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      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 are
      6  * met:
      7  *
      8  *     * Redistributions of source code must retain the above copyright
      9  * notice, this list of conditions and the following disclaimer.
     10  *     * Redistributions in binary form must reproduce the above
     11  * copyright notice, this list of conditions and the following disclaimer
     12  * in the documentation and/or other materials provided with the
     13  * distribution.
     14  *     * Neither the name of Google Inc. nor the names of its
     15  * contributors may be used to endorse or promote products derived from
     16  * this 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 #include "config.h"
     32 #include "modules/mediasource/SourceBufferList.h"
     33 
     34 #include "core/events/GenericEventQueue.h"
     35 #include "modules/EventModules.h"
     36 #include "modules/mediasource/SourceBuffer.h"
     37 
     38 namespace blink {
     39 
     40 SourceBufferList::SourceBufferList(ExecutionContext* context, GenericEventQueue* asyncEventQueue)
     41     : m_executionContext(context)
     42     , m_asyncEventQueue(asyncEventQueue)
     43 {
     44 }
     45 
     46 SourceBufferList::~SourceBufferList()
     47 {
     48 #if !ENABLE(OILPAN)
     49     ASSERT(m_list.isEmpty());
     50 #endif
     51 }
     52 
     53 void SourceBufferList::add(SourceBuffer* buffer)
     54 {
     55     m_list.append(buffer);
     56     scheduleEvent(EventTypeNames::addsourcebuffer);
     57 }
     58 
     59 void SourceBufferList::insert(size_t position, SourceBuffer* buffer)
     60 {
     61     m_list.insert(position, buffer);
     62     scheduleEvent(EventTypeNames::addsourcebuffer);
     63 }
     64 
     65 void SourceBufferList::remove(SourceBuffer* buffer)
     66 {
     67     size_t index = m_list.find(buffer);
     68     if (index == kNotFound)
     69         return;
     70     m_list.remove(index);
     71     scheduleEvent(EventTypeNames::removesourcebuffer);
     72 }
     73 
     74 void SourceBufferList::clear()
     75 {
     76     m_list.clear();
     77     scheduleEvent(EventTypeNames::removesourcebuffer);
     78 }
     79 
     80 void SourceBufferList::scheduleEvent(const AtomicString& eventName)
     81 {
     82     ASSERT(m_asyncEventQueue);
     83 
     84     RefPtrWillBeRawPtr<Event> event = Event::create(eventName);
     85     event->setTarget(this);
     86 
     87     m_asyncEventQueue->enqueueEvent(event.release());
     88 }
     89 
     90 const AtomicString& SourceBufferList::interfaceName() const
     91 {
     92     return EventTargetNames::SourceBufferList;
     93 }
     94 
     95 ExecutionContext* SourceBufferList::executionContext() const
     96 {
     97     return m_executionContext;
     98 }
     99 
    100 void SourceBufferList::trace(Visitor* visitor)
    101 {
    102     visitor->trace(m_list);
    103     EventTargetWithInlineData::trace(visitor);
    104 }
    105 
    106 } // namespace blink
    107