Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 192 insertions, 0 deletions

diff --git a/dom/media/webvtt/TextTrackList.cpp b/dom/media/webvtt/TextTrackList.cpp
new file mode 100644
index 0000000000..d5611bdaf9
--- /dev/null
+++ b/dom/media/webvtt/TextTrackList.cpp
@@ -0,0 +1,192 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "mozilla/dom/TextTrackList.h"
+
+#include "mozilla/DebugOnly.h"
+#include "mozilla/dom/Event.h"
+#include "mozilla/dom/TextTrackListBinding.h"
+#include "mozilla/dom/TrackEvent.h"
+#include "nsThreadUtils.h"
+#include "nsGlobalWindow.h"
+#include "mozilla/dom/TextTrackCue.h"
+#include "mozilla/dom/TextTrackManager.h"
+
+namespace mozilla::dom {
+
+NS_IMPL_CYCLE_COLLECTION_INHERITED(TextTrackList, DOMEventTargetHelper,
+                                   mTextTracks, mTextTrackManager)
+
+NS_IMPL_ADDREF_INHERITED(TextTrackList, DOMEventTargetHelper)
+NS_IMPL_RELEASE_INHERITED(TextTrackList, DOMEventTargetHelper)
+NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(TextTrackList)
+NS_INTERFACE_MAP_END_INHERITING(DOMEventTargetHelper)
+
+TextTrackList::TextTrackList(nsPIDOMWindowInner* aOwnerWindow)
+    : DOMEventTargetHelper(aOwnerWindow) {}
+
+TextTrackList::TextTrackList(nsPIDOMWindowInner* aOwnerWindow,
+                             TextTrackManager* aTextTrackManager)
+    : DOMEventTargetHelper(aOwnerWindow),
+      mTextTrackManager(aTextTrackManager) {}
+
+TextTrackList::~TextTrackList() = default;
+
+void TextTrackList::GetShowingCues(nsTArray<RefPtr<TextTrackCue>>& aCues) {
+  // Only Subtitles and Captions can show on the screen.
+  nsTArray<RefPtr<TextTrackCue>> cues;
+  for (uint32_t i = 0; i < Length(); i++) {
+    if (mTextTracks[i]->Mode() == TextTrackMode::Showing &&
+        (mTextTracks[i]->Kind() == TextTrackKind::Subtitles ||
+         mTextTracks[i]->Kind() == TextTrackKind::Captions)) {
+      mTextTracks[i]->GetActiveCueArray(cues);
+      aCues.AppendElements(cues);
+    }
+  }
+}
+
+JSObject* TextTrackList::WrapObject(JSContext* aCx,
+                                    JS::Handle<JSObject*> aGivenProto) {
+  return TextTrackList_Binding::Wrap(aCx, this, aGivenProto);
+}
+
+TextTrack* TextTrackList::IndexedGetter(uint32_t aIndex, bool& aFound) {
+  aFound = aIndex < mTextTracks.Length();
+  if (!aFound) {
+    return nullptr;
+  }
+  return mTextTracks[aIndex];
+}
+
+TextTrack* TextTrackList::operator[](uint32_t aIndex) {
+  return mTextTracks.SafeElementAt(aIndex, nullptr);
+}
+
+already_AddRefed<TextTrack> TextTrackList::AddTextTrack(
+    TextTrackKind aKind, const nsAString& aLabel, const nsAString& aLanguage,
+    TextTrackMode aMode, TextTrackReadyState aReadyState,
+    TextTrackSource aTextTrackSource, const CompareTextTracks& aCompareTT) {
+  RefPtr<TextTrack> track =
+      new TextTrack(GetOwner(), this, aKind, aLabel, aLanguage, aMode,
+                    aReadyState, aTextTrackSource);
+  AddTextTrack(track, aCompareTT);
+  return track.forget();
+}
+
+void TextTrackList::AddTextTrack(TextTrack* aTextTrack,
+                                 const CompareTextTracks& aCompareTT) {
+  if (mTextTracks.Contains(aTextTrack)) {
+    return;
+  }
+  mTextTracks.InsertElementSorted(aTextTrack, aCompareTT);
+  aTextTrack->SetTextTrackList(this);
+  CreateAndDispatchTrackEventRunner(aTextTrack, u"addtrack"_ns);
+}
+
+TextTrack* TextTrackList::GetTrackById(const nsAString& aId) {
+  nsAutoString id;
+  for (uint32_t i = 0; i < Length(); i++) {
+    mTextTracks[i]->GetId(id);
+    if (aId.Equals(id)) {
+      return mTextTracks[i];
+    }
+  }
+  return nullptr;
+}
+
+void TextTrackList::RemoveTextTrack(TextTrack* aTrack) {
+  if (mTextTracks.RemoveElement(aTrack)) {
+    CreateAndDispatchTrackEventRunner(aTrack, u"removetrack"_ns);
+  }
+}
+
+class TrackEventRunner : public Runnable {
+ public:
+  TrackEventRunner(TextTrackList* aList, Event* aEvent)
+      : Runnable("dom::TrackEventRunner"), mList(aList), mEvent(aEvent) {}
+
+  NS_IMETHOD Run() override { return mList->DispatchTrackEvent(mEvent); }
+
+  RefPtr<TextTrackList> mList;
+
+ private:
+  RefPtr<Event> mEvent;
+};
+
+nsresult TextTrackList::DispatchTrackEvent(Event* aEvent) {
+  return DispatchTrustedEvent(aEvent);
+}
+
+void TextTrackList::CreateAndDispatchChangeEvent() {
+  MOZ_ASSERT(NS_IsMainThread());
+  nsPIDOMWindowInner* win = GetOwner();
+  if (!win) {
+    return;
+  }
+
+  RefPtr<Event> event = NS_NewDOMEvent(this, nullptr, nullptr);
+
+  event->InitEvent(u"change"_ns, false, false);
+  event->SetTrusted(true);
+
+  nsCOMPtr<nsIRunnable> eventRunner = new TrackEventRunner(this, event);
+  nsGlobalWindowInner::Cast(win)->Dispatch(TaskCategory::Other,
+                                           eventRunner.forget());
+}
+
+void TextTrackList::CreateAndDispatchTrackEventRunner(
+    TextTrack* aTrack, const nsAString& aEventName) {
+  DebugOnly<nsresult> rv;
+  nsCOMPtr<nsIEventTarget> target = GetMainThreadSerialEventTarget();
+  if (!target) {
+    // If we are not able to get the main-thread object we are shutting down.
+    return;
+  }
+
+  TrackEventInit eventInit;
+  eventInit.mTrack.SetValue().SetAsTextTrack() = aTrack;
+  RefPtr<TrackEvent> event =
+      TrackEvent::Constructor(this, aEventName, eventInit);
+
+  // Dispatch the TrackEvent asynchronously.
+  rv = target->Dispatch(do_AddRef(new TrackEventRunner(this, event)),
+                        NS_DISPATCH_NORMAL);
+
+  // If we are shutting down this can file but it's still ok.
+  NS_WARNING_ASSERTION(NS_SUCCEEDED(rv), "Dispatch failed");
+}
+
+HTMLMediaElement* TextTrackList::GetMediaElement() {
+  if (mTextTrackManager) {
+    return mTextTrackManager->mMediaElement;
+  }
+  return nullptr;
+}
+
+void TextTrackList::SetTextTrackManager(TextTrackManager* aTextTrackManager) {
+  mTextTrackManager = aTextTrackManager;
+}
+
+void TextTrackList::SetCuesInactive() {
+  for (uint32_t i = 0; i < Length(); i++) {
+    mTextTracks[i]->SetCuesInactive();
+  }
+}
+
+bool TextTrackList::AreTextTracksLoaded() {
+  // Return false if any texttrack is not loaded.
+  for (uint32_t i = 0; i < Length(); i++) {
+    if (!mTextTracks[i]->IsLoaded()) {
+      return false;
+    }
+  }
+  return true;
+}
+
+nsTArray<RefPtr<TextTrack>>& TextTrackList::GetTextTrackArray() {
+  return mTextTracks;
+}
+
+}  // namespace mozilla::dom