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/*
* Copyright (C) 2007, 2008, 2010 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "third_party/blink/renderer/core/html/html_source_element.h"
#include "third_party/blink/public/platform/task_type.h"
#include "third_party/blink/renderer/core/css/media_list.h"
#include "third_party/blink/renderer/core/css/media_query_list.h"
#include "third_party/blink/renderer/core/css/media_query_matcher.h"
#include "third_party/blink/renderer/core/dom/document.h"
#include "third_party/blink/renderer/core/dom/events/event.h"
#include "third_party/blink/renderer/core/html/html_picture_element.h"
#include "third_party/blink/renderer/core/html/media/html_media_element.h"
#include "third_party/blink/renderer/core/html_names.h"
#include "third_party/blink/renderer/platform/wtf/functional.h"
#define SOURCE_LOG_LEVEL 3
namespace blink {
class HTMLSourceElement::Listener final : public MediaQueryListListener {
public:
explicit Listener(HTMLSourceElement* element) : element_(element) {}
void NotifyMediaQueryChanged() override {
if (element_)
element_->NotifyMediaQueryChanged();
}
void ClearElement() { element_ = nullptr; }
void Trace(Visitor* visitor) override {
visitor->Trace(element_);
MediaQueryListListener::Trace(visitor);
}
private:
Member<HTMLSourceElement> element_;
};
HTMLSourceElement::HTMLSourceElement(Document& document)
: HTMLElement(html_names::kSourceTag, document),
listener_(MakeGarbageCollected<Listener>(this)) {
DVLOG(SOURCE_LOG_LEVEL) << "HTMLSourceElement - " << (void*)this;
}
HTMLSourceElement::~HTMLSourceElement() = default;
void HTMLSourceElement::CreateMediaQueryList(const AtomicString& media) {
RemoveMediaQueryListListener();
if (media.IsEmpty()) {
media_query_list_ = nullptr;
return;
}
scoped_refptr<MediaQuerySet> set = MediaQuerySet::Create(media);
media_query_list_ = MakeGarbageCollected<MediaQueryList>(
&GetDocument(), &GetDocument().GetMediaQueryMatcher(), set);
AddMediaQueryListListener();
}
void HTMLSourceElement::DidMoveToNewDocument(Document& old_document) {
CreateMediaQueryList(FastGetAttribute(html_names::kMediaAttr));
HTMLElement::DidMoveToNewDocument(old_document);
}
Node::InsertionNotificationRequest HTMLSourceElement::InsertedInto(
ContainerNode& insertion_point) {
HTMLElement::InsertedInto(insertion_point);
Element* parent = parentElement();
if (auto* media = ToHTMLMediaElementOrNull(parent))
media->SourceWasAdded(this);
auto* html_picture_element = parent == insertion_point
? DynamicTo<HTMLPictureElement>(parent)
: nullptr;
if (html_picture_element)
html_picture_element->SourceOrMediaChanged();
return kInsertionDone;
}
void HTMLSourceElement::RemovedFrom(ContainerNode& removal_root) {
Element* parent = parentElement();
bool was_removed_from_parent = !parent;
if (was_removed_from_parent)
parent = DynamicTo<Element>(&removal_root);
if (auto* media = ToHTMLMediaElementOrNull(parent))
media->SourceWasRemoved(this);
if (auto* picture = DynamicTo<HTMLPictureElement>(parent)) {
RemoveMediaQueryListListener();
if (was_removed_from_parent)
picture->SourceOrMediaChanged();
}
HTMLElement::RemovedFrom(removal_root);
}
void HTMLSourceElement::RemoveMediaQueryListListener() {
if (media_query_list_)
media_query_list_->RemoveListener(listener_);
}
void HTMLSourceElement::AddMediaQueryListListener() {
if (media_query_list_)
media_query_list_->AddListener(listener_);
}
const AtomicString& HTMLSourceElement::type() const {
return FastGetAttribute(html_names::kTypeAttr);
}
void HTMLSourceElement::setType(const AtomicString& type) {
setAttribute(html_names::kTypeAttr, type);
}
void HTMLSourceElement::ScheduleErrorEvent() {
DVLOG(SOURCE_LOG_LEVEL) << "scheduleErrorEvent - " << (void*)this;
pending_error_event_ = PostCancellableTask(
*GetDocument().GetTaskRunner(TaskType::kDOMManipulation), FROM_HERE,
WTF::Bind(&HTMLSourceElement::DispatchPendingEvent,
WrapPersistent(this)));
}
void HTMLSourceElement::CancelPendingErrorEvent() {
DVLOG(SOURCE_LOG_LEVEL) << "cancelPendingErrorEvent - " << (void*)this;
pending_error_event_.Cancel();
}
void HTMLSourceElement::DispatchPendingEvent() {
DVLOG(SOURCE_LOG_LEVEL) << "dispatchPendingEvent - " << (void*)this;
DispatchEvent(*Event::CreateCancelable(event_type_names::kError));
}
bool HTMLSourceElement::MediaQueryMatches() const {
if (!media_query_list_)
return true;
return media_query_list_->matches();
}
bool HTMLSourceElement::IsURLAttribute(const Attribute& attribute) const {
return attribute.GetName() == html_names::kSrcAttr ||
HTMLElement::IsURLAttribute(attribute);
}
void HTMLSourceElement::ParseAttribute(
const AttributeModificationParams& params) {
HTMLElement::ParseAttribute(params);
const QualifiedName& name = params.name;
if (name == html_names::kMediaAttr)
CreateMediaQueryList(params.new_value);
if (name == html_names::kSrcsetAttr || name == html_names::kSizesAttr ||
name == html_names::kMediaAttr || name == html_names::kTypeAttr) {
if (auto* picture = DynamicTo<HTMLPictureElement>(parentElement()))
picture->SourceOrMediaChanged();
}
}
void HTMLSourceElement::NotifyMediaQueryChanged() {
if (auto* picture = DynamicTo<HTMLPictureElement>(parentElement()))
picture->SourceOrMediaChanged();
}
void HTMLSourceElement::Trace(Visitor* visitor) {
visitor->Trace(media_query_list_);
visitor->Trace(listener_);
HTMLElement::Trace(visitor);
}
} // namespace blink