622 lines
18 KiB
JavaScript
622 lines
18 KiB
JavaScript
/* global showHelp toggleContextMenuDelete createSection
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CodeMirror linter createLivePreview showCodeMirrorPopup
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sectionsToMozFormat messageBox clipString
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$ $$ $create t FIREFOX API
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debounce */
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/* exported createSectionsEditor */
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'use strict';
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function createSectionsEditor(editorBase) {
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const {style, dirty} = editorBase;
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let INC_ID = 0; // an increment id that is used by various object to track the order
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const container = $('#sections');
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const sections = [];
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container.classList.add('section-editor');
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updateHeader();
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$('#to-mozilla').addEventListener('click', showMozillaFormat);
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$('#to-mozilla-help').addEventListener('click', showToMozillaHelp);
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$('#from-mozilla').addEventListener('click', () => showMozillaFormatImport());
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document.addEventListener('wheel', scrollEntirePageOnCtrlShift, {passive: false});
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CodeMirror.defaults.extraKeys['Shift-Ctrl-Wheel'] = 'scrollWindow';
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if (!FIREFOX) {
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$$([
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'input:not([type])',
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'input[type="text"]',
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'input[type="search"]',
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'input[type="number"]',
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].join(','))
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.forEach(e => e.addEventListener('mousedown', toggleContextMenuDelete));
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}
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const xo = window.IntersectionObserver && new IntersectionObserver(entries => {
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for (const {isIntersecting, target} of entries) {
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if (isIntersecting) {
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target.CodeMirror.refresh();
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xo.unobserve(target);
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}
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}
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}, {rootMargin: '100%'});
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const refreshOnView = (cm, force) =>
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force || !xo ?
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cm.refresh() :
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xo.observe(cm.display.wrapper);
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let sectionOrder = '';
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let headerOffset; // in compact mode the header is at the top so it reduces the available height
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const ready = initSections(style.sections, {isFirstInit: true});
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const livePreview = createLivePreview();
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livePreview.show(Boolean(style.id));
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return Object.assign({}, editorBase, {
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ready,
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replaceStyle,
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getEditors,
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scrollToEditor,
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getEditorTitle: cm => {
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const index = sections.filter(s => !s.isRemoved()).findIndex(s => s.cm === cm);
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return `${t('sectionCode')} ${index + 1}`;
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},
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save,
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nextEditor,
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prevEditor,
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closestVisible,
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getSearchableInputs,
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updateLivePreview,
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});
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function fitToContent(section) {
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const {el, cm, cm: {display: {wrapper, sizer}}} = section;
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if (cm.display.renderedView) {
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resize();
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} else {
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cm.on('update', resize);
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}
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function resize() {
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let contentHeight = sizer.offsetHeight;
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if (contentHeight < cm.defaultTextHeight()) {
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return;
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}
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if (headerOffset == null) {
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headerOffset = el.getBoundingClientRect().top;
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}
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contentHeight += 9; // border & resize grip
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cm.off('update', resize);
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const cmHeight = wrapper.offsetHeight;
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const maxHeight = (window.innerHeight - headerOffset) - (section.el.offsetHeight - cmHeight);
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cm.setSize(null, Math.min(contentHeight, maxHeight));
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}
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}
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function fitToAvailableSpace() {
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const ch = container.offsetHeight;
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let available = ch - sections[sections.length - 1].el.getBoundingClientRect().bottom + headerOffset;
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if (available <= 1) available = window.innerHeight - ch - headerOffset;
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const delta = Math.floor(available / sections.length);
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if (delta > 1) {
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sections.forEach(({cm}) => {
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cm.setSize(null, cm.display.wrapper.offsetHeight + delta);
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});
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}
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}
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function genId() {
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return INC_ID++;
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}
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function setGlobalProgress(done, total) {
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const progressElement = $('#global-progress') ||
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total && document.body.appendChild($create('#global-progress'));
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if (total) {
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const progress = (done / Math.max(done, total) * 100).toFixed(1);
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progressElement.style.borderLeftWidth = progress + 'vw';
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setTimeout(() => {
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progressElement.title = progress + '%';
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});
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} else {
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$.remove(progressElement);
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}
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}
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function showToMozillaHelp(event) {
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event.preventDefault();
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showHelp(t('styleMozillaFormatHeading'), t('styleToMozillaFormatHelp'));
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}
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function getSearchableInputs(cm) {
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return sections.find(s => s.cm === cm).appliesTo.map(a => a.valueEl).filter(Boolean);
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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 && getAssociatedEditor(nearbyElement) || getLastActivatedEditor();
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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 = sections[0].cm.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 && cm.display.wrapper.closest('.section');
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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 editors = getEditors();
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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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scrollToEditor(cm);
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}
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return cm;
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}
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}
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function getAssociatedEditor(nearbyElement) {
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for (let el = nearbyElement; el; el = el.parentElement) {
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// added by createSection
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if (el.CodeMirror) {
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return el.CodeMirror;
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}
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}
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}
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function getEditors() {
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return sections.filter(s => !s.isRemoved()).map(s => s.cm);
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}
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function nextEditor(cm, cycle = true) {
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if (!cycle && findLast(sections, s => !s.isRemoved()).cm === cm) {
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return;
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}
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return nextPrevEditor(cm, 1);
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}
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function prevEditor(cm, cycle = true) {
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if (!cycle && sections.find(s => !s.isRemoved()).cm === cm) {
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return;
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}
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return nextPrevEditor(cm, -1);
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}
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function findLast(arr, match) {
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for (let i = arr.length - 1; i >= 0; i--) {
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if (match(arr[i])) {
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return arr[i];
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}
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}
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}
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function nextPrevEditor(cm, direction) {
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const editors = getEditors();
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cm = editors[(editors.indexOf(cm) + direction + editors.length) % editors.length];
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scrollToEditor(cm);
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cm.focus();
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return cm;
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}
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function scrollToEditor(cm) {
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const section = sections.find(s => s.cm === cm).el;
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const bounds = section.getBoundingClientRect();
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if (
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(bounds.bottom > window.innerHeight && bounds.top > 0) ||
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(bounds.top < 0 && bounds.bottom < window.innerHeight)
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) {
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if (bounds.top < 0) {
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window.scrollBy(0, bounds.top - 1);
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} else {
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window.scrollBy(0, bounds.bottom - window.innerHeight + 1);
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}
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}
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}
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function getLastActivatedEditor() {
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let result;
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for (const section of sections) {
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if (section.isRemoved()) {
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continue;
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}
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// .lastActive is initiated by codemirror-factory
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if (!result || section.cm.lastActive > result.lastActive) {
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result = section.cm;
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}
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}
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return result;
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}
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function scrollEntirePageOnCtrlShift(event) {
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// make Shift-Ctrl-Wheel scroll entire page even when mouse is over a code editor
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if (event.shiftKey && event.ctrlKey && !event.altKey && !event.metaKey) {
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// Chrome scrolls horizontally when Shift is pressed but on some PCs this might be different
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window.scrollBy(0, event.deltaX || event.deltaY);
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event.preventDefault();
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}
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}
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function showMozillaFormat() {
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const popup = showCodeMirrorPopup(t('styleToMozillaFormatTitle'), '', {readOnly: true});
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popup.codebox.setValue(sectionsToMozFormat(getModel()));
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popup.codebox.execCommand('selectAll');
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}
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function showMozillaFormatImport(text = '') {
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const popup = showCodeMirrorPopup(t('styleFromMozillaFormatPrompt'),
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$create('.buttons', [
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$create('button', {
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name: 'import-replace',
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textContent: t('importReplaceLabel'),
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title: 'Ctrl-Shift-Enter:\n' + t('importReplaceTooltip'),
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onclick: () => doImport({replaceOldStyle: true}),
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}),
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$create('button', {
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name: 'import-append',
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textContent: t('importAppendLabel'),
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title: 'Ctrl-Enter:\n' + t('importAppendTooltip'),
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onclick: doImport,
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}),
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]));
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const contents = $('.contents', popup);
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contents.insertBefore(popup.codebox.display.wrapper, contents.firstElementChild);
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popup.codebox.focus();
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popup.codebox.on('changes', cm => {
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popup.classList.toggle('ready', !cm.isBlank());
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cm.markClean();
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});
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if (text) {
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popup.codebox.setValue(text);
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popup.codebox.clearHistory();
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popup.codebox.markClean();
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}
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// overwrite default extraKeys as those are inapplicable in popup context
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popup.codebox.options.extraKeys = {
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'Ctrl-Enter': doImport,
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'Shift-Ctrl-Enter': () => doImport({replaceOldStyle: true}),
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};
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async function doImport({replaceOldStyle = false}) {
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lockPageUI(true);
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try {
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const code = popup.codebox.getValue().trim();
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if (!/==userstyle==/i.test(code) ||
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!await getPreprocessor(code) ||
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await messageBox.confirm(
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t('importPreprocessor'), 'pre-line',
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t('importPreprocessorTitle'))
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) {
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const {sections, errors} = await API.parseCss({code});
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// shouldn't happen but just in case
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if (!sections.length || errors.length) {
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throw errors;
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}
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if (replaceOldStyle) {
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replaceSections(sections);
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} else {
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initSections(sections, {focusOn: false});
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}
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$('.dismiss').dispatchEvent(new Event('click'));
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}
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} catch (err) {
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showError(err);
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}
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lockPageUI(false);
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}
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async function getPreprocessor(code) {
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try {
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return (await API.buildUsercssMeta({sourceCode: code})).usercssData.preprocessor;
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} catch (e) {}
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}
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function lockPageUI(locked) {
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document.documentElement.style.pointerEvents = locked ? 'none' : '';
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if (popup.codebox) {
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popup.classList.toggle('ready', locked ? false : !popup.codebox.isBlank());
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popup.codebox.options.readOnly = locked;
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popup.codebox.display.wrapper.style.opacity = locked ? '.5' : '';
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}
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}
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function showError(errors) {
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messageBox({
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className: 'center danger',
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title: t('styleFromMozillaFormatError'),
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contents: $create('pre', Array.isArray(errors) ? errors.join('\n') : errors),
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buttons: [t('confirmClose')],
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});
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}
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}
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function updateSectionOrder() {
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const oldOrder = sectionOrder;
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const validSections = sections.filter(s => !s.isRemoved());
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sectionOrder = validSections.map(s => s.id).join(',');
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dirty.modify('sectionOrder', oldOrder, sectionOrder);
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container.dataset.sectionCount = validSections.length;
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linter.refreshReport();
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}
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function getModel() {
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return Object.assign({}, style, {
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sections: sections.filter(s => !s.isRemoved()).map(s => s.getModel())
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});
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}
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function validate() {
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if (!$('#name').reportValidity()) {
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messageBox.alert(t('styleMissingName'));
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return false;
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}
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for (const section of sections) {
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for (const apply of section.appliesTo) {
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if (apply.getType() !== 'regexp') {
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continue;
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}
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if (!apply.valueEl.reportValidity()) {
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messageBox.alert(t('styleBadRegexp'));
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return false;
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}
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}
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}
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return true;
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}
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function save() {
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if (!dirty.isDirty()) {
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return;
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}
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const newStyle = getModel();
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if (!validate(newStyle)) {
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return;
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}
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API.editSave(newStyle)
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.then(newStyle => {
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destroyRemovedSections();
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sessionStorage.justEditedStyleId = newStyle.id;
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replaceStyle(newStyle, false);
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});
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}
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function destroyRemovedSections() {
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for (let i = 0; i < sections.length;) {
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if (!sections[i].isRemoved()) {
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i++;
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continue;
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}
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sections[i].destroy();
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sections[i].el.remove();
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sections.splice(i, 1);
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}
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}
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function updateHeader() {
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$('#name').value = style.customName || style.name || '';
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$('#enabled').checked = style.enabled !== false;
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$('#url').href = style.url || '';
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editorBase.updateName();
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}
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function updateLivePreview() {
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debounce(_updateLivePreview, 200);
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}
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function _updateLivePreview() {
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livePreview.update(getModel());
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}
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function initSections(originalSections, {
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focusOn = 0,
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isFirstInit,
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} = {}) {
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let done;
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const total = originalSections.length;
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originalSections = originalSections.slice();
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return new Promise(resolve => {
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done = resolve;
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chunk(true);
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});
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function chunk(forceRefresh) {
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const t0 = performance.now();
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while (originalSections.length && performance.now() - t0 < 100) {
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insertSectionAfter(originalSections.shift(), undefined, forceRefresh);
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if (isFirstInit) dirty.clear();
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if (focusOn !== false && sections[focusOn]) {
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sections[focusOn].cm.focus();
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focusOn = false;
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}
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}
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setGlobalProgress(total - originalSections.length, total);
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if (!originalSections.length) {
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setGlobalProgress();
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fitToAvailableSpace();
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done();
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} else {
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setTimeout(chunk);
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}
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}
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}
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function removeSection(section) {
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if (sections.every(s => s.isRemoved() || s === section)) {
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// TODO: hide remove button when `#sections[data-section-count=1]`
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throw new Error('Cannot remove last section');
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}
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if (section.cm.isBlank()) {
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const index = sections.indexOf(section);
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sections.splice(index, 1);
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section.el.remove();
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section.remove();
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section.destroy();
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} else {
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const lines = [];
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const MAX_LINES = 10;
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section.cm.doc.iter(0, MAX_LINES + 1, ({text}) => lines.push(text) && false);
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const title = t('sectionCode') + '\n' +
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'-'.repeat(20) + '\n' +
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lines.slice(0, MAX_LINES).map(s => clipString(s, 100)).join('\n') +
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(lines.length > MAX_LINES ? '\n...' : '');
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$('.deleted-section', section.el).title = title;
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section.remove();
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}
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dirty.remove(section, section);
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updateSectionOrder();
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section.off(updateLivePreview);
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updateLivePreview();
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}
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function restoreSection(section) {
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section.restore();
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updateSectionOrder();
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section.onChange(updateLivePreview);
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updateLivePreview();
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}
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function insertSectionAfter(init, base, forceRefresh) {
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if (!init) {
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init = {code: '', urlPrefixes: ['http://example.com']};
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}
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const section = createSection({
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originalSection: init,
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genId,
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dirty,
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showMozillaFormatImport,
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removeSection,
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restoreSection,
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insertSectionAfter,
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moveSectionUp,
|
|
moveSectionDown,
|
|
prevEditor,
|
|
nextEditor
|
|
});
|
|
const {cm} = section;
|
|
sections.splice(base ? sections.indexOf(base) + 1 : sections.length, 0, section);
|
|
container.insertBefore(section.el, base ? base.el.nextSibling : null);
|
|
refreshOnView(cm, forceRefresh);
|
|
if (!base || init.code) {
|
|
// Fit a) during startup or b) when the clone button is clicked on a section with some code
|
|
fitToContent(section);
|
|
}
|
|
if (base) {
|
|
cm.focus();
|
|
setTimeout(scrollToEditor, 0, cm);
|
|
}
|
|
updateSectionOrder();
|
|
section.onChange(updateLivePreview);
|
|
updateLivePreview();
|
|
}
|
|
|
|
function moveSectionUp(section) {
|
|
const index = sections.indexOf(section);
|
|
if (index === 0) {
|
|
return;
|
|
}
|
|
container.insertBefore(section.el, sections[index - 1].el);
|
|
sections[index] = sections[index - 1];
|
|
sections[index - 1] = section;
|
|
updateSectionOrder();
|
|
}
|
|
|
|
function moveSectionDown(section) {
|
|
const index = sections.indexOf(section);
|
|
if (index === sections.length - 1) {
|
|
return;
|
|
}
|
|
container.insertBefore(sections[index + 1].el, section.el);
|
|
sections[index] = sections[index + 1];
|
|
sections[index + 1] = section;
|
|
updateSectionOrder();
|
|
}
|
|
|
|
function replaceSections(...args) {
|
|
for (const section of sections) {
|
|
section.remove(true);
|
|
}
|
|
sections.length = 0;
|
|
container.textContent = '';
|
|
return initSections(...args);
|
|
}
|
|
|
|
function replaceStyle(newStyle, codeIsUpdated) {
|
|
dirty.clear('name');
|
|
// FIXME: avoid recreating all editors?
|
|
reinit().then(() => {
|
|
Object.assign(style, newStyle);
|
|
updateHeader();
|
|
dirty.clear();
|
|
// Go from new style URL to edit style URL
|
|
if (location.href.indexOf('id=') === -1 && style.id) {
|
|
history.replaceState({}, document.title, 'edit.html?id=' + style.id);
|
|
$('#heading').textContent = t('editStyleHeading');
|
|
}
|
|
livePreview.show(Boolean(style.id));
|
|
updateLivePreview();
|
|
});
|
|
|
|
function reinit() {
|
|
if (codeIsUpdated !== false) {
|
|
return replaceSections(newStyle.sections, {isFirstInit: true});
|
|
}
|
|
return Promise.resolve();
|
|
}
|
|
}
|
|
}
|