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Diffstat (limited to 'webbrowser/modules/WindowsJumpLists.jsm')
| -rw-r--r-- | webbrowser/modules/WindowsJumpLists.jsm | 581 |
1 files changed, 581 insertions, 0 deletions
diff --git a/webbrowser/modules/WindowsJumpLists.jsm b/webbrowser/modules/WindowsJumpLists.jsm new file mode 100644 index 0000000..e7f7855 --- /dev/null +++ b/webbrowser/modules/WindowsJumpLists.jsm @@ -0,0 +1,581 @@ +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* 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/. */ + +Components.utils.import("resource://gre/modules/XPCOMUtils.jsm"); +Components.utils.import("resource://gre/modules/Services.jsm"); + +/** + * Constants + */ + +const Cc = Components.classes; +const Ci = Components.interfaces; + +// Stop updating jumplists after some idle time. +const IDLE_TIMEOUT_SECONDS = 5 * 60; + +// Prefs +const PREF_TASKBAR_BRANCH = "browser.taskbar.lists."; +const PREF_TASKBAR_ENABLED = "enabled"; +const PREF_TASKBAR_ITEMCOUNT = "maxListItemCount"; +const PREF_TASKBAR_FREQUENT = "frequent.enabled"; +const PREF_TASKBAR_RECENT = "recent.enabled"; +const PREF_TASKBAR_TASKS = "tasks.enabled"; +const PREF_TASKBAR_REFRESH = "refreshInSeconds"; + +// Hash keys for pendingStatements. +const LIST_TYPE = { + FREQUENT: 0 +, RECENT: 1 +} + +/** + * Exports + */ + +this.EXPORTED_SYMBOLS = [ + "WinTaskbarJumpList", +]; + +/** + * Smart getters + */ + +XPCOMUtils.defineLazyGetter(this, "_prefs", function() { + return Services.prefs.getBranch(PREF_TASKBAR_BRANCH); +}); + +XPCOMUtils.defineLazyGetter(this, "_stringBundle", function() { + return Services.strings + .createBundle("chrome://browser/locale/taskbar.properties"); +}); + +XPCOMUtils.defineLazyGetter(this, "PlacesUtils", function() { + Components.utils.import("resource://gre/modules/PlacesUtils.jsm"); + return PlacesUtils; +}); + +XPCOMUtils.defineLazyGetter(this, "NetUtil", function() { + Components.utils.import("resource://gre/modules/NetUtil.jsm"); + return NetUtil; +}); + +XPCOMUtils.defineLazyServiceGetter(this, "_idle", + "@mozilla.org/widget/idleservice;1", + "nsIIdleService"); + +XPCOMUtils.defineLazyServiceGetter(this, "_taskbarService", + "@mozilla.org/windows-taskbar;1", + "nsIWinTaskbar"); + +XPCOMUtils.defineLazyServiceGetter(this, "_winShellService", + "@mozilla.org/browser/shell-service;1", + "nsIWindowsShellService"); + +XPCOMUtils.defineLazyModuleGetter(this, "PrivateBrowsingUtils", + "resource://gre/modules/PrivateBrowsingUtils.jsm"); + +/** + * Global functions + */ + +function _getString(name) { + return _stringBundle.GetStringFromName(name); +} + +///////////////////////////////////////////////////////////////////////////// +// Task list configuration data object. + +var tasksCfg = [ + /** + * Task configuration options: title, description, args, iconIndex, open, close. + * + * title - Task title displayed in the list. (strings in the table are temp fillers.) + * description - Tooltip description on the list item. + * args - Command line args to invoke the task. + * iconIndex - Optional win icon index into the main application for the + * list item. + * open - Boolean indicates if the command should be visible after the browser opens. + * close - Boolean indicates if the command should be visible after the browser closes. + */ + // Open new tab + { + get title() _getString("taskbar.tasks.newTab.label"), + get description() _getString("taskbar.tasks.newTab.description"), + args: "-new-tab about:blank", + iconIndex: 3, // New window icon + open: true, + close: true, // The jump list already has an app launch icon, but + // we don't always update the list on shutdown. + // Thus true for consistency. + }, + + // Open new window + { + get title() _getString("taskbar.tasks.newWindow.label"), + get description() _getString("taskbar.tasks.newWindow.description"), + args: "-browser", + iconIndex: 2, // New tab icon + open: true, + close: true, // No point, but we don't always update the list on + // shutdown. Thus true for consistency. + }, + + // Open new private window + { + get title() _getString("taskbar.tasks.newPrivateWindow.label"), + get description() _getString("taskbar.tasks.newPrivateWindow.description"), + args: "-private-window", + iconIndex: 4, // Private browsing mode icon + open: true, + close: true, // No point, but we don't always update the list on + // shutdown. Thus true for consistency. + }, +]; + +///////////////////////////////////////////////////////////////////////////// +// Implementation + +this.WinTaskbarJumpList = +{ + _builder: null, + _tasks: null, + _shuttingDown: false, + + /** + * Startup, shutdown, and update + */ + + startup: function WTBJL_startup() { + // exit if this isn't win7 or higher. + if (!this._initTaskbar()) + return; + + // Win shell shortcut maintenance. If we've gone through an update, + // this will update any pinned taskbar shortcuts. Not specific to + // jump lists, but this was a convienent place to call it. + try { + // dev builds may not have helper.exe, ignore failures. + this._shortcutMaintenance(); + } catch (ex) { + } + + // Store our task list config data + this._tasks = tasksCfg; + + // retrieve taskbar related prefs. + this._refreshPrefs(); + + // observer for private browsing and our prefs branch + this._initObs(); + + // jump list refresh timer + this._updateTimer(); + }, + + update: function WTBJL_update() { + // are we disabled via prefs? don't do anything! + if (!this._enabled) + return; + + // do what we came here to do, update the taskbar jumplist + this._buildList(); + }, + + _shutdown: function WTBJL__shutdown() { + this._shuttingDown = true; + + // Correctly handle a clear history on shutdown. If there are no + // entries be sure to empty all history lists. Luckily Places caches + // this value, so it's a pretty fast call. + if (!PlacesUtils.history.hasHistoryEntries) { + this.update(); + } + + this._free(); + }, + + _shortcutMaintenance: function WTBJL__maintenace() { + _winShellService.shortcutMaintenance(); + }, + + /** + * List building + * + * @note Async builders must add their mozIStoragePendingStatement to + * _pendingStatements object, using a different LIST_TYPE entry for + * each statement. Once finished they must remove it and call + * commitBuild(). When there will be no more _pendingStatements, + * commitBuild() will commit for real. + */ + + _pendingStatements: {}, + _hasPendingStatements: function WTBJL__hasPendingStatements() { + return Object.keys(this._pendingStatements).length > 0; + }, + + _buildList: function WTBJL__buildList() { + if (this._hasPendingStatements()) { + // We were requested to update the list while another update was in + // progress, this could happen at shutdown, idle or privatebrowsing. + // Abort the current list building. + for (let listType in this._pendingStatements) { + this._pendingStatements[listType].cancel(); + delete this._pendingStatements[listType]; + } + this._builder.abortListBuild(); + } + + // anything to build? + if (!this._showFrequent && !this._showRecent && !this._showTasks) { + // don't leave the last list hanging on the taskbar. + this._deleteActiveJumpList(); + return; + } + + if (!this._startBuild()) + return; + + if (this._showTasks) + this._buildTasks(); + + // Space for frequent items takes priority over recent. + if (this._showFrequent) + this._buildFrequent(); + + if (this._showRecent) + this._buildRecent(); + + this._commitBuild(); + }, + + /** + * Taskbar api wrappers + */ + + _startBuild: function WTBJL__startBuild() { + var removedItems = Cc["@mozilla.org/array;1"]. + createInstance(Ci.nsIMutableArray); + this._builder.abortListBuild(); + if (this._builder.initListBuild(removedItems)) { + // Prior to building, delete removed items from history. + this._clearHistory(removedItems); + return true; + } + return false; + }, + + _commitBuild: function WTBJL__commitBuild() { + if (!this._hasPendingStatements() && !this._builder.commitListBuild()) { + this._builder.abortListBuild(); + } + }, + + _buildTasks: function WTBJL__buildTasks() { + var items = Cc["@mozilla.org/array;1"]. + createInstance(Ci.nsIMutableArray); + this._tasks.forEach(function (task) { + if ((this._shuttingDown && !task.close) || (!this._shuttingDown && !task.open)) + return; + var item = this._getHandlerAppItem(task.title, task.description, + task.args, task.iconIndex, null); + items.appendElement(item, false); + }, this); + + if (items.length > 0) + this._builder.addListToBuild(this._builder.JUMPLIST_CATEGORY_TASKS, items); + }, + + _buildCustom: function WTBJL__buildCustom(title, items) { + if (items.length > 0) + this._builder.addListToBuild(this._builder.JUMPLIST_CATEGORY_CUSTOMLIST, items, title); + }, + + _buildFrequent: function WTBJL__buildFrequent() { + // If history is empty, just bail out. + if (!PlacesUtils.history.hasHistoryEntries) { + return; + } + + // Windows supports default frequent and recent lists, + // but those depend on internal windows visit tracking + // which we don't populate. So we build our own custom + // frequent and recent lists using our nav history data. + + var items = Cc["@mozilla.org/array;1"]. + createInstance(Ci.nsIMutableArray); + // track frequent items so that we don't add them to + // the recent list. + this._frequentHashList = []; + + this._pendingStatements[LIST_TYPE.FREQUENT] = this._getHistoryResults( + Ci.nsINavHistoryQueryOptions.SORT_BY_VISITCOUNT_DESCENDING, + this._maxItemCount, + function (aResult) { + if (!aResult) { + delete this._pendingStatements[LIST_TYPE.FREQUENT]; + // The are no more results, build the list. + this._buildCustom(_getString("taskbar.frequent.label"), items); + this._commitBuild(); + return; + } + + let title = aResult.title || aResult.uri; + let faviconPageUri = Services.io.newURI(aResult.uri, null, null); + let shortcut = this._getHandlerAppItem(title, title, aResult.uri, 1, + faviconPageUri); + items.appendElement(shortcut, false); + this._frequentHashList.push(aResult.uri); + }, + this + ); + }, + + _buildRecent: function WTBJL__buildRecent() { + // If history is empty, just bail out. + if (!PlacesUtils.history.hasHistoryEntries) { + return; + } + + var items = Cc["@mozilla.org/array;1"]. + createInstance(Ci.nsIMutableArray); + // Frequent items will be skipped, so we select a double amount of + // entries and stop fetching results at _maxItemCount. + var count = 0; + + this._pendingStatements[LIST_TYPE.RECENT] = this._getHistoryResults( + Ci.nsINavHistoryQueryOptions.SORT_BY_DATE_DESCENDING, + this._maxItemCount * 2, + function (aResult) { + if (!aResult) { + // The are no more results, build the list. + this._buildCustom(_getString("taskbar.recent.label"), items); + delete this._pendingStatements[LIST_TYPE.RECENT]; + this._commitBuild(); + return; + } + + if (count >= this._maxItemCount) { + return; + } + + // Do not add items to recent that have already been added to frequent. + if (this._frequentHashList && + this._frequentHashList.indexOf(aResult.uri) != -1) { + return; + } + + let title = aResult.title || aResult.uri; + let faviconPageUri = Services.io.newURI(aResult.uri, null, null); + let shortcut = this._getHandlerAppItem(title, title, aResult.uri, 1, + faviconPageUri); + items.appendElement(shortcut, false); + count++; + }, + this + ); + }, + + _deleteActiveJumpList: function WTBJL__deleteAJL() { + this._builder.deleteActiveList(); + }, + + /** + * Jump list item creation helpers + */ + + _getHandlerAppItem: function WTBJL__getHandlerAppItem(name, description, + args, iconIndex, + faviconPageUri) { + var file = Services.dirsvc.get("XREExeF", Ci.nsILocalFile); + + var handlerApp = Cc["@mozilla.org/uriloader/local-handler-app;1"]. + createInstance(Ci.nsILocalHandlerApp); + handlerApp.executable = file; + // handlers default to the leaf name if a name is not specified + if (name && name.length != 0) + handlerApp.name = name; + handlerApp.detailedDescription = description; + handlerApp.appendParameter(args); + + var item = Cc["@mozilla.org/windows-jumplistshortcut;1"]. + createInstance(Ci.nsIJumpListShortcut); + item.app = handlerApp; + item.iconIndex = iconIndex; + item.faviconPageUri = faviconPageUri; + return item; + }, + + _getSeparatorItem: function WTBJL__getSeparatorItem() { + var item = Cc["@mozilla.org/windows-jumplistseparator;1"]. + createInstance(Ci.nsIJumpListSeparator); + return item; + }, + + /** + * Nav history helpers + */ + + _getHistoryResults: + function WTBLJL__getHistoryResults(aSortingMode, aLimit, aCallback, aScope) { + var options = PlacesUtils.history.getNewQueryOptions(); + options.maxResults = aLimit; + options.sortingMode = aSortingMode; + var query = PlacesUtils.history.getNewQuery(); + + // Return the pending statement to the caller, to allow cancelation. + return PlacesUtils.history.QueryInterface(Ci.nsPIPlacesDatabase) + .asyncExecuteLegacyQueries([query], 1, options, { + handleResult: function (aResultSet) { + for (let row; (row = aResultSet.getNextRow());) { + try { + aCallback.call(aScope, + { uri: row.getResultByIndex(1) + , title: row.getResultByIndex(2) + }); + } catch (e) {} + } + }, + handleError: function (aError) { + Components.utils.reportError( + "Async execution error (" + aError.result + "): " + aError.message); + }, + handleCompletion: function (aReason) { + aCallback.call(WinTaskbarJumpList, null); + }, + }); + }, + + _clearHistory: function WTBJL__clearHistory(items) { + if (!items) + return; + var URIsToRemove = []; + var e = items.enumerate(); + while (e.hasMoreElements()) { + let oldItem = e.getNext().QueryInterface(Ci.nsIJumpListShortcut); + if (oldItem) { + try { // in case we get a bad uri + let uriSpec = oldItem.app.getParameter(0); + URIsToRemove.push(NetUtil.newURI(uriSpec)); + } catch (err) { } + } + } + if (URIsToRemove.length > 0) { + PlacesUtils.bhistory.removePages(URIsToRemove, URIsToRemove.length, true); + } + }, + + /** + * Prefs utilities + */ + + _refreshPrefs: function WTBJL__refreshPrefs() { + this._enabled = _prefs.getBoolPref(PREF_TASKBAR_ENABLED); + this._showFrequent = _prefs.getBoolPref(PREF_TASKBAR_FREQUENT); + this._showRecent = _prefs.getBoolPref(PREF_TASKBAR_RECENT); + this._showTasks = _prefs.getBoolPref(PREF_TASKBAR_TASKS); + this._maxItemCount = _prefs.getIntPref(PREF_TASKBAR_ITEMCOUNT); + }, + + /** + * Init and shutdown utilities + */ + + _initTaskbar: function WTBJL__initTaskbar() { + this._builder = _taskbarService.createJumpListBuilder(); + if (!this._builder || !this._builder.available) + return false; + + return true; + }, + + _initObs: function WTBJL__initObs() { + // If the browser is closed while in private browsing mode, the "exit" + // notification is fired on quit-application-granted. + // History cleanup can happen at profile-change-teardown. + Services.obs.addObserver(this, "profile-before-change", false); + Services.obs.addObserver(this, "browser:purge-session-history", false); + _prefs.addObserver("", this, false); + }, + + _freeObs: function WTBJL__freeObs() { + Services.obs.removeObserver(this, "profile-before-change"); + Services.obs.removeObserver(this, "browser:purge-session-history"); + _prefs.removeObserver("", this); + }, + + _updateTimer: function WTBJL__updateTimer() { + if (this._enabled && !this._shuttingDown && !this._timer) { + this._timer = Cc["@mozilla.org/timer;1"].createInstance(Ci.nsITimer); + this._timer.initWithCallback(this, + _prefs.getIntPref(PREF_TASKBAR_REFRESH)*1000, + this._timer.TYPE_REPEATING_SLACK); + } + else if ((!this._enabled || this._shuttingDown) && this._timer) { + this._timer.cancel(); + delete this._timer; + } + }, + + _hasIdleObserver: false, + _updateIdleObserver: function WTBJL__updateIdleObserver() { + if (this._enabled && !this._shuttingDown && !this._hasIdleObserver) { + _idle.addIdleObserver(this, IDLE_TIMEOUT_SECONDS); + this._hasIdleObserver = true; + } + else if ((!this._enabled || this._shuttingDown) && this._hasIdleObserver) { + _idle.removeIdleObserver(this, IDLE_TIMEOUT_SECONDS); + this._hasIdleObserver = false; + } + }, + + _free: function WTBJL__free() { + this._freeObs(); + this._updateTimer(); + this._updateIdleObserver(); + delete this._builder; + }, + + /** + * Notification handlers + */ + + notify: function WTBJL_notify(aTimer) { + // Add idle observer on the first notification so it doesn't hit startup. + this._updateIdleObserver(); + this.update(); + }, + + observe: function WTBJL_observe(aSubject, aTopic, aData) { + switch (aTopic) { + case "nsPref:changed": + if (this._enabled == true && !_prefs.getBoolPref(PREF_TASKBAR_ENABLED)) + this._deleteActiveJumpList(); + this._refreshPrefs(); + this._updateTimer(); + this._updateIdleObserver(); + this.update(); + break; + + case "profile-before-change": + this._shutdown(); + break; + + case "browser:purge-session-history": + this.update(); + break; + case "idle": + if (this._timer) { + this._timer.cancel(); + delete this._timer; + } + break; + + case "back": + this._updateTimer(); + break; + } + }, +}; |