gnome-shell/js/ui/status/keyboard.js

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// -*- mode: js; js-indent-level: 4; indent-tabs-mode: nil -*-
const Clutter = imports.gi.Clutter;
const Gio = imports.gi.Gio;
const Lang = imports.lang;
const Meta = imports.gi.Meta;
const Shell = imports.gi.Shell;
const Signals = imports.signals;
const St = imports.gi.St;
const Gettext = imports.gettext;
const IBus = imports.misc.ibusManager.IBus;
const IBusManager = imports.misc.ibusManager;
const KeyboardManager = imports.misc.keyboardManager;
const Main = imports.ui.main;
const PopupMenu = imports.ui.popupMenu;
const PanelMenu = imports.ui.panelMenu;
const SwitcherPopup = imports.ui.switcherPopup;
const Util = imports.misc.util;
const DESKTOP_INPUT_SOURCES_SCHEMA = 'org.gnome.desktop.input-sources';
const KEY_INPUT_SOURCES = 'sources';
const KEY_KEYBOARD_OPTIONS = 'xkb-options';
const INPUT_SOURCE_TYPE_XKB = 'xkb';
const INPUT_SOURCE_TYPE_IBUS = 'ibus';
const LayoutMenuItem = new Lang.Class({
Name: 'LayoutMenuItem',
Extends: PopupMenu.PopupBaseMenuItem,
_init: function(displayName, shortName) {
this.parent();
this.label = new St.Label({ text: displayName });
this.indicator = new St.Label({ text: shortName });
this.actor.add(this.label, { expand: true });
this.actor.add(this.indicator);
this.actor.label_actor = this.label;
}
});
const InputSource = new Lang.Class({
Name: 'InputSource',
_init: function(type, id, displayName, shortName, index) {
this.type = type;
this.id = id;
this.displayName = displayName;
this._shortName = shortName;
this.index = index;
this.properties = null;
this.xkbId = this._getXkbId();
},
get shortName() {
return this._shortName;
},
set shortName(v) {
this._shortName = v;
this.emit('changed');
},
activate: function() {
this.emit('activate');
},
_getXkbId: function() {
let engineDesc = IBusManager.getIBusManager().getEngineDesc(this.id);
if (!engineDesc)
return this.id;
if (engineDesc.variant && engineDesc.variant.length > 0)
return engineDesc.layout + '+' + engineDesc.variant;
else
return engineDesc.layout;
}
});
Signals.addSignalMethods(InputSource.prototype);
const InputSourcePopup = new Lang.Class({
Name: 'InputSourcePopup',
Extends: SwitcherPopup.SwitcherPopup,
_init: function(items, action, actionBackward) {
this.parent(items);
this._action = action;
this._actionBackward = actionBackward;
this._switcherList = new InputSourceSwitcher(this._items);
},
_keyPressHandler: function(keysym, action) {
if (action == this._action)
this._select(this._next());
else if (action == this._actionBackward)
this._select(this._previous());
else if (keysym == Clutter.Left)
this._select(this._previous());
else if (keysym == Clutter.Right)
this._select(this._next());
else
return Clutter.EVENT_PROPAGATE;
return Clutter.EVENT_STOP;
},
_finish : function() {
this.parent();
this._items[this._selectedIndex].activate();
},
});
const InputSourceSwitcher = new Lang.Class({
Name: 'InputSourceSwitcher',
Extends: SwitcherPopup.SwitcherList,
_init: function(items) {
this.parent(true);
for (let i = 0; i < items.length; i++)
this._addIcon(items[i]);
},
_addIcon: function(item) {
let box = new St.BoxLayout({ vertical: true });
let bin = new St.Bin({ style_class: 'input-source-switcher-symbol' });
let symbol = new St.Label({ text: item.shortName });
bin.set_child(symbol);
box.add(bin, { x_fill: false, y_fill: false } );
let text = new St.Label({ text: item.displayName });
box.add(text, { x_fill: false });
this.addItem(box, text);
}
});
const InputSourceManager = new Lang.Class({
Name: 'InputSourceManager',
_init: function() {
// All valid input sources currently in the gsettings
// KEY_INPUT_SOURCES list indexed by their index there
this._inputSources = {};
// All valid input sources currently in the gsettings
// KEY_INPUT_SOURCES list of type INPUT_SOURCE_TYPE_IBUS
// indexed by the IBus ID
this._ibusSources = {};
this._currentSource = null;
this._backupSource = null;
// All valid input sources currently in the gsettings
// KEY_INPUT_SOURCES list ordered by most recently used
this._mruSources = [];
this._keybindingAction =
Main.wm.addKeybinding('switch-input-source',
new Gio.Settings({ schema_id: "org.gnome.desktop.wm.keybindings" }),
Meta.KeyBindingFlags.NONE,
Shell.ActionMode.ALL,
Lang.bind(this, this._switchInputSource));
this._keybindingActionBackward =
Main.wm.addKeybinding('switch-input-source-backward',
new Gio.Settings({ schema_id: "org.gnome.desktop.wm.keybindings" }),
Meta.KeyBindingFlags.IS_REVERSED,
Shell.ActionMode.ALL,
Lang.bind(this, this._switchInputSource));
this._settings = new Gio.Settings({ schema_id: DESKTOP_INPUT_SOURCES_SCHEMA });
this._settings.connect('changed::' + KEY_INPUT_SOURCES, Lang.bind(this, this._inputSourcesChanged));
this._settings.connect('changed::' + KEY_KEYBOARD_OPTIONS, Lang.bind(this, this._keyboardOptionsChanged));
this._xkbInfo = KeyboardManager.getXkbInfo();
this._keyboardManager = KeyboardManager.getKeyboardManager();
this._ibusReady = false;
this._ibusManager = IBusManager.getIBusManager();
this._ibusManager.connect('ready', Lang.bind(this, this._ibusReadyCallback));
this._ibusManager.connect('properties-registered', Lang.bind(this, this._ibusPropertiesRegistered));
this._ibusManager.connect('property-updated', Lang.bind(this, this._ibusPropertyUpdated));
this._ibusManager.connect('set-content-type', Lang.bind(this, this._ibusSetContentType));
global.display.connect('modifiers-accelerator-activated', Lang.bind(this, this._modifiersSwitcher));
this._sourcesPerWindow = false;
this._focusWindowNotifyId = 0;
this._overviewShowingId = 0;
this._overviewHiddenId = 0;
this._settings.connect('changed::per-window', Lang.bind(this, this._sourcesPerWindowChanged));
this._sourcesPerWindowChanged();
this._disableIBus = false;
},
reload: function() {
this._keyboardManager.setKeyboardOptions(this._settings.get_strv(KEY_KEYBOARD_OPTIONS));
this._inputSourcesChanged();
},
_ibusReadyCallback: function(im, ready) {
if (this._ibusReady == ready)
return;
this._ibusReady = ready;
this._mruSources = [];
this._inputSourcesChanged();
},
_modifiersSwitcher: function() {
let sourceIndexes = Object.keys(this._inputSources);
if (sourceIndexes.length == 0) {
KeyboardManager.releaseKeyboard();
return true;
}
let is = this._currentSource;
if (!is)
is = this._inputSources[sourceIndexes[0]];
let nextIndex = is.index + 1;
if (nextIndex > sourceIndexes[sourceIndexes.length - 1])
nextIndex = 0;
while (!(is = this._inputSources[nextIndex]))
nextIndex += 1;
is.activate();
return true;
},
_switchInputSource: function(display, screen, window, binding) {
if (this._mruSources.length < 2)
return;
// HACK: Fall back on simple input source switching since we
// can't show a popup switcher while a GrabHelper grab is in
// effect without considerable work to consolidate the usage
// of pushModal/popModal and grabHelper. See
// https://bugzilla.gnome.org/show_bug.cgi?id=695143 .
if (Main.actionMode == Shell.ActionMode.POPUP) {
this._modifiersSwitcher();
return;
}
let popup = new InputSourcePopup(this._mruSources, this._keybindingAction, this._keybindingActionBackward);
if (!popup.show(binding.is_reversed(), binding.get_name(), binding.get_mask()))
popup.destroy();
},
_keyboardOptionsChanged: function() {
this._keyboardManager.setKeyboardOptions(this._settings.get_strv(KEY_KEYBOARD_OPTIONS));
this._keyboardManager.reapply();
},
_currentInputSourceChanged: function(newSource) {
let oldSource;
[oldSource, this._currentSource] = [this._currentSource, newSource];
this.emit('current-source-changed', oldSource);
for (let i = 1; i < this._mruSources.length; ++i)
if (this._mruSources[i] == newSource) {
let currentSource = this._mruSources.splice(i, 1);
this._mruSources = currentSource.concat(this._mruSources);
break;
}
this._changePerWindowSource();
},
_activateInputSource: function(is) {
KeyboardManager.holdKeyboard();
this._keyboardManager.apply(is.xkbId);
// All the "xkb:..." IBus engines simply "echo" back symbols,
// despite their naming implying differently, so we always set
// one in order for XIM applications to work given that we set
// XMODIFIERS=@im=ibus in the first place so that they can
// work without restarting when/if the user adds an IBus input
// source.
let engine;
if (is.type == INPUT_SOURCE_TYPE_IBUS)
engine = is.id;
else
engine = 'xkb:us::eng';
this._ibusManager.setEngine(engine, KeyboardManager.releaseKeyboard);
this._currentInputSourceChanged(is);
},
_inputSourcesChanged: function() {
let sources = this._settings.get_value(KEY_INPUT_SOURCES);
let nSources = sources.n_children();
this._inputSources = {};
this._ibusSources = {};
let infosList = [];
for (let i = 0; i < nSources; i++) {
let displayName;
let shortName;
let [type, id] = sources.get_child_value(i).deep_unpack();
let exists = false;
if (type == INPUT_SOURCE_TYPE_XKB) {
[exists, displayName, shortName, , ] =
this._xkbInfo.get_layout_info(id);
} else if (type == INPUT_SOURCE_TYPE_IBUS) {
if (this._disableIBus)
continue;
let engineDesc = this._ibusManager.getEngineDesc(id);
if (engineDesc) {
let language = IBus.get_language_name(engineDesc.get_language());
let longName = engineDesc.get_longname();
let textdomain = engineDesc.get_textdomain();
if (textdomain != '')
longName = Gettext.dgettext(textdomain, longName);
exists = true;
displayName = '%s (%s)'.format(language, longName);
shortName = this._makeEngineShortName(engineDesc);
}
}
if (exists)
infosList.push({ type: type, id: id, displayName: displayName, shortName: shortName });
}
if (infosList.length == 0) {
let type = INPUT_SOURCE_TYPE_XKB;
let id = KeyboardManager.DEFAULT_LAYOUT;
let [ , displayName, shortName, , ] = this._xkbInfo.get_layout_info(id);
infosList.push({ type: type, id: id, displayName: displayName, shortName: shortName });
}
let inputSourcesByShortName = {};
for (let i = 0; i < infosList.length; i++) {
let is = new InputSource(infosList[i].type,
infosList[i].id,
infosList[i].displayName,
infosList[i].shortName,
i);
is.connect('activate', Lang.bind(this, this._activateInputSource));
if (!(is.shortName in inputSourcesByShortName))
inputSourcesByShortName[is.shortName] = [];
inputSourcesByShortName[is.shortName].push(is);
this._inputSources[is.index] = is;
if (is.type == INPUT_SOURCE_TYPE_IBUS)
this._ibusSources[is.id] = is;
}
for (let i in this._inputSources) {
let is = this._inputSources[i];
if (inputSourcesByShortName[is.shortName].length > 1) {
let sub = inputSourcesByShortName[is.shortName].indexOf(is) + 1;
is.shortName += String.fromCharCode(0x2080 + sub);
}
}
this.emit('sources-changed');
let sourcesList = [];
for (let i in this._inputSources)
sourcesList.push(this._inputSources[i]);
this._keyboardManager.setUserLayouts(sourcesList.map(function(x) { return x.xkbId; }));
let mruSources = [];
for (let i = 0; i < this._mruSources.length; i++) {
for (let j = 0; j < sourcesList.length; j++)
if (this._mruSources[i].type == sourcesList[j].type &&
this._mruSources[i].id == sourcesList[j].id) {
mruSources = mruSources.concat(sourcesList.splice(j, 1));
break;
}
}
this._mruSources = mruSources.concat(sourcesList);
if (this._mruSources.length > 0) {
if (!this._disableIBus && this._backupSource) {
for (let i = 0; i < this._mruSources.length; i++) {
if (this._mruSources[i].type == this._backupSource.type &&
this._mruSources[i].id == this._backupSource.id) {
let currentSource = this._mruSources.splice(i, 1);
this._mruSources = currentSource.concat(this._mruSources);
break;
}
}
this._backupSource = null;
}
this._mruSources[0].activate();
}
// All ibus engines are preloaded here to reduce the launching time
// when users switch the input sources.
this._ibusManager.preloadEngines(Object.keys(this._ibusSources));
},
_makeEngineShortName: function(engineDesc) {
let symbol = engineDesc.get_symbol();
if (symbol && symbol[0])
return symbol;
let langCode = engineDesc.get_language().split('_', 1)[0];
if (langCode.length == 2 || langCode.length == 3)
return langCode.toLowerCase();
return String.fromCharCode(0x2328); // keyboard glyph
},
_ibusPropertiesRegistered: function(im, engineName, props) {
let source = this._ibusSources[engineName];
if (!source)
return;
source.properties = props;
if (source == this._currentSource)
this.emit('current-source-changed', null);
},
_ibusPropertyUpdated: function(im, engineName, prop) {
let source = this._ibusSources[engineName];
if (!source)
return;
if (this._updateSubProperty(source.properties, prop) &&
source == this._currentSource)
this.emit('current-source-changed', null);
},
_updateSubProperty: function(props, prop) {
if (!props)
return false;
let p;
for (let i = 0; (p = props.get(i)) != null; ++i) {
if (p.get_key() == prop.get_key() && p.get_prop_type() == prop.get_prop_type()) {
p.update(prop);
return true;
} else if (p.get_prop_type() == IBus.PropType.MENU) {
if (this._updateSubProperty(p.get_sub_props(), prop))
return true;
}
}
return false;
},
_ibusSetContentType: function(im, purpose, hints) {
if (purpose == IBus.InputPurpose.PASSWORD) {
if (Object.keys(this._inputSources).length == Object.keys(this._ibusSources).length)
return;
if (this._disableIBus)
return;
this._disableIBus = true;
this._backupSource = this._currentSource;
} else {
if (!this._disableIBus)
return;
this._disableIBus = false;
}
// If this._mruSources is not cleared before this.reload() is called,
// the order is different from the original one as IM sources will
// be appended to XKB sources.
this._mruSources = [];
this.reload();
},
_getNewInputSource: function(current) {
for (let i in this._inputSources) {
let is = this._inputSources[i];
if (is.type == current.type &&
is.id == current.id)
return is;
}
return this._currentSource;
},
_getCurrentWindow: function() {
if (Main.overview.visible)
return Main.overview;
else
return global.display.focus_window;
},
_setPerWindowInputSource: function() {
let window = this._getCurrentWindow();
if (!window)
return;
if (!window._inputSources) {
window._inputSources = this._inputSources;
window._currentSource = this._currentSource;
} else if (window._inputSources == this._inputSources) {
window._currentSource.activate();
} else {
window._inputSources = this._inputSources;
window._currentSource = this._getNewInputSource(window._currentSource);
window._currentSource.activate();
}
},
_sourcesPerWindowChanged: function() {
this._sourcesPerWindow = this._settings.get_boolean('per-window');
if (this._sourcesPerWindow && this._focusWindowNotifyId == 0) {
this._focusWindowNotifyId = global.display.connect('notify::focus-window',
Lang.bind(this, this._setPerWindowInputSource));
this._overviewShowingId = Main.overview.connect('showing',
Lang.bind(this, this._setPerWindowInputSource));
this._overviewHiddenId = Main.overview.connect('hidden',
Lang.bind(this, this._setPerWindowInputSource));
} else if (!this._sourcesPerWindow && this._focusWindowNotifyId != 0) {
global.display.disconnect(this._focusWindowNotifyId);
this._focusWindowNotifyId = 0;
Main.overview.disconnect(this._overviewShowingId);
this._overviewShowingId = 0;
Main.overview.disconnect(this._overviewHiddenId);
this._overviewHiddenId = 0;
let windows = global.get_window_actors().map(function(w) {
return w.meta_window;
});
for (let i = 0; i < windows.length; ++i) {
delete windows[i]._inputSources;
delete windows[i]._currentSource;
}
delete Main.overview._inputSources;
delete Main.overview._currentSource;
}
},
_changePerWindowSource: function() {
if (!this._sourcesPerWindow)
return;
let window = this._getCurrentWindow();
if (!window)
return;
window._inputSources = this._inputSources;
window._currentSource = this._currentSource;
},
get currentSource() {
return this._currentSource;
},
get inputSources() {
return this._inputSources;
},
});
Signals.addSignalMethods(InputSourceManager.prototype);
let _inputSourceManager = null;
function getInputSourceManager() {
if (_inputSourceManager == null)
_inputSourceManager = new InputSourceManager();
return _inputSourceManager;
}
const InputSourceIndicator = new Lang.Class({
Name: 'InputSourceIndicator',
Extends: PanelMenu.Button,
_init: function() {
this.parent(0.0, _("Keyboard"));
this._menuItems = {};
this._indicatorLabels = {};
this._container = new Shell.GenericContainer();
this._container.connect('get-preferred-width', Lang.bind(this, this._containerGetPreferredWidth));
this._container.connect('get-preferred-height', Lang.bind(this, this._containerGetPreferredHeight));
this._container.connect('allocate', Lang.bind(this, this._containerAllocate));
this._hbox = new St.BoxLayout({ style_class: 'panel-status-menu-box' });
this._hbox.add_child(this._container);
this._hbox.add_child(PopupMenu.arrowIcon(St.Side.BOTTOM));
this.actor.add_child(this._hbox);
this._propSeparator = new PopupMenu.PopupSeparatorMenuItem();
this.menu.addMenuItem(this._propSeparator);
this._propSection = new PopupMenu.PopupMenuSection();
this.menu.addMenuItem(this._propSection);
this._propSection.actor.hide();
this.menu.addMenuItem(new PopupMenu.PopupSeparatorMenuItem());
this._showLayoutItem = this.menu.addAction(_("Show Keyboard Layout"), Lang.bind(this, this._showLayout));
Main.sessionMode.connect('updated', Lang.bind(this, this._sessionUpdated));
this._sessionUpdated();
this._inputSourceManager = getInputSourceManager();
this._inputSourceManager.connect('sources-changed', Lang.bind(this, this._sourcesChanged));
this._inputSourceManager.connect('current-source-changed', Lang.bind(this, this._currentSourceChanged));
this._inputSourceManager.reload();
},
_sessionUpdated: function() {
// re-using "allowSettings" for the keyboard layout is a bit shady,
// but at least for now it is used as "allow popping up windows
// from shell menus"; we can always add a separate sessionMode
// option if need arises.
this._showLayoutItem.actor.visible = Main.sessionMode.allowSettings;
},
_sourcesChanged: function() {
for (let i in this._menuItems)
this._menuItems[i].destroy();
for (let i in this._indicatorLabels)
this._indicatorLabels[i].destroy();
let menuIndex = 0;
for (let i in this._inputSourceManager.inputSources) {
let is = this._inputSourceManager.inputSources[i];
let menuItem = new LayoutMenuItem(is.displayName, is.shortName);
menuItem.connect('activate', Lang.bind(is, is.activate));
let indicatorLabel = new St.Label({ text: is.shortName,
visible: false });
this._menuItems[i] = menuItem;
this._indicatorLabels[i] = indicatorLabel;
is.connect('changed', function() {
menuItem.indicator.set_text(is.shortName);
indicatorLabel.set_text(is.shorName);
});
this.menu.addMenuItem(menuItem, menuIndex++);
this._container.add_actor(indicatorLabel);
}
},
_currentSourceChanged: function(manager, oldSource) {
let nVisibleSources = Object.keys(this._inputSourceManager.inputSources).length;
let newSource = this._inputSourceManager.currentSource;
if (oldSource) {
this._menuItems[oldSource.index].setOrnament(PopupMenu.Ornament.NONE);
this._indicatorLabels[oldSource.index].hide();
}
if (!newSource || (nVisibleSources < 2 && !newSource.properties)) {
// This source index might be invalid if we weren't able
// to build a menu item for it, so we hide ourselves since
// we can't fix it here. *shrug*
// We also hide if we have only one visible source unless
// it's an IBus source with properties.
this.menu.close();
this.actor.hide();
return;
}
this.actor.show();
this._buildPropSection(newSource.properties);
this._menuItems[newSource.index].setOrnament(PopupMenu.Ornament.DOT);
this._indicatorLabels[newSource.index].show();
},
_buildPropSection: function(properties) {
this._propSeparator.actor.hide();
this._propSection.actor.hide();
this._propSection.removeAll();
this._buildPropSubMenu(this._propSection, properties);
if (!this._propSection.isEmpty()) {
this._propSection.actor.show();
this._propSeparator.actor.show();
}
},
_buildPropSubMenu: function(menu, props) {
if (!props)
return;
let ibusManager = IBusManager.getIBusManager();
let radioGroup = [];
let p;
for (let i = 0; (p = props.get(i)) != null; ++i) {
let prop = p;
if (!prop.get_visible())
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();
let currentSource = this._inputSourceManager.currentSource;
if (currentSource) {
let indicatorLabel = this._indicatorLabels[currentSource.index];
if (text && text.length > 0 && text.length < 3)
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.setOrnament(prop.get_state() == IBus.PropState.CHECKED ?
PopupMenu.Ornament.DOT : PopupMenu.Ornament.NONE);
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.setOrnament(PopupMenu.Ornament.DOT);
item.prop.set_state(IBus.PropState.CHECKED);
ibusManager.activateProperty(item.prop.get_key(),
IBus.PropState.CHECKED);
} else {
group[i].setOrnament(PopupMenu.Ornament.NONE);
group[i].prop.set_state(IBus.PropState.UNCHECKED);
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);
ibusManager.activateProperty(item.prop.get_key(),
IBus.PropState.CHECKED);
} else {
item.prop.set_state(IBus.PropState.UNCHECKED);
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() {
ibusManager.activateProperty(item.prop.get_key(),
item.prop.get_state());
}));
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);
}
},
_showLayout: function() {
Main.overview.hide();
let source = this._inputSourceManager.currentSource;
let xkbLayout = '';
let xkbVariant = '';
if (source.type == INPUT_SOURCE_TYPE_XKB) {
[, , , xkbLayout, xkbVariant] = KeyboardManager.getXkbInfo().get_layout_info(source.id);
} else if (source.type == INPUT_SOURCE_TYPE_IBUS) {
let engineDesc = IBusManager.getIBusManager().getEngineDesc(source.id);
if (engineDesc) {
xkbLayout = engineDesc.get_layout();
xkbVariant = engineDesc.get_layout_variant();
}
}
if (!xkbLayout || xkbLayout.length == 0)
return;
let description = xkbLayout;
if (xkbVariant.length > 0)
description = description + '\t' + xkbVariant;
Util.spawn(['gkbd-keyboard-display', '-l', description]);
},
_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._inputSourceManager.inputSources) {
let label = this._indicatorLabels[i];
let [min_width, natural_width] = label.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._inputSourceManager.inputSources) {
let label = this._indicatorLabels[i];
let [min_height, natural_height] = label.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._inputSourceManager.inputSources) {
let label = this._indicatorLabels[i];
label.allocate_align_fill(box, 0.5, 0.5, false, false, flags);
}
}
});