gnome-shell/js/ui/keyboard.js

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// -*- mode: js; js-indent-level: 4; indent-tabs-mode: nil -*-
const FocusCaretTracker = imports.ui.focusCaretTracker;
const Atspi = imports.gi.Atspi;
const Caribou = imports.gi.Caribou;
const Clutter = imports.gi.Clutter;
const Gdk = imports.gi.Gdk;
const Gio = imports.gi.Gio;
const GLib = imports.gi.GLib;
const Lang = imports.lang;
const Meta = imports.gi.Meta;
const Shell = imports.gi.Shell;
const Signals = imports.signals;
const St = imports.gi.St;
const InputSourceManager = imports.ui.status.keyboard;
const BoxPointer = imports.ui.boxpointer;
const Layout = imports.ui.layout;
const Main = imports.ui.main;
const MessageTray = imports.ui.messageTray;
const KEYBOARD_REST_TIME = Layout.KEYBOARD_ANIMATION_TIME * 2 * 1000;
const KEYBOARD_SCHEMA = 'org.gnome.shell.keyboard';
const KEYBOARD_TYPE = 'keyboard-type';
const A11Y_APPLICATIONS_SCHEMA = 'org.gnome.desktop.a11y.applications';
const SHOW_KEYBOARD = 'screen-keyboard-enabled';
const Key = new Lang.Class({
Name: 'Key',
_init : function(key) {
this._key = key;
this.actor = this._makeKey(key, GLib.markup_escape_text(key.label, -1));
this.actor.connect('destroy', Lang.bind(this, this._onDestroy));
this._extended_keys = this._key.get_extended_keys();
this._extended_keyboard = null;
if (this._key.name == 'Control_L' || this._key.name == 'Alt_L')
this._key.latch = true;
if (this._extended_keys.length > 0) {
this._key.connect('notify::show-subkeys', Lang.bind(this, this._onShowSubkeysChanged));
this._boxPointer = new BoxPointer.BoxPointer(St.Side.BOTTOM,
{ x_fill: true,
y_fill: true,
x_align: St.Align.START });
// Adds style to existing keyboard style to avoid repetition
this._boxPointer.actor.add_style_class_name('keyboard-subkeys');
this._getExtendedKeys();
this.actor._extended_keys = this._extended_keyboard;
this._boxPointer.actor.hide();
Main.layoutManager.addChrome(this._boxPointer.actor);
}
},
_onDestroy: function() {
if (this._boxPointer) {
this._boxPointer.actor.destroy();
this._boxPointer = null;
}
},
_makeKey: function (key, label) {
let button = new St.Button ({ label: label,
style_class: 'keyboard-key' });
button.key_width = this._key.width;
button.connect('button-press-event', Lang.bind(this,
function () {
key.press();
return Clutter.EVENT_PROPAGATE;
}));
button.connect('button-release-event', Lang.bind(this,
function () {
key.release();
return Clutter.EVENT_PROPAGATE;
}));
button.connect('touch-event', Lang.bind(this,
function (actor, event) {
let device = event.get_device();
let sequence = event.get_event_sequence();
// We only handle touch events here on wayland. On X11
// we do get emulated pointer events, which already works
// for single-touch cases. Besides, the X11 passive touch grab
// set up by Mutter will make us see first the touch events
// and later the pointer events, so it will look like two
// unrelated series of events, we want to avoid double handling
// in these cases.
if (!Meta.is_wayland_compositor())
return Clutter.EVENT_PROPAGATE;
if (!this._touchPressed &&
event.type() == Clutter.EventType.TOUCH_BEGIN) {
device.sequence_grab(sequence, actor);
this._touchPressed = true;
key.press();
} else if (this._touchPressed &&
event.type() == Clutter.EventType.TOUCH_END &&
device.sequence_get_grabbed_actor(sequence) == actor) {
device.sequence_ungrab(sequence);
this._touchPressed = false;
key.release();
}
return Clutter.EVENT_PROPAGATE;
}));
return button;
},
_getUnichar: function(key) {
let keyval = key.keyval;
let unichar = Gdk.keyval_to_unicode(keyval);
if (unichar) {
return String.fromCharCode(unichar);
} else {
return key.name;
}
},
_getExtendedKeys: function () {
this._extended_keyboard = new St.BoxLayout({ style_class: 'keyboard-layout',
vertical: false });
for (let i = 0; i < this._extended_keys.length; ++i) {
let extended_key = this._extended_keys[i];
let label = this._getUnichar(extended_key);
let key = this._makeKey(extended_key, label);
key.extended_key = extended_key;
this._extended_keyboard.add(key);
}
this._boxPointer.bin.add_actor(this._extended_keyboard);
},
get subkeys() {
return this._boxPointer;
},
_onShowSubkeysChanged: function () {
if (this._key.show_subkeys) {
this._boxPointer.actor.raise_top();
this._boxPointer.setPosition(this.actor, 0.5);
this.emit('show-subkeys');
this.actor.fake_release();
this.actor.set_hover(false);
} else {
this.emit('hide-subkeys');
}
}
});
Signals.addSignalMethods(Key.prototype);
const Keyboard = new Lang.Class({
Name: 'Keyboard',
_init: function () {
this.actor = null;
this._focusInTray = false;
this._focusInExtendedKeys = false;
this._focusCaretTracker = new FocusCaretTracker.FocusCaretTracker();
this._focusCaretTracker.connect('focus-changed', Lang.bind(this, this._onFocusChanged));
this._focusCaretTracker.connect('caret-moved', Lang.bind(this, this._onCaretMoved));
this._currentAccessible = null;
this._caretTrackingEnabled = false;
this._updateCaretPositionId = 0;
this._keyboardSettings = new Gio.Settings({ schema_id: KEYBOARD_SCHEMA });
this._keyboardSettings.connect('changed', Lang.bind(this, this._sync));
this._a11yApplicationsSettings = new Gio.Settings({ schema_id: A11Y_APPLICATIONS_SCHEMA });
this._a11yApplicationsSettings.connect('changed', Lang.bind(this, this._sync));
this._daemonProxy = null;
this._lastDeviceId = null;
Caribou.DisplayAdapter.set_default(new LocalAdapter());
Meta.get_backend().connect('last-device-changed', Lang.bind(this,
function (backend, deviceId) {
let manager = Clutter.DeviceManager.get_default();
let device = manager.get_device(deviceId);
if (device.get_device_name().indexOf('XTEST') < 0) {
this._lastDeviceId = deviceId;
this._sync();
}
}));
this._sync();
this._showIdleId = 0;
this._subkeysBoxPointer = null;
this._capturedEventId = 0;
this._capturedPress = false;
this._keyboardVisible = false;
Main.layoutManager.connect('keyboard-visible-changed', Lang.bind(this, function(o, visible) {
this._keyboardVisible = visible;
}));
this._keyboardRequested = false;
this._keyboardRestingId = 0;
Main.layoutManager.connect('monitors-changed', Lang.bind(this, this._redraw));
this._redraw();
},
_setCaretTrackerEnabled: function (enabled) {
if (this._caretTrackingEnabled == enabled)
return;
this._caretTrackingEnabled = enabled;
if (enabled) {
this._focusCaretTracker.registerFocusListener();
this._focusCaretTracker.registerCaretListener();
} else {
this._focusCaretTracker.deregisterFocusListener();
this._focusCaretTracker.deregisterCaretListener();
}
},
_updateCaretPosition: function (accessible) {
if (this._updateCaretPositionId)
GLib.source_remove(this._updateCaretPositionId);
this._updateCaretPositionId = GLib.idle_add(GLib.PRIORITY_DEFAULT_IDLE, Lang.bind(this, function() {
this._updateCaretPositionId = 0;
let currentWindow = global.screen.get_display().focus_window;
if (!currentWindow)
return GLib.SOURCE_REMOVE;
let windowRect = currentWindow.get_frame_rect();
let text = accessible.get_text_iface();
let component = accessible.get_component_iface();
try {
let caretOffset = text.get_caret_offset();
let caretRect = text.get_character_extents(caretOffset, Atspi.CoordType.WINDOW);
let focusRect = component.get_extents(Atspi.CoordType.WINDOW);
caretRect.x += windowRect.x;
caretRect.y += windowRect.y;
focusRect.x += windowRect.x;
focusRect.y += windowRect.y;
if (caretRect.width == 0 && caretRect.height == 0)
caretRect = focusRect;
this.setEntryLocation(focusRect.x, focusRect.y, focusRect.width, focusRect.height);
this.setCursorLocation(caretRect.x, caretRect.y, caretRect.width, caretRect.height);
} catch (e) {
log('Error updating caret position for OSK: ' + e.message);
}
return GLib.SOURCE_REMOVE;
}));
GLib.Source.set_name_by_id(this._updateCaretPositionId, '[gnome-shell] this._updateCaretPosition');
},
_focusIsTextEntry: function (accessible) {
try {
let role = accessible.get_role();
let stateSet = accessible.get_state_set();
return stateSet.contains(Atspi.StateType.EDITABLE) || role == Atspi.Role.TERMINAL;
} catch (e) {
log('Error determining accessible role: ' + e.message);
return false;
}
},
_onFocusChanged: function (caretTracker, event) {
let accessible = event.source;
if (!this._focusIsTextEntry(accessible))
return;
let focused = event.detail1 != 0;
if (focused) {
this._currentAccessible = accessible;
this._updateCaretPosition(accessible);
this.show(Main.layoutManager.focusIndex);
} else if (this._currentAccessible == accessible) {
this._currentAccessible = null;
this.hide();
}
},
_onCaretMoved: function (caretTracker, event) {
let accessible = event.source;
if (this._currentAccessible == accessible)
this._updateCaretPosition(accessible);
},
_lastDeviceIsTouchscreen: function () {
if (!this._lastDeviceId)
return false;
let manager = Clutter.DeviceManager.get_default();
let device = manager.get_device(this._lastDeviceId);
if (!device)
return false;
return device.get_device_type() == Clutter.InputDeviceType.TOUCHSCREEN_DEVICE;
},
_sync: function () {
this._enableKeyboard = this._a11yApplicationsSettings.get_boolean(SHOW_KEYBOARD) ||
this._lastDeviceIsTouchscreen();
if (!this._enableKeyboard && !this._keyboard)
return;
if (this._enableKeyboard && this._keyboard &&
this._keyboard.keyboard_type == this._keyboardSettings.get_string(KEYBOARD_TYPE))
return;
this._setCaretTrackerEnabled(this._enableKeyboard);
if (this._keyboard)
this._destroyKeyboard();
if (this._enableKeyboard)
this._setupKeyboard();
else
Main.layoutManager.hideKeyboard(true);
},
_destroyKeyboard: function() {
if (this._keyboardNotifyId)
this._keyboard.disconnect(this._keyboardNotifyId);
if (this._keyboardGroupAddedId)
this._keyboard.disconnect(this._keyboardGroupAddedId);
if (this._keyboardGroupRemovedId)
this._keyboard.disconnect(this._keyboardGroupRemovedId);
if (this._focusNotifyId)
global.stage.disconnect(this._focusNotifyId);
this._keyboard = null;
this.actor.destroy();
this.actor = null;
this._destroySource();
if (this._daemonProxy) {
this._daemonProxy.QuitRemote(function (result, error) {
if (error) {
log(error.message);
return;
}
});
this._daemonProxy = null;
}
},
_setupKeyboard: function() {
this.actor = new St.BoxLayout({ name: 'keyboard', vertical: true, reactive: true });
Main.layoutManager.keyboardBox.add_actor(this.actor);
Main.layoutManager.trackChrome(this.actor);
this._keyboard = new Caribou.KeyboardModel({ keyboard_type: this._keyboardSettings.get_string(KEYBOARD_TYPE) });
this._groups = {};
this._current_page = null;
// Initialize keyboard key measurements
this._numOfHorizKeys = 0;
this._numOfVertKeys = 0;
this._addKeys();
// Keys should be layout according to the group, not the
// locale; as Caribou already provides the expected layout,
// this means enforcing LTR for all locales.
this.actor.text_direction = Clutter.TextDirection.LTR;
this._keyboardNotifyId = this._keyboard.connect('notify::active-group', Lang.bind(this, this._onGroupChanged));
this._keyboardGroupAddedId = this._keyboard.connect('group-added', Lang.bind(this, this._onGroupAdded));
this._keyboardGroupRemovedId = this._keyboard.connect('group-removed', Lang.bind(this, this._onGroupRemoved));
this._focusNotifyId = global.stage.connect('notify::key-focus', Lang.bind(this, this._onKeyFocusChanged));
this._createSource();
},
_onKeyFocusChanged: function () {
let focus = global.stage.key_focus;
// Showing an extended key popup and clicking a key from the extended keys
// will grab focus, but ignore that
let extendedKeysWereFocused = this._focusInExtendedKeys;
this._focusInExtendedKeys = focus && (focus._extended_keys || focus.extended_key);
if (this._focusInExtendedKeys || extendedKeysWereFocused)
return;
// Ignore focus changes caused by message tray showing/hiding
let trayWasFocused = this._focusInTray;
this._focusInTray = (focus && Main.messageTray.actor.contains(focus));
if (this._focusInTray || trayWasFocused)
return;
let time = global.get_current_time();
if (!(focus instanceof Clutter.Text)) {
this.hide();
return;
}
if (!this._showIdleId) {
this._showIdleId = GLib.idle_add(GLib.PRIORITY_DEFAULT_IDLE,
Lang.bind(this, function() {
this.show(Main.layoutManager.focusIndex);
return GLib.SOURCE_REMOVE;
}));
GLib.Source.set_name_by_id(this._showIdleId, '[gnome-shell] this.show');
}
},
_createLayersForGroup: function (gname) {
let group = this._keyboard.get_group(gname);
group.connect('notify::active-level', Lang.bind(this, this._onLevelChanged));
let layers = {};
let levels = group.get_levels();
for (let j = 0; j < levels.length; ++j) {
let lname = levels[j];
let level = group.get_level(lname);
let layout = new St.BoxLayout({ style_class: 'keyboard-layout',
vertical: true });
this._loadRows(level, layout);
layers[lname] = layout;
this.actor.add(layout, { x_fill: false });
layout.hide();
}
return layers;
},
_addKeys: function () {
let groups = this._keyboard.get_groups();
for (let i = 0; i < groups.length; ++i) {
let gname = groups[i];
this._groups[gname] = this._createLayersForGroup(gname);
}
this._setActiveLayer();
},
_onCapturedEvent: function(actor, event) {
let type = event.type();
let press = type == Clutter.EventType.BUTTON_PRESS;
let release = type == Clutter.EventType.BUTTON_RELEASE;
if (press)
this._capturedPress = true;
else if (release && this._capturedPress)
this._hideSubkeys();
return Clutter.EVENT_STOP;
},
_addRows : function (keys, layout) {
let keyboard_row = new St.BoxLayout();
for (let i = 0; i < keys.length; ++i) {
let children = keys[i].get_children();
let left_box = new St.BoxLayout({ style_class: 'keyboard-row' });
let center_box = new St.BoxLayout({ style_class: 'keyboard-row' });
let right_box = new St.BoxLayout({ style_class: 'keyboard-row' });
for (let j = 0; j < children.length; ++j) {
if (this._numOfHorizKeys == 0)
this._numOfHorizKeys = children.length;
let key = children[j];
let button = new Key(key);
switch (key.align) {
case 'right':
right_box.add(button.actor);
break;
case 'center':
center_box.add(button.actor);
break;
case 'left':
default:
left_box.add(button.actor);
break;
}
if (key.name == 'Caribou_Prefs') {
key.connect('key-released', Lang.bind(this, this.hide));
}
button.connect('show-subkeys', Lang.bind(this, function() {
if (this._subkeysBoxPointer)
this._subkeysBoxPointer.hide(BoxPointer.PopupAnimation.FULL);
this._subkeysBoxPointer = button.subkeys;
this._subkeysBoxPointer.show(BoxPointer.PopupAnimation.FULL);
if (!this._capturedEventId)
this._capturedEventId = this.actor.connect('captured-event',
Lang.bind(this, this._onCapturedEvent));
}));
button.connect('hide-subkeys', Lang.bind(this, function() {
this._hideSubkeys();
}));
}
keyboard_row.add(left_box, { expand: true, x_fill: false, x_align: St.Align.START });
keyboard_row.add(center_box, { expand: true, x_fill: false, x_align: St.Align.MIDDLE });
keyboard_row.add(right_box, { expand: true, x_fill: false, x_align: St.Align.END });
}
layout.add(keyboard_row);
},
_loadRows : function (level, layout) {
let rows = level.get_rows();
for (let i = 0; i < rows.length; ++i) {
let row = rows[i];
if (this._numOfVertKeys == 0)
this._numOfVertKeys = rows.length;
this._addRows(row.get_columns(), layout);
}
},
_redraw: function () {
if (!this._enableKeyboard)
return;
let monitor = Main.layoutManager.keyboardMonitor;
let maxHeight = monitor.height / 3;
this.actor.width = monitor.width;
let layout = this._current_page;
let verticalSpacing = layout.get_theme_node().get_length('spacing');
let padding = layout.get_theme_node().get_length('padding');
let box = layout.get_children()[0].get_children()[0];
let horizontalSpacing = box.get_theme_node().get_length('spacing');
let allHorizontalSpacing = (this._numOfHorizKeys - 1) * horizontalSpacing;
let keyWidth = Math.floor((this.actor.width - allHorizontalSpacing - 2 * padding) / this._numOfHorizKeys);
let allVerticalSpacing = (this._numOfVertKeys - 1) * verticalSpacing;
let keyHeight = Math.floor((maxHeight - allVerticalSpacing - 2 * padding) / this._numOfVertKeys);
let keySize = Math.min(keyWidth, keyHeight);
this.actor.height = keySize * this._numOfVertKeys + allVerticalSpacing + 2 * padding;
let rows = this._current_page.get_children();
for (let i = 0; i < rows.length; ++i) {
let keyboard_row = rows[i];
let boxes = keyboard_row.get_children();
for (let j = 0; j < boxes.length; ++j) {
let keys = boxes[j].get_children();
for (let k = 0; k < keys.length; ++k) {
let child = keys[k];
child.width = keySize * child.key_width;
child.height = keySize;
if (child._extended_keys) {
let extended_keys = child._extended_keys.get_children();
for (let n = 0; n < extended_keys.length; ++n) {
let extended_key = extended_keys[n];
extended_key.width = keySize;
extended_key.height = keySize;
}
}
}
}
}
},
_onLevelChanged: function () {
this._setActiveLayer();
this._redraw();
},
_onGroupChanged: function () {
this._setActiveLayer();
this._redraw();
},
_onGroupAdded: function (keyboard, gname) {
this._groups[gname] = this._createLayersForGroup(gname);
},
_onGroupRemoved: function (keyboard, gname) {
delete this._groups[gname];
},
_setActiveLayer: function () {
let active_group_name = this._keyboard.active_group;
let active_group = this._keyboard.get_group(active_group_name);
let active_level = active_group.active_level;
let layers = this._groups[active_group_name];
if (this._current_page != null) {
this._current_page.hide();
}
this._current_page = layers[active_level];
this._current_page.show();
},
_createSource: function () {
if (this._source == null) {
this._source = new KeyboardSource(this);
Main.messageTray.add(this._source);
}
},
_destroySource: function () {
if (this._source) {
this._source.destroy();
this._source = null;
}
},
shouldTakeEvent: function(event) {
let actor = event.get_source();
return Main.layoutManager.keyboardBox.contains(actor) ||
actor._extended_keys || actor.extended_key;
},
_clearKeyboardRestTimer: function() {
if (!this._keyboardRestingId)
return;
GLib.source_remove(this._keyboardRestingId);
this._keyboardRestingId = 0;
},
show: function (monitor) {
if (!this._enableKeyboard)
return;
this._clearShowIdle();
this._keyboardRequested = true;
if (this._keyboardVisible) {
if (monitor != Main.layoutManager.keyboardIndex) {
Main.layoutManager.keyboardIndex = monitor;
this._redraw();
}
return;
}
this._clearKeyboardRestTimer();
this._keyboardRestingId = GLib.timeout_add(GLib.PRIORITY_DEFAULT,
KEYBOARD_REST_TIME,
Lang.bind(this, function() {
this._clearKeyboardRestTimer();
this._show(monitor);
return GLib.SOURCE_REMOVE;
}));
GLib.Source.set_name_by_id(this._keyboardRestingId, '[gnome-shell] this._clearKeyboardRestTimer');
},
_show: function(monitor) {
if (!this._keyboardRequested)
return;
Main.layoutManager.keyboardIndex = monitor;
this._redraw();
Main.layoutManager.showKeyboard();
this._destroySource();
},
hide: function () {
if (!this._enableKeyboard)
return;
this._clearShowIdle();
this._keyboardRequested = false;
if (!this._keyboardVisible)
return;
this._clearKeyboardRestTimer();
this._keyboardRestingId = GLib.timeout_add(GLib.PRIORITY_DEFAULT,
KEYBOARD_REST_TIME,
Lang.bind(this, function() {
this._clearKeyboardRestTimer();
this._hide();
return GLib.SOURCE_REMOVE;
}));
GLib.Source.set_name_by_id(this._keyboardRestingId, '[gnome-shell] this._clearKeyboardRestTimer');
},
_hide: function() {
if (this._keyboardRequested)
return;
this._hideSubkeys();
Main.layoutManager.hideKeyboard();
this._createSource();
},
_hideSubkeys: function() {
if (this._subkeysBoxPointer) {
this._subkeysBoxPointer.hide(BoxPointer.PopupAnimation.FULL);
this._subkeysBoxPointer = null;
}
if (this._capturedEventId) {
this.actor.disconnect(this._capturedEventId);
this._capturedEventId = 0;
}
this._capturedPress = false;
},
_moveTemporarily: function () {
let currentWindow = global.screen.get_display().focus_window;
let rect = currentWindow.get_frame_rect();
let newX = rect.x;
let newY = 3 * this.actor.height / 2;
currentWindow.move_frame(true, newX, newY);
},
_setLocation: function (x, y) {
if (y >= 2 * this.actor.height)
this._moveTemporarily();
},
_clearShowIdle: function() {
if (!this._showIdleId)
return;
GLib.source_remove(this._showIdleId);
this._showIdleId = 0;
},
setCursorLocation: function(x, y, w, h) {
if (!this._enableKeyboard)
return;
// this._setLocation(x, y);
},
setEntryLocation: function(x, y, w, h) {
if (!this._enableKeyboard)
return;
// this._setLocation(x, y);
},
});
const KeyboardSource = new Lang.Class({
Name: 'KeyboardSource',
Extends: MessageTray.Source,
_init: function(keyboard) {
this._keyboard = keyboard;
this.parent(_("Keyboard"), 'input-keyboard-symbolic');
this.keepTrayOnSummaryClick = true;
},
handleSummaryClick: function(button) {
this.open();
return true;
},
open: function() {
// Show the OSK below the message tray
this._keyboard.show(Main.layoutManager.bottomIndex);
}
});
const LocalAdapter = new Lang.Class({
Name: 'LocalAdapter',
Extends: Caribou.XAdapter,
_init: function () {
this.parent();
let deviceManager = Clutter.DeviceManager.get_default();
this._virtualDevice = deviceManager.create_virtual_device(Clutter.InputDeviceType.KEYBOARD_DEVICE);
this._inputSourceManager = InputSourceManager.getInputSourceManager();
this._sourceChangedId = this._inputSourceManager.connect('current-source-changed',
Lang.bind(this, this._onSourceChanged));
this._sourcesModifiedId = this._inputSourceManager.connect ('sources-changed',
Lang.bind(this, this._onSourcesModified));
},
_onSourcesModified: function () {
this.emit('config-changed');
},
_onSourceChanged: function (inputSourceManager, oldSource) {
let source = inputSourceManager.currentSource;
this.emit('group-changed', source.index, source.id, '');
},
vfunc_get_groups: function () {
let inputSources = this._inputSourceManager.inputSources;
let groups = []
let variants = [];
for (let i in inputSources) {
let is = inputSources[i];
groups[is.index] = is.id;
variants[is.index] = '';
}
return [groups, groups.length, variants, variants.length];
},
vfunc_keyval_press: function(keyval) {
this._virtualDevice.notify_keyval(Clutter.get_current_event_time(),
keyval, Clutter.KeyState.PRESSED);
},
vfunc_keyval_release: function(keyval) {
this._virtualDevice.notify_keyval(Clutter.get_current_event_time(),
keyval, Clutter.KeyState.RELEASED);
},
});