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 
31  property var surface: null
32  onSurfaceChanged: {
33  if (!active || !surface) return;
34  if (surface.shellChrome === Mir.LowChrome) {
35  surface.requestState(Mir.FullscreenState);
36  }
37  }
38 
39  property var _connections: Connections {
40  target: surface
41  onShellChromeChanged: {
42  if (!active || !surface) return;
43  if (surface.shellChrome === Mir.LowChrome) {
44  surface.requestState(Mir.FullscreenState);
45  } else {
46  surface.requestState(Mir.RestoredState);
47  }
48  }
49  onStateChanged: {
50  if (!active) return;
51  if (surface.state === Mir.RestoredState && surface.shellChrome === Mir.LowChrome) {
52  surface.requestState(Mir.FullscreenState);
53  }
54  }
55  }
56 }