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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_CURSOR_MANAGER_H_
#define ASH_WM_CURSOR_MANAGER_H_
#include "ash/ash_export.h"
#include "base/basictypes.h"
#include "base/compiler_specific.h"
#include "base/memory/scoped_ptr.h"
#include "ui/aura/client/cursor_client.h"
#include "ui/gfx/native_widget_types.h"
namespace ash {
namespace test {
class CursorManagerTestApi;
}
class ImageCursors;
// This class controls the visibility and the type of the cursor.
// The cursor type can be locked so that the type stays the same
// until it's unlocked.
class ASH_EXPORT CursorManager : public aura::client::CursorClient {
public:
CursorManager();
virtual ~CursorManager();
bool is_cursor_locked() const { return cursor_lock_count_ > 0; }
// Overridden from aura::client::CursorClient:
virtual void SetCursor(gfx::NativeCursor) OVERRIDE;
virtual void ShowCursor(bool show) OVERRIDE;
virtual bool IsCursorVisible() const OVERRIDE;
virtual void SetDeviceScaleFactor(float device_scale_factor) OVERRIDE;
virtual void LockCursor() OVERRIDE;
virtual void UnlockCursor() OVERRIDE;
private:
friend class test::CursorManagerTestApi;
void SetCursorInternal(gfx::NativeCursor cursor);
void ShowCursorInternal(bool show);
// Number of times LockCursor() has been invoked without a corresponding
// UnlockCursor().
int cursor_lock_count_;
// Set to true if SetCursor() is invoked while |cursor_lock_count_| == 0.
bool did_cursor_change_;
// Cursor to set once |cursor_lock_count_| is set to 0. Only valid if
// |did_cursor_change_| is true.
gfx::NativeCursor cursor_to_set_on_unlock_;
// Set to true if ShowCursor() is invoked while |cursor_lock_count_| == 0.
bool did_visibility_change_;
// The visibility to set once |cursor_lock_count_| is set to 0. Only valid if
// |did_visibility_change_| is true.
bool show_on_unlock_;
// Is cursor visible?
bool cursor_visible_;
// The cursor currently set.
gfx::NativeCursor current_cursor_;
scoped_ptr<ImageCursors> image_cursors_;
DISALLOW_COPY_AND_ASSIGN(CursorManager);
};
} // namespace ash
#endif // UI_AURA_CURSOR_MANAGER_H_
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