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;
}
nsresult
HTMLLinkElement::BindToTree(nsIDocument* aDocument, nsIContent* aParent,
nsIContent* aBindingParent,
bool aCompileEventHandlers)
{
Link::ResetLinkState(false, Link::ElementHasHref());
nsresult rv = nsGenericHTMLElement::BindToTree(aDocument, aParent,
aBindingParent,
aCompileEventHandlers);
NS_ENSURE_SUCCESS(rv, rv);
// Link must be inert in ShadowRoot.
if (aDocument && !GetContainingShadow()) {
aDocument->RegisterPendingLinkUpdate(this);
}
if (IsInComposedDoc()) {
UpdatePreconnect();
}
void (HTMLLinkElement::*update)() = &HTMLLinkElement::UpdateStyleSheetInternal;
nsContentUtils::AddScriptRunner(NS_NewRunnableMethod(this, update));
void (HTMLLinkElement::*updateImport)() = &HTMLLinkElement::UpdateImport;
nsContentUtils::AddScriptRunner(NS_NewRunnableMethod(this, updateImport));
CreateAndDispatchEvent(aDocument, NS_LITERAL_STRING("DOMLinkAdded"));
return rv;
}
void HTMLVideoElement::EndCloningVisually() {
MOZ_ASSERT(mVisualCloneTarget);
if (mDecoder) {
MediaDecoderStateMachine* mdsm = mDecoder->GetStateMachine();
if (mdsm) {
mdsm->SetSecondaryVideoContainer(nullptr);
mDecoder->SetCloningVisually(false);
}
} else if (mSrcStream) {
VideoFrameContainer* container =
mVisualCloneTarget->GetVideoFrameContainer();
if (container && mVisualCloneTarget->mSelectedVideoStreamTrack) {
mVisualCloneTarget->mSelectedVideoStreamTrack->RemoveVideoOutput(
container);
}
}
Unused << mVisualCloneTarget->SetVisualCloneSource(nullptr);
Unused << SetVisualCloneTarget(nullptr);
if (IsInComposedDoc() && !sCloneElementVisuallyTesting) {
NotifyUAWidgetSetupOrChange();
}
}
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);
}
nsresult HTMLMarqueeElement::AfterSetAttr(int32_t aNameSpaceID, nsAtom* aName,
const nsAttrValue* aValue,
const nsAttrValue* aOldValue,
nsIPrincipal* aMaybeScriptedPrincipal,
bool aNotify) {
if (IsInComposedDoc() && aNameSpaceID == kNameSpaceID_None &&
aName == nsGkAtoms::direction) {
NotifyUAWidgetSetupOrChange();
}
return nsGenericHTMLElement::AfterSetAttr(
aNameSpaceID, aName, aValue, aOldValue, aMaybeScriptedPrincipal, aNotify);
}
nsresult
HTMLObjectElement::UnsetAttr(int32_t aNameSpaceID, nsIAtom* aAttribute,
bool aNotify)
{
nsresult rv = nsGenericHTMLFormElement::UnsetAttr(aNameSpaceID,
aAttribute, aNotify);
NS_ENSURE_SUCCESS(rv, rv);
// See comment in SetAttr
if (aNotify && IsInComposedDoc() && mIsDoneAddingChildren &&
aNameSpaceID == kNameSpaceID_None && aAttribute == nsGkAtoms::data) {
return LoadObject(aNotify, true);
}
return NS_OK;
}
nsresult
HTMLAnchorElement::AfterSetAttr(int32_t aNamespaceID, nsAtom* aName,
const nsAttrValue* aValue,
const nsAttrValue* aOldValue,
nsIPrincipal* aSubjectPrincipal,
bool aNotify)
{
if (aNamespaceID == kNameSpaceID_None) {
if (aName == nsGkAtoms::href) {
Link::ResetLinkState(aNotify, !!aValue);
if (aValue && IsInComposedDoc()) {
TryDNSPrefetch();
}
}
}
return nsGenericHTMLElement::AfterSetAttr(aNamespaceID, aName,
aValue, aOldValue, aSubjectPrincipal, aNotify);
}
void HTMLVideoElement::CloneElementVisually(HTMLVideoElement& aTargetVideo,
ErrorResult& rv) {
MOZ_ASSERT(!mUnboundFromTree,
"Can't clone a video that's not bound to a DOM tree.");
MOZ_ASSERT(!aTargetVideo.mUnboundFromTree,
"Can't clone to a video that's not bound to a DOM tree.");
if (mUnboundFromTree || aTargetVideo.mUnboundFromTree) {
rv.Throw(NS_ERROR_UNEXPECTED);
return;
}
// Do we already have a visual clone target? If so, shut it down.
if (mVisualCloneTarget) {
EndCloningVisually();
}
// If there's a poster set on the target video, clear it, otherwise
// it'll display over top of the cloned frames.
aTargetVideo.UnsetHTMLAttr(nsGkAtoms::poster, rv);
if (rv.Failed()) {
return;
}
if (!SetVisualCloneTarget(&aTargetVideo)) {
rv.Throw(NS_ERROR_FAILURE);
return;
}
if (!aTargetVideo.SetVisualCloneSource(this)) {
mVisualCloneTarget = nullptr;
rv.Throw(NS_ERROR_FAILURE);
return;
}
aTargetVideo.SetMediaInfo(mMediaInfo);
if (IsInComposedDoc() && !sCloneElementVisuallyTesting) {
NotifyUAWidgetSetupOrChange();
}
MaybeBeginCloningVisually();
}
nsresult
HTMLSharedObjectElement::SetAttr(int32_t aNameSpaceID, nsIAtom *aName,
nsIAtom *aPrefix, const nsAString &aValue,
bool aNotify)
{
nsresult rv = nsGenericHTMLElement::SetAttr(aNameSpaceID, aName, aPrefix,
aValue, aNotify);
NS_ENSURE_SUCCESS(rv, rv);
// if aNotify is false, we are coming from the parser or some such place;
// we'll get bound after all the attributes have been set, so we'll do the
// object load from BindToTree/DoneAddingChildren.
// Skip the LoadObject call in that case.
// We also don't want to start loading the object when we're not yet in
// a document, just in case that the caller wants to set additional
// attributes before inserting the node into the document.
if (aNotify && IsInComposedDoc() && mIsDoneAddingChildren &&
aNameSpaceID == kNameSpaceID_None && aName == URIAttrName()) {
return LoadObject(aNotify, true);
}
return NS_OK;
}
void
HTMLImageElement::PictureSourceSrcsetChanged(nsIContent *aSourceNode,
const nsAString& aNewValue,
bool aNotify)
{
bool isSelf = aSourceNode == this;
if (!IsSrcsetEnabled() ||
(!isSelf && !HTMLPictureElement::IsPictureEnabled())) {
return;
}
MOZ_ASSERT(isSelf || IsPreviousSibling(aSourceNode, this),
"Should not be getting notifications for non-previous-siblings");
nsIContent *currentSrc =
mResponsiveSelector ? mResponsiveSelector->Content() : nullptr;
if (aSourceNode == currentSrc) {
// We're currently using this node as our responsive selector
// source.
mResponsiveSelector->SetCandidatesFromSourceSet(aNewValue);
}
if (!mInDocResponsiveContent && IsInComposedDoc()) {
nsIDocument* doc = GetOurOwnerDoc();
if (doc) {
doc->AddResponsiveContent(this);
mInDocResponsiveContent = true;
}
}
// This always triggers the image update steps per the spec, even if
// we are not using this source.
QueueImageLoadTask(true);
}
nsresult HTMLLinkElement::AfterSetAttr(int32_t aNameSpaceID, nsAtom* aName,
const nsAttrValue* aValue,
const nsAttrValue* aOldValue,
nsIPrincipal* aSubjectPrincipal,
bool aNotify) {
// It's safe to call ResetLinkState here because our new attr value has
// already been set or unset. ResetLinkState needs 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) {
bool hasHref = aValue;
Link::ResetLinkState(!!aNotify, hasHref);
if (IsInUncomposedDoc()) {
CreateAndDispatchEvent(OwnerDoc(), NS_LITERAL_STRING("DOMLinkChanged"));
}
}
if (aNameSpaceID == kNameSpaceID_None && aName == nsGkAtoms::href) {
mTriggeringPrincipal = nsContentUtils::GetAttrTriggeringPrincipal(
this, aValue ? aValue->GetStringValue() : EmptyString(),
aSubjectPrincipal);
}
// If a link's `rel` attribute was changed from or to `localization`,
// update the list of localization links.
if (aNameSpaceID == kNameSpaceID_None && aName == nsGkAtoms::rel) {
Document* doc = GetComposedDoc();
if (doc) {
if ((aValue && aValue->Equals(nsGkAtoms::localization, eIgnoreCase)) &&
(!aOldValue ||
!aOldValue->Equals(nsGkAtoms::localization, eIgnoreCase))) {
doc->LocalizationLinkAdded(this);
} else if ((aOldValue &&
aOldValue->Equals(nsGkAtoms::localization, eIgnoreCase)) &&
(!aValue ||
!aValue->Equals(nsGkAtoms::localization, eIgnoreCase))) {
doc->LocalizationLinkRemoved(this);
}
}
}
// If the link has `rel=localization` and its `href` attribute is changed,
// update the list of localization links.
if (aNameSpaceID == kNameSpaceID_None && aName == nsGkAtoms::href &&
AttrValueIs(kNameSpaceID_None, nsGkAtoms::rel, nsGkAtoms::localization,
eIgnoreCase)) {
Document* doc = GetComposedDoc();
if (doc) {
if (aOldValue) {
doc->LocalizationLinkRemoved(this);
}
if (aValue) {
doc->LocalizationLinkAdded(this);
}
}
}
if (aValue) {
if (aNameSpaceID == kNameSpaceID_None &&
(aName == nsGkAtoms::href || aName == nsGkAtoms::rel ||
aName == nsGkAtoms::title || aName == nsGkAtoms::media ||
aName == nsGkAtoms::type || aName == nsGkAtoms::as ||
aName == nsGkAtoms::crossorigin)) {
bool dropSheet = false;
if (aName == nsGkAtoms::rel) {
nsAutoString value;
aValue->ToString(value);
uint32_t linkTypes = nsStyleLinkElement::ParseLinkTypes(value);
if (GetSheet()) {
dropSheet = !(linkTypes & nsStyleLinkElement::eSTYLESHEET);
}
}
if ((aName == nsGkAtoms::rel || aName == nsGkAtoms::href) &&
IsInComposedDoc()) {
TryDNSPrefetchOrPreconnectOrPrefetchOrPreloadOrPrerender();
}
if ((aName == nsGkAtoms::as || aName == nsGkAtoms::type ||
aName == nsGkAtoms::crossorigin || aName == nsGkAtoms::media) &&
IsInComposedDoc()) {
UpdatePreload(aName, aValue, aOldValue);
}
const bool forceUpdate = dropSheet || aName == nsGkAtoms::title ||
aName == nsGkAtoms::media ||
aName == nsGkAtoms::type;
Unused << UpdateStyleSheetInternal(
nullptr, nullptr, forceUpdate ? ForceUpdate::Yes : ForceUpdate::No);
}
} else {
// Since removing href or rel makes us no longer link to a
// stylesheet, force updates for those too.
if (aNameSpaceID == kNameSpaceID_None) {
if (aName == nsGkAtoms::href || aName == nsGkAtoms::rel ||
aName == nsGkAtoms::title || aName == nsGkAtoms::media ||
aName == nsGkAtoms::type) {
Unused << UpdateStyleSheetInternal(nullptr, nullptr, ForceUpdate::Yes);
}
if ((aName == nsGkAtoms::as || aName == nsGkAtoms::type ||
aName == nsGkAtoms::crossorigin || aName == nsGkAtoms::media) &&
IsInComposedDoc()) {
UpdatePreload(aName, aValue, aOldValue);
}
}
}
return nsGenericHTMLElement::AfterSetAttr(
aNameSpaceID, aName, aValue, aOldValue, aSubjectPrincipal, aNotify);
}
nsresult CharacterData::BindToTree(Document* aDocument, nsIContent* aParent,
nsIContent* aBindingParent) {
MOZ_ASSERT(aParent || aDocument, "Must have document if no parent!");
MOZ_ASSERT(NODE_FROM(aParent, aDocument)->OwnerDoc() == OwnerDoc(),
"Must have the same owner document");
MOZ_ASSERT(!aParent || aDocument == aParent->GetUncomposedDoc(),
"aDocument must be current doc of aParent");
MOZ_ASSERT(!GetUncomposedDoc() && !IsInUncomposedDoc(),
"Already have a document. Unbind first!");
MOZ_ASSERT(!IsInComposedDoc(), "Already have a document. Unbind first!");
// Note that as we recurse into the kids, they'll have a non-null parent. So
// only assert if our parent is _changing_ while we have a parent.
MOZ_ASSERT(!GetParent() || aParent == GetParent(),
"Already have a parent. Unbind first!");
MOZ_ASSERT(!GetBindingParent() || aBindingParent == GetBindingParent() ||
(!aBindingParent && aParent &&
aParent->GetBindingParent() == GetBindingParent()),
"Already have a binding parent. Unbind first!");
MOZ_ASSERT(aBindingParent != this,
"Content must not be its own binding parent");
MOZ_ASSERT(!IsRootOfNativeAnonymousSubtree() || aBindingParent == aParent,
"Native anonymous content must have its parent as its "
"own binding parent");
if (!aBindingParent && aParent) {
aBindingParent = aParent->GetBindingParent();
}
// First set the binding parent
if (aBindingParent) {
NS_ASSERTION(IsRootOfNativeAnonymousSubtree() ||
!HasFlag(NODE_IS_IN_NATIVE_ANONYMOUS_SUBTREE) ||
(aParent && aParent->IsInNativeAnonymousSubtree()),
"Trying to re-bind content from native anonymous subtree to "
"non-native anonymous parent!");
ExtendedContentSlots()->mBindingParent =
aBindingParent; // Weak, so no addref happens.
if (aParent->IsInNativeAnonymousSubtree()) {
SetFlags(NODE_IS_IN_NATIVE_ANONYMOUS_SUBTREE);
}
if (aParent->HasFlag(NODE_HAS_BEEN_IN_UA_WIDGET)) {
SetFlags(NODE_HAS_BEEN_IN_UA_WIDGET);
}
if (HasFlag(NODE_IS_ANONYMOUS_ROOT)) {
aParent->SetMayHaveAnonymousChildren();
}
}
if (aParent && aParent->IsInShadowTree()) {
ClearSubtreeRootPointer();
SetFlags(NODE_IS_IN_SHADOW_TREE);
SetIsConnected(aParent->IsInComposedDoc());
MOZ_ASSERT(aParent->GetContainingShadow());
ExtendedContentSlots()->mContainingShadow = aParent->GetContainingShadow();
}
bool hadParent = !!GetParentNode();
// Set parent
if (aParent) {
if (!GetParent()) {
NS_ADDREF(aParent);
}
mParent = aParent;
} else {
mParent = aDocument;
}
SetParentIsContent(aParent);
// XXXbz sXBL/XBL2 issue!
// Set document
if (aDocument) {
// We no longer need to track the subtree pointer (and in fact we'll assert
// if we do this any later).
ClearSubtreeRootPointer();
// XXX See the comment in Element::BindToTree
SetIsInDocument();
SetIsConnected(true);
if (mText.IsBidi()) {
aDocument->SetBidiEnabled();
}
// Clear the lazy frame construction bits.
UnsetFlags(NODE_NEEDS_FRAME | NODE_DESCENDANTS_NEED_FRAMES);
} else if (!IsInShadowTree()) {
// If we're not in the doc and not in a shadow tree,
// update our subtree pointer.
SetSubtreeRootPointer(aParent->SubtreeRoot());
}
nsNodeUtils::ParentChainChanged(this);
if (!hadParent && IsRootOfNativeAnonymousSubtree()) {
nsNodeUtils::NativeAnonymousChildListChange(this, false);
}
UpdateEditableState(false);
MOZ_ASSERT(aDocument == GetUncomposedDoc(), "Bound to wrong document");
MOZ_ASSERT(aParent == GetParent(), "Bound to wrong parent");
MOZ_ASSERT(aBindingParent == GetBindingParent(),
"Bound to wrong binding parent");
return NS_OK;
}
nsresult
HTMLLinkElement::AfterSetAttr(int32_t aNameSpaceID, nsIAtom* aName,
const nsAttrValue* aValue, bool aNotify)
{
// It's safe to call ResetLinkState here because our new attr value has
// already been set or unset. ResetLinkState needs 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) {
bool hasHref = aValue;
Link::ResetLinkState(!!aNotify, hasHref);
if (IsInUncomposedDoc()) {
CreateAndDispatchEvent(OwnerDoc(), NS_LITERAL_STRING("DOMLinkChanged"));
}
}
if (aValue) {
if (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) {
nsAutoString value;
aValue->ToString(value);
uint32_t linkTypes = nsStyleLinkElement::ParseLinkTypes(value,
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));
}
} else {
// Since removing href or rel makes us no longer link to a
// stylesheet, force updates for those too.
if (aNameSpaceID == kNameSpaceID_None) {
if (aName == nsGkAtoms::href ||
aName == nsGkAtoms::rel ||
aName == nsGkAtoms::title ||
aName == nsGkAtoms::media ||
aName == nsGkAtoms::type) {
UpdateStyleSheetInternal(nullptr, nullptr, true);
}
if (aName == nsGkAtoms::href ||
aName == nsGkAtoms::rel) {
UpdateImport();
}
}
}
return nsGenericHTMLElement::AfterSetAttr(aNameSpaceID, aName, aValue,
aNotify);
}
