87 lines
1.7 KiB
JavaScript
87 lines
1.7 KiB
JavaScript
(function() {
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/**
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* Debounce
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*
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* @param {Function} func
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* @param {number} wait
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* @param {boolean} immediate
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*/
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function debounce(func, wait, immediate) {
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'use strict';
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var timeout;
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wait = (typeof wait !== 'undefined') ? wait : 20;
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immediate = (typeof immediate !== 'undefined') ? immediate : true;
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return function() {
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var context = this, args = arguments;
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var later = function() {
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timeout = null;
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if (!immediate) {
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func.apply(context, args);
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}
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};
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var callNow = immediate && !timeout;
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clearTimeout(timeout);
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timeout = setTimeout(later, wait);
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if (callNow) {
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func.apply(context, args);
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}
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};
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}
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/**
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* Get page header height and use it for top-margin on
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* site-content when above mobile breakpoint
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*/
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function pageHeaderHeight() {
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if ( document.documentElement.clientWidth <= 640 ) {
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document.getElementById("primary").style.marginTop = 0;
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} else {
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var body = document.body;
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var header = document.getElementById("masthead");
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var content = document.getElementById("primary");
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var archiveHeader = body.querySelector('.page-header');
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if ( body.classList.contains("archive") ) {
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content.style.marginTop = header.offsetHeight + "px";
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} else {
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content.style.marginTop = header.offsetHeight + "px";
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}
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}
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};
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/**
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* Run our function every time the window resizes
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*/
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var isResizing = false;
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window.addEventListener( 'resize',
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debounce( function() {
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if ( isResizing ) {
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return;
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}
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isResizing = true;
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setTimeout( function() {
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pageHeaderHeight();
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isResizing = false;
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}, 150 );
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} )
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);
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/**
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* Run our page header height function
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*/
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pageHeaderHeight();
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})();
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