void
nsMutationReceiver::ContentInserted(nsIDocument* aDocument,
nsIContent* aContainer,
nsIContent* aChild,
int32_t aIndexInContainer)
{
nsINode* parent = NODE_FROM(aContainer, aDocument);
bool wantsChildList = ChildList() && (Subtree() || parent == Target());
if (!wantsChildList || aChild->ChromeOnlyAccess()) {
return;
}
if (nsAutoMutationBatch::IsBatching()) {
if (parent == nsAutoMutationBatch::GetBatchTarget()) {
nsAutoMutationBatch::UpdateObserver(Observer(), wantsChildList);
}
return;
}
nsDOMMutationRecord* m =
Observer()->CurrentRecord(NS_LITERAL_STRING("childList"));
if (m->mTarget) {
// Already handled case.
return;
}
m->mTarget = parent;
m->mAddedNodes = new nsSimpleContentList(parent);
m->mAddedNodes->AppendElement(aChild);
m->mPreviousSibling = aChild->GetPreviousSibling();
m->mNextSibling = aChild->GetNextSibling();
}
void
nsTextStateManager::ContentRemoved(nsIDocument* aDocument,
nsIContent* aContainer,
nsIContent* aChild,
PRInt32 aIndexInContainer,
nsIContent* aPreviousSibling)
{
PRUint32 offset = 0, childOffset = 1;
if (NS_FAILED(nsContentEventHandler::GetFlatTextOffsetOfRange(
mRootContent, NODE_FROM(aContainer, aDocument),
aIndexInContainer, &offset)))
return;
// get offset at the end of the deleted node
if (aChild->IsNodeOfType(nsINode::eTEXT))
childOffset = aChild->TextLength();
else if (0 < aChild->GetChildCount())
childOffset = aChild->GetChildCount();
if (NS_FAILED(nsContentEventHandler::GetFlatTextOffsetOfRange(
aChild, aChild, childOffset, &childOffset)))
return;
// fire notification
if (childOffset)
nsContentUtils::AddScriptRunner(
new TextChangeEvent(mWidget, offset, offset + childOffset, offset));
}
void
IMEContentObserver::ContentInserted(nsIDocument* aDocument,
nsIContent* aContainer,
nsIContent* aChild,
int32_t aIndexInContainer)
{
NotifyContentAdded(NODE_FROM(aContainer, aDocument),
aIndexInContainer, aIndexInContainer + 1);
}
void
nsTextStateManager::ContentInserted(nsIDocument* aDocument,
nsIContent* aContainer,
nsIContent* aChild,
PRInt32 aIndexInContainer)
{
NotifyContentAdded(NODE_FROM(aContainer, aDocument),
aIndexInContainer, aIndexInContainer + 1);
}
void
IMEContentObserver::ContentRemoved(nsIDocument* aDocument,
nsIContent* aContainer,
nsIContent* aChild,
int32_t aIndexInContainer,
nsIContent* aPreviousSibling)
{
mEndOfAddedTextCache.Clear();
bool causedByComposition = IsEditorHandlingEventForComposition();
if (!mTextChangeData.IsValid() && causedByComposition &&
!mUpdatePreference.WantChangesCausedByComposition()) {
return;
}
nsINode* containerNode = NODE_FROM(aContainer, aDocument);
uint32_t offset = 0;
nsresult rv = NS_OK;
if (!mStartOfRemovingTextRangeCache.Match(containerNode, aIndexInContainer)) {
rv =
ContentEventHandler::GetFlatTextOffsetOfRange(mRootContent, containerNode,
aIndexInContainer, &offset,
LINE_BREAK_TYPE_NATIVE);
if (NS_WARN_IF(NS_FAILED(rv))) {
mStartOfRemovingTextRangeCache.Clear();
return;
}
mStartOfRemovingTextRangeCache.Cache(containerNode, aIndexInContainer,
offset);
} else {
offset = mStartOfRemovingTextRangeCache.mFlatTextLength;
}
// get offset at the end of the deleted node
int32_t nodeLength =
aChild->IsNodeOfType(nsINode::eTEXT) ?
static_cast<int32_t>(aChild->TextLength()) :
std::max(static_cast<int32_t>(aChild->GetChildCount()), 1);
MOZ_ASSERT(nodeLength >= 0, "The node length is out of range");
uint32_t textLength = 0;
rv = ContentEventHandler::GetFlatTextOffsetOfRange(aChild, aChild,
nodeLength, &textLength,
LINE_BREAK_TYPE_NATIVE);
if (NS_WARN_IF(NS_FAILED(rv))) {
mStartOfRemovingTextRangeCache.Clear();
return;
}
if (!textLength) {
return;
}
TextChangeData data(offset, offset + textLength, offset, causedByComposition);
MaybeNotifyIMEOfTextChange(data);
}
void nsNodeIterator::ContentRemoved(nsIDocument *aDocument,
nsIContent *aContainer,
nsIContent *aChild,
int32_t aIndexInContainer,
nsIContent *aPreviousSibling)
{
nsINode *container = NODE_FROM(aContainer, aDocument);
mPointer.AdjustAfterRemoval(mRoot, container, aChild, aPreviousSibling);
mWorkingPointer.AdjustAfterRemoval(mRoot, container, aChild, aPreviousSibling);
}
nsresult
nsDOMDocumentType::BindToTree(nsIDocument *aDocument, nsIContent *aParent,
nsIContent *aBindingParent,
PRBool aCompileEventHandlers)
{
if (!HasSameOwnerDoc(NODE_FROM(aParent, aDocument))) {
NS_ASSERTION(!GetOwnerDoc(), "Need to adopt or import first!");
// DocumentType nodes are the only nodes that can have a null ownerDocument
// according to the DOM spec, so we need to give them a new nodeinfo in that
// case.
// XXX We may want to move this to nsDOMImplementation::CreateDocument if
// we want to rely on the nodeinfo and wrappers being right before
// getting into ReplaceOrInsertBefore or doInsertChildAt. That would
// break inserting DOMDocumentType nodes through other DOM methods
// though.
nsNodeInfoManager *nimgr = aParent ?
aParent->NodeInfo()->NodeInfoManager() :
aDocument->NodeInfoManager();
nsCOMPtr<nsINodeInfo> newNodeInfo;
newNodeInfo = nimgr->GetNodeInfo(mNodeInfo->NameAtom(),
mNodeInfo->GetPrefixAtom(),
mNodeInfo->NamespaceID());
NS_ENSURE_TRUE(newNodeInfo, NS_ERROR_OUT_OF_MEMORY);
mNodeInfo.swap(newNodeInfo);
JSObject *oldScope = GetWrapper();
if (oldScope) {
nsIXPConnect *xpc = nsContentUtils::XPConnect();
JSContext *cx = nsnull;
JSObject *newScope = nsnull;
nsresult rv = nsContentUtils::GetContextAndScope(nsnull,
nimgr->GetDocument(),
&cx, &newScope);
if (cx && xpc) {
nsISupports *node = NS_ISUPPORTS_CAST(nsIContent*, this);
nsCOMPtr<nsIXPConnectJSObjectHolder> oldWrapper;
rv = xpc->ReparentWrappedNativeIfFound(cx, oldScope, newScope, node,
getter_AddRefs(oldWrapper));
}
if (NS_FAILED(rv)) {
mNodeInfo.swap(newNodeInfo);
return rv;
}
}
void
nsContentList::ContentRemoved(nsIDocument *aDocument,
nsIContent* aContainer,
nsIContent* aChild,
PRInt32 aIndexInContainer)
{
// Note that aContainer can be null here if we are removing from
// the document itself; any attempted optimizations to this method
// should deal with that.
if (mState != LIST_DIRTY &&
MayContainRelevantNodes(NODE_FROM(aContainer, aDocument)) &&
nsContentUtils::IsInSameAnonymousTree(mRootNode, aChild) &&
MatchSelf(aChild)) {
SetDirty();
}
ASSERT_IN_SYNC;
}
void
nsMutationReceiver::ContentAppended(nsIDocument* aDocument,
nsIContent* aContainer,
nsIContent* aFirstNewContent,
int32_t aNewIndexInContainer)
{
nsINode* parent = NODE_FROM(aContainer, aDocument);
bool wantsChildList =
ChildList() &&
((Subtree() && RegisterTarget()->SubtreeRoot() == parent->SubtreeRoot()) ||
parent == Target());
if (!wantsChildList || !IsObservable(aFirstNewContent)) {
return;
}
if (nsAutoMutationBatch::IsBatching()) {
if (parent == nsAutoMutationBatch::GetBatchTarget()) {
nsAutoMutationBatch::UpdateObserver(Observer(), wantsChildList);
}
return;
}
nsDOMMutationRecord* m =
Observer()->CurrentRecord(nsGkAtoms::childList);
NS_ASSERTION(!m->mTarget || m->mTarget == parent,
"Wrong target!");
if (m->mTarget) {
// Already handled case.
return;
}
m->mTarget = parent;
m->mAddedNodes = new nsSimpleContentList(parent);
nsINode* n = aFirstNewContent;
while (n) {
m->mAddedNodes->AppendElement(static_cast<nsIContent*>(n));
n = n->GetNextSibling();
}
m->mPreviousSibling = aFirstNewContent->GetPreviousSibling();
}
void
nsMutationReceiver::ContentRemoved(nsIDocument* aDocument,
nsIContent* aContainer,
nsIContent* aChild,
int32_t aIndexInContainer,
nsIContent* aPreviousSibling)
{
if (aChild->ChromeOnlyAccess()) {
return;
}
nsINode* parent = NODE_FROM(aContainer, aDocument);
if (nsAutoMutationBatch::IsBatching()) {
if (nsAutoMutationBatch::IsRemovalDone()) {
// This can happen for example if HTML parser parses to
// context node, but needs to move elements around.
return;
}
if (nsAutoMutationBatch::GetBatchTarget() != parent) {
return;
}
bool wantsChildList = ChildList() && (Subtree() || parent == Target());
if (wantsChildList || Subtree()) {
nsAutoMutationBatch::NodeRemoved(aChild);
nsAutoMutationBatch::UpdateObserver(Observer(), wantsChildList);
}
return;
}
if (Subtree()) {
// Try to avoid creating transient observer if the node
// already has an observer observing the same set of nodes.
nsMutationReceiver* orig = GetParent() ? GetParent() : this;
if (Observer()->GetReceiverFor(aChild, false) != orig) {
bool transientExists = false;
nsCOMArray<nsMutationReceiver>* transientReceivers = nullptr;
Observer()->mTransientReceivers.Get(aChild, &transientReceivers);
if (!transientReceivers) {
transientReceivers = new nsCOMArray<nsMutationReceiver>();
Observer()->mTransientReceivers.Put(aChild, transientReceivers);
} else {
for (int32_t i = 0; i < transientReceivers->Count(); ++i) {
nsMutationReceiver* r = transientReceivers->ObjectAt(i);
if (r->GetParent() == orig) {
transientExists = true;
}
}
}
if (!transientExists) {
// Make sure the elements which are removed from the
// subtree are kept in the same observation set.
transientReceivers->AppendObject(new nsMutationReceiver(aChild, orig));
}
}
}
if (ChildList() && (Subtree() || parent == Target())) {
nsDOMMutationRecord* m =
Observer()->CurrentRecord(NS_LITERAL_STRING("childList"));
if (m->mTarget) {
// Already handled case.
return;
}
m->mTarget = parent;
m->mRemovedNodes = new nsSimpleContentList(parent);
m->mRemovedNodes->AppendElement(aChild);
m->mPreviousSibling = aPreviousSibling;
m->mNextSibling = parent->GetChildAt(aIndexInContainer);
}
// We need to schedule always, so that after microtask mTransientReceivers
// can be cleared correctly.
Observer()->ScheduleForRun();
}
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;
}
