TabContentsContainer::~TabContentsContainer()
{
if(tab_contents_)
{
RemoveObservers();
}
}
void
nsCategoryObserver::ListenerDied()
{
MOZ_ASSERT(NS_IsMainThread());
RemoveObservers();
mCallback = nullptr;
mClosure = nullptr;
}
NS_IMETHODIMP
nsCategoryObserver::Observe(nsISupports* aSubject, const char* aTopic,
const PRUnichar* aData) {
if (!mListener)
return NS_OK;
if (strcmp(aTopic, NS_XPCOM_SHUTDOWN_OBSERVER_ID) == 0) {
mHash.Clear();
mListener->CategoryCleared();
RemoveObservers();
return NS_OK;
}
if (!aData ||
!nsDependentString(aData).Equals(NS_ConvertASCIItoUTF16(mCategory)))
return NS_OK;
nsCAutoString str;
nsCOMPtr<nsISupportsCString> strWrapper(do_QueryInterface(aSubject));
if (strWrapper)
strWrapper->GetData(str);
if (strcmp(aTopic, NS_XPCOM_CATEGORY_ENTRY_ADDED_OBSERVER_ID) == 0) {
// We may get an add notification even when we already have an entry. This
// is due to the notification happening asynchronously, so if the entry gets
// added and an nsCategoryObserver gets instantiated before events get
// processed, we'd get the notification for an existing entry.
// Do nothing in that case.
if (mHash.Get(str, nullptr))
return NS_OK;
nsCOMPtr<nsICategoryManager> catMan =
do_GetService(NS_CATEGORYMANAGER_CONTRACTID);
if (!catMan)
return NS_OK;
nsCString entryValue;
catMan->GetCategoryEntry(mCategory.get(),
str.get(),
getter_Copies(entryValue));
mHash.Put(str, entryValue);
mListener->EntryAdded(entryValue);
} else if (strcmp(aTopic, NS_XPCOM_CATEGORY_ENTRY_REMOVED_OBSERVER_ID) == 0) {
nsCAutoString val;
if (mHash.Get(str, &val)) {
mHash.Remove(str);
mListener->EntryRemoved(val);
}
} else if (strcmp(aTopic, NS_XPCOM_CATEGORY_CLEARED_OBSERVER_ID) == 0) {
mHash.Clear();
mListener->CategoryCleared();
}
return NS_OK;
}
nsresult
TimelineConsumers::Observe(nsISupports* aSubject,
const char* aTopic,
const char16_t* aData)
{
if (!nsCRT::strcmp(aTopic, NS_XPCOM_SHUTDOWN_OBSERVER_ID)) {
sInShutdown = true;
RemoveObservers();
return NS_OK;
}
MOZ_ASSERT(false, "TimelineConsumers got unexpected topic!");
return NS_ERROR_UNEXPECTED;
}
void TabContentsContainer::ChangeTabContents(TabContents* contents)
{
if(tab_contents_)
{
view::View *v = (tab_contents_->puttyView());
tab_contents_->WasHidden();
RemoveChildView(v);
RemoveObservers();
}
tab_contents_ = contents;
// When detaching the last tab of the browser ChangeTabContents is invoked
// with NULL. Don't attempt to do anything in that case.
if(tab_contents_)
{
view::View *v = (contents->puttyView());
AddChildView(v);
SetLayoutManager(new view::FillLayout());
Layout();
AddObservers();
tab_contents_->ShowContents();
}
}
void
nsCategoryObserver::ListenerDied() {
mListener = nullptr;
RemoveObservers();
}
void
nsCategoryObserver::ListenerDied() {
RemoveObservers();
}
