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// Copyright 2018 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_BROWSER_DEVTOOLS_PROTOCOL_CAST_HANDLER_H_
#define CHROME_BROWSER_DEVTOOLS_PROTOCOL_CAST_HANDLER_H_
#include <memory>
#include <string>
#include <vector>
#include "base/containers/flat_set.h"
#include "base/memory/raw_ptr.h"
#include "base/memory/weak_ptr.h"
#include "chrome/browser/devtools/protocol/cast.h"
#include "chrome/browser/ui/media_router/media_sink_with_cast_modes_observer.h"
#include "chrome/browser/ui/media_router/query_result_manager.h"
#include "components/media_router/browser/issues_observer.h"
#include "components/media_router/common/mojom/media_router.mojom.h"
namespace content {
class WebContents;
}
namespace media_router {
class MediaRouter;
class StartPresentationContext;
} // namespace media_router
class CastHandler : public protocol::Cast::Backend,
public media_router::MediaSinkWithCastModesObserver {
public:
CastHandler(content::WebContents* web_contents,
protocol::UberDispatcher* dispatcher);
CastHandler(const CastHandler&) = delete;
CastHandler& operator=(const CastHandler&) = delete;
~CastHandler() override;
// protocol::Cast::Backend:
protocol::Response SetSinkToUse(const std::string& in_sink_name) override;
void StartDesktopMirroring(
const std::string& in_sink_name,
std::unique_ptr<StartDesktopMirroringCallback> callback) override;
void StartTabMirroring(
const std::string& in_sink_name,
std::unique_ptr<StartTabMirroringCallback> callback) override;
protocol::Response StopCasting(const std::string& in_sink_name) override;
protocol::Response Enable(
std::optional<std::string> in_presentation_url) override;
protocol::Response Disable() override;
// media_router::MediaSinkWithCastModesObserver:
void OnSinksUpdated(
const std::vector<media_router::MediaSinkWithCastModes>& sinks) override;
private:
friend class CastHandlerTest;
class MediaRoutesObserver;
class IssuesObserver;
// Constructor that does not wire the handler to a dispatcher. Used in tests.
explicit CastHandler(content::WebContents* web_contents);
// Initializes the handler if it hasn't been initialized yet. Returns
// Response::Success() if initialization succeeds, otherwise an error.
protocol::Response EnsureInitialized();
void StartPresentation(
const std::string& sink_name,
std::unique_ptr<media_router::StartPresentationContext> context);
// Returns an empty ID if a sink was not found.
media_router::MediaSink::Id GetSinkIdByName(
const std::string& sink_name) const;
// Returns an empty ID if a route was not found.
media_router::MediaRoute::Id GetRouteIdForSink(
const media_router::MediaSink::Id& sink_id) const;
void StartObservingForSinks(std::optional<std::string> presentation_url);
// Sends a notification that sinks (or their associated routes) have been
// updated.
void SendSinkUpdate();
void OnDesktopMirroringStarted(
std::unique_ptr<StartDesktopMirroringCallback> callback,
media_router::mojom::RoutePresentationConnectionPtr connection,
const media_router::RouteRequestResult& result);
void OnTabMirroringStarted(
std::unique_ptr<StartTabMirroringCallback> callback,
media_router::mojom::RoutePresentationConnectionPtr connection,
const media_router::RouteRequestResult& result);
void OnPresentationStarted(
std::unique_ptr<media_router::StartPresentationContext> context,
media_router::mojom::RoutePresentationConnectionPtr connection,
const media_router::RouteRequestResult& result);
void OnIssue(const std::string& issue);
raw_ptr<content::WebContents> web_contents_;
raw_ptr<media_router::MediaRouter> router_;
std::unique_ptr<media_router::QueryResultManager> query_result_manager_;
std::unique_ptr<MediaRoutesObserver> routes_observer_;
std::unique_ptr<IssuesObserver> issues_observer_;
std::vector<media_router::MediaSinkWithCastModes> sinks_;
// IDs of Media Routes initiated through the handler. This may contain routes
// that have already been terminated.
base::flat_set<media_router::MediaRoute::Id> initiated_routes_;
std::unique_ptr<protocol::Cast::Frontend> frontend_;
base::WeakPtrFactory<CastHandler> weak_factory_{this};
};
#endif // CHROME_BROWSER_DEVTOOLS_PROTOCOL_CAST_HANDLER_H_
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