6eef830ba4
This will allow us to provide an Alt+Tab like input source switcher. https://bugzilla.gnome.org/show_bug.cgi?id=682315
654 lines
23 KiB
JavaScript
654 lines
23 KiB
JavaScript
// -*- mode: js; js-indent-level: 4; indent-tabs-mode: nil -*-
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const Gio = imports.gi.Gio;
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const GLib = imports.gi.GLib;
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const GnomeDesktop = imports.gi.GnomeDesktop;
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const Lang = imports.lang;
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const Shell = imports.gi.Shell;
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const Signals = imports.signals;
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const St = imports.gi.St;
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try {
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var IBus = imports.gi.IBus;
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if (!('new_async' in IBus.Bus))
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throw "IBus version is too old";
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const IBusCandidatePopup = imports.ui.ibusCandidatePopup;
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} catch (e) {
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var IBus = null;
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log(e);
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}
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const Main = imports.ui.main;
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const PopupMenu = imports.ui.popupMenu;
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const PanelMenu = imports.ui.panelMenu;
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const Util = imports.misc.util;
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const DESKTOP_INPUT_SOURCES_SCHEMA = 'org.gnome.desktop.input-sources';
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const KEY_CURRENT_INPUT_SOURCE = 'current';
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const KEY_INPUT_SOURCES = 'sources';
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const INPUT_SOURCE_TYPE_XKB = 'xkb';
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const INPUT_SOURCE_TYPE_IBUS = 'ibus';
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const IBusManager = new Lang.Class({
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Name: 'IBusManager',
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_init: function(readyCallback) {
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if (!IBus)
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return;
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IBus.init();
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this._readyCallback = readyCallback;
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this._candidatePopup = new IBusCandidatePopup.CandidatePopup();
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this._ibus = null;
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this._panelService = null;
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this._engines = {};
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this._ready = false;
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this._registerPropertiesId = 0;
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this._currentEngineName = null;
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this._nameWatcherId = Gio.DBus.session.watch_name(IBus.SERVICE_IBUS,
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Gio.BusNameWatcherFlags.NONE,
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Lang.bind(this, this._onNameAppeared),
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Lang.bind(this, this._clear));
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},
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_clear: function() {
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if (this._panelService)
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this._panelService.destroy();
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if (this._ibus)
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this._ibus.destroy();
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this._ibus = null;
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this._panelService = null;
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this._candidatePopup.setPanelService(null);
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this._engines = {};
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this._ready = false;
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this._registerPropertiesId = 0;
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this._currentEngineName = null;
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if (this._readyCallback)
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this._readyCallback(false);
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},
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_onNameAppeared: function() {
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this._ibus = IBus.Bus.new_async();
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this._ibus.connect('connected', Lang.bind(this, this._onConnected));
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},
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_onConnected: function() {
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this._ibus.list_engines_async(-1, null, Lang.bind(this, this._initEngines));
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this._ibus.request_name_async(IBus.SERVICE_PANEL,
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IBus.BusNameFlag.REPLACE_EXISTING,
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-1, null,
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Lang.bind(this, this._initPanelService));
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this._ibus.connect('disconnected', Lang.bind(this, this._clear));
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},
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_initEngines: function(ibus, result) {
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let enginesList = this._ibus.list_engines_async_finish(result);
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if (enginesList) {
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for (let i = 0; i < enginesList.length; ++i) {
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let name = enginesList[i].get_name();
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this._engines[name] = enginesList[i];
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}
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this._updateReadiness();
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} else {
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this._clear();
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}
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},
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_initPanelService: function(ibus, result) {
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let success = this._ibus.request_name_async_finish(result);
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if (success) {
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this._panelService = new IBus.PanelService({ connection: this._ibus.get_connection(),
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object_path: IBus.PATH_PANEL });
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this._candidatePopup.setPanelService(this._panelService);
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// Need to set this to get 'global-engine-changed' emitions
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this._ibus.set_watch_ibus_signal(true);
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this._ibus.connect('global-engine-changed', Lang.bind(this, this._engineChanged));
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this._panelService.connect('update-property', Lang.bind(this, this._updateProperty));
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// If an engine is already active we need to get its properties
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this._ibus.get_global_engine_async(-1, null, Lang.bind(this, function(i, result) {
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let engine = this._ibus.get_global_engine_async_finish(result);
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if (!engine)
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return;
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this._engineChanged(this._ibus, engine.get_name());
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}));
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this._updateReadiness();
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} else {
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this._clear();
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}
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},
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_updateReadiness: function() {
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this._ready = (Object.keys(this._engines).length > 0 &&
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this._panelService != null);
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if (this._readyCallback)
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this._readyCallback(this._ready);
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},
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_engineChanged: function(bus, engineName) {
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this._currentEngineName = engineName;
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if (this._registerPropertiesId != 0)
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return;
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this._registerPropertiesId =
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this._panelService.connect('register-properties', Lang.bind(this, function(p, props) {
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if (!props.get(0))
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return;
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this._panelService.disconnect(this._registerPropertiesId);
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this._registerPropertiesId = 0;
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this.emit('properties-registered', this._currentEngineName, props);
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}));
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},
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_updateProperty: function(panel, prop) {
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this.emit('property-updated', this._currentEngineName, prop);
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},
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activateProperty: function(key, state) {
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this._panelService.property_activate(key, state);
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},
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getEngineDesc: function(id) {
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if (!IBus || !this._ready)
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return null;
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return this._engines[id];
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}
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});
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Signals.addSignalMethods(IBusManager.prototype);
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const LayoutMenuItem = new Lang.Class({
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Name: 'LayoutMenuItem',
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Extends: PopupMenu.PopupBaseMenuItem,
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_init: function(displayName, shortName) {
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this.parent();
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this.label = new St.Label({ text: displayName });
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this.indicator = new St.Label({ text: shortName });
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this.addActor(this.label);
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this.addActor(this.indicator);
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this.actor.label_actor = this.label;
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}
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});
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const InputSource = new Lang.Class({
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Name: 'InputSource',
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_init: function(type, id, displayName, shortName, index) {
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this.type = type;
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this.id = id;
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this.displayName = displayName;
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this._shortName = shortName;
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this.index = index;
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this._menuItem = new LayoutMenuItem(this.displayName, this._shortName);
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this._menuItem.connect('activate', Lang.bind(this, this.activate));
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this._indicatorLabel = new St.Label({ text: this._shortName });
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this.properties = null;
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},
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destroy: function() {
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this._menuItem.destroy();
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this._indicatorLabel.destroy();
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},
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get shortName() {
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return this._shortName;
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},
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set shortName(v) {
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this._shortName = v;
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this._menuItem.indicator.set_text(v);
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this._indicatorLabel.set_text(v);
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},
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get menuItem() {
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return this._menuItem;
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},
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get indicatorLabel() {
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return this._indicatorLabel;
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},
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activate: function() {
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this.emit('activate');
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},
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});
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Signals.addSignalMethods(InputSource.prototype);
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const InputSourceIndicator = new Lang.Class({
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Name: 'InputSourceIndicator',
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Extends: PanelMenu.Button,
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_init: function() {
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this.parent(0.0, _("Keyboard"));
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this._container = new Shell.GenericContainer();
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this._container.connect('get-preferred-width', Lang.bind(this, this._containerGetPreferredWidth));
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this._container.connect('get-preferred-height', Lang.bind(this, this._containerGetPreferredHeight));
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this._container.connect('allocate', Lang.bind(this, this._containerAllocate));
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this.actor.add_actor(this._container);
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this.actor.add_style_class_name('panel-status-button');
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// All valid input sources currently in the gsettings
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// KEY_INPUT_SOURCES list indexed by their index there
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this._inputSources = {};
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// All valid input sources currently in the gsettings
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// KEY_INPUT_SOURCES list of type INPUT_SOURCE_TYPE_IBUS
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// indexed by the IBus ID
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this._ibusSources = {};
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this._currentSource = null;
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// All valid input sources currently in the gsettings
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// KEY_INPUT_SOURCES list ordered by most recently used
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this._mruSources = [];
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this._settings = new Gio.Settings({ schema: DESKTOP_INPUT_SOURCES_SCHEMA });
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this._settings.connect('changed::' + KEY_CURRENT_INPUT_SOURCE, Lang.bind(this, this._currentInputSourceChanged));
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this._settings.connect('changed::' + KEY_INPUT_SOURCES, Lang.bind(this, this._inputSourcesChanged));
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this._xkbInfo = new GnomeDesktop.XkbInfo();
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this._propSeparator = new PopupMenu.PopupSeparatorMenuItem();
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this.menu.addMenuItem(this._propSeparator);
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this._propSection = new PopupMenu.PopupMenuSection();
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this.menu.addMenuItem(this._propSection);
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this._propSection.actor.hide();
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this._ibusReady = false;
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this._ibusManager = new IBusManager(Lang.bind(this, this._ibusReadyCallback));
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this._ibusManager.connect('properties-registered', Lang.bind(this, this._ibusPropertiesRegistered));
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this._ibusManager.connect('property-updated', Lang.bind(this, this._ibusPropertyUpdated));
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this._inputSourcesChanged();
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this.menu.addMenuItem(new PopupMenu.PopupSeparatorMenuItem());
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this._showLayoutItem = this.menu.addAction(_("Show Keyboard Layout"), Lang.bind(this, this._showLayout));
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Main.sessionMode.connect('updated', Lang.bind(this, this._sessionUpdated));
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this._sessionUpdated();
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this.menu.addSettingsAction(_("Region and Language Settings"), 'gnome-region-panel.desktop');
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},
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_sessionUpdated: function() {
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// re-using "allowSettings" for the keyboard layout is a bit shady,
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// but at least for now it is used as "allow popping up windows
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// from shell menus"; we can always add a separate sessionMode
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// option if need arises.
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this._showLayoutItem.actor.visible = Main.sessionMode.allowSettings;
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},
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_ibusReadyCallback: function(ready) {
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if (this._ibusReady == ready)
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return;
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this._ibusReady = ready;
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this._mruSources = [];
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this._inputSourcesChanged();
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},
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_currentInputSourceChanged: function() {
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let nVisibleSources = Object.keys(this._inputSources).length;
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let newSourceIndex = this._settings.get_uint(KEY_CURRENT_INPUT_SOURCE);
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let newSource = this._inputSources[newSourceIndex];
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if (!newSource || (nVisibleSources < 2 && !newSource.properties)) {
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// This source index might be invalid if we weren't able
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// to build a menu item for it, so we hide ourselves since
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// we can't fix it here. *shrug*
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// We also hide if we have only one visible source unless
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// it's an IBus source with properties.
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this.menu.close();
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this.actor.hide();
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return;
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}
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this.actor.show();
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let oldSource;
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[oldSource, this._currentSource] = [this._currentSource, newSource];
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if (oldSource) {
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oldSource.menuItem.setShowDot(false);
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this._container.set_skip_paint(oldSource.indicatorLabel, true);
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}
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newSource.menuItem.setShowDot(true);
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this._container.set_skip_paint(newSource.indicatorLabel, false);
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this._buildPropSection(newSource.properties);
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for (let i = 1; i < this._mruSources.length; ++i)
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if (this._mruSources[i] == newSource) {
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let currentSource = this._mruSources.splice(i, 1);
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this._mruSources = currentSource.concat(this._mruSources);
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break;
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}
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},
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_inputSourcesChanged: function() {
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let sources = this._settings.get_value(KEY_INPUT_SOURCES);
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let nSources = sources.n_children();
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for (let i in this._inputSources)
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this._inputSources[i].destroy();
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this._inputSources = {};
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this._ibusSources = {};
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let inputSourcesByShortName = {};
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for (let i = 0; i < nSources; i++) {
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let displayName;
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let shortName;
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let [type, id] = sources.get_child_value(i).deep_unpack();
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let exists = false;
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if (type == INPUT_SOURCE_TYPE_XKB) {
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[exists, displayName, shortName, , ] =
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this._xkbInfo.get_layout_info(id);
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} else if (type == INPUT_SOURCE_TYPE_IBUS) {
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let engineDesc = this._ibusManager.getEngineDesc(id);
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if (engineDesc) {
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let language = IBus.get_language_name(engineDesc.get_language());
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exists = true;
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displayName = language + ' (' + engineDesc.get_longname() + ')';
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shortName = this._makeEngineShortName(engineDesc);
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}
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}
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if (!exists)
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continue;
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let is = new InputSource(type, id, displayName, shortName, i);
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is.connect('activate', Lang.bind(this, function() {
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this._settings.set_value(KEY_CURRENT_INPUT_SOURCE,
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GLib.Variant.new_uint32(is.index));
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}));
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if (!(is.shortName in inputSourcesByShortName))
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inputSourcesByShortName[is.shortName] = [];
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inputSourcesByShortName[is.shortName].push(is);
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this._inputSources[is.index] = is;
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if (is.type == INPUT_SOURCE_TYPE_IBUS)
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this._ibusSources[is.id] = is;
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}
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let menuIndex = 0;
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for (let i in this._inputSources) {
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let is = this._inputSources[i];
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if (inputSourcesByShortName[is.shortName].length > 1) {
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let sub = inputSourcesByShortName[is.shortName].indexOf(is) + 1;
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is.shortName += String.fromCharCode(0x2080 + sub);
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}
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this.menu.addMenuItem(is.menuItem, menuIndex++);
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this._container.add_actor(is.indicatorLabel);
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this._container.set_skip_paint(is.indicatorLabel, true);
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}
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let sourcesList = [];
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for (let i in this._inputSources)
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sourcesList.push(this._inputSources[i]);
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let mruSources = [];
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for (let i = 0; i < this._mruSources.length; i++) {
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for (let j = 0; j < sourcesList.length; j++)
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if (this._mruSources[i].type == sourcesList[j].type &&
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this._mruSources[i].id == sourcesList[j].id) {
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mruSources = mruSources.concat(sourcesList.splice(j, 1));
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break;
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}
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}
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this._mruSources = mruSources.concat(sourcesList);
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this._currentInputSourceChanged();
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},
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_showLayout: function() {
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Main.overview.hide();
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let source = this._currentSource;
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let xkbLayout = '';
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let xkbVariant = '';
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if (source.type == INPUT_SOURCE_TYPE_XKB) {
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[, , , xkbLayout, xkbVariant] = this._xkbInfo.get_layout_info(source.id);
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} else if (source.type == INPUT_SOURCE_TYPE_IBUS) {
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let engineDesc = this._ibusManager.getEngineDesc(source.id);
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if (engineDesc) {
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xkbLayout = engineDesc.get_layout();
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xkbVariant = '';
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}
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}
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if (!xkbLayout || xkbLayout.length == 0)
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return;
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let description = xkbLayout;
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if (xkbVariant.length > 0)
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description = description + '\t' + xkbVariant;
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Util.spawn(['gkbd-keyboard-display', '-l', description]);
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},
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_makeEngineShortName: function(engineDesc) {
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let symbol = engineDesc.get_symbol();
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if (symbol && symbol[0])
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return symbol;
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let langCode = engineDesc.get_language().split('_', 1)[0];
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if (langCode.length == 2 || langCode.length == 3)
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return langCode.toLowerCase();
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return String.fromCharCode(0x2328); // keyboard glyph
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},
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_ibusPropertiesRegistered: function(im, engineName, props) {
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let source = this._ibusSources[engineName];
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if (!source)
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return;
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source.properties = props;
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if (source == this._currentSource)
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this._currentInputSourceChanged();
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},
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_ibusPropertyUpdated: function(im, engineName, prop) {
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let source = this._ibusSources[engineName];
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if (!source)
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return;
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if (this._updateSubProperty(source.properties, prop) &&
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source == this._currentSource)
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this._currentInputSourceChanged();
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},
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_updateSubProperty: function(props, prop) {
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if (!props)
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return false;
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let p;
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for (let i = 0; (p = props.get(i)) != null; ++i) {
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if (p.get_key() == prop.get_key() && p.get_prop_type() == prop.get_prop_type()) {
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p.update(prop);
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return true;
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} else if (p.get_prop_type() == IBus.PropType.MENU) {
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if (this._updateSubProperty(p.get_sub_props(), prop))
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return true;
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}
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}
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return false;
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},
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_buildPropSection: function(properties) {
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this._propSeparator.actor.hide();
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this._propSection.actor.hide();
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this._propSection.removeAll();
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this._buildPropSubMenu(this._propSection, properties);
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if (!this._propSection.isEmpty()) {
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this._propSection.actor.show();
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this._propSeparator.actor.show();
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}
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},
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_buildPropSubMenu: function(menu, props) {
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if (!props)
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return;
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let radioGroup = [];
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let p;
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for (let i = 0; (p = props.get(i)) != null; ++i) {
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let prop = p;
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if (!prop.get_visible())
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continue;
|
|
|
|
if (prop.get_key() == 'InputMode') {
|
|
let text;
|
|
if (prop.get_symbol)
|
|
text = prop.get_symbol().get_text();
|
|
else
|
|
text = prop.get_label().get_text();
|
|
|
|
if (text && text.length > 0 && text.length < 3)
|
|
this._currentSource.indicatorLabel.set_text(text);
|
|
}
|
|
|
|
let item;
|
|
switch (prop.get_prop_type()) {
|
|
case IBus.PropType.MENU:
|
|
item = new PopupMenu.PopupSubMenuMenuItem(prop.get_label().get_text());
|
|
this._buildPropSubMenu(item.menu, prop.get_sub_props());
|
|
break;
|
|
|
|
case IBus.PropType.RADIO:
|
|
item = new PopupMenu.PopupMenuItem(prop.get_label().get_text());
|
|
item.prop = prop;
|
|
radioGroup.push(item);
|
|
item.radioGroup = radioGroup;
|
|
item.setShowDot(prop.get_state() == IBus.PropState.CHECKED);
|
|
item.connect('activate', Lang.bind(this, function() {
|
|
if (item.prop.get_state() == IBus.PropState.CHECKED)
|
|
return;
|
|
|
|
let group = item.radioGroup;
|
|
for (let i = 0; i < group.length; ++i) {
|
|
if (group[i] == item) {
|
|
item.setShowDot(true);
|
|
item.prop.set_state(IBus.PropState.CHECKED);
|
|
this._ibusManager.activateProperty(item.prop.get_key(),
|
|
IBus.PropState.CHECKED);
|
|
} else {
|
|
group[i].setShowDot(false);
|
|
group[i].prop.set_state(IBus.PropState.UNCHECKED);
|
|
this._ibusManager.activateProperty(group[i].prop.get_key(),
|
|
IBus.PropState.UNCHECKED);
|
|
}
|
|
}
|
|
}));
|
|
break;
|
|
|
|
case IBus.PropType.TOGGLE:
|
|
item = new PopupMenu.PopupSwitchMenuItem(prop.get_label().get_text(), prop.get_state() == IBus.PropState.CHECKED);
|
|
item.prop = prop;
|
|
item.connect('toggled', Lang.bind(this, function() {
|
|
if (item.state) {
|
|
item.prop.set_state(IBus.PropState.CHECKED);
|
|
this._ibusManager.activateProperty(item.prop.get_key(),
|
|
IBus.PropState.CHECKED);
|
|
} else {
|
|
item.prop.set_state(IBus.PropState.UNCHECKED);
|
|
this._ibusManager.activateProperty(item.prop.get_key(),
|
|
IBus.PropState.UNCHECKED);
|
|
}
|
|
}));
|
|
break;
|
|
|
|
case IBus.PropType.NORMAL:
|
|
item = new PopupMenu.PopupMenuItem(prop.get_label().get_text());
|
|
item.prop = prop;
|
|
item.connect('activate', Lang.bind(this, function() {
|
|
this._ibusManager.activateProperty(item.prop.get_key(),
|
|
IBus.PropState.CHECKED);
|
|
}));
|
|
break;
|
|
|
|
case IBus.PropType.SEPARATOR:
|
|
item = new PopupMenu.PopupSeparatorMenuItem();
|
|
break;
|
|
|
|
default:
|
|
log ('IBus property %s has invalid type %d'.format(prop.get_key(), type));
|
|
continue;
|
|
}
|
|
|
|
item.setSensitive(prop.get_sensitive());
|
|
menu.addMenuItem(item);
|
|
}
|
|
},
|
|
|
|
_containerGetPreferredWidth: function(container, for_height, alloc) {
|
|
// Here, and in _containerGetPreferredHeight, we need to query
|
|
// for the height of all children, but we ignore the results
|
|
// for those we don't actually display.
|
|
let max_min_width = 0, max_natural_width = 0;
|
|
|
|
for (let i in this._inputSources) {
|
|
let is = this._inputSources[i];
|
|
let [min_width, natural_width] = is.indicatorLabel.get_preferred_width(for_height);
|
|
max_min_width = Math.max(max_min_width, min_width);
|
|
max_natural_width = Math.max(max_natural_width, natural_width);
|
|
}
|
|
|
|
alloc.min_size = max_min_width;
|
|
alloc.natural_size = max_natural_width;
|
|
},
|
|
|
|
_containerGetPreferredHeight: function(container, for_width, alloc) {
|
|
let max_min_height = 0, max_natural_height = 0;
|
|
|
|
for (let i in this._inputSources) {
|
|
let is = this._inputSources[i];
|
|
let [min_height, natural_height] = is.indicatorLabel.get_preferred_height(for_width);
|
|
max_min_height = Math.max(max_min_height, min_height);
|
|
max_natural_height = Math.max(max_natural_height, natural_height);
|
|
}
|
|
|
|
alloc.min_size = max_min_height;
|
|
alloc.natural_size = max_natural_height;
|
|
},
|
|
|
|
_containerAllocate: function(container, box, flags) {
|
|
// translate box to (0, 0)
|
|
box.x2 -= box.x1;
|
|
box.x1 = 0;
|
|
box.y2 -= box.y1;
|
|
box.y1 = 0;
|
|
|
|
for (let i in this._inputSources) {
|
|
let is = this._inputSources[i];
|
|
is.indicatorLabel.allocate_align_fill(box, 0.5, 0, false, false, flags);
|
|
}
|
|
}
|
|
});
|