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1 // Copyright 2016 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #include "ash/wm/window_state_aura.h" | |
6 | |
7 #include "ash/wm/window_properties.h" | |
8 #include "ash/wm/window_state.h" | |
9 #include "ash/wm/window_util.h" | |
10 #include "ash/wm_window.h" | |
11 #include "ui/aura/window.h" | |
12 | |
13 namespace ash { | |
14 namespace wm { | |
15 namespace { | |
16 | |
17 // This classes is used so that the WindowState constructor can be made | |
18 // protected. GetWindowState() is the only place that should be creating | |
19 // WindowState. | |
20 class WindowStateAura : public wm::WindowState { | |
21 public: | |
22 explicit WindowStateAura(WmWindow* window) : wm::WindowState(window) {} | |
23 ~WindowStateAura() override {} | |
24 | |
25 private: | |
26 DISALLOW_COPY_AND_ASSIGN(WindowStateAura); | |
27 }; | |
28 | |
29 } // namespace | |
30 | |
31 WindowState* GetActiveWindowState() { | |
32 aura::Window* active = GetActiveWindow(); | |
33 return active ? GetWindowState(active) : nullptr; | |
34 } | |
35 | |
36 WindowState* GetWindowState(aura::Window* window) { | |
37 if (!window) | |
38 return nullptr; | |
39 WindowState* settings = window->GetProperty(kWindowStateKey); | |
40 if (!settings) { | |
41 settings = new WindowStateAura(WmWindow::Get(window)); | |
42 window->SetProperty(kWindowStateKey, settings); | |
43 } | |
44 return settings; | |
45 } | |
46 | |
47 const WindowState* GetWindowState(const aura::Window* window) { | |
48 return GetWindowState(const_cast<aura::Window*>(window)); | |
49 } | |
50 | |
51 } // namespace wm | |
52 } // namespace ash | |
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