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