1/* 2 * Copyright (C) 2007, 2008, 2010 Apple 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 6 * are met: 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. 12 * 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 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26#include "config.h" 27#include "core/html/HTMLSourceElement.h" 28 29#include "core/HTMLNames.h" 30#include "core/css/MediaList.h" 31#include "core/css/MediaQueryList.h" 32#include "core/css/MediaQueryMatcher.h" 33#include "core/dom/Document.h" 34#include "core/events/Event.h" 35#include "core/events/EventSender.h" 36#include "core/html/HTMLMediaElement.h" 37#include "core/html/HTMLPictureElement.h" 38#include "platform/Logging.h" 39 40namespace blink { 41 42using namespace HTMLNames; 43 44static SourceEventSender& sourceErrorEventSender() 45{ 46 DEFINE_STATIC_LOCAL(SourceEventSender, sharedErrorEventSender, (EventTypeNames::error)); 47 return sharedErrorEventSender; 48} 49 50class HTMLSourceElement::Listener FINAL : public MediaQueryListListener { 51public: 52 explicit Listener(HTMLSourceElement* element) : m_element(element) { } 53 virtual void notifyMediaQueryChanged() OVERRIDE 54 { 55 if (m_element) 56 m_element->notifyMediaQueryChanged(); 57 } 58 59 void clearElement() { m_element = nullptr; } 60 virtual void trace(Visitor* visitor) OVERRIDE 61 { 62 visitor->trace(m_element); 63 MediaQueryListListener::trace(visitor); 64 } 65private: 66 RawPtrWillBeMember<HTMLSourceElement> m_element; 67}; 68 69inline HTMLSourceElement::HTMLSourceElement(Document& document) 70 : HTMLElement(sourceTag, document) 71 , m_listener(adoptRefWillBeNoop(new Listener(this))) 72{ 73 WTF_LOG(Media, "HTMLSourceElement::HTMLSourceElement - %p", this); 74} 75 76DEFINE_NODE_FACTORY(HTMLSourceElement) 77 78HTMLSourceElement::~HTMLSourceElement() 79{ 80 sourceErrorEventSender().cancelEvent(this); 81#if !ENABLE(OILPAN) 82 m_listener->clearElement(); 83#endif 84} 85 86Node::InsertionNotificationRequest HTMLSourceElement::insertedInto(ContainerNode* insertionPoint) 87{ 88 HTMLElement::insertedInto(insertionPoint); 89 Element* parent = parentElement(); 90 if (isHTMLMediaElement(parent)) 91 toHTMLMediaElement(parent)->sourceWasAdded(this); 92 if (isHTMLPictureElement(parent)) 93 toHTMLPictureElement(parent)->sourceOrMediaChanged(); 94 return InsertionDone; 95} 96 97void HTMLSourceElement::removedFrom(ContainerNode* removalRoot) 98{ 99 Element* parent = parentElement(); 100 if (!parent && removalRoot->isElementNode()) 101 parent = toElement(removalRoot); 102 if (isHTMLMediaElement(parent)) 103 toHTMLMediaElement(parent)->sourceWasRemoved(this); 104 if (isHTMLPictureElement(parent)) 105 toHTMLPictureElement(parent)->sourceOrMediaChanged(); 106 HTMLElement::removedFrom(removalRoot); 107} 108 109void HTMLSourceElement::setSrc(const String& url) 110{ 111 setAttribute(srcAttr, AtomicString(url)); 112} 113 114const AtomicString& HTMLSourceElement::type() const 115{ 116 return getAttribute(typeAttr); 117} 118 119void HTMLSourceElement::setType(const AtomicString& type) 120{ 121 setAttribute(typeAttr, type); 122} 123 124void HTMLSourceElement::scheduleErrorEvent() 125{ 126 WTF_LOG(Media, "HTMLSourceElement::scheduleErrorEvent - %p", this); 127 sourceErrorEventSender().dispatchEventSoon(this); 128} 129 130void HTMLSourceElement::cancelPendingErrorEvent() 131{ 132 WTF_LOG(Media, "HTMLSourceElement::cancelPendingErrorEvent - %p", this); 133 sourceErrorEventSender().cancelEvent(this); 134} 135 136void HTMLSourceElement::dispatchPendingEvent(SourceEventSender* eventSender) 137{ 138 ASSERT_UNUSED(eventSender, eventSender == &sourceErrorEventSender()); 139 WTF_LOG(Media, "HTMLSourceElement::dispatchPendingEvent - %p", this); 140 dispatchEvent(Event::createCancelable(EventTypeNames::error)); 141} 142 143bool HTMLSourceElement::mediaQueryMatches() const 144{ 145 if (!m_mediaQueryList) 146 return true; 147 148 return m_mediaQueryList->matches(); 149} 150 151bool HTMLSourceElement::isURLAttribute(const Attribute& attribute) const 152{ 153 return attribute.name() == srcAttr || HTMLElement::isURLAttribute(attribute); 154} 155 156void HTMLSourceElement::parseAttribute(const QualifiedName& name, const AtomicString& value) 157{ 158 HTMLElement::parseAttribute(name, value); 159 if (name == mediaAttr) { 160 if (m_mediaQueryList) 161 m_mediaQueryList->removeListener(m_listener); 162 RefPtrWillBeRawPtr<MediaQuerySet> set = MediaQuerySet::create(value); 163 m_mediaQueryList = MediaQueryList::create(&document(), &document().mediaQueryMatcher(), set.release()); 164 m_mediaQueryList->addListener(m_listener); 165 } 166 if (name == srcsetAttr || name == sizesAttr || name == mediaAttr || name == typeAttr) { 167 Element* parent = parentElement(); 168 if (isHTMLPictureElement(parent)) 169 toHTMLPictureElement(parent)->sourceOrMediaChanged(); 170 } 171} 172 173void HTMLSourceElement::notifyMediaQueryChanged() 174{ 175 Element* parent = parentElement(); 176 if (isHTMLPictureElement(parent)) 177 toHTMLPictureElement(parent)->sourceOrMediaChanged(); 178} 179 180void HTMLSourceElement::trace(Visitor* visitor) 181{ 182 visitor->trace(m_mediaQueryList); 183 visitor->trace(m_listener); 184 HTMLElement::trace(visitor); 185} 186 187} 188