2 * Copyright (C) 2012 Victor Carbune (victor@rosedu.org)
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
13 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 #include "core/events/GenericEventQueue.h"
30 #include "core/events/Event.h"
31 #include "platform/TraceEvent.h"
35 PassOwnPtr<GenericEventQueue> GenericEventQueue::create(EventTarget* owner)
37 return adoptPtr(new GenericEventQueue(owner));
40 GenericEventQueue::GenericEventQueue(EventTarget* owner)
42 , m_timer(this, &GenericEventQueue::timerFired)
47 GenericEventQueue::~GenericEventQueue()
51 bool GenericEventQueue::enqueueEvent(PassRefPtrWillBeRawPtr<Event> event)
56 if (event->target() == m_owner)
57 event->setTarget(nullptr);
59 TRACE_EVENT_ASYNC_BEGIN1("event", "GenericEventQueue:enqueueEvent", event.get(), "type", event->type().ascii());
60 m_pendingEvents.append(event);
62 if (!m_timer.isActive())
63 m_timer.startOneShot(0, FROM_HERE);
68 bool GenericEventQueue::cancelEvent(Event* event)
70 bool found = m_pendingEvents.contains(event);
73 m_pendingEvents.remove(m_pendingEvents.find(event));
74 TRACE_EVENT_ASYNC_END2("event", "GenericEventQueue:enqueueEvent", event, "type", event->type().ascii(), "status", "cancelled");
77 if (m_pendingEvents.isEmpty())
83 void GenericEventQueue::timerFired(Timer<GenericEventQueue>*)
85 ASSERT(!m_timer.isActive());
86 ASSERT(!m_pendingEvents.isEmpty());
88 WillBeHeapVector<RefPtrWillBeMember<Event> > pendingEvents;
89 m_pendingEvents.swap(pendingEvents);
91 RefPtr<EventTarget> protect(m_owner);
92 for (size_t i = 0; i < pendingEvents.size(); ++i) {
93 Event* event = pendingEvents[i].get();
94 EventTarget* target = event->target() ? event->target() : m_owner;
95 CString type(event->type().ascii());
96 TRACE_EVENT_ASYNC_STEP_INTO1("event", "GenericEventQueue:enqueueEvent", event, "dispatch", "type", type);
97 target->dispatchEvent(pendingEvents[i].release());
98 TRACE_EVENT_ASYNC_END1("event", "GenericEventQueue:enqueueEvent", event, "type", type);
102 void GenericEventQueue::close()
108 void GenericEventQueue::cancelAllEvents()
112 for (size_t i = 0; i < m_pendingEvents.size(); ++i) {
113 Event* event = m_pendingEvents[i].get();
114 TRACE_EVENT_ASYNC_END2("event", "GenericEventQueue:enqueueEvent", event, "type", event->type().ascii(), "status", "cancelled");
116 m_pendingEvents.clear();
119 bool GenericEventQueue::hasPendingEvents() const
121 return m_pendingEvents.size();