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1 // Copyright (c) 2012 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 #ifndef ASH_COMMON_WM_DEFAULT_WINDOW_RESIZER_H_ | |
6 #define ASH_COMMON_WM_DEFAULT_WINDOW_RESIZER_H_ | |
7 | |
8 #include "ash/ash_export.h" | |
9 #include "ash/common/wm/window_resizer.h" | |
10 #include "base/macros.h" | |
11 | |
12 namespace ash { | |
13 class WmShell; | |
14 | |
15 // WindowResizer is used by ToplevelWindowEventFilter to handle dragging, moving | |
16 // or resizing a window. All coordinates passed to this are in the parent | |
17 // windows coordiantes. | |
18 class ASH_EXPORT DefaultWindowResizer : public WindowResizer { | |
19 public: | |
20 ~DefaultWindowResizer() override; | |
21 | |
22 // Creates a new DefaultWindowResizer. The caller takes ownership of the | |
23 // returned object. | |
24 static DefaultWindowResizer* Create(wm::WindowState* window_state); | |
25 | |
26 // Returns true if the drag will result in changing the window in anyway. | |
27 bool is_resizable() const { return details().is_resizable; } | |
28 | |
29 bool changed_size() const { | |
30 return !(details().bounds_change & kBoundsChange_Repositions); | |
31 } | |
32 | |
33 // WindowResizer: | |
34 void Drag(const gfx::Point& location, int event_flags) override; | |
35 void CompleteDrag() override; | |
36 void RevertDrag() override; | |
37 | |
38 private: | |
39 explicit DefaultWindowResizer(wm::WindowState* window_state); | |
40 | |
41 // Set to true once Drag() is invoked and the bounds of the window change. | |
42 bool did_move_or_resize_; | |
43 | |
44 WmShell* shell_; | |
45 | |
46 DISALLOW_COPY_AND_ASSIGN(DefaultWindowResizer); | |
47 }; | |
48 | |
49 } // namespace aura | |
50 | |
51 #endif // ASH_COMMON_WM_DEFAULT_WINDOW_RESIZER_H_ | |
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