void
MediaManager::OnNavigation(uint64_t aWindowID)
{
NS_ASSERTION(NS_IsMainThread(), "OnNavigation called off main thread");
// Invalidate this window. The runnables check this value before making
// a call to content.
// This is safe since we're on main-thread, and the windowlist can only
// be added to from the main-thread
StreamListeners* listeners = GetWindowListeners(aWindowID);
if (!listeners) {
return;
}
uint32_t length = listeners->Length();
for (uint32_t i = 0; i < length; i++) {
nsRefPtr<GetUserMediaCallbackMediaStreamListener> listener =
listeners->ElementAt(i);
listener->Invalidate();
listener->Remove();
}
listeners->Clear();
GetActiveWindows()->Remove(aWindowID);
}
nsresult
MediaManager::MediaCaptureWindowStateInternal(nsIDOMWindow* aWindow, bool* aVideo,
bool* aAudio)
{
// We need to return the union of all streams in all innerwindows that
// correspond to that outerwindow.
// Iterate the docshell tree to find all the child windows, find
// all the listeners for each one, get the booleans, and merge the
// results.
nsCOMPtr<nsPIDOMWindow> piWin = do_QueryInterface(aWindow);
if (piWin) {
if (piWin->GetCurrentInnerWindow() || piWin->IsInnerWindow()) {
uint64_t windowID;
if (piWin->GetCurrentInnerWindow()) {
windowID = piWin->GetCurrentInnerWindow()->WindowID();
} else {
windowID = piWin->WindowID();
}
StreamListeners* listeners = GetActiveWindows()->Get(windowID);
if (listeners) {
uint32_t length = listeners->Length();
for (uint32_t i = 0; i < length; ++i) {
nsRefPtr<GetUserMediaCallbackMediaStreamListener> listener =
listeners->ElementAt(i);
if (listener->CapturingVideo()) {
*aVideo = true;
}
if (listener->CapturingAudio()) {
*aAudio = true;
}
if (*aAudio && *aVideo) {
return NS_OK; // no need to continue iterating
}
}
}
}
// iterate any children of *this* window (iframes, etc)
nsCOMPtr<nsIDocShellTreeNode> node =
do_QueryInterface(piWin->GetDocShell());
if (node) {
int32_t i, count;
node->GetChildCount(&count);
for (i = 0; i < count; ++i) {
nsCOMPtr<nsIDocShellTreeItem> item;
node->GetChildAt(i, getter_AddRefs(item));
nsCOMPtr<nsPIDOMWindow> win = do_GetInterface(item);
MediaCaptureWindowStateInternal(win, aVideo, aAudio);
if (*aAudio && *aVideo) {
return NS_OK; // no need to continue iterating
}
}
}
}
return NS_OK;
}
void
MediaManager::OnNavigation(PRUint64 aWindowID)
{
// Invalidate this window. The runnables check this value before making
// a call to content.
StreamListeners* listeners = mActiveWindows.Get(aWindowID);
if (!listeners) {
return;
}
PRUint32 length = listeners->Length();
for (PRUint32 i = 0; i < length; i++) {
nsRefPtr<GetUserMediaCallbackMediaStreamListener> listener =
listeners->ElementAt(i);
listener->Invalidate();
listener = nsnull;
}
listeners->Clear();
mActiveWindows.Remove(aWindowID);
}
