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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim:set ts=2 sw=2 sts=2 et cindent: */
/* 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_MediaMetadata_h
#define mozilla_dom_MediaMetadata_h
#include "js/TypeDecls.h"
#include "mozilla/Attributes.h"
#include "mozilla/dom/BindingDeclarations.h"
#include "mozilla/dom/MediaSessionBinding.h"
#include "nsCycleCollectionParticipant.h"
#include "nsWrapperCache.h"
class nsIGlobalObject;
namespace mozilla {
class ErrorResult;
namespace dom {
class MediaMetadataBase {
public:
MediaMetadataBase() = default;
MediaMetadataBase(const nsString& aTitle, const nsString& aArtist,
const nsString& aAlbum)
: mTitle(aTitle), mArtist(aArtist), mAlbum(aAlbum) {}
static MediaMetadataBase EmptyData() { return MediaMetadataBase(); }
nsString mTitle;
nsString mArtist;
nsString mAlbum;
CopyableTArray<MediaImage> mArtwork;
};
class MediaMetadata final : public nsISupports,
public nsWrapperCache,
private MediaMetadataBase {
public:
// Ref counting and cycle collection
NS_DECL_CYCLE_COLLECTING_ISUPPORTS
NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS(MediaMetadata)
// WebIDL methods
nsIGlobalObject* GetParentObject() const;
JSObject* WrapObject(JSContext* aCx,
JS::Handle<JSObject*> aGivenProto) override;
static already_AddRefed<MediaMetadata> Constructor(
const GlobalObject& aGlobal, const MediaMetadataInit& aInit,
ErrorResult& aRv);
void GetTitle(nsString& aRetVal) const;
void SetTitle(const nsAString& aTitle);
void GetArtist(nsString& aRetVal) const;
void SetArtist(const nsAString& aArtist);
void GetAlbum(nsString& aRetVal) const;
void SetAlbum(const nsAString& aAlbum);
void GetArtwork(JSContext* aCx, nsTArray<JSObject*>& aRetVal,
ErrorResult& aRv) const;
void SetArtwork(JSContext* aCx, const Sequence<JSObject*>& aArtwork,
ErrorResult& aRv);
// This would expose MediaMetadataBase's members as public, so use this method
// carefully. Now we only use this when we want to update the metadata to the
// media session controller in the chrome process.
MediaMetadataBase* AsMetadataBase() { return this; }
private:
MediaMetadata(nsIGlobalObject* aParent, const nsString& aTitle,
const nsString& aArtist, const nsString& aAlbum);
~MediaMetadata() = default;
// Perform `convert artwork algorithm`. Set `mArtwork` to a converted
// `aArtwork` if the conversion works, otherwise throw a type error in `aRv`.
void SetArtworkInternal(const Sequence<MediaImage>& aArtwork,
ErrorResult& aRv);
nsCOMPtr<nsIGlobalObject> mParent;
};
} // namespace dom
} // namespace mozilla
#endif // mozilla_dom_MediaMetadata_h