ddbf20ecf6
This is a little bit messy but the basic idea is: Syntax::Highlighter now has a Syntax::HighlighterClient to talk to the outside world. It mostly communicates in LibGUI primitives that are available in headers, so inlineable. GUI::TextEditor inherits from Syntax::HighlighterClient. This let us to move GUI::JSSyntaxHighlighter to JS::SyntaxHighlighter and remove LibGUI's dependency on LibJS.
528 lines
18 KiB
C++
528 lines
18 KiB
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "Editor.h"
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#include "Debugger/Debugger.h"
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#include "EditorWrapper.h"
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#include "HackStudio.h"
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#include "Language.h"
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#include <AK/ByteBuffer.h>
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#include <AK/Debug.h>
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#include <AK/LexicalPath.h>
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#include <LibCore/DirIterator.h>
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#include <LibCore/File.h>
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#include <LibCpp/SyntaxHighlighter.h>
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#include <LibGUI/Application.h>
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#include <LibGUI/GMLSyntaxHighlighter.h>
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#include <LibGUI/INISyntaxHighlighter.h>
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#include <LibGUI/Label.h>
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#include <LibGUI/Painter.h>
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#include <LibGUI/ScrollBar.h>
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#include <LibGUI/ShellSyntaxHighlighter.h>
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#include <LibGUI/Window.h>
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#include <LibJS/SyntaxHighlighter.h>
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#include <LibMarkdown/Document.h>
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#include <LibWeb/DOM/ElementFactory.h>
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#include <LibWeb/DOM/Text.h>
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#include <LibWeb/HTML/HTMLHeadElement.h>
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#include <LibWeb/OutOfProcessWebView.h>
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#include <fcntl.h>
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namespace HackStudio {
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Editor::Editor()
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{
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set_document(CodeDocument::create());
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m_documentation_tooltip_window = GUI::Window::construct();
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m_documentation_tooltip_window->set_rect(0, 0, 500, 400);
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m_documentation_tooltip_window->set_window_type(GUI::WindowType::Tooltip);
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m_documentation_page_view = m_documentation_tooltip_window->set_main_widget<Web::OutOfProcessWebView>();
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}
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Editor::~Editor()
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{
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}
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EditorWrapper& Editor::wrapper()
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{
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return static_cast<EditorWrapper&>(*parent());
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}
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const EditorWrapper& Editor::wrapper() const
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{
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return static_cast<const EditorWrapper&>(*parent());
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}
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void Editor::focusin_event(GUI::FocusEvent& event)
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{
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wrapper().set_editor_has_focus({}, true);
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if (on_focus)
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on_focus();
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GUI::TextEditor::focusin_event(event);
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}
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void Editor::focusout_event(GUI::FocusEvent& event)
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{
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wrapper().set_editor_has_focus({}, false);
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GUI::TextEditor::focusout_event(event);
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}
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Gfx::IntRect Editor::breakpoint_icon_rect(size_t line_number) const
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{
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auto ruler_line_rect = ruler_content_rect(line_number);
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auto scroll_value = vertical_scrollbar().value();
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ruler_line_rect = ruler_line_rect.translated({ 0, -scroll_value });
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auto center = ruler_line_rect.center().translated({ ruler_line_rect.width() - 10, -line_spacing() - 3 });
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constexpr int size = 32;
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return { center.x() - size / 2, center.y() - size / 2, size, size };
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}
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void Editor::paint_event(GUI::PaintEvent& event)
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{
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GUI::TextEditor::paint_event(event);
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GUI::Painter painter(*this);
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if (is_focused()) {
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painter.add_clip_rect(event.rect());
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auto rect = frame_inner_rect();
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if (vertical_scrollbar().is_visible())
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rect.set_width(rect.width() - vertical_scrollbar().width());
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if (horizontal_scrollbar().is_visible())
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rect.set_height(rect.height() - horizontal_scrollbar().height());
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painter.draw_rect(rect, palette().selection());
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}
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if (ruler_visible()) {
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size_t first_visible_line = text_position_at(event.rect().top_left()).line();
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size_t last_visible_line = text_position_at(event.rect().bottom_right()).line();
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for (size_t line : breakpoint_lines()) {
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if (line < first_visible_line || line > last_visible_line) {
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continue;
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}
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const auto& icon = breakpoint_icon_bitmap();
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painter.blit(breakpoint_icon_rect(line).center(), icon, icon.rect());
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}
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if (execution_position().has_value()) {
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const auto& icon = current_position_icon_bitmap();
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painter.blit(breakpoint_icon_rect(execution_position().value()).center(), icon, icon.rect());
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}
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}
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}
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static HashMap<String, String>& man_paths()
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{
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static HashMap<String, String> paths;
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if (paths.is_empty()) {
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// FIXME: This should also search man3, possibly other places..
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Core::DirIterator it("/usr/share/man/man2", Core::DirIterator::Flags::SkipDots);
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while (it.has_next()) {
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auto path = String::formatted("/usr/share/man/man2/{}", it.next_path());
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auto title = LexicalPath(path).title();
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paths.set(title, path);
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}
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}
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return paths;
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}
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void Editor::show_documentation_tooltip_if_available(const String& hovered_token, const Gfx::IntPoint& screen_location)
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{
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auto it = man_paths().find(hovered_token);
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if (it == man_paths().end()) {
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#if EDITOR_DEBUG
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dbgln("no man path for {}", hovered_token);
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#endif
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m_documentation_tooltip_window->hide();
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return;
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}
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if (m_documentation_tooltip_window->is_visible() && hovered_token == m_last_parsed_token) {
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return;
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}
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#if EDITOR_DEBUG
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dbgln("opening {}", it->value);
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#endif
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auto file = Core::File::construct(it->value);
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if (!file->open(Core::File::ReadOnly)) {
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dbgln("failed to open {}, {}", it->value, file->error_string());
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return;
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}
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auto man_document = Markdown::Document::parse(file->read_all());
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if (!man_document) {
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dbgln("failed to parse markdown");
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return;
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}
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StringBuilder html;
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// FIXME: With the InProcessWebView we used to manipulate the document body directly,
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// With OutOfProcessWebView this isn't possible (at the moment). The ideal solution
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// is probably to tweak Markdown::Document::render_to_html() so we can inject styles
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// into the rendered HTML easily.
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html.append(man_document->render_to_html());
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html.append("<style>body { background-color: #dac7b5; }</style>");
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m_documentation_page_view->load_html(html.build(), {});
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m_documentation_tooltip_window->move_to(screen_location.translated(4, 4));
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m_documentation_tooltip_window->show();
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m_last_parsed_token = hovered_token;
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}
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void Editor::mousemove_event(GUI::MouseEvent& event)
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{
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GUI::TextEditor::mousemove_event(event);
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if (document().spans().is_empty())
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return;
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auto text_position = text_position_at(event.position());
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if (!text_position.is_valid()) {
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m_documentation_tooltip_window->hide();
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return;
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}
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auto highlighter = wrapper().editor().syntax_highlighter();
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if (!highlighter)
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return;
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bool hide_tooltip = true;
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bool is_over_link = false;
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auto ruler_line_rect = ruler_content_rect(text_position.line());
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auto hovering_lines_ruler = (event.position().x() < ruler_line_rect.width());
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if (hovering_lines_ruler && !is_in_drag_select())
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set_override_cursor(Gfx::StandardCursor::Arrow);
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else if (m_hovering_editor)
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set_override_cursor(m_hovering_link && event.ctrl() ? Gfx::StandardCursor::Hand : Gfx::StandardCursor::IBeam);
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for (auto& span : document().spans()) {
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if (span.range.contains(m_previous_text_position) && !span.range.contains(text_position)) {
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if (highlighter->is_navigatable(span.data) && span.attributes.underline) {
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span.attributes.underline = false;
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wrapper().editor().update();
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}
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}
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if (span.range.contains(text_position)) {
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auto adjusted_range = span.range;
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auto end_line_length = document().line(span.range.end().line()).length();
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adjusted_range.end().set_column(min(end_line_length, adjusted_range.end().column() + 1));
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auto hovered_span_text = document().text_in_range(adjusted_range);
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#if EDITOR_DEBUG
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dbgln("Hovering: {} \"{}\"", adjusted_range, hovered_span_text);
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#endif
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if (highlighter->is_navigatable(span.data)) {
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is_over_link = true;
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bool was_underlined = span.attributes.underline;
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span.attributes.underline = event.modifiers() & Mod_Ctrl;
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if (span.attributes.underline != was_underlined) {
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wrapper().editor().update();
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}
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}
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if (highlighter->is_identifier(span.data)) {
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show_documentation_tooltip_if_available(hovered_span_text, event.position().translated(screen_relative_rect().location()));
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hide_tooltip = false;
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}
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}
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}
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m_previous_text_position = text_position;
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if (hide_tooltip)
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m_documentation_tooltip_window->hide();
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m_hovering_link = is_over_link && (event.modifiers() & Mod_Ctrl);
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}
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void Editor::mousedown_event(GUI::MouseEvent& event)
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{
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auto highlighter = wrapper().editor().syntax_highlighter();
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if (!highlighter) {
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GUI::TextEditor::mousedown_event(event);
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return;
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}
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auto text_position = text_position_at(event.position());
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auto ruler_line_rect = ruler_content_rect(text_position.line());
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if (event.button() == GUI::MouseButton::Left && event.position().x() < ruler_line_rect.width()) {
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if (!breakpoint_lines().contains_slow(text_position.line())) {
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breakpoint_lines().append(text_position.line());
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Debugger::on_breakpoint_change(wrapper().filename_label().text(), text_position.line(), BreakpointChange::Added);
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} else {
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breakpoint_lines().remove_first_matching([&](size_t line) { return line == text_position.line(); });
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Debugger::on_breakpoint_change(wrapper().filename_label().text(), text_position.line(), BreakpointChange::Removed);
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}
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}
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if (!(event.modifiers() & Mod_Ctrl)) {
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GUI::TextEditor::mousedown_event(event);
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return;
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}
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if (!text_position.is_valid()) {
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GUI::TextEditor::mousedown_event(event);
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return;
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}
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if (auto* span = document().span_at(text_position)) {
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if (!highlighter->is_navigatable(span->data)) {
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GUI::TextEditor::mousedown_event(event);
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return;
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}
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auto adjusted_range = span->range;
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adjusted_range.end().set_column(adjusted_range.end().column() + 1);
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auto span_text = document().text_in_range(adjusted_range);
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auto header_path = span_text.substring(1, span_text.length() - 2);
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#if EDITOR_DEBUG
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dbgln("Ctrl+click: {} \"{}\"", adjusted_range, header_path);
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#endif
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navigate_to_include_if_available(header_path);
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return;
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}
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GUI::TextEditor::mousedown_event(event);
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}
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void Editor::enter_event(Core::Event& event)
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{
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m_hovering_editor = true;
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GUI::TextEditor::enter_event(event);
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}
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void Editor::leave_event(Core::Event& event)
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{
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m_hovering_editor = false;
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GUI::TextEditor::leave_event(event);
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}
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static HashMap<String, String>& include_paths()
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{
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static HashMap<String, String> paths;
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auto add_directory = [](String base, Optional<String> recursive, auto handle_directory) -> void {
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Core::DirIterator it(recursive.value_or(base), Core::DirIterator::Flags::SkipDots);
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while (it.has_next()) {
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auto path = it.next_full_path();
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if (!Core::File::is_directory(path)) {
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auto key = path.substring(base.length() + 1, path.length() - base.length() - 1);
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#if EDITOR_DEBUG
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dbgln("Adding header \"{}\" in path \"{}\"", key, path);
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#endif
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paths.set(key, path);
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} else {
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handle_directory(base, path, handle_directory);
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}
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}
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};
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if (paths.is_empty()) {
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add_directory(".", {}, add_directory);
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add_directory("/usr/local/include", {}, add_directory);
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add_directory("/usr/local/include/c++/9.2.0", {}, add_directory);
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add_directory("/usr/include", {}, add_directory);
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}
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return paths;
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}
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void Editor::navigate_to_include_if_available(String path)
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{
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auto it = include_paths().find(path);
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if (it == include_paths().end()) {
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#if EDITOR_DEBUG
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dbgln("no header {} found.", path);
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#endif
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return;
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}
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on_open(it->value);
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}
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void Editor::set_execution_position(size_t line_number)
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{
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code_document().set_execution_position(line_number);
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scroll_position_into_view({ line_number, 0 });
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update(breakpoint_icon_rect(line_number));
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}
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void Editor::clear_execution_position()
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{
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if (!execution_position().has_value()) {
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return;
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}
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size_t previous_position = execution_position().value();
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code_document().clear_execution_position();
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update(breakpoint_icon_rect(previous_position));
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}
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const Gfx::Bitmap& Editor::breakpoint_icon_bitmap()
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{
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static auto bitmap = Gfx::Bitmap::load_from_file("/res/icons/16x16/breakpoint.png");
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return *bitmap;
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}
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const Gfx::Bitmap& Editor::current_position_icon_bitmap()
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{
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static auto bitmap = Gfx::Bitmap::load_from_file("/res/icons/16x16/go-forward.png");
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return *bitmap;
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}
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const CodeDocument& Editor::code_document() const
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{
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const auto& doc = document();
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ASSERT(doc.is_code_document());
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return static_cast<const CodeDocument&>(doc);
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}
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CodeDocument& Editor::code_document()
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{
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return const_cast<CodeDocument&>(static_cast<const Editor&>(*this).code_document());
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}
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void Editor::set_document(GUI::TextDocument& doc)
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{
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ASSERT(doc.is_code_document());
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GUI::TextEditor::set_document(doc);
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set_override_cursor(Gfx::StandardCursor::IBeam);
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CodeDocument& code_document = static_cast<CodeDocument&>(doc);
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switch (code_document.language()) {
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case Language::Cpp:
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set_syntax_highlighter(make<Cpp::SyntaxHighlighter>());
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m_language_client = get_language_client<LanguageClients::Cpp::ServerConnection>(project().root_path());
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break;
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case Language::GML:
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set_syntax_highlighter(make<GUI::GMLSyntaxHighlighter>());
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break;
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case Language::JavaScript:
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set_syntax_highlighter(make<JS::SyntaxHighlighter>());
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break;
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case Language::Ini:
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set_syntax_highlighter(make<GUI::IniSyntaxHighlighter>());
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break;
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case Language::Shell:
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set_syntax_highlighter(make<GUI::ShellSyntaxHighlighter>());
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m_language_client = get_language_client<LanguageClients::Shell::ServerConnection>(project().root_path());
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break;
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default:
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set_syntax_highlighter({});
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}
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if (m_language_client) {
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set_autocomplete_provider(make<LanguageServerAidedAutocompleteProvider>(*m_language_client));
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dbgln("Opening {}", code_document.file_path());
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int fd = open(code_document.file_path().characters(), O_RDONLY | O_NOCTTY);
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if (fd < 0) {
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perror("open");
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return;
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}
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m_language_client->open_file(code_document.file_path(), fd);
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close(fd);
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}
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}
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Optional<Editor::AutoCompleteRequestData> Editor::get_autocomplete_request_data()
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{
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if (!wrapper().editor().m_language_client)
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return {};
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return Editor::AutoCompleteRequestData { cursor() };
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}
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void Editor::LanguageServerAidedAutocompleteProvider::provide_completions(Function<void(Vector<Entry>)> callback)
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{
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auto& editor = static_cast<Editor&>(*m_editor).wrapper().editor();
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auto data = editor.get_autocomplete_request_data();
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if (!data.has_value())
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callback({});
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m_language_client.on_autocomplete_suggestions = [callback = move(callback)](auto suggestions) {
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callback(suggestions);
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};
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m_language_client.request_autocomplete(
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editor.code_document().file_path(),
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data.value().position.line(),
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data.value().position.column());
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}
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void Editor::on_edit_action(const GUI::Command& command)
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{
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if (!m_language_client)
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return;
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if (command.is_insert_text()) {
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const GUI::InsertTextCommand& insert_command = static_cast<const GUI::InsertTextCommand&>(command);
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m_language_client->insert_text(
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code_document().file_path(),
|
|
insert_command.text(),
|
|
insert_command.range().start().line(),
|
|
insert_command.range().start().column());
|
|
return;
|
|
}
|
|
|
|
if (command.is_remove_text()) {
|
|
const GUI::RemoveTextCommand& remove_command = static_cast<const GUI::RemoveTextCommand&>(command);
|
|
m_language_client->remove_text(
|
|
code_document().file_path(),
|
|
remove_command.range().start().line(),
|
|
remove_command.range().start().column(),
|
|
remove_command.range().end().line(),
|
|
remove_command.range().end().column());
|
|
return;
|
|
}
|
|
|
|
ASSERT_NOT_REACHED();
|
|
}
|
|
|
|
void Editor::undo()
|
|
{
|
|
TextEditor::undo();
|
|
flush_file_content_to_langauge_server();
|
|
}
|
|
|
|
void Editor::redo()
|
|
{
|
|
TextEditor::redo();
|
|
flush_file_content_to_langauge_server();
|
|
}
|
|
|
|
void Editor::flush_file_content_to_langauge_server()
|
|
{
|
|
if (!m_language_client)
|
|
return;
|
|
|
|
m_language_client->set_file_content(
|
|
code_document().file_path(),
|
|
document().text());
|
|
}
|
|
}
|