3309031fd1
Whether or not an extension has errors influences the 'canChange' property, but so far we only update it for errors that occur when initializing the extension, not when an extension is enabled later. https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1249
635 lines
21 KiB
JavaScript
635 lines
21 KiB
JavaScript
// -*- mode: js; js-indent-level: 4; indent-tabs-mode: nil -*-
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/* exported init connect disconnect */
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const { GLib, Gio, GObject, Shell, St } = imports.gi;
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const Signals = imports.signals;
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const ExtensionDownloader = imports.ui.extensionDownloader;
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const ExtensionUtils = imports.misc.extensionUtils;
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const FileUtils = imports.misc.fileUtils;
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const Main = imports.ui.main;
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const MessageTray = imports.ui.messageTray;
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const { ExtensionState, ExtensionType } = ExtensionUtils;
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const ENABLED_EXTENSIONS_KEY = 'enabled-extensions';
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const DISABLED_EXTENSIONS_KEY = 'disabled-extensions';
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const DISABLE_USER_EXTENSIONS_KEY = 'disable-user-extensions';
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const EXTENSION_DISABLE_VERSION_CHECK_KEY = 'disable-extension-version-validation';
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const UPDATE_CHECK_TIMEOUT = 24 * 60 * 60; // 1 day in seconds
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var ExtensionManager = class {
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constructor() {
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this._initialized = false;
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this._enabled = false;
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this._updateNotified = false;
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this._extensions = new Map();
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this._enabledExtensions = [];
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this._extensionOrder = [];
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Main.sessionMode.connect('updated', this._sessionUpdated.bind(this));
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}
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init() {
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// The following file should exist for a period of time when extensions
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// are enabled after start. If it exists, then the systemd unit will
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// disable extensions should gnome-shell crash.
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// Should the file already exist from a previous login, then this is OK.
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let disableFilename = GLib.build_filenamev([GLib.get_user_runtime_dir(), 'gnome-shell-disable-extensions']);
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let disableFile = Gio.File.new_for_path(disableFilename);
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try {
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disableFile.create(Gio.FileCreateFlags.REPLACE_DESTINATION, null);
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} catch (e) {
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log('Failed to create file %s: %s'.format(disableFilename, e.message));
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}
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GLib.timeout_add_seconds(GLib.PRIORITY_DEFAULT, 60, () => {
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disableFile.delete(null);
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return GLib.SOURCE_REMOVE;
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});
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this._installExtensionUpdates();
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this._sessionUpdated();
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GLib.timeout_add_seconds(GLib.PRIORITY_DEFAULT, UPDATE_CHECK_TIMEOUT, () => {
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ExtensionDownloader.checkForUpdates();
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return GLib.SOURCE_CONTINUE;
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});
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ExtensionDownloader.checkForUpdates();
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}
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get updatesSupported() {
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const appSys = Shell.AppSystem.get_default();
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return appSys.lookup_app('org.gnome.Extensions.desktop') !== null;
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}
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lookup(uuid) {
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return this._extensions.get(uuid);
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}
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getUuids() {
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return [...this._extensions.keys()];
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}
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_callExtensionDisable(uuid) {
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let extension = this.lookup(uuid);
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if (!extension)
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return;
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if (extension.state != ExtensionState.ENABLED)
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return;
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// "Rebase" the extension order by disabling and then enabling extensions
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// in order to help prevent conflicts.
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// Example:
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// order = [A, B, C, D, E]
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// user disables C
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// this should: disable E, disable D, disable C, enable D, enable E
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let orderIdx = this._extensionOrder.indexOf(uuid);
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let order = this._extensionOrder.slice(orderIdx + 1);
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let orderReversed = order.slice().reverse();
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for (let i = 0; i < orderReversed.length; i++) {
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let otherUuid = orderReversed[i];
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try {
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this.lookup(otherUuid).stateObj.disable();
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} catch (e) {
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this.logExtensionError(otherUuid, e);
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}
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}
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try {
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extension.stateObj.disable();
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} catch (e) {
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this.logExtensionError(uuid, e);
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}
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if (extension.stylesheet) {
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let theme = St.ThemeContext.get_for_stage(global.stage).get_theme();
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theme.unload_stylesheet(extension.stylesheet);
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delete extension.stylesheet;
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}
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for (let i = 0; i < order.length; i++) {
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let otherUuid = order[i];
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try {
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this.lookup(otherUuid).stateObj.enable();
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} catch (e) {
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this.logExtensionError(otherUuid, e);
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}
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}
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this._extensionOrder.splice(orderIdx, 1);
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if (extension.state != ExtensionState.ERROR) {
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extension.state = ExtensionState.DISABLED;
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this.emit('extension-state-changed', extension);
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}
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}
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_callExtensionEnable(uuid) {
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if (!Main.sessionMode.allowExtensions)
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return;
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let extension = this.lookup(uuid);
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if (!extension)
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return;
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if (extension.state == ExtensionState.INITIALIZED)
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this._callExtensionInit(uuid);
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if (extension.state != ExtensionState.DISABLED)
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return;
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let stylesheetNames = ['%s.css'.format(global.session_mode), 'stylesheet.css'];
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let theme = St.ThemeContext.get_for_stage(global.stage).get_theme();
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for (let i = 0; i < stylesheetNames.length; i++) {
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try {
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let stylesheetFile = extension.dir.get_child(stylesheetNames[i]);
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theme.load_stylesheet(stylesheetFile);
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extension.stylesheet = stylesheetFile;
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break;
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} catch (e) {
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if (e.matches(Gio.IOErrorEnum, Gio.IOErrorEnum.NOT_FOUND))
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continue; // not an error
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this.logExtensionError(uuid, e);
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return;
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}
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}
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try {
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extension.stateObj.enable();
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extension.state = ExtensionState.ENABLED;
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this._extensionOrder.push(uuid);
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this.emit('extension-state-changed', extension);
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} catch (e) {
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if (extension.stylesheet) {
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theme.unload_stylesheet(extension.stylesheet);
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delete extension.stylesheet;
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}
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this.logExtensionError(uuid, e);
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}
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}
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enableExtension(uuid) {
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if (!this._extensions.has(uuid))
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return false;
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let enabledExtensions = global.settings.get_strv(ENABLED_EXTENSIONS_KEY);
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let disabledExtensions = global.settings.get_strv(DISABLED_EXTENSIONS_KEY);
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if (disabledExtensions.includes(uuid)) {
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disabledExtensions = disabledExtensions.filter(item => item !== uuid);
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global.settings.set_strv(DISABLED_EXTENSIONS_KEY, disabledExtensions);
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}
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if (!enabledExtensions.includes(uuid)) {
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enabledExtensions.push(uuid);
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global.settings.set_strv(ENABLED_EXTENSIONS_KEY, enabledExtensions);
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}
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return true;
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}
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disableExtension(uuid) {
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if (!this._extensions.has(uuid))
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return false;
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let enabledExtensions = global.settings.get_strv(ENABLED_EXTENSIONS_KEY);
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let disabledExtensions = global.settings.get_strv(DISABLED_EXTENSIONS_KEY);
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if (enabledExtensions.includes(uuid)) {
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enabledExtensions = enabledExtensions.filter(item => item !== uuid);
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global.settings.set_strv(ENABLED_EXTENSIONS_KEY, enabledExtensions);
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}
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if (!disabledExtensions.includes(uuid)) {
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disabledExtensions.push(uuid);
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global.settings.set_strv(DISABLED_EXTENSIONS_KEY, disabledExtensions);
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}
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return true;
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}
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openExtensionPrefs(uuid, parentWindow, options) {
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const extension = this.lookup(uuid);
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if (!extension || !extension.hasPrefs)
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return false;
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Gio.DBus.session.call(
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'org.gnome.Shell.Extensions',
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'/org/gnome/Shell/Extensions',
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'org.gnome.Shell.Extensions',
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'OpenExtensionPrefs',
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new GLib.Variant('(ssa{sv})', [uuid, parentWindow, options]),
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null,
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Gio.DBusCallFlags.NONE,
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-1,
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null);
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return true;
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}
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notifyExtensionUpdate(uuid) {
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let extension = this.lookup(uuid);
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if (!extension)
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return;
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extension.hasUpdate = true;
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this.emit('extension-state-changed', extension);
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if (!this._updateNotified) {
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this._updateNotified = true;
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let source = new ExtensionUpdateSource();
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Main.messageTray.add(source);
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let notification = new MessageTray.Notification(source,
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_('Extension Updates Available'),
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_('Extension updates are ready to be installed.'));
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source.showNotification(notification);
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}
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}
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logExtensionError(uuid, error) {
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let extension = this.lookup(uuid);
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if (!extension)
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return;
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let message = error.toString();
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extension.error = message;
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extension.state = ExtensionState.ERROR;
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if (!extension.errors)
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extension.errors = [];
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extension.errors.push(message);
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logError(error, 'Extension %s'.format(uuid));
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this._updateCanChange(extension);
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this.emit('extension-state-changed', extension);
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}
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createExtensionObject(uuid, dir, type) {
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let metadataFile = dir.get_child('metadata.json');
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if (!metadataFile.query_exists(null))
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throw new Error('Missing metadata.json');
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let metadataContents, success_;
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try {
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[success_, metadataContents] = metadataFile.load_contents(null);
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if (metadataContents instanceof Uint8Array)
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metadataContents = imports.byteArray.toString(metadataContents);
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} catch (e) {
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throw new Error('Failed to load metadata.json: %s'.format(e.toString()));
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}
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let meta;
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try {
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meta = JSON.parse(metadataContents);
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} catch (e) {
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throw new Error('Failed to parse metadata.json: %s'.format(e.toString()));
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}
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let requiredProperties = ['uuid', 'name', 'description', 'shell-version'];
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for (let i = 0; i < requiredProperties.length; i++) {
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let prop = requiredProperties[i];
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if (!meta[prop])
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throw new Error('missing "%s" property in metadata.json'.format(prop));
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}
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if (uuid != meta.uuid)
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throw new Error('uuid "%s" from metadata.json does not match directory name "%s"'.format(meta.uuid, uuid));
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let extension = {
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metadata: meta,
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uuid: meta.uuid,
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type,
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dir,
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path: dir.get_path(),
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error: '',
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hasPrefs: dir.get_child('prefs.js').query_exists(null),
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hasUpdate: false,
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canChange: false,
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};
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this._extensions.set(uuid, extension);
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return extension;
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}
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loadExtension(extension) {
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// Default to error, we set success as the last step
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extension.state = ExtensionState.ERROR;
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let checkVersion = !global.settings.get_boolean(EXTENSION_DISABLE_VERSION_CHECK_KEY);
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if (checkVersion && ExtensionUtils.isOutOfDate(extension)) {
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extension.state = ExtensionState.OUT_OF_DATE;
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} else {
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let enabled = this._enabledExtensions.includes(extension.uuid);
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if (enabled) {
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if (!this._callExtensionInit(extension.uuid))
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return;
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if (extension.state == ExtensionState.DISABLED)
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this._callExtensionEnable(extension.uuid);
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} else {
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extension.state = ExtensionState.INITIALIZED;
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}
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}
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this._updateCanChange(extension);
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this.emit('extension-state-changed', extension);
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}
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unloadExtension(extension) {
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// Try to disable it -- if it's ERROR'd, we can't guarantee that,
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// but it will be removed on next reboot, and hopefully nothing
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// broke too much.
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this._callExtensionDisable(extension.uuid);
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extension.state = ExtensionState.UNINSTALLED;
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this.emit('extension-state-changed', extension);
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this._extensions.delete(extension.uuid);
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return true;
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}
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reloadExtension(oldExtension) {
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// Grab the things we'll need to pass to createExtensionObject
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// to reload it.
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let { uuid, dir, type } = oldExtension;
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// Then unload the old extension.
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this.unloadExtension(oldExtension);
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// Now, recreate the extension and load it.
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let newExtension;
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try {
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newExtension = this.createExtensionObject(uuid, dir, type);
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} catch (e) {
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this.logExtensionError(uuid, e);
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return;
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}
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this.loadExtension(newExtension);
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}
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_callExtensionInit(uuid) {
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if (!Main.sessionMode.allowExtensions)
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return false;
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let extension = this.lookup(uuid);
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if (!extension)
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throw new Error("Extension was not properly created. Call createExtensionObject first");
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let dir = extension.dir;
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let extensionJs = dir.get_child('extension.js');
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if (!extensionJs.query_exists(null)) {
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this.logExtensionError(uuid, new Error('Missing extension.js'));
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return false;
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}
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let extensionModule;
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let extensionState = null;
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ExtensionUtils.installImporter(extension);
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try {
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extensionModule = extension.imports.extension;
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} catch (e) {
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this.logExtensionError(uuid, e);
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return false;
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}
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if (extensionModule.init) {
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try {
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extensionState = extensionModule.init(extension);
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} catch (e) {
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this.logExtensionError(uuid, e);
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return false;
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}
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}
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if (!extensionState)
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extensionState = extensionModule;
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extension.stateObj = extensionState;
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extension.state = ExtensionState.DISABLED;
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this.emit('extension-loaded', uuid);
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return true;
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}
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_getModeExtensions() {
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if (Array.isArray(Main.sessionMode.enabledExtensions))
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return Main.sessionMode.enabledExtensions;
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return [];
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}
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_updateCanChange(extension) {
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let hasError =
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extension.state == ExtensionState.ERROR ||
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extension.state == ExtensionState.OUT_OF_DATE;
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let isMode = this._getModeExtensions().includes(extension.uuid);
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let modeOnly = global.settings.get_boolean(DISABLE_USER_EXTENSIONS_KEY);
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let changeKey = isMode
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? DISABLE_USER_EXTENSIONS_KEY
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: ENABLED_EXTENSIONS_KEY;
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extension.canChange =
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!hasError &&
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global.settings.is_writable(changeKey) &&
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(isMode || !modeOnly);
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}
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_getEnabledExtensions() {
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let extensions = this._getModeExtensions();
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if (!global.settings.get_boolean(DISABLE_USER_EXTENSIONS_KEY))
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extensions = extensions.concat(global.settings.get_strv(ENABLED_EXTENSIONS_KEY));
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// filter out 'disabled-extensions' which takes precedence
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let disabledExtensions = global.settings.get_strv(DISABLED_EXTENSIONS_KEY);
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return extensions.filter(item => !disabledExtensions.includes(item));
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}
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_onUserExtensionsEnabledChanged() {
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this._onEnabledExtensionsChanged();
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this._onSettingsWritableChanged();
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}
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_onEnabledExtensionsChanged() {
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let newEnabledExtensions = this._getEnabledExtensions();
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// Find and enable all the newly enabled extensions: UUIDs found in the
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// new setting, but not in the old one.
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newEnabledExtensions
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.filter(uuid => !this._enabledExtensions.includes(uuid))
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.forEach(uuid => this._callExtensionEnable(uuid));
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// Find and disable all the newly disabled extensions: UUIDs found in the
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// old setting, but not in the new one.
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this._extensionOrder
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.filter(uuid => !newEnabledExtensions.includes(uuid))
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.reverse().forEach(uuid => this._callExtensionDisable(uuid));
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this._enabledExtensions = newEnabledExtensions;
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}
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_onSettingsWritableChanged() {
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for (let extension of this._extensions.values()) {
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this._updateCanChange(extension);
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this.emit('extension-state-changed', extension);
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}
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}
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_onVersionValidationChanged() {
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// Disabling extensions modifies the order array, so use a copy
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let extensionOrder = this._extensionOrder.slice();
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// Disable enabled extensions in the reverse order first to avoid
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// the "rebasing" done in _callExtensionDisable...
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extensionOrder.slice().reverse().forEach(uuid => {
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this._callExtensionDisable(uuid);
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});
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// ...and then reload and enable extensions in the correct order again.
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[...this._extensions.values()].sort((a, b) => {
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return extensionOrder.indexOf(a.uuid) - extensionOrder.indexOf(b.uuid);
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}).forEach(extension => this.reloadExtension(extension));
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}
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_installExtensionUpdates() {
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if (!this.updatesSupported)
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return;
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FileUtils.collectFromDatadirs('extension-updates', true, (dir, info) => {
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let fileType = info.get_file_type();
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if (fileType !== Gio.FileType.DIRECTORY)
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return;
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let uuid = info.get_name();
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let extensionDir = Gio.File.new_for_path(
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GLib.build_filenamev([global.userdatadir, 'extensions', uuid]));
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try {
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FileUtils.recursivelyDeleteDir(extensionDir, false);
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FileUtils.recursivelyMoveDir(dir, extensionDir);
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} catch (e) {
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log('Failed to install extension updates for %s'.format(uuid));
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} finally {
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FileUtils.recursivelyDeleteDir(dir, true);
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}
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});
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}
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_loadExtensions() {
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global.settings.connect('changed::%s'.format(ENABLED_EXTENSIONS_KEY),
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this._onEnabledExtensionsChanged.bind(this));
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global.settings.connect('changed::%s'.format(DISABLED_EXTENSIONS_KEY),
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this._onEnabledExtensionsChanged.bind(this));
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global.settings.connect('changed::%s'.format(DISABLE_USER_EXTENSIONS_KEY),
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this._onUserExtensionsEnabledChanged.bind(this));
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global.settings.connect('changed::%s'.format(EXTENSION_DISABLE_VERSION_CHECK_KEY),
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this._onVersionValidationChanged.bind(this));
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global.settings.connect('writable-changed::%s'.format(ENABLED_EXTENSIONS_KEY),
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this._onSettingsWritableChanged.bind(this));
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global.settings.connect('writable-changed::%s'.format(DISABLED_EXTENSIONS_KEY),
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this._onSettingsWritableChanged.bind(this));
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|
this._enabledExtensions = this._getEnabledExtensions();
|
|
|
|
let perUserDir = Gio.File.new_for_path(global.userdatadir);
|
|
FileUtils.collectFromDatadirs('extensions', true, (dir, info) => {
|
|
let fileType = info.get_file_type();
|
|
if (fileType != Gio.FileType.DIRECTORY)
|
|
return;
|
|
let uuid = info.get_name();
|
|
let existing = this.lookup(uuid);
|
|
if (existing) {
|
|
log('Extension %s already installed in %s. %s will not be loaded'.format(uuid, existing.path, dir.get_path()));
|
|
return;
|
|
}
|
|
|
|
let extension;
|
|
let type = dir.has_prefix(perUserDir)
|
|
? ExtensionType.PER_USER
|
|
: ExtensionType.SYSTEM;
|
|
try {
|
|
extension = this.createExtensionObject(uuid, dir, type);
|
|
} catch (e) {
|
|
logError(e, 'Could not load extension %s'.format(uuid));
|
|
return;
|
|
}
|
|
this.loadExtension(extension);
|
|
});
|
|
}
|
|
|
|
_enableAllExtensions() {
|
|
if (this._enabled)
|
|
return;
|
|
|
|
if (!this._initialized) {
|
|
this._loadExtensions();
|
|
this._initialized = true;
|
|
} else {
|
|
this._enabledExtensions.forEach(uuid => {
|
|
this._callExtensionEnable(uuid);
|
|
});
|
|
}
|
|
this._enabled = true;
|
|
}
|
|
|
|
_disableAllExtensions() {
|
|
if (!this._enabled)
|
|
return;
|
|
|
|
if (this._initialized) {
|
|
this._extensionOrder.slice().reverse().forEach(uuid => {
|
|
this._callExtensionDisable(uuid);
|
|
});
|
|
}
|
|
|
|
this._enabled = false;
|
|
}
|
|
|
|
_sessionUpdated() {
|
|
// For now sessionMode.allowExtensions controls extensions from both the
|
|
// 'enabled-extensions' preference and the sessionMode.enabledExtensions
|
|
// property; it might make sense to make enabledExtensions independent
|
|
// from allowExtensions in the future
|
|
if (Main.sessionMode.allowExtensions) {
|
|
// Take care of added or removed sessionMode extensions
|
|
this._onEnabledExtensionsChanged();
|
|
this._enableAllExtensions();
|
|
} else {
|
|
this._disableAllExtensions();
|
|
}
|
|
}
|
|
};
|
|
Signals.addSignalMethods(ExtensionManager.prototype);
|
|
|
|
const ExtensionUpdateSource = GObject.registerClass(
|
|
class ExtensionUpdateSource extends MessageTray.Source {
|
|
_init() {
|
|
let appSys = Shell.AppSystem.get_default();
|
|
this._app = appSys.lookup_app('org.gnome.Extensions.desktop');
|
|
|
|
super._init(this._app.get_name());
|
|
}
|
|
|
|
getIcon() {
|
|
return this._app.app_info.get_icon();
|
|
}
|
|
|
|
_createPolicy() {
|
|
return new MessageTray.NotificationApplicationPolicy(this._app.id);
|
|
}
|
|
|
|
open() {
|
|
this._app.activate();
|
|
Main.overview.hide();
|
|
Main.panel.closeCalendar();
|
|
}
|
|
});
|