699 lines
21 KiB
JavaScript
699 lines
21 KiB
JavaScript
/*
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global CodeMirror linterConfig loadScript
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global editors editor styleId ownTabId
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global save toggleStyle setupAutocomplete makeSectionVisible getSectionForChild
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global getSectionsHashes
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global messageBox
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*/
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'use strict';
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onDOMscriptReady('/codemirror.js').then(() => {
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CodeMirror.defaults.lint = linterConfig.getForCodeMirror();
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const COMMANDS = {
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save,
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toggleStyle,
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toggleEditorFocus,
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jumpToLine,
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nextEditor, prevEditor,
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commentSelection,
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};
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const ORIGINAL_COMMANDS = {
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insertTab: CodeMirror.commands.insertTab,
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};
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// reroute handling to nearest editor when keypress resolves to one of these commands
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const REROUTED = new Set([
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'save',
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'toggleStyle',
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'jumpToLine',
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'nextEditor', 'prevEditor',
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'toggleEditorFocus',
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'find', 'findNext', 'findPrev', 'replace', 'replaceAll',
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'colorpicker',
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]);
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Object.assign(CodeMirror, {
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getOption,
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setOption,
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closestVisible,
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});
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Object.assign(CodeMirror.prototype, {
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getSection,
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rerouteHotkeys,
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});
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CodeMirror.defineInitHook(cm => {
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if (prefs.get('editor.livePreview') && styleId) {
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cm.on('changes', updatePreview);
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}
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if (prefs.get('editor.autocompleteOnTyping')) {
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setupAutocomplete(cm);
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}
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const wrapper = cm.display.wrapper;
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cm.on('blur', () => {
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editors.lastActive = cm;
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cm.rerouteHotkeys(true);
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setTimeout(() => {
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wrapper.classList.toggle('CodeMirror-active', wrapper.contains(document.activeElement));
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});
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});
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cm.on('focus', () => {
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cm.rerouteHotkeys(false);
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wrapper.classList.add('CodeMirror-active');
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});
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});
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new MutationObserver((mutations, observer) => {
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if (!$('#sections')) {
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return;
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}
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observer.disconnect();
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prefs.subscribe(['editor.keyMap'], showHotkeyInTooltip);
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addEventListener('showHotkeyInTooltip', showHotkeyInTooltip);
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showHotkeyInTooltip();
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// N.B. the onchange event listeners should be registered before setupLivePrefs()
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$('#options').addEventListener('change', onOptionElementChanged);
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setupLivePreview();
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buildThemeElement();
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buildKeymapElement();
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setupLivePrefs();
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Object.assign(CodeMirror.commands, COMMANDS);
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rerouteHotkeys(true);
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}).observe(document, {childList: true, subtree: true});
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return;
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////////////////////////////////////////////////
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function getOption(o) {
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return CodeMirror.defaults[o];
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}
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function setOption(o, v) {
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CodeMirror.defaults[o] = v;
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if (editors.length > 4 && (o === 'theme' || o === 'lineWrapping')) {
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throttleSetOption({key: o, value: v, index: 0});
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return;
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}
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editors.forEach(editor => {
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editor.setOption(o, v);
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});
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}
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function throttleSetOption({
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key,
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value,
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index,
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timeStart = performance.now(),
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cmStart = editors.lastActive || editors[0],
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editorsCopy = editors.slice(),
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progress,
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}) {
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if (index === 0) {
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if (!cmStart) {
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return;
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}
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cmStart.setOption(key, value);
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}
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const THROTTLE_AFTER_MS = 100;
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const THROTTLE_SHOW_PROGRESS_AFTER_MS = 100;
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const t0 = performance.now();
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const total = editorsCopy.length;
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while (index < total) {
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const cm = editorsCopy[index++];
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if (cm === cmStart ||
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cm !== editors[index] && !editors.includes(cm)) {
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continue;
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}
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cm.setOption(key, value);
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if (performance.now() - t0 > THROTTLE_AFTER_MS) {
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break;
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}
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}
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if (index >= total) {
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$.remove(progress);
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return;
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}
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if (!progress &&
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index < total / 2 &&
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t0 - timeStart > THROTTLE_SHOW_PROGRESS_AFTER_MS) {
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let option = $('#editor.' + key);
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if (option) {
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if (option.type === 'checkbox') {
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option = (option.labels || [])[0] || option.nextElementSibling || option;
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}
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progress = document.body.appendChild(
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$create('.set-option-progress', {targetElement: option}));
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}
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}
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if (progress) {
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const optionBounds = progress.targetElement.getBoundingClientRect();
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const bounds = {
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top: optionBounds.top + window.scrollY + 1,
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left: optionBounds.left + window.scrollX + 1,
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width: (optionBounds.width - 2) * index / total | 0,
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height: optionBounds.height - 2,
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};
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const style = progress.style;
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for (const prop in bounds) {
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if (bounds[prop] !== parseFloat(style[prop])) {
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style[prop] = bounds[prop] + 'px';
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}
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}
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}
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setTimeout(throttleSetOption, 0, {
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key,
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value,
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index,
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timeStart,
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cmStart,
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editorsCopy,
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progress,
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});
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}
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function getSection() {
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return this.display.wrapper.parentNode;
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}
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function nextEditor(cm) {
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return nextPrevEditor(cm, 1);
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}
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function prevEditor(cm) {
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return nextPrevEditor(cm, -1);
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}
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function nextPrevEditor(cm, direction) {
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cm = editors[(editors.indexOf(cm) + direction + editors.length) % editors.length];
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makeSectionVisible(cm);
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cm.focus();
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return cm;
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}
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function jumpToLine(cm) {
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const cur = cm.getCursor();
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refocusMinidialog(cm);
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cm.openDialog(template.jumpToLine.cloneNode(true), str => {
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const m = str.match(/^\s*(\d+)(?:\s*:\s*(\d+))?\s*$/);
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if (m) {
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cm.setCursor(m[1] - 1, m[2] ? m[2] - 1 : cur.ch);
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}
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}, {value: cur.line + 1});
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}
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function commentSelection(cm) {
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cm.blockComment(cm.getCursor('from'), cm.getCursor('to'), {fullLines: false});
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}
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function toggleEditorFocus(cm) {
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if (!cm) return;
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if (cm.hasFocus()) {
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setTimeout(() => cm.display.input.blur());
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} else {
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cm.focus();
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}
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}
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function refocusMinidialog(cm) {
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const section = cm.getSection();
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if (!$('.CodeMirror-dialog', section)) {
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return;
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}
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// close the currently opened minidialog
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cm.focus();
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// make sure to focus the input in newly opened minidialog
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setTimeout(() => {
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$('.CodeMirror-dialog', section).focus();
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});
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}
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function onOptionElementChanged(event) {
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const el = event.target;
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let option = el.id.replace(/^editor\./, '');
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if (!option) {
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console.error('no "cm_option"', el);
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return;
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}
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let value = el.type === 'checkbox' ? el.checked : el.value;
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switch (option) {
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case 'tabSize':
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value = Number(value);
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CodeMirror.setOption('indentUnit', value);
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break;
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case 'indentWithTabs':
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CodeMirror.commands.insertTab = value ?
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ORIGINAL_COMMANDS.insertTab :
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CodeMirror.commands.insertSoftTab;
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break;
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case 'theme': {
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const themeLink = $('#cm-theme');
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// use non-localized 'default' internally
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if (!value || value === 'default' || value === t('defaultTheme')) {
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value = 'default';
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if (prefs.get(el.id) !== value) {
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prefs.set(el.id, value);
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}
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themeLink.href = '';
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el.selectedIndex = 0;
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break;
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}
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const url = chrome.runtime.getURL('vendor/codemirror/theme/' + value + '.css');
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if (themeLink.href === url) {
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// preloaded in initCodeMirror()
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break;
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}
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// avoid flicker: wait for the second stylesheet to load, then apply the theme
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document.head.appendChild($create('link#cm-theme2', {rel: 'stylesheet', href: url}));
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setTimeout(() => {
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CodeMirror.setOption(option, value);
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themeLink.remove();
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$('#cm-theme2').id = 'cm-theme';
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}, 100);
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return;
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}
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case 'autocompleteOnTyping':
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editors.forEach(cm => setupAutocomplete(cm, el.checked));
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return;
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case 'autoCloseBrackets':
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Promise.resolve(value && loadScript('/vendor/codemirror/addon/edit/closebrackets.js')).then(() => {
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CodeMirror.setOption(option, value);
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});
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return;
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case 'matchHighlight':
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switch (value) {
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case 'token':
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case 'selection':
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document.body.dataset[option] = value;
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value = {showToken: value === 'token' && /[#.\-\w]/, annotateScrollbar: true};
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break;
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default:
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value = null;
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}
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option = 'highlightSelectionMatches';
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break;
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case 'colorpicker':
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return;
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}
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CodeMirror.setOption(option, value);
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}
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function buildThemeElement() {
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const themeElement = $('#editor.theme');
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const themeList = localStorage.codeMirrorThemes;
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const optionsFromArray = options => {
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const fragment = document.createDocumentFragment();
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options.forEach(opt => fragment.appendChild($create('option', opt)));
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themeElement.appendChild(fragment);
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};
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if (themeList) {
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optionsFromArray(themeList.split(/\s+/));
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} else {
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// Chrome is starting up and shows our edit.html, but the background page isn't loaded yet
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const theme = prefs.get('editor.theme');
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optionsFromArray([theme === 'default' ? t('defaultTheme') : theme]);
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getCodeMirrorThemes().then(() => {
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const themes = (localStorage.codeMirrorThemes || '').split(/\s+/);
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optionsFromArray(themes);
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themeElement.selectedIndex = Math.max(0, themes.indexOf(theme));
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});
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}
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}
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function buildKeymapElement() {
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// move 'pc' or 'mac' prefix to the end of the displayed label
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const maps = Object.keys(CodeMirror.keyMap)
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.map(name => ({
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value: name,
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name: name.replace(/^(pc|mac)(.+)/, (s, arch, baseName) =>
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baseName.toLowerCase() + '-' + (arch === 'mac' ? 'Mac' : 'PC')),
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}))
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.sort((a, b) => a.name < b.name && -1 || a.name > b.name && 1);
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const fragment = document.createDocumentFragment();
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let bin = fragment;
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let groupName;
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// group suffixed maps in <optgroup>
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maps.forEach(({value, name}, i) => {
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groupName = !name.includes('-') ? name : groupName;
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const groupWithNext = maps[i + 1] && maps[i + 1].name.startsWith(groupName);
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if (groupWithNext) {
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if (bin === fragment) {
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bin = fragment.appendChild($create('optgroup', {label: name.split('-')[0]}));
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}
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}
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const el = bin.appendChild($create('option', {value}, name));
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if (value === prefs.defaults['editor.keyMap']) {
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el.dataset.default = '';
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el.title = t('defaultTheme');
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}
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if (!groupWithNext) bin = fragment;
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});
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$('#editor.keyMap').appendChild(fragment);
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}
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////////////////////////////////////////////////
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function rerouteHotkeys(enable, immediately) {
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if (!immediately) {
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debounce(rerouteHotkeys, 0, enable, true);
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} else if (enable) {
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document.addEventListener('keydown', rerouteHandler);
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} else {
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document.removeEventListener('keydown', rerouteHandler);
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}
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}
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function rerouteHandler(event) {
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const keyName = CodeMirror.keyName(event);
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if (!keyName) {
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return;
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}
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const rerouteCommand = name => {
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if (REROUTED.has(name)) {
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CodeMirror.commands[name](closestVisible(event.target));
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return true;
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}
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};
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if (CodeMirror.lookupKey(keyName, CodeMirror.defaults.keyMap, rerouteCommand) === 'handled' ||
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CodeMirror.lookupKey(keyName, CodeMirror.defaults.extraKeys, rerouteCommand) === 'handled') {
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event.preventDefault();
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event.stopPropagation();
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}
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}
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////////////////////////////////////////////////
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// priority:
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// 1. associated CM for applies-to element
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// 2. last active if visible
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// 3. first visible
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function closestVisible(nearbyElement) {
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const cm =
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nearbyElement instanceof CodeMirror ? nearbyElement :
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nearbyElement instanceof Node && (getSectionForChild(nearbyElement) || {}).CodeMirror ||
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editors.lastActive;
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if (nearbyElement instanceof Node && cm) {
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const {left, top} = nearbyElement.getBoundingClientRect();
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const bounds = cm.display.wrapper.getBoundingClientRect();
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if (top >= 0 && top >= bounds.top &&
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left >= 0 && left >= bounds.left) {
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return cm;
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}
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}
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// closest editor should have at least 2 lines visible
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const lineHeight = editors[0].defaultTextHeight();
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const scrollY = window.scrollY;
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const windowBottom = scrollY + window.innerHeight - 2 * lineHeight;
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const allSectionsContainerTop = scrollY + $('#sections').getBoundingClientRect().top;
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const distances = [];
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const alreadyInView = cm && offscreenDistance(null, cm) === 0;
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return alreadyInView ? cm : findClosest();
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function offscreenDistance(index, cm) {
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if (index >= 0 && distances[index] !== undefined) {
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return distances[index];
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}
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const section = (cm || editors[index]).getSection();
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if (!section) {
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return 1e9;
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}
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const top = allSectionsContainerTop + section.offsetTop;
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if (top < scrollY + lineHeight) {
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return Math.max(0, scrollY - top - lineHeight);
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}
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if (top < windowBottom) {
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return 0;
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}
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const distance = top - windowBottom + section.offsetHeight;
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if (index >= 0) {
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distances[index] = distance;
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}
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return distance;
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}
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function findClosest() {
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const last = editors.length - 1;
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let a = 0;
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let b = last;
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let c;
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let distance;
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while (a < b - 1) {
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c = (a + b) / 2 | 0;
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distance = offscreenDistance(c);
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if (!distance || !c) {
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break;
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}
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const distancePrev = offscreenDistance(c - 1);
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const distanceNext = c < last ? offscreenDistance(c + 1) : 1e20;
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if (distancePrev <= distance && distance <= distanceNext) {
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b = c;
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} else {
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a = c;
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}
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}
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while (b && offscreenDistance(b - 1) <= offscreenDistance(b)) {
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b--;
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}
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const cm = editors[b];
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if (distances[b] > 0) {
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makeSectionVisible(cm);
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}
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return cm;
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}
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}
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////////////////////////////////////////////////
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function getCodeMirrorThemes() {
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if (!chrome.runtime.getPackageDirectoryEntry) {
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const themes = [
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chrome.i18n.getMessage('defaultTheme'),
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/* populate-theme-start */
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'3024-day',
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'3024-night',
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'abcdef',
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'ambiance',
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'ambiance-mobile',
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'base16-dark',
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'base16-light',
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'bespin',
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'blackboard',
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'cobalt',
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'colorforth',
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'darcula',
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'dracula',
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'duotone-dark',
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'duotone-light',
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'eclipse',
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'elegant',
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'erlang-dark',
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'gruvbox-dark',
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'hopscotch',
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'icecoder',
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'idea',
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'isotope',
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'lesser-dark',
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'liquibyte',
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'lucario',
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'material',
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'mbo',
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'mdn-like',
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'midnight',
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'monokai',
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'neat',
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'neo',
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'night',
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'oceanic-next',
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'panda-syntax',
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'paraiso-dark',
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'paraiso-light',
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'pastel-on-dark',
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'railscasts',
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'rubyblue',
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'seti',
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'shadowfox',
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'solarized',
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'ssms',
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'the-matrix',
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'tomorrow-night-bright',
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'tomorrow-night-eighties',
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'ttcn',
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'twilight',
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'vibrant-ink',
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'xq-dark',
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'xq-light',
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'yeti',
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'zenburn',
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/* populate-theme-end */
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];
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localStorage.codeMirrorThemes = themes.join(' ');
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return Promise.resolve(themes);
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}
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return new Promise(resolve => {
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chrome.runtime.getPackageDirectoryEntry(rootDir => {
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rootDir.getDirectory('vendor/codemirror/theme', {create: false}, themeDir => {
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themeDir.createReader().readEntries(entries => {
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const themes = [
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chrome.i18n.getMessage('defaultTheme')
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].concat(
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entries.filter(entry => entry.isFile)
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.sort((a, b) => (a.name < b.name ? -1 : 1))
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.map(entry => entry.name.replace(/\.css$/, ''))
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);
|
|
localStorage.codeMirrorThemes = themes.join(' ');
|
|
resolve(themes);
|
|
});
|
|
});
|
|
});
|
|
});
|
|
}
|
|
|
|
function showHotkeyInTooltip(_, mapName = prefs.get('editor.keyMap')) {
|
|
const extraKeys = CodeMirror.defaults.extraKeys;
|
|
for (const el of $$('[data-hotkey-tooltip]')) {
|
|
if (el._hotkeyTooltipKeyMap !== mapName) {
|
|
el._hotkeyTooltipKeyMap = mapName;
|
|
const title = el._hotkeyTooltipTitle = el._hotkeyTooltipTitle || el.title;
|
|
const cmd = el.dataset.hotkeyTooltip;
|
|
const key = cmd[0] === '=' ? cmd.slice(1) :
|
|
findKeyForCommand(cmd, mapName) ||
|
|
extraKeys && findKeyForCommand(cmd, extraKeys);
|
|
const newTitle = title + (title && key ? '\n' : '') + (key || '');
|
|
if (el.title !== newTitle) el.title = newTitle;
|
|
}
|
|
}
|
|
}
|
|
|
|
function findKeyForCommand(command, map) {
|
|
if (typeof map === 'string') map = CodeMirror.keyMap[map];
|
|
let key = Object.keys(map).find(k => map[k] === command);
|
|
if (key) {
|
|
return key;
|
|
}
|
|
for (const ft of Array.isArray(map.fallthrough) ? map.fallthrough : [map.fallthrough]) {
|
|
key = ft && findKeyForCommand(command, ft);
|
|
if (key) {
|
|
return key;
|
|
}
|
|
}
|
|
return '';
|
|
}
|
|
|
|
function setupLivePreview() {
|
|
if (!prefs.get('editor.livePreview') && !editors.length) {
|
|
setTimeout(setupLivePreview);
|
|
return;
|
|
}
|
|
if (styleId) {
|
|
$('#editor.livePreview').onchange = livePreviewToggled;
|
|
return;
|
|
}
|
|
// wait for #preview-label's class to lose 'hidden' after the first save
|
|
new MutationObserver((_, observer) => {
|
|
if (!styleId) return;
|
|
observer.disconnect();
|
|
setupLivePreview();
|
|
livePreviewToggled();
|
|
}).observe($('#preview-label'), {
|
|
attributes: true,
|
|
attributeFilter: ['class'],
|
|
});
|
|
}
|
|
|
|
function livePreviewToggled() {
|
|
const me = this instanceof Node ? this : $('#editor.livePreview');
|
|
const previewing = me.checked;
|
|
editors.forEach(cm => cm[previewing ? 'on' : 'off']('changes', updatePreview));
|
|
const addRemove = EventTarget.prototype[previewing ? 'addEventListener' : 'removeEventListener'];
|
|
addRemove.call($('#enabled'), 'change', updatePreview);
|
|
if (!editor) {
|
|
for (const el of $$('#sections .applies-to')) {
|
|
addRemove.call(el, 'input', updatePreview);
|
|
}
|
|
toggleLivePreviewSectionsObserver(previewing);
|
|
}
|
|
if (!previewing || document.body.classList.contains('dirty')) {
|
|
updatePreview(null, previewing);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Observes newly added section elements, and sets these event listeners:
|
|
* 1. 'changes' on CodeMirror inside
|
|
* 2. 'input' on .applies-to inside
|
|
* The goal is to avoid listening to 'input' on the entire #sections tree,
|
|
* which would trigger updatePreview() twice on any keystroke -
|
|
* both for the synthetic event from CodeMirror and the original event.
|
|
* Side effects:
|
|
* two expando properties on #sections
|
|
* 1. __livePreviewObserver
|
|
* 2. __livePreviewObserverEnabled
|
|
* @param {Boolean} enable
|
|
*/
|
|
function toggleLivePreviewSectionsObserver(enable) {
|
|
const sections = $('#sections');
|
|
const observing = sections.__livePreviewObserverEnabled;
|
|
let mo = sections.__livePreviewObserver;
|
|
if (enable && !mo) {
|
|
sections.__livePreviewObserver = mo = new MutationObserver(mutations => {
|
|
for (const {addedNodes} of mutations) {
|
|
for (const node of addedNodes) {
|
|
const el = node.children && $('.applies-to', node);
|
|
if (el) el.addEventListener('input', updatePreview);
|
|
if (node.CodeMirror) node.CodeMirror.on('changes', updatePreview);
|
|
}
|
|
}
|
|
});
|
|
}
|
|
if (enable && !observing) {
|
|
mo.observe(sections, {childList: true});
|
|
sections.__livePreviewObserverEnabled = true;
|
|
} else if (!enable && observing) {
|
|
mo.disconnect();
|
|
sections.__livePreviewObserverEnabled = false;
|
|
}
|
|
}
|
|
|
|
function updatePreview(data, previewing) {
|
|
if (previewing !== true && previewing !== false) {
|
|
if (data instanceof Event && !data.target.matches('.style-contributor')) return;
|
|
debounce(updatePreview, data && data.id === 'enabled' ? 0 : 400, null, true);
|
|
return;
|
|
}
|
|
const errors = $('#preview-errors');
|
|
API.refreshAllTabs({
|
|
reason: 'editPreview',
|
|
tabId: ownTabId,
|
|
style: {
|
|
id: styleId,
|
|
enabled: $('#enabled').checked,
|
|
sections: previewing && (editor ? editors[0].getValue() : getSectionsHashes()),
|
|
},
|
|
}).then(() => {
|
|
errors.classList.add('hidden');
|
|
}).catch(err => {
|
|
if (Array.isArray(err)) err = err.join('\n');
|
|
if (err && editor && !isNaN(err.index)) {
|
|
const pos = editors[0].posFromIndex(err.index);
|
|
err = `${pos.line}:${pos.ch} ${err}`;
|
|
}
|
|
errors.classList.remove('hidden');
|
|
errors.onclick = () => messageBox.alert(String(err), 'pre');
|
|
});
|
|
}
|
|
});
|