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// Copyright 2016 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "media/base/cdm_context.h"
#include "media/base/pipeline_metadata.h"
#include "url/gurl.h"
namespace media {
// This class is an observer of media player events.
class MEDIA_EXPORT MediaObserver {
virtual ~MediaObserver();
// Called when the media element entered/exited fullscreen.
virtual void OnEnteredFullscreen() = 0;
virtual void OnExitedFullscreen() = 0;
// Called when the media element starts/stops being the dominant visible
// content.
virtual void OnBecameDominantVisibleContent(bool is_dominant) {}
// Called when CDM is attached to the media element. The |cdm_context| is
// only guaranteed to be valid in this call.
virtual void OnSetCdm(CdmContext* cdm_context) = 0;
// Called after demuxer is initialized.
virtual void OnMetadataChanged(const PipelineMetadata& metadata) = 0;
// Called to indicate whether the site requests that remote playback be
// disabled. The "disabled" naming corresponds with the
// "disableRemotePlayback" media element attribute, as described in the
// Remote Playback API spec:
virtual void OnRemotePlaybackDisabled(bool disabled) = 0;
// Called when the media is playing/paused.
virtual void OnPlaying() = 0;
virtual void OnPaused() = 0;
// Called when a poster image URL is set, which happens when media is loaded
// or the poster attribute is changed.
virtual void OnSetPoster(const GURL& poster) = 0;
} // namespace media