static void mediaAttrSetter(v8::Local<v8::String> name, v8::Local<v8::Value> value, const v8::AccessorInfo& info)
{
HTMLSourceElement* imp = V8HTMLSourceElement::toNative(info.Holder());
V8TRYCATCH_FOR_V8STRINGRESOURCE_VOID(V8StringResource<>, v, value);
imp->setMedia(v);
return;
}
// http://picture.responsiveimages.org/#update-source-set
ImageCandidate HTMLImageElement::findBestFitImageFromPictureParent()
{
ASSERT(isMainThread());
Node* parent = parentNode();
if (!parent || !isHTMLPictureElement(*parent))
return ImageCandidate();
for (Node* child = parent->firstChild(); child; child = child->nextSibling()) {
if (child == this)
return ImageCandidate();
if (!isHTMLSourceElement(*child))
continue;
HTMLSourceElement* source = toHTMLSourceElement(child);
if (!source->fastGetAttribute(srcAttr).isNull())
UseCounter::countDeprecation(document(), UseCounter::PictureSourceSrc);
String srcset = source->fastGetAttribute(srcsetAttr);
if (srcset.isEmpty())
continue;
String type = source->fastGetAttribute(typeAttr);
if (!type.isEmpty() && !supportedImageType(type))
continue;
if (!source->mediaQueryMatches())
continue;
ImageCandidate candidate = bestFitSourceForSrcsetAttribute(document().devicePixelRatio(), sourceSize(*source), source->fastGetAttribute(srcsetAttr), &document());
if (candidate.isEmpty())
continue;
return candidate;
}
return ImageCandidate();
}
static void mediaAttrSetter(v8::Local<v8::String> name, v8::Local<v8::Value> value, const v8::AccessorInfo& info) {
INC_STATS("DOM.HTMLSourceElement.media._set");
HTMLSourceElement* imp = V8HTMLSourceElement::toNative(info.Holder());
V8Parameter<> v = value;
imp->setMedia(v);
return;
}
bool
HTMLImageElement::SourceElementMatches(nsIContent* aSourceNode)
{
MOZ_ASSERT(aSourceNode->IsHTMLElement(nsGkAtoms::source));
DebugOnly<Element *> parent(nsINode::GetParentElement());
MOZ_ASSERT(parent && parent->IsHTMLElement(nsGkAtoms::picture));
MOZ_ASSERT(IsPreviousSibling(aSourceNode, this));
// Check media and type
HTMLSourceElement *src = static_cast<HTMLSourceElement*>(aSourceNode);
if (!src->MatchesCurrentMedia()) {
return false;
}
nsAutoString type;
if (aSourceNode->GetAttr(kNameSpaceID_None, nsGkAtoms::type, type) &&
!SupportedPictureSourceType(type)) {
return false;
}
return true;
}
void MediaDocumentParser::createDocumentStructure()
{
RefPtr<Element> rootElement = document()->createElement(htmlTag, false);
document()->appendChild(rootElement, IGNORE_EXCEPTION);
document()->setCSSTarget(rootElement.get());
static_cast<HTMLHtmlElement*>(rootElement.get())->insertedByParser();
if (document()->frame())
document()->frame()->loader()->dispatchDocumentElementAvailable();
RefPtr<Element> body = document()->createElement(bodyTag, false);
rootElement->appendChild(body, IGNORE_EXCEPTION);
RefPtr<Element> mediaElement = document()->createElement(videoTag, false);
m_mediaElement = static_cast<HTMLVideoElement*>(mediaElement.get());
m_mediaElement->setAttribute(controlsAttr, "");
m_mediaElement->setAttribute(autoplayAttr, "");
m_mediaElement->setAttribute(nameAttr, "media");
RefPtr<Element> sourceElement = document()->createElement(sourceTag, false);
HTMLSourceElement* source = static_cast<HTMLSourceElement*>(sourceElement.get());
source->setSrc(document()->url());
if (DocumentLoader* loader = document()->loader())
source->setType(loader->responseMIMEType());
m_mediaElement->appendChild(sourceElement, IGNORE_EXCEPTION);
body->appendChild(mediaElement, IGNORE_EXCEPTION);
Frame* frame = document()->frame();
if (!frame)
return;
frame->loader()->activeDocumentLoader()->setMainResourceDataBufferingPolicy(DoNotBufferData);
}
// http://picture.responsiveimages.org/#update-source-set
ImageCandidate HTMLImageElement::findBestFitImageFromPictureParent()
{
ASSERT(isMainThread());
Node* parent = parentNode();
if (!parent || !isHTMLPictureElement(*parent))
return ImageCandidate();
for (Node* child = parent->firstChild(); child; child = child->nextSibling()) {
if (child == this)
return ImageCandidate();
if (!isHTMLSourceElement(*child))
continue;
HTMLSourceElement* source = toHTMLSourceElement(child);
String srcset = source->fastGetAttribute(srcsetAttr);
if (srcset.isEmpty())
continue;
String type = source->fastGetAttribute(typeAttr);
if (!type.isEmpty() && !supportedImageType(type))
continue;
String media = source->fastGetAttribute(mediaAttr);
if (!media.isEmpty()) {
RefPtrWillBeRawPtr<MediaQuerySet> mediaQueries = MediaQuerySet::create(media);
if (!document().mediaQueryMatcher().evaluate(mediaQueries.get()))
continue;
}
unsigned effectiveSize = SizesAttributeParser::findEffectiveSize(source->fastGetAttribute(sizesAttr), MediaValuesCached::create(document()));
ImageCandidate candidate = bestFitSourceForSrcsetAttribute(document().devicePixelRatio(), effectiveSize, source->fastGetAttribute(srcsetAttr));
if (candidate.isEmpty())
continue;
return candidate;
}
return ImageCandidate();
}
void JSHTMLSourceElement::putValueProperty(ExecState* exec, int token, JSValue* value)
{
switch (token) {
case SrcAttrNum: {
HTMLSourceElement* imp = static_cast<HTMLSourceElement*>(impl());
imp->setSrc(value->toString(exec));
break;
}
case TypeAttrNum: {
HTMLSourceElement* imp = static_cast<HTMLSourceElement*>(impl());
imp->setType(value->toString(exec));
break;
}
case MediaAttrNum: {
HTMLSourceElement* imp = static_cast<HTMLSourceElement*>(impl());
imp->setMedia(value->toString(exec));
break;
}
}
}
JSValue* JSHTMLSourceElement::getValueProperty(ExecState* exec, int token) const
{
switch (token) {
case SrcAttrNum: {
HTMLSourceElement* imp = static_cast<HTMLSourceElement*>(impl());
return jsString(exec, imp->src());
}
case TypeAttrNum: {
HTMLSourceElement* imp = static_cast<HTMLSourceElement*>(impl());
return jsString(exec, imp->type());
}
case MediaAttrNum: {
HTMLSourceElement* imp = static_cast<HTMLSourceElement*>(impl());
return jsString(exec, imp->media());
}
case ConstructorAttrNum:
return getConstructor(exec);
}
return 0;
}
String HTMLMediaElement::pickMedia()
{
// 3.14.9.2. Location of the media resource
String mediaSrc = getAttribute(srcAttr);
if (mediaSrc.isEmpty()) {
for (Node* n = firstChild(); n; n = n->nextSibling()) {
if (n->hasTagName(sourceTag)) {
HTMLSourceElement* source = static_cast<HTMLSourceElement*>(n);
if (!source->hasAttribute(srcAttr))
continue;
if (source->hasAttribute(mediaAttr)) {
MediaQueryEvaluator screenEval("screen", document()->frame(), renderer() ? renderer()->style() : 0);
RefPtr<MediaList> media = MediaList::createAllowingDescriptionSyntax(source->media());
if (!screenEval.eval(media.get()))
continue;
}
if (source->hasAttribute(typeAttr)) {
String type = source->type().stripWhiteSpace();
// "type" can have parameters after a semi-colon, strip them before checking with the type registry
int semi = type.find(';');
if (semi != -1)
type = type.left(semi).stripWhiteSpace();
if (!MIMETypeRegistry::isSupportedMediaMIMEType(type))
continue;
}
mediaSrc = source->src().string();
break;
}
}
}
if (!mediaSrc.isEmpty())
mediaSrc = document()->completeURL(mediaSrc).string();
return mediaSrc;
}
void setJSHTMLSourceElementMedia(ExecState* exec, JSObject* thisObject, JSValue value)
{
JSHTMLSourceElement* castedThisObj = static_cast<JSHTMLSourceElement*>(thisObject);
HTMLSourceElement* imp = static_cast<HTMLSourceElement*>(castedThisObj->impl());
imp->setMedia(value.toString(exec));
}
static v8::Handle<v8::Value> mediaAttrGetter(v8::Local<v8::String> name, const v8::AccessorInfo& info)
{
HTMLSourceElement* imp = V8HTMLSourceElement::toNative(info.Holder());
return v8String(imp->media(), info.GetIsolate());
}
static v8::Handle<v8::Value> srcAttrGetter(v8::Local<v8::String> name, const v8::AccessorInfo& info)
{
HTMLSourceElement* imp = V8HTMLSourceElement::toNative(info.Holder());
return v8String(imp->getURLAttribute(WebCore::HTMLNames::srcAttr), info.GetIsolate());
}
static v8::Handle<v8::Value> mediaAttrGetter(v8::Local<v8::String> name, const v8::AccessorInfo& info) {
INC_STATS("DOM.HTMLSourceElement.media._get");
HTMLSourceElement* imp = V8HTMLSourceElement::toNative(info.Holder());
return v8String(imp->media());
}
void MediaDocumentParser::createDocumentStructure() {
DCHECK(document());
HTMLHtmlElement* rootElement = HTMLHtmlElement::create(*document());
document()->appendChild(rootElement);
rootElement->insertedByParser();
if (isDetached())
return; // runScriptsAtDocumentElementAvailable can detach the frame.
HTMLHeadElement* head = HTMLHeadElement::create(*document());
HTMLMetaElement* meta = HTMLMetaElement::create(*document());
meta->setAttribute(nameAttr, "viewport");
meta->setAttribute(contentAttr, "width=device-width");
head->appendChild(meta);
HTMLVideoElement* media = HTMLVideoElement::create(*document());
media->setAttribute(controlsAttr, "");
media->setAttribute(autoplayAttr, "");
media->setAttribute(nameAttr, "media");
HTMLSourceElement* source = HTMLSourceElement::create(*document());
source->setSrc(document()->url());
if (DocumentLoader* loader = document()->loader())
source->setType(loader->responseMIMEType());
media->appendChild(source);
HTMLBodyElement* body = HTMLBodyElement::create(*document());
body->setAttribute(styleAttr, "margin: 0px;");
document()->willInsertBody();
HTMLDivElement* div = HTMLDivElement::create(*document());
// Style sheets for media controls are lazily loaded until a media element is
// encountered. As a result, elements encountered before the media element
// will not get the right style at first if we put the styles in
// mediacontrols.css. To solve this issue, set the styles inline so that they
// will be applied when the page loads. See w3c example on how to centering
// an element: https://www.w3.org/Style/Examples/007/center.en.html
div->setAttribute(styleAttr,
"display: flex;"
"flex-direction: column;"
"justify-content: center;"
"align-items: center;"
"min-height: min-content;"
"height: 100%;");
HTMLContentElement* content = HTMLContentElement::create(*document());
div->appendChild(content);
if (RuntimeEnabledFeatures::mediaDocumentDownloadButtonEnabled()) {
HTMLAnchorElement* anchor = HTMLAnchorElement::create(*document());
anchor->setAttribute(downloadAttr, "");
anchor->setURL(document()->url());
anchor->setTextContent(
document()
->getCachedLocale(document()->contentLanguage())
.queryString(WebLocalizedString::DownloadButtonLabel)
.upper());
// Using CSS style according to Android material design.
anchor->setAttribute(
styleAttr,
"display: inline-block;"
"margin-top: 32px;"
"padding: 0 16px 0 16px;"
"height: 36px;"
"background: #000000;"
"-webkit-tap-highlight-color: rgba(255, 255, 255, 0.12);"
"font-family: Roboto;"
"font-size: 14px;"
"border-radius: 5px;"
"color: white;"
"font-weight: 500;"
"text-decoration: none;"
"line-height: 36px;");
EventListener* listener = MediaDownloadEventListener::create();
anchor->addEventListener(EventTypeNames::click, listener, false);
HTMLDivElement* buttonContainer = HTMLDivElement::create(*document());
buttonContainer->setAttribute(styleAttr,
"text-align: center;"
"height: 0;"
"flex: none");
buttonContainer->appendChild(anchor);
div->appendChild(buttonContainer);
recordDownloadMetric(MediaDocumentDownloadButtonShown);
}
// According to
// https://html.spec.whatwg.org/multipage/browsers.html#read-media,
// MediaDocument should have a single child which is the video element. Use
// shadow root to hide all the elements we added here.
ShadowRoot& shadowRoot = body->ensureUserAgentShadowRoot();
shadowRoot.appendChild(div);
body->appendChild(media);
rootElement->appendChild(head);
rootElement->appendChild(body);
m_didBuildDocumentStructure = true;
}
bool
HTMLImageElement::TryCreateResponsiveSelector(nsIContent *aSourceNode,
const nsAString *aSrcset,
const nsAString *aSizes)
{
if (!IsSrcsetEnabled()) {
return false;
}
bool pictureEnabled = HTMLPictureElement::IsPictureEnabled();
// Skip if this is not a <source> with matching media query
bool isSourceTag = aSourceNode->Tag() == nsGkAtoms::source;
if (isSourceTag) {
DebugOnly<nsINode *> parent(nsINode::GetParentNode());
MOZ_ASSERT(parent && parent->Tag() == nsGkAtoms::picture);
MOZ_ASSERT(IsPreviousSibling(aSourceNode, this));
MOZ_ASSERT(pictureEnabled);
// Check media and type
HTMLSourceElement *src = static_cast<HTMLSourceElement*>(aSourceNode);
if (!src->MatchesCurrentMedia()) {
return false;
}
nsAutoString type;
if (aSourceNode->GetAttr(kNameSpaceID_None, nsGkAtoms::type, type) &&
!imgLoader::SupportImageWithMimeType(
NS_ConvertUTF16toUTF8(type).get(),
AcceptedMimeTypes::IMAGES_AND_DOCUMENTS)
) {
return false;
}
} else if (aSourceNode->Tag() == nsGkAtoms::img) {
// Otherwise this is the <img> tag itself
MOZ_ASSERT(aSourceNode == this);
}
// Skip if has no srcset or an empty srcset
nsString srcset;
if (aSrcset) {
srcset = *aSrcset;
} else if (!aSourceNode->GetAttr(kNameSpaceID_None, nsGkAtoms::srcset,
srcset)) {
return false;
}
if (srcset.IsEmpty()) {
return false;
}
// Try to parse
nsRefPtr<ResponsiveImageSelector> sel = new ResponsiveImageSelector(aSourceNode);
if (!sel->SetCandidatesFromSourceSet(srcset)) {
// No possible candidates, don't need to bother parsing sizes
return false;
}
if (pictureEnabled && aSizes) {
sel->SetSizesFromDescriptor(*aSizes);
} else if (pictureEnabled) {
nsAutoString sizes;
aSourceNode->GetAttr(kNameSpaceID_None, nsGkAtoms::sizes, sizes);
sel->SetSizesFromDescriptor(sizes);
}
// If this is the <img> tag, also pull in src as the default source
if (!isSourceTag) {
MOZ_ASSERT(aSourceNode == this);
nsAutoString src;
if (GetAttr(kNameSpaceID_None, nsGkAtoms::src, src) && !src.IsEmpty()) {
sel->SetDefaultSource(src);
}
}
mResponsiveSelector = sel;
return true;
}
void setJSHTMLSourceElementType(ExecState* exec, JSObject* thisObject, JSValue value)
{
HTMLSourceElement* imp = static_cast<HTMLSourceElement*>(static_cast<JSHTMLSourceElement*>(thisObject)->impl());
imp->setType(value.toString(exec));
}
