1 // Copyright (c) 2011 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 CHROME_BROWSER_PLUGIN_UPDATER_H_ 6 #define CHROME_BROWSER_PLUGIN_UPDATER_H_ 7 #pragma once 8 9 #include <set> 10 #include <vector> 11 12 #include "base/basictypes.h" 13 #include "base/file_path.h" 14 #include "base/memory/singleton.h" 15 #include "content/common/notification_observer.h" 16 17 class DictionaryValue; 18 class ListValue; 19 class NotificationDetails; 20 class NotificationSource; 21 class Profile; 22 23 namespace webkit { 24 namespace npapi { 25 class PluginGroup; 26 struct WebPluginInfo; 27 } 28 } 29 30 class PluginUpdater : public NotificationObserver { 31 public: 32 // Get a list of all the plugin groups. The caller should take ownership 33 // of the returned ListValue. 34 static ListValue* GetPluginGroupsData(); 35 36 // Enable or disable a plugin group. 37 void EnablePluginGroup(bool enable, const string16& group_name); 38 39 // Enable or disable a specific plugin file. 40 void EnablePlugin(bool enable, const FilePath::StringType& file_path); 41 42 // Enable or disable plugin groups as defined by the user's preference file. 43 void UpdatePluginGroupsStateFromPrefs(Profile* profile); 44 45 // Write the enable/disable status to the user's preference file. 46 void UpdatePreferences(Profile* profile, int delay_ms); 47 48 // NotificationObserver method overrides 49 virtual void Observe(NotificationType type, 50 const NotificationSource& source, 51 const NotificationDetails& details); 52 53 static PluginUpdater* GetInstance(); 54 55 private: 56 PluginUpdater(); ~PluginUpdater()57 virtual ~PluginUpdater() {} 58 59 // Called on the file thread to get the data necessary to update the saved 60 // preferences. The profile pointer is only to be passed to the UI thread. 61 static void GetPreferencesDataOnFileThread(void* profile); 62 63 // Called on the UI thread with the plugin data to save the preferences. 64 static void OnUpdatePreferences( 65 Profile* profile, 66 const std::vector<webkit::npapi::WebPluginInfo>& plugins, 67 const std::vector<webkit::npapi::PluginGroup>& groups); 68 69 // Queues sending the notification that plugin data has changed. This is done 70 // so that if a bunch of changes happen, we only send one notification. 71 void NotifyPluginStatusChanged(); 72 73 // Used for the post task to notify that plugin enabled status changed. 74 static void OnNotifyPluginStatusChanged(); 75 76 static DictionaryValue* CreatePluginFileSummary( 77 const webkit::npapi::WebPluginInfo& plugin); 78 79 // Force plugins to be enabled or disabled due to policy. 80 // |disabled_list| contains the list of StringValues of the names of the 81 // policy-disabled plugins, |exceptions_list| the policy-allowed plugins, 82 // and |enabled_list| the policy-enabled plugins. 83 void UpdatePluginsStateFromPolicy(const ListValue* disabled_list, 84 const ListValue* exceptions_list, 85 const ListValue* enabled_list); 86 87 void ListValueToStringSet(const ListValue* src, std::set<string16>* dest); 88 89 // Needed to allow singleton instantiation using private constructor. 90 friend struct DefaultSingletonTraits<PluginUpdater>; 91 92 bool notify_pending_; 93 94 DISALLOW_COPY_AND_ASSIGN(PluginUpdater); 95 }; 96 97 #endif // CHROME_BROWSER_PLUGIN_UPDATER_H_ 98