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. Returns NULL if not resizable. 22 static DefaultWindowResizer* Create(aura::Window* window, 23 const gfx::Point& location, 24 int window_component, 25 aura::client::WindowMoveSource source); 26 27 // Returns true if the drag will result in changing the window in anyway. 28 bool is_resizable() const { return details_.is_resizable; } 29 30 bool changed_size() const { 31 return !(details_.bounds_change & kBoundsChange_Repositions); 32 } 33 aura::Window* target_window() const { return details_.window; } 34 35 // WindowResizer: 36 virtual void Drag(const gfx::Point& location, int event_flags) OVERRIDE; 37 virtual void CompleteDrag(int event_flags) OVERRIDE; 38 virtual void RevertDrag() OVERRIDE; 39 virtual aura::Window* GetTarget() OVERRIDE; 40 virtual const gfx::Point& GetInitialLocation() const OVERRIDE; 41 42 private: 43 explicit DefaultWindowResizer(const Details& details); 44 45 const Details details_; 46 47 // Set to true once Drag() is invoked and the bounds of the window change. 48 bool did_move_or_resize_; 49 50 DISALLOW_COPY_AND_ASSIGN(DefaultWindowResizer); 51 }; 52 53 } // namespace aura 54 55 #endif // ASH_WM_DEFAULT_WINDOW_RESIZER_H_ 56
