| // Copyright 2018 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_APPS_PLATFORM_APPS_AUDIO_FOCUS_WEB_CONTENTS_OBSERVER_H_ |
| #define CHROME_BROWSER_APPS_PLATFORM_APPS_AUDIO_FOCUS_WEB_CONTENTS_OBSERVER_H_ |
| |
| #include "base/macros.h" |
| #include "base/unguessable_token.h" |
| #include "content/public/browser/web_contents_observer.h" |
| #include "content/public/browser/web_contents_user_data.h" |
| |
| namespace apps { |
| |
| // AudioFocusWebContentsObserver manages audio focus group ids for apps. This |
| // means that apps will have seperate audio focus from the browser. |
| class AudioFocusWebContentsObserver |
| : public content::WebContentsObserver, |
| public content::WebContentsUserData<AudioFocusWebContentsObserver> { |
| public: |
| ~AudioFocusWebContentsObserver() override; |
| |
| private: |
| friend class content::WebContentsUserData<AudioFocusWebContentsObserver>; |
| friend class AudioFocusWebContentsObserver; |
| friend class AudioFocusWebContentsObserverBrowserTest; |
| |
| explicit AudioFocusWebContentsObserver(content::WebContents*); |
| |
| // content::WebContentsObserver overrides. |
| void DidFinishNavigation(content::NavigationHandle*) override; |
| |
| // The audio focus group id is used to group media sessions together for apps. |
| base::UnguessableToken audio_focus_group_id_ = base::UnguessableToken::Null(); |
| |
| WEB_CONTENTS_USER_DATA_KEY_DECL(); |
| |
| DISALLOW_COPY_AND_ASSIGN(AudioFocusWebContentsObserver); |
| }; |
| |
| } // namespace apps |
| |
| #endif // CHROME_BROWSER_APPS_PLATFORM_APPS_AUDIO_FOCUS_WEB_CONTENTS_OBSERVER_H_ |