398 lines
11 KiB
JavaScript
398 lines
11 KiB
JavaScript
/* global template cmFactory $ propertyToCss CssToProperty linter regExpTester
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FIREFOX toggleContextMenuDelete initBeautifyButton showHelp t tryRegExp */
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/* exported createSection */
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'use strict';
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function createResizeGrip(cm) {
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const wrapper = cm.display.wrapper;
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wrapper.classList.add('resize-grip-enabled');
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const resizeGrip = template.resizeGrip.cloneNode(true);
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wrapper.appendChild(resizeGrip);
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let lastClickTime = 0;
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let initHeight;
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let initY;
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resizeGrip.onmousedown = event => {
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initHeight = wrapper.offsetHeight;
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initY = event.pageY;
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if (event.button !== 0) {
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return;
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}
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event.preventDefault();
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if (Date.now() - lastClickTime < 500) {
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lastClickTime = 0;
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toggleSectionHeight(cm);
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return;
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}
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lastClickTime = Date.now();
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const minHeight = cm.defaultTextHeight() +
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/* .CodeMirror-lines padding */
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cm.display.lineDiv.offsetParent.offsetTop +
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/* borders */
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wrapper.offsetHeight - wrapper.clientHeight;
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wrapper.style.pointerEvents = 'none';
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document.body.style.cursor = 's-resize';
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document.addEventListener('mousemove', resize);
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document.addEventListener('mouseup', resizeStop);
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function resize(e) {
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const height = Math.max(minHeight, initHeight + e.pageY - initY);
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if (height !== wrapper.offsetHeight) {
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cm.setSize(null, height);
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}
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}
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function resizeStop() {
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document.removeEventListener('mouseup', resizeStop);
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document.removeEventListener('mousemove', resize);
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wrapper.style.pointerEvents = '';
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document.body.style.cursor = '';
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}
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};
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function toggleSectionHeight(cm) {
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if (cm.state.toggleHeightSaved) {
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// restore previous size
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cm.setSize(null, cm.state.toggleHeightSaved);
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cm.state.toggleHeightSaved = 0;
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} else {
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// maximize
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const wrapper = cm.display.wrapper;
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const allBounds = $('#sections').getBoundingClientRect();
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const pageExtrasHeight = allBounds.top + window.scrollY +
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parseFloat(getComputedStyle($('#sections')).paddingBottom);
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const sectionEl = wrapper.parentNode;
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const sectionExtrasHeight = sectionEl.clientHeight - wrapper.offsetHeight;
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cm.state.toggleHeightSaved = wrapper.clientHeight;
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cm.setSize(null, window.innerHeight - sectionExtrasHeight - pageExtrasHeight);
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const bounds = sectionEl.getBoundingClientRect();
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if (bounds.top < 0 || bounds.bottom > window.innerHeight) {
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window.scrollBy(0, bounds.top);
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}
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}
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}
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}
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function createSection({
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// data model
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originalSection,
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dirty,
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// util
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nextEditor,
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prevEditor,
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genId,
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// emit events
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// TODO: better names like `onRemoved`? Or make a real event emitter.
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showMozillaFormatImport,
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removeSection,
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insertSectionAfter,
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moveSectionUp,
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moveSectionDown,
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restoreSection,
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}) {
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const sectionId = genId();
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const el = template.section.cloneNode(true);
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const cm = cmFactory.create(wrapper => {
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el.insertBefore(wrapper, $('.code-label', el).nextSibling);
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}, {value: originalSection.code});
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el.CodeMirror = cm; // used by getAssociatedEditor
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const changeListeners = new Set();
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const appliesToContainer = $('.applies-to-list', el);
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const appliesTo = [];
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for (const [key, fnName] of Object.entries(propertyToCss)) {
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if (originalSection[key]) {
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originalSection[key].forEach(value =>
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insertApplyAfter({type: fnName, value})
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);
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}
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}
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if (!appliesTo.length) {
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insertApplyAfter({all: true});
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}
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let changeGeneration = cm.changeGeneration();
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let removed = false;
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registerEvents();
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updateRegexpTester();
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createResizeGrip(cm);
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linter.enableForEditor(cm);
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const section = {
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id: sectionId,
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el,
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cm,
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render,
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getModel,
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remove,
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destroy,
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restore,
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isRemoved: () => removed,
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onChange,
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off,
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appliesTo
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};
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return section;
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function onChange(fn) {
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changeListeners.add(fn);
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}
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function off(fn) {
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changeListeners.delete(fn);
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}
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function emitSectionChange() {
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for (const fn of changeListeners) {
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fn();
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}
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}
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function getModel() {
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const section = {
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code: cm.getValue()
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};
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for (const apply of appliesTo) {
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if (apply.all) {
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continue;
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}
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const key = CssToProperty[apply.getType()];
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if (!section[key]) {
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section[key] = [];
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}
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section[key].push(apply.getValue());
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}
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return section;
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}
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function registerEvents() {
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cm.on('changes', () => {
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const newGeneration = cm.changeGeneration();
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dirty.modify(`section.${sectionId}.code`, changeGeneration, newGeneration);
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changeGeneration = newGeneration;
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emitSectionChange();
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});
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cm.on('paste', (cm, event) => {
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const text = event.clipboardData.getData('text') || '';
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if (/@-moz-document/i.test(text) &&
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/@-moz-document\s+(url|url-prefix|domain|regexp)\(/i
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.test(text.replace(/\/\*([^*]|\*(?!\/))*(\*\/|$)/g, ''))
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) {
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event.preventDefault();
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showMozillaFormatImport(text);
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}
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});
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if (!FIREFOX) {
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cm.on('mousedown', (cm, event) => toggleContextMenuDelete.call(cm, event));
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}
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cm.display.wrapper.addEventListener('keydown', event =>
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handleKeydown(cm, event), true);
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$('.applies-to-help', el).addEventListener('click', showAppliesToHelp);
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$('.remove-section', el).addEventListener('click', () => removeSection(section));
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$('.add-section', el).addEventListener('click', () => insertSectionAfter(undefined, section));
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$('.clone-section', el).addEventListener('click', () => insertSectionAfter(getModel(), section));
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$('.move-section-up', el).addEventListener('click', () => moveSectionUp(section));
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$('.move-section-down', el).addEventListener('click', () => moveSectionDown(section));
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$('.restore-section', el).addEventListener('click', () => restoreSection(section));
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$('.test-regexp', el).addEventListener('click', () => {
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regExpTester.toggle();
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updateRegexpTester();
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});
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initBeautifyButton($('.beautify-section', el), () => [cm]);
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}
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function handleKeydown(cm, event) {
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if (event.shiftKey || event.altKey || event.metaKey) {
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return;
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}
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const {key} = event;
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const {line, ch} = cm.getCursor();
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switch (key) {
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case 'ArrowLeft':
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if (line || ch) {
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return;
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}
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// fallthrough
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case 'ArrowUp':
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cm = line === 0 && prevEditor(cm, false);
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if (!cm) {
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return;
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}
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event.preventDefault();
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event.stopPropagation();
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cm.setCursor(cm.doc.size - 1, key === 'ArrowLeft' ? 1e20 : ch);
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break;
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case 'ArrowRight':
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if (line < cm.doc.size - 1 || ch < cm.getLine(line).length - 1) {
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return;
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}
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// fallthrough
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case 'ArrowDown':
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cm = line === cm.doc.size - 1 && nextEditor(cm, false);
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if (!cm) {
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return;
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}
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event.preventDefault();
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event.stopPropagation();
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cm.setCursor(0, 0);
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break;
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}
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}
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function showAppliesToHelp(event) {
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event.preventDefault();
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showHelp(t('appliesLabel'), t('appliesHelp'));
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}
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function remove() {
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linter.disableForEditor(cm);
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el.classList.add('removed');
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removed = true;
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appliesTo.forEach(a => a.remove());
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}
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function destroy() {
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cmFactory.destroy(cm);
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}
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function restore() {
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linter.enableForEditor(cm);
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el.classList.remove('removed');
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removed = false;
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appliesTo.forEach(a => a.restore());
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render();
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}
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function render() {
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cm.refresh();
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}
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function updateRegexpTester() {
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const regexps = appliesTo.filter(a => a.getType() === 'regexp')
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.map(a => a.getValue());
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if (regexps.length) {
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el.classList.add('has-regexp');
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regExpTester.update(regexps);
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} else {
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el.classList.remove('has-regexp');
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regExpTester.toggle(false);
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}
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}
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function insertApplyAfter(init, base) {
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const apply = createApply(init);
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appliesTo.splice(base ? appliesTo.indexOf(base) + 1 : appliesTo.length, 0, apply);
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appliesToContainer.insertBefore(apply.el, base ? base.el.nextSibling : null);
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dirty.add(apply, apply);
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if (appliesTo.length > 1 && appliesTo[0].all) {
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removeApply(appliesTo[0]);
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}
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emitSectionChange();
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return apply;
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}
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function removeApply(apply) {
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const index = appliesTo.indexOf(apply);
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appliesTo.splice(index, 1);
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apply.remove();
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apply.el.remove();
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dirty.remove(apply, apply);
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if (!appliesTo.length) {
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insertApplyAfter({all: true});
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}
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emitSectionChange();
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}
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function createApply({type = 'url', value, all = false}) {
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const applyId = genId();
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const dirtyPrefix = `section.${sectionId}.apply.${applyId}`;
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const el = all ? template.appliesToEverything.cloneNode(true) :
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template.appliesTo.cloneNode(true);
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const selectEl = !all && $('.applies-type', el);
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if (selectEl) {
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selectEl.value = type;
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selectEl.addEventListener('change', () => {
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const oldType = type;
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dirty.modify(`${dirtyPrefix}.type`, type, selectEl.value);
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type = selectEl.value;
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if (oldType === 'regexp' || type === 'regexp') {
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updateRegexpTester();
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}
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emitSectionChange();
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validate();
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});
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}
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const valueEl = !all && $('.applies-value', el);
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if (valueEl) {
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valueEl.value = value;
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valueEl.addEventListener('input', () => {
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dirty.modify(`${dirtyPrefix}.value`, value, valueEl.value);
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value = valueEl.value;
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if (type === 'regexp') {
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updateRegexpTester();
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}
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emitSectionChange();
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});
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valueEl.addEventListener('change', validate);
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}
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restore();
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const apply = {
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id: applyId,
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all,
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remove,
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restore,
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el,
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getType: () => type,
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getValue: () => value,
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valueEl // used by validator
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};
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const removeButton = $('.remove-applies-to', el);
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if (removeButton) {
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removeButton.addEventListener('click', e => {
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e.preventDefault();
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removeApply(apply);
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});
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}
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$('.add-applies-to', el).addEventListener('click', e => {
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e.preventDefault();
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const newApply = insertApplyAfter({type, value: ''}, apply);
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$('input', newApply.el).focus();
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});
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return apply;
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function validate() {
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if (type !== 'regexp' || tryRegExp(value)) {
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valueEl.setCustomValidity('');
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} else {
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valueEl.setCustomValidity(t('styleBadRegexp'));
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setTimeout(() => valueEl.reportValidity());
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}
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}
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function remove() {
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if (all) {
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return;
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}
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dirty.remove(`${dirtyPrefix}.type`, type);
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dirty.remove(`${dirtyPrefix}.value`, value);
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}
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function restore() {
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if (all) {
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return;
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}
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dirty.add(`${dirtyPrefix}.type`, type);
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dirty.add(`${dirtyPrefix}.value`, value);
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}
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}
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}
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