Unity 8
StagedFullscreenPolicy.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 Unity.Application 0.1
19 
20 // This component will change the state of the surface based on the surface
21 // state and shell chrome.
22 //
23 // Chrome changed to LowChrome -> server sets client window state to "fullscreen"
24 // Chrome changed to NormalChrome -> server sets client window to "restored" state.
25 // Chrome set and state change to restored -> server RESETS client window state to "fullscreen"
26 // Chrome not set and state change to restored -> client window stays "restored"
27 // Chrome not set and state change to fulscreen -> client window stays "fullscreen"
28 QtObject {
29  property bool active: true
30  property QtObject application: null
31 
32  readonly property var lastSurface: application && application.session ?
33  application.session.lastSurface : null
34  onLastSurfaceChanged: {
35  if (!active || !lastSurface) return;
36  if (lastSurface.shellChrome === Mir.LowChrome) {
37  lastSurface.state = Mir.FullscreenState;
38  }
39  }
40 
41  property var _connections: Connections {
42  target: lastSurface
43  onShellChromeChanged: {
44  if (!active || !lastSurface) return;
45  if (lastSurface.shellChrome === Mir.LowChrome) {
46  lastSurface.state = Mir.FullscreenState;
47  } else {
48  lastSurface.state = Mir.RestoredState;
49  }
50  }
51  onStateChanged: {
52  if (!active) return;
53  if (lastSurface.state === Mir.RestoredState && lastSurface.shellChrome === Mir.LowChrome) {
54  lastSurface.state = Mir.FullscreenState;
55  }
56  }
57  }
58 }