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 "SourceBufferList.h" 33 34#if ENABLE(MEDIA_SOURCE) 35 36#include "Event.h" 37#include "SourceBuffer.h" 38 39namespace WebCore { 40 41SourceBufferList::SourceBufferList(ScriptExecutionContext* context) 42 : m_scriptExecutionContext(context) 43 , m_asyncEventQueue(*this) 44{ 45} 46 47SourceBufferList::~SourceBufferList() 48{ 49 ASSERT(m_list.isEmpty()); 50} 51 52void SourceBufferList::add(PassRefPtr<SourceBuffer> buffer) 53{ 54 m_list.append(buffer); 55 scheduleEvent(eventNames().addsourcebufferEvent); 56} 57 58void SourceBufferList::remove(SourceBuffer* buffer) 59{ 60 size_t index = m_list.find(buffer); 61 if (index == notFound) 62 return; 63 m_list.remove(index); 64 scheduleEvent(eventNames().removesourcebufferEvent); 65} 66 67void SourceBufferList::clear() 68{ 69 m_list.clear(); 70 scheduleEvent(eventNames().removesourcebufferEvent); 71} 72 73void SourceBufferList::swap(Vector<RefPtr<SourceBuffer>>& other) 74{ 75 int changeInSize = other.size() - m_list.size(); 76 int addedEntries = 0; 77 for (auto& sourceBuffer : other) { 78 if (!m_list.contains(sourceBuffer)) 79 ++addedEntries; 80 } 81 int removedEntries = addedEntries - changeInSize; 82 83 m_list.swap(other); 84 85 if (addedEntries) 86 scheduleEvent(eventNames().addsourcebufferEvent); 87 if (removedEntries) 88 scheduleEvent(eventNames().removesourcebufferEvent); 89} 90 91void SourceBufferList::scheduleEvent(const AtomicString& eventName) 92{ 93 RefPtr<Event> event = Event::create(eventName, false, false); 94 event->setTarget(this); 95 96 m_asyncEventQueue.enqueueEvent(event.release()); 97} 98 99 100} // namespace WebCore 101 102#endif 103