104 lines
2.7 KiB
C++
104 lines
2.7 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim:set ts=2 sw=2 sts=2 et cindent: */
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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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#ifndef mozilla_dom_ImageTrackList_h
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#define mozilla_dom_ImageTrackList_h
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#include "mozilla/Attributes.h"
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#include "mozilla/dom/ImageDecoderBinding.h"
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#include "nsCycleCollectionParticipant.h"
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#include "nsWrapperCache.h"
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class nsIGlobalObject;
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namespace mozilla {
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class MediaResult;
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namespace image {
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struct DecodeFrameCountResult;
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struct DecodeMetadataResult;
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} // namespace image
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namespace dom {
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class ImageTrack;
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class Promise;
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class ImageTrackList final : public nsISupports, public nsWrapperCache {
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public:
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NS_DECL_CYCLE_COLLECTING_ISUPPORTS
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NS_DECL_CYCLE_COLLECTION_WRAPPERCACHE_CLASS(ImageTrackList)
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public:
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ImageTrackList(nsIGlobalObject* aParent, ImageDecoder* aDecoder);
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void Initialize(ErrorResult& aRv);
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void MaybeRejectReady(const MediaResult& aResult);
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void Destroy();
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void OnMetadataSuccess(const image::DecodeMetadataResult& aMetadata);
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void OnFrameCountSuccess(const image::DecodeFrameCountResult& aResult);
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void SetSelectedIndex(int32_t aIndex, bool aSelected);
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protected:
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~ImageTrackList();
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public:
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nsIGlobalObject* GetParentObject() const { return mParent; }
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JSObject* WrapObject(JSContext* aCx,
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JS::Handle<JSObject*> aGivenProto) override;
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Promise* Ready() const { return mReadyPromise; }
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bool IsReady() const { return mIsReady; }
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uint32_t Length() const { return mTracks.Length(); }
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int32_t SelectedIndex() const { return mSelectedIndex; }
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ImageTrack* GetSelectedTrack() const {
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if (mSelectedIndex < 0) {
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return nullptr;
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}
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return mTracks[mSelectedIndex];
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}
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ImageTrack* GetDefaultTrack() const {
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if (mTracks.IsEmpty()) {
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return nullptr;
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}
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return mTracks[0];
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}
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ImageTrack* IndexedGetter(uint32_t aIndex, bool& aFound) const {
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if (aIndex >= mTracks.Length()) {
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aFound = false;
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return nullptr;
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}
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MOZ_ASSERT(mTracks[aIndex]);
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aFound = true;
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return mTracks[aIndex];
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}
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private:
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// ImageTrackList can run on either main thread or worker thread.
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void AssertIsOnOwningThread() const {
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NS_ASSERT_OWNINGTHREAD(ImageTrackList);
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}
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nsCOMPtr<nsIGlobalObject> mParent;
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RefPtr<ImageDecoder> mDecoder;
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AutoTArray<RefPtr<ImageTrack>, 1> mTracks;
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RefPtr<Promise> mReadyPromise;
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int32_t mSelectedIndex = -1;
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bool mIsReady = false;
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};
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} // namespace dom
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} // namespace mozilla
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#endif // mozilla_dom_ImageTrackList_h
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