Unity 8
KeymapSwitcher.qml
1 /*
2  * Copyright (C) 2016 Canonical, Ltd.
3  *
4  * This program is free software; you can redistribute it and/or modify
5  * it under the terms of the GNU General Public License as published by
6  * the Free Software Foundation; version 3.
7  *
8  * This program is distributed in the hope that it will be useful,
9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11  * GNU General Public License for more details.
12  *
13  * You should have received a copy of the GNU General Public License
14  * along with this program. If not, see <http://www.gnu.org/licenses/>.
15  */
16 
17 import QtQuick 2.4
18 import AccountsService 0.1
19 import GlobalShortcut 1.0
20 import QMenuModel 0.1
21 import Unity.Application 0.1
22 
23 QtObject {
24  id: root
25 
26  // to be set from outside
27  property var focusedSurface: null
28 
29  property GlobalShortcut shortcutNext: GlobalShortcut {
30  shortcut: Qt.MetaModifier|Qt.Key_Space
31  onTriggered: root.nextKeymap()
32  active: root.keymapCount > 1
33  }
34 
35  property GlobalShortcut shortcutPrevious: GlobalShortcut {
36  shortcut: Qt.MetaModifier|Qt.ShiftModifier|Qt.Key_Space
37  onTriggered: root.previousKeymap()
38  active: root.keymapCount > 1
39  }
40 
41  readonly property var keymaps: AccountsService.keymaps
42  readonly property int keymapCount: keymaps.length
43  // default keymap, either the one remembered by the indicator, or the 1st one selected by user
44  property int currentKeymapIndex: actionGroup.currentAction.valid ? actionGroup.currentAction.state : 0
45  readonly property string currentKeymap: keymaps[currentKeymapIndex]
46 
47  function nextKeymap() {
48  var nextIndex = 0;
49 
50  if (currentKeymapIndex !== -1 && currentKeymapIndex < keymapCount - 1) {
51  nextIndex = currentKeymapIndex + 1;
52  }
53  currentKeymapIndex = nextIndex;
54  }
55 
56  function previousKeymap() {
57  var prevIndex = keymapCount - 1;
58 
59  if (currentKeymapIndex > 0) {
60  prevIndex = currentKeymapIndex - 1;
61  }
62  currentKeymapIndex = prevIndex;
63  }
64 
65  property Binding surfaceKeymapBinding: Binding {
66  target: root.focusedSurface
67  property: "keymap"
68  value: root.currentKeymap
69  }
70 
71  // indicator
72  property QDBusActionGroup actionGroup: QDBusActionGroup {
73  busType: DBus.SessionBus
74  busName: "com.canonical.indicator.keyboard"
75  objectPath: "/com/canonical/indicator/keyboard"
76 
77  property variant currentAction: action("current")
78  property variant activeAction: action("active")
79 
80  Component.onCompleted: actionGroup.start();
81  }
82 
83  onCurrentKeymapIndexChanged: {
84  actionGroup.currentAction.updateState(currentKeymapIndex);
85  }
86 
87  readonly property int activeActionState: actionGroup.activeAction.valid ? actionGroup.activeAction.state : -1
88 
89  onActiveActionStateChanged: {
90  if (activeActionState != -1) {
91  currentKeymapIndex = activeActionState;
92  }
93  }
94 }