From d065fe3ddaee8fff7acc9b4738df11877f8f7c42 Mon Sep 17 00:00:00 2001 From: Ruben Rodriguez Date: Thu, 11 Sep 2014 18:27:50 +0200 Subject: Release for upstream v31ESR --- helpers/DATA/firefox/gnu/abouthome/aboutHome.js | 502 ++++++++++++++++++++++++ 1 file changed, 502 insertions(+) create mode 100644 helpers/DATA/firefox/gnu/abouthome/aboutHome.js (limited to 'helpers/DATA/firefox/gnu/abouthome/aboutHome.js') diff --git a/helpers/DATA/firefox/gnu/abouthome/aboutHome.js b/helpers/DATA/firefox/gnu/abouthome/aboutHome.js new file mode 100644 index 0000000..d3b4aa9 --- /dev/null +++ b/helpers/DATA/firefox/gnu/abouthome/aboutHome.js @@ -0,0 +1,502 @@ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +const SEARCH_ENGINES = { + "Google": { + // This is the "2x" image designed for OS X retina resolution, Windows at 192dpi, etc.; + // it will be scaled down as necessary on lower-dpi displays. + image: "data:image/png;base64," + + "iVBORw0KGgoAAAANSUhEUgAAAIwAAAA4CAYAAAAvmxBdAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJ" + + "bWFnZVJlYWR5ccllPAAAGrFJREFUeNrtfHt4VdW172+utZOASLJ5+BaIFrUeXkFsa0Fl++gDnznV" + + "VlvFxt7aqvUUarXtse3Bau35ak/rZ9XT26NtfOvV6wFET+FYCQEKWqsQIT5RCAgSXnlnrzXneNw/" + + "1lphJSSQ8BB7bub3zW+LO3uN+fiNMcf4jTEX0N/6W3/rb/2tv30smtnXB3zmRi2FQakxQNKX3WkW" + + "9S/tgW3HLpmQM543A0BWVSHMYGIwOTDxzxrOf3/RQQfMZ2/SLAvKhTFVBGUqKFONH2QAzwOMF38a" + + "wHhYZAxWAqhe/iszp3+b970d/sInc57vz/J8L2eMB2MAEYkBQ6DQ3dRw4dq7AUjcP3rAfPZmLWXC" + + "LHKoIAcQAUxaB5EaEfc6AEBhjDEwmcx43/fO9HxT4vkReBIAAZgjgodW3NcPnn1sHgD/iHknn+0d" + + 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"/L23Tc8NX8mW6pL73UoOhYPH/GJv/I7Dzlqbg5pRUG1q++A//+Ng+4f9gDlATVzLHfErZiHioKrn" + + "H37uhgeG597sdYnIYeeszypQqQawre9dHNbd0Yj9/5KnfsB8DJpuXXj8Q+ryj3dUZglD1Uz3MsWv" + + "HX7uh1fv6QGHn7upAmrWQpEV2zSt+bVptamw+6C9VaP/hcoHrvkABgydUjPLywy6Oboh6HW6PgLj" + + "LYqStqYRQHKDMQflMhXOQrnata27tvGvufrEn8ZBfmdPP2AO7NpmAAw85B8qTyjKlt1svAHTjPGL" + + "k4w0jAcTAyllnBoh9Kxw/tEdS8cuT0WyH4vX1PYD5qMBzQDE2eFDxz09zsscWuwVHX6a8YwaFAiM" + + "NAkHr4vdUdf82rQN6JwnSl4N4vAxeKdxP2A+mjXuKTvcXcY9TdOnyxPk4zKZ/vbRAqe75C3QfZZY" + + "0P/y6/7299z+H4QrdGsoib8JAAAAAElFTkSuQmCC" + } +}; + +// The process of adding a new default snippet involves: +// * add a new entity to aboutHome.dtd +// * add a for it in aboutHome.xhtml +// * add an entry here in the proper ordering (based on spans) +// The part of the snippet will be linked to the corresponding url. +const DEFAULT_SNIPPETS_URLS = [ "" ]; + +const SNIPPETS_UPDATE_INTERVAL_MS = 86400000; // 1 Day. + +// IndexedDB storage constants. +const DATABASE_NAME = "abouthome"; +const DATABASE_VERSION = 1; +const SNIPPETS_OBJECTSTORE_NAME = "snippets"; + +// This global tracks if the page has been set up before, to prevent double inits +let gInitialized = false; +let gObserver = new MutationObserver(function (mutations) { + for (let mutation of mutations) { + if (mutation.attributeName == "searchEngineName") { + setupSearchEngine(); + if (!gInitialized) { +// ensureSnippetsMapThen(loadSnippets); + gInitialized = true; + } + return; + } + } +}); + +window.addEventListener("pageshow", function () { + // Delay search engine setup, cause browser.js::BrowserOnAboutPageLoad runs + // later and may use asynchronous getters. + window.gObserver.observe(document.documentElement, { attributes: true }); + fitToWidth(); + window.addEventListener("resize", fitToWidth); + + // Ask chrome to update snippets. + var event = new CustomEvent("AboutHomeLoad", {bubbles:true}); + document.dispatchEvent(event); +}); + +window.addEventListener("pagehide", function() { + window.gObserver.disconnect(); + window.removeEventListener("resize", fitToWidth); +}); + +// This object has the same interface as Map and is used to store and retrieve +// the snippets data. It is lazily initialized by ensureSnippetsMapThen(), so +// be sure its callback returned before trying to use it. +let gSnippetsMap; +let gSnippetsMapCallbacks = []; + +/** + * Ensure the snippets map is properly initialized. + * + * @param aCallback + * Invoked once the map has been initialized, gets the map as argument. + * @note Snippets should never directly manage the underlying storage, since + * it may change inadvertently. + */ +function ensureSnippetsMapThen(aCallback) +{ +return; + if (gSnippetsMap) { + aCallback(gSnippetsMap); + return; + } + + // Handle multiple requests during the async initialization. + gSnippetsMapCallbacks.push(aCallback); + if (gSnippetsMapCallbacks.length > 1) { + // We are already updating, the callbacks will be invoked when done. + return; + } + + let invokeCallbacks = function () { + if (!gSnippetsMap) { + gSnippetsMap = Object.freeze(new Map()); + } + + for (let callback of gSnippetsMapCallbacks) { + callback(gSnippetsMap); + } + gSnippetsMapCallbacks.length = 0; + } + + let openRequest = indexedDB.open(DATABASE_NAME, DATABASE_VERSION); + + openRequest.onerror = function (event) { + // Try to delete the old database so that we can start this process over + // next time. + indexedDB.deleteDatabase(DATABASE_NAME); + invokeCallbacks(); + }; + + openRequest.onupgradeneeded = function (event) { + let db = event.target.result; + if (!db.objectStoreNames.contains(SNIPPETS_OBJECTSTORE_NAME)) { + db.createObjectStore(SNIPPETS_OBJECTSTORE_NAME); + } + } + + openRequest.onsuccess = function (event) { + let db = event.target.result; + + db.onerror = function (event) { + invokeCallbacks(); + } + + db.onversionchange = function (event) { + event.target.close(); + invokeCallbacks(); + } + + let cache = new Map(); + let cursorRequest = db.transaction(SNIPPETS_OBJECTSTORE_NAME) + .objectStore(SNIPPETS_OBJECTSTORE_NAME).openCursor(); + cursorRequest.onerror = function (event) { + invokeCallbacks(); + } + + cursorRequest.onsuccess = function(event) { + let cursor = event.target.result; + + // Populate the cache from the persistent storage. + if (cursor) { + cache.set(cursor.key, cursor.value); + cursor.continue(); + return; + } + + // The cache has been filled up, create the snippets map. + gSnippetsMap = Object.freeze({ + get: function (aKey) cache.get(aKey), + set: function (aKey, aValue) { + db.transaction(SNIPPETS_OBJECTSTORE_NAME, "readwrite") + .objectStore(SNIPPETS_OBJECTSTORE_NAME).put(aValue, aKey); + return cache.set(aKey, aValue); + }, + has: function (aKey) cache.has(aKey), + delete: function (aKey) { + db.transaction(SNIPPETS_OBJECTSTORE_NAME, "readwrite") + .objectStore(SNIPPETS_OBJECTSTORE_NAME).delete(aKey); + return cache.delete(aKey); + }, + clear: function () { + db.transaction(SNIPPETS_OBJECTSTORE_NAME, "readwrite") + .objectStore(SNIPPETS_OBJECTSTORE_NAME).clear(); + return cache.clear(); + }, + get size() cache.size + }); + + setTimeout(invokeCallbacks, 0); + } + } +} + +function onSearchSubmit(aEvent) +{ + let searchTerms = document.getElementById("searchText").value; + let engineName = document.documentElement.getAttribute("searchEngineName"); + + if (engineName && searchTerms.length > 0) { + // Send an event that will perform a search and Firefox Health Report will + // record that a search from about:home has occurred. + let eventData = JSON.stringify({ + engineName: engineName, + searchTerms: searchTerms + }); + let event = new CustomEvent("AboutHomeSearchEvent", {detail: eventData}); + document.dispatchEvent(event); + } + + aEvent.preventDefault(); +} + + +function setupSearchEngine() +{ + // The "autofocus" attribute doesn't focus the form element + // immediately when the element is first drawn, so the + // attribute is also used for styling when the page first loads. + let searchText = document.getElementById("searchText"); + searchText.addEventListener("blur", function searchText_onBlur() { + searchText.removeEventListener("blur", searchText_onBlur); + searchText.removeAttribute("autofocus"); + }); + + let searchEngineName = document.documentElement.getAttribute("searchEngineName"); + let searchEngineInfo = SEARCH_ENGINES[searchEngineName]; + let logoElt = document.getElementById("searchEngineLogo"); + + // Add search engine logo. + if (searchEngineInfo && searchEngineInfo.image) { + logoElt.parentNode.hidden = false; + logoElt.src = searchEngineInfo.image; + logoElt.alt = searchEngineName; + searchText.placeholder = ""; + } + else { + logoElt.parentNode.hidden = true; + searchText.placeholder = searchEngineName; + } + +} + +/** + * Inform the test harness that we're done loading the page. + */ +function loadSucceeded() +{ + var event = new CustomEvent("AboutHomeLoadSnippetsSucceeded", {bubbles:true}); + document.dispatchEvent(event); +} + +/** + * Update the local snippets from the remote storage, then show them through + * showSnippets. + */ +function loadSnippets() +{ +return; + if (!gSnippetsMap) + throw new Error("Snippets map has not properly been initialized"); + + // Allow tests to modify the snippets map before using it. + var event = new CustomEvent("AboutHomeLoadSnippets", {bubbles:true}); + document.dispatchEvent(event); + + // Check cached snippets version. + let cachedVersion = gSnippetsMap.get("snippets-cached-version") || 0; + let currentVersion = document.documentElement.getAttribute("snippetsVersion"); + if (cachedVersion < currentVersion) { + // The cached snippets are old and unsupported, restart from scratch. + gSnippetsMap.clear(); + } + + // Check last snippets update. + let lastUpdate = gSnippetsMap.get("snippets-last-update"); + let updateURL = document.documentElement.getAttribute("snippetsURL"); + let shouldUpdate = !lastUpdate || + Date.now() - lastUpdate > SNIPPETS_UPDATE_INTERVAL_MS; + if (updateURL && shouldUpdate) { + // Try to update from network. + let xhr = new XMLHttpRequest(); + try { + xhr.open("GET", updateURL, true); + } catch (ex) { + showSnippets(); + loadSucceeded(); + return; + } + // Even if fetching should fail we don't want to spam the server, thus + // set the last update time regardless its results. Will retry tomorrow. + gSnippetsMap.set("snippets-last-update", Date.now()); + xhr.onerror = function (event) { + showSnippets(); + }; + xhr.onload = function (event) + { + if (xhr.status == 200) { + gSnippetsMap.set("snippets", xhr.responseText); + gSnippetsMap.set("snippets-cached-version", currentVersion); + } + showSnippets(); + loadSucceeded(); + }; + xhr.send(null); + } else { + showSnippets(); + loadSucceeded(); + } +} + +/** + * Shows locally cached remote snippets, or default ones when not available. + * + * @note: snippets should never invoke showSnippets(), or they may cause + * a "too much recursion" exception. + */ +let _snippetsShown = false; +function showSnippets() +{ +return; + let snippetsElt = document.getElementById("snippets"); + + // Show about:rights notification, if needed. + let showRights = document.documentElement.getAttribute("showKnowYourRights"); + if (showRights) { + let rightsElt = document.getElementById("rightsSnippet"); + let anchor = rightsElt.getElementsByTagName("a")[0]; + anchor.href = "about:rights"; + snippetsElt.appendChild(rightsElt); + rightsElt.removeAttribute("hidden"); + return; + } + + if (!gSnippetsMap) + throw new Error("Snippets map has not properly been initialized"); + if (_snippetsShown) { + // There's something wrong with the remote snippets, just in case fall back + // to the default snippets. + showDefaultSnippets(); + throw new Error("showSnippets should never be invoked multiple times"); + } + _snippetsShown = true; + + let snippets = gSnippetsMap.get("snippets"); + // If there are remotely fetched snippets, try to to show them. + if (snippets) { + // Injecting snippets can throw if they're invalid XML. + try { + snippetsElt.innerHTML = snippets; + // Scripts injected by innerHTML are inactive, so we have to relocate them + // through DOM manipulation to activate their contents. + Array.forEach(snippetsElt.getElementsByTagName("script"), function(elt) { + let relocatedScript = document.createElement("script"); + relocatedScript.type = "text/javascript;version=1.8"; + relocatedScript.text = elt.text; + elt.parentNode.replaceChild(relocatedScript, elt); + }); + return; + } catch (ex) { + // Bad content, continue to show default snippets. + } + } + + showDefaultSnippets(); +} + +/** + * Clear snippets element contents and show default snippets. + */ +function showDefaultSnippets() +{ +return; + // Clear eventual contents... + let snippetsElt = document.getElementById("snippets"); + snippetsElt.innerHTML = ""; + + // ...then show default snippets. + let defaultSnippetsElt = document.getElementById("defaultSnippets"); + let entries = defaultSnippetsElt.querySelectorAll("span"); + // Choose a random snippet. Assume there is always at least one. + let randIndex = Math.floor(Math.random() * entries.length); + let entry = entries[randIndex]; + // Inject url in the eventual link. + if (DEFAULT_SNIPPETS_URLS[randIndex]) { + let links = entry.getElementsByTagName("a"); + // Default snippets can have only one link, otherwise something is messed + // up in the translation. + if (links.length == 1) { + links[0].href = DEFAULT_SNIPPETS_URLS[randIndex]; + } + } + // Move the default snippet to the snippets element. + snippetsElt.appendChild(entry); +} + +function fitToWidth() { + if (window.scrollMaxX) { + document.body.setAttribute("narrow", "true"); + } else if (document.body.hasAttribute("narrow")) { + document.body.removeAttribute("narrow"); + fitToWidth(); + } +} -- cgit v1.2.3