mirror of
https://github.com/classilla/tenfourfox.git
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216 lines
5.9 KiB
C++
216 lines
5.9 KiB
C++
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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "mozilla/dom/TextTrackList.h"
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#include "mozilla/dom/TextTrackListBinding.h"
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#include "mozilla/dom/TrackEvent.h"
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#include "nsThreadUtils.h"
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#include "mozilla/dom/TextTrackCue.h"
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#include "mozilla/dom/TextTrackManager.h"
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namespace mozilla {
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namespace dom {
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NS_IMPL_CYCLE_COLLECTION_INHERITED(TextTrackList,
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DOMEventTargetHelper,
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mTextTracks,
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mTextTrackManager)
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NS_IMPL_ADDREF_INHERITED(TextTrackList, DOMEventTargetHelper)
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NS_IMPL_RELEASE_INHERITED(TextTrackList, DOMEventTargetHelper)
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NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(TextTrackList)
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NS_INTERFACE_MAP_END_INHERITING(DOMEventTargetHelper)
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TextTrackList::TextTrackList(nsPIDOMWindow* aOwnerWindow)
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: DOMEventTargetHelper(aOwnerWindow)
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{
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}
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TextTrackList::TextTrackList(nsPIDOMWindow* aOwnerWindow,
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TextTrackManager* aTextTrackManager)
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: DOMEventTargetHelper(aOwnerWindow)
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, mTextTrackManager(aTextTrackManager)
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{
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}
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TextTrackList::~TextTrackList()
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{
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}
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void
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TextTrackList::UpdateAndGetShowingCues(nsTArray<RefPtr<TextTrackCue> >& aCues)
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{
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nsTArray< RefPtr<TextTrackCue> > cues;
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for (uint32_t i = 0; i < Length(); i++) {
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TextTrackMode mode = mTextTracks[i]->Mode();
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// If the mode is hidden then we just need to update the active cue list,
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// we don't need to show it on the video.
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if (mode == TextTrackMode::Hidden) {
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mTextTracks[i]->UpdateActiveCueList();
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} else if (mode == TextTrackMode::Showing) {
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// If the mode is showing then we need to update the cue list and show it
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// on the video. GetActiveCueArray() calls UpdateActiveCueList() so we
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// don't need to call it explicitly.
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mTextTracks[i]->GetActiveCueArray(cues);
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aCues.AppendElements(cues);
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}
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}
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}
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JSObject*
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TextTrackList::WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto)
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{
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return TextTrackListBinding::Wrap(aCx, this, aGivenProto);
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}
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TextTrack*
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TextTrackList::IndexedGetter(uint32_t aIndex, bool& aFound)
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{
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aFound = aIndex < mTextTracks.Length();
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if (!aFound) {
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return nullptr;
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}
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return mTextTracks[aIndex];
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}
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TextTrack*
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TextTrackList::operator[](uint32_t aIndex)
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{
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return mTextTracks.SafeElementAt(aIndex, nullptr);
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}
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already_AddRefed<TextTrack>
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TextTrackList::AddTextTrack(TextTrackKind aKind,
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const nsAString& aLabel,
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const nsAString& aLanguage,
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TextTrackMode aMode,
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TextTrackReadyState aReadyState,
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TextTrackSource aTextTrackSource,
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const CompareTextTracks& aCompareTT)
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{
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RefPtr<TextTrack> track = new TextTrack(GetOwner(), this, aKind, aLabel,
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aLanguage, aMode, aReadyState,
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aTextTrackSource);
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AddTextTrack(track, aCompareTT);
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return track.forget();
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}
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void
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TextTrackList::AddTextTrack(TextTrack* aTextTrack,
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const CompareTextTracks& aCompareTT)
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{
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if (mTextTracks.InsertElementSorted(aTextTrack, aCompareTT)) {
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aTextTrack->SetTextTrackList(this);
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CreateAndDispatchTrackEventRunner(aTextTrack, NS_LITERAL_STRING("addtrack"));
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}
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}
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TextTrack*
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TextTrackList::GetTrackById(const nsAString& aId)
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{
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nsAutoString id;
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for (uint32_t i = 0; i < Length(); i++) {
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mTextTracks[i]->GetId(id);
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if (aId.Equals(id)) {
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return mTextTracks[i];
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}
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}
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return nullptr;
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}
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void
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TextTrackList::RemoveTextTrack(TextTrack* aTrack)
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{
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if (mTextTracks.RemoveElement(aTrack)) {
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CreateAndDispatchTrackEventRunner(aTrack, NS_LITERAL_STRING("removetrack"));
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}
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}
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void
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TextTrackList::DidSeek()
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{
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for (uint32_t i = 0; i < mTextTracks.Length(); i++) {
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mTextTracks[i]->SetDirty();
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}
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}
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class TrackEventRunner final: public nsRunnable
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{
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public:
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TrackEventRunner(TextTrackList* aList, nsIDOMEvent* aEvent)
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: mList(aList)
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, mEvent(aEvent)
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{}
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NS_IMETHOD Run() override
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{
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return mList->DispatchTrackEvent(mEvent);
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}
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private:
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RefPtr<TextTrackList> mList;
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RefPtr<nsIDOMEvent> mEvent;
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};
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nsresult
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TextTrackList::DispatchTrackEvent(nsIDOMEvent* aEvent)
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{
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return DispatchTrustedEvent(aEvent);
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}
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void
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TextTrackList::CreateAndDispatchChangeEvent()
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{
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RefPtr<Event> event = NS_NewDOMEvent(this, nullptr, nullptr);
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event->InitEvent(NS_LITERAL_STRING("change"), false, false);
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event->SetTrusted(true);
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nsCOMPtr<nsIRunnable> eventRunner = new TrackEventRunner(this, event);
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NS_DispatchToMainThread(eventRunner);
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}
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void
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TextTrackList::CreateAndDispatchTrackEventRunner(TextTrack* aTrack,
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const nsAString& aEventName)
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{
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nsCOMPtr<nsIThread> thread;
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nsresult rv = NS_GetMainThread(getter_AddRefs(thread));
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if (NS_FAILED(rv)) {
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// If we are not able to get the main-thread object we are shutting down.
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return;
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}
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TrackEventInit eventInit;
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eventInit.mTrack.SetValue().SetAsTextTrack() = aTrack;
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RefPtr<TrackEvent> event =
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TrackEvent::Constructor(this, aEventName, eventInit);
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// Dispatch the TrackEvent asynchronously.
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rv = thread->Dispatch(do_AddRef(new TrackEventRunner(this, event)),
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NS_DISPATCH_NORMAL);
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// If we are shutting down this can file but it's still ok.
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NS_WARN_IF(NS_FAILED(rv));
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}
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HTMLMediaElement*
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TextTrackList::GetMediaElement()
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{
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if (mTextTrackManager) {
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return mTextTrackManager->mMediaElement;
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}
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return nullptr;
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}
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void
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TextTrackList::SetTextTrackManager(TextTrackManager* aTextTrackManager)
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{
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mTextTrackManager = aTextTrackManager;
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}
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} // namespace dom
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} // namespace mozilla
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