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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_APPS_PLATFORM_APPS_AUDIO_FOCUS_WEB_CONTENTS_OBSERVER_H_
#define CHROME_BROWSER_APPS_PLATFORM_APPS_AUDIO_FOCUS_WEB_CONTENTS_OBSERVER_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(const AudioFocusWebContentsObserver&) = delete;
AudioFocusWebContentsObserver& operator=(
const AudioFocusWebContentsObserver&) = delete;
~AudioFocusWebContentsObserver() override;
private:
friend class content::WebContentsUserData<AudioFocusWebContentsObserver>;
friend class AudioFocusWebContentsObserverBrowserTest;
explicit AudioFocusWebContentsObserver(content::WebContents*);
// content::WebContentsObserver overrides.
void PrimaryPageChanged(content::Page&) 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();
};
} // namespace apps
#endif // CHROME_BROWSER_APPS_PLATFORM_APPS_AUDIO_FOCUS_WEB_CONTENTS_OBSERVER_H_
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