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 THIRD_PARTY_BLINK_RENDERER_CORE_HTML_CUSTOM_V0_CUSTOM_ELEMENT_CALLBACK_QUEUE_H_ 32 #define THIRD_PARTY_BLINK_RENDERER_CORE_HTML_CUSTOM_V0_CUSTOM_ELEMENT_CALLBACK_QUEUE_H_ 33 34 #include "base/macros.h" 35 #include "third_party/blink/renderer/core/dom/element.h" 36 #include "third_party/blink/renderer/core/html/custom/v0_custom_element_processing_step.h" 37 #include "third_party/blink/renderer/platform/heap/handle.h" 38 #include "third_party/blink/renderer/platform/wtf/vector.h" 39 40 namespace blink { 41 42 // FIXME: Rename this because it contains resolution and upgrade as 43 // well as callbacks. 44 class V0CustomElementCallbackQueue 45 : public GarbageCollected<V0CustomElementCallbackQueue> { 46 public: 47 explicit V0CustomElementCallbackQueue(Element*); 48 49 typedef int ElementQueueId; Owner()50 ElementQueueId Owner() const { return owner_; } 51 SetOwner(ElementQueueId new_owner)52 void SetOwner(ElementQueueId new_owner) { 53 // ElementCallbackQueues only migrate towards the top of the 54 // processing stack. 55 DCHECK_GE(new_owner, owner_); 56 owner_ = new_owner; 57 } 58 59 bool ProcessInElementQueue(ElementQueueId); 60 Append(V0CustomElementProcessingStep * invocation)61 void Append(V0CustomElementProcessingStep* invocation) { 62 queue_.push_back(invocation); 63 } InCreatedCallback()64 bool InCreatedCallback() const { return in_created_callback_; } 65 66 void Trace(Visitor*) const; 67 68 private: 69 Member<Element> element_; 70 HeapVector<Member<V0CustomElementProcessingStep>> queue_; 71 ElementQueueId owner_; 72 wtf_size_t index_; 73 bool in_created_callback_; 74 75 DISALLOW_COPY_AND_ASSIGN(V0CustomElementCallbackQueue); 76 }; 77 78 } // namespace blink 79 80 #endif // THIRD_PARTY_BLINK_RENDERER_CORE_HTML_CUSTOM_V0_CUSTOM_ELEMENT_CALLBACK_QUEUE_H_ 81