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/*
* Copyright (C) 2013 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.
* 3. Neither the name of Google Inc. nor the names of its contributors
* may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT
* OWNER OR 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 THIRD_PARTY_BLINK_RENDERER_CORE_HTML_CUSTOM_V0_CUSTOM_ELEMENT_CALLBACK_QUEUE_H_
#define THIRD_PARTY_BLINK_RENDERER_CORE_HTML_CUSTOM_V0_CUSTOM_ELEMENT_CALLBACK_QUEUE_H_
#include "base/macros.h"
#include "third_party/blink/renderer/core/dom/element.h"
#include "third_party/blink/renderer/core/html/custom/v0_custom_element_processing_step.h"
#include "third_party/blink/renderer/platform/heap/handle.h"
#include "third_party/blink/renderer/platform/wtf/vector.h"
namespace blink {
// FIXME: Rename this because it contains resolution and upgrade as
// well as callbacks.
class V0CustomElementCallbackQueue
: public GarbageCollected<V0CustomElementCallbackQueue> {
public:
explicit V0CustomElementCallbackQueue(Element*);
typedef int ElementQueueId;
ElementQueueId Owner() const { return owner_; }
void SetOwner(ElementQueueId new_owner) {
// ElementCallbackQueues only migrate towards the top of the
// processing stack.
DCHECK_GE(new_owner, owner_);
owner_ = new_owner;
}
bool ProcessInElementQueue(ElementQueueId);
void Append(V0CustomElementProcessingStep* invocation) {
queue_.push_back(invocation);
}
bool InCreatedCallback() const { return in_created_callback_; }
void Trace(Visitor*) const;
private:
Member<Element> element_;
HeapVector<Member<V0CustomElementProcessingStep>> queue_;
ElementQueueId owner_;
wtf_size_t index_;
bool in_created_callback_;
DISALLOW_COPY_AND_ASSIGN(V0CustomElementCallbackQueue);
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_CORE_HTML_CUSTOM_V0_CUSTOM_ELEMENT_CALLBACK_QUEUE_H_
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