TextTrackManager::TextTrackManager(HTMLMediaElement *aMediaElement)
: mMediaElement(aMediaElement)
, mHasSeeked(false)
, mLastTimeMarchesOnCalled(0.0)
, mTimeMarchesOnDispatched(false)
, performedTrackSelection(false)
, mShutdown(false)
{
nsISupports* parentObject =
mMediaElement->OwnerDoc()->GetParentObject();
NS_ENSURE_TRUE_VOID(parentObject);
nsCOMPtr<nsPIDOMWindowInner> window = do_QueryInterface(parentObject);
mNewCues = new TextTrackCueList(window);
mLastActiveCues = new TextTrackCueList(window);
mTextTracks = new TextTrackList(window, this);
mPendingTextTracks = new TextTrackList(window, this);
if (!sParserWrapper) {
nsCOMPtr<nsIWebVTTParserWrapper> parserWrapper =
do_CreateInstance(NS_WEBVTTPARSERWRAPPER_CONTRACTID);
sParserWrapper = parserWrapper;
ClearOnShutdown(&sParserWrapper);
}
mShutdownProxy = new ShutdownObserverProxy(this);
}
void
Attr::GetTextContentInternal(nsAString& aTextContent)
{
OwnerDoc()->WarnOnceAbout(nsIDocument::eTextContent);
GetValue(aTextContent);
}
void
Attr::GetNodeValueInternal(nsAString& aNodeValue)
{
OwnerDoc()->WarnOnceAbout(nsIDocument::eNodeValue);
GetValue(aNodeValue);
}
void
Attr::SetNodeValueInternal(const nsAString& aNodeValue, ErrorResult& aError)
{
OwnerDoc()->WarnOnceAbout(nsIDocument::eNodeValue);
aError = SetValue(aNodeValue);
}
nsresult
HTMLLinkElement::UnsetAttr(int32_t aNameSpaceID, nsIAtom* aAttribute,
bool aNotify)
{
nsresult rv = nsGenericHTMLElement::UnsetAttr(aNameSpaceID, aAttribute,
aNotify);
// Since removing href or rel makes us no longer link to a
// stylesheet, force updates for those too.
if (NS_SUCCEEDED(rv) && aNameSpaceID == kNameSpaceID_None) {
if (aAttribute == nsGkAtoms::href ||
aAttribute == nsGkAtoms::rel ||
aAttribute == nsGkAtoms::title ||
aAttribute == nsGkAtoms::media ||
aAttribute == nsGkAtoms::type) {
UpdateStyleSheetInternal(nullptr, nullptr, true);
}
if (aAttribute == nsGkAtoms::href ||
aAttribute == nsGkAtoms::rel) {
UpdateImport();
}
}
// The ordering of the parent class's UnsetAttr call and Link::ResetLinkState
// is important here! The attribute is not unset until UnsetAttr returns, and
// we will need the updated attribute value because notifying the document
// that content states have changed will call IntrinsicState, which will try
// to get updated information about the visitedness from Link.
if (aAttribute == nsGkAtoms::href && kNameSpaceID_None == aNameSpaceID) {
Link::ResetLinkState(!!aNotify, false);
CreateAndDispatchEvent(OwnerDoc(), NS_LITERAL_STRING("DOMLinkChanged"));
}
return rv;
}
void
HTMLTrackElement::CreateTextTrack()
{
nsString label, srcLang;
GetSrclang(srcLang);
GetLabel(label);
TextTrackKind kind;
if (const nsAttrValue* value = GetParsedAttr(nsGkAtoms::kind)) {
kind = static_cast<TextTrackKind>(value->GetEnumValue());
} else {
kind = TextTrackKind::Subtitles;
}
nsISupports* parentObject =
OwnerDoc()->GetParentObject();
NS_ENSURE_TRUE_VOID(parentObject);
nsCOMPtr<nsPIDOMWindowInner> window = do_QueryInterface(parentObject);
mTrack = new TextTrack(window, kind, label, srcLang,
TextTrackMode::Disabled,
TextTrackReadyState::NotLoaded,
TextTrackSource::Track);
mTrack->SetTrackElement(this);
if (mMediaParent) {
mMediaParent->AddTextTrack(mTrack);
}
}
void
nsMappedAttributeElement::NodeInfoChanged(nsIDocument* aOldDoc)
{
nsHTMLStyleSheet* sheet = OwnerDoc()->GetAttributeStyleSheet();
mAttrs.SetMappedAttrStyleSheet(sheet);
nsMappedAttributeElementBase::NodeInfoChanged(aOldDoc);
}
TextTrackManager::TextTrackManager(HTMLMediaElement *aMediaElement)
: mMediaElement(aMediaElement)
{
MOZ_COUNT_CTOR(TextTrackManager);
mNewCues = new TextTrackCueList(mMediaElement->OwnerDoc()->GetParentObject());
mTextTracks = new TextTrackList(mMediaElement->OwnerDoc()->GetParentObject(),
this);
mPendingTextTracks =
new TextTrackList(mMediaElement->OwnerDoc()->GetParentObject(), this);
if (!sParserWrapper) {
nsCOMPtr<nsIWebVTTParserWrapper> parserWrapper =
do_CreateInstance(NS_WEBVTTPARSERWRAPPER_CONTRACTID);
sParserWrapper = parserWrapper;
ClearOnShutdown(&sParserWrapper);
}
}
void
Attr::SetTextContentInternal(const nsAString& aTextContent,
ErrorResult& aError)
{
OwnerDoc()->WarnOnceAbout(nsIDocument::eTextContent);
SetNodeValueInternal(aTextContent, aError);
}
bool
nsMappedAttributeElement::SetMappedAttribute(nsIAtom* aName,
nsAttrValue& aValue,
nsresult* aRetval)
{
nsHTMLStyleSheet* sheet = OwnerDoc()->GetAttributeStyleSheet();
*aRetval = mAttrsAndChildren.SetAndTakeMappedAttr(aName, aValue,
this, sheet);
return true;
}
void
HTMLTrackElement::DispatchTrustedEvent(const nsAString& aName)
{
nsIDocument* doc = OwnerDoc();
if (!doc) {
return;
}
nsContentUtils::DispatchTrustedEvent(doc, static_cast<nsIContent*>(this),
aName, false, false);
}
nsresult
HTMLLinkElement::SetAttr(int32_t aNameSpaceID, nsIAtom* aName,
nsIAtom* aPrefix, const nsAString& aValue,
bool aNotify)
{
nsresult rv = nsGenericHTMLElement::SetAttr(aNameSpaceID, aName, aPrefix,
aValue, aNotify);
// The ordering of the parent class's SetAttr call and Link::ResetLinkState
// is important here! The attribute is not set until SetAttr returns, and
// we will need the updated attribute value because notifying the document
// that content states have changed will call IntrinsicState, which will try
// to get updated information about the visitedness from Link.
if (aName == nsGkAtoms::href && kNameSpaceID_None == aNameSpaceID) {
Link::ResetLinkState(!!aNotify, true);
if (IsInUncomposedDoc()) {
CreateAndDispatchEvent(OwnerDoc(), NS_LITERAL_STRING("DOMLinkChanged"));
}
}
if (NS_SUCCEEDED(rv) && aNameSpaceID == kNameSpaceID_None &&
(aName == nsGkAtoms::href ||
aName == nsGkAtoms::rel ||
aName == nsGkAtoms::title ||
aName == nsGkAtoms::media ||
aName == nsGkAtoms::type)) {
bool dropSheet = false;
if (aName == nsGkAtoms::rel) {
uint32_t linkTypes = nsStyleLinkElement::ParseLinkTypes(aValue,
NodePrincipal());
if (GetSheet()) {
dropSheet = !(linkTypes & nsStyleLinkElement::eSTYLESHEET);
} else if (linkTypes & eHTMLIMPORT) {
UpdateImport();
} else if ((linkTypes & ePRECONNECT) && IsInComposedDoc()) {
UpdatePreconnect();
}
}
if (aName == nsGkAtoms::href) {
UpdateImport();
if (IsInComposedDoc()) {
UpdatePreconnect();
}
}
UpdateStyleSheetInternal(nullptr, nullptr,
dropSheet ||
(aName == nsGkAtoms::title ||
aName == nsGkAtoms::media ||
aName == nsGkAtoms::type));
}
return rv;
}
void HTMLVideoElement::CreateVideoWakeLockIfNeeded() {
if (!mScreenWakeLock && ShouldCreateVideoWakeLock()) {
RefPtr<power::PowerManagerService> pmService =
power::PowerManagerService::GetInstance();
NS_ENSURE_TRUE_VOID(pmService);
ErrorResult rv;
mScreenWakeLock = pmService->NewWakeLock(NS_LITERAL_STRING("video-playing"),
OwnerDoc()->GetInnerWindow(), rv);
}
}
TextTrack*
HTMLTrackElement::Track()
{
if (!mTrack) {
// We're expected to always have an internal TextTrack so create
// an empty object to return if we don't already have one.
mTrack = new TextTrack(OwnerDoc()->GetParentObject());
}
return mTrack;
}
bool
nsMappedAttributeElement::SetAndSwapMappedAttribute(nsAtom* aName,
nsAttrValue& aValue,
bool* aValueWasSet,
nsresult* aRetval)
{
nsHTMLStyleSheet* sheet = OwnerDoc()->GetAttributeStyleSheet();
*aRetval = mAttrs.SetAndSwapMappedAttr(aName, aValue,
this, sheet, aValueWasSet);
return true;
}
void
SVGAnimationElement::UpdateHrefTarget(nsIContent* aNodeForContext,
const nsAString& aHrefStr)
{
nsCOMPtr<nsIURI> targetURI;
nsCOMPtr<nsIURI> baseURI = GetBaseURI();
nsContentUtils::NewURIWithDocumentCharset(getter_AddRefs(targetURI),
aHrefStr, OwnerDoc(), baseURI);
mHrefTarget.Reset(aNodeForContext, targetURI);
AnimationTargetChanged();
}
void
nsDOMCSSAttributeDeclaration::GetCSSParsingEnvironment(CSSParsingEnvironment& aCSSParseEnv)
{
NS_ASSERTION(mElement, "Something is severely broken -- there should be an Element here!");
nsIDocument* doc = mElement->OwnerDoc();
aCSSParseEnv.mSheetURI = doc->GetDocumentURI();
aCSSParseEnv.mBaseURI = mElement->GetBaseURI();
aCSSParseEnv.mPrincipal = mElement->NodePrincipal();
aCSSParseEnv.mCSSLoader = doc->CSSLoader();
}
void
HTMLVideoElement::WakeLockUpdate()
{
bool hidden = OwnerDoc()->Hidden();
if (mScreenWakeLock && (mPaused || hidden)) {
mScreenWakeLock->Unlock();
mScreenWakeLock = nullptr;
return;
}
if (!mScreenWakeLock && !mPaused && !hidden) {
nsCOMPtr<nsIPowerManagerService> pmService =
do_GetService(POWERMANAGERSERVICE_CONTRACTID);
NS_ENSURE_TRUE_VOID(pmService);
pmService->NewWakeLock(NS_LITERAL_STRING("screen"),
OwnerDoc()->GetWindow(),
getter_AddRefs(mScreenWakeLock));
}
}
void
HTMLSharedObjectElement::StartObjectLoad(bool aNotify)
{
// BindToTree can call us asynchronously, and we may be removed from the tree
// in the interim
if (!IsInComposedDoc() || !OwnerDoc()->IsActive()) {
return;
}
LoadObject(aNotify);
SetIsNetworkCreated(false);
}
uint32_t HTMLVideoElement::MozDecodedFrames() const {
MOZ_ASSERT(NS_IsMainThread(), "Should be on main thread.");
if (!IsVideoStatsEnabled()) {
return 0;
}
if (nsContentUtils::ShouldResistFingerprinting(OwnerDoc())) {
return nsRFPService::GetSpoofedTotalFrames(TotalPlayTime());
}
return mDecoder ? mDecoder->GetFrameStatistics().GetDecodedFrames() : 0;
}
bool
SVGAElement::IsLink(nsIURI** aURI) const
{
// To be a clickable XLink for styling and interaction purposes, we require:
//
// xlink:href - must be set
// xlink:type - must be unset or set to "" or set to "simple"
// xlink:show - must be unset or set to "", "new" or "replace"
// xlink:actuate - must be unset or set to "" or "onRequest"
//
// For any other values, we're either not a *clickable* XLink, or the end
// result is poorly specified. Either way, we return false.
static nsIContent::AttrValuesArray sTypeVals[] =
{ &nsGkAtoms::_empty, &nsGkAtoms::simple, nullptr };
static nsIContent::AttrValuesArray sShowVals[] =
{ &nsGkAtoms::_empty, &nsGkAtoms::_new, &nsGkAtoms::replace, nullptr };
static nsIContent::AttrValuesArray sActuateVals[] =
{ &nsGkAtoms::_empty, &nsGkAtoms::onRequest, nullptr };
// Optimization: check for href first for early return
bool useXLink = !HasAttr(kNameSpaceID_None, nsGkAtoms::href);
const nsAttrValue* href =
useXLink
? mAttrsAndChildren.GetAttr(nsGkAtoms::href, kNameSpaceID_XLink)
: mAttrsAndChildren.GetAttr(nsGkAtoms::href, kNameSpaceID_None);
if (href &&
FindAttrValueIn(kNameSpaceID_XLink, nsGkAtoms::type,
sTypeVals, eCaseMatters) !=
nsIContent::ATTR_VALUE_NO_MATCH &&
FindAttrValueIn(kNameSpaceID_XLink, nsGkAtoms::show,
sShowVals, eCaseMatters) !=
nsIContent::ATTR_VALUE_NO_MATCH &&
FindAttrValueIn(kNameSpaceID_XLink, nsGkAtoms::actuate,
sActuateVals, eCaseMatters) !=
nsIContent::ATTR_VALUE_NO_MATCH) {
nsCOMPtr<nsIURI> baseURI = GetBaseURI();
// Get absolute URI
nsAutoString str;
const uint8_t idx = useXLink ? XLINK_HREF : HREF;
mStringAttributes[idx].GetAnimValue(str, this);
nsContentUtils::NewURIWithDocumentCharset(aURI, str, OwnerDoc(), baseURI);
// must promise out param is non-null if we return true
return !!*aURI;
}
*aURI = nullptr;
return false;
}
void
nsAccessNode::Language(nsAString& aLanguage)
{
aLanguage.Truncate();
if (IsDefunct())
return;
nsCoreUtils::GetLanguageFor(mContent, nsnull, aLanguage);
if (aLanguage.IsEmpty()) { // Nothing found, so use document's language
mContent->OwnerDoc()->GetHeaderData(nsGkAtoms::headerContentLanguage,
aLanguage);
}
}
void HTMLTextAreaElement::FireChangeEventIfNeeded() {
nsString value;
GetValueInternal(value, true);
if (mFocusedValue.Equals(value)) {
return;
}
// Dispatch the change event.
mFocusedValue = value;
nsContentUtils::DispatchTrustedEvent(
OwnerDoc(), static_cast<nsIContent*>(this), NS_LITERAL_STRING("change"),
CanBubble::eYes, Cancelable::eNo);
}
uint32_t HTMLVideoElement::MozPaintedFrames() {
MOZ_ASSERT(NS_IsMainThread(), "Should be on main thread.");
if (!IsVideoStatsEnabled()) {
return 0;
}
if (nsContentUtils::ShouldResistFingerprinting(OwnerDoc())) {
return nsRFPService::GetSpoofedPresentedFrames(TotalPlayTime(),
VideoWidth(), VideoHeight());
}
layers::ImageContainer* container = GetImageContainer();
return container ? container->GetPaintCount() : 0;
}
void TextTrackManager::DispatchUpdateCueDisplay() {
if (!mUpdateCueDisplayDispatched && !IsShutdown() &&
mMediaElement->IsCurrentlyPlaying()) {
WEBVTT_LOG("DispatchUpdateCueDisplay");
nsPIDOMWindowInner* win = mMediaElement->OwnerDoc()->GetInnerWindow();
if (win) {
nsGlobalWindowInner::Cast(win)->Dispatch(
TaskCategory::Other,
NewRunnableMethod("dom::TextTrackManager::UpdateCueDisplay", this,
&TextTrackManager::UpdateCueDisplay));
mUpdateCueDisplayDispatched = true;
}
}
}
void
HTMLTrackElement::LoadResource()
{
// Find our 'src' url
nsAutoString src;
if (!GetAttr(kNameSpaceID_None, nsGkAtoms::src, src)) {
return;
}
nsCOMPtr<nsIURI> uri;
nsresult rv = NewURIFromString(src, getter_AddRefs(uri));
NS_ENSURE_TRUE_VOID(NS_SUCCEEDED(rv));
LOG(LogLevel::Info, ("%p Trying to load from src=%s", this,
NS_ConvertUTF16toUTF8(src).get()));
if (mChannel) {
mChannel->Cancel(NS_BINDING_ABORTED);
mChannel = nullptr;
}
// We may already have a TextTrack at this point if GetTrack() has already
// been called. This happens, for instance, if script tries to get the
// TextTrack before its mTrackElement has been bound to the DOM tree.
if (!mTrack) {
CreateTextTrack();
}
nsCOMPtr<nsIChannel> channel;
nsCOMPtr<nsILoadGroup> loadGroup = OwnerDoc()->GetDocumentLoadGroup();
rv = NS_NewChannel(getter_AddRefs(channel),
uri,
static_cast<Element*>(this),
nsILoadInfo::SEC_ALLOW_CROSS_ORIGIN_DATA_INHERITS,
nsIContentPolicy::TYPE_INTERNAL_TRACK,
loadGroup);
NS_ENSURE_TRUE_VOID(NS_SUCCEEDED(rv));
mListener = new WebVTTListener(this);
rv = mListener->LoadResource();
NS_ENSURE_TRUE_VOID(NS_SUCCEEDED(rv));
channel->SetNotificationCallbacks(mListener);
LOG(LogLevel::Debug, ("opening webvtt channel"));
rv = channel->AsyncOpen2(mListener);
NS_ENSURE_TRUE_VOID(NS_SUCCEEDED(rv));
mChannel = channel;
}
void
HTMLVideoElement::UpdateScreenWakeLock()
{
bool hidden = OwnerDoc()->Hidden();
if (mScreenWakeLock && (mPaused || hidden)) {
ErrorResult rv;
mScreenWakeLock->Unlock(rv);
NS_WARN_IF_FALSE(!rv.Failed(), "Failed to unlock the wakelock.");
mScreenWakeLock = nullptr;
return;
}
if (!mScreenWakeLock && !mPaused && !hidden && HasVideo()) {
nsRefPtr<power::PowerManagerService> pmService =
power::PowerManagerService::GetInstance();
NS_ENSURE_TRUE_VOID(pmService);
ErrorResult rv;
mScreenWakeLock = pmService->NewWakeLock(NS_LITERAL_STRING("screen"),
OwnerDoc()->GetInnerWindow(),
rv);
}
}
void
SVGAnimationElement::UnbindFromTree(bool aDeep, bool aNullParent)
{
nsSMILAnimationController *controller = OwnerDoc()->GetAnimationController();
if (controller) {
controller->UnregisterAnimationElement(this);
}
mHrefTarget.Unlink();
mTimedElement.DissolveReferences();
AnimationNeedsResample();
SVGAnimationElementBase::UnbindFromTree(aDeep, aNullParent);
}
NS_IMETHODIMP
Attr::GetOwnerElement(nsIDOMElement** aOwnerElement)
{
NS_ENSURE_ARG_POINTER(aOwnerElement);
OwnerDoc()->WarnOnceAbout(nsIDocument::eOwnerElement);
Element* element = GetElement();
if (element) {
return CallQueryInterface(element, aOwnerElement);
}
*aOwnerElement = nullptr;
return NS_OK;
}
double HTMLVideoElement::MozFrameDelay() {
MOZ_ASSERT(NS_IsMainThread(), "Should be on main thread.");
if (!IsVideoStatsEnabled() ||
nsContentUtils::ShouldResistFingerprinting(OwnerDoc())) {
return 0.0;
}
VideoFrameContainer* container = GetVideoFrameContainer();
// Hide negative delays. Frame timing tweaks in the compositor (e.g.
// adding a bias value to prevent multiple dropped/duped frames when
// frame times are aligned with composition times) may produce apparent
// negative delay, but we shouldn't report that.
return container ? std::max(0.0, container->GetFrameDelay()) : 0.0;
}
