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// Copyright 2015 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef COMPONENTS_MEDIA_ROUTER_BROWSER_PRESENTATION_PRESENTATION_MEDIA_SINKS_OBSERVER_H_
#define COMPONENTS_MEDIA_ROUTER_BROWSER_PRESENTATION_PRESENTATION_MEDIA_SINKS_OBSERVER_H_
#include <memory>
#include <vector>
#include "base/memory/raw_ptr.h"
#include "components/media_router/browser/media_sinks_observer.h"
#include "content/public/browser/presentation_service_delegate.h"
#include "third_party/blink/public/mojom/presentation/presentation.mojom.h"
namespace content {
class PresentationScreenAvailabilityListener;
}
namespace media_router {
class MediaRouter;
class MediaSource;
// Receives SinkQueryResults for |source| from |router| and propagates results
// to |listener|. |listener| is notified only when availability status has
// changed, i.e. sinks have become available or sinks are no longer available.
class PresentationMediaSinksObserver : public MediaSinksObserver {
public:
// |router|: Media router that publishes sink query results.
// |listener|: Notified when sinks availability changes.
// |source|: Filters available sink.
// |origin|: Origin of request.
// Does not take ownership of |listener| or |router|.
PresentationMediaSinksObserver(
MediaRouter* router,
content::PresentationScreenAvailabilityListener* listener,
const MediaSource& source,
const url::Origin& origin);
PresentationMediaSinksObserver(const PresentationMediaSinksObserver&) =
delete;
PresentationMediaSinksObserver& operator=(
const PresentationMediaSinksObserver&) = delete;
~PresentationMediaSinksObserver() override;
// MediaSinksObserver implementation.
void OnSinksReceived(const std::vector<MediaSink>& result) override;
content::PresentationScreenAvailabilityListener* listener() const {
return listener_;
}
private:
raw_ptr<content::PresentationScreenAvailabilityListener> listener_;
blink::mojom::ScreenAvailability previous_availability_;
};
} // namespace media_router
#endif // COMPONENTS_MEDIA_ROUTER_BROWSER_PRESENTATION_PRESENTATION_MEDIA_SINKS_OBSERVER_H_
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