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// Copyright (c) 2013 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_VIEWS_COREWM_CURSOR_MANAGER_H_
#define UI_VIEWS_COREWM_CURSOR_MANAGER_H_
#include "base/basictypes.h"
#include "base/compiler_specific.h"
#include "base/memory/scoped_ptr.h"
#include "base/observer_list.h"
#include "ui/aura/client/cursor_client.h"
#include "ui/base/cursor/cursor.h"
#include "ui/gfx/native_widget_types.h"
#include "ui/gfx/point.h"
#include "ui/views/corewm/native_cursor_manager_delegate.h"
#include "ui/views/views_export.h"
namespace gfx {
class Display;
}
namespace views {
namespace corewm {
namespace internal {
class CursorState;
}
class NativeCursorManager;
// This class receives requests to change cursor properties, as well as
// requests to queue any further changes until a later time. It sends changes
// to the NativeCursorManager, which communicates back to us when these changes
// were made through the NativeCursorManagerDelegate interface.
class VIEWS_EXPORT CursorManager : public aura::client::CursorClient,
public NativeCursorManagerDelegate {
public:
CursorManager(scoped_ptr<NativeCursorManager> delegate);
virtual ~CursorManager();
// Overridden from aura::client::CursorClient:
virtual void SetCursor(gfx::NativeCursor) OVERRIDE;
virtual void ShowCursor() OVERRIDE;
virtual void HideCursor() OVERRIDE;
virtual bool IsCursorVisible() const OVERRIDE;
virtual void SetScale(float scale) OVERRIDE;
virtual float GetCurrentScale() const OVERRIDE;
virtual void SetCursorSet(ui::CursorSetType cursor_set) OVERRIDE;
virtual ui::CursorSetType GetCurrentCursorSet() const OVERRIDE;
virtual void EnableMouseEvents() OVERRIDE;
virtual void DisableMouseEvents() OVERRIDE;
virtual bool IsMouseEventsEnabled() const OVERRIDE;
virtual void SetDisplay(const gfx::Display& display) OVERRIDE;
virtual void LockCursor() OVERRIDE;
virtual void UnlockCursor() OVERRIDE;
virtual bool IsCursorLocked() const OVERRIDE;
virtual void AddObserver(
aura::client::CursorClientObserver* observer) OVERRIDE;
virtual void RemoveObserver(
aura::client::CursorClientObserver* observer) OVERRIDE;
private:
// Overridden from NativeCursorManagerDelegate:
virtual gfx::NativeCursor GetCurrentCursor() const OVERRIDE;
virtual bool GetCurrentVisibility() const OVERRIDE;
virtual bool GetMouseEventsEnabled() const OVERRIDE;
virtual void CommitCursor(gfx::NativeCursor cursor) OVERRIDE;
virtual void CommitVisibility(bool visible) OVERRIDE;
virtual void CommitScale(float scale) OVERRIDE;
virtual void CommitCursorSet(ui::CursorSetType cursor_set) OVERRIDE;
virtual void CommitMouseEventsEnabled(bool enabled) OVERRIDE;
scoped_ptr<NativeCursorManager> delegate_;
// Number of times LockCursor() has been invoked without a corresponding
// UnlockCursor().
int cursor_lock_count_;
// The current state of the cursor.
scoped_ptr<internal::CursorState> current_state_;
// The cursor state to restore when the cursor is unlocked.
scoped_ptr<internal::CursorState> state_on_unlock_;
ObserverList<aura::client::CursorClientObserver> observers_;
DISALLOW_COPY_AND_ASSIGN(CursorManager);
};
} // namespace corewm
} // namespace views
#endif // UI_VIEWS_COREWM_CURSOR_MANAGER_H_
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