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// Copyright 2015 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.
#ifndef CHROME_BROWSER_MEDIA_ROUTER_PRESENTATION_SERVICE_DELEGATE_IMPL_H_
#define CHROME_BROWSER_MEDIA_ROUTER_PRESENTATION_SERVICE_DELEGATE_IMPL_H_
#include <map>
#include <string>
#include <utility>
#include "base/gtest_prod_util.h"
#include "base/macros.h"
#include "base/memory/scoped_ptr.h"
#include "base/memory/weak_ptr.h"
#include "base/observer_list.h"
#include "chrome/browser/media/router/media_router.h"
#include "chrome/browser/media/router/media_source.h"
#include "chrome/browser/media/router/presentation_request.h"
#include "chrome/browser/media/router/render_frame_host_id.h"
#include "content/public/browser/presentation_service_delegate.h"
#include "content/public/browser/web_contents_observer.h"
#include "content/public/browser/web_contents_user_data.h"
namespace content {
class RenderFrameHost;
class PresentationScreenAvailabilityListener;
class WebContents;
struct PresentationSessionInfo;
struct PresentationSessionMessage;
} // namespace content
namespace media_router {
class MediaRoute;
class MediaSinksObserver;
class PresentationFrameManager;
class PresentationSessionStateObserver;
// Implementation of PresentationServiceDelegate that interfaces an
// instance of WebContents with the Chrome Media Router. It uses the Media
// Router to handle presentation API calls forwarded from
// PresentationServiceImpl. In addition, it also
// provides default presentation URL that is required for creating
// browser-initiated sessions.
// It is scoped to the lifetime of a WebContents, and is managed by the
// associated WebContents.
class PresentationServiceDelegateImpl
: public content::WebContentsUserData<PresentationServiceDelegateImpl>,
public content::PresentationServiceDelegate {
public:
// Observer interface for listening to default presentation request
// changes for the WebContents.
class DefaultPresentationRequestObserver {
public:
virtual ~DefaultPresentationRequestObserver() = default;
// Called when default presentation request for the corresponding
// WebContents is set or changed.
// |default_presentation_info|: New default presentation request.
virtual void OnDefaultPresentationChanged(
const PresentationRequest& default_presentation_request) = 0;
// Called when default presentation request for the corresponding
// WebContents has been removed.
virtual void OnDefaultPresentationRemoved() = 0;
};
// Retrieves the instance of PresentationServiceDelegateImpl that was attached
// to the specified WebContents. If no instance was attached, creates one,
// and attaches it to the specified WebContents.
static PresentationServiceDelegateImpl* GetOrCreateForWebContents(
content::WebContents* web_contents);
~PresentationServiceDelegateImpl() override;
// content::PresentationServiceDelegate implementation.
void AddObserver(
int render_process_id,
int render_frame_id,
content::PresentationServiceDelegate::Observer* observer) override;
void RemoveObserver(int render_process_id, int render_frame_id) override;
bool AddScreenAvailabilityListener(
int render_process_id,
int render_frame_id,
content::PresentationScreenAvailabilityListener* listener) override;
void RemoveScreenAvailabilityListener(
int render_process_id,
int render_frame_id,
content::PresentationScreenAvailabilityListener* listener) override;
void Reset(int render_process_id, int render_frame_id) override;
void SetDefaultPresentationUrl(
int render_process_id,
int render_frame_id,
const std::string& default_presentation_url,
const content::PresentationSessionStartedCallback& callback) override;
void StartSession(
int render_process_id,
int render_frame_id,
const std::string& presentation_url,
const content::PresentationSessionStartedCallback& success_cb,
const content::PresentationSessionErrorCallback& error_cb) override;
void JoinSession(
int render_process_id,
int render_frame_id,
const std::string& presentation_url,
const std::string& presentation_id,
const content::PresentationSessionStartedCallback& success_cb,
const content::PresentationSessionErrorCallback& error_cb) override;
void CloseConnection(int render_process_id,
int render_frame_id,
const std::string& presentation_id) override;
void Terminate(int render_process_id,
int render_frame_id,
const std::string& presentation_id) override;
void ListenForSessionMessages(
int render_process_id,
int render_frame_id,
const content::PresentationSessionInfo& session,
const content::PresentationSessionMessageCallback& message_cb) override;
void SendMessage(int render_process_id,
int render_frame_id,
const content::PresentationSessionInfo& session,
scoped_ptr<content::PresentationSessionMessage> message,
const SendMessageCallback& send_message_cb) override;
void ListenForConnectionStateChange(
int render_process_id,
int render_frame_id,
const content::PresentationSessionInfo& connection,
const content::PresentationConnectionStateChangedCallback&
state_changed_cb) override;
// Callback invoked when a default PresentationRequest is started from a
// browser-initiated dialog.
void OnRouteResponse(const PresentationRequest& request,
const MediaRoute* route,
const std::string& presentation_id,
const std::string& error);
// Adds / removes an observer for listening to default PresentationRequest
// changes. This class does not own |observer|. When |observer| is about to
// be destroyed, |RemoveDefaultPresentationRequestObserver| must be called.
void AddDefaultPresentationRequestObserver(
DefaultPresentationRequestObserver* observer);
void RemoveDefaultPresentationRequestObserver(
DefaultPresentationRequestObserver* observer);
// Gets the default presentation request for the owning tab WebContents. It
// is an error to call this method if the default presentation request does
// not exist.
PresentationRequest GetDefaultPresentationRequest() const;
// Returns true if there is a default presentation request for the owning tab
// WebContents.
bool HasDefaultPresentationRequest() const;
// Returns the WebContents that owns this instance.
content::WebContents* web_contents() const { return web_contents_; }
base::WeakPtr<PresentationServiceDelegateImpl> GetWeakPtr();
void SetMediaRouterForTest(MediaRouter* router);
bool HasScreenAvailabilityListenerForTest(
int render_process_id,
int render_frame_id,
const MediaSource::Id& source_id) const;
private:
friend class content::WebContentsUserData<PresentationServiceDelegateImpl>;
FRIEND_TEST_ALL_PREFIXES(PresentationServiceDelegateImplTest,
DelegateObservers);
FRIEND_TEST_ALL_PREFIXES(PresentationServiceDelegateImplTest,
SetDefaultPresentationUrl);
FRIEND_TEST_ALL_PREFIXES(PresentationServiceDelegateImplTest,
DefaultPresentationRequestObserver);
FRIEND_TEST_ALL_PREFIXES(PresentationServiceDelegateImplTest,
DefaultPresentationUrlCallback);
explicit PresentationServiceDelegateImpl(content::WebContents* web_contents);
// Returns |listener|'s presentation URL as a MediaSource. If |listener| does
// not have a persentation URL, returns the tab mirroring MediaSource.
MediaSource GetMediaSourceFromListener(
content::PresentationScreenAvailabilityListener* listener);
void OnJoinRouteResponse(
int render_process_id,
int render_frame_id,
const content::PresentationSessionInfo& session,
const content::PresentationSessionStartedCallback& success_cb,
const content::PresentationSessionErrorCallback& error_cb,
const MediaRoute* route,
const std::string& presentation_id,
const std::string& error_text);
void OnStartSessionSucceeded(
int render_process_id,
int render_frame_id,
const content::PresentationSessionStartedCallback& success_cb,
const content::PresentationSessionInfo& new_session,
const MediaRoute::Id& route_id);
// References to the WebContents that owns this instance, and associated
// browser profile's MediaRouter instance.
content::WebContents* const web_contents_;
MediaRouter* router_;
scoped_ptr<PresentationFrameManager> frame_manager_;
base::WeakPtrFactory<PresentationServiceDelegateImpl> weak_factory_;
DISALLOW_COPY_AND_ASSIGN(PresentationServiceDelegateImpl);
};
} // namespace media_router
#endif // CHROME_BROWSER_MEDIA_ROUTER_PRESENTATION_SERVICE_DELEGATE_IMPL_H_
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