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d8d7db82a0
This CL generated by |sed -i '/sky\/engine\/config.h/d'| and a manual sweep to catch some oddballs. TBR=eseidel@chromium.org Review URL: https://codereview.chromium.org/1206763002.
107 lines
3.4 KiB
C++
107 lines
3.4 KiB
C++
/*
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* Copyright (C) 2010 Google Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following disclaimer
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* in the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Google Inc. nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "sky/engine/core/events/ScopedEventQueue.h"
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#include "sky/engine/core/events/Event.h"
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#include "sky/engine/core/events/EventDispatchMediator.h"
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#include "sky/engine/core/events/EventDispatcher.h"
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#include "sky/engine/core/events/EventTarget.h"
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#include "sky/engine/wtf/OwnPtr.h"
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namespace blink {
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ScopedEventQueue* ScopedEventQueue::s_instance = 0;
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ScopedEventQueue::ScopedEventQueue()
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: m_scopingLevel(0)
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{
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}
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ScopedEventQueue::~ScopedEventQueue()
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{
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ASSERT(!m_scopingLevel);
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ASSERT(!m_queuedEventDispatchMediators.size());
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}
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void ScopedEventQueue::initialize()
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{
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ASSERT(!s_instance);
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OwnPtr<ScopedEventQueue> instance = adoptPtr(new ScopedEventQueue);
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s_instance = instance.leakPtr();
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}
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void ScopedEventQueue::enqueueEventDispatchMediator(PassRefPtr<EventDispatchMediator> mediator)
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{
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if (m_scopingLevel)
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m_queuedEventDispatchMediators.append(mediator);
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else
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dispatchEvent(mediator);
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}
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void ScopedEventQueue::dispatchAllEvents()
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{
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Vector<RefPtr<EventDispatchMediator> > queuedEventDispatchMediators;
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queuedEventDispatchMediators.swap(m_queuedEventDispatchMediators);
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for (size_t i = 0; i < queuedEventDispatchMediators.size(); i++)
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dispatchEvent(queuedEventDispatchMediators[i].release());
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}
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void ScopedEventQueue::dispatchEvent(PassRefPtr<EventDispatchMediator> mediator) const
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{
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ASSERT(mediator->event()->target());
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Node* node = mediator->event()->target()->toNode();
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EventDispatcher::dispatchEvent(node, mediator);
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}
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ScopedEventQueue* ScopedEventQueue::instance()
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{
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if (!s_instance)
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initialize();
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return s_instance;
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}
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void ScopedEventQueue::incrementScopingLevel()
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{
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m_scopingLevel++;
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}
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void ScopedEventQueue::decrementScopingLevel()
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{
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ASSERT(m_scopingLevel);
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m_scopingLevel--;
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if (!m_scopingLevel)
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dispatchAllEvents();
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}
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}
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