| // Copyright (c) 2012 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_PLUGINS_PLUGIN_STATUS_PREF_SETTER_H_ |
| #define CHROME_BROWSER_PLUGINS_PLUGIN_STATUS_PREF_SETTER_H_ |
| |
| #include <vector> |
| |
| #include "base/memory/ref_counted.h" |
| #include "base/memory/weak_ptr.h" |
| #include "base/prefs/pref_member.h" |
| #include "content/public/browser/notification_observer.h" |
| #include "content/public/browser/notification_registrar.h" |
| |
| class PluginPrefs; |
| class PrefService; |
| class Profile; |
| |
| namespace content { |
| struct WebPluginInfo; |
| } |
| |
| // Helper class modeled after BooleanPrefMember to (asynchronously) update |
| // preferences related to plugin enable status. |
| // It should only be used from the UI thread. The client has to make sure that |
| // the passed profile outlives this object. |
| class PluginStatusPrefSetter : public content::NotificationObserver { |
| public: |
| PluginStatusPrefSetter(); |
| virtual ~PluginStatusPrefSetter(); |
| |
| // Binds the preferences in the profile's PrefService, notifying |observer| if |
| // any value changes. |
| // This asynchronously calls the PluginService to get the list of installed |
| // plug-ins. |
| void Init(Profile* profile, |
| const BooleanPrefMember::NamedChangeCallback& observer); |
| |
| bool IsClearPluginLSODataEnabled() const { |
| return clear_plugin_lso_data_enabled_.GetValue(); |
| } |
| |
| bool IsPepperFlashSettingsEnabled() const { |
| return pepper_flash_settings_enabled_.GetValue(); |
| } |
| |
| // content::NotificationObserver methods: |
| virtual void Observe(int type, |
| const content::NotificationSource& source, |
| const content::NotificationDetails& details) OVERRIDE; |
| |
| private: |
| void StartUpdate(); |
| void GotPlugins(scoped_refptr<PluginPrefs> plugin_prefs, |
| const std::vector<content::WebPluginInfo>& plugins); |
| |
| content::NotificationRegistrar registrar_; |
| // Weak pointer. |
| Profile* profile_; |
| base::WeakPtrFactory<PluginStatusPrefSetter> factory_; |
| |
| // Whether clearing LSO data is supported. |
| BooleanPrefMember clear_plugin_lso_data_enabled_; |
| // Whether we should show Pepper Flash-specific settings. |
| BooleanPrefMember pepper_flash_settings_enabled_; |
| |
| DISALLOW_COPY_AND_ASSIGN(PluginStatusPrefSetter); |
| }; |
| |
| #endif // CHROME_BROWSER_PLUGINS_PLUGIN_STATUS_PREF_SETTER_H_ |