1 // Copyright 2018 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4 
5 #ifndef SERVICES_MEDIA_SESSION_PUBLIC_CPP_TEST_AUDIO_FOCUS_TEST_UTIL_H_
6 #define SERVICES_MEDIA_SESSION_PUBLIC_CPP_TEST_AUDIO_FOCUS_TEST_UTIL_H_
7 
8 #include <vector>
9 
10 #include "base/component_export.h"
11 #include "base/optional.h"
12 #include "base/run_loop.h"
13 #include "mojo/public/cpp/bindings/pending_remote.h"
14 #include "mojo/public/cpp/bindings/receiver.h"
15 #include "services/media_session/public/mojom/audio_focus.mojom.h"
16 
17 namespace media_session {
18 namespace test {
19 
COMPONENT_EXPORT(MEDIA_SESSION_TEST_SUPPORT_CPP)20 class COMPONENT_EXPORT(MEDIA_SESSION_TEST_SUPPORT_CPP) TestAudioFocusObserver
21     : public mojom::AudioFocusObserver {
22  public:
23   TestAudioFocusObserver();
24   ~TestAudioFocusObserver() override;
25 
26   void OnFocusGained(
27       media_session::mojom::AudioFocusRequestStatePtr session) override;
28   void OnFocusLost(
29       media_session::mojom::AudioFocusRequestStatePtr session) override;
30 
31   void WaitForGainedEvent();
32   void WaitForLostEvent();
33 
34   mojo::PendingRemote<media_session::mojom::AudioFocusObserver>
35   BindNewPipeAndPassRemote();
36 
37   const media_session::mojom::AudioFocusRequestStatePtr& focus_gained_session()
38       const {
39     return focus_gained_session_;
40   }
41 
42   const media_session::mojom::AudioFocusRequestStatePtr& focus_lost_session()
43       const {
44     return focus_lost_session_;
45   }
46 
47   // These store the order of notifications that were received by the observer.
48   enum class NotificationType {
49     kFocusGained,
50     kFocusLost,
51   };
52   const std::vector<NotificationType>& notifications() const {
53     return notifications_;
54   }
55 
56  private:
57   mojo::Receiver<mojom::AudioFocusObserver> receiver_{this};
58 
59   // These store the values we received.
60   media_session::mojom::AudioFocusRequestStatePtr focus_gained_session_;
61   media_session::mojom::AudioFocusRequestStatePtr focus_lost_session_;
62 
63   // If either of these are true we will quit the run loop if we observe a gain
64   // or lost event.
65   bool wait_for_gained_ = false;
66   bool wait_for_lost_ = false;
67 
68   std::vector<NotificationType> notifications_;
69 
70   base::RunLoop run_loop_;
71 };
72 
73 COMPONENT_EXPORT(MEDIA_SESSION_TEST_SUPPORT_CPP)
74 media_session::mojom::MediaSessionInfoPtr GetMediaSessionInfoSync(
75     media_session::mojom::MediaSession*);
76 
77 }  // namespace test
78 }  // namespace media_session
79 
80 #endif  // SERVICES_MEDIA_SESSION_PUBLIC_CPP_TEST_AUDIO_FOCUS_TEST_UTIL_H_
81