NS_IMETHODIMP
nsHtml5Parser::ParseFragment(const nsAString& aSourceBuffer,
nsIContent* aTargetNode,
nsIAtom* aContextLocalName,
PRInt32 aContextNamespace,
PRBool aQuirks)
{
nsIDocument* doc = aTargetNode->GetOwnerDoc();
NS_ENSURE_TRUE(doc, NS_ERROR_NOT_AVAILABLE);
nsIURI* uri = doc->GetDocumentURI();
NS_ENSURE_TRUE(uri, NS_ERROR_NOT_AVAILABLE);
Initialize(doc, uri, nsnull, nsnull);
mExecutor->SetParser(this);
mExecutor->SetNodeInfoManager(doc->NodeInfoManager());
nsIContent* target = aTargetNode;
mTreeBuilder->setFragmentContext(aContextLocalName,
aContextNamespace,
&target,
aQuirks);
mExecutor->EnableFragmentMode();
NS_PRECONDITION(!mExecutor->HasStarted(),
"Tried to start parse without initializing the parser.");
mTreeBuilder->setScriptingEnabled(mExecutor->IsScriptEnabled());
mTokenizer->start();
mExecutor->Start(); // Don't call WillBuildModel in fragment case
if (!aSourceBuffer.IsEmpty()) {
PRBool lastWasCR = PR_FALSE;
nsHtml5UTF16Buffer buffer(aSourceBuffer.Length());
memcpy(buffer.getBuffer(),
aSourceBuffer.BeginReading(),
aSourceBuffer.Length() * sizeof(PRUnichar));
buffer.setEnd(aSourceBuffer.Length());
while (buffer.hasMore()) {
buffer.adjust(lastWasCR);
lastWasCR = PR_FALSE;
if (buffer.hasMore()) {
lastWasCR = mTokenizer->tokenizeBuffer(&buffer);
}
}
}
mTokenizer->eof();
mTreeBuilder->StreamEnded();
mTreeBuilder->Flush();
mExecutor->FlushDocumentWrite();
mTokenizer->end();
mExecutor->DropParserAndPerfHint();
mExecutor->DropHeldElements();
mAtomTable.Clear();
return NS_OK;
}
nsresult
nsHtml5Parser::ParseHtml5Fragment(const nsAString& aSourceBuffer,
nsIContent* aTargetNode,
nsIAtom* aContextLocalName,
PRInt32 aContextNamespace,
bool aQuirks,
bool aPreventScriptExecution)
{
NS_ENSURE_TRUE(aSourceBuffer.Length() <= PR_INT32_MAX,
NS_ERROR_OUT_OF_MEMORY);
nsIDocument* doc = aTargetNode->OwnerDoc();
nsIURI* uri = doc->GetDocumentURI();
NS_ENSURE_TRUE(uri, NS_ERROR_NOT_AVAILABLE);
mExecutor->EnableFragmentMode(aPreventScriptExecution);
Initialize(doc, uri, nsnull, nsnull);
mExecutor->SetParser(this);
mExecutor->SetNodeInfoManager(doc->NodeInfoManager());
nsIContent* target = aTargetNode;
mTreeBuilder->setFragmentContext(aContextLocalName,
aContextNamespace,
&target,
aQuirks);
#ifdef DEBUG
if (!aPreventScriptExecution) {
NS_ASSERTION(!aTargetNode->IsInDoc(),
"If script execution isn't prevented, "
"the target node must not be in doc.");
nsCOMPtr<nsIDOMDocumentFragment> domFrag = do_QueryInterface(aTargetNode);
NS_ASSERTION(domFrag,
"If script execution isn't prevented, must parse to DOM fragment.");
}
#endif
NS_PRECONDITION(!mExecutor->HasStarted(),
"Tried to start parse without initializing the parser.");
mTreeBuilder->setScriptingEnabled(mExecutor->IsScriptEnabled());
mTokenizer->start();
mExecutor->Start(); // Don't call WillBuildModel in fragment case
if (!aSourceBuffer.IsEmpty()) {
bool lastWasCR = false;
nsHtml5DependentUTF16Buffer buffer(aSourceBuffer);
while (buffer.hasMore()) {
buffer.adjust(lastWasCR);
lastWasCR = false;
if (buffer.hasMore()) {
lastWasCR = mTokenizer->tokenizeBuffer(&buffer);
if (mTreeBuilder->HasScript()) {
// Flush on each script, because the execution prevention code
// can handle at most one script per flush.
mTreeBuilder->Flush(); // Move ops to the executor
mExecutor->FlushDocumentWrite(); // run the ops
}
}
}
}
mTokenizer->eof();
mTreeBuilder->StreamEnded();
mTreeBuilder->Flush();
mExecutor->FlushDocumentWrite();
mTokenizer->end();
mExecutor->DropParserAndPerfHint();
mExecutor->DropHeldElements();
mTreeBuilder->DropHandles();
mAtomTable.Clear();
return NS_OK;
}
