void imgRequestProxy::RemoveFromLoadGroup(PRBool releaseLoadGroup)
{
if (!mIsInLoadGroup)
return;
/* calling RemoveFromLoadGroup may cause the document to finish
loading, which could result in our death. We need to make sure
that we stay alive long enough to fight another battle... at
least until we exit this function.
*/
nsCOMPtr<imgIRequest> kungFuDeathGrip(this);
mLoadGroup->RemoveRequest(this, NS_OK, nsnull);
mIsInLoadGroup = PR_FALSE;
if (releaseLoadGroup) {
// We're done with the loadgroup, release it.
mLoadGroup = nsnull;
}
}
void
TextureClientRecycleAllocator::RecycleTextureClient(TextureClient* aClient)
{
// Clearing the recycle allocator drops a reference, so make sure we stay alive
// for the duration of this function.
RefPtr<TextureClientRecycleAllocator> kungFuDeathGrip(this);
aClient->SetRecycleAllocator(nullptr);
RefPtr<TextureClientHolder> textureHolder;
{
MutexAutoLock lock(mLock);
if (mInUseClients.find(aClient) != mInUseClients.end()) {
textureHolder = mInUseClients[aClient]; // Keep reference count of TextureClientHolder within lock.
if (mPooledClients.size() < mMaxPooledSize) {
mPooledClients.push(textureHolder);
}
mInUseClients.erase(aClient);
}
}
}
NS_IMETHODIMP Observe(nsISupports* aSubject, const char* aTopic,
const PRUnichar* aData) {
if (strcmp(aTopic, NS_XPCOM_SHUTDOWN_OBSERVER_ID) == 0) {
CSFLogDebug(logTag, "Shutting down PeerConnectionCtx");
sipcc::PeerConnectionCtx::Destroy();
nsCOMPtr<nsIObserverService> observerService =
mozilla::services::GetObserverService();
if (!observerService)
return NS_ERROR_FAILURE;
nsresult rv = observerService->RemoveObserver(this,
NS_XPCOM_SHUTDOWN_OBSERVER_ID);
MOZ_ALWAYS_TRUE(NS_SUCCEEDED(rv));
// Make sure we're not deleted while still inside ::Observe()
nsRefPtr<PeerConnectionCtxShutdown> kungFuDeathGrip(this);
sipcc::PeerConnectionCtx::gPeerConnectionCtxShutdown = nullptr;
}
return NS_OK;
}
nsresult
TextEventDispatcher::DispatchEvent(nsIWidget* aWidget,
WidgetGUIEvent& aEvent,
nsEventStatus& aStatus)
{
nsRefPtr<TextEventDispatcher> kungFuDeathGrip(this);
nsCOMPtr<nsIWidget> widget(aWidget);
mDispatchingEvent++;
nsresult rv = NS_OK;
if (aEvent.AsInputEvent() &&
(!aEvent.mFlags.mIsSynthesizedForTests || gfxPrefs::TestEventsAsyncEnabled()))
{
aStatus = widget->DispatchInputEvent(aEvent.AsInputEvent());
} else {
rv = widget->DispatchEvent(&aEvent, aStatus);
}
mDispatchingEvent--;
return rv;
}
void
Service::unregisterConnection(Connection *aConnection)
{
// If this is the last Connection it might be the only thing keeping Service
// alive. So ensure that Service is destroyed only after the Connection is
// cleanly unregistered and destroyed.
RefPtr<Service> kungFuDeathGrip(this);
RefPtr<Connection> forgettingRef;
{
mRegistrationMutex.AssertNotCurrentThreadOwns();
MutexAutoLock mutex(mRegistrationMutex);
for (uint32_t i = 0 ; i < mConnections.Length(); ++i) {
if (mConnections[i] == aConnection) {
// Because dropping the final reference can potentially result in
// spinning a nested event loop if the connection was not properly
// shutdown, we want to do that outside this loop so that we can finish
// mutating the array and drop our mutex.
forgettingRef = mConnections[i].forget();
mConnections.RemoveElementAt(i);
break;
}
}
}
MOZ_ASSERT(forgettingRef,
"Attempt to unregister unknown storage connection!");
// Ensure the connection is released on its opening thread. We explicitly use
// aAlwaysDispatch=false because at the time of writing this, LocalStorage's
// StorageDBThread uses a hand-rolled PRThread implementation that cannot
// handle us dispatching events at it during shutdown. However, it is
// arguably also desirable for callers to not be aware of our connection
// tracking mechanism. And by synchronously dropping the reference (when
// on the correct thread), this avoids surprises for the caller and weird
// shutdown edge cases.
nsCOMPtr<nsIThread> thread = forgettingRef->threadOpenedOn;
NS_ProxyRelease(
"storage::Service::mConnections", thread, forgettingRef.forget(), false);
}
void
ProgressTracker::EmulateRequestFinished(imgRequestProxy* aProxy,
nsresult aStatus)
{
MOZ_ASSERT(NS_IsMainThread(),
"SyncNotifyState and mConsumers are not threadsafe");
nsCOMPtr<imgIRequest> kungFuDeathGrip(aProxy);
// In certain cases the request might not have started yet.
// We still need to fulfill the contract.
if (!(mProgress & FLAG_REQUEST_STARTED)) {
aProxy->OnStartRequest();
}
if (mProgress & FLAG_ONLOAD_BLOCKED && !(mProgress & FLAG_ONLOAD_UNBLOCKED)) {
aProxy->UnblockOnload();
}
if (!(mProgress & FLAG_REQUEST_STOPPED)) {
aProxy->OnStopRequest(true);
}
}
void XULPersist::AttributeChanged(dom::Element* aElement, int32_t aNameSpaceID,
nsAtom* aAttribute, int32_t aModType,
const nsAttrValue* aOldValue) {
NS_ASSERTION(aElement->OwnerDoc() == mDocument, "unexpected doc");
// Might not need this, but be safe for now.
nsCOMPtr<nsIDocumentObserver> kungFuDeathGrip(this);
// See if there is anything we need to persist in the localstore.
//
// XXX Namespace handling broken :-(
nsAutoString persist;
aElement->GetAttr(kNameSpaceID_None, nsGkAtoms::persist, persist);
// Persistence of attributes of xul:window is handled in nsXULWindow.
if (ShouldPersistAttribute(aElement, aAttribute) && !persist.IsEmpty() &&
// XXXldb This should check that it's a token, not just a substring.
persist.Find(nsDependentAtomString(aAttribute)) >= 0) {
nsContentUtils::AddScriptRunner(
NewRunnableMethod<Element*, int32_t, nsAtom*>(
"dom::XULPersist::Persist", this, &XULPersist::Persist, aElement,
kNameSpaceID_None, aAttribute));
}
}
// nsIBaseWindow
NS_IMETHODIMP nsWebShellWindow::Destroy()
{
nsresult rv;
nsCOMPtr<nsIWebProgress> webProgress(do_GetInterface(mDocShell, &rv));
if (webProgress) {
webProgress->RemoveProgressListener(this);
}
nsCOMPtr<nsIXULWindow> kungFuDeathGrip(this);
if (mSPTimerLock) {
PR_Lock(mSPTimerLock);
if (mSPTimer) {
mSPTimer->Cancel();
SavePersistentAttributes();
mSPTimer = nsnull;
NS_RELEASE_THIS(); // the timer held a reference to us
}
PR_Unlock(mSPTimerLock);
PR_DestroyLock(mSPTimerLock);
mSPTimerLock = nsnull;
}
return nsXULWindow::Destroy();
}
nsresult
TextEventDispatcher::DispatchInputEvent(nsIWidget* aWidget,
WidgetInputEvent& aEvent,
nsEventStatus& aStatus,
DispatchTo aDispatchTo)
{
RefPtr<TextEventDispatcher> kungFuDeathGrip(this);
nsCOMPtr<nsIWidget> widget(aWidget);
mDispatchingEvent++;
// If the event is dispatched via nsIWidget::DispatchInputEvent(), it
// sends the event to the parent process first since APZ needs to handle it
// first. However, some callers (e.g., keyboard apps on B2G and tests
// expecting synchronous dispatch) don't want this to do that.
nsresult rv = NS_OK;
if (aDispatchTo == eDispatchToParentProcess) {
aStatus = widget->DispatchInputEvent(&aEvent);
} else {
rv = widget->DispatchEvent(&aEvent, aStatus);
}
mDispatchingEvent--;
return rv;
}
//******************************************************************************
NS_IMETHODIMP
VectorImage::OnStartRequest(nsIRequest* aRequest, nsISupports* aCtxt)
{
MOZ_ASSERT(!mSVGDocumentWrapper,
"Repeated call to OnStartRequest -- can this happen?");
mSVGDocumentWrapper = new SVGDocumentWrapper();
nsresult rv = mSVGDocumentWrapper->OnStartRequest(aRequest, aCtxt);
if (NS_FAILED(rv)) {
mSVGDocumentWrapper = nullptr;
mError = true;
return rv;
}
// ProgressTracker::SyncNotifyProgress may release us, so ensure we
// stick around long enough to complete our work.
RefPtr<VectorImage> kungFuDeathGrip(this);
// Block page load until the document's ready. (We unblock it in
// OnSVGDocumentLoaded or OnSVGDocumentError.)
if (mProgressTracker) {
mProgressTracker->SyncNotifyProgress(FLAG_ONLOAD_BLOCKED);
}
// Create a listener to wait until the SVG document is fully loaded, which
// will signal that this image is ready to render. Certain error conditions
// will prevent us from ever getting this notification, so we also create a
// listener that waits for parsing to complete and cancels the
// SVGLoadEventListener if needed. The listeners are automatically attached
// to the document by their constructors.
nsIDocument* document = mSVGDocumentWrapper->GetDocument();
mLoadEventListener = new SVGLoadEventListener(document, this);
mParseCompleteListener = new SVGParseCompleteListener(document, this);
return NS_OK;
}
void
HttpChannelChild::FlushEventQueue()
{
NS_ABORT_IF_FALSE(mQueuePhase != PHASE_UNQUEUED,
"Queue flushing should not occur if PHASE_UNQUEUED");
// Queue already being flushed, or the channel's suspended.
if (mQueuePhase != PHASE_FINISHED_QUEUEING || mSuspendCount)
return;
if (mEventQueue.Length() > 0) {
// It is possible for new callbacks to be enqueued as we are
// flushing the queue, so the queue must not be cleared until
// all callbacks have run.
mQueuePhase = PHASE_FLUSHING;
nsRefPtr<HttpChannelChild> kungFuDeathGrip(this);
PRUint32 i;
for (i = 0; i < mEventQueue.Length(); i++) {
mEventQueue[i]->Run();
// If the callback ended up suspending us, abort all further flushing.
if (mSuspendCount)
break;
}
// We will always want to remove at least one finished callback.
if (i < mEventQueue.Length())
i++;
mEventQueue.RemoveElementsAt(0, i);
}
if (mSuspendCount)
mQueuePhase = PHASE_QUEUEING;
else
mQueuePhase = PHASE_UNQUEUED;
}
void
inDOMView::ContentInserted(nsIDocument *aDocument, nsIContent* aContainer,
nsIContent* aChild, PRInt32 /* unused */)
{
if (!mTree)
return;
nsresult rv;
nsCOMPtr<nsIDOMNode> childDOMNode(do_QueryInterface(aChild));
nsCOMPtr<nsIDOMNode> parent;
if (!mDOMUtils) {
mDOMUtils = do_GetService("@mozilla.org/inspector/dom-utils;1");
if (!mDOMUtils) {
return;
}
}
mDOMUtils->GetParentForNode(childDOMNode, mShowAnonymous,
getter_AddRefs(parent));
// find the inDOMViewNode for the parent of the inserted content
PRInt32 parentRow = 0;
if (NS_FAILED(rv = NodeToRow(parent, &parentRow)))
return;
inDOMViewNode* parentNode = nsnull;
if (NS_FAILED(rv = RowToNode(parentRow, &parentNode)))
return;
nsCOMPtr<nsIMutationObserver> kungFuDeathGrip(this);
if (!parentNode->isOpen) {
// Parent is not open, so don't bother creating tree rows for the
// kids. But do indicate that it's now a container, if needed.
if (!parentNode->isContainer) {
parentNode->isContainer = PR_TRUE;
mTree->InvalidateRow(parentRow);
}
return;
}
// get the previous sibling of the inserted content
nsCOMPtr<nsIDOMNode> previous;
GetRealPreviousSibling(childDOMNode, parent, getter_AddRefs(previous));
inDOMViewNode* previousNode = nsnull;
PRInt32 row = 0;
if (previous) {
// find the inDOMViewNode for the previous sibling of the inserted content
PRInt32 previousRow = 0;
if (NS_FAILED(rv = NodeToRow(previous, &previousRow)))
return;
if (NS_FAILED(rv = RowToNode(previousRow, &previousNode)))
return;
// get the last descendant of the previous row, which is the row
// after which to insert this new row
GetLastDescendantOf(previousNode, previousRow, &row);
++row;
} else {
// there is no previous sibling, so the new row will be inserted after the parent
row = parentRow+1;
}
inDOMViewNode* newNode = CreateNode(childDOMNode, parentNode);
if (previous) {
InsertLinkAfter(newNode, previousNode);
} else {
PRInt32 firstChildRow;
if (NS_SUCCEEDED(GetFirstDescendantOf(parentNode, parentRow, &firstChildRow))) {
inDOMViewNode* firstChild;
RowToNode(firstChildRow, &firstChild);
InsertLinkBefore(newNode, firstChild);
}
}
// insert new node
InsertNode(newNode, row);
mTree->RowCountChanged(row, 1);
}
void
inDOMView::AttributeChanged(nsIDocument* aDocument, dom::Element* aElement,
PRInt32 aNameSpaceID, nsIAtom* aAttribute,
PRInt32 aModType)
{
if (!mTree) {
return;
}
if (!(mWhatToShow & nsIDOMNodeFilter::SHOW_ATTRIBUTE)) {
return;
}
nsCOMPtr<nsIMutationObserver> kungFuDeathGrip(this);
// get the dom attribute node, if there is any
nsCOMPtr<nsIDOMNode> content(do_QueryInterface(aElement));
nsCOMPtr<nsIDOMElement> el(do_QueryInterface(aElement));
nsCOMPtr<nsIDOMAttr> domAttr;
nsDependentAtomString attrStr(aAttribute);
if (aNameSpaceID) {
nsCOMPtr<nsINameSpaceManager> nsm =
do_GetService(NS_NAMESPACEMANAGER_CONTRACTID);
if (!nsm) {
// we can't find out which attribute we want :(
return;
}
nsString attrNS;
nsresult rv = nsm->GetNameSpaceURI(aNameSpaceID, attrNS);
if (NS_FAILED(rv)) {
return;
}
(void)el->GetAttributeNodeNS(attrNS, attrStr, getter_AddRefs(domAttr));
} else {
(void)el->GetAttributeNode(attrStr, getter_AddRefs(domAttr));
}
if (aModType == nsIDOMMutationEvent::MODIFICATION) {
// No fancy stuff here, just invalidate the changed row
if (!domAttr) {
return;
}
PRInt32 row = 0;
NodeToRow(domAttr, &row);
mTree->InvalidateRange(row, row);
} else if (aModType == nsIDOMMutationEvent::ADDITION) {
if (!domAttr) {
return;
}
// get the number of attributes on this content node
nsCOMPtr<nsIDOMNamedNodeMap> attrs;
content->GetAttributes(getter_AddRefs(attrs));
PRUint32 attrCount;
attrs->GetLength(&attrCount);
inDOMViewNode* contentNode = nsnull;
PRInt32 contentRow;
PRInt32 attrRow;
if (mRootNode == content &&
!(mWhatToShow & nsIDOMNodeFilter::SHOW_ELEMENT)) {
// if this view has a root node but is not displaying it,
// it is ok to act as if the changed attribute is on the root.
attrRow = attrCount - 1;
} else {
if (NS_FAILED(NodeToRow(content, &contentRow))) {
return;
}
RowToNode(contentRow, &contentNode);
if (!contentNode->isOpen) {
return;
}
attrRow = contentRow + attrCount;
}
inDOMViewNode* newNode = CreateNode(domAttr, contentNode);
inDOMViewNode* insertNode = nsnull;
RowToNode(attrRow, &insertNode);
if (insertNode) {
if (contentNode &&
insertNode->level <= contentNode->level) {
RowToNode(attrRow-1, &insertNode);
InsertLinkAfter(newNode, insertNode);
} else
InsertLinkBefore(newNode, insertNode);
}
InsertNode(newNode, attrRow);
mTree->RowCountChanged(attrRow, 1);
} else if (aModType == nsIDOMMutationEvent::REMOVAL) {
// At this point, the attribute is already gone from the DOM, but is still represented
// in our mRows array. Search through the content node's children for the corresponding
// node and remove it.
// get the row of the content node
inDOMViewNode* contentNode = nsnull;
PRInt32 contentRow;
PRInt32 baseLevel;
if (NS_SUCCEEDED(NodeToRow(content, &contentRow))) {
RowToNode(contentRow, &contentNode);
baseLevel = contentNode->level;
} else {
if (mRootNode == content) {
contentRow = -1;
baseLevel = -1;
} else
return;
}
// search for the attribute node that was removed
inDOMViewNode* checkNode = nsnull;
PRInt32 row = 0;
for (row = contentRow+1; row < GetRowCount(); ++row) {
checkNode = GetNodeAt(row);
if (checkNode->level == baseLevel+1) {
domAttr = do_QueryInterface(checkNode->node);
if (domAttr) {
nsAutoString attrName;
domAttr->GetNodeName(attrName);
if (attrName.Equals(attrStr)) {
// we have found the row for the attribute that was removed
RemoveLink(checkNode);
RemoveNode(row);
mTree->RowCountChanged(row, -1);
break;
}
}
}
if (checkNode->level <= baseLevel)
break;
}
}
}
void
TelephonyCall::ChangeStateInternal(uint16_t aCallState, bool aFireEvents)
{
nsRefPtr<TelephonyCall> kungFuDeathGrip(this);
nsString stateString;
switch (aCallState) {
case nsITelephonyProvider::CALL_STATE_DIALING:
stateString.AssignLiteral("dialing");
break;
case nsITelephonyProvider::CALL_STATE_ALERTING:
stateString.AssignLiteral("alerting");
break;
case nsITelephonyProvider::CALL_STATE_BUSY:
stateString.AssignLiteral("busy");
break;
case nsITelephonyProvider::CALL_STATE_CONNECTING:
stateString.AssignLiteral("connecting");
break;
case nsITelephonyProvider::CALL_STATE_CONNECTED:
stateString.AssignLiteral("connected");
break;
case nsITelephonyProvider::CALL_STATE_HOLDING:
stateString.AssignLiteral("holding");
break;
case nsITelephonyProvider::CALL_STATE_HELD:
stateString.AssignLiteral("held");
break;
case nsITelephonyProvider::CALL_STATE_RESUMING:
stateString.AssignLiteral("resuming");
break;
case nsITelephonyProvider::CALL_STATE_DISCONNECTING:
stateString.AssignLiteral("disconnecting");
break;
case nsITelephonyProvider::CALL_STATE_DISCONNECTED:
stateString.AssignLiteral("disconnected");
break;
case nsITelephonyProvider::CALL_STATE_INCOMING:
stateString.AssignLiteral("incoming");
break;
default:
NS_NOTREACHED("Unknown state!");
}
mState = stateString;
mCallState = aCallState;
if (aCallState == nsITelephonyProvider::CALL_STATE_DIALING) {
mOutgoing = true;
}
if (aCallState == nsITelephonyProvider::CALL_STATE_DISCONNECTED) {
NS_ASSERTION(mLive, "Should be live!");
mTelephony->RemoveCall(this);
mLive = false;
} else if (!mLive) {
mTelephony->AddCall(this);
mLive = true;
}
if (aFireEvents) {
nsresult rv = DispatchCallEvent(NS_LITERAL_STRING("statechange"), this);
if (NS_FAILED(rv)) {
NS_WARNING("Failed to dispatch specific event!");
}
// This can change if the statechange handler called back here... Need to
// figure out something smarter.
if (mCallState == aCallState) {
rv = DispatchCallEvent(stateString, this);
if (NS_FAILED(rv)) {
NS_WARNING("Failed to dispatch specific event!");
}
}
}
}
NS_IMETHODIMP
nsDownload::OnStateChange(nsIWebProgress* aWebProgress,
nsIRequest* aRequest, PRUint32 aStateFlags,
nsresult aStatus)
{
// Record the start time only if it hasn't been set.
if (LL_IS_ZERO(mStartTime) && (aStateFlags & STATE_START))
SetStartTime(PR_Now());
// When we break the ref cycle with mPersist, we don't want to lose
// access to out member vars!
nsRefPtr<nsDownload> kungFuDeathGrip(this);
// We need to update mDownloadState before updating the dialog, because
// that will close and call CancelDownload if it was the last open window.
nsresult rv = NS_OK;
if (aStateFlags & STATE_STOP) {
if (mDownloadState == DOWNLOADING || mDownloadState == NOTSTARTED) {
mDownloadState = FINISHED;
// Set file size at the end of a transfer (for unknown transfer amounts)
if (mMaxBytes == -1)
mMaxBytes = mCurrBytes;
// Files less than 1Kb shouldn't show up as 0Kb.
if (mMaxBytes < 1024) {
mCurrBytes = 1024;
mMaxBytes = 1024;
}
mPercentComplete = 100;
// Play a sound or show an alert when the download finishes
PRBool playSound = PR_FALSE;
PRBool showAlert = PR_FALSE;
nsXPIDLCString soundStr;
nsCOMPtr<nsIPrefService> prefs = do_GetService("@mozilla.org/preferences-service;1");
if (prefs) {
nsCOMPtr<nsIPrefBranch> prefBranch;
prefs->GetBranch(nsnull, getter_AddRefs(prefBranch));
if (prefBranch) {
rv = prefBranch->GetBoolPref("browser.download.finished_download_sound", &playSound);
if (NS_SUCCEEDED(rv) && playSound)
prefBranch->GetCharPref("browser.download.finished_sound_url", getter_Copies(soundStr));
rv = prefBranch->GetBoolPref("browser.download.finished_download_alert", &showAlert);
if (NS_FAILED(rv))
showAlert = PR_FALSE;
}
}
if (!soundStr.IsEmpty()) {
if (!mDownloadManager->mSoundInterface) {
mDownloadManager->mSoundInterface = do_CreateInstance("@mozilla.org/sound;1");
}
if (mDownloadManager->mSoundInterface) {
nsCOMPtr<nsIURI> soundURI;
NS_NewURI(getter_AddRefs(soundURI), soundStr);
nsCOMPtr<nsIURL> soundURL(do_QueryInterface(soundURI));
if (soundURL)
mDownloadManager->mSoundInterface->Play(soundURL);
else
mDownloadManager->mSoundInterface->Beep();
}
}
if (showAlert)
DisplayDownloadFinishedAlert();
nsCAutoString path;
rv = GetFilePathUTF8(mTarget, path);
// can't do an early return; have to break reference cycle below
if (NS_SUCCEEDED(rv)) {
mDownloadManager->DownloadEnded(path, nsnull);
}
}
// break the cycle we created in AddDownload
mCancelable = nsnull;
// and the one with the progress dialog
if (mDialog) {
mDialog->SetObserver(nsnull);
mDialog = nsnull;
}
}
if (mDownloadManager->MustUpdateUI()) {
nsCOMPtr<nsIDownloadProgressListener> internalListener;
mDownloadManager->GetInternalListener(getter_AddRefs(internalListener));
if (internalListener)
internalListener->OnStateChange(aWebProgress, aRequest, aStateFlags, aStatus, this);
}
if (mDialogListener) {
mDialogListener->OnStateChange(aWebProgress, aRequest, aStateFlags, aStatus, this);
if (aStateFlags & STATE_STOP) {
// Break this cycle, too
mDialogListener = nsnull;
}
}
return rv;
}
NS_IMETHODIMP
nsHtml5Parser::Parse(const nsAString& aSourceBuffer,
void* aKey,
const nsACString& aContentType, // ignored
bool aLastCall,
nsDTDMode aMode) // ignored
{
NS_PRECONDITION(!mExecutor->IsFragmentMode(),
"Document.write called in fragment mode!");
if (mExecutor->IsBroken()) {
return NS_ERROR_OUT_OF_MEMORY;
}
if (aSourceBuffer.Length() > PR_INT32_MAX) {
mExecutor->MarkAsBroken();
return NS_ERROR_OUT_OF_MEMORY;
}
// Maintain a reference to ourselves so we don't go away
// till we're completely done. The old parser grips itself in this method.
nsCOMPtr<nsIParser> kungFuDeathGrip(this);
// Gripping the other objects just in case, since the other old grip
// required grips to these, too.
nsRefPtr<nsHtml5StreamParser> streamKungFuDeathGrip(mStreamParser);
nsRefPtr<nsHtml5TreeOpExecutor> treeOpKungFuDeathGrip(mExecutor);
if (!mExecutor->HasStarted()) {
NS_ASSERTION(!mStreamParser,
"Had stream parser but document.write started life cycle.");
// This is the first document.write() on a document.open()ed document
mExecutor->SetParser(this);
mTreeBuilder->setScriptingEnabled(mExecutor->IsScriptEnabled());
mTokenizer->start();
mExecutor->Start();
/*
* If you move the following line, be very careful not to cause
* WillBuildModel to be called before the document has had its
* script global object set.
*/
mExecutor->WillBuildModel(eDTDMode_unknown);
}
// Return early if the parser has processed EOF
if (mExecutor->IsComplete()) {
return NS_OK;
}
if (aLastCall && aSourceBuffer.IsEmpty() && aKey == GetRootContextKey()) {
// document.close()
NS_ASSERTION(!mStreamParser,
"Had stream parser but got document.close().");
mDocumentClosed = true;
if (!mBlocked) {
ParseUntilBlocked();
}
return NS_OK;
}
NS_ASSERTION(IsInsertionPointDefined(),
"Doc.write reached parser with undefined insertion point.");
NS_ASSERTION(!(mStreamParser && !aKey),
"Got a null key in a non-script-created parser");
if (aSourceBuffer.IsEmpty()) {
return NS_OK;
}
nsHtml5DependentUTF16Buffer stackBuffer(aSourceBuffer);
while (!mBlocked && stackBuffer.hasMore()) {
stackBuffer.adjust(mLastWasCR);
mLastWasCR = false;
if (stackBuffer.hasMore()) {
PRInt32 lineNumberSave;
bool inRootContext = (!mStreamParser && (aKey == mRootContextKey));
if (inRootContext) {
mTokenizer->setLineNumber(mRootContextLineNumber);
} else {
// we aren't the root context, so save the line number on the
// *stack* so that we can restore it.
lineNumberSave = mTokenizer->getLineNumber();
}
mLastWasCR = mTokenizer->tokenizeBuffer(&stackBuffer);
if (inRootContext) {
mRootContextLineNumber = mTokenizer->getLineNumber();
} else {
mTokenizer->setLineNumber(lineNumberSave);
}
if (mTreeBuilder->HasScript()) {
mTreeBuilder->Flush(); // Move ops to the executor
mExecutor->FlushDocumentWrite(); // run the ops
}
// Ignore suspension requests
}
}
nsRefPtr<nsHtml5OwningUTF16Buffer> heapBuffer;
if (stackBuffer.hasMore()) {
// The buffer wasn't tokenized to completion. Create a copy of the tail
// on the heap.
heapBuffer = stackBuffer.FalliblyCopyAsOwningBuffer();
if (!heapBuffer) {
// Allocation failed. The parser is now broken.
mExecutor->MarkAsBroken();
return NS_ERROR_OUT_OF_MEMORY;
}
}
// The buffer is inserted to the stream here in case it won't be parsed
// to completion.
// The script is identified by aKey. If there's nothing in the buffer
// chain for that key, we'll insert at the head of the queue.
// When the script leaves something in the queue, a zero-length
// key-holder "buffer" is inserted in the queue. If the same script
// leaves something in the chain again, it will be inserted immediately
// before the old key holder belonging to the same script.
nsHtml5OwningUTF16Buffer* prevSearchBuf = nsnull;
nsHtml5OwningUTF16Buffer* searchBuf = mFirstBuffer;
// after document.open, the first level of document.write has null key
if (aKey) {
while (searchBuf != mLastBuffer) {
if (searchBuf->key == aKey) {
// found a key holder
// now insert the new buffer between the previous buffer
// and the key holder if we have a buffer left.
if (heapBuffer) {
heapBuffer->next = searchBuf;
if (prevSearchBuf) {
prevSearchBuf->next = heapBuffer;
} else {
mFirstBuffer = heapBuffer;
}
}
break;
}
prevSearchBuf = searchBuf;
searchBuf = searchBuf->next;
}
if (searchBuf == mLastBuffer) {
// key was not found
nsHtml5OwningUTF16Buffer* keyHolder = new nsHtml5OwningUTF16Buffer(aKey);
keyHolder->next = mFirstBuffer;
if (heapBuffer) {
heapBuffer->next = keyHolder;
mFirstBuffer = heapBuffer;
} else {
mFirstBuffer = keyHolder;
}
}
} else if (heapBuffer) {
// we have a first level document.write after document.open()
// insert immediately before mLastBuffer
while (searchBuf != mLastBuffer) {
prevSearchBuf = searchBuf;
searchBuf = searchBuf->next;
}
heapBuffer->next = mLastBuffer;
if (prevSearchBuf) {
prevSearchBuf->next = heapBuffer;
} else {
mFirstBuffer = heapBuffer;
}
}
if (!mBlocked) { // buffer was tokenized to completion
NS_ASSERTION(!stackBuffer.hasMore(),
"Buffer wasn't tokenized to completion?");
// Scripting semantics require a forced tree builder flush here
mTreeBuilder->Flush(); // Move ops to the executor
mExecutor->FlushDocumentWrite(); // run the ops
} else if (stackBuffer.hasMore()) {
// The buffer wasn't tokenized to completion. Tokenize the untokenized
// content in order to preload stuff. This content will be retokenized
// later for normal parsing.
if (!mDocWriteSpeculatorActive) {
mDocWriteSpeculatorActive = true;
if (!mDocWriteSpeculativeTreeBuilder) {
// Lazily initialize if uninitialized
mDocWriteSpeculativeTreeBuilder =
new nsHtml5TreeBuilder(nsnull, mExecutor->GetStage());
mDocWriteSpeculativeTreeBuilder->setScriptingEnabled(
mTreeBuilder->isScriptingEnabled());
mDocWriteSpeculativeTokenizer =
new nsHtml5Tokenizer(mDocWriteSpeculativeTreeBuilder);
mDocWriteSpeculativeTokenizer->setInterner(&mAtomTable);
mDocWriteSpeculativeTokenizer->start();
}
mDocWriteSpeculativeTokenizer->resetToDataState();
mDocWriteSpeculativeTreeBuilder->loadState(mTreeBuilder, &mAtomTable);
mDocWriteSpeculativeLastWasCR = false;
}
// Note that with multilevel document.write if we didn't just activate the
// speculator, it's possible that the speculator is now in the wrong state.
// That's OK for the sake of simplicity. The worst that can happen is
// that the speculative loads aren't exactly right. The content will be
// reparsed anyway for non-preload purposes.
// The buffer position for subsequent non-speculative parsing now lives
// in heapBuffer, so it's ok to let the buffer position of stackBuffer
// to be overwritten and not restored below.
while (stackBuffer.hasMore()) {
stackBuffer.adjust(mDocWriteSpeculativeLastWasCR);
if (stackBuffer.hasMore()) {
mDocWriteSpeculativeLastWasCR =
mDocWriteSpeculativeTokenizer->tokenizeBuffer(&stackBuffer);
}
}
mDocWriteSpeculativeTreeBuilder->Flush();
mDocWriteSpeculativeTreeBuilder->DropHandles();
mExecutor->FlushSpeculativeLoads();
}
return NS_OK;
}
void
TelephonyCall::ChangeStateInternal(PRUint16 aCallState, bool aFireEvents)
{
nsRefPtr<TelephonyCall> kungFuDeathGrip(this);
nsString stateString;
switch (aCallState) {
case nsIRadioInterfaceLayer::CALL_STATE_DIALING:
stateString.AssignLiteral("dialing");
break;
case nsIRadioInterfaceLayer::CALL_STATE_RINGING:
stateString.AssignLiteral("ringing");
break;
case nsIRadioInterfaceLayer::CALL_STATE_BUSY:
stateString.AssignLiteral("busy");
break;
case nsIRadioInterfaceLayer::CALL_STATE_CONNECTING:
stateString.AssignLiteral("connecting");
break;
case nsIRadioInterfaceLayer::CALL_STATE_CONNECTED:
stateString.AssignLiteral("connected");
break;
case nsIRadioInterfaceLayer::CALL_STATE_HOLDING:
stateString.AssignLiteral("holding");
break;
case nsIRadioInterfaceLayer::CALL_STATE_HELD:
stateString.AssignLiteral("held");
break;
case nsIRadioInterfaceLayer::CALL_STATE_RESUMING:
stateString.AssignLiteral("resuming");
break;
case nsIRadioInterfaceLayer::CALL_STATE_DISCONNECTING:
stateString.AssignLiteral("disconnecting");
break;
case nsIRadioInterfaceLayer::CALL_STATE_DISCONNECTED:
stateString.AssignLiteral("disconnected");
break;
case nsIRadioInterfaceLayer::CALL_STATE_INCOMING:
stateString.AssignLiteral("incoming");
break;
default:
NS_NOTREACHED("Unknown state!");
}
mState = stateString;
mCallState = aCallState;
if (aCallState == nsIRadioInterfaceLayer::CALL_STATE_DIALING) {
mOutgoing = true;
}
if (aCallState == nsIRadioInterfaceLayer::CALL_STATE_DISCONNECTED) {
NS_ASSERTION(mLive, "Should be live!");
mTelephony->RemoveCall(this);
mLive = false;
} else if (!mLive) {
mTelephony->AddCall(this);
mLive = true;
}
if (aFireEvents) {
nsRefPtr<CallEvent> event = CallEvent::Create(this);
NS_ASSERTION(event, "This should never fail!");
if (NS_FAILED(event->Dispatch(ToIDOMEventTarget(),
NS_LITERAL_STRING("statechange")))) {
NS_WARNING("Failed to dispatch statechange event!");
}
// This can change if the statechange handler called back here... Need to
// figure out something smarter.
if (mCallState == aCallState) {
event = CallEvent::Create(this);
NS_ASSERTION(event, "This should never fail!");
if (NS_FAILED(event->Dispatch(ToIDOMEventTarget(), stateString))) {
NS_WARNING("Failed to dispatch specific event!");
}
}
}
}
NS_IMETHODIMP
nsLoadGroup::RemoveRequest(nsIRequest *request, nsISupports* ctxt,
nsresult aStatus)
{
NS_ENSURE_ARG_POINTER(request);
nsresult rv;
#if defined(PR_LOGGING)
{
nsCAutoString nameStr;
request->GetName(nameStr);
LOG(("LOADGROUP [%x]: Removing request %x %s status %x (count=%d).\n",
this, request, nameStr.get(), aStatus, mRequests.entryCount-1));
}
#endif
// Make sure we have a owning reference to the request we're about
// to remove.
nsCOMPtr<nsIRequest> kungFuDeathGrip(request);
//
// Remove the request from the group. If this fails, it means that
// the request was *not* in the group so do not update the foreground
// count or it will get messed up...
//
RequestMapEntry *entry =
static_cast<RequestMapEntry *>
(PL_DHashTableOperate(&mRequests, request,
PL_DHASH_LOOKUP));
if (PL_DHASH_ENTRY_IS_FREE(entry)) {
LOG(("LOADGROUP [%x]: Unable to remove request %x. Not in group!\n",
this, request));
return NS_ERROR_FAILURE;
}
PL_DHashTableRawRemove(&mRequests, entry);
// Undo any group priority delta...
if (mPriority != 0)
RescheduleRequest(request, -mPriority);
nsLoadFlags flags;
rv = request->GetLoadFlags(&flags);
if (NS_FAILED(rv)) return rv;
if (!(flags & nsIRequest::LOAD_BACKGROUND)) {
NS_ASSERTION(mForegroundCount > 0, "ForegroundCount messed up");
mForegroundCount -= 1;
// Fire the OnStopRequest out to the observer...
nsCOMPtr<nsIRequestObserver> observer = do_QueryReferent(mObserver);
if (observer) {
LOG(("LOADGROUP [%x]: Firing OnStopRequest for request %x."
"(foreground count=%d).\n", this, request, mForegroundCount));
rv = observer->OnStopRequest(request, ctxt, aStatus);
#if defined(PR_LOGGING)
if (NS_FAILED(rv)) {
LOG(("LOADGROUP [%x]: OnStopRequest for request %x FAILED.\n",
this, request));
}
#endif
}
// If that was the last request -> remove ourselves from loadgroup
if (mForegroundCount == 0 && mLoadGroup) {
mLoadGroup->RemoveRequest(this, nsnull, aStatus);
}
}
return rv;
}
void
nsTreeContentView::ContentInserted(nsIDocument *aDocument,
nsIContent* aContainer,
nsIContent* aChild,
int32_t /* unused */)
{
NS_ASSERTION(aChild, "null ptr");
// Make sure this notification concerns us.
// First check the tag to see if it's one that we care about.
nsIAtom *childTag = aChild->Tag();
// Don't allow non-XUL nodes.
if (!aChild->IsXUL() || !aContainer->IsXUL())
return;
if (childTag != nsGkAtoms::treeitem &&
childTag != nsGkAtoms::treeseparator &&
childTag != nsGkAtoms::treechildren &&
childTag != nsGkAtoms::treerow &&
childTag != nsGkAtoms::treecell) {
return;
}
// If we have a legal tag, go up to the tree/select and make sure
// that it's ours.
for (nsIContent* element = aContainer; element != mBody; element = element->GetParent()) {
if (!element)
return; // this is not for us
nsIAtom *parentTag = element->Tag();
if (element->IsXUL() && parentTag == nsGkAtoms::tree)
return; // this is not for us
}
// Lots of codepaths under here that do all sorts of stuff, so be safe.
nsCOMPtr<nsIMutationObserver> kungFuDeathGrip(this);
if (childTag == nsGkAtoms::treechildren) {
int32_t index = FindContent(aContainer);
if (index >= 0) {
Row* row = mRows[index];
row->SetEmpty(false);
if (mBoxObject)
mBoxObject->InvalidateRow(index);
if (row->IsContainer() && row->IsOpen()) {
int32_t count = EnsureSubtree(index);
if (mBoxObject)
mBoxObject->RowCountChanged(index + 1, count);
}
}
}
else if (childTag == nsGkAtoms::treeitem ||
childTag == nsGkAtoms::treeseparator) {
InsertRowFor(aContainer, aChild);
}
else if (childTag == nsGkAtoms::treerow) {
int32_t index = FindContent(aContainer);
if (index >= 0 && mBoxObject)
mBoxObject->InvalidateRow(index);
}
else if (childTag == nsGkAtoms::treecell) {
nsCOMPtr<nsIContent> parent = aContainer->GetParent();
if (parent) {
int32_t index = FindContent(parent);
if (index >= 0 && mBoxObject)
mBoxObject->InvalidateRow(index);
}
}
}
void
nsTreeContentView::ContentRemoved(nsIDocument *aDocument,
nsIContent* aContainer,
nsIContent* aChild,
int32_t aIndexInContainer,
nsIContent* aPreviousSibling)
{
NS_ASSERTION(aChild, "null ptr");
// Make sure this notification concerns us.
// First check the tag to see if it's one that we care about.
nsIAtom *tag = aChild->Tag();
// We don't consider non-XUL nodes.
if (!aChild->IsXUL() || !aContainer->IsXUL())
return;
if (tag != nsGkAtoms::treeitem &&
tag != nsGkAtoms::treeseparator &&
tag != nsGkAtoms::treechildren &&
tag != nsGkAtoms::treerow &&
tag != nsGkAtoms::treecell) {
return;
}
// If we have a legal tag, go up to the tree/select and make sure
// that it's ours.
for (nsIContent* element = aContainer; element != mBody; element = element->GetParent()) {
if (!element)
return; // this is not for us
nsIAtom *parentTag = element->Tag();
if (element->IsXUL() && parentTag == nsGkAtoms::tree)
return; // this is not for us
}
// Lots of codepaths under here that do all sorts of stuff, so be safe.
nsCOMPtr<nsIMutationObserver> kungFuDeathGrip(this);
if (tag == nsGkAtoms::treechildren) {
int32_t index = FindContent(aContainer);
if (index >= 0) {
Row* row = mRows[index];
row->SetEmpty(true);
int32_t count = RemoveSubtree(index);
// Invalidate also the row to update twisty.
if (mBoxObject) {
mBoxObject->InvalidateRow(index);
mBoxObject->RowCountChanged(index + 1, -count);
}
}
}
else if (tag == nsGkAtoms::treeitem ||
tag == nsGkAtoms::treeseparator
) {
int32_t index = FindContent(aChild);
if (index >= 0) {
int32_t count = RemoveRow(index);
if (mBoxObject)
mBoxObject->RowCountChanged(index, -count);
}
}
else if (tag == nsGkAtoms::treerow) {
int32_t index = FindContent(aContainer);
if (index >= 0 && mBoxObject)
mBoxObject->InvalidateRow(index);
}
else if (tag == nsGkAtoms::treecell) {
nsCOMPtr<nsIContent> parent = aContainer->GetParent();
if (parent) {
int32_t index = FindContent(parent);
if (index >= 0 && mBoxObject)
mBoxObject->InvalidateRow(index);
}
}
}
bool
IMEContentObserver::OnMouseButtonEvent(nsPresContext* aPresContext,
WidgetMouseEvent* aMouseEvent)
{
if (!mUpdatePreference.WantMouseButtonEventOnChar()) {
return false;
}
if (!aMouseEvent->mFlags.mIsTrusted ||
aMouseEvent->mFlags.mDefaultPrevented ||
!aMouseEvent->widget) {
return false;
}
// Now, we need to notify only mouse down and mouse up event.
switch (aMouseEvent->message) {
case NS_MOUSE_BUTTON_UP:
case NS_MOUSE_BUTTON_DOWN:
break;
default:
return false;
}
if (NS_WARN_IF(!mWidget) || NS_WARN_IF(mWidget->Destroyed())) {
return false;
}
nsRefPtr<IMEContentObserver> kungFuDeathGrip(this);
WidgetQueryContentEvent charAtPt(true, NS_QUERY_CHARACTER_AT_POINT,
aMouseEvent->widget);
charAtPt.refPoint = aMouseEvent->refPoint;
ContentEventHandler handler(aPresContext);
handler.OnQueryCharacterAtPoint(&charAtPt);
if (NS_WARN_IF(!charAtPt.mSucceeded) ||
charAtPt.mReply.mOffset == WidgetQueryContentEvent::NOT_FOUND) {
return false;
}
// The widget might be destroyed during querying the content since it
// causes flushing layout.
if (!mWidget || NS_WARN_IF(mWidget->Destroyed())) {
return false;
}
// The result character rect is relative to the top level widget.
// We should notify it with offset in the widget.
nsIWidget* topLevelWidget = mWidget->GetTopLevelWidget();
if (topLevelWidget && topLevelWidget != mWidget) {
charAtPt.mReply.mRect.MoveBy(
topLevelWidget->WidgetToScreenOffset() -
mWidget->WidgetToScreenOffset());
}
// The refPt is relative to its widget.
// We should notify it with offset in the widget.
if (aMouseEvent->widget != mWidget) {
charAtPt.refPoint += aMouseEvent->widget->WidgetToScreenOffset() -
mWidget->WidgetToScreenOffset();
}
IMENotification notification(NOTIFY_IME_OF_MOUSE_BUTTON_EVENT);
notification.mMouseButtonEventData.mEventMessage = aMouseEvent->message;
notification.mMouseButtonEventData.mOffset = charAtPt.mReply.mOffset;
notification.mMouseButtonEventData.mCursorPos.Set(
LayoutDeviceIntPoint::ToUntyped(charAtPt.refPoint));
notification.mMouseButtonEventData.mCharRect.Set(
LayoutDevicePixel::ToUntyped(charAtPt.mReply.mRect));
notification.mMouseButtonEventData.mButton = aMouseEvent->button;
notification.mMouseButtonEventData.mButtons = aMouseEvent->buttons;
notification.mMouseButtonEventData.mModifiers = aMouseEvent->modifiers;
nsresult rv = IMEStateManager::NotifyIME(notification, mWidget);
if (NS_WARN_IF(NS_FAILED(rv))) {
return false;
}
bool consumed = (rv == NS_SUCCESS_EVENT_CONSUMED);
aMouseEvent->mFlags.mDefaultPrevented = consumed;
return consumed;
}
/**
* This method contains the core guts of the handling of QueryInterface calls
* that are delegated to us from the ICallInterceptor.
*
* @param aIid ID of the desired interface
* @param aOutInterceptor The resulting emulated vtable that corresponds to
* the interface specified by aIid.
*/
HRESULT
Interceptor::GetInterceptorForIID(REFIID aIid, void** aOutInterceptor)
{
if (!aOutInterceptor) {
return E_INVALIDARG;
}
if (aIid == IID_IUnknown) {
// Special case: When we see IUnknown, we just provide a reference to this
*aOutInterceptor = static_cast<IInterceptor*>(this);
AddRef();
return S_OK;
}
RefPtr<IUnknown> unkInterceptor;
IUnknown* interfaceForQILog = nullptr;
// (1) Check to see if we already have an existing interceptor for aIid.
{ // Scope for lock
MutexAutoLock lock(mMutex);
MapEntry* entry = Lookup(aIid);
if (entry) {
unkInterceptor = entry->mInterceptor;
interfaceForQILog = entry->mTargetInterface;
}
}
// (1a) A COM interceptor already exists for this interface, so all we need
// to do is run a QI on it.
if (unkInterceptor) {
// Technically we didn't actually execute a QI on the target interface, but
// for logging purposes we would like to record the fact that this interface
// was requested.
InterceptorLog::QI(S_OK, mTarget.get(), aIid, interfaceForQILog);
return unkInterceptor->QueryInterface(aIid, aOutInterceptor);
}
// (2) Obtain a new target interface.
// (2a) First, make sure that the target interface is available
// NB: We *MUST* query the correct interface! ICallEvents::Invoke casts its
// pvReceiver argument directly to the required interface! DO NOT assume
// that COM will use QI or upcast/downcast!
HRESULT hr;
STAUniquePtr<IUnknown> targetInterface;
IUnknown* rawTargetInterface = nullptr;
hr = QueryInterfaceTarget(aIid, (void**)&rawTargetInterface);
targetInterface.reset(rawTargetInterface);
InterceptorLog::QI(hr, mTarget.get(), aIid, targetInterface.get());
MOZ_ASSERT(SUCCEEDED(hr) || hr == E_NOINTERFACE);
if (FAILED(hr)) {
return hr;
}
// We *really* shouldn't be adding interceptors to proxies
MOZ_ASSERT(aIid != IID_IMarshal);
// (3) Create a new COM interceptor to that interface that delegates its
// IUnknown to |this|.
// Raise the refcount for stabilization purposes during aggregation
RefPtr<IUnknown> kungFuDeathGrip(static_cast<IUnknown*>(
static_cast<WeakReferenceSupport*>(this)));
hr = CreateInterceptor(aIid, kungFuDeathGrip, getter_AddRefs(unkInterceptor));
if (FAILED(hr)) {
return hr;
}
// (4) Obtain the interceptor's ICallInterceptor interface and register our
// event sink.
RefPtr<ICallInterceptor> interceptor;
hr = unkInterceptor->QueryInterface(IID_ICallInterceptor,
(void**)getter_AddRefs(interceptor));
if (FAILED(hr)) {
return hr;
}
hr = interceptor->RegisterSink(mEventSink);
if (FAILED(hr)) {
return hr;
}
// (5) Now that we have this new COM interceptor, insert it into the map.
{ // Scope for lock
MutexAutoLock lock(mMutex);
// We might have raced with another thread, so first check that we don't
// already have an entry for this
MapEntry* entry = Lookup(aIid);
if (entry && entry->mInterceptor) {
unkInterceptor = entry->mInterceptor;
} else {
// We're inserting unkInterceptor into the map but we still want to hang
// onto it locally so that we can QI it below.
unkInterceptor->AddRef();
// OTOH we must not touch the refcount for the target interface
// because we are just moving it into the map and its refcounting might
// not be thread-safe.
IUnknown* rawTargetInterface = targetInterface.release();
mInterceptorMap.AppendElement(MapEntry(aIid,
unkInterceptor,
rawTargetInterface));
}
}
return unkInterceptor->QueryInterface(aIid, aOutInterceptor);
}
void
EventListenerManager::RemoveEventListenerInternal(
const EventListenerHolder& aListenerHolder,
uint32_t aType,
nsIAtom* aUserType,
const nsAString& aTypeString,
const EventListenerFlags& aFlags,
bool aAllEvents)
{
if (!aListenerHolder || !aType || mClearingListeners) {
return;
}
Listener* listener;
uint32_t count = mListeners.Length();
uint32_t typeCount = 0;
bool deviceType = IsDeviceType(aType);
#ifdef MOZ_B2G
bool timeChangeEvent = (aType == NS_MOZ_TIME_CHANGE_EVENT);
bool networkEvent = (aType == NS_NETWORK_UPLOAD_EVENT ||
aType == NS_NETWORK_DOWNLOAD_EVENT);
#endif // MOZ_B2G
for (uint32_t i = 0; i < count; ++i) {
listener = &mListeners.ElementAt(i);
if (EVENT_TYPE_EQUALS(listener, aType, aUserType, aTypeString,
aAllEvents)) {
++typeCount;
if (listener->mListener == aListenerHolder &&
listener->mFlags.EqualsIgnoringTrustness(aFlags)) {
nsRefPtr<EventListenerManager> kungFuDeathGrip(this);
mListeners.RemoveElementAt(i);
--count;
mNoListenerForEvent = NS_EVENT_NULL;
mNoListenerForEventAtom = nullptr;
if (mTarget && aUserType) {
mTarget->EventListenerRemoved(aUserType);
}
if (!deviceType
#ifdef MOZ_B2G
&& !timeChangeEvent && !networkEvent
#endif // MOZ_B2G
) {
return;
}
--typeCount;
}
}
}
if (!aAllEvents && deviceType && typeCount == 0) {
DisableDevice(aType);
#ifdef MOZ_B2G
} else if (timeChangeEvent && typeCount == 0) {
nsCOMPtr<nsPIDOMWindow> window = GetTargetAsInnerWindow();
if (window) {
window->DisableTimeChangeNotifications();
}
} else if (!aAllEvents && networkEvent && typeCount == 0) {
nsCOMPtr<nsPIDOMWindow> window = GetTargetAsInnerWindow();
if (window) {
window->DisableNetworkEvent(aType);
}
#endif // MOZ_B2G
}
}
nsresult
nsHtml5Parser::Parse(const nsAString& aSourceBuffer,
void* aKey,
const nsACString& aContentType,
bool aLastCall,
nsDTDMode aMode) // ignored
{
nsresult rv;
if (NS_FAILED(rv = mExecutor->IsBroken())) {
return rv;
}
if (aSourceBuffer.Length() > INT32_MAX) {
return mExecutor->MarkAsBroken(NS_ERROR_OUT_OF_MEMORY);
}
// Maintain a reference to ourselves so we don't go away
// till we're completely done. The old parser grips itself in this method.
nsCOMPtr<nsIParser> kungFuDeathGrip(this);
// Gripping the other objects just in case, since the other old grip
// required grips to these, too.
nsRefPtr<nsHtml5StreamParser> streamKungFuDeathGrip(GetStreamParser());
nsRefPtr<nsHtml5TreeOpExecutor> treeOpKungFuDeathGrip(mExecutor);
if (!mExecutor->HasStarted()) {
NS_ASSERTION(!GetStreamParser(),
"Had stream parser but document.write started life cycle.");
// This is the first document.write() on a document.open()ed document
mExecutor->SetParser(this);
mTreeBuilder->setScriptingEnabled(mExecutor->IsScriptEnabled());
bool isSrcdoc = false;
nsCOMPtr<nsIChannel> channel;
rv = GetChannel(getter_AddRefs(channel));
if (NS_SUCCEEDED(rv)) {
isSrcdoc = NS_IsSrcdocChannel(channel);
}
mTreeBuilder->setIsSrcdocDocument(isSrcdoc);
mTokenizer->start();
mExecutor->Start();
if (!aContentType.EqualsLiteral("text/html")) {
mTreeBuilder->StartPlainText();
mTokenizer->StartPlainText();
}
/*
* If you move the following line, be very careful not to cause
* WillBuildModel to be called before the document has had its
* script global object set.
*/
rv = mExecutor->WillBuildModel(eDTDMode_unknown);
NS_ENSURE_SUCCESS(rv, rv);
}
// Return early if the parser has processed EOF
if (mExecutor->IsComplete()) {
return NS_OK;
}
if (aLastCall && aSourceBuffer.IsEmpty() && !aKey) {
// document.close()
NS_ASSERTION(!GetStreamParser(),
"Had stream parser but got document.close().");
if (mDocumentClosed) {
// already closed
return NS_OK;
}
mDocumentClosed = true;
if (!mBlocked && !mInDocumentWrite) {
return ParseUntilBlocked();
}
return NS_OK;
}
// If we got this far, we are dealing with a document.write or
// document.writeln call--not document.close().
NS_ASSERTION(IsInsertionPointDefined(),
"Doc.write reached parser with undefined insertion point.");
NS_ASSERTION(!(GetStreamParser() && !aKey),
"Got a null key in a non-script-created parser");
// XXX is this optimization bogus?
if (aSourceBuffer.IsEmpty()) {
return NS_OK;
}
// This guard is here to prevent document.close from tokenizing synchronously
// while a document.write (that wrote the script that called document.close!)
// is still on the call stack.
mozilla::AutoRestore<bool> guard(mInDocumentWrite);
mInDocumentWrite = true;
// The script is identified by aKey. If there's nothing in the buffer
// chain for that key, we'll insert at the head of the queue.
// When the script leaves something in the queue, a zero-length
// key-holder "buffer" is inserted in the queue. If the same script
// leaves something in the chain again, it will be inserted immediately
// before the old key holder belonging to the same script.
//
// We don't do the actual data insertion yet in the hope that the data gets
// tokenized and there no data or less data to copy to the heap after
// tokenization. Also, this way, we avoid inserting one empty data buffer
// per document.write, which matters for performance when the parser isn't
// blocked and a badly-authored script calls document.write() once per
// input character. (As seen in a benchmark!)
//
// The insertion into the input stream happens conceptually before anything
// gets tokenized. To make sure multi-level document.write works right,
// it's necessary to establish the location of our parser key up front
// in case this is the first write with this key.
//
// In a document.open() case, the first write level has a null key, so that
// case is handled separately, because normal buffers containing data
// have null keys.
// These don't need to be owning references, because they always point to
// the buffer queue and buffers can't be removed from the buffer queue
// before document.write() returns. The buffer queue clean-up happens the
// next time ParseUntilBlocked() is called.
// However, they are made owning just in case the reasoning above is flawed
// and a flaw would lead to worse problems with plain pointers. If this
// turns out to be a perf problem, it's worthwhile to consider making
// prevSearchbuf a plain pointer again.
nsRefPtr<nsHtml5OwningUTF16Buffer> prevSearchBuf;
nsRefPtr<nsHtml5OwningUTF16Buffer> firstLevelMarker;
if (aKey) {
if (mFirstBuffer == mLastBuffer) {
nsHtml5OwningUTF16Buffer* keyHolder = new nsHtml5OwningUTF16Buffer(aKey);
keyHolder->next = mLastBuffer;
mFirstBuffer = keyHolder;
} else if (mFirstBuffer->key != aKey) {
prevSearchBuf = mFirstBuffer;
for (;;) {
if (prevSearchBuf->next == mLastBuffer) {
// key was not found
nsHtml5OwningUTF16Buffer* keyHolder =
new nsHtml5OwningUTF16Buffer(aKey);
keyHolder->next = mFirstBuffer;
mFirstBuffer = keyHolder;
prevSearchBuf = nullptr;
break;
}
if (prevSearchBuf->next->key == aKey) {
// found a key holder
break;
}
prevSearchBuf = prevSearchBuf->next;
}
} // else mFirstBuffer is the keyholder
// prevSearchBuf is the previous buffer before the keyholder or null if
// there isn't one.
} else {
// We have a first-level write in the document.open() case. We insert before
// mLastBuffer, effectively, by making mLastBuffer be a new sentinel object
// and redesignating the previous mLastBuffer as our firstLevelMarker. We
// need to put a marker there, because otherwise additional document.writes
// from nested event loops would insert in the wrong place. Sigh.
mLastBuffer->next = new nsHtml5OwningUTF16Buffer((void*)nullptr);
firstLevelMarker = mLastBuffer;
mLastBuffer = mLastBuffer->next;
}
nsHtml5DependentUTF16Buffer stackBuffer(aSourceBuffer);
while (!mBlocked && stackBuffer.hasMore()) {
stackBuffer.adjust(mLastWasCR);
mLastWasCR = false;
if (stackBuffer.hasMore()) {
int32_t lineNumberSave;
bool inRootContext = (!GetStreamParser() && !aKey);
if (inRootContext) {
mTokenizer->setLineNumber(mRootContextLineNumber);
} else {
// we aren't the root context, so save the line number on the
// *stack* so that we can restore it.
lineNumberSave = mTokenizer->getLineNumber();
}
mLastWasCR = mTokenizer->tokenizeBuffer(&stackBuffer);
if (inRootContext) {
mRootContextLineNumber = mTokenizer->getLineNumber();
} else {
mTokenizer->setLineNumber(lineNumberSave);
}
if (mTreeBuilder->HasScript()) {
mTreeBuilder->Flush(); // Move ops to the executor
rv = mExecutor->FlushDocumentWrite(); // run the ops
NS_ENSURE_SUCCESS(rv, rv);
// Flushing tree ops can cause all sorts of things.
// Return early if the parser got terminated.
if (mExecutor->IsComplete()) {
return NS_OK;
}
}
// Ignore suspension requests
}
}
nsRefPtr<nsHtml5OwningUTF16Buffer> heapBuffer;
if (stackBuffer.hasMore()) {
// The buffer wasn't tokenized to completion. Create a copy of the tail
// on the heap.
heapBuffer = stackBuffer.FalliblyCopyAsOwningBuffer();
if (!heapBuffer) {
// Allocation failed. The parser is now broken.
return mExecutor->MarkAsBroken(NS_ERROR_OUT_OF_MEMORY);
}
}
if (heapBuffer) {
// We have something to insert before the keyholder holding in the non-null
// aKey case and we have something to swap into firstLevelMarker in the
// null aKey case.
if (aKey) {
NS_ASSERTION(mFirstBuffer != mLastBuffer,
"Where's the keyholder?");
// the key holder is still somewhere further down the list from
// prevSearchBuf (which may be null)
if (mFirstBuffer->key == aKey) {
NS_ASSERTION(!prevSearchBuf,
"Non-null prevSearchBuf when mFirstBuffer is the key holder?");
heapBuffer->next = mFirstBuffer;
mFirstBuffer = heapBuffer;
} else {
if (!prevSearchBuf) {
prevSearchBuf = mFirstBuffer;
}
// We created a key holder earlier, so we will find it without walking
// past the end of the list.
while (prevSearchBuf->next->key != aKey) {
prevSearchBuf = prevSearchBuf->next;
}
heapBuffer->next = prevSearchBuf->next;
prevSearchBuf->next = heapBuffer;
}
} else {
NS_ASSERTION(firstLevelMarker, "How come we don't have a marker.");
firstLevelMarker->Swap(heapBuffer);
}
}
if (!mBlocked) { // buffer was tokenized to completion
NS_ASSERTION(!stackBuffer.hasMore(),
"Buffer wasn't tokenized to completion?");
// Scripting semantics require a forced tree builder flush here
mTreeBuilder->Flush(); // Move ops to the executor
rv = mExecutor->FlushDocumentWrite(); // run the ops
NS_ENSURE_SUCCESS(rv, rv);
} else if (stackBuffer.hasMore()) {
// The buffer wasn't tokenized to completion. Tokenize the untokenized
// content in order to preload stuff. This content will be retokenized
// later for normal parsing.
if (!mDocWriteSpeculatorActive) {
mDocWriteSpeculatorActive = true;
if (!mDocWriteSpeculativeTreeBuilder) {
// Lazily initialize if uninitialized
mDocWriteSpeculativeTreeBuilder =
new nsHtml5TreeBuilder(nullptr, mExecutor->GetStage());
mDocWriteSpeculativeTreeBuilder->setScriptingEnabled(
mTreeBuilder->isScriptingEnabled());
mDocWriteSpeculativeTokenizer =
new nsHtml5Tokenizer(mDocWriteSpeculativeTreeBuilder, false);
mDocWriteSpeculativeTokenizer->setInterner(&mAtomTable);
mDocWriteSpeculativeTokenizer->start();
}
mDocWriteSpeculativeTokenizer->resetToDataState();
mDocWriteSpeculativeTreeBuilder->loadState(mTreeBuilder, &mAtomTable);
mDocWriteSpeculativeLastWasCR = false;
}
// Note that with multilevel document.write if we didn't just activate the
// speculator, it's possible that the speculator is now in the wrong state.
// That's OK for the sake of simplicity. The worst that can happen is
// that the speculative loads aren't exactly right. The content will be
// reparsed anyway for non-preload purposes.
// The buffer position for subsequent non-speculative parsing now lives
// in heapBuffer, so it's ok to let the buffer position of stackBuffer
// to be overwritten and not restored below.
while (stackBuffer.hasMore()) {
stackBuffer.adjust(mDocWriteSpeculativeLastWasCR);
if (stackBuffer.hasMore()) {
mDocWriteSpeculativeLastWasCR =
mDocWriteSpeculativeTokenizer->tokenizeBuffer(&stackBuffer);
}
}
mDocWriteSpeculativeTreeBuilder->Flush();
mDocWriteSpeculativeTreeBuilder->DropHandles();
mExecutor->FlushSpeculativeLoads();
}
return NS_OK;
}
PRBool
nsPopupSetFrame::OnCreate(PRInt32 aX, PRInt32 aY, nsIContent* aPopupContent)
{
nsEventStatus status = nsEventStatus_eIgnore;
nsMouseEvent event(PR_TRUE, NS_XUL_POPUP_SHOWING, nsnull,
nsMouseEvent::eReal);
event.point.x = aX;
event.point.y = aY;
if (aPopupContent) {
nsCOMPtr<nsIContent> kungFuDeathGrip(aPopupContent);
nsCOMPtr<nsIPresShell> shell = mPresContext->GetPresShell();
if (shell) {
nsresult rv = shell->HandleDOMEventWithTarget(aPopupContent, &event,
&status);
if ( NS_FAILED(rv) || status == nsEventStatus_eConsumeNoDefault )
return PR_FALSE;
}
// The menu is going to show, and the create handler has executed.
// We should now walk all of our menu item children, checking to see if any
// of them has a command attribute. If so, then several attributes must
// potentially be updated.
nsCOMPtr<nsIDOMDocument> domDoc(do_QueryInterface(aPopupContent->GetDocument()));
PRUint32 count = aPopupContent->GetChildCount();
for (PRUint32 i = 0; i < count; i++) {
nsCOMPtr<nsIContent> grandChild = aPopupContent->GetChildAt(i);
if (grandChild->Tag() == nsXULAtoms::menuitem) {
// See if we have a command attribute.
nsAutoString command;
grandChild->GetAttr(kNameSpaceID_None, nsXULAtoms::command, command);
if (!command.IsEmpty()) {
// We do! Look it up in our document
nsCOMPtr<nsIDOMElement> commandElt;
domDoc->GetElementById(command, getter_AddRefs(commandElt));
nsCOMPtr<nsIContent> commandContent(do_QueryInterface(commandElt));
if ( commandContent ) {
nsAutoString commandDisabled, menuDisabled;
commandContent->GetAttr(kNameSpaceID_None, nsHTMLAtoms::disabled, commandDisabled);
grandChild->GetAttr(kNameSpaceID_None, nsHTMLAtoms::disabled, menuDisabled);
if (!commandDisabled.Equals(menuDisabled)) {
// The menu's disabled state needs to be updated to match the command.
if (commandDisabled.IsEmpty())
grandChild->UnsetAttr(kNameSpaceID_None, nsHTMLAtoms::disabled, PR_TRUE);
else grandChild->SetAttr(kNameSpaceID_None, nsHTMLAtoms::disabled, commandDisabled, PR_TRUE);
}
nsAutoString commandValue, menuValue;
commandContent->GetAttr(kNameSpaceID_None, nsXULAtoms::label, commandValue);
grandChild->GetAttr(kNameSpaceID_None, nsXULAtoms::label, menuValue);
if (!commandValue.Equals(menuValue)) {
// The menu's value state needs to be updated to match the command.
// Note that (unlike the disabled state) if the command has *no* value, we
// assume the menu is supplying its own.
if (!commandValue.IsEmpty())
grandChild->SetAttr(kNameSpaceID_None, nsXULAtoms::label, commandValue, PR_TRUE);
}
// The menu's accesskey needs to be updated to match the command.
// If the command has no accesskey, assume the menu is supplying its own.
commandContent->GetAttr(kNameSpaceID_None, nsHTMLAtoms::accesskey, commandValue);
grandChild->GetAttr(kNameSpaceID_None, nsHTMLAtoms::accesskey, menuValue);
if (!commandValue.Equals(menuValue)) {
if (!commandValue.IsEmpty())
grandChild->SetAttr(kNameSpaceID_None, nsHTMLAtoms::accesskey, commandValue, PR_TRUE);
}
}
}
}
}
}
return PR_TRUE;
}
NS_IMETHODIMP
nsLoadGroup::RemoveRequest(nsIRequest *request, nsISupports* ctxt,
nsresult aStatus)
{
NS_ENSURE_ARG_POINTER(request);
nsresult rv;
if (MOZ_LOG_TEST(gLoadGroupLog, LogLevel::Debug)) {
nsAutoCString nameStr;
request->GetName(nameStr);
LOG(("LOADGROUP [%x]: Removing request %x %s status %x (count=%d).\n",
this, request, nameStr.get(), aStatus, mRequests.EntryCount() - 1));
}
// Make sure we have a owning reference to the request we're about
// to remove.
nsCOMPtr<nsIRequest> kungFuDeathGrip(request);
//
// Remove the request from the group. If this fails, it means that
// the request was *not* in the group so do not update the foreground
// count or it will get messed up...
//
auto entry = static_cast<RequestMapEntry*>(mRequests.Search(request));
if (!entry) {
LOG(("LOADGROUP [%x]: Unable to remove request %x. Not in group!\n",
this, request));
return NS_ERROR_FAILURE;
}
mRequests.RemoveEntry(entry);
// Collect telemetry stats only when default request is a timed channel.
// Don't include failed requests in the timing statistics.
if (mDefaultLoadIsTimed && NS_SUCCEEDED(aStatus)) {
nsCOMPtr<nsITimedChannel> timedChannel = do_QueryInterface(request);
if (timedChannel) {
// Figure out if this request was served from the cache
++mTimedRequests;
TimeStamp timeStamp;
rv = timedChannel->GetCacheReadStart(&timeStamp);
if (NS_SUCCEEDED(rv) && !timeStamp.IsNull()) {
++mCachedRequests;
}
else {
mTimedNonCachedRequestsUntilOnEndPageLoad++;
}
rv = timedChannel->GetAsyncOpen(&timeStamp);
if (NS_SUCCEEDED(rv) && !timeStamp.IsNull()) {
Telemetry::AccumulateTimeDelta(
Telemetry::HTTP_SUBITEM_OPEN_LATENCY_TIME,
mDefaultRequestCreationTime, timeStamp);
}
rv = timedChannel->GetResponseStart(&timeStamp);
if (NS_SUCCEEDED(rv) && !timeStamp.IsNull()) {
Telemetry::AccumulateTimeDelta(
Telemetry::HTTP_SUBITEM_FIRST_BYTE_LATENCY_TIME,
mDefaultRequestCreationTime, timeStamp);
}
TelemetryReportChannel(timedChannel, false);
}
}
if (mRequests.EntryCount() == 0) {
TelemetryReport();
}
// Undo any group priority delta...
if (mPriority != 0)
RescheduleRequest(request, -mPriority);
nsLoadFlags flags;
rv = request->GetLoadFlags(&flags);
if (NS_FAILED(rv)) return rv;
if (!(flags & nsIRequest::LOAD_BACKGROUND)) {
NS_ASSERTION(mForegroundCount > 0, "ForegroundCount messed up");
mForegroundCount -= 1;
// Fire the OnStopRequest out to the observer...
nsCOMPtr<nsIRequestObserver> observer = do_QueryReferent(mObserver);
if (observer) {
LOG(("LOADGROUP [%x]: Firing OnStopRequest for request %x."
"(foreground count=%d).\n", this, request, mForegroundCount));
rv = observer->OnStopRequest(request, ctxt, aStatus);
if (NS_FAILED(rv)) {
LOG(("LOADGROUP [%x]: OnStopRequest for request %x FAILED.\n",
this, request));
}
}
// If that was the last request -> remove ourselves from loadgroup
if (mForegroundCount == 0 && mLoadGroup) {
mLoadGroup->RemoveRequest(this, nullptr, aStatus);
}
}
return rv;
}
nsresult
TextComposition::RequestToCommit(nsIWidget* aWidget, bool aDiscard)
{
// If this composition is already requested to be committed or canceled,
// we don't need to request it again because even if the first request
// failed, new request won't success, probably. And we shouldn't synthesize
// events for committing or canceling composition twice or more times.
if (mRequestedToCommitOrCancel) {
return NS_OK;
}
nsRefPtr<TextComposition> kungFuDeathGrip(this);
const nsAutoString lastData(mLastData);
{
AutoRestore<bool> saveRequestingCancel(mIsRequestingCancel);
AutoRestore<bool> saveRequestingCommit(mIsRequestingCommit);
if (aDiscard) {
mIsRequestingCancel = true;
mIsRequestingCommit = false;
} else {
mIsRequestingCancel = false;
mIsRequestingCommit = true;
}
if (!mIsSynthesizedForTests) {
// FYI: CompositionEvent and TextEvent caused by a call of NotifyIME()
// may be discarded by PresShell if it's not safe to dispatch the
// event.
nsresult rv =
aWidget->NotifyIME(IMENotification(aDiscard ?
REQUEST_TO_CANCEL_COMPOSITION :
REQUEST_TO_COMMIT_COMPOSITION));
if (rv == NS_ERROR_NOT_IMPLEMENTED) {
return rv;
}
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
} else {
// Emulates to commit or cancel the composition
// FYI: These events may be discarded by PresShell if it's not safe to
// dispatch the event.
nsCOMPtr<nsIWidget> widget(aWidget);
nsAutoString commitData(aDiscard ? EmptyString() : lastData);
bool changingData = lastData != commitData;
WidgetTextEvent textEvent(true, NS_TEXT_TEXT, widget);
textEvent.theText = commitData;
textEvent.mFlags.mIsSynthesizedForTests = true;
MaybeDispatchCompositionUpdate(&textEvent);
// If changing the data or committing string isn't empty, we need to
// dispatch text event for setting the composition string without
// IME selection.
if (!Destroyed() && !widget->Destroyed() &&
(changingData || !commitData.IsEmpty())) {
nsEventStatus status = nsEventStatus_eIgnore;
widget->DispatchEvent(&textEvent, status);
}
if (!Destroyed() && !widget->Destroyed()) {
nsEventStatus status = nsEventStatus_eIgnore;
WidgetCompositionEvent endEvent(true, NS_COMPOSITION_END, widget);
endEvent.data = commitData;
endEvent.mFlags.mIsSynthesizedForTests = true;
widget->DispatchEvent(&endEvent, status);
}
}
}
mRequestedToCommitOrCancel = true;
// If the request is performed synchronously, this must be already destroyed.
if (Destroyed()) {
return NS_OK;
}
// Otherwise, synthesize the commit in content.
nsAutoString data(aDiscard ? EmptyString() : lastData);
bool changingData = lastData != data;
if (changingData) {
DispatchCompositionEventRunnable(NS_COMPOSITION_UPDATE, data, true);
}
// If the last composition string and new data are different, we need to
// dispatch text event for removing IME selection. However, if the commit
// string is empty string and it's not changed from the last data, we don't
// need to dispatch text event.
if (changingData || !data.IsEmpty()) {
DispatchCompositionEventRunnable(NS_TEXT_TEXT, data, true);
}
DispatchCompositionEventRunnable(NS_COMPOSITION_END, data, true);
return NS_OK;
}
void
nsTreeContentView::AttributeChanged(nsIDocument* aDocument,
dom::Element* aElement,
int32_t aNameSpaceID,
nsIAtom* aAttribute,
int32_t aModType)
{
// Lots of codepaths under here that do all sorts of stuff, so be safe.
nsCOMPtr<nsIMutationObserver> kungFuDeathGrip(this);
// Make sure this notification concerns us.
// First check the tag to see if it's one that we care about.
nsIAtom* tag = aElement->Tag();
if (mBoxObject && (aElement == mRoot || aElement == mBody)) {
mBoxObject->ClearStyleAndImageCaches();
mBoxObject->Invalidate();
}
// We don't consider non-XUL nodes.
nsIContent* parent = nullptr;
if (!aElement->IsXUL() ||
((parent = aElement->GetParent()) && !parent->IsXUL())) {
return;
}
if (tag != nsGkAtoms::treecol &&
tag != nsGkAtoms::treeitem &&
tag != nsGkAtoms::treeseparator &&
tag != nsGkAtoms::treerow &&
tag != nsGkAtoms::treecell) {
return;
}
// If we have a legal tag, go up to the tree/select and make sure
// that it's ours.
for (nsIContent* element = aElement; element != mBody; element = element->GetParent()) {
if (!element)
return; // this is not for us
nsIAtom *parentTag = element->Tag();
if (element->IsXUL() && parentTag == nsGkAtoms::tree)
return; // this is not for us
}
// Handle changes of the hidden attribute.
if (aAttribute == nsGkAtoms::hidden &&
(tag == nsGkAtoms::treeitem || tag == nsGkAtoms::treeseparator)) {
bool hidden = aElement->AttrValueIs(kNameSpaceID_None,
nsGkAtoms::hidden,
nsGkAtoms::_true, eCaseMatters);
int32_t index = FindContent(aElement);
if (hidden && index >= 0) {
// Hide this row along with its children.
int32_t count = RemoveRow(index);
if (mBoxObject)
mBoxObject->RowCountChanged(index, -count);
}
else if (!hidden && index < 0) {
// Show this row along with its children.
nsCOMPtr<nsIContent> parent = aElement->GetParent();
if (parent) {
InsertRowFor(parent, aElement);
}
}
return;
}
if (tag == nsGkAtoms::treecol) {
if (aAttribute == nsGkAtoms::properties) {
if (mBoxObject) {
nsCOMPtr<nsITreeColumns> cols;
mBoxObject->GetColumns(getter_AddRefs(cols));
if (cols) {
nsCOMPtr<nsIDOMElement> element = do_QueryInterface(aElement);
nsCOMPtr<nsITreeColumn> col;
cols->GetColumnFor(element, getter_AddRefs(col));
mBoxObject->InvalidateColumn(col);
}
}
}
}
else if (tag == nsGkAtoms::treeitem) {
int32_t index = FindContent(aElement);
if (index >= 0) {
Row* row = mRows[index];
if (aAttribute == nsGkAtoms::container) {
bool isContainer =
aElement->AttrValueIs(kNameSpaceID_None, nsGkAtoms::container,
nsGkAtoms::_true, eCaseMatters);
row->SetContainer(isContainer);
if (mBoxObject)
mBoxObject->InvalidateRow(index);
}
else if (aAttribute == nsGkAtoms::open) {
bool isOpen =
aElement->AttrValueIs(kNameSpaceID_None, nsGkAtoms::open,
nsGkAtoms::_true, eCaseMatters);
bool wasOpen = row->IsOpen();
if (! isOpen && wasOpen)
CloseContainer(index);
else if (isOpen && ! wasOpen)
OpenContainer(index);
}
else if (aAttribute == nsGkAtoms::empty) {
bool isEmpty =
aElement->AttrValueIs(kNameSpaceID_None, nsGkAtoms::empty,
nsGkAtoms::_true, eCaseMatters);
row->SetEmpty(isEmpty);
if (mBoxObject)
mBoxObject->InvalidateRow(index);
}
}
}
else if (tag == nsGkAtoms::treeseparator) {
int32_t index = FindContent(aElement);
if (index >= 0) {
if (aAttribute == nsGkAtoms::properties && mBoxObject) {
mBoxObject->InvalidateRow(index);
}
}
}
else if (tag == nsGkAtoms::treerow) {
if (aAttribute == nsGkAtoms::properties) {
nsCOMPtr<nsIContent> parent = aElement->GetParent();
if (parent) {
int32_t index = FindContent(parent);
if (index >= 0 && mBoxObject) {
mBoxObject->InvalidateRow(index);
}
}
}
}
else if (tag == nsGkAtoms::treecell) {
if (aAttribute == nsGkAtoms::ref ||
aAttribute == nsGkAtoms::properties ||
aAttribute == nsGkAtoms::mode ||
aAttribute == nsGkAtoms::src ||
aAttribute == nsGkAtoms::value ||
aAttribute == nsGkAtoms::label) {
nsIContent* parent = aElement->GetParent();
if (parent) {
nsCOMPtr<nsIContent> grandParent = parent->GetParent();
if (grandParent && grandParent->IsXUL()) {
int32_t index = FindContent(grandParent);
if (index >= 0 && mBoxObject) {
// XXX Should we make an effort to invalidate only cell ?
mBoxObject->InvalidateRow(index);
}
}
}
}
}
}
nsresult
nsNPAPIPluginStreamListener::CleanUpStream(NPReason reason)
{
nsresult rv = NS_ERROR_FAILURE;
// Various bits of code in the rest of this method may result in the
// deletion of this object. Use a KungFuDeathGrip to keep ourselves
// alive during cleanup.
nsRefPtr<nsNPAPIPluginStreamListener> kungFuDeathGrip(this);
if (mStreamCleanedUp)
return NS_OK;
mStreamCleanedUp = true;
StopDataPump();
// Release any outstanding redirect callback.
if (mHTTPRedirectCallback) {
mHTTPRedirectCallback->OnRedirectVerifyCallback(NS_ERROR_FAILURE);
mHTTPRedirectCallback = nullptr;
}
// Seekable streams have an extra addref when they are created which must
// be matched here.
if (NP_SEEK == mStreamType && mStreamStarted)
NS_RELEASE_THIS();
if (mStreamListenerPeer) {
mStreamListenerPeer->CancelRequests(NS_BINDING_ABORTED);
mStreamListenerPeer = nullptr;
}
if (!mInst || !mInst->CanFireNotifications())
return rv;
PluginDestructionGuard guard(mInst);
nsNPAPIPlugin* plugin = mInst->GetPlugin();
if (!plugin || !plugin->GetLibrary())
return rv;
NPPluginFuncs* pluginFunctions = plugin->PluginFuncs();
NPP npp;
mInst->GetNPP(&npp);
if (mStreamStarted && pluginFunctions->destroystream) {
NPPAutoPusher nppPusher(npp);
NPError error;
NS_TRY_SAFE_CALL_RETURN(error, (*pluginFunctions->destroystream)(npp, &mNPStreamWrapper->mNPStream, reason), mInst,
NS_PLUGIN_CALL_UNSAFE_TO_REENTER_GECKO);
NPP_PLUGIN_LOG(PLUGIN_LOG_NORMAL,
("NPP DestroyStream called: this=%p, npp=%p, reason=%d, return=%d, url=%s\n",
this, npp, reason, error, mNPStreamWrapper->mNPStream.url));
if (error == NPERR_NO_ERROR)
rv = NS_OK;
}
mStreamStarted = false;
// fire notification back to plugin, just like before
CallURLNotify(reason);
return rv;
}
NS_IMETHODIMP
nsProxyObjectManager::GetProxyForObject(nsIEventTarget* aTarget,
REFNSIID aIID,
nsISupports* aObj,
PRInt32 proxyType,
void** aProxyObject)
{
NS_ENSURE_ARG_POINTER(aObj);
*aProxyObject = nsnull;
// handle special values
nsCOMPtr<nsIThread> thread;
if (aTarget == NS_PROXY_TO_CURRENT_THREAD) {
aTarget = NS_GetCurrentThread();
} else if (aTarget == NS_PROXY_TO_MAIN_THREAD) {
thread = do_GetMainThread();
aTarget = thread.get();
}
// check to see if the target is on our thread. If so, just return the
// real object.
if (!(proxyType & NS_PROXY_ASYNC) && !(proxyType & NS_PROXY_ALWAYS))
{
PRBool result;
aTarget->IsOnCurrentThread(&result);
if (result)
return aObj->QueryInterface(aIID, aProxyObject);
}
nsCOMPtr<nsISupports> realObj = do_QueryInterface(aObj);
// Make sure the object passed in is not a proxy; if it is, be nice and
// build the proxy for the real object.
nsCOMPtr<nsProxyObject> po = do_QueryInterface(aObj);
if (po) {
realObj = po->GetRealObject();
}
nsCOMPtr<nsISupports> realEQ = do_QueryInterface(aTarget);
nsProxyEventKey rootKey(realObj, realEQ, proxyType);
{
nsAutoLock lock(mProxyCreationLock);
nsProxyLockedRefPtr root =
(nsProxyObject*) mProxyObjectMap.Get(&rootKey);
if (root)
return root->LockedFind(aIID, aProxyObject);
}
// don't lock while creating the nsProxyObject
nsProxyObject *newRoot = new nsProxyObject(aTarget, proxyType, realObj);
if (!newRoot)
return NS_ERROR_OUT_OF_MEMORY;
// lock again, and check for a race putting into mProxyObjectMap
{
nsAutoLock lock(mProxyCreationLock);
nsProxyLockedRefPtr root =
(nsProxyObject*) mProxyObjectMap.Get(&rootKey);
if (root) {
delete newRoot;
return root->LockedFind(aIID, aProxyObject);
}
mProxyObjectMap.Put(&rootKey, newRoot);
nsProxyLockedRefPtr kungFuDeathGrip(newRoot);
return newRoot->LockedFind(aIID, aProxyObject);
}
}
