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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 V0CustomElementCallbackQueue_h
#define V0CustomElementCallbackQueue_h
#include "core/dom/Element.h"
#include "core/dom/custom/V0CustomElementProcessingStep.h"
#include "platform/heap/Handle.h"
#include "wtf/Vector.h"
namespace blink {
// FIXME: Rename this because it contains resolution and upgrade as
// well as callbacks.
class V0CustomElementCallbackQueue
: public GarbageCollected<V0CustomElementCallbackQueue> {
WTF_MAKE_NONCOPYABLE(V0CustomElementCallbackQueue);
public:
static V0CustomElementCallbackQueue* create(Element*);
typedef int ElementQueueId;
ElementQueueId owner() const { return m_owner; }
void setOwner(ElementQueueId newOwner) {
// ElementCallbackQueues only migrate towards the top of the
// processing stack.
DCHECK_GE(newOwner, m_owner);
m_owner = newOwner;
}
bool processInElementQueue(ElementQueueId);
void append(V0CustomElementProcessingStep* invocation) {
m_queue.push_back(invocation);
}
bool inCreatedCallback() const { return m_inCreatedCallback; }
DECLARE_TRACE();
private:
explicit V0CustomElementCallbackQueue(Element*);
Member<Element> m_element;
HeapVector<Member<V0CustomElementProcessingStep>> m_queue;
ElementQueueId m_owner;
size_t m_index;
bool m_inCreatedCallback;
};
} // namespace blink
#endif // V0CustomElementCallbackQueue_h
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