsClipped = false;
|
|
|
|
// Used to only resize the line number gutter when necessary (when
|
|
// the amount of lines crosses a boundary that makes its width change)
|
|
d.lineNumWidth = d.lineNumInnerWidth = d.lineNumChars = null;
|
|
// Set to true when a non-horizontal-scrolling line widget is
|
|
// added. As an optimization, line widget aligning is skipped when
|
|
// this is false.
|
|
d.alignWidgets = false;
|
|
|
|
d.cachedCharWidth = d.cachedTextHeight = d.cachedPaddingH = null;
|
|
|
|
// Tracks the maximum line length so that the horizontal scrollbar
|
|
// can be kept static when scrolling.
|
|
d.maxLine = null;
|
|
d.maxLineLength = 0;
|
|
d.maxLineChanged = false;
|
|
|
|
// Used for measuring wheel scrolling granularity
|
|
d.wheelDX = d.wheelDY = d.wheelStartX = d.wheelStartY = null;
|
|
|
|
// True when shift is held down.
|
|
d.shift = false;
|
|
|
|
// Used to track whether anything happened since the context menu
|
|
// was opened.
|
|
d.selForContextMenu = null;
|
|
|
|
d.activeTouch = null;
|
|
|
|
d.gutterSpecs = getGutters(options.gutters, options.lineNumbers);
|
|
renderGutters(d);
|
|
|
|
input.init(d);
|
|
}
|
|
|
|
// Since the delta values reported on mouse wheel events are
|
|
// unstandardized between browsers and even browser versions, and
|
|
// generally horribly unpredictable, this code starts by measuring
|
|
// the scroll effect that the first few mouse wheel events have,
|
|
// and, from that, detects the way it can convert deltas to pixel
|
|
// offsets afterwards.
|
|
//
|
|
// The reason we want to know the amount a wheel event will scroll
|
|
// is that it gives us a chance to update the display before the
|
|
// actual scrolling happens, reducing flickering.
|
|
|
|
var wheelSamples = 0, wheelPixelsPerUnit = null;
|
|
// Fill in a browser-detected starting value on browsers where we
|
|
// know one. These don't have to be accurate -- the result of them
|
|
// being wrong would just be a slight flicker on the first wheel
|
|
// scroll (if it is large enough).
|
|
if (ie) { wheelPixelsPerUnit = -.53; }
|
|
else if (gecko) { wheelPixelsPerUnit = 15; }
|
|
else if (chrome) { wheelPixelsPerUnit = -.7; }
|
|
else if (safari) { wheelPixelsPerUnit = -1/3; }
|
|
|
|
function wheelEventDelta(e) {
|
|
var dx = e.wheelDeltaX, dy = e.wheelDeltaY;
|
|
if (dx == null && e.detail && e.axis == e.HORIZONTAL_AXIS) { dx = e.detail; }
|
|
if (dy == null && e.detail && e.axis == e.VERTICAL_AXIS) { dy = e.detail; }
|
|
else if (dy == null) { dy = e.wheelDelta; }
|
|
return {x: dx, y: dy}
|
|
}
|
|
function wheelEventPixels(e) {
|
|
var delta = wheelEventDelta(e);
|
|
delta.x *= wheelPixelsPerUnit;
|
|
delta.y *= wheelPixelsPerUnit;
|
|
return delta
|
|
}
|
|
|
|
function onScrollWheel(cm, e) {
|
|
var delta = wheelEventDelta(e), dx = delta.x, dy = delta.y;
|
|
var pixelsPerUnit = wheelPixelsPerUnit;
|
|
if (e.deltaMode === 0) {
|
|
dx = e.deltaX;
|
|
dy = e.deltaY;
|
|
pixelsPerUnit = 1;
|
|
}
|
|
|
|
var display = cm.display, scroll = display.scroller;
|
|
// Quit if there's nothing to scroll here
|
|
var canScrollX = scroll.scrollWidth > scroll.clientWidth;
|
|
var canScrollY = scroll.scrollHeight > scroll.clientHeight;
|
|
if (!(dx && canScrollX || dy && canScrollY)) { return }
|
|
|
|
// Webkit browsers on OS X abort momentum scrolls when the target
|
|
// of the scroll event is removed from the scrollable element.
|
|
// This hack (see related code in patchDisplay) makes sure the
|
|
// element is kept around.
|
|
if (dy && mac && webkit) {
|
|
outer: for (var cur = e.target, view = display.view; cur != scroll; cur = cur.parentNode) {
|
|
for (var i = 0; i < view.length; i++) {
|
|
if (view[i].node == cur) {
|
|
cm.display.currentWheelTarget = cur;
|
|
break outer
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// On some browsers, horizontal scrolling will cause redraws to
|
|
// happen before the gutter has been realigned, causing it to
|
|
// wriggle around in a most unseemly way. When we have an
|
|
// estimated pixels/delta value, we just handle horizontal
|
|
// scrolling entirely here. It'll be slightly off from native, but
|
|
// better than glitching out.
|
|
if (dx && !gecko && !presto && pixelsPerUnit != null) {
|
|
if (dy && canScrollY)
|
|
{ updateScrollTop(cm, Math.max(0, scroll.scrollTop + dy * pixelsPerUnit)); }
|
|
setScrollLeft(cm, Math.max(0, scroll.scrollLeft + dx * pixelsPerUnit));
|
|
// Only prevent default scrolling if vertical scrolling is
|
|
// actually possible. Otherwise, it causes vertical scroll
|
|
// jitter on OSX trackpads when deltaX is small and deltaY
|
|
// is large (issue #3579)
|
|
if (!dy || (dy && canScrollY))
|
|
{ e_preventDefault(e); }
|
|
display.wheelStartX = null; // Abort measurement, if in progress
|
|
return
|
|
}
|
|
|
|
// 'Project' the visible viewport to cover the area that is being
|
|
// scrolled into view (if we know enough to estimate it).
|
|
if (dy && pixelsPerUnit != null) {
|
|
var pixels = dy * pixelsPerUnit;
|
|
var top = cm.doc.scrollTop, bot = top + display.wrapper.clientHeight;
|
|
if (pixels < 0) { top = Math.max(0, top + pixels - 50); }
|
|
else { bot = Math.min(cm.doc.height, bot + pixels + 50); }
|
|
updateDisplaySimple(cm, {top: top, bottom: bot});
|
|
}
|
|
|
|
if (wheelSamples < 20 && e.deltaMode !== 0) {
|
|
if (display.wheelStartX == null) {
|
|
display.wheelStartX = scroll.scrollLeft; display.wheelStartY = scroll.scrollTop;
|
|
display.wheelDX = dx; display.wheelDY = dy;
|
|
setTimeout(function () {
|
|
if (display.wheelStartX == null) { return }
|
|
var movedX = scroll.scrollLeft - display.wheelStartX;
|
|
var movedY = scroll.scrollTop - display.wheelStartY;
|
|
var sample = (movedY && display.wheelDY && movedY / display.wheelDY) ||
|
|
(movedX && display.wheelDX && movedX / display.wheelDX);
|
|
display.wheelStartX = display.wheelStartY = null;
|
|
if (!sample) { return }
|
|
wheelPixelsPerUnit = (wheelPixelsPerUnit * wheelSamples + sample) / (wheelSamples + 1);
|
|
++wheelSamples;
|
|
}, 200);
|
|
} else {
|
|
display.wheelDX += dx; display.wheelDY += dy;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Selection objects are immutable. A new one is created every time
|
|
// the selection changes. A selection is one or more non-overlapping
|
|
// (and non-touching) ranges, sorted, and an integer that indicates
|
|
// which one is the primary selection (the one that's scrolled into
|
|
// view, that getCursor returns, etc).
|
|
var Selection = function(ranges, primIndex) {
|
|
this.ranges = ranges;
|
|
this.primIndex = primIndex;
|
|
};
|
|
|
|
Selection.prototype.primary = function () { return this.ranges[this.primIndex] };
|
|
|
|
Selection.prototype.equals = function (other) {
|
|
if (other == this) { return true }
|
|
if (other.primIndex != this.primIndex || other.ranges.length != this.ranges.length) { return false }
|
|
for (var i = 0; i < this.ranges.length; i++) {
|
|
var here = this.ranges[i], there = other.ranges[i];
|
|
if (!equalCursorPos(here.anchor, there.anchor) || !equalCursorPos(here.head, there.head)) { return false }
|
|
}
|
|
return true
|
|
};
|
|
|
|
Selection.prototype.deepCopy = function () {
|
|
var out = [];
|
|
for (var i = 0; i < this.ranges.length; i++)
|
|
{ out[i] = new Range(copyPos(this.ranges[i].anchor), copyPos(this.ranges[i].head)); }
|
|
return new Selection(out, this.primIndex)
|
|
};
|
|
|
|
Selection.prototype.somethingSelected = function () {
|
|
for (var i = 0; i < this.ranges.length; i++)
|
|
{ if (!this.ranges[i].empty()) { return true } }
|
|
return false
|
|
};
|
|
|
|
Selection.prototype.contains = function (pos, end) {
|
|
if (!end) { end = pos; }
|
|
for (var i = 0; i < this.ranges.length; i++) {
|
|
var range = this.ranges[i];
|
|
if (cmp(end, range.from()) >= 0 && cmp(pos, range.to()) <= 0)
|
|
{ return i }
|
|
}
|
|
return -1
|
|
};
|
|
|
|
var Range = function(anchor, head) {
|
|
this.anchor = anchor; this.head = head;
|
|
};
|
|
|
|
Range.prototype.from = function () { return minPos(this.anchor, this.head) };
|
|
Range.prototype.to = function () { return maxPos(this.anchor, this.head) };
|
|
Range.prototype.empty = function () { return this.head.line == this.anchor.line && this.head.ch == this.anchor.ch };
|
|
|
|
// Take an unsorted, potentially overlapping set of ranges, and
|
|
// build a selection out of it. 'Consumes' ranges array (modifying
|
|
// it).
|
|
function normalizeSelection(cm, ranges, primIndex) {
|
|
var mayTouch = cm && cm.options.selectionsMayTouch;
|
|
var prim = ranges[primIndex];
|
|
ranges.sort(function (a, b) { return cmp(a.from(), b.from()); });
|
|
primIndex = indexOf(ranges, prim);
|
|
for (var i = 1; i < ranges.length; i++) {
|
|
var cur = ranges[i], prev = ranges[i - 1];
|
|
var diff = cmp(prev.to(), cur.from());
|
|
if (mayTouch && !cur.empty() ? diff > 0 : diff >= 0) {
|
|
var from = minPos(prev.from(), cur.from()), to = maxPos(prev.to(), cur.to());
|
|
var inv = prev.empty() ? cur.from() == cur.head : prev.from() == prev.head;
|
|
if (i <= primIndex) { --primIndex; }
|
|
ranges.splice(--i, 2, new Range(inv ? to : from, inv ? from : to));
|
|
}
|
|
}
|
|
return new Selection(ranges, primIndex)
|
|
}
|
|
|
|
function simpleSelection(anchor, head) {
|
|
return new Selection([new Range(anchor, head || anchor)], 0)
|
|
}
|
|
|
|
// Compute the position of the end of a change (its 'to' property
|
|
// refers to the pre-change end).
|
|
function changeEnd(change) {
|
|
if (!change.text) { return change.to }
|
|
return Pos(change.from.line + change.text.length - 1,
|
|
lst(change.text).length + (change.text.length == 1 ? change.from.ch : 0))
|
|
}
|
|
|
|
// Adjust a position to refer to the post-change position of the
|
|
// same text, or the end of the change if the change covers it.
|
|
function adjustForChange(pos, change) {
|
|
if (cmp(pos, change.from) < 0) { return pos }
|
|
if (cmp(pos, change.to) <= 0) { return changeEnd(change) }
|
|
|
|
var line = pos.line + change.text.length - (change.to.line - change.from.line) - 1, ch = pos.ch;
|
|
if (pos.line == change.to.line) { ch += changeEnd(change).ch - change.to.ch; }
|
|
return Pos(line, ch)
|
|
}
|
|
|
|
function computeSelAfterChange(doc, change) {
|
|
var out = [];
|
|
for (var i = 0; i < doc.sel.ranges.length; i++) {
|
|
var range = doc.sel.ranges[i];
|
|
out.push(new Range(adjustForChange(range.anchor, change),
|
|
adjustForChange(range.head, change)));
|
|
}
|
|
return normalizeSelection(doc.cm, out, doc.sel.primIndex)
|
|
}
|
|
|
|
function offsetPos(pos, old, nw) {
|
|
if (pos.line == old.line)
|
|
{ return Pos(nw.line, pos.ch - old.ch + nw.ch) }
|
|
else
|
|
{ return Pos(nw.line + (pos.line - old.line), pos.ch) }
|
|
}
|
|
|
|
// Used by replaceSelections to allow moving the selection to the
|
|
// start or around the replaced test. Hint may be "start" or "around".
|
|
function computeReplacedSel(doc, changes, hint) {
|
|
var out = [];
|
|
var oldPrev = Pos(doc.first, 0), newPrev = oldPrev;
|
|
for (var i = 0; i < changes.length; i++) {
|
|
var change = changes[i];
|
|
var from = offsetPos(change.from, oldPrev, newPrev);
|
|
var to = offsetPos(changeEnd(change), oldPrev, newPrev);
|
|
oldPrev = change.to;
|
|
newPrev = to;
|
|
if (hint == "around") {
|
|
var range = doc.sel.ranges[i], inv = cmp(range.head, range.anchor) < 0;
|
|
out[i] = new Range(inv ? to : from, inv ? from : to);
|
|
} else {
|
|
out[i] = new Range(from, from);
|
|
}
|
|
}
|
|
return new Selection(out, doc.sel.primIndex)
|
|
}
|
|
|
|
// Used to get the editor into a consistent state again when options change.
|
|
|
|
function loadMode(cm) {
|
|
cm.doc.mode = getMode(cm.options, cm.doc.modeOption);
|
|
resetModeState(cm);
|
|
}
|
|
|
|
function resetModeState(cm) {
|
|
cm.doc.iter(function (line) {
|
|
if (line.stateAfter) { line.stateAfter = null; }
|
|
if (line.styles) { line.styles = null; }
|
|
});
|
|
cm.doc.modeFrontier = cm.doc.highlightFrontier = cm.doc.first;
|
|
startWorker(cm, 100);
|
|
cm.state.modeGen++;
|
|
if (cm.curOp) { regChange(cm); }
|
|
}
|
|
|
|
// DOCUMENT DATA STRUCTURE
|
|
|
|
// By default, updates that start and end at the beginning of a line
|
|
// are treated specially, in order to make the association of line
|
|
// widgets and marker elements with the text behave more intuitive.
|
|
function isWholeLineUpdate(doc, change) {
|
|
return change.from.ch == 0 && change.to.ch == 0 && lst(change.text) == "" &&
|
|
(!doc.cm || doc.cm.options.wholeLineUpdateBefore)
|
|
}
|
|
|
|
// Perform a change on the document data structure.
|
|
function updateDoc(doc, change, markedSpans, estimateHeight) {
|
|
function spansFor(n) {return markedSpans ? markedSpans[n] : null}
|
|
function update(line, text, spans) {
|
|
updateLine(line, text, spans, estimateHeight);
|
|
signalLater(line, "change", line, change);
|
|
}
|
|
function linesFor(start, end) {
|
|
var result = [];
|
|
for (var i = start; i < end; ++i)
|
|
{ result.push(new Line(text[i], spansFor(i), estimateHeight)); }
|
|
return result
|
|
}
|
|
|
|
var from = change.from, to = change.to, text = change.text;
|
|
var firstLine = getLine(doc, from.line), lastLine = getLine(doc, to.line);
|
|
var lastText = lst(text), lastSpans = spansFor(text.length - 1), nlines = to.line - from.line;
|
|
|
|
// Adjust the line structure
|
|
if (change.full) {
|
|
doc.insert(0, linesFor(0, text.length));
|
|
doc.remove(text.length, doc.size - text.length);
|
|
} else if (isWholeLineUpdate(doc, change)) {
|
|
// This is a whole-line replace. Treated specially to make
|
|
// sure line objects move the way they are supposed to.
|
|
var added = linesFor(0, text.length - 1);
|
|
update(lastLine, lastLine.text, lastSpans);
|
|
if (nlines) { doc.remove(from.line, nlines); }
|
|
if (added.length) { doc.insert(from.line, added); }
|
|
} else if (firstLine == lastLine) {
|
|
if (text.length == 1) {
|
|
update(firstLine, firstLine.text.slice(0, from.ch) + lastText + firstLine.text.slice(to.ch), lastSpans);
|
|
} else {
|
|
var added$1 = linesFor(1, text.length - 1);
|
|
added$1.push(new Line(lastText + firstLine.text.slice(to.ch), lastSpans, estimateHeight));
|
|
update(firstLine, firstLine.text.slice(0, from.ch) + text[0], spansFor(0));
|
|
doc.insert(from.line + 1, added$1);
|
|
}
|
|
} else if (text.length == 1) {
|
|
update(firstLine, firstLine.text.slice(0, from.ch) + text[0] + lastLine.text.slice(to.ch), spansFor(0));
|
|
doc.remove(from.line + 1, nlines);
|
|
} else {
|
|
update(firstLine, firstLine.text.slice(0, from.ch) + text[0], spansFor(0));
|
|
update(lastLine, lastText + lastLine.text.slice(to.ch), lastSpans);
|
|
var added$2 = linesFor(1, text.length - 1);
|
|
if (nlines > 1) { doc.remove(from.line + 1, nlines - 1); }
|
|
doc.insert(from.line + 1, added$2);
|
|
}
|
|
|
|
signalLater(doc, "change", doc, change);
|
|
}
|
|
|
|
// Call f for all linked documents.
|
|
function linkedDocs(doc, f, sharedHistOnly) {
|
|
function propagate(doc, skip, sharedHist) {
|
|
if (doc.linked) { for (var i = 0; i < doc.linked.length; ++i) {
|
|
var rel = doc.linked[i];
|
|
if (rel.doc == skip) { continue }
|
|
var shared = sharedHist && rel.sharedHist;
|
|
if (sharedHistOnly && !shared) { continue }
|
|
f(rel.doc, shared);
|
|
propagate(rel.doc, doc, shared);
|
|
} }
|
|
}
|
|
propagate(doc, null, true);
|
|
}
|
|
|
|
// Attach a document to an editor.
|
|
function attachDoc(cm, doc) {
|
|
if (doc.cm) { throw new Error("This document is already in use.") }
|
|
cm.doc = doc;
|
|
doc.cm = cm;
|
|
estimateLineHeights(cm);
|
|
loadMode(cm);
|
|
setDirectionClass(cm);
|
|
cm.options.direction = doc.direction;
|
|
if (!cm.options.lineWrapping) { findMaxLine(cm); }
|
|
cm.options.mode = doc.modeOption;
|
|
regChange(cm);
|
|
}
|
|
|
|
function setDirectionClass(cm) {
|
|
(cm.doc.direction == "rtl" ? addClass : rmClass)(cm.display.lineDiv, "CodeMirror-rtl");
|
|
}
|
|
|
|
function directionChanged(cm) {
|
|
runInOp(cm, function () {
|
|
setDirectionClass(cm);
|
|
regChange(cm);
|
|
});
|
|
}
|
|
|
|
function History(prev) {
|
|
// Arrays of change events and selections. Doing something adds an
|
|
// event to done and clears undo. Undoing moves events from done
|
|
// to undone, redoing moves them in the other direction.
|
|
this.done = []; this.undone = [];
|
|
this.undoDepth = prev ? prev.undoDepth : Infinity;
|
|
// Used to track when changes can be merged into a single undo
|
|
// event
|
|
this.lastModTime = this.lastSelTime = 0;
|
|
this.lastOp = this.lastSelOp = null;
|
|
this.lastOrigin = this.lastSelOrigin = null;
|
|
// Used by the isClean() method
|
|
this.generation = this.maxGeneration = prev ? prev.maxGeneration : 1;
|
|
}
|
|
|
|
// Create a history change event from an updateDoc-style change
|
|
// object.
|
|
function historyChangeFromChange(doc, change) {
|
|
var histChange = {from: copyPos(change.from), to: changeEnd(change), text: getBetween(doc, change.from, change.to)};
|
|
attachLocalSpans(doc, histChange, change.from.line, change.to.line + 1);
|
|
linkedDocs(doc, function (doc) { return attachLocalSpans(doc, histChange, change.from.line, change.to.line + 1); }, true);
|
|
return histChange
|
|
}
|
|
|
|
// Pop all selection events off the end of a history array. Stop at
|
|
// a change event.
|
|
function clearSelectionEvents(array) {
|
|
while (array.length) {
|
|
var last = lst(array);
|
|
if (last.ranges) { array.pop(); }
|
|
else { break }
|
|
}
|
|
}
|
|
|
|
// Find the top change event in the history. Pop off selection
|
|
// events that are in the way.
|
|
function lastChangeEvent(hist, force) {
|
|
if (force) {
|
|
clearSelectionEvents(hist.done);
|
|
return lst(hist.done)
|
|
} else if (hist.done.length && !lst(hist.done).ranges) {
|
|
return lst(hist.done)
|
|
} else if (hist.done.length > 1 && !hist.done[hist.done.length - 2].ranges) {
|
|
hist.done.pop();
|
|
return lst(hist.done)
|
|
}
|
|
}
|
|
|
|
// Register a change in the history. Merges changes that are within
|
|
// a single operation, or are close together with an origin that
|
|
// allows merging (starting with "+") into a single event.
|
|
function addChangeToHistory(doc, change, selAfter, opId) {
|
|
var hist = doc.history;
|
|
hist.undone.length = 0;
|
|
var time = +new Date, cur;
|
|
var last;
|
|
|
|
if ((hist.lastOp == opId ||
|
|
hist.lastOrigin == change.origin && change.origin &&
|
|
((change.origin.charAt(0) == "+" && hist.lastModTime > time - (doc.cm ? doc.cm.options.historyEventDelay : 500)) ||
|
|
change.origin.charAt(0) == "*")) &&
|
|
(cur = lastChangeEvent(hist, hist.lastOp == opId))) {
|
|
// Merge this change into the last event
|
|
last = lst(cur.changes);
|
|
if (cmp(change.from, change.to) == 0 && cmp(change.from, last.to) == 0) {
|
|
// Optimized case for simple insertion -- don't want to add
|
|
// new changesets for every character typed
|
|
last.to = changeEnd(change);
|
|
} else {
|
|
// Add new sub-event
|
|
cur.changes.push(historyChangeFromChange(doc, change));
|
|
}
|
|
} else {
|
|
// Can not be merged, start a new event.
|
|
var before = lst(hist.done);
|
|
if (!before || !before.ranges)
|
|
{ pushSelectionToHistory(doc.sel, hist.done); }
|
|
cur = {changes: [historyChangeFromChange(doc, change)],
|
|
generation: hist.generation};
|
|
hist.done.push(cur);
|
|
while (hist.done.length > hist.undoDepth) {
|
|
hist.done.shift();
|
|
if (!hist.done[0].ranges) { hist.done.shift(); }
|
|
}
|
|
}
|
|
hist.done.push(selAfter);
|
|
hist.generation = ++hist.maxGeneration;
|
|
hist.lastModTime = hist.lastSelTime = time;
|
|
hist.lastOp = hist.lastSelOp = opId;
|
|
hist.lastOrigin = hist.lastSelOrigin = change.origin;
|
|
|
|
if (!last) { signal(doc, "historyAdded"); }
|
|
}
|
|
|
|
function selectionEventCanBeMerged(doc, origin, prev, sel) {
|
|
var ch = origin.charAt(0);
|
|
return ch == "*" ||
|
|
ch == "+" &&
|
|
prev.ranges.length == sel.ranges.length &&
|
|
prev.somethingSelected() == sel.somethingSelected() &&
|
|
new Date - doc.history.lastSelTime <= (doc.cm ? doc.cm.options.historyEventDelay : 500)
|
|
}
|
|
|
|
// Called whenever the selection changes, sets the new selection as
|
|
// the pending selection in the history, and pushes the old pending
|
|
// selection into the 'done' array when it was significantly
|
|
// different (in number of selected ranges, emptiness, or time).
|
|
function addSelectionToHistory(doc, sel, opId, options) {
|
|
var hist = doc.history, origin = options && options.origin;
|
|
|
|
// A new event is started when the previous origin does not match
|
|
// the current, or the origins don't allow matching. Origins
|
|
// starting with * are always merged, those starting with + are
|
|
// merged when similar and close together in time.
|
|
if (opId == hist.lastSelOp ||
|
|
(origin && hist.lastSelOrigin == origin &&
|
|
(hist.lastModTime == hist.lastSelTime && hist.lastOrigin == origin ||
|
|
selectionEventCanBeMerged(doc, origin, lst(hist.done), sel))))
|
|
{ hist.done[hist.done.length - 1] = sel; }
|
|
else
|
|
{ pushSelectionToHistory(sel, hist.done); }
|
|
|
|
hist.lastSelTime = +new Date;
|
|
hist.lastSelOrigin = origin;
|
|
hist.lastSelOp = opId;
|
|
if (options && options.clearRedo !== false)
|
|
{ clearSelectionEvents(hist.undone); }
|
|
}
|
|
|
|
function pushSelectionToHistory(sel, dest) {
|
|
var top = lst(dest);
|
|
if (!(top && top.ranges && top.equals(sel)))
|
|
{ dest.push(sel); }
|
|
}
|
|
|
|
// Used to store marked span information in the history.
|
|
function attachLocalSpans(doc, change, from, to) {
|
|
var existing = change["spans_" + doc.id], n = 0;
|
|
doc.iter(Math.max(doc.first, from), Math.min(doc.first + doc.size, to), function (line) {
|
|
if (line.markedSpans)
|
|
{ (existing || (existing = change["spans_" + doc.id] = {}))[n] = line.markedSpans; }
|
|
++n;
|
|
});
|
|
}
|
|
|
|
// When un/re-doing restores text containing marked spans, those
|
|
// that have been explicitly cleared should not be restored.
|
|
function removeClearedSpans(spans) {
|
|
if (!spans) { return null }
|
|
var out;
|
|
for (var i = 0; i < spans.length; ++i) {
|
|
if (spans[i].marker.explicitlyCleared) { if (!out) { out = spans.slice(0, i); } }
|
|
else if (out) { out.push(spans[i]); }
|
|
}
|
|
return !out ? spans : out.length ? out : null
|
|
}
|
|
|
|
// Retrieve and filter the old marked spans stored in a change event.
|
|
function getOldSpans(doc, change) {
|
|
var found = change["spans_" + doc.id];
|
|
if (!found) { return null }
|
|
var nw = [];
|
|
for (var i = 0; i < change.text.length; ++i)
|
|
{ nw.push(removeClearedSpans(found[i])); }
|
|
return nw
|
|
}
|
|
|
|
// Used for un/re-doing changes from the history. Combines the
|
|
// result of computing the existing spans with the set of spans that
|
|
// existed in the history (so that deleting around a span and then
|
|
// undoing brings back the span).
|
|
function mergeOldSpans(doc, change) {
|
|
var old = getOldSpans(doc, change);
|
|
var stretched = stretchSpansOverChange(doc, change);
|
|
if (!old) { return stretched }
|
|
if (!stretched) { return old }
|
|
|
|
for (var i = 0; i < old.length; ++i) {
|
|
var oldCur = old[i], stretchCur = stretched[i];
|
|
if (oldCur && stretchCur) {
|
|
spans: for (var j = 0; j < stretchCur.length; ++j) {
|
|
var span = stretchCur[j];
|
|
for (var k = 0; k < oldCur.length; ++k)
|
|
{ if (oldCur[k].marker == span.marker) { continue spans } }
|
|
oldCur.push(span);
|
|
}
|
|
} else if (stretchCur) {
|
|
old[i] = stretchCur;
|
|
}
|
|
}
|
|
return old
|
|
}
|
|
|
|
// Used both to provide a JSON-safe object in .getHistory, and, when
|
|
// detaching a document, to split the history in two
|
|
function copyHistoryArray(events, newGroup, instantiateSel) {
|
|
var copy = [];
|
|
for (var i = 0; i < events.length; ++i) {
|
|
var event = events[i];
|
|
if (event.ranges) {
|
|
copy.push(instantiateSel ? Selection.prototype.deepCopy.call(event) : event);
|
|
continue
|
|
}
|
|
var changes = event.changes, newChanges = [];
|
|
copy.push({changes: newChanges});
|
|
for (var j = 0; j < changes.length; ++j) {
|
|
var change = changes[j], m = (void 0);
|
|
newChanges.push({from: change.from, to: change.to, text: change.text});
|
|
if (newGroup) { for (var prop in change) { if (m = prop.match(/^spans_(\d+)$/)) {
|
|
if (indexOf(newGroup, Number(m[1])) > -1) {
|
|
lst(newChanges)[prop] = change[prop];
|
|
delete change[prop];
|
|
}
|
|
} } }
|
|
}
|
|
}
|
|
return copy
|
|
}
|
|
|
|
// The 'scroll' parameter given to many of these indicated whether
|
|
// the new cursor position should be scrolled into view after
|
|
// modifying the selection.
|
|
|
|
// If shift is held or the extend flag is set, extends a range to
|
|
// include a given position (and optionally a second position).
|
|
// Otherwise, simply returns the range between the given positions.
|
|
// Used for cursor motion and such.
|
|
function extendRange(range, head, other, extend) {
|
|
if (extend) {
|
|
var anchor = range.anchor;
|
|
if (other) {
|
|
var posBefore = cmp(head, anchor) < 0;
|
|
if (posBefore != (cmp(other, anchor) < 0)) {
|
|
anchor = head;
|
|
head = other;
|
|
} else if (posBefore != (cmp(head, other) < 0)) {
|
|
head = other;
|
|
}
|
|
}
|
|
return new Range(anchor, head)
|
|
} else {
|
|
return new Range(other || head, head)
|
|
}
|
|
}
|
|
|
|
// Extend the primary selection range, discard the rest.
|
|
function extendSelection(doc, head, other, options, extend) {
|
|
if (extend == null) { extend = doc.cm && (doc.cm.display.shift || doc.extend); }
|
|
setSelection(doc, new Selection([extendRange(doc.sel.primary(), head, other, extend)], 0), options);
|
|
}
|
|
|
|
// Extend all selections (pos is an array of selections with length
|
|
// equal the number of selections)
|
|
function extendSelections(doc, heads, options) {
|
|
var out = [];
|
|
var extend = doc.cm && (doc.cm.display.shift || doc.extend);
|
|
for (var i = 0; i < doc.sel.ranges.length; i++)
|
|
{ out[i] = extendRange(doc.sel.ranges[i], heads[i], null, extend); }
|
|
var newSel = normalizeSelection(doc.cm, out, doc.sel.primIndex);
|
|
setSelection(doc, newSel, options);
|
|
}
|
|
|
|
// Updates a single range in the selection.
|
|
function replaceOneSelection(doc, i, range, options) {
|
|
var ranges = doc.sel.ranges.slice(0);
|
|
ranges[i] = range;
|
|
setSelection(doc, normalizeSelection(doc.cm, ranges, doc.sel.primIndex), options);
|
|
}
|
|
|
|
// Reset the selection to a single range.
|
|
function setSimpleSelection(doc, anchor, head, options) {
|
|
setSelection(doc, simpleSelection(anchor, head), options);
|
|
}
|
|
|
|
// Give beforeSelectionChange handlers a change to influence a
|
|
// selection update.
|
|
function filterSelectionChange(doc, sel, options) {
|
|
var obj = {
|
|
ranges: sel.ranges,
|
|
update: function(ranges) {
|
|
this.ranges = [];
|
|
for (var i = 0; i < ranges.length; i++)
|
|
{ this.ranges[i] = new Range(clipPos(doc, ranges[i].anchor),
|
|
clipPos(doc, ranges[i].head)); }
|
|
},
|
|
origin: options && options.origin
|
|
};
|
|
signal(doc, "beforeSelectionChange", doc, obj);
|
|
if (doc.cm) { signal(doc.cm, "beforeSelectionChange", doc.cm, obj); }
|
|
if (obj.ranges != sel.ranges) { return normalizeSelection(doc.cm, obj.ranges, obj.ranges.length - 1) }
|
|
else { return sel }
|
|
}
|
|
|
|
function setSelectionReplaceHistory(doc, sel, options) {
|
|
var done = doc.history.done, last = lst(done);
|
|
if (last && last.ranges) {
|
|
done[done.length - 1] = sel;
|
|
setSelectionNoUndo(doc, sel, options);
|
|
} else {
|
|
setSelection(doc, sel, options);
|
|
}
|
|
}
|
|
|
|
// Set a new selection.
|
|
function setSelection(doc, sel, options) {
|
|
setSelectionNoUndo(doc, sel, options);
|
|
addSelectionToHistory(doc, doc.sel, doc.cm ? doc.cm.curOp.id : NaN, options);
|
|
}
|
|
|
|
function setSelectionNoUndo(doc, sel, options) {
|
|
if (hasHandler(doc, "beforeSelectionChange") || doc.cm && hasHandler(doc.cm, "beforeSelectionChange"))
|
|
{ sel = filterSelectionChange(doc, sel, options); }
|
|
|
|
var bias = options && options.bias ||
|
|
(cmp(sel.primary().head, doc.sel.primary().head) < 0 ? -1 : 1);
|
|
setSelectionInner(doc, skipAtomicInSelection(doc, sel, bias, true));
|
|
|
|
if (!(options && options.scroll === false) && doc.cm && doc.cm.getOption("readOnly") != "nocursor")
|
|
{ ensureCursorVisible(doc.cm); }
|
|
}
|
|
|
|
function setSelectionInner(doc, sel) {
|
|
if (sel.equals(doc.sel)) { return }
|
|
|
|
doc.sel = sel;
|
|
|
|
if (doc.cm) {
|
|
doc.cm.curOp.updateInput = 1;
|
|
doc.cm.curOp.selectionChanged = true;
|
|
signalCursorActivity(doc.cm);
|
|
}
|
|
signalLater(doc, "cursorActivity", doc);
|
|
}
|
|
|
|
// Verify that the selection does not partially select any atomic
|
|
// marked ranges.
|
|
function reCheckSelection(doc) {
|
|
setSelectionInner(doc, skipAtomicInSelection(doc, doc.sel, null, false));
|
|
}
|
|
|
|
// Return a selection that does not partially select any atomic
|
|
// ranges.
|
|
function skipAtomicInSelection(doc, sel, bias, mayClear) {
|
|
var out;
|
|
for (var i = 0; i < sel.ranges.length; i++) {
|
|
var range = sel.ranges[i];
|
|
var old = sel.ranges.length == doc.sel.ranges.length && doc.sel.ranges[i];
|
|
var newAnchor = skipAtomic(doc, range.anchor, old && old.anchor, bias, mayClear);
|
|
var newHead = skipAtomic(doc, range.head, old && old.head, bias, mayClear);
|
|
if (out || newAnchor != range.anchor || newHead != range.head) {
|
|
if (!out) { out = sel.ranges.slice(0, i); }
|
|
out[i] = new Range(newAnchor, newHead);
|
|
}
|
|
}
|
|
return out ? normalizeSelection(doc.cm, out, sel.primIndex) : sel
|
|
}
|
|
|
|
function skipAtomicInner(doc, pos, oldPos, dir, mayClear) {
|
|
var line = getLine(doc, pos.line);
|
|
if (line.markedSpans) { for (var i = 0; i < line.markedSpans.length; ++i) {
|
|
var sp = line.markedSpans[i], m = sp.marker;
|
|
|
|
// Determine if we should prevent the cursor being placed to the left/right of an atomic marker
|
|
// Historically this was determined using the inclusiveLeft/Right option, but the new way to control it
|
|
// is with selectLeft/Right
|
|
var preventCursorLeft = ("selectLeft" in m) ? !m.selectLeft : m.inclusiveLeft;
|
|
var preventCursorRight = ("selectRight" in m) ? !m.selectRight : m.inclusiveRight;
|
|
|
|
if ((sp.from == null || (preventCursorLeft ? sp.from <= pos.ch : sp.from < pos.ch)) &&
|
|
(sp.to == null || (preventCursorRight ? sp.to >= pos.ch : sp.to > pos.ch))) {
|
|
if (mayClear) {
|
|
signal(m, "beforeCursorEnter");
|
|
if (m.explicitlyCleared) {
|
|
if (!line.markedSpans) { break }
|
|
else {--i; continue}
|
|
}
|
|
}
|
|
if (!m.atomic) { continue }
|
|
|
|
if (oldPos) {
|
|
var near = m.find(dir < 0 ? 1 : -1), diff = (void 0);
|
|
if (dir < 0 ? preventCursorRight : preventCursorLeft)
|
|
{ near = movePos(doc, near, -dir, near && near.line == pos.line ? line : null); }
|
|
if (near && near.line == pos.line && (diff = cmp(near, oldPos)) && (dir < 0 ? diff < 0 : diff > 0))
|
|
{ return skipAtomicInner(doc, near, pos, dir, mayClear) }
|
|
}
|
|
|
|
var far = m.find(dir < 0 ? -1 : 1);
|
|
if (dir < 0 ? preventCursorLeft : preventCursorRight)
|
|
{ far = movePos(doc, far, dir, far.line == pos.line ? line : null); }
|
|
return far ? skipAtomicInner(doc, far, pos, dir, mayClear) : null
|
|
}
|
|
} }
|
|
return pos
|
|
}
|
|
|
|
// Ensure a given position is not inside an atomic range.
|
|
function skipAtomic(doc, pos, oldPos, bias, mayClear) {
|
|
var dir = bias || 1;
|
|
var found = skipAtomicInner(doc, pos, oldPos, dir, mayClear) ||
|
|
(!mayClear && skipAtomicInner(doc, pos, oldPos, dir, true)) ||
|
|
skipAtomicInner(doc, pos, oldPos, -dir, mayClear) ||
|
|
(!mayClear && skipAtomicInner(doc, pos, oldPos, -dir, true));
|
|
if (!found) {
|
|
doc.cantEdit = true;
|
|
return Pos(doc.first, 0)
|
|
}
|
|
return found
|
|
}
|
|
|
|
function movePos(doc, pos, dir, line) {
|
|
if (dir < 0 && pos.ch == 0) {
|
|
if (pos.line > doc.first) { return clipPos(doc, Pos(pos.line - 1)) }
|
|
else { return null }
|
|
} else if (dir > 0 && pos.ch == (line || getLine(doc, pos.line)).text.length) {
|
|
if (pos.line < doc.first + doc.size - 1) { return Pos(pos.line + 1, 0) }
|
|
else { return null }
|
|
} else {
|
|
return new Pos(pos.line, pos.ch + dir)
|
|
}
|
|
}
|
|
|
|
function selectAll(cm) {
|
|
cm.setSelection(Pos(cm.firstLine(), 0), Pos(cm.lastLine()), sel_dontScroll);
|
|
}
|
|
|
|
// UPDATING
|
|
|
|
// Allow "beforeChange" event handlers to influence a change
|
|
function filterChange(doc, change, update) {
|
|
var obj = {
|
|
canceled: false,
|
|
from: change.from,
|
|
to: change.to,
|
|
text: change.text,
|
|
origin: change.origin,
|
|
cancel: function () { return obj.canceled = true; }
|
|
};
|
|
if (update) { obj.update = function (from, to, text, origin) {
|
|
if (from) { obj.from = clipPos(doc, from); }
|
|
if (to) { obj.to = clipPos(doc, to); }
|
|
if (text) { obj.text = text; }
|
|
if (origin !== undefined) { obj.origin = origin; }
|
|
}; }
|
|
signal(doc, "beforeChange", doc, obj);
|
|
if (doc.cm) { signal(doc.cm, "beforeChange", doc.cm, obj); }
|
|
|
|
if (obj.canceled) {
|
|
if (doc.cm) { doc.cm.curOp.updateInput = 2; }
|
|
return null
|
|
}
|
|
return {from: obj.from, to: obj.to, text: obj.text, origin: obj.origin}
|
|
}
|
|
|
|
// Apply a change to a document, and add it to the document's
|
|
// history, and propagating it to all linked documents.
|
|
function makeChange(doc, change, ignoreReadOnly) {
|
|
if (doc.cm) {
|
|
if (!doc.cm.curOp) { return operation(doc.cm, makeChange)(doc, change, ignoreReadOnly) }
|
|
if (doc.cm.state.suppressEdits) { return }
|
|
}
|
|
|
|
if (hasHandler(doc, "beforeChange") || doc.cm && hasHandler(doc.cm, "beforeChange")) {
|
|
change = filterChange(doc, change, true);
|
|
if (!change) { return }
|
|
}
|
|
|
|
// Possibly split or suppress the update based on the presence
|
|
// of read-only spans in its range.
|
|
var split = sawReadOnlySpans && !ignoreReadOnly && removeReadOnlyRanges(doc, change.from, change.to);
|
|
if (split) {
|
|
for (var i = split.length - 1; i >= 0; --i)
|
|
{ makeChangeInner(doc, {from: split[i].from, to: split[i].to, text: i ? [""] : change.text, origin: change.origin}); }
|
|
} else {
|
|
makeChangeInner(doc, change);
|
|
}
|
|
}
|
|
|
|
function makeChangeInner(doc, change) {
|
|
if (change.text.length == 1 && change.text[0] == "" && cmp(change.from, change.to) == 0) { return }
|
|
var selAfter = computeSelAfterChange(doc, change);
|
|
addChangeToHistory(doc, change, selAfter, doc.cm ? doc.cm.curOp.id : NaN);
|
|
|
|
makeChangeSingleDoc(doc, change, selAfter, stretchSpansOverChange(doc, change));
|
|
var rebased = [];
|
|
|
|
linkedDocs(doc, function (doc, sharedHist) {
|
|
if (!sharedHist && indexOf(rebased, doc.history) == -1) {
|
|
rebaseHist(doc.history, change);
|
|
rebased.push(doc.history);
|
|
}
|
|
makeChangeSingleDoc(doc, change, null, stretchSpansOverChange(doc, change));
|
|
});
|
|
}
|
|
|
|
// Revert a change stored in a document's history.
|
|
function makeChangeFromHistory(doc, type, allowSelectionOnly) {
|
|
var suppress = doc.cm && doc.cm.state.suppressEdits;
|
|
if (suppress && !allowSelectionOnly) { return }
|
|
|
|
var hist = doc.history, event, selAfter = doc.sel;
|
|
var source = type == "undo" ? hist.done : hist.undone, dest = type == "undo" ? hist.undone : hist.done;
|
|
|
|
// Verify that there is a useable event (so that ctrl-z won't
|
|
// needlessly clear selection events)
|
|
var i = 0;
|
|
for (; i < source.length; i++) {
|
|
event = source[i];
|
|
if (allowSelectionOnly ? event.ranges && !event.equals(doc.sel) : !event.ranges)
|
|
{ break }
|
|
}
|
|
if (i == source.length) { return }
|
|
hist.lastOrigin = hist.lastSelOrigin = null;
|
|
|
|
for (;;) {
|
|
event = source.pop();
|
|
if (event.ranges) {
|
|
pushSelectionToHistory(event, dest);
|
|
if (allowSelectionOnly && !event.equals(doc.sel)) {
|
|
setSelection(doc, event, {clearRedo: false});
|
|
return
|
|
}
|
|
selAfter = event;
|
|
} else if (suppress) {
|
|
source.push(event);
|
|
return
|
|
} else { break }
|
|
}
|
|
|
|
// Build up a reverse change object to add to the opposite history
|
|
// stack (redo when undoing, and vice versa).
|
|
var antiChanges = [];
|
|
pushSelectionToHistory(selAfter, dest);
|
|
dest.push({changes: antiChanges, generation: hist.generation});
|
|
hist.generation = event.generation || ++hist.maxGeneration;
|
|
|
|
var filter = hasHandler(doc, "beforeChange") || doc.cm && hasHandler(doc.cm, "beforeChange");
|
|
|
|
var loop = function ( i ) {
|
|
var change = event.changes[i];
|
|
change.origin = type;
|
|
if (filter && !filterChange(doc, change, false)) {
|
|
source.length = 0;
|
|
return {}
|
|
}
|
|
|
|
antiChanges.push(historyChangeFromChange(doc, change));
|
|
|
|
var after = i ? computeSelAfterChange(doc, change) : lst(source);
|
|
makeChangeSingleDoc(doc, change, after, mergeOldSpans(doc, change));
|
|
if (!i && doc.cm) { doc.cm.scrollIntoView({from: change.from, to: changeEnd(change)}); }
|
|
var rebased = [];
|
|
|
|
// Propagate to the linked documents
|
|
linkedDocs(doc, function (doc, sharedHist) {
|
|
if (!sharedHist && indexOf(rebased, doc.history) == -1) {
|
|
rebaseHist(doc.history, change);
|
|
rebased.push(doc.history);
|
|
}
|
|
makeChangeSingleDoc(doc, change, null, mergeOldSpans(doc, change));
|
|
});
|
|
};
|
|
|
|
for (var i$1 = event.changes.length - 1; i$1 >= 0; --i$1) {
|
|
var returned = loop( i$1 );
|
|
|
|
if ( returned ) return returned.v;
|
|
}
|
|
}
|
|
|
|
// Sub-views need their line numbers shifted when text is added
|
|
// above or below them in the parent document.
|
|
function shiftDoc(doc, distance) {
|
|
if (distance == 0) { return }
|
|
doc.first += distance;
|
|
doc.sel = new Selection(map(doc.sel.ranges, function (range) { return new Range(
|
|
Pos(range.anchor.line + distance, range.anchor.ch),
|
|
Pos(range.head.line + distance, range.head.ch)
|
|
); }), doc.sel.primIndex);
|
|
if (doc.cm) {
|
|
regChange(doc.cm, doc.first, doc.first - distance, distance);
|
|
for (var d = doc.cm.display, l = d.viewFrom; l < d.viewTo; l++)
|
|
{ regLineChange(doc.cm, l, "gutter"); }
|
|
}
|
|
}
|
|
|
|
// More lower-level change function, handling only a single document
|
|
// (not linked ones).
|
|
function makeChangeSingleDoc(doc, change, selAfter, spans) {
|
|
if (doc.cm && !doc.cm.curOp)
|
|
{ return operation(doc.cm, makeChangeSingleDoc)(doc, change, selAfter, spans) }
|
|
|
|
if (change.to.line < doc.first) {
|
|
shiftDoc(doc, change.text.length - 1 - (change.to.line - change.from.line));
|
|
return
|
|
}
|
|
if (change.from.line > doc.lastLine()) { return }
|
|
|
|
// Clip the change to the size of this doc
|
|
if (change.from.line < doc.first) {
|
|
var shift = change.text.length - 1 - (doc.first - change.from.line);
|
|
shiftDoc(doc, shift);
|
|
change = {from: Pos(doc.first, 0), to: Pos(change.to.line + shift, change.to.ch),
|
|
text: [lst(change.text)], origin: change.origin};
|
|
}
|
|
var last = doc.lastLine();
|
|
if (change.to.line > last) {
|
|
change = {from: change.from, to: Pos(last, getLine(doc, last).text.length),
|
|
text: [change.text[0]], origin: change.origin};
|
|
}
|
|
|
|
change.removed = getBetween(doc, change.from, change.to);
|
|
|
|
if (!selAfter) { selAfter = computeSelAfterChange(doc, change); }
|
|
if (doc.cm) { makeChangeSingleDocInEditor(doc.cm, change, spans); }
|
|
else { updateDoc(doc, change, spans); }
|
|
setSelectionNoUndo(doc, selAfter, sel_dontScroll);
|
|
|
|
if (doc.cantEdit && skipAtomic(doc, Pos(doc.firstLine(), 0)))
|
|
{ doc.cantEdit = false; }
|
|
}
|
|
|
|
// Handle the interaction of a change to a document with the editor
|
|
// that this document is part of.
|
|
function makeChangeSingleDocInEditor(cm, change, spans) {
|
|
var doc = cm.doc, display = cm.display, from = change.from, to = change.to;
|
|
|
|
var recomputeMaxLength = false, checkWidthStart = from.line;
|
|
if (!cm.options.lineWrapping) {
|
|
checkWidthStart = lineNo(visualLine(getLine(doc, from.line)));
|
|
doc.iter(checkWidthStart, to.line + 1, function (line) {
|
|
if (line == display.maxLine) {
|
|
recomputeMaxLength = true;
|
|
return true
|
|
}
|
|
});
|
|
}
|
|
|
|
if (doc.sel.contains(change.from, change.to) > -1)
|
|
{ signalCursorActivity(cm); }
|
|
|
|
updateDoc(doc, change, spans, estimateHeight(cm));
|
|
|
|
if (!cm.options.lineWrapping) {
|
|
doc.iter(checkWidthStart, from.line + change.text.length, function (line) {
|
|
var len = lineLength(line);
|
|
if (len > display.maxLineLength) {
|
|
display.maxLine = line;
|
|
display.maxLineLength = len;
|
|
display.maxLineChanged = true;
|
|
recomputeMaxLength = false;
|
|
}
|
|
});
|
|
if (recomputeMaxLength) { cm.curOp.updateMaxLine = true; }
|
|
}
|
|
|
|
retreatFrontier(doc, from.line);
|
|
startWorker(cm, 400);
|
|
|
|
var lendiff = change.text.length - (to.line - from.line) - 1;
|
|
// Remember that these lines changed, for updating the display
|
|
if (change.full)
|
|
{ regChange(cm); }
|
|
else if (from.line == to.line && change.text.length == 1 && !isWholeLineUpdate(cm.doc, change))
|
|
{ regLineChange(cm, from.line, "text"); }
|
|
else
|
|
{ regChange(cm, from.line, to.line + 1, lendiff); }
|
|
|
|
var changesHandler = hasHandler(cm, "changes"), changeHandler = hasHandler(cm, "change");
|
|
if (changeHandler || changesHandler) {
|
|
var obj = {
|
|
from: from, to: to,
|
|
text: change.text,
|
|
removed: change.removed,
|
|
origin: change.origin
|
|
};
|
|
if (changeHandler) { signalLater(cm, "change", cm, obj); }
|
|
if (changesHandler) { (cm.curOp.changeObjs || (cm.curOp.changeObjs = [])).push(obj); }
|
|
}
|
|
cm.display.selForContextMenu = null;
|
|
}
|
|
|
|
function replaceRange(doc, code, from, to, origin) {
|
|
var assign;
|
|
|
|
if (!to) { to = from; }
|
|
if (cmp(to, from) < 0) { (assign = [to, from], from = assign[0], to = assign[1]); }
|
|
if (typeof code == "string") { code = doc.splitLines(code); }
|
|
makeChange(doc, {from: from, to: to, text: code, origin: origin});
|
|
}
|
|
|
|
// Rebasing/resetting history to deal with externally-sourced changes
|
|
|
|
function rebaseHistSelSingle(pos, from, to, diff) {
|
|
if (to < pos.line) {
|
|
pos.line += diff;
|
|
} else if (from < pos.line) {
|
|
pos.line = from;
|
|
pos.ch = 0;
|
|
}
|
|
}
|
|
|
|
// Tries to rebase an array of history events given a change in the
|
|
// document. If the change touches the same lines as the event, the
|
|
// event, and everything 'behind' it, is discarded. If the change is
|
|
// before the event, the event's positions are updated. Uses a
|
|
// copy-on-write scheme for the positions, to avoid having to
|
|
// reallocate them all on every rebase, but also avoid problems with
|
|
// shared position objects being unsafely updated.
|
|
function rebaseHistArray(array, from, to, diff) {
|
|
for (var i = 0; i < array.length; ++i) {
|
|
var sub = array[i], ok = true;
|
|
if (sub.ranges) {
|
|
if (!sub.copied) { sub = array[i] = sub.deepCopy(); sub.copied = true; }
|
|
for (var j = 0; j < sub.ranges.length; j++) {
|
|
rebaseHistSelSingle(sub.ranges[j].anchor, from, to, diff);
|
|
rebaseHistSelSingle(sub.ranges[j].head, from, to, diff);
|
|
}
|
|
continue
|
|
}
|
|
for (var j$1 = 0; j$1 < sub.changes.length; ++j$1) {
|
|
var cur = sub.changes[j$1];
|
|
if (to < cur.from.line) {
|
|
cur.from = Pos(cur.from.line + diff, cur.from.ch);
|
|
cur.to = Pos(cur.to.line + diff, cur.to.ch);
|
|
} else if (from <= cur.to.line) {
|
|
ok = false;
|
|
break
|
|
}
|
|
}
|
|
if (!ok) {
|
|
array.splice(0, i + 1);
|
|
i = 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
function rebaseHist(hist, change) {
|
|
var from = change.from.line, to = change.to.line, diff = change.text.length - (to - from) - 1;
|
|
rebaseHistArray(hist.done, from, to, diff);
|
|
rebaseHistArray(hist.undone, from, to, diff);
|
|
}
|
|
|
|
// Utility for applying a change to a line by handle or number,
|
|
// returning the number and optionally registering the line as
|
|
// changed.
|
|
function changeLine(doc, handle, changeType, op) {
|
|
var no = handle, line = handle;
|
|
if (typeof handle == "number") { line = getLine(doc, clipLine(doc, handle)); }
|
|
else { no = lineNo(handle); }
|
|
if (no == null) { return null }
|
|
if (op(line, no) && doc.cm) { regLineChange(doc.cm, no, changeType); }
|
|
return line
|
|
}
|
|
|
|
// The document is represented as a BTree consisting of leaves, with
|
|
// chunk of lines in them, and branches, with up to ten leaves or
|
|
// other branch nodes below them. The top node is always a branch
|
|
// node, and is the document object itself (meaning it has
|
|
// additional methods and properties).
|
|
//
|
|
// All nodes have parent links. The tree is used both to go from
|
|
// line numbers to line objects, and to go from objects to numbers.
|
|
// It also indexes by height, and is used to convert between height
|
|
// and line object, and to find the total height of the document.
|
|
//
|
|
// See also http://marijnhaverbeke.nl/blog/codemirror-line-tree.html
|
|
|
|
function LeafChunk(lines) {
|
|
this.lines = lines;
|
|
this.parent = null;
|
|
var height = 0;
|
|
for (var i = 0; i < lines.length; ++i) {
|
|
lines[i].parent = this;
|
|
height += lines[i].height;
|
|
}
|
|
this.height = height;
|
|
}
|
|
|
|
LeafChunk.prototype = {
|
|
chunkSize: function() { return this.lines.length },
|
|
|
|
// Remove the n lines at offset 'at'.
|
|
removeInner: function(at, n) {
|
|
for (var i = at, e = at + n; i < e; ++i) {
|
|
var line = this.lines[i];
|
|
this.height -= line.height;
|
|
cleanUpLine(line);
|
|
signalLater(line, "delete");
|
|
}
|
|
this.lines.splice(at, n);
|
|
},
|
|
|
|
// Helper used to collapse a small branch into a single leaf.
|
|
collapse: function(lines) {
|
|
lines.push.apply(lines, this.lines);
|
|
},
|
|
|
|
// Insert the given array of lines at offset 'at', count them as
|
|
// having the given height.
|
|
insertInner: function(at, lines, height) {
|
|
this.height += height;
|
|
this.lines = this.lines.slice(0, at).concat(lines).concat(this.lines.slice(at));
|
|
for (var i = 0; i < lines.length; ++i) { lines[i].parent = this; }
|
|
},
|
|
|
|
// Used to iterate over a part of the tree.
|
|
iterN: function(at, n, op) {
|
|
for (var e = at + n; at < e; ++at)
|
|
{ if (op(this.lines[at])) { return true } }
|
|
}
|
|
};
|
|
|
|
function BranchChunk(children) {
|
|
this.children = children;
|
|
var size = 0, height = 0;
|
|
for (var i = 0; i < children.length; ++i) {
|
|
var ch = children[i];
|
|
size += ch.chunkSize(); height += ch.height;
|
|
ch.parent = this;
|
|
}
|
|
this.size = size;
|
|
this.height = height;
|
|
this.parent = null;
|
|
}
|
|
|
|
BranchChunk.prototype = {
|
|
chunkSize: function() { return this.size },
|
|
|
|
removeInner: function(at, n) {
|
|
this.size -= n;
|
|
for (var i = 0; i < this.children.length; ++i) {
|
|
var child = this.children[i], sz = child.chunkSize();
|
|
if (at < sz) {
|
|
var rm = Math.min(n, sz - at), oldHeight = child.height;
|
|
child.removeInner(at, rm);
|
|
this.height -= oldHeight - child.height;
|
|
if (sz == rm) { this.children.splice(i--, 1); child.parent = null; }
|
|
if ((n -= rm) == 0) { break }
|
|
at = 0;
|
|
} else { at -= sz; }
|
|
}
|
|
// If the result is smaller than 25 lines, ensure that it is a
|
|
// single leaf node.
|
|
if (this.size - n < 25 &&
|
|
(this.children.length > 1 || !(this.children[0] instanceof LeafChunk))) {
|
|
var lines = [];
|
|
this.collapse(lines);
|
|
this.children = [new LeafChunk(lines)];
|
|
this.children[0].parent = this;
|
|
}
|
|
},
|
|
|
|
collapse: function(lines) {
|
|
for (var i = 0; i < this.children.length; ++i) { this.children[i].collapse(lines); }
|
|
},
|
|
|
|
insertInner: function(at, lines, height) {
|
|
this.size += lines.length;
|
|
this.height += height;
|
|
for (var i = 0; i < this.children.length; ++i) {
|
|
var child = this.children[i], sz = child.chunkSize();
|
|
if (at <= sz) {
|
|
child.insertInner(at, lines, height);
|
|
if (child.lines && child.lines.length > 50) {
|
|
// To avoid memory thrashing when child.lines is huge (e.g. first view of a large file), it's never spliced.
|
|
// Instead, small slices are taken. They're taken in order because sequential memory accesses are fastest.
|
|
var remaining = child.lines.length % 25 + 25;
|
|
for (var pos = remaining; pos < child.lines.length;) {
|
|
var leaf = new LeafChunk(child.lines.slice(pos, pos += 25));
|
|
child.height -= leaf.height;
|
|
this.children.splice(++i, 0, leaf);
|
|
leaf.parent = this;
|
|
}
|
|
child.lines = child.lines.slice(0, remaining);
|
|
this.maybeSpill();
|
|
}
|
|
break
|
|
}
|
|
at -= sz;
|
|
}
|
|
},
|
|
|
|
// When a node has grown, check whether it should be split.
|
|
maybeSpill: function() {
|
|
if (this.children.length <= 10) { return }
|
|
var me = this;
|
|
do {
|
|
var spilled = me.children.splice(me.children.length - 5, 5);
|
|
var sibling = new BranchChunk(spilled);
|
|
if (!me.parent) { // Become the parent node
|
|
var copy = new BranchChunk(me.children);
|
|
copy.parent = me;
|
|
me.children = [copy, sibling];
|
|
me = copy;
|
|
} else {
|
|
me.size -= sibling.size;
|
|
me.height -= sibling.height;
|
|
var myIndex = indexOf(me.parent.children, me);
|
|
me.parent.children.splice(myIndex + 1, 0, sibling);
|
|
}
|
|
sibling.parent = me.parent;
|
|
} while (me.children.length > 10)
|
|
me.parent.maybeSpill();
|
|
},
|
|
|
|
iterN: function(at, n, op) {
|
|
for (var i = 0; i < this.children.length; ++i) {
|
|
var child = this.children[i], sz = child.chunkSize();
|
|
if (at < sz) {
|
|
var used = Math.min(n, sz - at);
|
|
if (child.iterN(at, used, op)) { return true }
|
|
if ((n -= used) == 0) { break }
|
|
at = 0;
|
|
} else { at -= sz; }
|
|
}
|
|
}
|
|
};
|
|
|
|
// Line widgets are block elements displayed above or below a line.
|
|
|
|
var LineWidget = function(doc, node, options) {
|
|
if (options) { for (var opt in options) { if (options.hasOwnProperty(opt))
|
|
{ this[opt] = options[opt]; } } }
|
|
this.doc = doc;
|
|
this.node = node;
|
|
};
|
|
|
|
LineWidget.prototype.clear = function () {
|
|
var cm = this.doc.cm, ws = this.line.widgets, line = this.line, no = lineNo(line);
|
|
if (no == null || !ws) { return }
|
|
for (var i = 0; i < ws.length; ++i) { if (ws[i] == this) { ws.splice(i--, 1); } }
|
|
if (!ws.length) { line.widgets = null; }
|
|
var height = widgetHeight(this);
|
|
updateLineHeight(line, Math.max(0, line.height - height));
|
|
if (cm) {
|
|
runInOp(cm, function () {
|
|
adjustScrollWhenAboveVisible(cm, line, -height);
|
|
regLineChange(cm, no, "widget");
|
|
});
|
|
signalLater(cm, "lineWidgetCleared", cm, this, no);
|
|
}
|
|
};
|
|
|
|
LineWidget.prototype.changed = function () {
|
|
var this$1 = this;
|
|
|
|
var oldH = this.height, cm = this.doc.cm, line = this.line;
|
|
this.height = null;
|
|
var diff = widgetHeight(this) - oldH;
|
|
if (!diff) { return }
|
|
if (!lineIsHidden(this.doc, line)) { updateLineHeight(line, line.height + diff); }
|
|
if (cm) {
|
|
runInOp(cm, function () {
|
|
cm.curOp.forceUpdate = true;
|
|
adjustScrollWhenAboveVisible(cm, line, diff);
|
|
signalLater(cm, "lineWidgetChanged", cm, this$1, lineNo(line));
|
|
});
|
|
}
|
|
};
|
|
eventMixin(LineWidget);
|
|
|
|
function adjustScrollWhenAboveVisible(cm, line, diff) {
|
|
if (heightAtLine(line) < ((cm.curOp && cm.curOp.scrollTop) || cm.doc.scrollTop))
|
|
{ addToScrollTop(cm, diff); }
|
|
}
|
|
|
|
function addLineWidget(doc, handle, node, options) {
|
|
var widget = new LineWidget(doc, node, options);
|
|
var cm = doc.cm;
|
|
if (cm && widget.noHScroll) { cm.display.alignWidgets = true; }
|
|
changeLine(doc, handle, "widget", function (line) {
|
|
var widgets = line.widgets || (line.widgets = []);
|
|
if (widget.insertAt == null) { widgets.push(widget); }
|
|
else { widgets.splice(Math.min(widgets.length, Math.max(0, widget.insertAt)), 0, widget); }
|
|
widget.line = line;
|
|
if (cm && !lineIsHidden(doc, line)) {
|
|
var aboveVisible = heightAtLine(line) < doc.scrollTop;
|
|
updateLineHeight(line, line.height + widgetHeight(widget));
|
|
if (aboveVisible) { addToScrollTop(cm, widget.height); }
|
|
cm.curOp.forceUpdate = true;
|
|
}
|
|
return true
|
|
});
|
|
if (cm) { signalLater(cm, "lineWidgetAdded", cm, widget, typeof handle == "number" ? handle : lineNo(handle)); }
|
|
return widget
|
|
}
|
|
|
|
// TEXTMARKERS
|
|
|
|
// Created with markText and setBookmark methods. A TextMarker is a
|
|
// handle that can be used to clear or find a marked position in the
|
|
// document. Line objects hold arrays (markedSpans) containing
|
|
// {from, to, marker} object pointing to such marker objects, and
|
|
// indicating that such a marker is present on that line. Multiple
|
|
// lines may point to the same marker when it spans across lines.
|
|
// The spans will have null for their from/to properties when the
|
|
// marker continues beyond the start/end of the line. Markers have
|
|
// links back to the lines they currently touch.
|
|
|
|
// Collapsed markers have unique ids, in order to be able to order
|
|
// them, which is needed for uniquely determining an outer marker
|
|
// when they overlap (they may nest, but not partially overlap).
|
|
var nextMarkerId = 0;
|
|
|
|
var TextMarker = function(doc, type) {
|
|
this.lines = [];
|
|
this.type = type;
|
|
this.doc = doc;
|
|
this.id = ++nextMarkerId;
|
|
};
|
|
|
|
// Clear the marker.
|
|
TextMarker.prototype.clear = function () {
|
|
if (this.explicitlyCleared) { return }
|
|
var cm = this.doc.cm, withOp = cm && !cm.curOp;
|
|
if (withOp) { startOperation(cm); }
|
|
if (hasHandler(this, "clear")) {
|
|
var found = this.find();
|
|
if (found) { signalLater(this, "clear", found.from, found.to); }
|
|
}
|
|
var min = null, max = null;
|
|
for (var i = 0; i < this.lines.length; ++i) {
|
|
var line = this.lines[i];
|
|
var span = getMarkedSpanFor(line.markedSpans, this);
|
|
if (cm && !this.collapsed) { regLineChange(cm, lineNo(line), "text"); }
|
|
else if (cm) {
|
|
if (span.to != null) { max = lineNo(line); }
|
|
if (span.from != null) { min = lineNo(line); }
|
|
}
|
|
line.markedSpans = removeMarkedSpan(line.markedSpans, span);
|
|
if (span.from == null && this.collapsed && !lineIsHidden(this.doc, line) && cm)
|
|
{ updateLineHeight(line, textHeight(cm.display)); }
|
|
}
|
|
if (cm && this.collapsed && !cm.options.lineWrapping) { for (var i$1 = 0; i$1 < this.lines.length; ++i$1) {
|
|
var visual = visualLine(this.lines[i$1]), len = lineLength(visual);
|
|
if (len > cm.display.maxLineLength) {
|
|
cm.display.maxLine = visual;
|
|
cm.display.maxLineLength = len;
|
|
cm.display.maxLineChanged = true;
|
|
}
|
|
} }
|
|
|
|
if (min != null && cm && this.collapsed) { regChange(cm, min, max + 1); }
|
|
this.lines.length = 0;
|
|
this.explicitlyCleared = true;
|
|
if (this.atomic && this.doc.cantEdit) {
|
|
this.doc.cantEdit = false;
|
|
if (cm) { reCheckSelection(cm.doc); }
|
|
}
|
|
if (cm) { signalLater(cm, "markerCleared", cm, this, min, max); }
|
|
if (withOp) { endOperation(cm); }
|
|
if (this.parent) { this.parent.clear(); }
|
|
};
|
|
|
|
// Find the position of the marker in the document. Returns a {from,
|
|
// to} object by default. Side can be passed to get a specific side
|
|
// -- 0 (both), -1 (left), or 1 (right). When lineObj is true, the
|
|
// Pos objects returned contain a line object, rather than a line
|
|
// number (used to prevent looking up the same line twice).
|
|
TextMarker.prototype.find = function (side, lineObj) {
|
|
if (side == null && this.type == "bookmark") { side = 1; }
|
|
var from, to;
|
|
for (var i = 0; i < this.lines.length; ++i) {
|
|
var line = this.lines[i];
|
|
var span = getMarkedSpanFor(line.markedSpans, this);
|
|
if (span.from != null) {
|
|
from = Pos(lineObj ? line : lineNo(line), span.from);
|
|
if (side == -1) { return from }
|
|
}
|
|
if (span.to != null) {
|
|
to = Pos(lineObj ? line : lineNo(line), span.to);
|
|
if (side == 1) { return to }
|
|
}
|
|
}
|
|
return from && {from: from, to: to}
|
|
};
|
|
|
|
// Signals that the marker's widget changed, and surrounding layout
|
|
// should be recomputed.
|
|
TextMarker.prototype.changed = function () {
|
|
var this$1 = this;
|
|
|
|
var pos = this.find(-1, true), widget = this, cm = this.doc.cm;
|
|
if (!pos || !cm) { return }
|
|
runInOp(cm, function () {
|
|
var line = pos.line, lineN = lineNo(pos.line);
|
|
var view = findViewForLine(cm, lineN);
|
|
if (view) {
|
|
clearLineMeasurementCacheFor(view);
|
|
cm.curOp.selectionChanged = cm.curOp.forceUpdate = true;
|
|
}
|
|
cm.curOp.updateMaxLine = true;
|
|
if (!lineIsHidden(widget.doc, line) && widget.height != null) {
|
|
var oldHeight = widget.height;
|
|
widget.height = null;
|
|
var dHeight = widgetHeight(widget) - oldHeight;
|
|
if (dHeight)
|
|
{ updateLineHeight(line, line.height + dHeight); }
|
|
}
|
|
signalLater(cm, "markerChanged", cm, this$1);
|
|
});
|
|
};
|
|
|
|
TextMarker.prototype.attachLine = function (line) {
|
|
if (!this.lines.length && this.doc.cm) {
|
|
var op = this.doc.cm.curOp;
|
|
if (!op.maybeHiddenMarkers || indexOf(op.maybeHiddenMarkers, this) == -1)
|
|
{ (op.maybeUnhiddenMarkers || (op.maybeUnhiddenMarkers = [])).push(this); }
|
|
}
|
|
this.lines.push(line);
|
|
};
|
|
|
|
TextMarker.prototype.detachLine = function (line) {
|
|
this.lines.splice(indexOf(this.lines, line), 1);
|
|
if (!this.lines.length && this.doc.cm) {
|
|
var op = this.doc.cm.curOp
|
|
;(op.maybeHiddenMarkers || (op.maybeHiddenMarkers = [])).push(this);
|
|
}
|
|
};
|
|
eventMixin(TextMarker);
|
|
|
|
// Create a marker, wire it up to the right lines, and
|
|
function markText(doc, from, to, options, type) {
|
|
// Shared markers (across linked documents) are handled separately
|
|
// (markTextShared will call out to this again, once per
|
|
// document).
|
|
if (options && options.shared) { return markTextShared(doc, from, to, options, type) }
|
|
// Ensure we are in an operation.
|
|
if (doc.cm && !doc.cm.curOp) { return operation(doc.cm, markText)(doc, from, to, options, type) }
|
|
|
|
var marker = new TextMarker(doc, type), diff = cmp(from, to);
|
|
if (options) { copyObj(options, marker, false); }
|
|
// Don't connect empty markers unless clearWhenEmpty is false
|
|
if (diff > 0 || diff == 0 && marker.clearWhenEmpty !== false)
|
|
{ return marker }
|
|
if (marker.replacedWith) {
|
|
// Showing up as a widget implies collapsed (widget replaces text)
|
|
marker.collapsed = true;
|
|
marker.widgetNode = eltP("span", [marker.replacedWith], "CodeMirror-widget");
|
|
if (!options.handleMouseEvents) { marker.widgetNode.setAttribute("cm-ignore-events", "true"); }
|
|
if (options.insertLeft) { marker.widgetNode.insertLeft = true; }
|
|
}
|
|
if (marker.collapsed) {
|
|
if (conflictingCollapsedRange(doc, from.line, from, to, marker) ||
|
|
from.line != to.line && conflictingCollapsedRange(doc, to.line, from, to, marker))
|
|
{ throw new Error("Inserting collapsed marker partially overlapping an existing one") }
|
|
seeCollapsedSpans();
|
|
}
|
|
|
|
if (marker.addToHistory)
|
|
{ addChangeToHistory(doc, {from: from, to: to, origin: "markText"}, doc.sel, NaN); }
|
|
|
|
var curLine = from.line, cm = doc.cm, updateMaxLine;
|
|
doc.iter(curLine, to.line + 1, function (line) {
|
|
if (cm && marker.collapsed && !cm.options.lineWrapping && visualLine(line) == cm.display.maxLine)
|
|
{ updateMaxLine = true; }
|
|
if (marker.collapsed && curLine != from.line) { updateLineHeight(line, 0); }
|
|
addMarkedSpan(line, new MarkedSpan(marker,
|
|
curLine == from.line ? from.ch : null,
|
|
curLine == to.line ? to.ch : null), doc.cm && doc.cm.curOp);
|
|
++curLine;
|
|
});
|
|
// lineIsHidden depends on the presence of the spans, so needs a second pass
|
|
if (marker.collapsed) { doc.iter(from.line, to.line + 1, function (line) {
|
|
if (lineIsHidden(doc, line)) { updateLineHeight(line, 0); }
|
|
}); }
|
|
|
|
if (marker.clearOnEnter) { on(marker, "beforeCursorEnter", function () { return marker.clear(); }); }
|
|
|
|
if (marker.readOnly) {
|
|
seeReadOnlySpans();
|
|
if (doc.history.done.length || doc.history.undone.length)
|
|
{ doc.clearHistory(); }
|
|
}
|
|
if (marker.collapsed) {
|
|
marker.id = ++nextMarkerId;
|
|
marker.atomic = true;
|
|
}
|
|
if (cm) {
|
|
// Sync editor state
|
|
if (updateMaxLine) { cm.curOp.updateMaxLine = true; }
|
|
if (marker.collapsed)
|
|
{ regChange(cm, from.line, to.line + 1); }
|
|
else if (marker.className || marker.startStyle || marker.endStyle || marker.css ||
|
|
marker.attributes || marker.title)
|
|
{ for (var i = from.line; i <= to.line; i++) { regLineChange(cm, i, "text"); } }
|
|
if (marker.atomic) { reCheckSelection(cm.doc); }
|
|
signalLater(cm, "markerAdded", cm, marker);
|
|
}
|
|
return marker
|
|
}
|
|
|
|
// SHARED TEXTMARKERS
|
|
|
|
// A shared marker spans multiple linked documents. It is
|
|
// implemented as a meta-marker-object controlling multiple normal
|
|
// markers.
|
|
var SharedTextMarker = function(markers, primary) {
|
|
this.markers = markers;
|
|
this.primary = primary;
|
|
for (var i = 0; i < markers.length; ++i)
|
|
{ markers[i].parent = this; }
|
|
};
|
|
|
|
SharedTextMarker.prototype.clear = function () {
|
|
if (this.explicitlyCleared) { return }
|
|
this.explicitlyCleared = true;
|
|
for (var i = 0; i < this.markers.length; ++i)
|
|
{ this.markers[i].clear(); }
|
|
signalLater(this, "clear");
|
|
};
|
|
|
|
SharedTextMarker.prototype.find = function (side, lineObj) {
|
|
return this.primary.find(side, lineObj)
|
|
};
|
|
eventMixin(SharedTextMarker);
|
|
|
|
function markTextShared(doc, from, to, options, type) {
|
|
options = copyObj(options);
|
|
options.shared = false;
|
|
var markers = [markText(doc, from, to, options, type)], primary = markers[0];
|
|
var widget = options.widgetNode;
|
|
linkedDocs(doc, function (doc) {
|
|
if (widget) { options.widgetNode = widget.cloneNode(true); }
|
|
markers.push(markText(doc, clipPos(doc, from), clipPos(doc, to), options, type));
|
|
for (var i = 0; i < doc.linked.length; ++i)
|
|
{ if (doc.linked[i].isParent) { return } }
|
|
primary = lst(markers);
|
|
});
|
|
return new SharedTextMarker(markers, primary)
|
|
}
|
|
|
|
function findSharedMarkers(doc) {
|
|
return doc.findMarks(Pos(doc.first, 0), doc.clipPos(Pos(doc.lastLine())), function (m) { return m.parent; })
|
|
}
|
|
|
|
function copySharedMarkers(doc, markers) {
|
|
for (var i = 0; i < markers.length; i++) {
|
|
var marker = markers[i], pos = marker.find();
|
|
var mFrom = doc.clipPos(pos.from), mTo = doc.clipPos(pos.to);
|
|
if (cmp(mFrom, mTo)) {
|
|
var subMark = markText(doc, mFrom, mTo, marker.primary, marker.primary.type);
|
|
marker.markers.push(subMark);
|
|
subMark.parent = marker;
|
|
}
|
|
}
|
|
}
|
|
|
|
function detachSharedMarkers(markers) {
|
|
var loop = function ( i ) {
|
|
var marker = markers[i], linked = [marker.primary.doc];
|
|
linkedDocs(marker.primary.doc, function (d) { return linked.push(d); });
|
|
for (var j = 0; j < marker.markers.length; j++) {
|
|
var subMarker = marker.markers[j];
|
|
if (indexOf(linked, subMarker.doc) == -1) {
|
|
subMarker.parent = null;
|
|
marker.markers.splice(j--, 1);
|
|
}
|
|
}
|
|
};
|
|
|
|
for (var i = 0; i < markers.length; i++) loop( i );
|
|
}
|
|
|
|
var nextDocId = 0;
|
|
var Doc = function(text, mode, firstLine, lineSep, direction) {
|
|
if (!(this instanceof Doc)) { return new Doc(text, mode, firstLine, lineSep, direction) }
|
|
if (firstLine == null) { firstLine = 0; }
|
|
|
|
BranchChunk.call(this, [new LeafChunk([new Line("", null)])]);
|
|
this.first = firstLine;
|
|
this.scrollTop = this.scrollLeft = 0;
|
|
this.cantEdit = false;
|
|
this.cleanGeneration = 1;
|
|
this.modeFrontier = this.highlightFrontier = firstLine;
|
|
var start = Pos(firstLine, 0);
|
|
this.sel = simpleSelection(start);
|
|
this.history = new History(null);
|
|
this.id = ++nextDocId;
|
|
this.modeOption = mode;
|
|
this.lineSep = lineSep;
|
|
this.direction = (direction == "rtl") ? "rtl" : "ltr";
|
|
this.extend = false;
|
|
|
|
if (typeof text == "string") { text = this.splitLines(text); }
|
|
updateDoc(this, {from: start, to: start, text: text});
|
|
setSelection(this, simpleSelection(start), sel_dontScroll);
|
|
};
|
|
|
|
Doc.prototype = createObj(BranchChunk.prototype, {
|
|
constructor: Doc,
|
|
// Iterate over the document. Supports two forms -- with only one
|
|
// argument, it calls that for each line in the document. With
|
|
// three, it iterates over the range given by the first two (with
|
|
// the second being non-inclusive).
|
|
iter: function(from, to, op) {
|
|
if (op) { this.iterN(from - this.first, to - from, op); }
|
|
else { this.iterN(this.first, this.first + this.size, from); }
|
|
},
|
|
|
|
// Non-public interface for adding and removing lines.
|
|
insert: function(at, lines) {
|
|
var height = 0;
|
|
for (var i = 0; i < lines.length; ++i) { height += lines[i].height; }
|
|
this.insertInner(at - this.first, lines, height);
|
|
},
|
|
remove: function(at, n) { this.removeInner(at - this.first, n); },
|
|
|
|
// From here, the methods are part of the public interface. Most
|
|
// are also available from CodeMirror (editor) instances.
|
|
|
|
getValue: function(lineSep) {
|
|
var lines = getLines(this, this.first, this.first + this.size);
|
|
if (lineSep === false) { return lines }
|
|
return lines.join(lineSep || this.lineSeparator())
|
|
},
|
|
setValue: docMethodOp(function(code) {
|
|
var top = Pos(this.first, 0), last = this.first + this.size - 1;
|
|
makeChange(this, {from: top, to: Pos(last, getLine(this, last).text.length),
|
|
text: this.splitLines(code), origin: "setValue", full: true}, true);
|
|
if (this.cm) { scrollToCoords(this.cm, 0, 0); }
|
|
setSelection(this, simpleSelection(top), sel_dontScroll);
|
|
}),
|
|
replaceRange: function(code, from, to, origin) {
|
|
from = clipPos(this, from);
|
|
to = to ? clipPos(this, to) : from;
|
|
replaceRange(this, code, from, to, origin);
|
|
},
|
|
getRange: function(from, to, lineSep) {
|
|
var lines = getBetween(this, clipPos(this, from), clipPos(this, to));
|
|
if (lineSep === false) { return lines }
|
|
if (lineSep === '') { return lines.join('') }
|
|
return lines.join(lineSep || this.lineSeparator())
|
|
},
|
|
|
|
getLine: function(line) {var l = this.getLineHandle(line); return l && l.text},
|
|
|
|
getLineHandle: function(line) {if (isLine(this, line)) { return getLine(this, line) }},
|
|
getLineNumber: function(line) {return lineNo(line)},
|
|
|
|
getLineHandleVisualStart: function(line) {
|
|
if (typeof line == "number") { line = getLine(this, line); }
|
|
return visualLine(line)
|
|
},
|
|
|
|
lineCount: function() {return this.size},
|
|
firstLine: function() {return this.first},
|
|
lastLine: function() {return this.first + this.size - 1},
|
|
|
|
clipPos: function(pos) {return clipPos(this, pos)},
|
|
|
|
getCursor: function(start) {
|
|
var range = this.sel.primary(), pos;
|
|
if (start == null || start == "head") { pos = range.head; }
|
|
else if (start == "anchor") { pos = range.anchor; }
|
|
else if (start == "end" || start == "to" || start === false) { pos = range.to(); }
|
|
else { pos = range.from(); }
|
|
return pos
|
|
},
|
|
listSelections: function() { return this.sel.ranges },
|
|
somethingSelected: function() {return this.sel.somethingSelected()},
|
|
|
|
setCursor: docMethodOp(function(line, ch, options) {
|
|
setSimpleSelection(this, clipPos(this, typeof line == "number" ? Pos(line, ch || 0) : line), null, options);
|
|
}),
|
|
setSelection: docMethodOp(function(anchor, head, options) {
|
|
setSimpleSelection(this, clipPos(this, anchor), clipPos(this, head || anchor), options);
|
|
}),
|
|
extendSelection: docMethodOp(function(head, other, options) {
|
|
extendSelection(this, clipPos(this, head), other && clipPos(this, other), options);
|
|
}),
|
|
extendSelections: docMethodOp(function(heads, options) {
|
|
extendSelections(this, clipPosArray(this, heads), options);
|
|
}),
|
|
extendSelectionsBy: docMethodOp(function(f, options) {
|
|
var heads = map(this.sel.ranges, f);
|
|
extendSelections(this, clipPosArray(this, heads), options);
|
|
}),
|
|
setSelections: docMethodOp(function(ranges, primary, options) {
|
|
if (!ranges.length) { return }
|
|
var out = [];
|
|
for (var i = 0; i < ranges.length; i++)
|
|
{ out[i] = new Range(clipPos(this, ranges[i].anchor),
|
|
clipPos(this, ranges[i].head || ranges[i].anchor)); }
|
|
if (primary == null) { primary = Math.min(ranges.length - 1, this.sel.primIndex); }
|
|
setSelection(this, normalizeSelection(this.cm, out, primary), options);
|
|
}),
|
|
addSelection: docMethodOp(function(anchor, head, options) {
|
|
var ranges = this.sel.ranges.slice(0);
|
|
ranges.push(new Range(clipPos(this, anchor), clipPos(this, head || anchor)));
|
|
setSelection(this, normalizeSelection(this.cm, ranges, ranges.length - 1), options);
|
|
}),
|
|
|
|
getSelection: function(lineSep) {
|
|
var ranges = this.sel.ranges, lines;
|
|
for (var i = 0; i < ranges.length; i++) {
|
|
var sel = getBetween(this, ranges[i].from(), ranges[i].to());
|
|
lines = lines ? lines.concat(sel) : sel;
|
|
}
|
|
if (lineSep === false) { return lines }
|
|
else { return lines.join(lineSep || this.lineSeparator()) }
|
|
},
|
|
getSelections: function(lineSep) {
|
|
var parts = [], ranges = this.sel.ranges;
|
|
for (var i = 0; i < ranges.length; i++) {
|
|
var sel = getBetween(this, ranges[i].from(), ranges[i].to());
|
|
if (lineSep !== false) { sel = sel.join(lineSep || this.lineSeparator()); }
|
|
parts[i] = sel;
|
|
}
|
|
return parts
|
|
},
|
|
replaceSelection: function(code, collapse, origin) {
|
|
var dup = [];
|
|
for (var i = 0; i < this.sel.ranges.length; i++)
|
|
{ dup[i] = code; }
|
|
this.replaceSelections(dup, collapse, origin || "+input");
|
|
},
|
|
replaceSelections: docMethodOp(function(code, collapse, origin) {
|
|
var changes = [], sel = this.sel;
|
|
for (var i = 0; i < sel.ranges.length; i++) {
|
|
var range = sel.ranges[i];
|
|
changes[i] = {from: range.from(), to: range.to(), text: this.splitLines(code[i]), origin: origin};
|
|
}
|
|
var newSel = collapse && collapse != "end" && computeReplacedSel(this, changes, collapse);
|
|
for (var i$1 = changes.length - 1; i$1 >= 0; i$1--)
|
|
{ makeChange(this, changes[i$1]); }
|
|
if (newSel) { setSelectionReplaceHistory(this, newSel); }
|
|
else if (this.cm) { ensureCursorVisible(this.cm); }
|
|
}),
|
|
undo: docMethodOp(function() {makeChangeFromHistory(this, "undo");}),
|
|
redo: docMethodOp(function() {makeChangeFromHistory(this, "redo");}),
|
|
undoSelection: docMethodOp(function() {makeChangeFromHistory(this, "undo", true);}),
|
|
redoSelection: docMethodOp(function() {makeChangeFromHistory(this, "redo", true);}),
|
|
|
|
setExtending: function(val) {this.extend = val;},
|
|
getExtending: function() {return this.extend},
|
|
|
|
historySize: function() {
|
|
var hist = this.history, done = 0, undone = 0;
|
|
for (var i = 0; i < hist.done.length; i++) { if (!hist.done[i].ranges) { ++done; } }
|
|
for (var i$1 = 0; i$1 < hist.undone.length; i$1++) { if (!hist.undone[i$1].ranges) { ++undone; } }
|
|
return {undo: done, redo: undone}
|
|
},
|
|
clearHistory: function() {
|
|
var this$1 = this;
|
|
|
|
this.history = new History(this.history);
|
|
linkedDocs(this, function (doc) { return doc.history = this$1.history; }, true);
|
|
},
|
|
|
|
markClean: function() {
|
|
this.cleanGeneration = this.changeGeneration(true);
|
|
},
|
|
changeGeneration: function(forceSplit) {
|
|
if (forceSplit)
|
|
{ this.history.lastOp = this.history.lastSelOp = this.history.lastOrigin = null; }
|
|
return this.history.generation
|
|
},
|
|
isClean: function (gen) {
|
|
return this.history.generation == (gen || this.cleanGeneration)
|
|
},
|
|
|
|
getHistory: function() {
|
|
return {done: copyHistoryArray(this.history.done),
|
|
undone: copyHistoryArray(this.history.undone)}
|
|
},
|
|
setHistory: function(histData) {
|
|
var hist = this.history = new History(this.history);
|
|
hist.done = copyHistoryArray(histData.done.slice(0), null, true);
|
|
hist.undone = copyHistoryArray(histData.undone.slice(0), null, true);
|
|
},
|
|
|
|
setGutterMarker: docMethodOp(function(line, gutterID, value) {
|
|
return changeLine(this, line, "gutter", function (line) {
|
|
var markers = line.gutterMarkers || (line.gutterMarkers = {});
|
|
markers[gutterID] = value;
|
|
if (!value && isEmpty(markers)) { line.gutterMarkers = null; }
|
|
return true
|
|
})
|
|
}),
|
|
|
|
clearGutter: docMethodOp(function(gutterID) {
|
|
var this$1 = this;
|
|
|
|
this.iter(function (line) {
|
|
if (line.gutterMarkers && line.gutterMarkers[gutterID]) {
|
|
changeLine(this$1, line, "gutter", function () {
|
|
line.gutterMarkers[gutterID] = null;
|
|
if (isEmpty(line.gutterMarkers)) { line.gutterMarkers = null; }
|
|
return true
|
|
});
|
|
}
|
|
});
|
|
}),
|
|
|
|
lineInfo: function(line) {
|
|
var n;
|
|
if (typeof line == "number") {
|
|
if (!isLine(this, line)) { return null }
|
|
n = line;
|
|
line = getLine(this, line);
|
|
if (!line) { return null }
|
|
} else {
|
|
n = lineNo(line);
|
|
if (n == null) { return null }
|
|
}
|
|
return {line: n, handle: line, text: line.text, gutterMarkers: line.gutterMarkers,
|
|
textClass: line.textClass, bgClass: line.bgClass, wrapClass: line.wrapClass,
|
|
widgets: line.widgets}
|
|
},
|
|
|
|
addLineClass: docMethodOp(function(handle, where, cls) {
|
|
return changeLine(this, handle, where == "gutter" ? "gutter" : "class", function (line) {
|
|
var prop = where == "text" ? "textClass"
|
|
: where == "background" ? "bgClass"
|
|
: where == "gutter" ? "gutterClass" : "wrapClass";
|
|
if (!line[prop]) { line[prop] = cls; }
|
|
else if (classTest(cls).test(line[prop])) { return false }
|
|
else { line[prop] += " " + cls; }
|
|
return true
|
|
})
|
|
}),
|
|
removeLineClass: docMethodOp(function(handle, where, cls) {
|
|
return changeLine(this, handle, where == "gutter" ? "gutter" : "class", function (line) {
|
|
var prop = where == "text" ? "textClass"
|
|
: where == "background" ? "bgClass"
|
|
: where == "gutter" ? "gutterClass" : "wrapClass";
|
|
var cur = line[prop];
|
|
if (!cur) { return false }
|
|
else if (cls == null) { line[prop] = null; }
|
|
else {
|
|
var found = cur.match(classTest(cls));
|
|
if (!found) { return false }
|
|
var end = found.index + found[0].length;
|
|
line[prop] = cur.slice(0, found.index) + (!found.index || end == cur.length ? "" : " ") + cur.slice(end) || null;
|
|
}
|
|
return true
|
|
})
|
|
}),
|
|
|
|
addLineWidget: docMethodOp(function(handle, node, options) {
|
|
return addLineWidget(this, handle, node, options)
|
|
}),
|
|
removeLineWidget: function(widget) { widget.clear(); },
|
|
|
|
markText: function(from, to, options) {
|
|
return markText(this, clipPos(this, from), clipPos(this, to), options, options && options.type || "range")
|
|
},
|
|
setBookmark: function(pos, options) {
|
|
var realOpts = {replacedWith: options && (options.nodeType == null ? options.widget : options),
|
|
insertLeft: options && options.insertLeft,
|
|
clearWhenEmpty: false, shared: options && options.shared,
|
|
handleMouseEvents: options && options.handleMouseEvents};
|
|
pos = clipPos(this, pos);
|
|
return markText(this, pos, pos, realOpts, "bookmark")
|
|
},
|
|
findMarksAt: function(pos) {
|
|
pos = clipPos(this, pos);
|
|
var markers = [], spans = getLine(this, pos.line).markedSpans;
|
|
if (spans) { for (var i = 0; i < spans.length; ++i) {
|
|
var span = spans[i];
|
|
if ((span.from == null || span.from <= pos.ch) &&
|
|
(span.to == null || span.to >= pos.ch))
|
|
{ markers.push(span.marker.parent || span.marker); }
|
|
} }
|
|
return markers
|
|
},
|
|
findMarks: function(from, to, filter) {
|
|
from = clipPos(this, from); to = clipPos(this, to);
|
|
var found = [], lineNo = from.line;
|
|
this.iter(from.line, to.line + 1, function (line) {
|
|
var spans = line.markedSpans;
|
|
if (spans) { for (var i = 0; i < spans.length; i++) {
|
|
var span = spans[i];
|
|
if (!(span.to != null && lineNo == from.line && from.ch >= span.to ||
|
|
span.from == null && lineNo != from.line ||
|
|
span.from != null && lineNo == to.line && span.from >= to.ch) &&
|
|
(!filter || filter(span.marker)))
|
|
{ found.push(span.marker.parent || span.marker); }
|
|
} }
|
|
++lineNo;
|
|
});
|
|
return found
|
|
},
|
|
getAllMarks: function() {
|
|
var markers = [];
|
|
this.iter(function (line) {
|
|
var sps = line.markedSpans;
|
|
if (sps) { for (var i = 0; i < sps.length; ++i)
|
|
{ if (sps[i].from != null) { markers.push(sps[i].marker); } } }
|
|
});
|
|
return markers
|
|
},
|
|
|
|
posFromIndex: function(off) {
|
|
var ch, lineNo = this.first, sepSize = this.lineSeparator().length;
|
|
this.iter(function (line) {
|
|
var sz = line.text.length + sepSize;
|
|
if (sz > off) { ch = off; return true }
|
|
off -= sz;
|
|
++lineNo;
|
|
});
|
|
return clipPos(this, Pos(lineNo, ch))
|
|
},
|
|
indexFromPos: function (coords) {
|
|
coords = clipPos(this, coords);
|
|
var index = coords.ch;
|
|
if (coords.line < this.first || coords.ch < 0) { return 0 }
|
|
var sepSize = this.lineSeparator().length;
|
|
this.iter(this.first, coords.line, function (line) { // iter aborts when callback returns a truthy value
|
|
index += line.text.length + sepSize;
|
|
});
|
|
return index
|
|
},
|
|
|
|
copy: function(copyHistory) {
|
|
var doc = new Doc(getLines(this, this.first, this.first + this.size),
|
|
this.modeOption, this.first, this.lineSep, this.direction);
|
|
doc.scrollTop = this.scrollTop; doc.scrollLeft = this.scrollLeft;
|
|
doc.sel = this.sel;
|
|
doc.extend = false;
|
|
if (copyHistory) {
|
|
doc.history.undoDepth = this.history.undoDepth;
|
|
doc.setHistory(this.getHistory());
|
|
}
|
|
return doc
|
|
},
|
|
|
|
linkedDoc: function(options) {
|
|
if (!options) { options = {}; }
|
|
var from = this.first, to = this.first + this.size;
|
|
if (options.from != null && options.from > from) { from = options.from; }
|
|
if (options.to != null && options.to < to) { to = options.to; }
|
|
var copy = new Doc(getLines(this, from, to), options.mode || this.modeOption, from, this.lineSep, this.direction);
|
|
if (options.sharedHist) { copy.history = this.history
|
|
; }(this.linked || (this.linked = [])).push({doc: copy, sharedHist: options.sharedHist});
|
|
copy.linked = [{doc: this, isParent: true, sharedHist: options.sharedHist}];
|
|
copySharedMarkers(copy, findSharedMarkers(this));
|
|
return copy
|
|
},
|
|
unlinkDoc: function(other) {
|
|
if (other instanceof CodeMirror) { other = other.doc; }
|
|
if (this.linked) { for (var i = 0; i < this.linked.length; ++i) {
|
|
var link = this.linked[i];
|
|
if (link.doc != other) { continue }
|
|
this.linked.splice(i, 1);
|
|
other.unlinkDoc(this);
|
|
detachSharedMarkers(findSharedMarkers(this));
|
|
break
|
|
} }
|
|
// If the histories were shared, split them again
|
|
if (other.history == this.history) {
|
|
var splitIds = [other.id];
|
|
linkedDocs(other, function (doc) { return splitIds.push(doc.id); }, true);
|
|
other.history = new History(null);
|
|
other.history.done = copyHistoryArray(this.history.done, splitIds);
|
|
other.history.undone = copyHistoryArray(this.history.undone, splitIds);
|
|
}
|
|
},
|
|
iterLinkedDocs: function(f) {linkedDocs(this, f);},
|
|
|
|
getMode: function() {return this.mode},
|
|
getEditor: function() {return this.cm},
|
|
|
|
splitLines: function(str) {
|
|
if (this.lineSep) { return str.split(this.lineSep) }
|
|
return splitLinesAuto(str)
|
|
},
|
|
lineSeparator: function() { return this.lineSep || "\n" },
|
|
|
|
setDirection: docMethodOp(function (dir) {
|
|
if (dir != "rtl") { dir = "ltr"; }
|
|
if (dir == this.direction) { return }
|
|
this.direction = dir;
|
|
this.iter(function (line) { return line.order = null; });
|
|
if (this.cm) { directionChanged(this.cm); }
|
|
})
|
|
});
|
|
|
|
// Public alias.
|
|
Doc.prototype.eachLine = Doc.prototype.iter;
|
|
|
|
// Kludge to work around strange IE behavior where it'll sometimes
|
|
// re-fire a series of drag-related events right after the drop (#1551)
|
|
var lastDrop = 0;
|
|
|
|
function onDrop(e) {
|
|
var cm = this;
|
|
clearDragCursor(cm);
|
|
if (signalDOMEvent(cm, e) || eventInWidget(cm.display, e))
|
|
{ return }
|
|
e_preventDefault(e);
|
|
if (ie) { lastDrop = +new Date; }
|
|
var pos = posFromMouse(cm, e, true), files = e.dataTransfer.files;
|
|
if (!pos || cm.isReadOnly()) { return }
|
|
// Might be a file drop, in which case we simply extract the text
|
|
// and insert it.
|
|
if (files && files.length && window.FileReader && window.File) {
|
|
var n = files.length, text = Array(n), read = 0;
|
|
var markAsReadAndPasteIfAllFilesAreRead = function () {
|
|
if (++read == n) {
|
|
operation(cm, function () {
|
|
pos = clipPos(cm.doc, pos);
|
|
var change = {from: pos, to: pos,
|
|
text: cm.doc.splitLines(
|
|
text.filter(function (t) { return t != null; }).join(cm.doc.lineSeparator())),
|
|
origin: "paste"};
|
|
makeChange(cm.doc, change);
|
|
setSelectionReplaceHistory(cm.doc, simpleSelection(clipPos(cm.doc, pos), clipPos(cm.doc, changeEnd(change))));
|
|
})();
|
|
}
|
|
};
|
|
var readTextFromFile = function (file, i) {
|
|
if (cm.options.allowDropFileTypes &&
|
|
indexOf(cm.options.allowDropFileTypes, file.type) == -1) {
|
|
markAsReadAndPasteIfAllFilesAreRead();
|
|
return
|
|
}
|
|
var reader = new FileReader;
|
|
reader.onerror = function () { return markAsReadAndPasteIfAllFilesAreRead(); };
|
|
reader.onload = function () {
|
|
var content = reader.result;
|
|
if (/[\x00-\x08\x0e-\x1f]{2}/.test(content)) {
|
|
markAsReadAndPasteIfAllFilesAreRead();
|
|
return
|
|
}
|
|
text[i] = content;
|
|
markAsReadAndPasteIfAllFilesAreRead();
|
|
};
|
|
reader.readAsText(file);
|
|
};
|
|
for (var i = 0; i < files.length; i++) { readTextFromFile(files[i], i); }
|
|
} else { // Normal drop
|
|
// Don't do a replace if the drop happened inside of the selected text.
|
|
if (cm.state.draggingText && cm.doc.sel.contains(pos) > -1) {
|
|
cm.state.draggingText(e);
|
|
// Ensure the editor is re-focused
|
|
setTimeout(function () { return cm.display.input.focus(); }, 20);
|
|
return
|
|
}
|
|
try {
|
|
var text$1 = e.dataTransfer.getData("Text");
|
|
if (text$1) {
|
|
var selected;
|
|
if (cm.state.draggingText && !cm.state.draggingText.copy)
|
|
{ selected = cm.listSelections(); }
|
|
setSelectionNoUndo(cm.doc, simpleSelection(pos, pos));
|
|
if (selected) { for (var i$1 = 0; i$1 < selected.length; ++i$1)
|
|
{ replaceRange(cm.doc, "", selected[i$1].anchor, selected[i$1].head, "drag"); } }
|
|
cm.replaceSelection(text$1, "around", "paste");
|
|
cm.display.input.focus();
|
|
}
|
|
}
|
|
catch(e$1){}
|
|
}
|
|
}
|
|
|
|
function onDragStart(cm, e) {
|
|
if (ie && (!cm.state.draggingText || +new Date - lastDrop < 100)) { e_stop(e); return }
|
|
if (signalDOMEvent(cm, e) || eventInWidget(cm.display, e)) { return }
|
|
|
|
e.dataTransfer.setData("Text", cm.getSelection());
|
|
e.dataTransfer.effectAllowed = "copyMove";
|
|
|
|
// Use dummy image instead of default browsers image.
|
|
// Recent Safari (~6.0.2) have a tendency to segfault when this happens, so we don't do it there.
|
|
if (e.dataTransfer.setDragImage && !safari) {
|
|
var img = elt("img", null, null, "position: fixed; left: 0; top: 0;");
|
|
img.src = "data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==";
|
|
if (presto) {
|
|
img.width = img.height = 1;
|
|
cm.display.wrapper.appendChild(img);
|
|
// Force a relayout, or Opera won't use our image for some obscure reason
|
|
img._top = img.offsetTop;
|
|
}
|
|
e.dataTransfer.setDragImage(img, 0, 0);
|
|
if (presto) { img.parentNode.removeChild(img); }
|
|
}
|
|
}
|
|
|
|
function onDragOver(cm, e) {
|
|
var pos = posFromMouse(cm, e);
|
|
if (!pos) { return }
|
|
var frag = document.createDocumentFragment();
|
|
drawSelectionCursor(cm, pos, frag);
|
|
if (!cm.display.dragCursor) {
|
|
cm.display.dragCursor = elt("div", null, "CodeMirror-cursors CodeMirror-dragcursors");
|
|
cm.display.lineSpace.insertBefore(cm.display.dragCursor, cm.display.cursorDiv);
|
|
}
|
|
removeChildrenAndAdd(cm.display.dragCursor, frag);
|
|
}
|
|
|
|
function clearDragCursor(cm) {
|
|
if (cm.display.dragCursor) {
|
|
cm.display.lineSpace.removeChild(cm.display.dragCursor);
|
|
cm.display.dragCursor = null;
|
|
}
|
|
}
|
|
|
|
// These must be handled carefully, because naively registering a
|
|
// handler for each editor will cause the editors to never be
|
|
// garbage collected.
|
|
|
|
function forEachCodeMirror(f) {
|
|
if (!document.getElementsByClassName) { return }
|
|
var byClass = document.getElementsByClassName("CodeMirror"), editors = [];
|
|
for (var i = 0; i < byClass.length; i++) {
|
|
var cm = byClass[i].CodeMirror;
|
|
if (cm) { editors.push(cm); }
|
|
}
|
|
if (editors.length) { editors[0].operation(function () {
|
|
for (var i = 0; i < editors.length; i++) { f(editors[i]); }
|
|
}); }
|
|
}
|
|
|
|
var globalsRegistered = false;
|
|
function ensureGlobalHandlers() {
|
|
if (globalsRegistered) { return }
|
|
registerGlobalHandlers();
|
|
globalsRegistered = true;
|
|
}
|
|
function registerGlobalHandlers() {
|
|
// When the window resizes, we need to refresh active editors.
|
|
var resizeTimer;
|
|
on(window, "resize", function () {
|
|
if (resizeTimer == null) { resizeTimer = setTimeout(function () {
|
|
resizeTimer = null;
|
|
forEachCodeMirror(onResize);
|
|
}, 100); }
|
|
});
|
|
// When the window loses focus, we want to show the editor as blurred
|
|
on(window, "blur", function () { return forEachCodeMirror(onBlur); });
|
|
}
|
|
// Called when the window resizes
|
|
function onResize(cm) {
|
|
var d = cm.display;
|
|
// Might be a text scaling operation, clear size caches.
|
|
d.cachedCharWidth = d.cachedTextHeight = d.cachedPaddingH = null;
|
|
d.scrollbarsClipped = false;
|
|
cm.setSize();
|
|
}
|
|
|
|
var keyNames = {
|
|
3: "Pause", 8: "Backspace", 9: "Tab", 13: "Enter", 16: "Shift", 17: "Ctrl", 18: "Alt",
|
|
19: "Pause", 20: "CapsLock", 27: "Esc", 32: "Space", 33: "PageUp", 34: "PageDown", 35: "End",
|
|
36: "Home", 37: "Left", 38: "Up", 39: "Right", 40: "Down", 44: "PrintScrn", 45: "Insert",
|
|
46: "Delete", 59: ";", 61: "=", 91: "Mod", 92: "Mod", 93: "Mod",
|
|
106: "*", 107: "=", 109: "-", 110: ".", 111: "/", 145: "ScrollLock",
|
|
173: "-", 186: ";", 187: "=", 188: ",", 189: "-", 190: ".", 191: "/", 192: "`", 219: "[", 220: "\\",
|
|
221: "]", 222: "'", 224: "Mod", 63232: "Up", 63233: "Down", 63234: "Left", 63235: "Right", 63272: "Delete",
|
|
63273: "Home", 63275: "End", 63276: "PageUp", 63277: "PageDown", 63302: "Insert"
|
|
};
|
|
|
|
// Number keys
|
|
for (var i = 0; i < 10; i++) { keyNames[i + 48] = keyNames[i + 96] = String(i); }
|
|
// Alphabetic keys
|
|
for (var i$1 = 65; i$1 <= 90; i$1++) { keyNames[i$1] = String.fromCharCode(i$1); }
|
|
// Function keys
|
|
for (var i$2 = 1; i$2 <= 12; i$2++) { keyNames[i$2 + 111] = keyNames[i$2 + 63235] = "F" + i$2; }
|
|
|
|
var keyMap = {};
|
|
|
|
keyMap.basic = {
|
|
"Left": "goCharLeft", "Right": "goCharRight", "Up": "goLineUp", "Down": "goLineDown",
|
|
"End": "goLineEnd", "Home": "goLineStartSmart", "PageUp": "goPageUp", "PageDown": "goPageDown",
|
|
"Delete": "delCharAfter", "Backspace": "delCharBefore", "Shift-Backspace": "delCharBefore",
|
|
"Tab": "defaultTab", "Shift-Tab": "indentAuto",
|
|
"Enter": "newlineAndIndent", "Insert": "toggleOverwrite",
|
|
"Esc": "singleSelection"
|
|
};
|
|
// Note that the save and find-related commands aren't defined by
|
|
// default. User code or addons can define them. Unknown commands
|
|
// are simply ignored.
|
|
keyMap.pcDefault = {
|
|
"Ctrl-A": "selectAll", "Ctrl-D": "deleteLine", "Ctrl-Z": "undo", "Shift-Ctrl-Z": "redo", "Ctrl-Y": "redo",
|
|
"Ctrl-Home": "goDocStart", "Ctrl-End": "goDocEnd", "Ctrl-Up": "goLineUp", "Ctrl-Down": "goLineDown",
|
|
"Ctrl-Left": "goGroupLeft", "Ctrl-Right": "goGroupRight", "Alt-Left": "goLineStart", "Alt-Right": "goLineEnd",
|
|
"Ctrl-Backspace": "delGroupBefore", "Ctrl-Delete": "delGroupAfter", "Ctrl-S": "save", "Ctrl-F": "find",
|
|
"Ctrl-G": "findNext", "Shift-Ctrl-G": "findPrev", "Shift-Ctrl-F": "replace", "Shift-Ctrl-R": "replaceAll",
|
|
"Ctrl-[": "indentLess", "Ctrl-]": "indentMore",
|
|
"Ctrl-U": "undoSelection", "Shift-Ctrl-U": "redoSelection", "Alt-U": "redoSelection",
|
|
"fallthrough": "basic"
|
|
};
|
|
// Very basic readline/emacs-style bindings, which are standard on Mac.
|
|
keyMap.emacsy = {
|
|
"Ctrl-F": "goCharRight", "Ctrl-B": "goCharLeft", "Ctrl-P": "goLineUp", "Ctrl-N": "goLineDown",
|
|
"Ctrl-A": "goLineStart", "Ctrl-E": "goLineEnd", "Ctrl-V": "goPageDown", "Shift-Ctrl-V": "goPageUp",
|
|
"Ctrl-D": "delCharAfter", "Ctrl-H": "delCharBefore", "Alt-Backspace": "delWordBefore", "Ctrl-K": "killLine",
|
|
"Ctrl-T": "transposeChars", "Ctrl-O": "openLine"
|
|
};
|
|
keyMap.macDefault = {
|
|
"Cmd-A": "selectAll", "Cmd-D": "deleteLine", "Cmd-Z": "undo", "Shift-Cmd-Z": "redo", "Cmd-Y": "redo",
|
|
"Cmd-Home": "goDocStart", "Cmd-Up": "goDocStart", "Cmd-End": "goDocEnd", "Cmd-Down": "goDocEnd", "Alt-Left": "goGroupLeft",
|
|
"Alt-Right": "goGroupRight", "Cmd-Left": "goLineLeft", "Cmd-Right": "goLineRight", "Alt-Backspace": "delGroupBefore",
|
|
"Ctrl-Alt-Backspace": "delGroupAfter", "Alt-Delete": "delGroupAfter", "Cmd-S": "save", "Cmd-F": "find",
|
|
"Cmd-G": "findNext", "Shift-Cmd-G": "findPrev", "Cmd-Alt-F": "replace", "Shift-Cmd-Alt-F": "replaceAll",
|
|
"Cmd-[": "indentLess", "Cmd-]": "indentMore", "Cmd-Backspace": "delWrappedLineLeft", "Cmd-Delete": "delWrappedLineRight",
|
|
"Cmd-U": "undoSelection", "Shift-Cmd-U": "redoSelection", "Ctrl-Up": "goDocStart", "Ctrl-Down": "goDocEnd",
|
|
"fallthrough": ["basic", "emacsy"]
|
|
};
|
|
keyMap["default"] = mac ? keyMap.macDefault : keyMap.pcDefault;
|
|
|
|
// KEYMAP DISPATCH
|
|
|
|
function normalizeKeyName(name) {
|
|
var parts = name.split(/-(?!$)/);
|
|
name = parts[parts.length - 1];
|
|
var alt, ctrl, shift, cmd;
|
|
for (var i = 0; i < parts.length - 1; i++) {
|
|
var mod = parts[i];
|
|
if (/^(cmd|meta|m)$/i.test(mod)) { cmd = true; }
|
|
else if (/^a(lt)?$/i.test(mod)) { alt = true; }
|
|
else if (/^(c|ctrl|control)$/i.test(mod)) { ctrl = true; }
|
|
else if (/^s(hift)?$/i.test(mod)) { shift = true; }
|
|
else { throw new Error("Unrecognized modifier name: " + mod) }
|
|
}
|
|
if (alt) { name = "Alt-" + name; }
|
|
if (ctrl) { name = "Ctrl-" + name; }
|
|
if (cmd) { name = "Cmd-" + name; }
|
|
if (shift) { name = "Shift-" + name; }
|
|
return name
|
|
}
|
|
|
|
// This is a kludge to keep keymaps mostly working as raw objects
|
|
// (backwards compatibility) while at the same time support features
|
|
// like normalization and multi-stroke key bindings. It compiles a
|
|
// new normalized keymap, and then updates the old object to reflect
|
|
// this.
|
|
function normalizeKeyMap(keymap) {
|
|
var copy = {};
|
|
for (var keyname in keymap) { if (keymap.hasOwnProperty(keyname)) {
|
|
var value = keymap[keyname];
|
|
if (/^(name|fallthrough|(de|at)tach)$/.test(keyname)) { continue }
|
|
if (value == "...") { delete keymap[keyname]; continue }
|
|
|
|
var keys = map(keyname.split(" "), normalizeKeyName);
|
|
for (var i = 0; i < keys.length; i++) {
|
|
var val = (void 0), name = (void 0);
|
|
if (i == keys.length - 1) {
|
|
name = keys.join(" ");
|
|
val = value;
|
|
} else {
|
|
name = keys.slice(0, i + 1).join(" ");
|
|
val = "...";
|
|
}
|
|
var prev = copy[name];
|
|
if (!prev) { copy[name] = val; }
|
|
else if (prev != val) { throw new Error("Inconsistent bindings for " + name) }
|
|
}
|
|
delete keymap[keyname];
|
|
} }
|
|
for (var prop in copy) { keymap[prop] = copy[prop]; }
|
|
return keymap
|
|
}
|
|
|
|
function lookupKey(key, map, handle, context) {
|
|
map = getKeyMap(map);
|
|
var found = map.call ? map.call(key, context) : map[key];
|
|
if (found === false) { return "nothing" }
|
|
if (found === "...") { return "multi" }
|
|
if (found != null && handle(found)) { return "handled" }
|
|
|
|
if (map.fallthrough) {
|
|
if (Object.prototype.toString.call(map.fallthrough) != "[object Array]")
|
|
{ return lookupKey(key, map.fallthrough, handle, context) }
|
|
for (var i = 0; i < map.fallthrough.length; i++) {
|
|
var result = lookupKey(key, map.fallthrough[i], handle, context);
|
|
if (result) { return result }
|
|
}
|
|
}
|
|
}
|
|
|
|
// Modifier key presses don't count as 'real' key presses for the
|
|
// purpose of keymap fallthrough.
|
|
function isModifierKey(value) {
|
|
var name = typeof value == "string" ? value : keyNames[value.keyCode];
|
|
return name == "Ctrl" || name == "Alt" || name == "Shift" || name == "Mod"
|
|
}
|
|
|
|
function addModifierNames(name, event, noShift) {
|
|
var base = name;
|
|
if (event.altKey && base != "Alt") { name = "Alt-" + name; }
|
|
if ((flipCtrlCmd ? event.metaKey : event.ctrlKey) && base != "Ctrl") { name = "Ctrl-" + name; }
|
|
if ((flipCtrlCmd ? event.ctrlKey : event.metaKey) && base != "Mod") { name = "Cmd-" + name; }
|
|
if (!noShift && event.shiftKey && base != "Shift") { name = "Shift-" + name; }
|
|
return name
|
|
}
|
|
|
|
// Look up the name of a key as indicated by an event object.
|
|
function keyName(event, noShift) {
|
|
if (presto && event.keyCode == 34 && event["char"]) { return false }
|
|
var name = keyNames[event.keyCode];
|
|
if (name == null || event.altGraphKey) { return false }
|
|
// Ctrl-ScrollLock has keyCode 3, same as Ctrl-Pause,
|
|
// so we'll use event.code when available (Chrome 48+, FF 38+, Safari 10.1+)
|
|
if (event.keyCode == 3 && event.code) { name = event.code; }
|
|
return addModifierNames(name, event, noShift)
|
|
}
|
|
|
|
function getKeyMap(val) {
|
|
return typeof val == "string" ? keyMap[val] : val
|
|
}
|
|
|
|
// Helper for deleting text near the selection(s), used to implement
|
|
// backspace, delete, and similar functionality.
|
|
function deleteNearSelection(cm, compute) {
|
|
var ranges = cm.doc.sel.ranges, kill = [];
|
|
// Build up a set of ranges to kill first, merging overlapping
|
|
// ranges.
|
|
for (var i = 0; i < ranges.length; i++) {
|
|
var toKill = compute(ranges[i]);
|
|
while (kill.length && cmp(toKill.from, lst(kill).to) <= 0) {
|
|
var replaced = kill.pop();
|
|
if (cmp(replaced.from, toKill.from) < 0) {
|
|
toKill.from = replaced.from;
|
|
break
|
|
}
|
|
}
|
|
kill.push(toKill);
|
|
}
|
|
// Next, remove those actual ranges.
|
|
runInOp(cm, function () {
|
|
for (var i = kill.length - 1; i >= 0; i--)
|
|
{ replaceRange(cm.doc, "", kill[i].from, kill[i].to, "+delete"); }
|
|
ensureCursorVisible(cm);
|
|
});
|
|
}
|
|
|
|
function moveCharLogically(line, ch, dir) {
|
|
var target = skipExtendingChars(line.text, ch + dir, dir);
|
|
return target < 0 || target > line.text.length ? null : target
|
|
}
|
|
|
|
function moveLogically(line, start, dir) {
|
|
var ch = moveCharLogically(line, start.ch, dir);
|
|
return ch == null ? null : new Pos(start.line, ch, dir < 0 ? "after" : "before")
|
|
}
|
|
|
|
function endOfLine(visually, cm, lineObj, lineNo, dir) {
|
|
if (visually) {
|
|
if (cm.doc.direction == "rtl") { dir = -dir; }
|
|
var order = getOrder(lineObj, cm.doc.direction);
|
|
if (order) {
|
|
var part = dir < 0 ? lst(order) : order[0];
|
|
var moveInStorageOrder = (dir < 0) == (part.level == 1);
|
|
var sticky = moveInStorageOrder ? "after" : "before";
|
|
var ch;
|
|
// With a wrapped rtl chunk (possibly spanning multiple bidi parts),
|
|
// it could be that the last bidi part is not on the last visual line,
|
|
// since visual lines contain content order-consecutive chunks.
|
|
// Thus, in rtl, we are looking for the first (content-order) character
|
|
// in the rtl chunk that is on the last line (that is, the same line
|
|
// as the last (content-order) character).
|
|
if (part.level > 0 || cm.doc.direction == "rtl") {
|
|
var prep = prepareMeasureForLine(cm, lineObj);
|
|
ch = dir < 0 ? lineObj.text.length - 1 : 0;
|
|
var targetTop = measureCharPrepared(cm, prep, ch).top;
|
|
ch = findFirst(function (ch) { return measureCharPrepared(cm, prep, ch).top == targetTop; }, (dir < 0) == (part.level == 1) ? part.from : part.to - 1, ch);
|
|
if (sticky == "before") { ch = moveCharLogically(lineObj, ch, 1); }
|
|
} else { ch = dir < 0 ? part.to : part.from; }
|
|
return new Pos(lineNo, ch, sticky)
|
|
}
|
|
}
|
|
return new Pos(lineNo, dir < 0 ? lineObj.text.length : 0, dir < 0 ? "before" : "after")
|
|
}
|
|
|
|
function moveVisually(cm, line, start, dir) {
|
|
var bidi = getOrder(line, cm.doc.direction);
|
|
if (!bidi) { return moveLogically(line, start, dir) }
|
|
if (start.ch >= line.text.length) {
|
|
start.ch = line.text.length;
|
|
start.sticky = "before";
|
|
} else if (start.ch <= 0) {
|
|
start.ch = 0;
|
|
start.sticky = "after";
|
|
}
|
|
var partPos = getBidiPartAt(bidi, start.ch, start.sticky), part = bidi[partPos];
|
|
if (cm.doc.direction == "ltr" && part.level % 2 == 0 && (dir > 0 ? part.to > start.ch : part.from < start.ch)) {
|
|
// Case 1: We move within an ltr part in an ltr editor. Even with wrapped lines,
|
|
// nothing interesting happens.
|
|
return moveLogically(line, start, dir)
|
|
}
|
|
|
|
var mv = function (pos, dir) { return moveCharLogically(line, pos instanceof Pos ? pos.ch : pos, dir); };
|
|
var prep;
|
|
var getWrappedLineExtent = function (ch) {
|
|
if (!cm.options.lineWrapping) { return {begin: 0, end: line.text.length} }
|
|
prep = prep || prepareMeasureForLine(cm, line);
|
|
return wrappedLineExtentChar(cm, line, prep, ch)
|
|
};
|
|
var wrappedLineExtent = getWrappedLineExtent(start.sticky == "before" ? mv(start, -1) : start.ch);
|
|
|
|
if (cm.doc.direction == "rtl" || part.level == 1) {
|
|
var moveInStorageOrder = (part.level == 1) == (dir < 0);
|
|
var ch = mv(start, moveInStorageOrder ? 1 : -1);
|
|
if (ch != null && (!moveInStorageOrder ? ch >= part.from && ch >= wrappedLineExtent.begin : ch <= part.to && ch <= wrappedLineExtent.end)) {
|
|
// Case 2: We move within an rtl part or in an rtl editor on the same visual line
|
|
var sticky = moveInStorageOrder ? "before" : "after";
|
|
return new Pos(start.line, ch, sticky)
|
|
}
|
|
}
|
|
|
|
// Case 3: Could not move within this bidi part in this visual line, so leave
|
|
// the current bidi part
|
|
|
|
var searchInVisualLine = function (partPos, dir, wrappedLineExtent) {
|
|
var getRes = function (ch, moveInStorageOrder) { return moveInStorageOrder
|
|
? new Pos(start.line, mv(ch, 1), "before")
|
|
: new Pos(start.line, ch, "after"); };
|
|
|
|
for (; partPos >= 0 && partPos < bidi.length; partPos += dir) {
|
|
var part = bidi[partPos];
|
|
var moveInStorageOrder = (dir > 0) == (part.level != 1);
|
|
var ch = moveInStorageOrder ? wrappedLineExtent.begin : mv(wrappedLineExtent.end, -1);
|
|
if (part.from <= ch && ch < part.to) { return getRes(ch, moveInStorageOrder) }
|
|
ch = moveInStorageOrder ? part.from : mv(part.to, -1);
|
|
if (wrappedLineExtent.begin <= ch && ch < wrappedLineExtent.end) { return getRes(ch, moveInStorageOrder) }
|
|
}
|
|
};
|
|
|
|
// Case 3a: Look for other bidi parts on the same visual line
|
|
var res = searchInVisualLine(partPos + dir, dir, wrappedLineExtent);
|
|
if (res) { return res }
|
|
|
|
// Case 3b: Look for other bidi parts on the next visual line
|
|
var nextCh = dir > 0 ? wrappedLineExtent.end : mv(wrappedLineExtent.begin, -1);
|
|
if (nextCh != null && !(dir > 0 && nextCh == line.text.length)) {
|
|
res = searchInVisualLine(dir > 0 ? 0 : bidi.length - 1, dir, getWrappedLineExtent(nextCh));
|
|
if (res) { return res }
|
|
}
|
|
|
|
// Case 4: Nowhere to move
|
|
return null
|
|
}
|
|
|
|
// Commands are parameter-less actions that can be performed on an
|
|
// editor, mostly used for keybindings.
|
|
var commands = {
|
|
selectAll: selectAll,
|
|
singleSelection: function (cm) { return cm.setSelection(cm.getCursor("anchor"), cm.getCursor("head"), sel_dontScroll); },
|
|
killLine: function (cm) { return deleteNearSelection(cm, function (range) {
|
|
if (range.empty()) {
|
|
var len = getLine(cm.doc, range.head.line).text.length;
|
|
if (range.head.ch == len && range.head.line < cm.lastLine())
|
|
{ return {from: range.head, to: Pos(range.head.line + 1, 0)} }
|
|
else
|
|
{ return {from: range.head, to: Pos(range.head.line, len)} }
|
|
} else {
|
|
return {from: range.from(), to: range.to()}
|
|
}
|
|
}); },
|
|
deleteLine: function (cm) { return deleteNearSelection(cm, function (range) { return ({
|
|
from: Pos(range.from().line, 0),
|
|
to: clipPos(cm.doc, Pos(range.to().line + 1, 0))
|
|
}); }); },
|
|
delLineLeft: function (cm) { return deleteNearSelection(cm, function (range) { return ({
|
|
from: Pos(range.from().line, 0), to: range.from()
|
|
}); }); },
|
|
delWrappedLineLeft: function (cm) { return deleteNearSelection(cm, function (range) {
|
|
var top = cm.charCoords(range.head, "div").top + 5;
|
|
var leftPos = cm.coordsChar({left: 0, top: top}, "div");
|
|
return {from: leftPos, to: range.from()}
|
|
}); },
|
|
delWrappedLineRight: function (cm) { return deleteNearSelection(cm, function (range) {
|
|
var top = cm.charCoords(range.head, "div").top + 5;
|
|
var rightPos = cm.coordsChar({left: cm.display.lineDiv.offsetWidth + 100, top: top}, "div");
|
|
return {from: range.from(), to: rightPos }
|
|
}); },
|
|
undo: function (cm) { return cm.undo(); },
|
|
redo: function (cm) { return cm.redo(); },
|
|
undoSelection: function (cm) { return cm.undoSelection(); },
|
|
redoSelection: function (cm) { return cm.redoSelection(); },
|
|
goDocStart: function (cm) { return cm.extendSelection(Pos(cm.firstLine(), 0)); },
|
|
goDocEnd: function (cm) { return cm.extendSelection(Pos(cm.lastLine())); },
|
|
goLineStart: function (cm) { return cm.extendSelectionsBy(function (range) { return lineStart(cm, range.head.line); },
|
|
{origin: "+move", bias: 1}
|
|
); },
|
|
goLineStartSmart: function (cm) { return cm.extendSelectionsBy(function (range) { return lineStartSmart(cm, range.head); },
|
|
{origin: "+move", bias: 1}
|
|
); },
|
|
goLineEnd: function (cm) { return cm.extendSelectionsBy(function (range) { return lineEnd(cm, range.head.line); },
|
|
{origin: "+move", bias: -1}
|
|
); },
|
|
goLineRight: function (cm) { return cm.extendSelectionsBy(function (range) {
|
|
var top = cm.cursorCoords(range.head, "div").top + 5;
|
|
return cm.coordsChar({left: cm.display.lineDiv.offsetWidth + 100, top: top}, "div")
|
|
}, sel_move); },
|
|
goLineLeft: function (cm) { return cm.extendSelectionsBy(function (range) {
|
|
var top = cm.cursorCoords(range.head, "div").top + 5;
|
|
return cm.coordsChar({left: 0, top: top}, "div")
|
|
}, sel_move); },
|
|
goLineLeftSmart: function (cm) { return cm.extendSelectionsBy(function (range) {
|
|
var top = cm.cursorCoords(range.head, "div").top + 5;
|
|
var pos = cm.coordsChar({left: 0, top: top}, "div");
|
|
if (pos.ch < cm.getLine(pos.line).search(/\S/)) { return lineStartSmart(cm, range.head) }
|
|
return pos
|
|
}, sel_move); },
|
|
goLineUp: function (cm) { return cm.moveV(-1, "line"); },
|
|
goLineDown: function (cm) { return cm.moveV(1, "line"); },
|
|
goPageUp: function (cm) { return cm.moveV(-1, "page"); },
|
|
goPageDown: function (cm) { return cm.moveV(1, "page"); },
|
|
goCharLeft: function (cm) { return cm.moveH(-1, "char"); },
|
|
goCharRight: function (cm) { return cm.moveH(1, "char"); },
|
|
goColumnLeft: function (cm) { return cm.moveH(-1, "column"); },
|
|
goColumnRight: function (cm) { return cm.moveH(1, "column"); },
|
|
goWordLeft: function (cm) { return cm.moveH(-1, "word"); },
|
|
goGroupRight: function (cm) { return cm.moveH(1, "group"); },
|
|
goGroupLeft: function (cm) { return cm.moveH(-1, "group"); },
|
|
goWordRight: function (cm) { return cm.moveH(1, "word"); },
|
|
delCharBefore: function (cm) { return cm.deleteH(-1, "codepoint"); },
|
|
delCharAfter: function (cm) { return cm.deleteH(1, "char"); },
|
|
delWordBefore: function (cm) { return cm.deleteH(-1, "word"); },
|
|
delWordAfter: function (cm) { return cm.deleteH(1, "word"); },
|
|
delGroupBefore: function (cm) { return cm.deleteH(-1, "group"); },
|
|
delGroupAfter: function (cm) { return cm.deleteH(1, "group"); },
|
|
indentAuto: function (cm) { return cm.indentSelection("smart"); },
|
|
indentMore: function (cm) { return cm.indentSelection("add"); },
|
|
indentLess: function (cm) { return cm.indentSelection("subtract"); },
|
|
insertTab: function (cm) { return cm.replaceSelection("\t"); },
|
|
insertSoftTab: function (cm) {
|
|
var spaces = [], ranges = cm.listSelections(), tabSize = cm.options.tabSize;
|
|
for (var i = 0; i < ranges.length; i++) {
|
|
var pos = ranges[i].from();
|
|
var col = countColumn(cm.getLine(pos.line), pos.ch, tabSize);
|
|
spaces.push(spaceStr(tabSize - col % tabSize));
|
|
}
|
|
cm.replaceSelections(spaces);
|
|
},
|
|
defaultTab: function (cm) {
|
|
if (cm.somethingSelected()) { cm.indentSelection("add"); }
|
|
else { cm.execCommand("insertTab"); }
|
|
},
|
|
// Swap the two chars left and right of each selection's head.
|
|
// Move cursor behind the two swapped characters afterwards.
|
|
//
|
|
// Doesn't consider line feeds a character.
|
|
// Doesn't scan more than one line above to find a character.
|
|
// Doesn't do anything on an empty line.
|
|
// Doesn't do anything with non-empty selections.
|
|
transposeChars: function (cm) { return runInOp(cm, function () {
|
|
var ranges = cm.listSelections(), newSel = [];
|
|
for (var i = 0; i < ranges.length; i++) {
|
|
if (!ranges[i].empty()) { continue }
|
|
var cur = ranges[i].head, line = getLine(cm.doc, cur.line).text;
|
|
if (line) {
|
|
if (cur.ch == line.length) { cur = new Pos(cur.line, cur.ch - 1); }
|
|
if (cur.ch > 0) {
|
|
cur = new Pos(cur.line, cur.ch + 1);
|
|
cm.replaceRange(line.charAt(cur.ch - 1) + line.charAt(cur.ch - 2),
|
|
Pos(cur.line, cur.ch - 2), cur, "+transpose");
|
|
} else if (cur.line > cm.doc.first) {
|
|
var prev = getLine(cm.doc, cur.line - 1).text;
|
|
if (prev) {
|
|
cur = new Pos(cur.line, 1);
|
|
cm.replaceRange(line.charAt(0) + cm.doc.lineSeparator() +
|
|
prev.charAt(prev.length - 1),
|
|
Pos(cur.line - 1, prev.length - 1), cur, "+transpose");
|
|
}
|
|
}
|
|
}
|
|
newSel.push(new Range(cur, cur));
|
|
}
|
|
cm.setSelections(newSel);
|
|
}); },
|
|
newlineAndIndent: function (cm) { return runInOp(cm, function () {
|
|
var sels = cm.listSelections();
|
|
for (var i = sels.length - 1; i >= 0; i--)
|
|
{ cm.replaceRange(cm.doc.lineSeparator(), sels[i].anchor, sels[i].head, "+input"); }
|
|
sels = cm.listSelections();
|
|
for (var i$1 = 0; i$1 < sels.length; i$1++)
|
|
{ cm.indentLine(sels[i$1].from().line, null, true); }
|
|
ensureCursorVisible(cm);
|
|
}); },
|
|
openLine: function (cm) { return cm.replaceSelection("\n", "start"); },
|
|
toggleOverwrite: function (cm) { return cm.toggleOverwrite(); }
|
|
};
|
|
|
|
|
|
function lineStart(cm, lineN) {
|
|
var line = getLine(cm.doc, lineN);
|
|
var visual = visualLine(line);
|
|
if (visual != line) { lineN = lineNo(visual); }
|
|
return endOfLine(true, cm, visual, lineN, 1)
|
|
}
|
|
function lineEnd(cm, lineN) {
|
|
var line = getLine(cm.doc, lineN);
|
|
var visual = visualLineEnd(line);
|
|
if (visual != line) { lineN = lineNo(visual); }
|
|
return endOfLine(true, cm, line, lineN, -1)
|
|
}
|
|
function lineStartSmart(cm, pos) {
|
|
var start = lineStart(cm, pos.line);
|
|
var line = getLine(cm.doc, start.line);
|
|
var order = getOrder(line, cm.doc.direction);
|
|
if (!order || order[0].level == 0) {
|
|
var firstNonWS = Math.max(start.ch, line.text.search(/\S/));
|
|
var inWS = pos.line == start.line && pos.ch <= firstNonWS && pos.ch;
|
|
return Pos(start.line, inWS ? 0 : firstNonWS, start.sticky)
|
|
}
|
|
return start
|
|
}
|
|
|
|
// Run a handler that was bound to a key.
|
|
function doHandleBinding(cm, bound, dropShift) {
|
|
if (typeof bound == "string") {
|
|
bound = commands[bound];
|
|
if (!bound) { return false }
|
|
}
|
|
// Ensure previous input has been read, so that the handler sees a
|
|
// consistent view of the document
|
|
cm.display.input.ensurePolled();
|
|
var prevShift = cm.display.shift, done = false;
|
|
try {
|
|
if (cm.isReadOnly()) { cm.state.suppressEdits = true; }
|
|
if (dropShift) { cm.display.shift = false; }
|
|
done = bound(cm) != Pass;
|
|
} finally {
|
|
cm.display.shift = prevShift;
|
|
cm.state.suppressEdits = false;
|
|
}
|
|
return done
|
|
}
|
|
|
|
function lookupKeyForEditor(cm, name, handle) {
|
|
for (var i = 0; i < cm.state.keyMaps.length; i++) {
|
|
var result = lookupKey(name, cm.state.keyMaps[i], handle, cm);
|
|
if (result) { return result }
|
|
}
|
|
return (cm.options.extraKeys && lookupKey(name, cm.options.extraKeys, handle, cm))
|
|
|| lookupKey(name, cm.options.keyMap, handle, cm)
|
|
}
|
|
|
|
// Note that, despite the name, this function is also used to check
|
|
// for bound mouse clicks.
|
|
|
|
var stopSeq = new Delayed;
|
|
|
|
function dispatchKey(cm, name, e, handle) {
|
|
var seq = cm.state.keySeq;
|
|
if (seq) {
|
|
if (isModifierKey(name)) { return "handled" }
|
|
if (/\'$/.test(name))
|
|
{ cm.state.keySeq = null; }
|
|
else
|
|
{ stopSeq.set(50, function () {
|
|
if (cm.state.keySeq == seq) {
|
|
cm.state.keySeq = null;
|
|
cm.display.input.reset();
|
|
}
|
|
}); }
|
|
if (dispatchKeyInner(cm, seq + " " + name, e, handle)) { return true }
|
|
}
|
|
return dispatchKeyInner(cm, name, e, handle)
|
|
}
|
|
|
|
function dispatchKeyInner(cm, name, e, handle) {
|
|
var result = lookupKeyForEditor(cm, name, handle);
|
|
|
|
if (result == "multi")
|
|
{ cm.state.keySeq = name; }
|
|
if (result == "handled")
|
|
{ signalLater(cm, "keyHandled", cm, name, e); }
|
|
|
|
if (result == "handled" || result == "multi") {
|
|
e_preventDefault(e);
|
|
restartBlink(cm);
|
|
}
|
|
|
|
return !!result
|
|
}
|
|
|
|
// Handle a key from the keydown event.
|
|
function handleKeyBinding(cm, e) {
|
|
var name = keyName(e, true);
|
|
if (!name) { return false }
|
|
|
|
if (e.shiftKey && !cm.state.keySeq) {
|
|
// First try to resolve full name (including 'Shift-'). Failing
|
|
// that, see if there is a cursor-motion command (starting with
|
|
// 'go') bound to the keyname without 'Shift-'.
|
|
return dispatchKey(cm, "Shift-" + name, e, function (b) { return doHandleBinding(cm, b, true); })
|
|
|| dispatchKey(cm, name, e, function (b) {
|
|
if (typeof b == "string" ? /^go[A-Z]/.test(b) : b.motion)
|
|
{ return doHandleBinding(cm, b) }
|
|
})
|
|
} else {
|
|
return dispatchKey(cm, name, e, function (b) { return doHandleBinding(cm, b); })
|
|
}
|
|
}
|
|
|
|
// Handle a key from the keypress event
|
|
function handleCharBinding(cm, e, ch) {
|
|
return dispatchKey(cm, "'" + ch + "'", e, function (b) { return doHandleBinding(cm, b, true); })
|
|
}
|
|
|
|
var lastStoppedKey = null;
|
|
function onKeyDown(e) {
|
|
var cm = this;
|
|
if (e.target && e.target != cm.display.input.getField()) { return }
|
|
cm.curOp.focus = activeElt();
|
|
if (signalDOMEvent(cm, e)) { return }
|
|
// IE does strange things with escape.
|
|
if (ie && ie_version < 11 && e.keyCode == 27) { e.returnValue = false; }
|
|
var code = e.keyCode;
|
|
cm.display.shift = code == 16 || e.shiftKey;
|
|
var handled = handleKeyBinding(cm, e);
|
|
if (presto) {
|
|
lastStoppedKey = handled ? code : null;
|
|
// Opera has no cut event... we try to at least catch the key combo
|
|
if (!handled && code == 88 && !hasCopyEvent && (mac ? e.metaKey : e.ctrlKey))
|
|
{ cm.replaceSelection("", null, "cut"); }
|
|
}
|
|
if (gecko && !mac && !handled && code == 46 && e.shiftKey && !e.ctrlKey && document.execCommand)
|
|
{ document.execCommand("cut"); }
|
|
|
|
// Turn mouse into crosshair when Alt is held on Mac.
|
|
if (code == 18 && !/\bCodeMirror-crosshair\b/.test(cm.display.lineDiv.className))
|
|
{ showCrossHair(cm); }
|
|
}
|
|
|
|
function showCrossHair(cm) {
|
|
var lineDiv = cm.display.lineDiv;
|
|
addClass(lineDiv, "CodeMirror-crosshair");
|
|
|
|
function up(e) {
|
|
if (e.keyCode == 18 || !e.altKey) {
|
|
rmClass(lineDiv, "CodeMirror-crosshair");
|
|
off(document, "keyup", up);
|
|
off(document, "mouseover", up);
|
|
}
|
|
}
|
|
on(document, "keyup", up);
|
|
on(document, "mouseover", up);
|
|
}
|
|
|
|
function onKeyUp(e) {
|
|
if (e.keyCode == 16) { this.doc.sel.shift = false; }
|
|
signalDOMEvent(this, e);
|
|
}
|
|
|
|
function onKeyPress(e) {
|
|
var cm = this;
|
|
if (e.target && e.target != cm.display.input.getField()) { return }
|
|
if (eventInWidget(cm.display, e) || signalDOMEvent(cm, e) || e.ctrlKey && !e.altKey || mac && e.metaKey) { return }
|
|
var keyCode = e.keyCode, charCode = e.charCode;
|
|
if (presto && keyCode == lastStoppedKey) {lastStoppedKey = null; e_preventDefault(e); return}
|
|
if ((presto && (!e.which || e.which < 10)) && handleKeyBinding(cm, e)) { return }
|
|
var ch = String.fromCharCode(charCode == null ? keyCode : charCode);
|
|
// Some browsers fire keypress events for backspace
|
|
if (ch == "\x08") { return }
|
|
if (handleCharBinding(cm, e, ch)) { return }
|
|
cm.display.input.onKeyPress(e);
|
|
}
|
|
|
|
var DOUBLECLICK_DELAY = 400;
|
|
|
|
var PastClick = function(time, pos, button) {
|
|
this.time = time;
|
|
this.pos = pos;
|
|
this.button = button;
|
|
};
|
|
|
|
PastClick.prototype.compare = function (time, pos, button) {
|
|
return this.time + DOUBLECLICK_DELAY > time &&
|
|
cmp(pos, this.pos) == 0 && button == this.button
|
|
};
|
|
|
|
var lastClick, lastDoubleClick;
|
|
function clickRepeat(pos, button) {
|
|
var now = +new Date;
|
|
if (lastDoubleClick && lastDoubleClick.compare(now, pos, button)) {
|
|
lastClick = lastDoubleClick = null;
|
|
return "triple"
|
|
} else if (lastClick && lastClick.compare(now, pos, button)) {
|
|
lastDoubleClick = new PastClick(now, pos, button);
|
|
lastClick = null;
|
|
return "double"
|
|
} else {
|
|
lastClick = new PastClick(now, pos, button);
|
|
lastDoubleClick = null;
|
|
return "single"
|
|
}
|
|
}
|
|
|
|
// A mouse down can be a single click, double click, triple click,
|
|
// start of selection drag, start of text drag, new cursor
|
|
// (ctrl-click), rectangle drag (alt-drag), or xwin
|
|
// middle-click-paste. Or it might be a click on something we should
|
|
// not interfere with, such as a scrollbar or widget.
|
|
function onMouseDown(e) {
|
|
var cm = this, display = cm.display;
|
|
if (signalDOMEvent(cm, e) || display.activeTouch && display.input.supportsTouch()) { return }
|
|
display.input.ensurePolled();
|
|
display.shift = e.shiftKey;
|
|
|
|
if (eventInWidget(display, e)) {
|
|
if (!webkit) {
|
|
// Briefly turn off draggability, to allow widgets to do
|
|
// normal dragging things.
|
|
display.scroller.draggable = false;
|
|
setTimeout(function () { return display.scroller.draggable = true; }, 100);
|
|
}
|
|
return
|
|
}
|
|
if (clickInGutter(cm, e)) { return }
|
|
var pos = posFromMouse(cm, e), button = e_button(e), repeat = pos ? clickRepeat(pos, button) : "single";
|
|
window.focus();
|
|
|
|
// #3261: make sure, that we're not starting a second selection
|
|
if (button == 1 && cm.state.selectingText)
|
|
{ cm.state.selectingText(e); }
|
|
|
|
if (pos && handleMappedButton(cm, button, pos, repeat, e)) { return }
|
|
|
|
if (button == 1) {
|
|
if (pos) { leftButtonDown(cm, pos, repeat, e); }
|
|
else if (e_target(e) == display.scroller) { e_preventDefault(e); }
|
|
} else if (button == 2) {
|
|
if (pos) { extendSelection(cm.doc, pos); }
|
|
setTimeout(function () { return display.input.focus(); }, 20);
|
|
} else if (button == 3) {
|
|
if (captureRightClick) { cm.display.input.onContextMenu(e); }
|
|
else { delayBlurEvent(cm); }
|
|
}
|
|
}
|
|
|
|
function handleMappedButton(cm, button, pos, repeat, event) {
|
|
var name = "Click";
|
|
if (repeat == "double") { name = "Double" + name; }
|
|
else if (repeat == "triple") { name = "Triple" + name; }
|
|
name = (button == 1 ? "Left" : button == 2 ? "Middle" : "Right") + name;
|
|
|
|
return dispatchKey(cm, addModifierNames(name, event), event, function (bound) {
|
|
if (typeof bound == "string") { bound = commands[bound]; }
|
|
if (!bound) { return false }
|
|
var done = false;
|
|
try {
|
|
if (cm.isReadOnly()) { cm.state.suppressEdits = true; }
|
|
done = bound(cm, pos) != Pass;
|
|
} finally {
|
|
cm.state.suppressEdits = false;
|
|
}
|
|
return done
|
|
})
|
|
}
|
|
|
|
function configureMouse(cm, repeat, event) {
|
|
var option = cm.getOption("configureMouse");
|
|
var value = option ? option(cm, repeat, event) : {};
|
|
if (value.unit == null) {
|
|
var rect = chromeOS ? event.shiftKey && event.metaKey : event.altKey;
|
|
value.unit = rect ? "rectangle" : repeat == "single" ? "char" : repeat == "double" ? "word" : "line";
|
|
}
|
|
if (value.extend == null || cm.doc.extend) { value.extend = cm.doc.extend || event.shiftKey; }
|
|
if (value.addNew == null) { value.addNew = mac ? event.metaKey : event.ctrlKey; }
|
|
if (value.moveOnDrag == null) { value.moveOnDrag = !(mac ? event.altKey : event.ctrlKey); }
|
|
return value
|
|
}
|
|
|
|
function leftButtonDown(cm, pos, repeat, event) {
|
|
if (ie) { setTimeout(bind(ensureFocus, cm), 0); }
|
|
else { cm.curOp.focus = activeElt(); }
|
|
|
|
var behavior = configureMouse(cm, repeat, event);
|
|
|
|
var sel = cm.doc.sel, contained;
|
|
if (cm.options.dragDrop && dragAndDrop && !cm.isReadOnly() &&
|
|
repeat == "single" && (contained = sel.contains(pos)) > -1 &&
|
|
(cmp((contained = sel.ranges[contained]).from(), pos) < 0 || pos.xRel > 0) &&
|
|
(cmp(contained.to(), pos) > 0 || pos.xRel < 0))
|
|
{ leftButtonStartDrag(cm, event, pos, behavior); }
|
|
else
|
|
{ leftButtonSelect(cm, event, pos, behavior); }
|
|
}
|
|
|
|
// Start a text drag. When it ends, see if any dragging actually
|
|
// happen, and treat as a click if it didn't.
|
|
function leftButtonStartDrag(cm, event, pos, behavior) {
|
|
var display = cm.display, moved = false;
|
|
var dragEnd = operation(cm, function (e) {
|
|
if (webkit) { display.scroller.draggable = false; }
|
|
cm.state.draggingText = false;
|
|
if (cm.state.delayingBlurEvent) {
|
|
if (cm.hasFocus()) { cm.state.delayingBlurEvent = false; }
|
|
else { delayBlurEvent(cm); }
|
|
}
|
|
off(display.wrapper.ownerDocument, "mouseup", dragEnd);
|
|
off(display.wrapper.ownerDocument, "mousemove", mouseMove);
|
|
off(display.scroller, "dragstart", dragStart);
|
|
off(display.scroller, "drop", dragEnd);
|
|
if (!moved) {
|
|
e_preventDefault(e);
|
|
if (!behavior.addNew)
|
|
{ extendSelection(cm.doc, pos, null, null, behavior.extend); }
|
|
// Work around unexplainable focus problem in IE9 (#2127) and Chrome (#3081)
|
|
if ((webkit && !safari) || ie && ie_version == 9)
|
|
{ setTimeout(function () {display.wrapper.ownerDocument.body.focus({preventScroll: true}); display.input.focus();}, 20); }
|
|
else
|
|
{ display.input.focus(); }
|
|
}
|
|
});
|
|
var mouseMove = function(e2) {
|
|
moved = moved || Math.abs(event.clientX - e2.clientX) + Math.abs(event.clientY - e2.clientY) >= 10;
|
|
};
|
|
var dragStart = function () { return moved = true; };
|
|
// Let the drag handler handle this.
|
|
if (webkit) { display.scroller.draggable = true; }
|
|
cm.state.draggingText = dragEnd;
|
|
dragEnd.copy = !behavior.moveOnDrag;
|
|
on(display.wrapper.ownerDocument, "mouseup", dragEnd);
|
|
on(display.wrapper.ownerDocument, "mousemove", mouseMove);
|
|
on(display.scroller, "dragstart", dragStart);
|
|
on(display.scroller, "drop", dragEnd);
|
|
|
|
cm.state.delayingBlurEvent = true;
|
|
setTimeout(function () { return display.input.focus(); }, 20);
|
|
// IE's approach to draggable
|
|
if (display.scroller.dragDrop) { display.scroller.dragDrop(); }
|
|
}
|
|
|
|
function rangeForUnit(cm, pos, unit) {
|
|
if (unit == "char") { return new Range(pos, pos) }
|
|
if (unit == "word") { return cm.findWordAt(pos) }
|
|
if (unit == "line") { return new Range(Pos(pos.line, 0), clipPos(cm.doc, Pos(pos.line + 1, 0))) }
|
|
var result = unit(cm, pos);
|
|
return new Range(result.from, result.to)
|
|
}
|
|
|
|
// Normal selection, as opposed to text dragging.
|
|
function leftButtonSelect(cm, event, start, behavior) {
|
|
if (ie) { delayBlurEvent(cm); }
|
|
var display = cm.display, doc = cm.doc;
|
|
e_preventDefault(event);
|
|
|
|
var ourRange, ourIndex, startSel = doc.sel, ranges = startSel.ranges;
|
|
if (behavior.addNew && !behavior.extend) {
|
|
ourIndex = doc.sel.contains(start);
|
|
if (ourIndex > -1)
|
|
{ ourRange = ranges[ourIndex]; }
|
|
else
|
|
{ ourRange = new Range(start, start); }
|
|
} else {
|
|
ourRange = doc.sel.primary();
|
|
ourIndex = doc.sel.primIndex;
|
|
}
|
|
|
|
if (behavior.unit == "rectangle") {
|
|
if (!behavior.addNew) { ourRange = new Range(start, start); }
|
|
start = posFromMouse(cm, event, true, true);
|
|
ourIndex = -1;
|
|
} else {
|
|
var range = rangeForUnit(cm, start, behavior.unit);
|
|
if (behavior.extend)
|
|
{ ourRange = extendRange(ourRange, range.anchor, range.head, behavior.extend); }
|
|
else
|
|
{ ourRange = range; }
|
|
}
|
|
|
|
if (!behavior.addNew) {
|
|
ourIndex = 0;
|
|
setSelection(doc, new Selection([ourRange], 0), sel_mouse);
|
|
startSel = doc.sel;
|
|
} else if (ourIndex == -1) {
|
|
ourIndex = ranges.length;
|
|
setSelection(doc, normalizeSelection(cm, ranges.concat([ourRange]), ourIndex),
|
|
{scroll: false, origin: "*mouse"});
|
|
} else if (ranges.length > 1 && ranges[ourIndex].empty() && behavior.unit == "char" && !behavior.extend) {
|
|
setSelection(doc, normalizeSelection(cm, ranges.slice(0, ourIndex).concat(ranges.slice(ourIndex + 1)), 0),
|
|
{scroll: false, origin: "*mouse"});
|
|
startSel = doc.sel;
|
|
} else {
|
|
replaceOneSelection(doc, ourIndex, ourRange, sel_mouse);
|
|
}
|
|
|
|
var lastPos = start;
|
|
function extendTo(pos) {
|
|
if (cmp(lastPos, pos) == 0) { return }
|
|
lastPos = pos;
|
|
|
|
if (behavior.unit == "rectangle") {
|
|
var ranges = [], tabSize = cm.options.tabSize;
|
|
var startCol = countColumn(getLine(doc, start.line).text, start.ch, tabSize);
|
|
var posCol = countColumn(getLine(doc, pos.line).text, pos.ch, tabSize);
|
|
var left = Math.min(startCol, posCol), right = Math.max(startCol, posCol);
|
|
for (var line = Math.min(start.line, pos.line), end = Math.min(cm.lastLine(), Math.max(start.line, pos.line));
|
|
line <= end; line++) {
|
|
var text = getLine(doc, line).text, leftPos = findColumn(text, left, tabSize);
|
|
if (left == right)
|
|
{ ranges.push(new Range(Pos(line, leftPos), Pos(line, leftPos))); }
|
|
else if (text.length > leftPos)
|
|
{ ranges.push(new Range(Pos(line, leftPos), Pos(line, findColumn(text, right, tabSize)))); }
|
|
}
|
|
if (!ranges.length) { ranges.push(new Range(start, start)); }
|
|
setSelection(doc, normalizeSelection(cm, startSel.ranges.slice(0, ourIndex).concat(ranges), ourIndex),
|
|
{origin: "*mouse", scroll: false});
|
|
cm.scrollIntoView(pos);
|
|
} else {
|
|
var oldRange = ourRange;
|
|
var range = rangeForUnit(cm, pos, behavior.unit);
|
|
var anchor = oldRange.anchor, head;
|
|
if (cmp(range.anchor, anchor) > 0) {
|
|
head = range.head;
|
|
anchor = minPos(oldRange.from(), range.anchor);
|
|
} else {
|
|
head = range.anchor;
|
|
anchor = maxPos(oldRange.to(), range.head);
|
|
}
|
|
var ranges$1 = startSel.ranges.slice(0);
|
|
ranges$1[ourIndex] = bidiSimplify(cm, new Range(clipPos(doc, anchor), head));
|
|
setSelection(doc, normalizeSelection(cm, ranges$1, ourIndex), sel_mouse);
|
|
}
|
|
}
|
|
|
|
var editorSize = display.wrapper.getBoundingClientRect();
|
|
// Used to ensure timeout re-tries don't fire when another extend
|
|
// happened in the meantime (clearTimeout isn't reliable -- at
|
|
// least on Chrome, the timeouts still happen even when cleared,
|
|
// if the clear happens after their scheduled firing time).
|
|
var counter = 0;
|
|
|
|
function extend(e) {
|
|
var curCount = ++counter;
|
|
var cur = posFromMouse(cm, e, true, behavior.unit == "rectangle");
|
|
if (!cur) { return }
|
|
if (cmp(cur, lastPos) != 0) {
|
|
cm.curOp.focus = activeElt();
|
|
extendTo(cur);
|
|
var visible = visibleLines(display, doc);
|
|
if (cur.line >= visible.to || cur.line < visible.from)
|
|
{ setTimeout(operation(cm, function () {if (counter == curCount) { extend(e); }}), 150); }
|
|
} else {
|
|
var outside = e.clientY < editorSize.top ? -20 : e.clientY > editorSize.bottom ? 20 : 0;
|
|
if (outside) { setTimeout(operation(cm, function () {
|
|
if (counter != curCount) { return }
|
|
display.scroller.scrollTop += outside;
|
|
extend(e);
|
|
}), 50); }
|
|
}
|
|
}
|
|
|
|
function done(e) {
|
|
cm.state.selectingText = false;
|
|
counter = Infinity;
|
|
// If e is null or undefined we interpret this as someone trying
|
|
// to explicitly cancel the selection rather than the user
|
|
// letting go of the mouse button.
|
|
if (e) {
|
|
e_preventDefault(e);
|
|
display.input.focus();
|
|
}
|
|
off(display.wrapper.ownerDocument, "mousemove", move);
|
|
off(display.wrapper.ownerDocument, "mouseup", up);
|
|
doc.history.lastSelOrigin = null;
|
|
}
|
|
|
|
var move = operation(cm, function (e) {
|
|
if (e.buttons === 0 || !e_button(e)) { done(e); }
|
|
else { extend(e); }
|
|
});
|
|
var up = operation(cm, done);
|
|
cm.state.selectingText = up;
|
|
on(display.wrapper.ownerDocument, "mousemove", move);
|
|
on(display.wrapper.ownerDocument, "mouseup", up);
|
|
}
|
|
|
|
// Used when mouse-selecting to adjust the anchor to the proper side
|
|
// of a bidi jump depending on the visual position of the head.
|
|
function bidiSimplify(cm, range) {
|
|
var anchor = range.anchor;
|
|
var head = range.head;
|
|
var anchorLine = getLine(cm.doc, anchor.line);
|
|
if (cmp(anchor, head) == 0 && anchor.sticky == head.sticky) { return range }
|
|
var order = getOrder(anchorLine);
|
|
if (!order) { return range }
|
|
var index = getBidiPartAt(order, anchor.ch, anchor.sticky), part = order[index];
|
|
if (part.from != anchor.ch && part.to != anchor.ch) { return range }
|
|
var boundary = index + ((part.from == anchor.ch) == (part.level != 1) ? 0 : 1);
|
|
if (boundary == 0 || boundary == order.length) { return range }
|
|
|
|
// Compute the relative visual position of the head compared to the
|
|
// anchor (<0 is to the left, >0 to the right)
|
|
var leftSide;
|
|
if (head.line != anchor.line) {
|
|
leftSide = (head.line - anchor.line) * (cm.doc.direction == "ltr" ? 1 : -1) > 0;
|
|
} else {
|
|
var headIndex = getBidiPartAt(order, head.ch, head.sticky);
|
|
var dir = headIndex - index || (head.ch - anchor.ch) * (part.level == 1 ? -1 : 1);
|
|
if (headIndex == boundary - 1 || headIndex == boundary)
|
|
{ leftSide = dir < 0; }
|
|
else
|
|
{ leftSide = dir > 0; }
|
|
}
|
|
|
|
var usePart = order[boundary + (leftSide ? -1 : 0)];
|
|
var from = leftSide == (usePart.level == 1);
|
|
var ch = from ? usePart.from : usePart.to, sticky = from ? "after" : "before";
|
|
return anchor.ch == ch && anchor.sticky == sticky ? range : new Range(new Pos(anchor.line, ch, sticky), head)
|
|
}
|
|
|
|
|
|
// Determines whether an event happened in the gutter, and fires the
|
|
// handlers for the corresponding event.
|
|
function gutterEvent(cm, e, type, prevent) {
|
|
var mX, mY;
|
|
if (e.touches) {
|
|
mX = e.touches[0].clientX;
|
|
mY = e.touches[0].clientY;
|
|
} else {
|
|
try { mX = e.clientX; mY = e.clientY; }
|
|
catch(e$1) { return false }
|
|
}
|
|
if (mX >= Math.floor(cm.display.gutters.getBoundingClientRect().right)) { return false }
|
|
if (prevent) { e_preventDefault(e); }
|
|
|
|
var display = cm.display;
|
|
var lineBox = display.lineDiv.getBoundingClientRect();
|
|
|
|
if (mY > lineBox.bottom || !hasHandler(cm, type)) { return e_defaultPrevented(e) }
|
|
mY -= lineBox.top - display.viewOffset;
|
|
|
|
for (var i = 0; i < cm.display.gutterSpecs.length; ++i) {
|
|
var g = display.gutters.childNodes[i];
|
|
if (g && g.getBoundingClientRect().right >= mX) {
|
|
var line = lineAtHeight(cm.doc, mY);
|
|
var gutter = cm.display.gutterSpecs[i];
|
|
signal(cm, type, cm, line, gutter.className, e);
|
|
return e_defaultPrevented(e)
|
|
}
|
|
}
|
|
}
|
|
|
|
function clickInGutter(cm, e) {
|
|
return gutterEvent(cm, e, "gutterClick", true)
|
|
}
|
|
|
|
// CONTEXT MENU HANDLING
|
|
|
|
// To make the context menu work, we need to briefly unhide the
|
|
// textarea (making it as unobtrusive as possible) to let the
|
|
// right-click take effect on it.
|
|
function onContextMenu(cm, e) {
|
|
if (eventInWidget(cm.display, e) || contextMenuInGutter(cm, e)) { return }
|
|
if (signalDOMEvent(cm, e, "contextmenu")) { return }
|
|
if (!captureRightClick) { cm.display.input.onContextMenu(e); }
|
|
}
|
|
|
|
function contextMenuInGutter(cm, e) {
|
|
if (!hasHandler(cm, "gutterContextMenu")) { return false }
|
|
return gutterEvent(cm, e, "gutterContextMenu", false)
|
|
}
|
|
|
|
function themeChanged(cm) {
|
|
cm.display.wrapper.className = cm.display.wrapper.className.replace(/\s*cm-s-\S+/g, "") +
|
|
cm.options.theme.replace(/(^|\s)\s*/g, " cm-s-");
|
|
clearCaches(cm);
|
|
}
|
|
|
|
var Init = {toString: function(){return "CodeMirror.Init"}};
|
|
|
|
var defaults = {};
|
|
var optionHandlers = {};
|
|
|
|
function defineOptions(CodeMirror) {
|
|
var optionHandlers = CodeMirror.optionHandlers;
|
|
|
|
function option(name, deflt, handle, notOnInit) {
|
|
CodeMirror.defaults[name] = deflt;
|
|
if (handle) { optionHandlers[name] =
|
|
notOnInit ? function (cm, val, old) {if (old != Init) { handle(cm, val, old); }} : handle; }
|
|
}
|
|
|
|
CodeMirror.defineOption = option;
|
|
|
|
// Passed to option handlers when there is no old value.
|
|
CodeMirror.Init = Init;
|
|
|
|
// These two are, on init, called from the constructor because they
|
|
// have to be initialized before the editor can start at all.
|
|
option("value", "", function (cm, val) { return cm.setValue(val); }, true);
|
|
option("mode", null, function (cm, val) {
|
|
cm.doc.modeOption = val;
|
|
loadMode(cm);
|
|
}, true);
|
|
|
|
option("indentUnit", 2, loadMode, true);
|
|
option("indentWithTabs", false);
|
|
option("smartIndent", true);
|
|
option("tabSize", 4, function (cm) {
|
|
resetModeState(cm);
|
|
clearCaches(cm);
|
|
regChange(cm);
|
|
}, true);
|
|
|
|
option("lineSeparator", null, function (cm, val) {
|
|
cm.doc.lineSep = val;
|
|
if (!val) { return }
|
|
var newBreaks = [], lineNo = cm.doc.first;
|
|
cm.doc.iter(function (line) {
|
|
for (var pos = 0;;) {
|
|
var found = line.text.indexOf(val, pos);
|
|
if (found == -1) { break }
|
|
pos = found + val.length;
|
|
newBreaks.push(Pos(lineNo, found));
|
|
}
|
|
lineNo++;
|
|
});
|
|
for (var i = newBreaks.length - 1; i >= 0; i--)
|
|
{ replaceRange(cm.doc, val, newBreaks[i], Pos(newBreaks[i].line, newBreaks[i].ch + val.length)); }
|
|
});
|
|
option("specialChars", /[\u0000-\u001f\u007f-\u009f\u00ad\u061c\u200b\u200e\u200f\u2028\u2029\ufeff\ufff9-\ufffc]/g, function (cm, val, old) {
|
|
cm.state.specialChars = new RegExp(val.source + (val.test("\t") ? "" : "|\t"), "g");
|
|
if (old != Init) { cm.refresh(); }
|
|
});
|
|
option("specialCharPlaceholder", defaultSpecialCharPlaceholder, function (cm) { return cm.refresh(); }, true);
|
|
option("electricChars", true);
|
|
option("inputStyle", mobile ? "contenteditable" : "textarea", function () {
|
|
throw new Error("inputStyle can not (yet) be changed in a running editor") // FIXME
|
|
}, true);
|
|
option("spellcheck", false, function (cm, val) { return cm.getInputField().spellcheck = val; }, true);
|
|
option("autocorrect", false, function (cm, val) { return cm.getInputField().autocorrect = val; }, true);
|
|
option("autocapitalize", false, function (cm, val) { return cm.getInputField().autocapitalize = val; }, true);
|
|
option("rtlMoveVisually", !windows);
|
|
option("wholeLineUpdateBefore", true);
|
|
|
|
option("theme", "default", function (cm) {
|
|
themeChanged(cm);
|
|
updateGutters(cm);
|
|
}, true);
|
|
option("keyMap", "default", function (cm, val, old) {
|
|
var next = getKeyMap(val);
|
|
var prev = old != Init && getKeyMap(old);
|
|
if (prev && prev.detach) { prev.detach(cm, next); }
|
|
if (next.attach) { next.attach(cm, prev || null); }
|
|
});
|
|
option("extraKeys", null);
|
|
option("configureMouse", null);
|
|
|
|
option("lineWrapping", false, wrappingChanged, true);
|
|
option("gutters", [], function (cm, val) {
|
|
cm.display.gutterSpecs = getGutters(val, cm.options.lineNumbers);
|
|
updateGutters(cm);
|
|
}, true);
|
|
option("fixedGutter", true, function (cm, val) {
|
|
cm.display.gutters.style.left = val ? compensateForHScroll(cm.display) + "px" : "0";
|
|
cm.refresh();
|
|
}, true);
|
|
option("coverGutterNextToScrollbar", false, function (cm) { return updateScrollbars(cm); }, true);
|
|
option("scrollbarStyle", "native", function (cm) {
|
|
initScrollbars(cm);
|
|
updateScrollbars(cm);
|
|
cm.display.scrollbars.setScrollTop(cm.doc.scrollTop);
|
|
cm.display.scrollbars.setScrollLeft(cm.doc.scrollLeft);
|
|
}, true);
|
|
option("lineNumbers", false, function (cm, val) {
|
|
cm.display.gutterSpecs = getGutters(cm.options.gutters, val);
|
|
updateGutters(cm);
|
|
}, true);
|
|
option("firstLineNumber", 1, updateGutters, true);
|
|
option("lineNumberFormatter", function (integer) { return integer; }, updateGutters, true);
|
|
option("showCursorWhenSelecting", false, updateSelection, true);
|
|
|
|
option("resetSelectionOnContextMenu", true);
|
|
option("lineWiseCopyCut", true);
|
|
option("pasteLinesPerSelection", true);
|
|
option("selectionsMayTouch", false);
|
|
|
|
option("readOnly", false, function (cm, val) {
|
|
if (val == "nocursor") {
|
|
onBlur(cm);
|
|
cm.display.input.blur();
|
|
}
|
|
cm.display.input.readOnlyChanged(val);
|
|
});
|
|
|
|
option("screenReaderLabel", null, function (cm, val) {
|
|
val = (val === '') ? null : val;
|
|
cm.display.input.screenReaderLabelChanged(val);
|
|
});
|
|
|
|
option("disableInput", false, function (cm, val) {if (!val) { cm.display.input.reset(); }}, true);
|
|
option("dragDrop", true, dragDropChanged);
|
|
option("allowDropFileTypes", null);
|
|
|
|
option("cursorBlinkRate", 530);
|
|
option("cursorScrollMargin", 0);
|
|
option("cursorHeight", 1, updateSelection, true);
|
|
option("singleCursorHeightPerLine", true, updateSelection, true);
|
|
option("workTime", 100);
|
|
option("workDelay", 100);
|
|
option("flattenSpans", true, resetModeState, true);
|
|
option("addModeClass", false, resetModeState, true);
|
|
option("pollInterval", 100);
|
|
option("undoDepth", 200, function (cm, val) { return cm.doc.history.undoDepth = val; });
|
|
option("historyEventDelay", 1250);
|
|
option("viewportMargin", 10, function (cm) { return cm.refresh(); }, true);
|
|
option("maxHighlightLength", 10000, resetModeState, true);
|
|
option("moveInputWithCursor", true, function (cm, val) {
|
|
if (!val) { cm.display.input.resetPosition(); }
|
|
});
|
|
|
|
option("tabindex", null, function (cm, val) { return cm.display.input.getField().tabIndex = val || ""; });
|
|
option("autofocus", null);
|
|
option("direction", "ltr", function (cm, val) { return cm.doc.setDirection(val); }, true);
|
|
option("phrases", null);
|
|
}
|
|
|
|
function dragDropChanged(cm, value, old) {
|
|
var wasOn = old && old != Init;
|
|
if (!value != !wasOn) {
|
|
var funcs = cm.display.dragFunctions;
|
|
var toggle = value ? on : off;
|
|
toggle(cm.display.scroller, "dragstart", funcs.start);
|
|
toggle(cm.display.scroller, "dragenter", funcs.enter);
|
|
toggle(cm.display.scroller, "dragover", funcs.over);
|
|
toggle(cm.display.scroller, "dragleave", funcs.leave);
|
|
toggle(cm.display.scroller, "drop", funcs.drop);
|
|
}
|
|
}
|
|
|
|
function wrappingChanged(cm) {
|
|
if (cm.options.lineWrapping) {
|
|
addClass(cm.display.wrapper, "CodeMirror-wrap");
|
|
cm.display.sizer.style.minWidth = "";
|
|
cm.display.sizerWidth = null;
|
|
} else {
|
|
rmClass(cm.display.wrapper, "CodeMirror-wrap");
|
|
findMaxLine(cm);
|
|
}
|
|
estimateLineHeights(cm);
|
|
regChange(cm);
|
|
clearCaches(cm);
|
|
setTimeout(function () { return updateScrollbars(cm); }, 100);
|
|
}
|
|
|
|
// A CodeMirror instance represents an editor. This is the object
|
|
// that user code is usually dealing with.
|
|
|
|
function CodeMirror(place, options) {
|
|
var this$1 = this;
|
|
|
|
if (!(this instanceof CodeMirror)) { return new CodeMirror(place, options) }
|
|
|
|
this.options = options = options ? copyObj(options) : {};
|
|
// Determine effective options based on given values and defaults.
|
|
copyObj(defaults, options, false);
|
|
|
|
var doc = options.value;
|
|
if (typeof doc == "string") { doc = new Doc(doc, options.mode, null, options.lineSeparator, options.direction); }
|
|
else if (options.mode) { doc.modeOption = options.mode; }
|
|
this.doc = doc;
|
|
|
|
var input = new CodeMirror.inputStyles[options.inputStyle](this);
|
|
var display = this.display = new Display(place, doc, input, options);
|
|
display.wrapper.CodeMirror = this;
|
|
themeChanged(this);
|
|
if (options.lineWrapping)
|
|
{ this.display.wrapper.className += " CodeMirror-wrap"; }
|
|
initScrollbars(this);
|
|
|
|
this.state = {
|
|
keyMaps: [], // stores maps added by addKeyMap
|
|
overlays: [], // highlighting overlays, as added by addOverlay
|
|
modeGen: 0, // bumped when mode/overlay changes, used to invalidate highlighting info
|
|
overwrite: false,
|
|
delayingBlurEvent: false,
|
|
focused: false,
|
|
suppressEdits: false, // used to disable editing during key handlers when in readOnly mode
|
|
pasteIncoming: -1, cutIncoming: -1, // help recognize paste/cut edits in input.poll
|
|
selectingText: false,
|
|
draggingText: false,
|
|
highlight: new Delayed(), // stores highlight worker timeout
|
|
keySeq: null, // Unfinished key sequence
|
|
specialChars: null
|
|
};
|
|
|
|
if (options.autofocus && !mobile) { display.input.focus(); }
|
|
|
|
// Override magic textarea content restore that IE sometimes does
|
|
// on our hidden textarea on reload
|
|
if (ie && ie_version < 11) { setTimeout(function () { return this$1.display.input.reset(true); }, 20); }
|
|
|
|
registerEventHandlers(this);
|
|
ensureGlobalHandlers();
|
|
|
|
startOperation(this);
|
|
this.curOp.forceUpdate = true;
|
|
attachDoc(this, doc);
|
|
|
|
if ((options.autofocus && !mobile) || this.hasFocus())
|
|
{ setTimeout(function () {
|
|
if (this$1.hasFocus() && !this$1.state.focused) { onFocus(this$1); }
|
|
}, 20); }
|
|
else
|
|
{ onBlur(this); }
|
|
|
|
for (var opt in optionHandlers) { if (optionHandlers.hasOwnProperty(opt))
|
|
{ optionHandlers[opt](this, options[opt], Init); } }
|
|
maybeUpdateLineNumberWidth(this);
|
|
if (options.finishInit) { options.finishInit(this); }
|
|
for (var i = 0; i < initHooks.length; ++i) { initHooks[i](this); }
|
|
endOperation(this);
|
|
// Suppress optimizelegibility in Webkit, since it breaks text
|
|
// measuring on line wrapping boundaries.
|
|
if (webkit && options.lineWrapping &&
|
|
getComputedStyle(display.lineDiv).textRendering == "optimizelegibility")
|
|
{ display.lineDiv.style.textRendering = "auto"; }
|
|
}
|
|
|
|
// The default configuration options.
|
|
CodeMirror.defaults = defaults;
|
|
// Functions to run when options are changed.
|
|
CodeMirror.optionHandlers = optionHandlers;
|
|
|
|
// Attach the necessary event handlers when initializing the editor
|
|
function registerEventHandlers(cm) {
|
|
var d = cm.display;
|
|
on(d.scroller, "mousedown", operation(cm, onMouseDown));
|
|
// Older IE's will not fire a second mousedown for a double click
|
|
if (ie && ie_version < 11)
|
|
{ on(d.scroller, "dblclick", operation(cm, function (e) {
|
|
if (signalDOMEvent(cm, e)) { return }
|
|
var pos = posFromMouse(cm, e);
|
|
if (!pos || clickInGutter(cm, e) || eventInWidget(cm.display, e)) { return }
|
|
e_preventDefault(e);
|
|
var word = cm.findWordAt(pos);
|
|
extendSelection(cm.doc, word.anchor, word.head);
|
|
})); }
|
|
else
|
|
{ on(d.scroller, "dblclick", function (e) { return signalDOMEvent(cm, e) || e_preventDefault(e); }); }
|
|
// Some browsers fire contextmenu *after* opening the menu, at
|
|
// which point we can't mess with it anymore. Context menu is
|
|
// handled in onMouseDown for these browsers.
|
|
on(d.scroller, "contextmenu", function (e) { return onContextMenu(cm, e); });
|
|
on(d.input.getField(), "contextmenu", function (e) {
|
|
if (!d.scroller.contains(e.target)) { onContextMenu(cm, e); }
|
|
});
|
|
|
|
// Used to suppress mouse event handling when a touch happens
|
|
var touchFinished, prevTouch = {end: 0};
|
|
function finishTouch() {
|
|
if (d.activeTouch) {
|
|
touchFinished = setTimeout(function () { return d.activeTouch = null; }, 1000);
|
|
prevTouch = d.activeTouch;
|
|
prevTouch.end = +new Date;
|
|
}
|
|
}
|
|
function isMouseLikeTouchEvent(e) {
|
|
if (e.touches.length != 1) { return false }
|
|
var touch = e.touches[0];
|
|
return touch.radiusX <= 1 && touch.radiusY <= 1
|
|
}
|
|
function farAway(touch, other) {
|
|
if (other.left == null) { return true }
|
|
var dx = other.left - touch.left, dy = other.top - touch.top;
|
|
return dx * dx + dy * dy > 20 * 20
|
|
}
|
|
on(d.scroller, "touchstart", function (e) {
|
|
if (!signalDOMEvent(cm, e) && !isMouseLikeTouchEvent(e) && !clickInGutter(cm, e)) {
|
|
d.input.ensurePolled();
|
|
clearTimeout(touchFinished);
|
|
var now = +new Date;
|
|
d.activeTouch = {start: now, moved: false,
|
|
prev: now - prevTouch.end <= 300 ? prevTouch : null};
|
|
if (e.touches.length == 1) {
|
|
d.activeTouch.left = e.touches[0].pageX;
|
|
d.activeTouch.top = e.touches[0].pageY;
|
|
}
|
|
}
|
|
});
|
|
on(d.scroller, "touchmove", function () {
|
|
if (d.activeTouch) { d.activeTouch.moved = true; }
|
|
});
|
|
on(d.scroller, "touchend", function (e) {
|
|
var touch = d.activeTouch;
|
|
if (touch && !eventInWidget(d, e) && touch.left != null &&
|
|
!touch.moved && new Date - touch.start < 300) {
|
|
var pos = cm.coordsChar(d.activeTouch, "page"), range;
|
|
if (!touch.prev || farAway(touch, touch.prev)) // Single tap
|
|
{ range = new Range(pos, pos); }
|
|
else if (!touch.prev.prev || farAway(touch, touch.prev.prev)) // Double tap
|
|
{ range = cm.findWordAt(pos); }
|
|
else // Triple tap
|
|
{ range = new Range(Pos(pos.line, 0), clipPos(cm.doc, Pos(pos.line + 1, 0))); }
|
|
cm.setSelection(range.anchor, range.head);
|
|
cm.focus();
|
|
e_preventDefault(e);
|
|
}
|
|
finishTouch();
|
|
});
|
|
on(d.scroller, "touchcancel", finishTouch);
|
|
|
|
// Sync scrolling between fake scrollbars and real scrollable
|
|
// area, ensure viewport is updated when scrolling.
|
|
on(d.scroller, "scroll", function () {
|
|
if (d.scroller.clientHeight) {
|
|
updateScrollTop(cm, d.scroller.scrollTop);
|
|
setScrollLeft(cm, d.scroller.scrollLeft, true);
|
|
signal(cm, "scroll", cm);
|
|
}
|
|
});
|
|
|
|
// Listen to wheel events in order to try and update the viewport on time.
|
|
on(d.scroller, "mousewheel", function (e) { return onScrollWheel(cm, e); });
|
|
on(d.scroller, "DOMMouseScroll", function (e) { return onScrollWheel(cm, e); });
|
|
|
|
// Prevent wrapper from ever scrolling
|
|
on(d.wrapper, "scroll", function () { return d.wrapper.scrollTop = d.wrapper.scrollLeft = 0; });
|
|
|
|
d.dragFunctions = {
|
|
enter: function (e) {if (!signalDOMEvent(cm, e)) { e_stop(e); }},
|
|
over: function (e) {if (!signalDOMEvent(cm, e)) { onDragOver(cm, e); e_stop(e); }},
|
|
start: function (e) { return onDragStart(cm, e); },
|
|
drop: operation(cm, onDrop),
|
|
leave: function (e) {if (!signalDOMEvent(cm, e)) { clearDragCursor(cm); }}
|
|
};
|
|
|
|
var inp = d.input.getField();
|
|
on(inp, "keyup", function (e) { return onKeyUp.call(cm, e); });
|
|
on(inp, "keydown", operation(cm, onKeyDown));
|
|
on(inp, "keypress", operation(cm, onKeyPress));
|
|
on(inp, "focus", function (e) { return onFocus(cm, e); });
|
|
on(inp, "blur", function (e) { return onBlur(cm, e); });
|
|
}
|
|
|
|
var initHooks = [];
|
|
CodeMirror.defineInitHook = function (f) { return initHooks.push(f); };
|
|
|
|
// Indent the given line. The how parameter can be "smart",
|
|
// "add"/null, "subtract", or "prev". When aggressive is false
|
|
// (typically set to true for forced single-line indents), empty
|
|
// lines are not indented, and places where the mode returns Pass
|
|
// are left alone.
|
|
function indentLine(cm, n, how, aggressive) {
|
|
var doc = cm.doc, state;
|
|
if (how == null) { how = "add"; }
|
|
if (how == "smart") {
|
|
// Fall back to "prev" when the mode doesn't have an indentation
|
|
// method.
|
|
if (!doc.mode.indent) { how = "prev"; }
|
|
else { state = getContextBefore(cm, n).state; }
|
|
}
|
|
|
|
var tabSize = cm.options.tabSize;
|
|
var line = getLine(doc, n), curSpace = countColumn(line.text, null, tabSize);
|
|
if (line.stateAfter) { line.stateAfter = null; }
|
|
var curSpaceString = line.text.match(/^\s*/)[0], indentation;
|
|
if (!aggressive && !/\S/.test(line.text)) {
|
|
indentation = 0;
|
|
how = "not";
|
|
} else if (how == "smart") {
|
|
indentation = doc.mode.indent(state, line.text.slice(curSpaceString.length), line.text);
|
|
if (indentation == Pass || indentation > 150) {
|
|
if (!aggressive) { return }
|
|
how = "prev";
|
|
}
|
|
}
|
|
if (how == "prev") {
|
|
if (n > doc.first) { indentation = countColumn(getLine(doc, n-1).text, null, tabSize); }
|
|
else { indentation = 0; }
|
|
} else if (how == "add") {
|
|
indentation = curSpace + cm.options.indentUnit;
|
|
} else if (how == "subtract") {
|
|
indentation = curSpace - cm.options.indentUnit;
|
|
} else if (typeof how == "number") {
|
|
indentation = curSpace + how;
|
|
}
|
|
indentation = Math.max(0, indentation);
|
|
|
|
var indentString = "", pos = 0;
|
|
if (cm.options.indentWithTabs)
|
|
{ for (var i = Math.floor(indentation / tabSize); i; --i) {pos += tabSize; indentString += "\t";} }
|
|
if (pos < indentation) { indentString += spaceStr(indentation - pos); }
|
|
|
|
if (indentString != curSpaceString) {
|
|
replaceRange(doc, indentString, Pos(n, 0), Pos(n, curSpaceString.length), "+input");
|
|
line.stateAfter = null;
|
|
return true
|
|
} else {
|
|
// Ensure that, if the cursor was in the whitespace at the start
|
|
// of the line, it is moved to the end of that space.
|
|
for (var i$1 = 0; i$1 < doc.sel.ranges.length; i$1++) {
|
|
var range = doc.sel.ranges[i$1];
|
|
if (range.head.line == n && range.head.ch < curSpaceString.length) {
|
|
var pos$1 = Pos(n, curSpaceString.length);
|
|
replaceOneSelection(doc, i$1, new Range(pos$1, pos$1));
|
|
break
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// This will be set to a {lineWise: bool, text: [string]} object, so
|
|
// that, when pasting, we know what kind of selections the copied
|
|
// text was made out of.
|
|
var lastCopied = null;
|
|
|
|
function setLastCopied(newLastCopied) {
|
|
lastCopied = newLastCopied;
|
|
}
|
|
|
|
function applyTextInput(cm, inserted, deleted, sel, origin) {
|
|
var doc = cm.doc;
|
|
cm.display.shift = false;
|
|
if (!sel) { sel = doc.sel; }
|
|
|
|
var recent = +new Date - 200;
|
|
var paste = origin == "paste" || cm.state.pasteIncoming > recent;
|
|
var textLines = splitLinesAuto(inserted), multiPaste = null;
|
|
// When pasting N lines into N selections, insert one line per selection
|
|
if (paste && sel.ranges.length > 1) {
|
|
if (lastCopied && lastCopied.text.join("\n") == inserted) {
|
|
if (sel.ranges.length % lastCopied.text.length == 0) {
|
|
multiPaste = [];
|
|
for (var i = 0; i < lastCopied.text.length; i++)
|
|
{ multiPaste.push(doc.splitLines(lastCopied.text[i])); }
|
|
}
|
|
} else if (textLines.length == sel.ranges.length && cm.options.pasteLinesPerSelection) {
|
|
multiPaste = map(textLines, function (l) { return [l]; });
|
|
}
|
|
}
|
|
|
|
var updateInput = cm.curOp.updateInput;
|
|
// Normal behavior is to insert the new text into every selection
|
|
for (var i$1 = sel.ranges.length - 1; i$1 >= 0; i$1--) {
|
|
var range = sel.ranges[i$1];
|
|
var from = range.from(), to = range.to();
|
|
if (range.empty()) {
|
|
if (deleted && deleted > 0) // Handle deletion
|
|
{ from = Pos(from.line, from.ch - deleted); }
|
|
else if (cm.state.overwrite && !paste) // Handle overwrite
|
|
{ to = Pos(to.line, Math.min(getLine(doc, to.line).text.length, to.ch + lst(textLines).length)); }
|
|
else if (paste && lastCopied && lastCopied.lineWise && lastCopied.text.join("\n") == textLines.join("\n"))
|
|
{ from = to = Pos(from.line, 0); }
|
|
}
|
|
var changeEvent = {from: from, to: to, text: multiPaste ? multiPaste[i$1 % multiPaste.length] : textLines,
|
|
origin: origin || (paste ? "paste" : cm.state.cutIncoming > recent ? "cut" : "+input")};
|
|
makeChange(cm.doc, changeEvent);
|
|
signalLater(cm, "inputRead", cm, changeEvent);
|
|
}
|
|
if (inserted && !paste)
|
|
{ triggerElectric(cm, inserted); }
|
|
|
|
ensureCursorVisible(cm);
|
|
if (cm.curOp.updateInput < 2) { cm.curOp.updateInput = updateInput; }
|
|
cm.curOp.typing = true;
|
|
cm.state.pasteIncoming = cm.state.cutIncoming = -1;
|
|
}
|
|
|
|
function handlePaste(e, cm) {
|
|
var pasted = e.clipboardData && e.clipboardData.getData("Text");
|
|
if (pasted) {
|
|
e.preventDefault();
|
|
if (!cm.isReadOnly() && !cm.options.disableInput)
|
|
{ runInOp(cm, function () { return applyTextInput(cm, pasted, 0, null, "paste"); }); }
|
|
return true
|
|
}
|
|
}
|
|
|
|
function triggerElectric(cm, inserted) {
|
|
// When an 'electric' character is inserted, immediately trigger a reindent
|
|
if (!cm.options.electricChars || !cm.options.smartIndent) { return }
|
|
var sel = cm.doc.sel;
|
|
|
|
for (var i = sel.ranges.length - 1; i >= 0; i--) {
|
|
var range = sel.ranges[i];
|
|
if (range.head.ch > 100 || (i && sel.ranges[i - 1].head.line == range.head.line)) { continue }
|
|
var mode = cm.getModeAt(range.head);
|
|
var indented = false;
|
|
if (mode.electricChars) {
|
|
for (var j = 0; j < mode.electricChars.length; j++)
|
|
{ if (inserted.indexOf(mode.electricChars.charAt(j)) > -1) {
|
|
indented = indentLine(cm, range.head.line, "smart");
|
|
break
|
|
} }
|
|
} else if (mode.electricInput) {
|
|
if (mode.electricInput.test(getLine(cm.doc, range.head.line).text.slice(0, range.head.ch)))
|
|
{ indented = indentLine(cm, range.head.line, "smart"); }
|
|
}
|
|
if (indented) { signalLater(cm, "electricInput", cm, range.head.line); }
|
|
}
|
|
}
|
|
|
|
function copyableRanges(cm) {
|
|
var text = [], ranges = [];
|
|
for (var i = 0; i < cm.doc.sel.ranges.length; i++) {
|
|
var line = cm.doc.sel.ranges[i].head.line;
|
|
var lineRange = {anchor: Pos(line, 0), head: Pos(line + 1, 0)};
|
|
ranges.push(lineRange);
|
|
text.push(cm.getRange(lineRange.anchor, lineRange.head));
|
|
}
|
|
return {text: text, ranges: ranges}
|
|
}
|
|
|
|
function disableBrowserMagic(field, spellcheck, autocorrect, autocapitalize) {
|
|
field.setAttribute("autocorrect", autocorrect ? "" : "off");
|
|
field.setAttribute("autocapitalize", autocapitalize ? "" : "off");
|
|
field.setAttribute("spellcheck", !!spellcheck);
|
|
}
|
|
|
|
function hiddenTextarea() {
|
|
var te = elt("textarea", null, null, "position: absolute; bottom: -1em; padding: 0; width: 1px; height: 1em; min-height: 1em; outline: none");
|
|
var div = elt("div", [te], null, "overflow: hidden; position: relative; width: 3px; height: 0px;");
|
|
// The textarea is kept positioned near the cursor to prevent the
|
|
// fact that it'll be scrolled into view on input from scrolling
|
|
// our fake cursor out of view. On webkit, when wrap=off, paste is
|
|
// very slow. So make the area wide instead.
|
|
if (webkit) { te.style.width = "1000px"; }
|
|
else { te.setAttribute("wrap", "off"); }
|
|
// If border: 0; -- iOS fails to open keyboard (issue #1287)
|
|
if (ios) { te.style.border = "1px solid black"; }
|
|
disableBrowserMagic(te);
|
|
return div
|
|
}
|
|
|
|
// The publicly visible API. Note that methodOp(f) means
|
|
// 'wrap f in an operation, performed on its `this` parameter'.
|
|
|
|
// This is not the complete set of editor methods. Most of the
|
|
// methods defined on the Doc type are also injected into
|
|
// CodeMirror.prototype, for backwards compatibility and
|
|
// convenience.
|
|
|
|
function addEditorMethods(CodeMirror) {
|
|
var optionHandlers = CodeMirror.optionHandlers;
|
|
|
|
var helpers = CodeMirror.helpers = {};
|
|
|
|
CodeMirror.prototype = {
|
|
constructor: CodeMirror,
|
|
focus: function(){window.focus(); this.display.input.focus();},
|
|
|
|
setOption: function(option, value) {
|
|
var options = this.options, old = options[option];
|
|
if (options[option] == value && option != "mode") { return }
|
|
options[option] = value;
|
|
if (optionHandlers.hasOwnProperty(option))
|
|
{ operation(this, optionHandlers[option])(this, value, old); }
|
|
signal(this, "optionChange", this, option);
|
|
},
|
|
|
|
getOption: function(option) {return this.options[option]},
|
|
getDoc: function() {return this.doc},
|
|
|
|
addKeyMap: function(map, bottom) {
|
|
this.state.keyMaps[bottom ? "push" : "unshift"](getKeyMap(map));
|
|
},
|
|
removeKeyMap: function(map) {
|
|
var maps = this.state.keyMaps;
|
|
for (var i = 0; i < maps.length; ++i)
|
|
{ if (maps[i] == map || maps[i].name == map) {
|
|
maps.splice(i, 1);
|
|
return true
|
|
} }
|
|
},
|
|
|
|
addOverlay: methodOp(function(spec, options) {
|
|
var mode = spec.token ? spec : CodeMirror.getMode(this.options, spec);
|
|
if (mode.startState) { throw new Error("Overlays may not be stateful.") }
|
|
insertSorted(this.state.overlays,
|
|
{mode: mode, modeSpec: spec, opaque: options && options.opaque,
|
|
priority: (options && options.priority) || 0},
|
|
function (overlay) { return overlay.priority; });
|
|
this.state.modeGen++;
|
|
regChange(this);
|
|
}),
|
|
removeOverlay: methodOp(function(spec) {
|
|
var overlays = this.state.overlays;
|
|
for (var i = 0; i < overlays.length; ++i) {
|
|
var cur = overlays[i].modeSpec;
|
|
if (cur == spec || typeof spec == "string" && cur.name == spec) {
|
|
overlays.splice(i, 1);
|
|
this.state.modeGen++;
|
|
regChange(this);
|
|
return
|
|
}
|
|
}
|
|
}),
|
|
|
|
indentLine: methodOp(function(n, dir, aggressive) {
|
|
if (typeof dir != "string" && typeof dir != "number") {
|
|
if (dir == null) { dir = this.options.smartIndent ? "smart" : "prev"; }
|
|
else { dir = dir ? "add" : "subtract"; }
|
|
}
|
|
if (isLine(this.doc, n)) { indentLine(this, n, dir, aggressive); }
|
|
}),
|
|
indentSelection: methodOp(function(how) {
|
|
var ranges = this.doc.sel.ranges, end = -1;
|
|
for (var i = 0; i < ranges.length; i++) {
|
|
var range = ranges[i];
|
|
if (!range.empty()) {
|
|
var from = range.from(), to = range.to();
|
|
var start = Math.max(end, from.line);
|
|
end = Math.min(this.lastLine(), to.line - (to.ch ? 0 : 1)) + 1;
|
|
for (var j = start; j < end; ++j)
|
|
{ indentLine(this, j, how); }
|
|
var newRanges = this.doc.sel.ranges;
|
|
if (from.ch == 0 && ranges.length == newRanges.length && newRanges[i].from().ch > 0)
|
|
{ replaceOneSelection(this.doc, i, new Range(from, newRanges[i].to()), sel_dontScroll); }
|
|
} else if (range.head.line > end) {
|
|
indentLine(this, range.head.line, how, true);
|
|
end = range.head.line;
|
|
if (i == this.doc.sel.primIndex) { ensureCursorVisible(this); }
|
|
}
|
|
}
|
|
}),
|
|
|
|
// Fetch the parser token for a given character. Useful for hacks
|
|
// that want to inspect the mode state (say, for completion).
|
|
getTokenAt: function(pos, precise) {
|
|
return takeToken(this, pos, precise)
|
|
},
|
|
|
|
getLineTokens: function(line, precise) {
|
|
return takeToken(this, Pos(line), precise, true)
|
|
},
|
|
|
|
getTokenTypeAt: function(pos) {
|
|
pos = clipPos(this.doc, pos);
|
|
var styles = getLineStyles(this, getLine(this.doc, pos.line));
|
|
var before = 0, after = (styles.length - 1) / 2, ch = pos.ch;
|
|
var type;
|
|
if (ch == 0) { type = styles[2]; }
|
|
else { for (;;) {
|
|
var mid = (before + after) >> 1;
|
|
if ((mid ? styles[mid * 2 - 1] : 0) >= ch) { after = mid; }
|
|
else if (styles[mid * 2 + 1] < ch) { before = mid + 1; }
|
|
else { type = styles[mid * 2 + 2]; break }
|
|
} }
|
|
var cut = type ? type.indexOf("overlay ") : -1;
|
|
return cut < 0 ? type : cut == 0 ? null : type.slice(0, cut - 1)
|
|
},
|
|
|
|
getModeAt: function(pos) {
|
|
var mode = this.doc.mode;
|
|
if (!mode.innerMode) { return mode }
|
|
return CodeMirror.innerMode(mode, this.getTokenAt(pos).state).mode
|
|
},
|
|
|
|
getHelper: function(pos, type) {
|
|
return this.getHelpers(pos, type)[0]
|
|
},
|
|
|
|
getHelpers: function(pos, type) {
|
|
var found = [];
|
|
if (!helpers.hasOwnProperty(type)) { return found }
|
|
var help = helpers[type], mode = this.getModeAt(pos);
|
|
if (typeof mode[type] == "string") {
|
|
if (help[mode[type]]) { found.push(help[mode[type]]); }
|
|
} else if (mode[type]) {
|
|
for (var i = 0; i < mode[type].length; i++) {
|
|
var val = help[mode[type][i]];
|
|
if (val) { found.push(val); }
|
|
}
|
|
} else if (mode.helperType && help[mode.helperType]) {
|
|
found.push(help[mode.helperType]);
|
|
} else if (help[mode.name]) {
|
|
found.push(help[mode.name]);
|
|
}
|
|
for (var i$1 = 0; i$1 < help._global.length; i$1++) {
|
|
var cur = help._global[i$1];
|
|
if (cur.pred(mode, this) && indexOf(found, cur.val) == -1)
|
|
{ found.push(cur.val); }
|
|
}
|
|
return found
|
|
},
|
|
|
|
getStateAfter: function(line, precise) {
|
|
var doc = this.doc;
|
|
line = clipLine(doc, line == null ? doc.first + doc.size - 1: line);
|
|
return getContextBefore(this, line + 1, precise).state
|
|
},
|
|
|
|
cursorCoords: function(start, mode) {
|
|
var pos, range = this.doc.sel.primary();
|
|
if (start == null) { pos = range.head; }
|
|
else if (typeof start == "object") { pos = clipPos(this.doc, start); }
|
|
else { pos = start ? range.from() : range.to(); }
|
|
return cursorCoords(this, pos, mode || "page")
|
|
},
|
|
|
|
charCoords: function(pos, mode) {
|
|
return charCoords(this, clipPos(this.doc, pos), mode || "page")
|
|
},
|
|
|
|
coordsChar: function(coords, mode) {
|
|
coords = fromCoordSystem(this, coords, mode || "page");
|
|
return coordsChar(this, coords.left, coords.top)
|
|
},
|
|
|
|
lineAtHeight: function(height, mode) {
|
|
height = fromCoordSystem(this, {top: height, left: 0}, mode || "page").top;
|
|
return lineAtHeight(this.doc, height + this.display.viewOffset)
|
|
},
|
|
heightAtLine: function(line, mode, includeWidgets) {
|
|
var end = false, lineObj;
|
|
if (typeof line == "number") {
|
|
var last = this.doc.first + this.doc.size - 1;
|
|
if (line < this.doc.first) { line = this.doc.first; }
|
|
else if (line > last) { line = last; end = true; }
|
|
lineObj = getLine(this.doc, line);
|
|
} else {
|
|
lineObj = line;
|
|
}
|
|
return intoCoordSystem(this, lineObj, {top: 0, left: 0}, mode || "page", includeWidgets || end).top +
|
|
(end ? this.doc.height - heightAtLine(lineObj) : 0)
|
|
},
|
|
|
|
defaultTextHeight: function() { return textHeight(this.display) },
|
|
defaultCharWidth: function() { return charWidth(this.display) },
|
|
|
|
getViewport: function() { return {from: this.display.viewFrom, to: this.display.viewTo}},
|
|
|
|
addWidget: function(pos, node, scroll, vert, horiz) {
|
|
var display = this.display;
|
|
pos = cursorCoords(this, clipPos(this.doc, pos));
|
|
var top = pos.bottom, left = pos.left;
|
|
node.style.position = "absolute";
|
|
node.setAttribute("cm-ignore-events", "true");
|
|
this.display.input.setUneditable(node);
|
|
display.sizer.appendChild(node);
|
|
if (vert == "over") {
|
|
top = pos.top;
|
|
} else if (vert == "above" || vert == "near") {
|
|
var vspace = Math.max(display.wrapper.clientHeight, this.doc.height),
|
|
hspace = Math.max(display.sizer.clientWidth, display.lineSpace.clientWidth);
|
|
// Default to positioning above (if specified and possible); otherwise default to positioning below
|
|
if ((vert == 'above' || pos.bottom + node.offsetHeight > vspace) && pos.top > node.offsetHeight)
|
|
{ top = pos.top - node.offsetHeight; }
|
|
else if (pos.bottom + node.offsetHeight <= vspace)
|
|
{ top = pos.bottom; }
|
|
if (left + node.offsetWidth > hspace)
|
|
{ left = hspace - node.offsetWidth; }
|
|
}
|
|
node.style.top = top + "px";
|
|
node.style.left = node.style.right = "";
|
|
if (horiz == "right") {
|
|
left = display.sizer.clientWidth - node.offsetWidth;
|
|
node.style.right = "0px";
|
|
} else {
|
|
if (horiz == "left") { left = 0; }
|
|
else if (horiz == "middle") { left = (display.sizer.clientWidth - node.offsetWidth) / 2; }
|
|
node.style.left = left + "px";
|
|
}
|
|
if (scroll)
|
|
{ scrollIntoView(this, {left: left, top: top, right: left + node.offsetWidth, bottom: top + node.offsetHeight}); }
|
|
},
|
|
|
|
triggerOnKeyDown: methodOp(onKeyDown),
|
|
triggerOnKeyPress: methodOp(onKeyPress),
|
|
triggerOnKeyUp: onKeyUp,
|
|
triggerOnMouseDown: methodOp(onMouseDown),
|
|
|
|
execCommand: function(cmd) {
|
|
if (commands.hasOwnProperty(cmd))
|
|
{ return commands[cmd].call(null, this) }
|
|
},
|
|
|
|
triggerElectric: methodOp(function(text) { triggerElectric(this, text); }),
|
|
|
|
findPosH: function(from, amount, unit, visually) {
|
|
var dir = 1;
|
|
if (amount < 0) { dir = -1; amount = -amount; }
|
|
var cur = clipPos(this.doc, from);
|
|
for (var i = 0; i < amount; ++i) {
|
|
cur = findPosH(this.doc, cur, dir, unit, visually);
|
|
if (cur.hitSide) { break }
|
|
}
|
|
return cur
|
|
},
|
|
|
|
moveH: methodOp(function(dir, unit) {
|
|
var this$1 = this;
|
|
|
|
this.extendSelectionsBy(function (range) {
|
|
if (this$1.display.shift || this$1.doc.extend || range.empty())
|
|
{ return findPosH(this$1.doc, range.head, dir, unit, this$1.options.rtlMoveVisually) }
|
|
else
|
|
{ return dir < 0 ? range.from() : range.to() }
|
|
}, sel_move);
|
|
}),
|
|
|
|
deleteH: methodOp(function(dir, unit) {
|
|
var sel = this.doc.sel, doc = this.doc;
|
|
if (sel.somethingSelected())
|
|
{ doc.replaceSelection("", null, "+delete"); }
|
|
else
|
|
{ deleteNearSelection(this, function (range) {
|
|
var other = findPosH(doc, range.head, dir, unit, false);
|
|
return dir < 0 ? {from: other, to: range.head} : {from: range.head, to: other}
|
|
}); }
|
|
}),
|
|
|
|
findPosV: function(from, amount, unit, goalColumn) {
|
|
var dir = 1, x = goalColumn;
|
|
if (amount < 0) { dir = -1; amount = -amount; }
|
|
var cur = clipPos(this.doc, from);
|
|
for (var i = 0; i < amount; ++i) {
|
|
var coords = cursorCoords(this, cur, "div");
|
|
if (x == null) { x = coords.left; }
|
|
else { coords.left = x; }
|
|
cur = findPosV(this, coords, dir, unit);
|
|
if (cur.hitSide) { break }
|
|
}
|
|
return cur
|
|
},
|
|
|
|
moveV: methodOp(function(dir, unit) {
|
|
var this$1 = this;
|
|
|
|
var doc = this.doc, goals = [];
|
|
var collapse = !this.display.shift && !doc.extend && doc.sel.somethingSelected();
|
|
doc.extendSelectionsBy(function (range) {
|
|
if (collapse)
|
|
{ return dir < 0 ? range.from() : range.to() }
|
|
var headPos = cursorCoords(this$1, range.head, "div");
|
|
if (range.goalColumn != null) { headPos.left = range.goalColumn; }
|
|
goals.push(headPos.left);
|
|
var pos = findPosV(this$1, headPos, dir, unit);
|
|
if (unit == "page" && range == doc.sel.primary())
|
|
{ addToScrollTop(this$1, charCoords(this$1, pos, "div").top - headPos.top); }
|
|
return pos
|
|
}, sel_move);
|
|
if (goals.length) { for (var i = 0; i < doc.sel.ranges.length; i++)
|
|
{ doc.sel.ranges[i].goalColumn = goals[i]; } }
|
|
}),
|
|
|
|
// Find the word at the given position (as returned by coordsChar).
|
|
findWordAt: function(pos) {
|
|
var doc = this.doc, line = getLine(doc, pos.line).text;
|
|
var start = pos.ch, end = pos.ch;
|
|
if (line) {
|
|
var helper = this.getHelper(pos, "wordChars");
|
|
if ((pos.sticky == "before" || end == line.length) && start) { --start; } else { ++end; }
|
|
var startChar = line.charAt(start);
|
|
var check = isWordChar(startChar, helper)
|
|
? function (ch) { return isWordChar(ch, helper); }
|
|
: /\s/.test(startChar) ? function (ch) { return /\s/.test(ch); }
|
|
: function (ch) { return (!/\s/.test(ch) && !isWordChar(ch)); };
|
|
while (start > 0 && check(line.charAt(start - 1))) { --start; }
|
|
while (end < line.length && check(line.charAt(end))) { ++end; }
|
|
}
|
|
return new Range(Pos(pos.line, start), Pos(pos.line, end))
|
|
},
|
|
|
|
toggleOverwrite: function(value) {
|
|
if (value != null && value == this.state.overwrite) { return }
|
|
if (this.state.overwrite = !this.state.overwrite)
|
|
{ addClass(this.display.cursorDiv, "CodeMirror-overwrite"); }
|
|
else
|
|
{ rmClass(this.display.cursorDiv, "CodeMirror-overwrite"); }
|
|
|
|
signal(this, "overwriteToggle", this, this.state.overwrite);
|
|
},
|
|
hasFocus: function() { return this.display.input.getField() == activeElt() },
|
|
isReadOnly: function() { return !!(this.options.readOnly || this.doc.cantEdit) },
|
|
|
|
scrollTo: methodOp(function (x, y) { scrollToCoords(this, x, y); }),
|
|
getScrollInfo: function() {
|
|
var scroller = this.display.scroller;
|
|
return {left: scroller.scrollLeft, top: scroller.scrollTop,
|
|
height: scroller.scrollHeight - scrollGap(this) - this.display.barHeight,
|
|
width: scroller.scrollWidth - scrollGap(this) - this.display.barWidth,
|
|
clientHeight: displayHeight(this), clientWidth: displayWidth(this)}
|
|
},
|
|
|
|
scrollIntoView: methodOp(function(range, margin) {
|
|
if (range == null) {
|
|
range = {from: this.doc.sel.primary().head, to: null};
|
|
if (margin == null) { margin = this.options.cursorScrollMargin; }
|
|
} else if (typeof range == "number") {
|
|
range = {from: Pos(range, 0), to: null};
|
|
} else if (range.from == null) {
|
|
range = {from: range, to: null};
|
|
}
|
|
if (!range.to) { range.to = range.from; }
|
|
range.margin = margin || 0;
|
|
|
|
if (range.from.line != null) {
|
|
scrollToRange(this, range);
|
|
} else {
|
|
scrollToCoordsRange(this, range.from, range.to, range.margin);
|
|
}
|
|
}),
|
|
|
|
setSize: methodOp(function(width, height) {
|
|
var this$1 = this;
|
|
|
|
var interpret = function (val) { return typeof val == "number" || /^\d+$/.test(String(val)) ? val + "px" : val; };
|
|
if (width != null) { this.display.wrapper.style.width = interpret(width); }
|
|
if (height != null) { this.display.wrapper.style.height = interpret(height); }
|
|
if (this.options.lineWrapping) { clearLineMeasurementCache(this); }
|
|
var lineNo = this.display.viewFrom;
|
|
this.doc.iter(lineNo, this.display.viewTo, function (line) {
|
|
if (line.widgets) { for (var i = 0; i < line.widgets.length; i++)
|
|
{ if (line.widgets[i].noHScroll) { regLineChange(this$1, lineNo, "widget"); break } } }
|
|
++lineNo;
|
|
});
|
|
this.curOp.forceUpdate = true;
|
|
signal(this, "refresh", this);
|
|
}),
|
|
|
|
operation: function(f){return runInOp(this, f)},
|
|
startOperation: function(){return startOperation(this)},
|
|
endOperation: function(){return endOperation(this)},
|
|
|
|
refresh: methodOp(function() {
|
|
var oldHeight = this.display.cachedTextHeight;
|
|
regChange(this);
|
|
this.curOp.forceUpdate = true;
|
|
clearCaches(this);
|
|
scrollToCoords(this, this.doc.scrollLeft, this.doc.scrollTop);
|
|
updateGutterSpace(this.display);
|
|
if (oldHeight == null || Math.abs(oldHeight - textHeight(this.display)) > .5 || this.options.lineWrapping)
|
|
{ estimateLineHeights(this); }
|
|
signal(this, "refresh", this);
|
|
}),
|
|
|
|
swapDoc: methodOp(function(doc) {
|
|
var old = this.doc;
|
|
old.cm = null;
|
|
// Cancel the current text selection if any (#5821)
|
|
if (this.state.selectingText) { this.state.selectingText(); }
|
|
attachDoc(this, doc);
|
|
clearCaches(this);
|
|
this.display.input.reset();
|
|
scrollToCoords(this, doc.scrollLeft, doc.scrollTop);
|
|
this.curOp.forceScroll = true;
|
|
signalLater(this, "swapDoc", this, old);
|
|
return old
|
|
}),
|
|
|
|
phrase: function(phraseText) {
|
|
var phrases = this.options.phrases;
|
|
return phrases && Object.prototype.hasOwnProperty.call(phrases, phraseText) ? phrases[phraseText] : phraseText
|
|
},
|
|
|
|
getInputField: function(){return this.display.input.getField()},
|
|
getWrapperElement: function(){return this.display.wrapper},
|
|
getScrollerElement: function(){return this.display.scroller},
|
|
getGutterElement: function(){return this.display.gutters}
|
|
};
|
|
eventMixin(CodeMirror);
|
|
|
|
CodeMirror.registerHelper = function(type, name, value) {
|
|
if (!helpers.hasOwnProperty(type)) { helpers[type] = CodeMirror[type] = {_global: []}; }
|
|
helpers[type][name] = value;
|
|
};
|
|
CodeMirror.registerGlobalHelper = function(type, name, predicate, value) {
|
|
CodeMirror.registerHelper(type, name, value);
|
|
helpers[type]._global.push({pred: predicate, val: value});
|
|
};
|
|
}
|
|
|
|
// Used for horizontal relative motion. Dir is -1 or 1 (left or
|
|
// right), unit can be "codepoint", "char", "column" (like char, but
|
|
// doesn't cross line boundaries), "word" (across next word), or
|
|
// "group" (to the start of next group of word or
|
|
// non-word-non-whitespace chars). The visually param controls
|
|
// whether, in right-to-left text, direction 1 means to move towards
|
|
// the next index in the string, or towards the character to the right
|
|
// of the current position. The resulting position will have a
|
|
// hitSide=true property if it reached the end of the document.
|
|
function findPosH(doc, pos, dir, unit, visually) {
|
|
var oldPos = pos;
|
|
var origDir = dir;
|
|
var lineObj = getLine(doc, pos.line);
|
|
var lineDir = visually && doc.direction == "rtl" ? -dir : dir;
|
|
function findNextLine() {
|
|
var l = pos.line + lineDir;
|
|
if (l < doc.first || l >= doc.first + doc.size) { return false }
|
|
pos = new Pos(l, pos.ch, pos.sticky);
|
|
return lineObj = getLine(doc, l)
|
|
}
|
|
function moveOnce(boundToLine) {
|
|
var next;
|
|
if (unit == "codepoint") {
|
|
var ch = lineObj.text.charCodeAt(pos.ch + (dir > 0 ? 0 : -1));
|
|
if (isNaN(ch)) {
|
|
next = null;
|
|
} else {
|
|
var astral = dir > 0 ? ch >= 0xD800 && ch < 0xDC00 : ch >= 0xDC00 && ch < 0xDFFF;
|
|
next = new Pos(pos.line, Math.max(0, Math.min(lineObj.text.length, pos.ch + dir * (astral ? 2 : 1))), -dir);
|
|
}
|
|
} else if (visually) {
|
|
next = moveVisually(doc.cm, lineObj, pos, dir);
|
|
} else {
|
|
next = moveLogically(lineObj, pos, dir);
|
|
}
|
|
if (next == null) {
|
|
if (!boundToLine && findNextLine())
|
|
{ pos = endOfLine(visually, doc.cm, lineObj, pos.line, lineDir); }
|
|
else
|
|
{ return false }
|
|
} else {
|
|
pos = next;
|
|
}
|
|
return true
|
|
}
|
|
|
|
if (unit == "char" || unit == "codepoint") {
|
|
moveOnce();
|
|
} else if (unit == "column") {
|
|
moveOnce(true);
|
|
} else if (unit == "word" || unit == "group") {
|
|
var sawType = null, group = unit == "group";
|
|
var helper = doc.cm && doc.cm.getHelper(pos, "wordChars");
|
|
for (var first = true;; first = false) {
|
|
if (dir < 0 && !moveOnce(!first)) { break }
|
|
var cur = lineObj.text.charAt(pos.ch) || "\n";
|
|
var type = isWordChar(cur, helper) ? "w"
|
|
: group && cur == "\n" ? "n"
|
|
: !group || /\s/.test(cur) ? null
|
|
: "p";
|
|
if (group && !first && !type) { type = "s"; }
|
|
if (sawType && sawType != type) {
|
|
if (dir < 0) {dir = 1; moveOnce(); pos.sticky = "after";}
|
|
break
|
|
}
|
|
|
|
if (type) { sawType = type; }
|
|
if (dir > 0 && !moveOnce(!first)) { break }
|
|
}
|
|
}
|
|
var result = skipAtomic(doc, pos, oldPos, origDir, true);
|
|
if (equalCursorPos(oldPos, result)) { result.hitSide = true; }
|
|
return result
|
|
}
|
|
|
|
// For relative vertical movement. Dir may be -1 or 1. Unit can be
|
|
// "page" or "line". The resulting position will have a hitSide=true
|
|
// property if it reached the end of the document.
|
|
function findPosV(cm, pos, dir, unit) {
|
|
var doc = cm.doc, x = pos.left, y;
|
|
if (unit == "page") {
|
|
var pageSize = Math.min(cm.display.wrapper.clientHeight, window.innerHeight || document.documentElement.clientHeight);
|
|
var moveAmount = Math.max(pageSize - .5 * textHeight(cm.display), 3);
|
|
y = (dir > 0 ? pos.bottom : pos.top) + dir * moveAmount;
|
|
|
|
} else if (unit == "line") {
|
|
y = dir > 0 ? pos.bottom + 3 : pos.top - 3;
|
|
}
|
|
var target;
|
|
for (;;) {
|
|
target = coordsChar(cm, x, y);
|
|
if (!target.outside) { break }
|
|
if (dir < 0 ? y <= 0 : y >= doc.height) { target.hitSide = true; break }
|
|
y += dir * 5;
|
|
}
|
|
return target
|
|
}
|
|
|
|
// CONTENTEDITABLE INPUT STYLE
|
|
|
|
var ContentEditableInput = function(cm) {
|
|
this.cm = cm;
|
|
this.lastAnchorNode = this.lastAnchorOffset = this.lastFocusNode = this.lastFocusOffset = null;
|
|
this.polling = new Delayed();
|
|
this.composing = null;
|
|
this.gracePeriod = false;
|
|
this.readDOMTimeout = null;
|
|
};
|
|
|
|
ContentEditableInput.prototype.init = function (display) {
|
|
var this$1 = this;
|
|
|
|
var input = this, cm = input.cm;
|
|
var div = input.div = display.lineDiv;
|
|
div.contentEditable = true;
|
|
disableBrowserMagic(div, cm.options.spellcheck, cm.options.autocorrect, cm.options.autocapitalize);
|
|
|
|
function belongsToInput(e) {
|
|
for (var t = e.target; t; t = t.parentNode) {
|
|
if (t == div) { return true }
|
|
if (/\bCodeMirror-(?:line)?widget\b/.test(t.className)) { break }
|
|
}
|
|
return false
|
|
}
|
|
|
|
on(div, "paste", function (e) {
|
|
if (!belongsToInput(e) || signalDOMEvent(cm, e) || handlePaste(e, cm)) { return }
|
|
// IE doesn't fire input events, so we schedule a read for the pasted content in this way
|
|
if (ie_version <= 11) { setTimeout(operation(cm, function () { return this$1.updateFromDOM(); }), 20); }
|
|
});
|
|
|
|
on(div, "compositionstart", function (e) {
|
|
this$1.composing = {data: e.data, done: false};
|
|
});
|
|
on(div, "compositionupdate", function (e) {
|
|
if (!this$1.composing) { this$1.composing = {data: e.data, done: false}; }
|
|
});
|
|
on(div, "compositionend", function (e) {
|
|
if (this$1.composing) {
|
|
if (e.data != this$1.composing.data) { this$1.readFromDOMSoon(); }
|
|
this$1.composing.done = true;
|
|
}
|
|
});
|
|
|
|
on(div, "touchstart", function () { return input.forceCompositionEnd(); });
|
|
|
|
on(div, "input", function () {
|
|
if (!this$1.composing) { this$1.readFromDOMSoon(); }
|
|
});
|
|
|
|
function onCopyCut(e) {
|
|
if (!belongsToInput(e) || signalDOMEvent(cm, e)) { return }
|
|
if (cm.somethingSelected()) {
|
|
setLastCopied({lineWise: false, text: cm.getSelections()});
|
|
if (e.type == "cut") { cm.replaceSelection("", null, "cut"); }
|
|
} else if (!cm.options.lineWiseCopyCut) {
|
|
return
|
|
} else {
|
|
var ranges = copyableRanges(cm);
|
|
setLastCopied({lineWise: true, text: ranges.text});
|
|
if (e.type == "cut") {
|
|
cm.operation(function () {
|
|
cm.setSelections(ranges.ranges, 0, sel_dontScroll);
|
|
cm.replaceSelection("", null, "cut");
|
|
});
|
|
}
|
|
}
|
|
if (e.clipboardData) {
|
|
e.clipboardData.clearData();
|
|
var content = lastCopied.text.join("\n");
|
|
// iOS exposes the clipboard API, but seems to discard content inserted into it
|
|
e.clipboardData.setData("Text", content);
|
|
if (e.clipboardData.getData("Text") == content) {
|
|
e.preventDefault();
|
|
return
|
|
}
|
|
}
|
|
// Old-fashioned briefly-focus-a-textarea hack
|
|
var kludge = hiddenTextarea(), te = kludge.firstChild;
|
|
cm.display.lineSpace.insertBefore(kludge, cm.display.lineSpace.firstChild);
|
|
te.value = lastCopied.text.join("\n");
|
|
var hadFocus = activeElt();
|
|
selectInput(te);
|
|
setTimeout(function () {
|
|
cm.display.lineSpace.removeChild(kludge);
|
|
hadFocus.focus();
|
|
if (hadFocus == div) { input.showPrimarySelection(); }
|
|
}, 50);
|
|
}
|
|
on(div, "copy", onCopyCut);
|
|
on(div, "cut", onCopyCut);
|
|
};
|
|
|
|
ContentEditableInput.prototype.screenReaderLabelChanged = function (label) {
|
|
// Label for screenreaders, accessibility
|
|
if(label) {
|
|
this.div.setAttribute('aria-label', label);
|
|
} else {
|
|
this.div.removeAttribute('aria-label');
|
|
}
|
|
};
|
|
|
|
ContentEditableInput.prototype.prepareSelection = function () {
|
|
var result = prepareSelection(this.cm, false);
|
|
result.focus = activeElt() == this.div;
|
|
return result
|
|
};
|
|
|
|
ContentEditableInput.prototype.showSelection = function (info, takeFocus) {
|
|
if (!info || !this.cm.display.view.length) { return }
|
|
if (info.focus || takeFocus) { this.showPrimarySelection(); }
|
|
this.showMultipleSelections(info);
|
|
};
|
|
|
|
ContentEditableInput.prototype.getSelection = function () {
|
|
return this.cm.display.wrapper.ownerDocument.getSelection()
|
|
};
|
|
|
|
ContentEditableInput.prototype.showPrimarySelection = function () {
|
|
var sel = this.getSelection(), cm = this.cm, prim = cm.doc.sel.primary();
|
|
var from = prim.from(), to = prim.to();
|
|
|
|
if (cm.display.viewTo == cm.display.viewFrom || from.line >= cm.display.viewTo || to.line < cm.display.viewFrom) {
|
|
sel.removeAllRanges();
|
|
return
|
|
}
|
|
|
|
var curAnchor = domToPos(cm, sel.anchorNode, sel.anchorOffset);
|
|
var curFocus = domToPos(cm, sel.focusNode, sel.focusOffset);
|
|
if (curAnchor && !curAnchor.bad && curFocus && !curFocus.bad &&
|
|
cmp(minPos(curAnchor, curFocus), from) == 0 &&
|
|
cmp(maxPos(curAnchor, curFocus), to) == 0)
|
|
{ return }
|
|
|
|
var view = cm.display.view;
|
|
var start = (from.line >= cm.display.viewFrom && posToDOM(cm, from)) ||
|
|
{node: view[0].measure.map[2], offset: 0};
|
|
var end = to.line < cm.display.viewTo && posToDOM(cm, to);
|
|
if (!end) {
|
|
var measure = view[view.length - 1].measure;
|
|
var map = measure.maps ? measure.maps[measure.maps.length - 1] : measure.map;
|
|
end = {node: map[map.length - 1], offset: map[map.length - 2] - map[map.length - 3]};
|
|
}
|
|
|
|
if (!start || !end) {
|
|
sel.removeAllRanges();
|
|
return
|
|
}
|
|
|
|
var old = sel.rangeCount && sel.getRangeAt(0), rng;
|
|
try { rng = range(start.node, start.offset, end.offset, end.node); }
|
|
catch(e) {} // Our model of the DOM might be outdated, in which case the range we try to set can be impossible
|
|
if (rng) {
|
|
if (!gecko && cm.state.focused) {
|
|
sel.collapse(start.node, start.offset);
|
|
if (!rng.collapsed) {
|
|
sel.removeAllRanges();
|
|
sel.addRange(rng);
|
|
}
|
|
} else {
|
|
sel.removeAllRanges();
|
|
sel.addRange(rng);
|
|
}
|
|
if (old && sel.anchorNode == null) { sel.addRange(old); }
|
|
else if (gecko) { this.startGracePeriod(); }
|
|
}
|
|
this.rememberSelection();
|
|
};
|
|
|
|
ContentEditableInput.prototype.startGracePeriod = function () {
|
|
var this$1 = this;
|
|
|
|
clearTimeout(this.gracePeriod);
|
|
this.gracePeriod = setTimeout(function () {
|
|
this$1.gracePeriod = false;
|
|
if (this$1.selectionChanged())
|
|
{ this$1.cm.operation(function () { return this$1.cm.curOp.selectionChanged = true; }); }
|
|
}, 20);
|
|
};
|
|
|
|
ContentEditableInput.prototype.showMultipleSelections = function (info) {
|
|
removeChildrenAndAdd(this.cm.display.cursorDiv, info.cursors);
|
|
removeChildrenAndAdd(this.cm.display.selectionDiv, info.selection);
|
|
};
|
|
|
|
ContentEditableInput.prototype.rememberSelection = function () {
|
|
var sel = this.getSelection();
|
|
this.lastAnchorNode = sel.anchorNode; this.lastAnchorOffset = sel.anchorOffset;
|
|
this.lastFocusNode = sel.focusNode; this.lastFocusOffset = sel.focusOffset;
|
|
};
|
|
|
|
ContentEditableInput.prototype.selectionInEditor = function () {
|
|
var sel = this.getSelection();
|
|
if (!sel.rangeCount) { return false }
|
|
var node = sel.getRangeAt(0).commonAncestorContainer;
|
|
return contains(this.div, node)
|
|
};
|
|
|
|
ContentEditableInput.prototype.focus = function () {
|
|
if (this.cm.options.readOnly != "nocursor") {
|
|
if (!this.selectionInEditor() || activeElt() != this.div)
|
|
{ this.showSelection(this.prepareSelection(), true); }
|
|
this.div.focus();
|
|
}
|
|
};
|
|
ContentEditableInput.prototype.blur = function () { this.div.blur(); };
|
|
ContentEditableInput.prototype.getField = function () { return this.div };
|
|
|
|
ContentEditableInput.prototype.supportsTouch = function () { return true };
|
|
|
|
ContentEditableInput.prototype.receivedFocus = function () {
|
|
var this$1 = this;
|
|
|
|
var input = this;
|
|
if (this.selectionInEditor())
|
|
{ setTimeout(function () { return this$1.pollSelection(); }, 20); }
|
|
else
|
|
{ runInOp(this.cm, function () { return input.cm.curOp.selectionChanged = true; }); }
|
|
|
|
function poll() {
|
|
if (input.cm.state.focused) {
|
|
input.pollSelection();
|
|
input.polling.set(input.cm.options.pollInterval, poll);
|
|
}
|
|
}
|
|
this.polling.set(this.cm.options.pollInterval, poll);
|
|
};
|
|
|
|
ContentEditableInput.prototype.selectionChanged = function () {
|
|
var sel = this.getSelection();
|
|
return sel.anchorNode != this.lastAnchorNode || sel.anchorOffset != this.lastAnchorOffset ||
|
|
sel.focusNode != this.lastFocusNode || sel.focusOffset != this.lastFocusOffset
|
|
};
|
|
|
|
ContentEditableInput.prototype.pollSelection = function () {
|
|
if (this.readDOMTimeout != null || this.gracePeriod || !this.selectionChanged()) { return }
|
|
var sel = this.getSelection(), cm = this.cm;
|
|
// On Android Chrome (version 56, at least), backspacing into an
|
|
// uneditable block element will put the cursor in that element,
|
|
// and then, because it's not editable, hide the virtual keyboard.
|
|
// Because Android doesn't allow us to actually detect backspace
|
|
// presses in a sane way, this code checks for when that happens
|
|
// and simulates a backspace press in this case.
|
|
if (android && chrome && this.cm.display.gutterSpecs.length && isInGutter(sel.anchorNode)) {
|
|
this.cm.triggerOnKeyDown({type: "keydown", keyCode: 8, preventDefault: Math.abs});
|
|
this.blur();
|
|
this.focus();
|
|
return
|
|
}
|
|
if (this.composing) { return }
|
|
this.rememberSelection();
|
|
var anchor = domToPos(cm, sel.anchorNode, sel.anchorOffset);
|
|
var head = domToPos(cm, sel.focusNode, sel.focusOffset);
|
|
if (anchor && head) { runInOp(cm, function () {
|
|
setSelection(cm.doc, simpleSelection(anchor, head), sel_dontScroll);
|
|
if (anchor.bad || head.bad) { cm.curOp.selectionChanged = true; }
|
|
}); }
|
|
};
|
|
|
|
ContentEditableInput.prototype.pollContent = function () {
|
|
if (this.readDOMTimeout != null) {
|
|
clearTimeout(this.readDOMTimeout);
|
|
this.readDOMTimeout = null;
|
|
}
|
|
|
|
var cm = this.cm, display = cm.display, sel = cm.doc.sel.primary();
|
|
var from = sel.from(), to = sel.to();
|
|
if (from.ch == 0 && from.line > cm.firstLine())
|
|
{ from = Pos(from.line - 1, getLine(cm.doc, from.line - 1).length); }
|
|
if (to.ch == getLine(cm.doc, to.line).text.length && to.line < cm.lastLine())
|
|
{ to = Pos(to.line + 1, 0); }
|
|
if (from.line < display.viewFrom || to.line > display.viewTo - 1) { return false }
|
|
|
|
var fromIndex, fromLine, fromNode;
|
|
if (from.line == display.viewFrom || (fromIndex = findViewIndex(cm, from.line)) == 0) {
|
|
fromLine = lineNo(display.view[0].line);
|
|
fromNode = display.view[0].node;
|
|
} else {
|
|
fromLine = lineNo(display.view[fromIndex].line);
|
|
fromNode = display.view[fromIndex - 1].node.nextSibling;
|
|
}
|
|
var toIndex = findViewIndex(cm, to.line);
|
|
var toLine, toNode;
|
|
if (toIndex == display.view.length - 1) {
|
|
toLine = display.viewTo - 1;
|
|
toNode = display.lineDiv.lastChild;
|
|
} else {
|
|
toLine = lineNo(display.view[toIndex + 1].line) - 1;
|
|
toNode = display.view[toIndex + 1].node.previousSibling;
|
|
}
|
|
|
|
if (!fromNode) { return false }
|
|
var newText = cm.doc.splitLines(domTextBetween(cm, fromNode, toNode, fromLine, toLine));
|
|
var oldText = getBetween(cm.doc, Pos(fromLine, 0), Pos(toLine, getLine(cm.doc, toLine).text.length));
|
|
while (newText.length > 1 && oldText.length > 1) {
|
|
if (lst(newText) == lst(oldText)) { newText.pop(); oldText.pop(); toLine--; }
|
|
else if (newText[0] == oldText[0]) { newText.shift(); oldText.shift(); fromLine++; }
|
|
else { break }
|
|
}
|
|
|
|
var cutFront = 0, cutEnd = 0;
|
|
var newTop = newText[0], oldTop = oldText[0], maxCutFront = Math.min(newTop.length, oldTop.length);
|
|
while (cutFront < maxCutFront && newTop.charCodeAt(cutFront) == oldTop.charCodeAt(cutFront))
|
|
{ ++cutFront; }
|
|
var newBot = lst(newText), oldBot = lst(oldText);
|
|
var maxCutEnd = Math.min(newBot.length - (newText.length == 1 ? cutFront : 0),
|
|
oldBot.length - (oldText.length == 1 ? cutFront : 0));
|
|
while (cutEnd < maxCutEnd &&
|
|
newBot.charCodeAt(newBot.length - cutEnd - 1) == oldBot.charCodeAt(oldBot.length - cutEnd - 1))
|
|
{ ++cutEnd; }
|
|
// Try to move start of change to start of selection if ambiguous
|
|
if (newText.length == 1 && oldText.length == 1 && fromLine == from.line) {
|
|
while (cutFront && cutFront > from.ch &&
|
|
newBot.charCodeAt(newBot.length - cutEnd - 1) == oldBot.charCodeAt(oldBot.length - cutEnd - 1)) {
|
|
cutFront--;
|
|
cutEnd++;
|
|
}
|
|
}
|
|
|
|
newText[newText.length - 1] = newBot.slice(0, newBot.length - cutEnd).replace(/^\u200b+/, "");
|
|
newText[0] = newText[0].slice(cutFront).replace(/\u200b+$/, "");
|
|
|
|
var chFrom = Pos(fromLine, cutFront);
|
|
var chTo = Pos(toLine, oldText.length ? lst(oldText).length - cutEnd : 0);
|
|
if (newText.length > 1 || newText[0] || cmp(chFrom, chTo)) {
|
|
replaceRange(cm.doc, newText, chFrom, chTo, "+input");
|
|
return true
|
|
}
|
|
};
|
|
|
|
ContentEditableInput.prototype.ensurePolled = function () {
|
|
this.forceCompositionEnd();
|
|
};
|
|
ContentEditableInput.prototype.reset = function () {
|
|
this.forceCompositionEnd();
|
|
};
|
|
ContentEditableInput.prototype.forceCompositionEnd = function () {
|
|
if (!this.composing) { return }
|
|
clearTimeout(this.readDOMTimeout);
|
|
this.composing = null;
|
|
this.updateFromDOM();
|
|
this.div.blur();
|
|
this.div.focus();
|
|
};
|
|
ContentEditableInput.prototype.readFromDOMSoon = function () {
|
|
var this$1 = this;
|
|
|
|
if (this.readDOMTimeout != null) { return }
|
|
this.readDOMTimeout = setTimeout(function () {
|
|
this$1.readDOMTimeout = null;
|
|
if (this$1.composing) {
|
|
if (this$1.composing.done) { this$1.composing = null; }
|
|
else { return }
|
|
}
|
|
this$1.updateFromDOM();
|
|
}, 80);
|
|
};
|
|
|
|
ContentEditableInput.prototype.updateFromDOM = function () {
|
|
var this$1 = this;
|
|
|
|
if (this.cm.isReadOnly() || !this.pollContent())
|
|
{ runInOp(this.cm, function () { return regChange(this$1.cm); }); }
|
|
};
|
|
|
|
ContentEditableInput.prototype.setUneditable = function (node) {
|
|
node.contentEditable = "false";
|
|
};
|
|
|
|
ContentEditableInput.prototype.onKeyPress = function (e) {
|
|
if (e.charCode == 0 || this.composing) { return }
|
|
e.preventDefault();
|
|
if (!this.cm.isReadOnly())
|
|
{ operation(this.cm, applyTextInput)(this.cm, String.fromCharCode(e.charCode == null ? e.keyCode : e.charCode), 0); }
|
|
};
|
|
|
|
ContentEditableInput.prototype.readOnlyChanged = function (val) {
|
|
this.div.contentEditable = String(val != "nocursor");
|
|
};
|
|
|
|
ContentEditableInput.prototype.onContextMenu = function () {};
|
|
ContentEditableInput.prototype.resetPosition = function () {};
|
|
|
|
ContentEditableInput.prototype.needsContentAttribute = true;
|
|
|
|
function posToDOM(cm, pos) {
|
|
var view = findViewForLine(cm, pos.line);
|
|
if (!view || view.hidden) { return null }
|
|
var line = getLine(cm.doc, pos.line);
|
|
var info = mapFromLineView(view, line, pos.line);
|
|
|
|
var order = getOrder(line, cm.doc.direction), side = "left";
|
|
if (order) {
|
|
var partPos = getBidiPartAt(order, pos.ch);
|
|
side = partPos % 2 ? "right" : "left";
|
|
}
|
|
var result = nodeAndOffsetInLineMap(info.map, pos.ch, side);
|
|
result.offset = result.collapse == "right" ? result.end : result.start;
|
|
return result
|
|
}
|
|
|
|
function isInGutter(node) {
|
|
for (var scan = node; scan; scan = scan.parentNode)
|
|
{ if (/CodeMirror-gutter-wrapper/.test(scan.className)) { return true } }
|
|
return false
|
|
}
|
|
|
|
function badPos(pos, bad) { if (bad) { pos.bad = true; } return pos }
|
|
|
|
function domTextBetween(cm, from, to, fromLine, toLine) {
|
|
var text = "", closing = false, lineSep = cm.doc.lineSeparator(), extraLinebreak = false;
|
|
function recognizeMarker(id) { return function (marker) { return marker.id == id; } }
|
|
function close() {
|
|
if (closing) {
|
|
text += lineSep;
|
|
if (extraLinebreak) { text += lineSep; }
|
|
closing = extraLinebreak = false;
|
|
}
|
|
}
|
|
function addText(str) {
|
|
if (str) {
|
|
close();
|
|
text += str;
|
|
}
|
|
}
|
|
function walk(node) {
|
|
if (node.nodeType == 1) {
|
|
var cmText = node.getAttribute("cm-text");
|
|
if (cmText) {
|
|
addText(cmText);
|
|
return
|
|
}
|
|
var markerID = node.getAttribute("cm-marker"), range;
|
|
if (markerID) {
|
|
var found = cm.findMarks(Pos(fromLine, 0), Pos(toLine + 1, 0), recognizeMarker(+markerID));
|
|
if (found.length && (range = found[0].find(0)))
|
|
{ addText(getBetween(cm.doc, range.from, range.to).join(lineSep)); }
|
|
return
|
|
}
|
|
if (node.getAttribute("contenteditable") == "false") { return }
|
|
var isBlock = /^(pre|div|p|li|table|br)$/i.test(node.nodeName);
|
|
if (!/^br$/i.test(node.nodeName) && node.textContent.length == 0) { return }
|
|
|
|
if (isBlock) { close(); }
|
|
for (var i = 0; i < node.childNodes.length; i++)
|
|
{ walk(node.childNodes[i]); }
|
|
|
|
if (/^(pre|p)$/i.test(node.nodeName)) { extraLinebreak = true; }
|
|
if (isBlock) { closing = true; }
|
|
} else if (node.nodeType == 3) {
|
|
addText(node.nodeValue.replace(/\u200b/g, "").replace(/\u00a0/g, " "));
|
|
}
|
|
}
|
|
for (;;) {
|
|
walk(from);
|
|
if (from == to) { break }
|
|
from = from.nextSibling;
|
|
extraLinebreak = false;
|
|
}
|
|
return text
|
|
}
|
|
|
|
function domToPos(cm, node, offset) {
|
|
var lineNode;
|
|
if (node == cm.display.lineDiv) {
|
|
lineNode = cm.display.lineDiv.childNodes[offset];
|
|
if (!lineNode) { return badPos(cm.clipPos(Pos(cm.display.viewTo - 1)), true) }
|
|
node = null; offset = 0;
|
|
} else {
|
|
for (lineNode = node;; lineNode = lineNode.parentNode) {
|
|
if (!lineNode || lineNode == cm.display.lineDiv) { return null }
|
|
if (lineNode.parentNode && lineNode.parentNode == cm.display.lineDiv) { break }
|
|
}
|
|
}
|
|
for (var i = 0; i < cm.display.view.length; i++) {
|
|
var lineView = cm.display.view[i];
|
|
if (lineView.node == lineNode)
|
|
{ return locateNodeInLineView(lineView, node, offset) }
|
|
}
|
|
}
|
|
|
|
function locateNodeInLineView(lineView, node, offset) {
|
|
var wrapper = lineView.text.firstChild, bad = false;
|
|
if (!node || !contains(wrapper, node)) { return badPos(Pos(lineNo(lineView.line), 0), true) }
|
|
if (node == wrapper) {
|
|
bad = true;
|
|
node = wrapper.childNodes[offset];
|
|
offset = 0;
|
|
if (!node) {
|
|
var line = lineView.rest ? lst(lineView.rest) : lineView.line;
|
|
return badPos(Pos(lineNo(line), line.text.length), bad)
|
|
}
|
|
}
|
|
|
|
var textNode = node.nodeType == 3 ? node : null, topNode = node;
|
|
if (!textNode && node.childNodes.length == 1 && node.firstChild.nodeType == 3) {
|
|
textNode = node.firstChild;
|
|
if (offset) { offset = textNode.nodeValue.length; }
|
|
}
|
|
while (topNode.parentNode != wrapper) { topNode = topNode.parentNode; }
|
|
var measure = lineView.measure, maps = measure.maps;
|
|
|
|
function find(textNode, topNode, offset) {
|
|
for (var i = -1; i < (maps ? maps.length : 0); i++) {
|
|
var map = i < 0 ? measure.map : maps[i];
|
|
for (var j = 0; j < map.length; j += 3) {
|
|
var curNode = map[j + 2];
|
|
if (curNode == textNode || curNode == topNode) {
|
|
var line = lineNo(i < 0 ? lineView.line : lineView.rest[i]);
|
|
var ch = map[j] + offset;
|
|
if (offset < 0 || curNode != textNode) { ch = map[j + (offset ? 1 : 0)]; }
|
|
return Pos(line, ch)
|
|
}
|
|
}
|
|
}
|
|
}
|
|
var found = find(textNode, topNode, offset);
|
|
if (found) { return badPos(found, bad) }
|
|
|
|
// FIXME this is all really shaky. might handle the few cases it needs to handle, but likely to cause problems
|
|
for (var after = topNode.nextSibling, dist = textNode ? textNode.nodeValue.length - offset : 0; after; after = after.nextSibling) {
|
|
found = find(after, after.firstChild, 0);
|
|
if (found)
|
|
{ return badPos(Pos(found.line, found.ch - dist), bad) }
|
|
else
|
|
{ dist += after.textContent.length; }
|
|
}
|
|
for (var before = topNode.previousSibling, dist$1 = offset; before; before = before.previousSibling) {
|
|
found = find(before, before.firstChild, -1);
|
|
if (found)
|
|
{ return badPos(Pos(found.line, found.ch + dist$1), bad) }
|
|
else
|
|
{ dist$1 += before.textContent.length; }
|
|
}
|
|
}
|
|
|
|
// TEXTAREA INPUT STYLE
|
|
|
|
var TextareaInput = function(cm) {
|
|
this.cm = cm;
|
|
// See input.poll and input.reset
|
|
this.prevInput = "";
|
|
|
|
// Flag that indicates whether we expect input to appear real soon
|
|
// now (after some event like 'keypress' or 'input') and are
|
|
// polling intensively.
|
|
this.pollingFast = false;
|
|
// Self-resetting timeout for the poller
|
|
this.polling = new Delayed();
|
|
// Used to work around IE issue with selection being forgotten when focus moves away from textarea
|
|
this.hasSelection = false;
|
|
this.composing = null;
|
|
};
|
|
|
|
TextareaInput.prototype.init = function (display) {
|
|
var this$1 = this;
|
|
|
|
var input = this, cm = this.cm;
|
|
this.createField(display);
|
|
var te = this.textarea;
|
|
|
|
display.wrapper.insertBefore(this.wrapper, display.wrapper.firstChild);
|
|
|
|
// Needed to hide big blue blinking cursor on Mobile Safari (doesn't seem to work in iOS 8 anymore)
|
|
if (ios) { te.style.width = "0px"; }
|
|
|
|
on(te, "input", function () {
|
|
if (ie && ie_version >= 9 && this$1.hasSelection) { this$1.hasSelection = null; }
|
|
input.poll();
|
|
});
|
|
|
|
on(te, "paste", function (e) {
|
|
if (signalDOMEvent(cm, e) || handlePaste(e, cm)) { return }
|
|
|
|
cm.state.pasteIncoming = +new Date;
|
|
input.fastPoll();
|
|
});
|
|
|
|
function prepareCopyCut(e) {
|
|
if (signalDOMEvent(cm, e)) { return }
|
|
if (cm.somethingSelected()) {
|
|
setLastCopied({lineWise: false, text: cm.getSelections()});
|
|
} else if (!cm.options.lineWiseCopyCut) {
|
|
return
|
|
} else {
|
|
var ranges = copyableRanges(cm);
|
|
setLastCopied({lineWise: true, text: ranges.text});
|
|
if (e.type == "cut") {
|
|
cm.setSelections(ranges.ranges, null, sel_dontScroll);
|
|
} else {
|
|
input.prevInput = "";
|
|
te.value = ranges.text.join("\n");
|
|
selectInput(te);
|
|
}
|
|
}
|
|
if (e.type == "cut") { cm.state.cutIncoming = +new Date; }
|
|
}
|
|
on(te, "cut", prepareCopyCut);
|
|
on(te, "copy", prepareCopyCut);
|
|
|
|
on(display.scroller, "paste", function (e) {
|
|
if (eventInWidget(display, e) || signalDOMEvent(cm, e)) { return }
|
|
if (!te.dispatchEvent) {
|
|
cm.state.pasteIncoming = +new Date;
|
|
input.focus();
|
|
return
|
|
}
|
|
|
|
// Pass the `paste` event to the textarea so it's handled by its event listener.
|
|
var event = new Event("paste");
|
|
event.clipboardData = e.clipboardData;
|
|
te.dispatchEvent(event);
|
|
});
|
|
|
|
// Prevent normal selection in the editor (we handle our own)
|
|
on(display.lineSpace, "selectstart", function (e) {
|
|
if (!eventInWidget(display, e)) { e_preventDefault(e); }
|
|
});
|
|
|
|
on(te, "compositionstart", function () {
|
|
var start = cm.getCursor("from");
|
|
if (input.composing) { input.composing.range.clear(); }
|
|
input.composing = {
|
|
start: start,
|
|
range: cm.markText(start, cm.getCursor("to"), {className: "CodeMirror-composing"})
|
|
};
|
|
});
|
|
on(te, "compositionend", function () {
|
|
if (input.composing) {
|
|
input.poll();
|
|
input.composing.range.clear();
|
|
input.composing = null;
|
|
}
|
|
});
|
|
};
|
|
|
|
TextareaInput.prototype.createField = function (_display) {
|
|
// Wraps and hides input textarea
|
|
this.wrapper = hiddenTextarea();
|
|
// The semihidden textarea that is focused when the editor is
|
|
// focused, and receives input.
|
|
this.textarea = this.wrapper.firstChild;
|
|
};
|
|
|
|
TextareaInput.prototype.screenReaderLabelChanged = function (label) {
|
|
// Label for screenreaders, accessibility
|
|
if(label) {
|
|
this.textarea.setAttribute('aria-label', label);
|
|
} else {
|
|
this.textarea.removeAttribute('aria-label');
|
|
}
|
|
};
|
|
|
|
TextareaInput.prototype.prepareSelection = function () {
|
|
// Redraw the selection and/or cursor
|
|
var cm = this.cm, display = cm.display, doc = cm.doc;
|
|
var result = prepareSelection(cm);
|
|
|
|
// Move the hidden textarea near the cursor to prevent scrolling artifacts
|
|
if (cm.options.moveInputWithCursor) {
|
|
var headPos = cursorCoords(cm, doc.sel.primary().head, "div");
|
|
var wrapOff = display.wrapper.getBoundingClientRect(), lineOff = display.lineDiv.getBoundingClientRect();
|
|
result.teTop = Math.max(0, Math.min(display.wrapper.clientHeight - 10,
|
|
headPos.top + lineOff.top - wrapOff.top));
|
|
result.teLeft = Math.max(0, Math.min(display.wrapper.clientWidth - 10,
|
|
headPos.left + lineOff.left - wrapOff.left));
|
|
}
|
|
|
|
return result
|
|
};
|
|
|
|
TextareaInput.prototype.showSelection = function (drawn) {
|
|
var cm = this.cm, display = cm.display;
|
|
removeChildrenAndAdd(display.cursorDiv, drawn.cursors);
|
|
removeChildrenAndAdd(display.selectionDiv, drawn.selection);
|
|
if (drawn.teTop != null) {
|
|
this.wrapper.style.top = drawn.teTop + "px";
|
|
this.wrapper.style.left = drawn.teLeft + "px";
|
|
}
|
|
};
|
|
|
|
// Reset the input to correspond to the selection (or to be empty,
|
|
// when not typing and nothing is selected)
|
|
TextareaInput.prototype.reset = function (typing) {
|
|
if (this.contextMenuPending || this.composing) { return }
|
|
var cm = this.cm;
|
|
if (cm.somethingSelected()) {
|
|
this.prevInput = "";
|
|
var content = cm.getSelection();
|
|
this.textarea.value = content;
|
|
if (cm.state.focused) { selectInput(this.textarea); }
|
|
if (ie && ie_version >= 9) { this.hasSelection = content; }
|
|
} else if (!typing) {
|
|
this.prevInput = this.textarea.value = "";
|
|
if (ie && ie_version >= 9) { this.hasSelection = null; }
|
|
}
|
|
};
|
|
|
|
TextareaInput.prototype.getField = function () { return this.textarea };
|
|
|
|
TextareaInput.prototype.supportsTouch = function () { return false };
|
|
|
|
TextareaInput.prototype.focus = function () {
|
|
if (this.cm.options.readOnly != "nocursor" && (!mobile || activeElt() != this.textarea)) {
|
|
try { this.textarea.focus(); }
|
|
catch (e) {} // IE8 will throw if the textarea is display: none or not in DOM
|
|
}
|
|
};
|
|
|
|
TextareaInput.prototype.blur = function () { this.textarea.blur(); };
|
|
|
|
TextareaInput.prototype.resetPosition = function () {
|
|
this.wrapper.style.top = this.wrapper.style.left = 0;
|
|
};
|
|
|
|
TextareaInput.prototype.receivedFocus = function () { this.slowPoll(); };
|
|
|
|
// Poll for input changes, using the normal rate of polling. This
|
|
// runs as long as the editor is focused.
|
|
TextareaInput.prototype.slowPoll = function () {
|
|
var this$1 = this;
|
|
|
|
if (this.pollingFast) { return }
|
|
this.polling.set(this.cm.options.pollInterval, function () {
|
|
this$1.poll();
|
|
if (this$1.cm.state.focused) { this$1.slowPoll(); }
|
|
});
|
|
};
|
|
|
|
// When an event has just come in that is likely to add or change
|
|
// something in the input textarea, we poll faster, to ensure that
|
|
// the change appears on the screen quickly.
|
|
TextareaInput.prototype.fastPoll = function () {
|
|
var missed = false, input = this;
|
|
input.pollingFast = true;
|
|
function p() {
|
|
var changed = input.poll();
|
|
if (!changed && !missed) {missed = true; input.polling.set(60, p);}
|
|
else {input.pollingFast = false; input.slowPoll();}
|
|
}
|
|
input.polling.set(20, p);
|
|
};
|
|
|
|
// Read input from the textarea, and update the document to match.
|
|
// When something is selected, it is present in the textarea, and
|
|
// selected (unless it is huge, in which case a placeholder is
|
|
// used). When nothing is selected, the cursor sits after previously
|
|
// seen text (can be empty), which is stored in prevInput (we must
|
|
// not reset the textarea when typing, because that breaks IME).
|
|
TextareaInput.prototype.poll = function () {
|
|
var this$1 = this;
|
|
|
|
var cm = this.cm, input = this.textarea, prevInput = this.prevInput;
|
|
// Since this is called a *lot*, try to bail out as cheaply as
|
|
// possible when it is clear that nothing happened. hasSelection
|
|
// will be the case when there is a lot of text in the textarea,
|
|
// in which case reading its value would be expensive.
|
|
if (this.contextMenuPending || !cm.state.focused ||
|
|
(hasSelection(input) && !prevInput && !this.composing) ||
|
|
cm.isReadOnly() || cm.options.disableInput || cm.state.keySeq)
|
|
{ return false }
|
|
|
|
var text = input.value;
|
|
// If nothing changed, bail.
|
|
if (text == prevInput && !cm.somethingSelected()) { return false }
|
|
// Work around nonsensical selection resetting in IE9/10, and
|
|
// inexplicable appearance of private area unicode characters on
|
|
// some key combos in Mac (#2689).
|
|
if (ie && ie_version >= 9 && this.hasSelection === text ||
|
|
mac && /[\uf700-\uf7ff]/.test(text)) {
|
|
cm.display.input.reset();
|
|
return false
|
|
}
|
|
|
|
if (cm.doc.sel == cm.display.selForContextMenu) {
|
|
var first = text.charCodeAt(0);
|
|
if (first == 0x200b && !prevInput) { prevInput = "\u200b"; }
|
|
if (first == 0x21da) { this.reset(); return this.cm.execCommand("undo") }
|
|
}
|
|
// Find the part of the input that is actually new
|
|
var same = 0, l = Math.min(prevInput.length, text.length);
|
|
while (same < l && prevInput.charCodeAt(same) == text.charCodeAt(same)) { ++same; }
|
|
|
|
runInOp(cm, function () {
|
|
applyTextInput(cm, text.slice(same), prevInput.length - same,
|
|
null, this$1.composing ? "*compose" : null);
|
|
|
|
// Don't leave long text in the textarea, since it makes further polling slow
|
|
if (text.length > 1000 || text.indexOf("\n") > -1) { input.value = this$1.prevInput = ""; }
|
|
else { this$1.prevInput = text; }
|
|
|
|
if (this$1.composing) {
|
|
this$1.composing.range.clear();
|
|
this$1.composing.range = cm.markText(this$1.composing.start, cm.getCursor("to"),
|
|
{className: "CodeMirror-composing"});
|
|
}
|
|
});
|
|
return true
|
|
};
|
|
|
|
TextareaInput.prototype.ensurePolled = function () {
|
|
if (this.pollingFast && this.poll()) { this.pollingFast = false; }
|
|
};
|
|
|
|
TextareaInput.prototype.onKeyPress = function () {
|
|
if (ie && ie_version >= 9) { this.hasSelection = null; }
|
|
this.fastPoll();
|
|
};
|
|
|
|
TextareaInput.prototype.onContextMenu = function (e) {
|
|
var input = this, cm = input.cm, display = cm.display, te = input.textarea;
|
|
if (input.contextMenuPending) { input.contextMenuPending(); }
|
|
var pos = posFromMouse(cm, e), scrollPos = display.scroller.scrollTop;
|
|
if (!pos || presto) { return } // Opera is difficult.
|
|
|
|
// Reset the current text selection only if the click is done outside of the selection
|
|
// and 'resetSelectionOnContextMenu' option is true.
|
|
var reset = cm.options.resetSelectionOnContextMenu;
|
|
if (reset && cm.doc.sel.contains(pos) == -1)
|
|
{ operation(cm, setSelection)(cm.doc, simpleSelection(pos), sel_dontScroll); }
|
|
|
|
var oldCSS = te.style.cssText, oldWrapperCSS = input.wrapper.style.cssText;
|
|
var wrapperBox = input.wrapper.offsetParent.getBoundingClientRect();
|
|
input.wrapper.style.cssText = "position: static";
|
|
te.style.cssText = "position: absolute; width: 30px; height: 30px;\n top: " + (e.clientY - wrapperBox.top - 5) + "px; left: " + (e.clientX - wrapperBox.left - 5) + "px;\n z-index: 1000; background: " + (ie ? "rgba(255, 255, 255, .05)" : "transparent") + ";\n outline: none; border-width: 0; outline: none; overflow: hidden; opacity: .05; filter: alpha(opacity=5);";
|
|
var oldScrollY;
|
|
if (webkit) { oldScrollY = window.scrollY; } // Work around Chrome issue (#2712)
|
|
display.input.focus();
|
|
if (webkit) { window.scrollTo(null, oldScrollY); }
|
|
display.input.reset();
|
|
// Adds "Select all" to context menu in FF
|
|
if (!cm.somethingSelected()) { te.value = input.prevInput = " "; }
|
|
input.contextMenuPending = rehide;
|
|
display.selForContextMenu = cm.doc.sel;
|
|
clearTimeout(display.detectingSelectAll);
|
|
|
|
// Select-all will be greyed out if there's nothing to select, so
|
|
// this adds a zero-width space so that we can later check whether
|
|
// it got selected.
|
|
function prepareSelectAllHack() {
|
|
if (te.selectionStart != null) {
|
|
var selected = cm.somethingSelected();
|
|
var extval = "\u200b" + (selected ? te.value : "");
|
|
te.value = "\u21da"; // Used to catch context-menu undo
|
|
te.value = extval;
|
|
input.prevInput = selected ? "" : "\u200b";
|
|
te.selectionStart = 1; te.selectionEnd = extval.length;
|
|
// Re-set this, in case some other handler touched the
|
|
// selection in the meantime.
|
|
display.selForContextMenu = cm.doc.sel;
|
|
}
|
|
}
|
|
function rehide() {
|
|
if (input.contextMenuPending != rehide) { return }
|
|
input.contextMenuPending = false;
|
|
input.wrapper.style.cssText = oldWrapperCSS;
|
|
te.style.cssText = oldCSS;
|
|
if (ie && ie_version < 9) { display.scrollbars.setScrollTop(display.scroller.scrollTop = scrollPos); }
|
|
|
|
// Try to detect the user choosing select-all
|
|
if (te.selectionStart != null) {
|
|
if (!ie || (ie && ie_version < 9)) { prepareSelectAllHack(); }
|
|
var i = 0, poll = function () {
|
|
if (display.selForContextMenu == cm.doc.sel && te.selectionStart == 0 &&
|
|
te.selectionEnd > 0 && input.prevInput == "\u200b") {
|
|
operation(cm, selectAll)(cm);
|
|
} else if (i++ < 10) {
|
|
display.detectingSelectAll = setTimeout(poll, 500);
|
|
} else {
|
|
display.selForContextMenu = null;
|
|
display.input.reset();
|
|
}
|
|
};
|
|
display.detectingSelectAll = setTimeout(poll, 200);
|
|
}
|
|
}
|
|
|
|
if (ie && ie_version >= 9) { prepareSelectAllHack(); }
|
|
if (captureRightClick) {
|
|
e_stop(e);
|
|
var mouseup = function () {
|
|
off(window, "mouseup", mouseup);
|
|
setTimeout(rehide, 20);
|
|
};
|
|
on(window, "mouseup", mouseup);
|
|
} else {
|
|
setTimeout(rehide, 50);
|
|
}
|
|
};
|
|
|
|
TextareaInput.prototype.readOnlyChanged = function (val) {
|
|
if (!val) { this.reset(); }
|
|
this.textarea.disabled = val == "nocursor";
|
|
this.textarea.readOnly = !!val;
|
|
};
|
|
|
|
TextareaInput.prototype.setUneditable = function () {};
|
|
|
|
TextareaInput.prototype.needsContentAttribute = false;
|
|
|
|
function fromTextArea(textarea, options) {
|
|
options = options ? copyObj(options) : {};
|
|
options.value = textarea.value;
|
|
if (!options.tabindex && textarea.tabIndex)
|
|
{ options.tabindex = textarea.tabIndex; }
|
|
if (!options.placeholder && textarea.placeholder)
|
|
{ options.placeholder = textarea.placeholder; }
|
|
// Set autofocus to true if this textarea is focused, or if it has
|
|
// autofocus and no other element is focused.
|
|
if (options.autofocus == null) {
|
|
var hasFocus = activeElt();
|
|
options.autofocus = hasFocus == textarea ||
|
|
textarea.getAttribute("autofocus") != null && hasFocus == document.body;
|
|
}
|
|
|
|
function save() {textarea.value = cm.getValue();}
|
|
|
|
var realSubmit;
|
|
if (textarea.form) {
|
|
on(textarea.form, "submit", save);
|
|
// Deplorable hack to make the submit method do the right thing.
|
|
if (!options.leaveSubmitMethodAlone) {
|
|
var form = textarea.form;
|
|
realSubmit = form.submit;
|
|
try {
|
|
var wrappedSubmit = form.submit = function () {
|
|
save();
|
|
form.submit = realSubmit;
|
|
form.submit();
|
|
form.submit = wrappedSubmit;
|
|
};
|
|
} catch(e) {}
|
|
}
|
|
}
|
|
|
|
options.finishInit = function (cm) {
|
|
cm.save = save;
|
|
cm.getTextArea = function () { return textarea; };
|
|
cm.toTextArea = function () {
|
|
cm.toTextArea = isNaN; // Prevent this from being ran twice
|
|
save();
|
|
textarea.parentNode.removeChild(cm.getWrapperElement());
|
|
textarea.style.display = "";
|
|
if (textarea.form) {
|
|
off(textarea.form, "submit", save);
|
|
if (!options.leaveSubmitMethodAlone && typeof textarea.form.submit == "function")
|
|
{ textarea.form.submit = realSubmit; }
|
|
}
|
|
};
|
|
};
|
|
|
|
textarea.style.display = "none";
|
|
var cm = CodeMirror(function (node) { return textarea.parentNode.insertBefore(node, textarea.nextSibling); },
|
|
options);
|
|
return cm
|
|
}
|
|
|
|
function addLegacyProps(CodeMirror) {
|
|
CodeMirror.off = off;
|
|
CodeMirror.on = on;
|
|
CodeMirror.wheelEventPixels = wheelEventPixels;
|
|
CodeMirror.Doc = Doc;
|
|
CodeMirror.splitLines = splitLinesAuto;
|
|
CodeMirror.countColumn = countColumn;
|
|
CodeMirror.findColumn = findColumn;
|
|
CodeMirror.isWordChar = isWordCharBasic;
|
|
CodeMirror.Pass = Pass;
|
|
CodeMirror.signal = signal;
|
|
CodeMirror.Line = Line;
|
|
CodeMirror.changeEnd = changeEnd;
|
|
CodeMirror.scrollbarModel = scrollbarModel;
|
|
CodeMirror.Pos = Pos;
|
|
CodeMirror.cmpPos = cmp;
|
|
CodeMirror.modes = modes;
|
|
CodeMirror.mimeModes = mimeModes;
|
|
CodeMirror.resolveMode = resolveMode;
|
|
CodeMirror.getMode = getMode;
|
|
CodeMirror.modeExtensions = modeExtensions;
|
|
CodeMirror.extendMode = extendMode;
|
|
CodeMirror.copyState = copyState;
|
|
CodeMirror.startState = startState;
|
|
CodeMirror.innerMode = innerMode;
|
|
CodeMirror.commands = commands;
|
|
CodeMirror.keyMap = keyMap;
|
|
CodeMirror.keyName = keyName;
|
|
CodeMirror.isModifierKey = isModifierKey;
|
|
CodeMirror.lookupKey = lookupKey;
|
|
CodeMirror.normalizeKeyMap = normalizeKeyMap;
|
|
CodeMirror.StringStream = StringStream;
|
|
CodeMirror.SharedTextMarker = SharedTextMarker;
|
|
CodeMirror.TextMarker = TextMarker;
|
|
CodeMirror.LineWidget = LineWidget;
|
|
CodeMirror.e_preventDefault = e_preventDefault;
|
|
CodeMirror.e_stopPropagation = e_stopPropagation;
|
|
CodeMirror.e_stop = e_stop;
|
|
CodeMirror.addClass = addClass;
|
|
CodeMirror.contains = contains;
|
|
CodeMirror.rmClass = rmClass;
|
|
CodeMirror.keyNames = keyNames;
|
|
}
|
|
|
|
// EDITOR CONSTRUCTOR
|
|
|
|
defineOptions(CodeMirror);
|
|
|
|
addEditorMethods(CodeMirror);
|
|
|
|
// Set up methods on CodeMirror's prototype to redirect to the editor's document.
|
|
var dontDelegate = "iter insert remove copy getEditor constructor".split(" ");
|
|
for (var prop in Doc.prototype) { if (Doc.prototype.hasOwnProperty(prop) && indexOf(dontDelegate, prop) < 0)
|
|
{ CodeMirror.prototype[prop] = (function(method) {
|
|
return function() {return method.apply(this.doc, arguments)}
|
|
})(Doc.prototype[prop]); } }
|
|
|
|
eventMixin(Doc);
|
|
CodeMirror.inputStyles = {"textarea": TextareaInput, "contenteditable": ContentEditableInput};
|
|
|
|
// Extra arguments are stored as the mode's dependencies, which is
|
|
// used by (legacy) mechanisms like loadmode.js to automatically
|
|
// load a mode. (Preferred mechanism is the require/define calls.)
|
|
CodeMirror.defineMode = function(name/*, mode, …*/) {
|
|
if (!CodeMirror.defaults.mode && name != "null") { CodeMirror.defaults.mode = name; }
|
|
defineMode.apply(this, arguments);
|
|
};
|
|
|
|
CodeMirror.defineMIME = defineMIME;
|
|
|
|
// Minimal default mode.
|
|
CodeMirror.defineMode("null", function () { return ({token: function (stream) { return stream.skipToEnd(); }}); });
|
|
CodeMirror.defineMIME("text/plain", "null");
|
|
|
|
// EXTENSIONS
|
|
|
|
CodeMirror.defineExtension = function (name, func) {
|
|
CodeMirror.prototype[name] = func;
|
|
};
|
|
CodeMirror.defineDocExtension = function (name, func) {
|
|
Doc.prototype[name] = func;
|
|
};
|
|
|
|
CodeMirror.fromTextArea = fromTextArea;
|
|
|
|
addLegacyProps(CodeMirror);
|
|
|
|
CodeMirror.version = "5.64.0";
|
|
|
|
return CodeMirror;
|
|
|
|
})));
|