1 /* 2 * Copyright (C) 2013 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 * 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer 12 * in the documentation and/or other materials provided with the 13 * distribution. 14 * 3. Neither the name of Google Inc. nor the names of its contributors 15 * may be used to endorse or promote products derived from this 16 * software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 #ifndef CustomElementCallbackQueue_h 32 #define CustomElementCallbackQueue_h 33 34 #include "core/dom/CustomElementCallbackInvocation.h" 35 #include "wtf/PassOwnPtr.h" 36 #include "wtf/PassRefPtr.h" 37 #include "wtf/RefPtr.h" 38 #include "wtf/Vector.h" 39 40 namespace WebCore { 41 42 class CustomElementCallbackQueue { 43 WTF_MAKE_NONCOPYABLE(CustomElementCallbackQueue); 44 public: 45 static PassOwnPtr<CustomElementCallbackQueue> create(PassRefPtr<Element>); 46 47 typedef int ElementQueue; 48 ElementQueue owner() { return m_owner; } 49 void setOwner(ElementQueue newOwner) 50 { 51 // ElementCallbackQueues only migrate towards the top of the 52 // processing stack. 53 ASSERT(newOwner >= m_owner); 54 m_owner = newOwner; 55 } 56 57 void append(PassOwnPtr<CustomElementCallbackInvocation> invocation) { m_queue.append(invocation); } 58 void processInElementQueue(ElementQueue); 59 60 private: 61 CustomElementCallbackQueue(PassRefPtr<Element>); 62 63 RefPtr<Element> m_element; 64 Vector<OwnPtr<CustomElementCallbackInvocation> > m_queue; 65 ElementQueue m_owner; 66 size_t m_index; 67 }; 68 69 } 70 71 #endif // CustomElementCallbackQueue_h 72
