| // Copyright 2017 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_CONTENT_SETTINGS_SOUND_CONTENT_SETTING_OBSERVER_H_ |
| #define CHROME_BROWSER_CONTENT_SETTINGS_SOUND_CONTENT_SETTING_OBSERVER_H_ |
| |
| #include "base/memory/raw_ptr.h" |
| #include "base/scoped_observation.h" |
| #include "build/build_config.h" |
| #include "components/content_settings/core/browser/content_settings_observer.h" |
| #include "components/content_settings/core/browser/host_content_settings_map.h" |
| #include "components/content_settings/core/common/content_settings.h" |
| #include "components/prefs/pref_change_registrar.h" |
| #include "content/public/browser/web_contents_observer.h" |
| #include "content/public/browser/web_contents_user_data.h" |
| |
| namespace content { |
| class Page; |
| } |
| |
| class SoundContentSettingObserver |
| : public content::WebContentsObserver, |
| public content::WebContentsUserData<SoundContentSettingObserver>, |
| public content_settings::Observer { |
| public: |
| // The reason why the site was muted. This is logged to UKM, so add new values |
| // at the end. |
| enum MuteReason { |
| kSiteException = 0, // Muted due to an explicit block exception. |
| kMuteByDefault = 1, // Muted due to the default sound setting being set to |
| // block. |
| }; |
| |
| SoundContentSettingObserver(const SoundContentSettingObserver&) = delete; |
| SoundContentSettingObserver& operator=(const SoundContentSettingObserver&) = |
| delete; |
| |
| ~SoundContentSettingObserver() override; |
| |
| // content::WebContentsObserver implementation. |
| void ReadyToCommitNavigation( |
| content::NavigationHandle* navigation_handle) override; |
| void PrimaryPageChanged(content::Page& page) override; |
| void OnAudioStateChanged(bool audible) override; |
| |
| // content_settings::Observer implementation. |
| void OnContentSettingChanged( |
| const ContentSettingsPattern& primary_pattern, |
| const ContentSettingsPattern& secondary_pattern, |
| ContentSettingsTypeSet content_type_set) override; |
| |
| bool HasLoggedSiteMutedUkmForTesting() { return logged_site_muted_ukm_; } |
| |
| private: |
| explicit SoundContentSettingObserver(content::WebContents* web_contents); |
| friend class content::WebContentsUserData<SoundContentSettingObserver>; |
| |
| void MuteOrUnmuteIfNecessary(); |
| ContentSetting GetCurrentContentSetting(); |
| |
| // Records SiteMuted UKM event if site is muted and sound is playing. |
| void CheckSoundBlocked(bool is_audible); |
| |
| // Record a UKM event that audio was blocked on the page. |
| void RecordSiteMutedUKM(); |
| |
| // Determine the reason why audio was blocked on the page. |
| MuteReason GetSiteMutedReason(); |
| |
| #if !BUILDFLAG(IS_ANDROID) |
| // Update the autoplay policy on the attached |WebContents|. |
| void UpdateAutoplayPolicy(); |
| |
| // Manages registration of pref change observers. |
| PrefChangeRegistrar pref_change_registrar_; |
| #endif |
| |
| // True if we have already logged a SiteMuted UKM event since last navigation. |
| bool logged_site_muted_ukm_ = false; |
| |
| raw_ptr<HostContentSettingsMap> host_content_settings_map_; |
| |
| base::ScopedObservation<HostContentSettingsMap, content_settings::Observer> |
| observation_{this}; |
| |
| WEB_CONTENTS_USER_DATA_KEY_DECL(); |
| }; |
| |
| #endif // CHROME_BROWSER_CONTENT_SETTINGS_SOUND_CONTENT_SETTING_OBSERVER_H_ |