import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

dom/media/VideoTrackList.h

@@ -0,0 +1,59 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim:set ts=2 sw=2 et tw=78: */
+/* 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/. */
+
+#ifndef mozilla_dom_VideoTrackList_h
+#define mozilla_dom_VideoTrackList_h
+
+#include "MediaTrack.h"
+#include "MediaTrackList.h"
+
+namespace mozilla {
+namespace dom {
+
+class VideoTrack;
+
+class VideoTrackList : public MediaTrackList
+{
+public:
+  VideoTrackList(nsPIDOMWindowInner* aOwnerWindow,
+                 HTMLMediaElement* aMediaElement)
+    : MediaTrackList(aOwnerWindow, aMediaElement)
+    , mSelectedIndex(-1)
+  {}
+
+  JSObject* WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override;
+
+  VideoTrack* operator[](uint32_t aIndex);
+
+  void RemoveTrack(const RefPtr<MediaTrack>& aTrack) override;
+
+  void EmptyTracks() override;
+
+  VideoTrack* GetSelectedTrack();
+
+  // WebIDL
+  int32_t SelectedIndex() const
+  {
+    return mSelectedIndex;
+  }
+
+  VideoTrack* IndexedGetter(uint32_t aIndex, bool& aFound);
+
+  VideoTrack* GetTrackById(const nsAString& aId);
+
+  friend class VideoTrack;
+
+protected:
+  VideoTrackList* AsVideoTrackList() override { return this; }
+
+private:
+  int32_t mSelectedIndex;
+};
+
+} // namespace dom
+} // namespace mozilla
+
+#endif // mozilla_dom_VideoTrackList_h