116 lines
3.6 KiB
JavaScript
116 lines
3.6 KiB
JavaScript
/* globals getStyles, saveStyle, prefs */
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'use strict';
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var update = {
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fetch: (resource, callback) => {
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let req = new XMLHttpRequest();
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let [url, data] = resource.split('?');
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req.open('POST', url, true);
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req.setRequestHeader('Content-type', 'application/x-www-form-urlencoded');
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req.onload = () => callback(req.responseText);
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req.onerror = req.ontimeout = () => callback();
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req.send(data);
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},
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md5Check: (style, callback, skipped) => {
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let req = new XMLHttpRequest();
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req.open('GET', style.md5Url, true);
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req.onload = () => {
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let md5 = req.responseText;
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if (md5 && md5 !== style.originalMd5) {
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callback(style);
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}
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else {
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skipped(`"${style.name}" style is up-to-date`);
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}
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};
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req.onerror = req.ontimeout = () => skipped('Error validating MD5 checksum');
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req.send();
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},
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list: (callback) => {
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getStyles({}, (styles) => callback(styles.filter(style => style.updateUrl)));
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},
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perform: (observe = function () {}) => {
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// from install.js
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function arraysAreEqual (a, b) {
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// treat empty array and undefined as equivalent
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if (typeof a === 'undefined') {
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return (typeof b === 'undefined') || (b.length === 0);
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}
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if (typeof b === 'undefined') {
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return (typeof a === 'undefined') || (a.length === 0);
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}
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if (a.length !== b.length) {
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return false;
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}
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return a.every(function (entry) {
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return b.indexOf(entry) !== -1;
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});
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}
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// from install.js
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function sectionsAreEqual(a, b) {
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if (a.code !== b.code) {
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return false;
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}
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return ['urls', 'urlPrefixes', 'domains', 'regexps'].every(function (attribute) {
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return arraysAreEqual(a[attribute], b[attribute]);
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});
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}
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update.list(styles => {
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observe('count', styles.length);
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styles.forEach(style => update.md5Check(style, style => update.fetch(style.updateUrl, response => {
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if (response) {
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let json = JSON.parse(response);
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if (json.sections.length === style.sections.length) {
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if (json.sections.every((section) => {
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return style.sections.some(installedSection => sectionsAreEqual(section, installedSection));
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})) {
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return observe('single-skipped', '2'); // everything is the same
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}
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json.method = 'saveStyle';
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json.id = style.id;
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saveStyle(json).then(style => {
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observe('single-updated', style.name);
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});
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}
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else {
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return observe('single-skipped', '3'); // style sections mismatch
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}
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}
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}), () => observe('single-skipped', '1')));
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});
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}
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};
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// automatically update all user-styles if "updateInterval" pref is set
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window.setTimeout(function () {
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let id;
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function run () {
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update.perform(/*(cmd, value) => console.log(cmd, value)*/);
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reset();
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}
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function reset () {
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window.clearTimeout(id);
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let interval = prefs.get('updateInterval');
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// if interval === 0 => automatic update is disabled
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if (interval) {
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/* console.log('next update', interval); */
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id = window.setTimeout(run, interval * 60 * 60 * 1000);
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}
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}
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if (prefs.get('updateInterval')) {
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run();
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}
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chrome.runtime.onMessage.addListener(request => {
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// when user has changed the predefined time interval in the settings page
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if (request.method === 'prefChanged' && request.prefName === 'updateInterval') {
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reset();
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}
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// when user just manually checked for updates
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if (request.method === 'resetInterval') {
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reset();
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}
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});
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}, 10000);
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