358 lines
11 KiB
JavaScript
358 lines
11 KiB
JavaScript
/* global
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$
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$$
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$create
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animateElement
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API
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bulkChangeQueue
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CHROME
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chromeSync
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deepEqual
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messageBox
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onDOMready
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prefs
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scrollElementIntoView
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styleJSONseemsValid
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styleSectionsEqual
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t
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tryJSONparse
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*/
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'use strict';
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const STYLISH_DUMP_FILE_EXT = '.txt';
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const STYLUS_BACKUP_FILE_EXT = '.json';
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onDOMready().then(() => {
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$('#file-all-styles').onclick = () => exportToFile();
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$('#unfile-all-styles').onclick = () => importFromFile({fileTypeFilter: STYLUS_BACKUP_FILE_EXT});
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Object.assign(document.body, {
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ondragover(event) {
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const hasFiles = event.dataTransfer.types.includes('Files');
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event.dataTransfer.dropEffect = hasFiles || event.target.type === 'search' ? 'copy' : 'none';
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this.classList.toggle('dropzone', hasFiles);
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if (hasFiles) {
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event.preventDefault();
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clearTimeout(this.fadeoutTimer);
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this.classList.remove('fadeout');
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}
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},
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ondragend() {
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animateElement(this, 'fadeout', 'dropzone');
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},
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ondragleave(event) {
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try {
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// in Firefox event.target could be XUL browser and hence there is no permission to access it
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if (event.target === this) {
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this.ondragend();
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}
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} catch (e) {
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this.ondragend();
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}
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},
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ondrop(event) {
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if (event.dataTransfer.files.length) {
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event.preventDefault();
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if ($('#only-updates input').checked) {
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$('#only-updates input').click();
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}
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importFromFile({file: event.dataTransfer.files[0]});
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}
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/* Run import first for a while, then run fadeout which is very CPU-intensive in Chrome */
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setTimeout(() => this.ondragend(), 250);
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},
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});
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});
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function importFromFile({fileTypeFilter, file} = {}) {
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return new Promise(resolve => {
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const fileInput = document.createElement('input');
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if (file) {
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readFile();
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return;
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}
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fileInput.style.display = 'none';
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fileInput.type = 'file';
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fileInput.accept = fileTypeFilter || STYLISH_DUMP_FILE_EXT;
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fileInput.acceptCharset = 'utf-8';
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document.body.appendChild(fileInput);
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fileInput.initialValue = fileInput.value;
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fileInput.onchange = readFile;
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fileInput.click();
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function readFile() {
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if (file || fileInput.value !== fileInput.initialValue) {
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file = file || fileInput.files[0];
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if (file.size > 100e6) {
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messageBox.alert("100MB backup? I don't believe you.");
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resolve();
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return;
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}
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const fReader = new FileReader();
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fReader.onloadend = event => {
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fileInput.remove();
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const text = event.target.result;
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const maybeUsercss = !/^\s*\[/.test(text) && /==UserStyle==/i.test(text);
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if (maybeUsercss) {
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messageBox.alert(t('dragDropUsercssTabstrip'));
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} else {
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importFromString(text).then(resolve);
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}
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};
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fReader.readAsText(file, 'utf-8');
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}
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}
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});
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}
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async function importFromString(jsonString) {
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const json = tryJSONparse(jsonString);
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const oldStyles = Array.isArray(json) && json.length ? await API.getAllStyles() : [];
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const oldStylesById = new Map(oldStyles.map(style => [style.id, style]));
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const oldStylesByName = new Map(oldStyles.map(style => [style.name.trim(), style]));
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const items = [];
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const infos = [];
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const stats = {
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options: {names: [], isOptions: true, legend: 'optionsHeading'},
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added: {names: [], ids: [], legend: 'importReportLegendAdded', dirty: true},
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unchanged: {names: [], ids: [], legend: 'importReportLegendIdentical'},
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metaAndCode: {names: [], ids: [], legend: 'importReportLegendUpdatedBoth', dirty: true},
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metaOnly: {names: [], ids: [], legend: 'importReportLegendUpdatedMeta', dirty: true},
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codeOnly: {names: [], ids: [], legend: 'importReportLegendUpdatedCode', dirty: true},
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invalid: {names: [], legend: 'importReportLegendInvalid'},
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};
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await Promise.all(json.map(analyze));
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bulkChangeQueue.length = 0;
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bulkChangeQueue.time = performance.now();
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(await API.importManyStyles(items))
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.forEach((style, i) => updateStats(style, infos[i]));
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return done();
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function analyze(item, index) {
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if (item && !item.id && item[prefs.STORAGE_KEY]) {
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return analyzeStorage(item);
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}
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if (typeof item !== 'object' || !styleJSONseemsValid(item)) {
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stats.invalid.names.push(`#${index}: ${limitString(item && item.name || '')}`);
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return;
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}
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item.name = item.name.trim();
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const byId = oldStylesById.get(item.id);
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const byName = oldStylesByName.get(item.name);
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oldStylesByName.delete(item.name);
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let oldStyle;
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if (byId) {
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if (sameStyle(byId, item)) {
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oldStyle = byId;
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} else {
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delete item.id;
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}
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}
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if (!oldStyle && byName) {
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item.id = byName.id;
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oldStyle = byName;
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}
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const metaEqual = oldStyle && deepEqual(oldStyle, item, ['sections', '_rev']);
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const codeEqual = oldStyle && styleSectionsEqual(oldStyle, item);
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if (metaEqual && codeEqual) {
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stats.unchanged.names.push(oldStyle.name);
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stats.unchanged.ids.push(oldStyle.id);
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} else {
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items.push(item);
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infos.push({oldStyle, metaEqual, codeEqual});
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}
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}
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async function analyzeStorage(storage) {
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analyzePrefs(storage[prefs.STORAGE_KEY], Object.keys(prefs.defaults), prefs.values, true);
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delete storage[prefs.STORAGE_KEY];
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if (Object.keys(storage).length) {
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analyzePrefs(storage, Object.values(chromeSync.LZ_KEY), await chromeSync.getLZValues());
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}
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}
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function analyzePrefs(obj, validKeys, values, isPref) {
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for (const [key, val] of Object.entries(obj || {})) {
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const isValid = validKeys.includes(key);
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if (!isValid || !deepEqual(val, values[key])) {
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stats.options.names.push({name: key, val, isValid, isPref});
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}
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}
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}
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function sameStyle(oldStyle, newStyle) {
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return oldStyle.name.trim() === newStyle.name.trim() ||
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['updateUrl', 'originalMd5', 'originalDigest']
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.some(field => oldStyle[field] && oldStyle[field] === newStyle[field]);
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}
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function updateStats(style, {oldStyle, metaEqual, codeEqual}) {
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if (!oldStyle) {
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stats.added.names.push(style.name);
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stats.added.ids.push(style.id);
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return;
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}
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if (!metaEqual && !codeEqual) {
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stats.metaAndCode.names.push(reportNameChange(oldStyle, style));
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stats.metaAndCode.ids.push(style.id);
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return;
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}
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if (!codeEqual) {
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stats.codeOnly.names.push(style.name);
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stats.codeOnly.ids.push(style.id);
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return;
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}
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stats.metaOnly.names.push(reportNameChange(oldStyle, style));
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stats.metaOnly.ids.push(style.id);
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}
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function done() {
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scrollTo(0, 0);
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const entries = Object.entries(stats);
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const numChanged = entries.reduce((sum, [, val]) =>
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sum + (val.dirty ? val.names.length : 0), 0);
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const report = entries.map(renderStats).filter(Boolean);
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messageBox({
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title: t('importReportTitle'),
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contents: $create('#import', report.length ? report : t('importReportUnchanged')),
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buttons: [t('confirmClose'), numChanged && t('undo')],
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onshow: bindClick,
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})
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.then(({button}) => {
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if (button === 1) {
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undo();
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}
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});
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}
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function renderStats([id, {ids, names, legend, isOptions}]) {
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return names.length &&
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$create('details', {dataset: {id}, open: isOptions}, [
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$create('summary',
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$create('b', (isOptions ? '' : names.length + ' ') + t(legend))),
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$create('small',
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names.map(ids ? listItemsWithId : isOptions ? listOptions : listItems, ids)),
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isOptions && names.some(_ => _.isValid) &&
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$create('button', {onclick: importOptions}, t('importLabel')),
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]);
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}
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function listOptions({name, isValid}) {
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return $create(isValid ? 'div' : 'del',
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name + (isValid ? '' : ` (${t(stats.invalid.legend)})`));
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}
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function listItems(name) {
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return $create('div', name);
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}
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/** @this stats.<item>.ids */
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function listItemsWithId(name, i) {
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return $create('div', {dataset: {id: this[i]}}, name);
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}
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async function importOptions() {
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// Must acquire the permission before setting the pref
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if (CHROME && !chrome.declarativeContent &&
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stats.options.names.find(_ => _.name === 'styleViaXhr' && _.isValid && _.val)) {
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await browser.permissions.request({permissions: ['declarativeContent']});
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}
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const oldStorage = await chromeSync.get();
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for (const {name, val, isValid, isPref} of stats.options.names) {
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if (isValid) {
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if (isPref) {
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prefs.set(name, val);
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} else {
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chromeSync.setLZValue(name, val);
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}
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}
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}
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const label = this.textContent;
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this.textContent = t('undo');
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this.onclick = async () => {
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const curKeys = Object.keys(await chromeSync.get());
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const keysToRemove = curKeys.filter(k => !oldStorage.hasOwnProperty(k));
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await chromeSync.set(oldStorage);
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await chromeSync.remove(keysToRemove);
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this.textContent = label;
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this.onclick = importOptions;
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};
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}
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function undo() {
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const newIds = [
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...stats.metaAndCode.ids,
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...stats.metaOnly.ids,
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...stats.codeOnly.ids,
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...stats.added.ids,
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];
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let tasks = Promise.resolve();
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for (const id of newIds) {
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tasks = tasks.then(() => API.deleteStyle(id));
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const oldStyle = oldStylesById.get(id);
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if (oldStyle) {
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tasks = tasks.then(() => API.importStyle(oldStyle));
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}
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}
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// taskUI is superfast and updates style list only in this page,
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// which should account for 99.99999999% of cases, supposedly
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return tasks.then(() => messageBox({
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title: t('importReportUndoneTitle'),
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contents: newIds.length + ' ' + t('importReportUndone'),
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buttons: [t('confirmClose')],
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}));
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}
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function bindClick() {
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const highlightElement = event => {
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const styleElement = $('#style-' + event.target.dataset.id);
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if (styleElement) {
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scrollElementIntoView(styleElement);
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animateElement(styleElement);
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}
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};
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for (const block of $$('#message-box details')) {
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if (block.dataset.id !== 'invalid') {
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block.style.cursor = 'pointer';
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block.onclick = highlightElement;
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}
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}
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}
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function limitString(s, limit = 100) {
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return s.length <= limit ? s : s.substr(0, limit) + '...';
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}
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function reportNameChange(oldStyle, newStyle) {
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return newStyle.name !== oldStyle.name
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? oldStyle.name + ' —> ' + newStyle.name
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: oldStyle.name;
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}
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}
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async function exportToFile() {
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const data = [
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Object.assign({
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[prefs.STORAGE_KEY]: prefs.values,
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}, await chromeSync.getLZValues()),
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...await API.getAllStyles(),
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];
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const text = JSON.stringify(data, null, ' ');
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const type = 'application/json';
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$create('a', {
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href: URL.createObjectURL(new Blob([text], {type})),
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download: generateFileName(),
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type,
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}).dispatchEvent(new MouseEvent('click'));
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function generateFileName() {
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const today = new Date();
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const dd = ('0' + today.getDate()).substr(-2);
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const mm = ('0' + (today.getMonth() + 1)).substr(-2);
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const yyyy = today.getFullYear();
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return `stylus-${yyyy}-${mm}-${dd}${STYLUS_BACKUP_FILE_EXT}`;
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}
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}
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