1/* 2 * Copyright (C) 2012 Google Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 15 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 16 * DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY 17 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 18 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 19 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON 20 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 21 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 22 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 23 */ 24 25#ifndef PointerLockController_h 26#define PointerLockController_h 27 28#if ENABLE(POINTER_LOCK) 29 30#include <wtf/RefPtr.h> 31#include <wtf/text/AtomicString.h> 32 33namespace WebCore { 34 35class Element; 36class Document; 37class Page; 38class PlatformMouseEvent; 39class VoidCallback; 40 41class PointerLockController { 42 WTF_MAKE_NONCOPYABLE(PointerLockController); 43 WTF_MAKE_FAST_ALLOCATED; 44public: 45 static PassOwnPtr<PointerLockController> create(Page*); 46 47 void requestPointerLock(Element* target); 48 void requestPointerUnlock(); 49 void elementRemoved(Element*); 50 void documentDetached(Document*); 51 bool lockPending() const; 52 Element* element() const; 53 54 void didAcquirePointerLock(); 55 void didNotAcquirePointerLock(); 56 void didLosePointerLock(); 57 void dispatchLockedMouseEvent(const PlatformMouseEvent&, const AtomicString& eventType); 58 59private: 60 explicit PointerLockController(Page*); 61 void clearElement(); 62 void enqueueEvent(const AtomicString& type, Element*); 63 void enqueueEvent(const AtomicString& type, Document*); 64 Page* m_page; 65 bool m_lockPending; 66 RefPtr<Element> m_element; 67 RefPtr<Document> m_documentOfRemovedElementWhileWaitingForUnlock; 68}; 69 70} // namespace WebCore 71 72#endif // ENABLE(POINTER_LOCK) 73 74#endif // PointerLockController_h 75