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// Copyright (c) 2011 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 UI_AURA_SHELL_DRAG_DROP_CONTROLLER_H_
#define UI_AURA_SHELL_DRAG_DROP_CONTROLLER_H_
#pragma once
#include "ui/aura_shell/aura_shell_export.h"
#include "ui/aura/client/drag_drop_client.h"
#include "ui/aura/event.h"
#include "ui/aura/event_filter.h"
#include "ui/base/dragdrop/os_exchange_data.h"
#include "ui/base/events.h"
#include "ui/gfx/point.h"
namespace aura {
class Window;
}
namespace aura_shell {
namespace test {
class DragDropControllerTest;
}
namespace internal {
class DragImageView;
class AURA_SHELL_EXPORT DragDropController : public aura::DragDropClient,
public aura::EventFilter {
public:
DragDropController();
virtual ~DragDropController();
void set_should_block_during_drag_drop(bool should_block_during_drag_drop) {
should_block_during_drag_drop_ = should_block_during_drag_drop;
}
// Overridden from aura::DragDropClient:
virtual int StartDragAndDrop(const ui::OSExchangeData& data,
int operation) OVERRIDE;
virtual void DragUpdate(aura::Window* target,
const aura::MouseEvent& event) OVERRIDE;
virtual void Drop(aura::Window* target,
const aura::MouseEvent& event) OVERRIDE;
virtual void DragCancel() OVERRIDE;
virtual bool IsDragDropInProgress() OVERRIDE;
// Overridden from aura::EventFilter:
virtual bool PreHandleKeyEvent(aura::Window* target,
aura::KeyEvent* event) OVERRIDE;
virtual bool PreHandleMouseEvent(aura::Window* target,
aura::MouseEvent* event) OVERRIDE;
virtual ui::TouchStatus PreHandleTouchEvent(aura::Window* target,
aura::TouchEvent* event) OVERRIDE;
private:
friend class aura_shell::test::DragDropControllerTest;
// Helper method to reset everything.
void Cleanup();
scoped_ptr<DragImageView> drag_image_;
const ui::OSExchangeData* drag_data_;
int drag_operation_;
aura::Window* dragged_window_;
bool drag_drop_in_progress_;
// Indicates whether the caller should be blocked on a drag/drop session.
// Only be used for tests.
bool should_block_during_drag_drop_;
DISALLOW_COPY_AND_ASSIGN(DragDropController);
};
} // namespace internal
} // namespace aura_shell
#endif // UI_AURA_SHELL_DRAG_DROP_CONTROLLER_H_
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