/*
* Copyright (C) 2012 Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef PointerLockController_h
#define PointerLockController_h
#include "wtf/RefPtr.h"
#include "wtf/text/AtomicString.h"
namespace WebCore {
class Element;
class Document;
class Page;
class PlatformMouseEvent;
class VoidCallback;
class PointerLockController {
WTF_MAKE_NONCOPYABLE(PointerLockController);
WTF_MAKE_FAST_ALLOCATED;
public:
static PassOwnPtr<PointerLockController> create(Page*);
void requestPointerLock(Element* target);
void requestPointerUnlock();
void elementRemoved(Element*);
void documentDetached(Document*);
bool lockPending() const;
Element* element() const;
void didAcquirePointerLock();
void didNotAcquirePointerLock();
void didLosePointerLock();
void dispatchLockedMouseEvent(const PlatformMouseEvent&, const AtomicString& eventType);
private:
explicit PointerLockController(Page*);
void clearElement();
void enqueueEvent(const AtomicString& type, Element*);
void enqueueEvent(const AtomicString& type, Document*);
Page* m_page;
bool m_lockPending;
RefPtr<Element> m_element;
RefPtr<Document> m_documentOfRemovedElementWhileWaitingForUnlock;
};
} // namespace WebCore
#endif // PointerLockController_h