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path: root/helpers/DATA/firefox/trisquel/abouthome/aboutHome.js
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-rw-r--r--helpers/DATA/firefox/trisquel/abouthome/aboutHome.js502
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diff --git a/helpers/DATA/firefox/trisquel/abouthome/aboutHome.js b/helpers/DATA/firefox/trisquel/abouthome/aboutHome.js
deleted file mode 100644
index d3b4aa9..0000000
--- a/helpers/DATA/firefox/trisquel/abouthome/aboutHome.js
+++ /dev/null
@@ -1,502 +0,0 @@
-/* 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," +
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- }
-};
-
-// The process of adding a new default snippet involves:
-// * add a new entity to aboutHome.dtd
-// * add a <span/> for it in aboutHome.xhtml
-// * add an entry here in the proper ordering (based on spans)
-// The <a/> 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();
- }
-}
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