summaryrefslogtreecommitdiffstats
path: root/toolkit/mozapps/extensions/LightweightThemeManager.jsm
diff options
context:
space:
mode:
authorMatt A. Tobin <email@mattatobin.com>2018-02-10 02:49:12 -0500
committerMatt A. Tobin <email@mattatobin.com>2018-02-10 02:49:12 -0500
commit4fb11cd5966461bccc3ed1599b808237be6b0de9 (patch)
treed7f0ccd49cebb3544d52635ff1bd6ed4d763823f /toolkit/mozapps/extensions/LightweightThemeManager.jsm
parentf164d9124708b50789dbb6959e1de96cc5697c48 (diff)
downloadUXP-4fb11cd5966461bccc3ed1599b808237be6b0de9.tar
UXP-4fb11cd5966461bccc3ed1599b808237be6b0de9.tar.gz
UXP-4fb11cd5966461bccc3ed1599b808237be6b0de9.tar.lz
UXP-4fb11cd5966461bccc3ed1599b808237be6b0de9.tar.xz
UXP-4fb11cd5966461bccc3ed1599b808237be6b0de9.zip
Move WebExtensions enabled Add-ons Manager
Diffstat (limited to 'toolkit/mozapps/extensions/LightweightThemeManager.jsm')
-rw-r--r--toolkit/mozapps/extensions/LightweightThemeManager.jsm909
1 files changed, 0 insertions, 909 deletions
diff --git a/toolkit/mozapps/extensions/LightweightThemeManager.jsm b/toolkit/mozapps/extensions/LightweightThemeManager.jsm
deleted file mode 100644
index 5dd41831d..000000000
--- a/toolkit/mozapps/extensions/LightweightThemeManager.jsm
+++ /dev/null
@@ -1,909 +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/. */
-
-"use strict";
-
-this.EXPORTED_SYMBOLS = ["LightweightThemeManager"];
-
-const Cc = Components.classes;
-const Ci = Components.interfaces;
-
-Components.utils.import("resource://gre/modules/XPCOMUtils.jsm");
-Components.utils.import("resource://gre/modules/AddonManager.jsm");
-/* globals AddonManagerPrivate*/
-Components.utils.import("resource://gre/modules/Services.jsm");
-
-const ID_SUFFIX = "@personas.mozilla.org";
-const PREF_LWTHEME_TO_SELECT = "extensions.lwThemeToSelect";
-const PREF_GENERAL_SKINS_SELECTEDSKIN = "general.skins.selectedSkin";
-const PREF_EM_DSS_ENABLED = "extensions.dss.enabled";
-const ADDON_TYPE = "theme";
-
-const URI_EXTENSION_STRINGS = "chrome://mozapps/locale/extensions/extensions.properties";
-
-const STRING_TYPE_NAME = "type.%ID%.name";
-
-const DEFAULT_MAX_USED_THEMES_COUNT = 30;
-
-const MAX_PREVIEW_SECONDS = 30;
-
-const MANDATORY = ["id", "name", "headerURL"];
-const OPTIONAL = ["footerURL", "textcolor", "accentcolor", "iconURL",
- "previewURL", "author", "description", "homepageURL",
- "updateURL", "version"];
-
-const PERSIST_ENABLED = true;
-const PERSIST_BYPASS_CACHE = false;
-const PERSIST_FILES = {
- headerURL: "lightweighttheme-header",
- footerURL: "lightweighttheme-footer"
-};
-
-XPCOMUtils.defineLazyModuleGetter(this, "LightweightThemeImageOptimizer",
- "resource://gre/modules/addons/LightweightThemeImageOptimizer.jsm");
-XPCOMUtils.defineLazyModuleGetter(this, "ServiceRequest",
- "resource://gre/modules/ServiceRequest.jsm");
-
-
-XPCOMUtils.defineLazyGetter(this, "_prefs", () => {
- return Services.prefs.getBranch("lightweightThemes.");
-});
-
-Object.defineProperty(this, "_maxUsedThemes", {
- get: function() {
- delete this._maxUsedThemes;
- try {
- this._maxUsedThemes = _prefs.getIntPref("maxUsedThemes");
- }
- catch (e) {
- this._maxUsedThemes = DEFAULT_MAX_USED_THEMES_COUNT;
- }
- return this._maxUsedThemes;
- },
-
- set: function(val) {
- delete this._maxUsedThemes;
- return this._maxUsedThemes = val;
- },
- configurable: true,
-});
-
-// Holds the ID of the theme being enabled or disabled while sending out the
-// events so cached AddonWrapper instances can return correct values for
-// permissions and pendingOperations
-var _themeIDBeingEnabled = null;
-var _themeIDBeingDisabled = null;
-
-// Convert from the old storage format (in which the order of usedThemes
-// was combined with isThemeSelected to determine which theme was selected)
-// to the new one (where a selectedThemeID determines which theme is selected).
-(function() {
- let wasThemeSelected = false;
- try {
- wasThemeSelected = _prefs.getBoolPref("isThemeSelected");
- } catch (e) { }
-
- if (wasThemeSelected) {
- _prefs.clearUserPref("isThemeSelected");
- let themes = [];
- try {
- themes = JSON.parse(_prefs.getComplexValue("usedThemes",
- Ci.nsISupportsString).data);
- } catch (e) { }
-
- if (Array.isArray(themes) && themes[0]) {
- _prefs.setCharPref("selectedThemeID", themes[0].id);
- }
- }
-})();
-
-this.LightweightThemeManager = {
- get name() {
- return "LightweightThemeManager";
- },
-
- // Themes that can be added for an application. They can't be removed, and
- // will always show up at the top of the list.
- _builtInThemes: new Map(),
-
- get usedThemes () {
- let themes = [];
- try {
- themes = JSON.parse(_prefs.getComplexValue("usedThemes",
- Ci.nsISupportsString).data);
- } catch (e) { }
-
- themes.push(...this._builtInThemes.values());
- return themes;
- },
-
- get currentTheme () {
- let selectedThemeID = null;
- try {
- selectedThemeID = _prefs.getCharPref("selectedThemeID");
- } catch (e) {}
-
- let data = null;
- if (selectedThemeID) {
- data = this.getUsedTheme(selectedThemeID);
- }
- return data;
- },
-
- get currentThemeForDisplay () {
- var data = this.currentTheme;
-
- if (data && PERSIST_ENABLED) {
- for (let key in PERSIST_FILES) {
- try {
- if (data[key] && _prefs.getBoolPref("persisted." + key))
- data[key] = _getLocalImageURI(PERSIST_FILES[key]).spec
- + "?" + data.id + ";" + _version(data);
- } catch (e) {}
- }
- }
-
- return data;
- },
-
- set currentTheme (aData) {
- return _setCurrentTheme(aData, false);
- },
-
- setLocalTheme: function(aData) {
- _setCurrentTheme(aData, true);
- },
-
- getUsedTheme: function(aId) {
- var usedThemes = this.usedThemes;
- for (let usedTheme of usedThemes) {
- if (usedTheme.id == aId)
- return usedTheme;
- }
- return null;
- },
-
- forgetUsedTheme: function(aId) {
- let theme = this.getUsedTheme(aId);
- if (!theme || LightweightThemeManager._builtInThemes.has(theme.id))
- return;
-
- let wrapper = new AddonWrapper(theme);
- AddonManagerPrivate.callAddonListeners("onUninstalling", wrapper, false);
-
- var currentTheme = this.currentTheme;
- if (currentTheme && currentTheme.id == aId) {
- this.themeChanged(null);
- AddonManagerPrivate.notifyAddonChanged(null, ADDON_TYPE, false);
- }
-
- _updateUsedThemes(_usedThemesExceptId(aId));
- AddonManagerPrivate.callAddonListeners("onUninstalled", wrapper);
- },
-
- addBuiltInTheme: function(theme) {
- if (!theme || !theme.id || this.usedThemes.some(t => t.id == theme.id)) {
- throw new Error("Trying to add invalid builtIn theme");
- }
-
- this._builtInThemes.set(theme.id, theme);
-
- if (_prefs.getCharPref("selectedThemeID") == theme.id) {
- this.currentTheme = theme;
- }
- },
-
- forgetBuiltInTheme: function(id) {
- if (!this._builtInThemes.has(id)) {
- let currentTheme = this.currentTheme;
- if (currentTheme && currentTheme.id == id) {
- this.currentTheme = null;
- }
- }
- return this._builtInThemes.delete(id);
- },
-
- clearBuiltInThemes: function() {
- for (let id of this._builtInThemes.keys()) {
- this.forgetBuiltInTheme(id);
- }
- },
-
- previewTheme: function(aData) {
- let cancel = Cc["@mozilla.org/supports-PRBool;1"].createInstance(Ci.nsISupportsPRBool);
- cancel.data = false;
- Services.obs.notifyObservers(cancel, "lightweight-theme-preview-requested",
- JSON.stringify(aData));
- if (cancel.data)
- return;
-
- if (_previewTimer)
- _previewTimer.cancel();
- else
- _previewTimer = Cc["@mozilla.org/timer;1"].createInstance(Ci.nsITimer);
- _previewTimer.initWithCallback(_previewTimerCallback,
- MAX_PREVIEW_SECONDS * 1000,
- _previewTimer.TYPE_ONE_SHOT);
-
- _notifyWindows(aData);
- },
-
- resetPreview: function() {
- if (_previewTimer) {
- _previewTimer.cancel();
- _previewTimer = null;
- _notifyWindows(this.currentThemeForDisplay);
- }
- },
-
- parseTheme: function(aString, aBaseURI) {
- try {
- return _sanitizeTheme(JSON.parse(aString), aBaseURI, false);
- } catch (e) {
- return null;
- }
- },
-
- updateCurrentTheme: function() {
- try {
- if (!_prefs.getBoolPref("update.enabled"))
- return;
- } catch (e) {
- return;
- }
-
- var theme = this.currentTheme;
- if (!theme || !theme.updateURL)
- return;
-
- var req = new ServiceRequest();
-
- req.mozBackgroundRequest = true;
- req.overrideMimeType("text/plain");
- req.open("GET", theme.updateURL, true);
- // Prevent the request from reading from the cache.
- req.channel.loadFlags |= Ci.nsIRequest.LOAD_BYPASS_CACHE;
- // Prevent the request from writing to the cache.
- req.channel.loadFlags |= Ci.nsIRequest.INHIBIT_CACHING;
-
- req.addEventListener("load", () => {
- if (req.status != 200)
- return;
-
- let newData = this.parseTheme(req.responseText, theme.updateURL);
- if (!newData ||
- newData.id != theme.id ||
- _version(newData) == _version(theme))
- return;
-
- var currentTheme = this.currentTheme;
- if (currentTheme && currentTheme.id == theme.id)
- this.currentTheme = newData;
- }, false);
-
- req.send(null);
- },
-
- /**
- * Switches to a new lightweight theme.
- *
- * @param aData
- * The lightweight theme to switch to
- */
- themeChanged: function(aData) {
- if (_previewTimer) {
- _previewTimer.cancel();
- _previewTimer = null;
- }
-
- if (aData) {
- let usedThemes = _usedThemesExceptId(aData.id);
- usedThemes.unshift(aData);
- _updateUsedThemes(usedThemes);
- if (PERSIST_ENABLED) {
- LightweightThemeImageOptimizer.purge();
- _persistImages(aData, function() {
- _notifyWindows(this.currentThemeForDisplay);
- }.bind(this));
- }
- }
-
- if (aData)
- _prefs.setCharPref("selectedThemeID", aData.id);
- else
- _prefs.setCharPref("selectedThemeID", "");
-
- _notifyWindows(aData);
- Services.obs.notifyObservers(null, "lightweight-theme-changed", null);
- },
-
- /**
- * Starts the Addons provider and enables the new lightweight theme if
- * necessary.
- */
- startup: function() {
- if (Services.prefs.prefHasUserValue(PREF_LWTHEME_TO_SELECT)) {
- let id = Services.prefs.getCharPref(PREF_LWTHEME_TO_SELECT);
- if (id)
- this.themeChanged(this.getUsedTheme(id));
- else
- this.themeChanged(null);
- Services.prefs.clearUserPref(PREF_LWTHEME_TO_SELECT);
- }
-
- _prefs.addObserver("", _prefObserver, false);
- },
-
- /**
- * Shuts down the provider.
- */
- shutdown: function() {
- _prefs.removeObserver("", _prefObserver);
- },
-
- /**
- * Called when a new add-on has been enabled when only one add-on of that type
- * can be enabled.
- *
- * @param aId
- * The ID of the newly enabled add-on
- * @param aType
- * The type of the newly enabled add-on
- * @param aPendingRestart
- * true if the newly enabled add-on will only become enabled after a
- * restart
- */
- addonChanged: function(aId, aType, aPendingRestart) {
- if (aType != ADDON_TYPE)
- return;
-
- let id = _getInternalID(aId);
- let current = this.currentTheme;
-
- try {
- let next = Services.prefs.getCharPref(PREF_LWTHEME_TO_SELECT);
- if (id == next && aPendingRestart)
- return;
-
- Services.prefs.clearUserPref(PREF_LWTHEME_TO_SELECT);
- if (next) {
- AddonManagerPrivate.callAddonListeners("onOperationCancelled",
- new AddonWrapper(this.getUsedTheme(next)));
- }
- else if (id == current.id) {
- AddonManagerPrivate.callAddonListeners("onOperationCancelled",
- new AddonWrapper(current));
- return;
- }
- }
- catch (e) {
- }
-
- if (current) {
- if (current.id == id)
- return;
- _themeIDBeingDisabled = current.id;
- let wrapper = new AddonWrapper(current);
- if (aPendingRestart) {
- Services.prefs.setCharPref(PREF_LWTHEME_TO_SELECT, "");
- AddonManagerPrivate.callAddonListeners("onDisabling", wrapper, true);
- }
- else {
- AddonManagerPrivate.callAddonListeners("onDisabling", wrapper, false);
- this.themeChanged(null);
- AddonManagerPrivate.callAddonListeners("onDisabled", wrapper);
- }
- _themeIDBeingDisabled = null;
- }
-
- if (id) {
- let theme = this.getUsedTheme(id);
- _themeIDBeingEnabled = id;
- let wrapper = new AddonWrapper(theme);
- if (aPendingRestart) {
- AddonManagerPrivate.callAddonListeners("onEnabling", wrapper, true);
- Services.prefs.setCharPref(PREF_LWTHEME_TO_SELECT, id);
-
- // Flush the preferences to disk so they survive any crash
- Services.prefs.savePrefFile(null);
- }
- else {
- AddonManagerPrivate.callAddonListeners("onEnabling", wrapper, false);
- this.themeChanged(theme);
- AddonManagerPrivate.callAddonListeners("onEnabled", wrapper);
- }
- _themeIDBeingEnabled = null;
- }
- },
-
- /**
- * Called to get an Addon with a particular ID.
- *
- * @param aId
- * The ID of the add-on to retrieve
- * @param aCallback
- * A callback to pass the Addon to
- */
- getAddonByID: function(aId, aCallback) {
- let id = _getInternalID(aId);
- if (!id) {
- aCallback(null);
- return;
- }
-
- let theme = this.getUsedTheme(id);
- if (!theme) {
- aCallback(null);
- return;
- }
-
- aCallback(new AddonWrapper(theme));
- },
-
- /**
- * Called to get Addons of a particular type.
- *
- * @param aTypes
- * An array of types to fetch. Can be null to get all types.
- * @param aCallback
- * A callback to pass an array of Addons to
- */
- getAddonsByTypes: function(aTypes, aCallback) {
- if (aTypes && aTypes.indexOf(ADDON_TYPE) == -1) {
- aCallback([]);
- return;
- }
-
- aCallback(this.usedThemes.map(a => new AddonWrapper(a)));
- },
-};
-
-const wrapperMap = new WeakMap();
-let themeFor = wrapper => wrapperMap.get(wrapper);
-
-/**
- * The AddonWrapper wraps lightweight theme to provide the data visible to
- * consumers of the AddonManager API.
- */
-function AddonWrapper(aTheme) {
- wrapperMap.set(this, aTheme);
-}
-
-AddonWrapper.prototype = {
- get id() {
- return themeFor(this).id + ID_SUFFIX;
- },
-
- get type() {
- return ADDON_TYPE;
- },
-
- get isActive() {
- let current = LightweightThemeManager.currentTheme;
- if (current)
- return themeFor(this).id == current.id;
- return false;
- },
-
- get name() {
- return themeFor(this).name;
- },
-
- get version() {
- let theme = themeFor(this);
- return "version" in theme ? theme.version : "";
- },
-
- get creator() {
- let theme = themeFor(this);
- return "author" in theme ? new AddonManagerPrivate.AddonAuthor(theme.author) : null;
- },
-
- get screenshots() {
- let url = themeFor(this).previewURL;
- return [new AddonManagerPrivate.AddonScreenshot(url)];
- },
-
- get pendingOperations() {
- let pending = AddonManager.PENDING_NONE;
- if (this.isActive == this.userDisabled)
- pending |= this.isActive ? AddonManager.PENDING_DISABLE : AddonManager.PENDING_ENABLE;
- return pending;
- },
-
- get operationsRequiringRestart() {
- // If a non-default theme is in use then a restart will be required to
- // enable lightweight themes unless dynamic theme switching is enabled
- if (Services.prefs.prefHasUserValue(PREF_GENERAL_SKINS_SELECTEDSKIN)) {
- try {
- if (Services.prefs.getBoolPref(PREF_EM_DSS_ENABLED))
- return AddonManager.OP_NEEDS_RESTART_NONE;
- }
- catch (e) {
- }
- return AddonManager.OP_NEEDS_RESTART_ENABLE;
- }
-
- return AddonManager.OP_NEEDS_RESTART_NONE;
- },
-
- get size() {
- // The size changes depending on whether the theme is in use or not, this is
- // probably not worth exposing.
- return null;
- },
-
- get permissions() {
- let permissions = 0;
-
- // Do not allow uninstall of builtIn themes.
- if (!LightweightThemeManager._builtInThemes.has(themeFor(this).id))
- permissions = AddonManager.PERM_CAN_UNINSTALL;
- if (this.userDisabled)
- permissions |= AddonManager.PERM_CAN_ENABLE;
- else
- permissions |= AddonManager.PERM_CAN_DISABLE;
- return permissions;
- },
-
- get userDisabled() {
- let id = themeFor(this).id;
- if (_themeIDBeingEnabled == id)
- return false;
- if (_themeIDBeingDisabled == id)
- return true;
-
- try {
- let toSelect = Services.prefs.getCharPref(PREF_LWTHEME_TO_SELECT);
- return id != toSelect;
- }
- catch (e) {
- let current = LightweightThemeManager.currentTheme;
- return !current || current.id != id;
- }
- },
-
- set userDisabled(val) {
- if (val == this.userDisabled)
- return val;
-
- if (val)
- LightweightThemeManager.currentTheme = null;
- else
- LightweightThemeManager.currentTheme = themeFor(this);
-
- return val;
- },
-
- // Lightweight themes are never disabled by the application
- get appDisabled() {
- return false;
- },
-
- // Lightweight themes are always compatible
- get isCompatible() {
- return true;
- },
-
- get isPlatformCompatible() {
- return true;
- },
-
- get scope() {
- return AddonManager.SCOPE_PROFILE;
- },
-
- get foreignInstall() {
- return false;
- },
-
- uninstall: function() {
- LightweightThemeManager.forgetUsedTheme(themeFor(this).id);
- },
-
- cancelUninstall: function() {
- throw new Error("Theme is not marked to be uninstalled");
- },
-
- findUpdates: function(listener, reason, appVersion, platformVersion) {
- AddonManagerPrivate.callNoUpdateListeners(this, listener, reason, appVersion, platformVersion);
- },
-
- // Lightweight themes are always compatible
- isCompatibleWith: function(appVersion, platformVersion) {
- return true;
- },
-
- // Lightweight themes are always securely updated
- get providesUpdatesSecurely() {
- return true;
- },
-
- // Lightweight themes are never blocklisted
- get blocklistState() {
- return Ci.nsIBlocklistService.STATE_NOT_BLOCKED;
- }
-};
-
-["description", "homepageURL", "iconURL"].forEach(function(prop) {
- Object.defineProperty(AddonWrapper.prototype, prop, {
- get: function() {
- let theme = themeFor(this);
- return prop in theme ? theme[prop] : null;
- },
- enumarable: true,
- });
-});
-
-["installDate", "updateDate"].forEach(function(prop) {
- Object.defineProperty(AddonWrapper.prototype, prop, {
- get: function() {
- let theme = themeFor(this);
- return prop in theme ? new Date(theme[prop]) : null;
- },
- enumarable: true,
- });
-});
-
-/**
- * Converts the ID used by the public AddonManager API to an lightweight theme
- * ID.
- *
- * @param id
- * The ID to be converted
- *
- * @return the lightweight theme ID or null if the ID was not for a lightweight
- * theme.
- */
-function _getInternalID(id) {
- if (!id)
- return null;
- let len = id.length - ID_SUFFIX.length;
- if (len > 0 && id.substring(len) == ID_SUFFIX)
- return id.substring(0, len);
- return null;
-}
-
-function _setCurrentTheme(aData, aLocal) {
- aData = _sanitizeTheme(aData, null, aLocal);
-
- let needsRestart = (ADDON_TYPE == "theme") &&
- Services.prefs.prefHasUserValue(PREF_GENERAL_SKINS_SELECTEDSKIN);
-
- let cancel = Cc["@mozilla.org/supports-PRBool;1"].createInstance(Ci.nsISupportsPRBool);
- cancel.data = false;
- Services.obs.notifyObservers(cancel, "lightweight-theme-change-requested",
- JSON.stringify(aData));
-
- if (aData) {
- let theme = LightweightThemeManager.getUsedTheme(aData.id);
- let isInstall = !theme || theme.version != aData.version;
- if (isInstall) {
- aData.updateDate = Date.now();
- if (theme && "installDate" in theme)
- aData.installDate = theme.installDate;
- else
- aData.installDate = aData.updateDate;
-
- var oldWrapper = theme ? new AddonWrapper(theme) : null;
- var wrapper = new AddonWrapper(aData);
- AddonManagerPrivate.callInstallListeners("onExternalInstall", null,
- wrapper, oldWrapper, false);
- AddonManagerPrivate.callAddonListeners("onInstalling", wrapper, false);
- }
-
- let current = LightweightThemeManager.currentTheme;
- let usedThemes = _usedThemesExceptId(aData.id);
- if (current && current.id != aData.id)
- usedThemes.splice(1, 0, aData);
- else
- usedThemes.unshift(aData);
- _updateUsedThemes(usedThemes);
-
- if (isInstall)
- AddonManagerPrivate.callAddonListeners("onInstalled", wrapper);
- }
-
- if (cancel.data)
- return null;
-
- AddonManagerPrivate.notifyAddonChanged(aData ? aData.id + ID_SUFFIX : null,
- ADDON_TYPE, needsRestart);
-
- return LightweightThemeManager.currentTheme;
-}
-
-function _sanitizeTheme(aData, aBaseURI, aLocal) {
- if (!aData || typeof aData != "object")
- return null;
-
- var resourceProtocols = ["http", "https", "resource"];
- if (aLocal)
- resourceProtocols.push("file");
- var resourceProtocolExp = new RegExp("^(" + resourceProtocols.join("|") + "):");
-
- function sanitizeProperty(prop) {
- if (!(prop in aData))
- return null;
- if (typeof aData[prop] != "string")
- return null;
- let val = aData[prop].trim();
- if (!val)
- return null;
-
- if (!/URL$/.test(prop))
- return val;
-
- try {
- val = _makeURI(val, aBaseURI ? _makeURI(aBaseURI) : null).spec;
- if ((prop == "updateURL" ? /^https:/ : resourceProtocolExp).test(val))
- return val;
- return null;
- }
- catch (e) {
- return null;
- }
- }
-
- let result = {};
- for (let mandatoryProperty of MANDATORY) {
- let val = sanitizeProperty(mandatoryProperty);
- if (!val)
- throw Components.results.NS_ERROR_INVALID_ARG;
- result[mandatoryProperty] = val;
- }
-
- for (let optionalProperty of OPTIONAL) {
- let val = sanitizeProperty(optionalProperty);
- if (!val)
- continue;
- result[optionalProperty] = val;
- }
-
- return result;
-}
-
-function _usedThemesExceptId(aId) {
- return LightweightThemeManager.usedThemes.filter(function(t) {
- return "id" in t && t.id != aId;
- });
-}
-
-function _version(aThemeData) {
- return aThemeData.version || "";
-}
-
-function _makeURI(aURL, aBaseURI) {
- return Services.io.newURI(aURL, null, aBaseURI);
-}
-
-function _updateUsedThemes(aList) {
- // Remove app-specific themes before saving them to the usedThemes pref.
- aList = aList.filter(theme => !LightweightThemeManager._builtInThemes.has(theme.id));
-
- // Send uninstall events for all themes that need to be removed.
- while (aList.length > _maxUsedThemes) {
- let wrapper = new AddonWrapper(aList[aList.length - 1]);
- AddonManagerPrivate.callAddonListeners("onUninstalling", wrapper, false);
- aList.pop();
- AddonManagerPrivate.callAddonListeners("onUninstalled", wrapper);
- }
-
- var str = Cc["@mozilla.org/supports-string;1"]
- .createInstance(Ci.nsISupportsString);
- str.data = JSON.stringify(aList);
- _prefs.setComplexValue("usedThemes", Ci.nsISupportsString, str);
-
- Services.obs.notifyObservers(null, "lightweight-theme-list-changed", null);
-}
-
-function _notifyWindows(aThemeData) {
- Services.obs.notifyObservers(null, "lightweight-theme-styling-update",
- JSON.stringify(aThemeData));
-}
-
-var _previewTimer;
-var _previewTimerCallback = {
- notify: function() {
- LightweightThemeManager.resetPreview();
- }
-};
-
-/**
- * Called when any of the lightweightThemes preferences are changed.
- */
-function _prefObserver(aSubject, aTopic, aData) {
- switch (aData) {
- case "maxUsedThemes":
- try {
- _maxUsedThemes = _prefs.getIntPref(aData);
- }
- catch (e) {
- _maxUsedThemes = DEFAULT_MAX_USED_THEMES_COUNT;
- }
- // Update the theme list to remove any themes over the number we keep
- _updateUsedThemes(LightweightThemeManager.usedThemes);
- break;
- }
-}
-
-function _persistImages(aData, aCallback) {
- function onSuccess(key) {
- return function () {
- let current = LightweightThemeManager.currentTheme;
- if (current && current.id == aData.id) {
- _prefs.setBoolPref("persisted." + key, true);
- }
- if (--numFilesToPersist == 0 && aCallback) {
- aCallback();
- }
- };
- }
-
- let numFilesToPersist = 0;
- for (let key in PERSIST_FILES) {
- _prefs.setBoolPref("persisted." + key, false);
- if (aData[key]) {
- numFilesToPersist++;
- _persistImage(aData[key], PERSIST_FILES[key], onSuccess(key));
- }
- }
-}
-
-function _getLocalImageURI(localFileName) {
- var localFile = Services.dirsvc.get("ProfD", Ci.nsIFile);
- localFile.append(localFileName);
- return Services.io.newFileURI(localFile);
-}
-
-function _persistImage(sourceURL, localFileName, successCallback) {
- if (/^(file|resource):/.test(sourceURL))
- return;
-
- var targetURI = _getLocalImageURI(localFileName);
- var sourceURI = _makeURI(sourceURL);
-
- var persist = Cc["@mozilla.org/embedding/browser/nsWebBrowserPersist;1"]
- .createInstance(Ci.nsIWebBrowserPersist);
-
- persist.persistFlags =
- Ci.nsIWebBrowserPersist.PERSIST_FLAGS_REPLACE_EXISTING_FILES |
- Ci.nsIWebBrowserPersist.PERSIST_FLAGS_AUTODETECT_APPLY_CONVERSION |
- (PERSIST_BYPASS_CACHE ?
- Ci.nsIWebBrowserPersist.PERSIST_FLAGS_BYPASS_CACHE :
- Ci.nsIWebBrowserPersist.PERSIST_FLAGS_FROM_CACHE);
-
- persist.progressListener = new _persistProgressListener(successCallback);
-
- persist.saveURI(sourceURI, null,
- null, Ci.nsIHttpChannel.REFERRER_POLICY_NO_REFERRER_WHEN_DOWNGRADE,
- null, null, targetURI, null);
-}
-
-function _persistProgressListener(successCallback) {
- this.onLocationChange = function() {};
- this.onProgressChange = function() {};
- this.onStatusChange = function() {};
- this.onSecurityChange = function() {};
- this.onStateChange = function(aWebProgress, aRequest, aStateFlags, aStatus) {
- if (aRequest &&
- aStateFlags & Ci.nsIWebProgressListener.STATE_IS_NETWORK &&
- aStateFlags & Ci.nsIWebProgressListener.STATE_STOP) {
- try {
- if (aRequest.QueryInterface(Ci.nsIHttpChannel).requestSucceeded) {
- // success
- successCallback();
- return;
- }
- } catch (e) { }
- // failure
- }
- };
-}
-
-AddonManagerPrivate.registerProvider(LightweightThemeManager, [
- new AddonManagerPrivate.AddonType("theme", URI_EXTENSION_STRINGS,
- STRING_TYPE_NAME,
- AddonManager.VIEW_TYPE_LIST, 5000)
-]);