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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef ASH_WM_DEFAULT_WINDOW_RESIZER_H_
#define ASH_WM_DEFAULT_WINDOW_RESIZER_H_
#include "ash/wm/window_resizer.h"
#include "base/compiler_specific.h"
namespace ash {
// WindowResizer is used by ToplevelWindowEventFilter to handle dragging, moving
// or resizing a window. All coordinates passed to this are in the parent
// windows coordiantes.
class ASH_EXPORT DefaultWindowResizer : public WindowResizer {
public:
virtual ~DefaultWindowResizer();
// Creates a new DefaultWindowResizer. The caller takes ownership of the
// returned object. Returns NULL if not resizable.
static DefaultWindowResizer* Create(aura::Window* window,
const gfx::Point& location,
int window_component);
// Returns true if the drag will result in changing the window in anyway.
bool is_resizable() const { return details_.is_resizable; }
bool changed_size() const {
return !(details_.bounds_change & kBoundsChange_Repositions);
}
aura::Window* target_window() const { return details_.window; }
// WindowResizer overides:
virtual void Drag(const gfx::Point& location, int event_flags) OVERRIDE;
virtual void CompleteDrag(int event_flags) OVERRIDE;
virtual void RevertDrag() OVERRIDE;
private:
explicit DefaultWindowResizer(const Details& details);
const Details details_;
// Set to true once Drag() is invoked and the bounds of the window change.
bool did_move_or_resize_;
DISALLOW_COPY_AND_ASSIGN(DefaultWindowResizer);
};
} // namespace aura
#endif // ASH_WM_DEFAULT_WINDOW_RESIZER_H_