Add a SupervisedUserServiceObserver.

chrome/browser/supervised_user/supervised_user_service.cc

 // Copyright 2014 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.
 
 #include "chrome/browser/supervised_user/supervised_user_service.h"
 
 #include "base/command_line.h"
 #include "base/files/file_path.h"
 #include "base/memory/ref_counted.h"
 #include "base/prefs/pref_service.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/profiles/profile_info_cache.h"
 #include "chrome/browser/profiles/profile_manager.h"
 #include "chrome/browser/signin/profile_oauth2_token_service_factory.h"
 #include "chrome/browser/signin/signin_manager_factory.h"
 #include "chrome/browser/supervised_user/custodian_profile_downloader_service.h"
 #include "chrome/browser/supervised_user/custodian_profile_downloader_service_factory.h"
 #include "chrome/browser/supervised_user/permission_request_creator_apiary.h"
 #include "chrome/browser/supervised_user/permission_request_creator_sync.h"
 #include "chrome/browser/supervised_user/supervised_user_constants.h"
 #include "chrome/browser/supervised_user/supervised_user_pref_mapping_service.h"
 #include "chrome/browser/supervised_user/supervised_user_pref_mapping_service_factory.h"
 #include "chrome/browser/supervised_user/supervised_user_registration_utility.h"
+#include "chrome/browser/supervised_user/supervised_user_service_observer.h"
 #include "chrome/browser/supervised_user/supervised_user_settings_service.h"
 #include "chrome/browser/supervised_user/supervised_user_settings_service_factory.h"
 #include "chrome/browser/supervised_user/supervised_user_shared_settings_service_factory.h"
 #include "chrome/browser/supervised_user/supervised_user_site_list.h"
 #include "chrome/browser/supervised_user/supervised_user_sync_service.h"
 #include "chrome/browser/supervised_user/supervised_user_sync_service_factory.h"
 #include "chrome/browser/sync/profile_sync_service.h"
 #include "chrome/browser/sync/profile_sync_service_factory.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/browser_list.h"
@@ skipping 269 matching lines @@
 
 void SupervisedUserService::DidBlockNavigation(
     content::WebContents* web_contents) {
   for (std::vector<NavigationBlockedCallback>::iterator it =
            navigation_blocked_callbacks_.begin();
        it != navigation_blocked_callbacks_.end(); ++it) {
     it->Run(web_contents);
   }
 }
 
+void SupervisedUserService::AddObserver(
+    SupervisedUserServiceObserver* observer) {
+  observer_list_.AddObserver(observer);
+}
+
+void SupervisedUserService::RemoveObserver(
+    SupervisedUserServiceObserver* observer) {
+  observer_list_.RemoveObserver(observer);
+}
+
 #if defined(ENABLE_EXTENSIONS)
 std::string SupervisedUserService::GetDebugPolicyProviderName() const {
   // Save the string space in official builds.
 #ifdef NDEBUG
   NOTREACHED();
   return std::string();
 #else
   return "Supervised User Service";
 #endif
 }
@@ skipping 199 matching lines @@
 }
 
 void SupervisedUserService::OnDefaultFilteringBehaviorChanged() {
   DCHECK(ProfileIsSupervised());
 
   int behavior_value = profile_->GetPrefs()->GetInteger(
       prefs::kDefaultSupervisedUserFilteringBehavior);
   SupervisedUserURLFilter::FilteringBehavior behavior =
       SupervisedUserURLFilter::BehaviorFromInt(behavior_value);
   url_filter_context_.SetDefaultFilteringBehavior(behavior);
+
+  FOR_EACH_OBSERVER(
+      SupervisedUserServiceObserver, observer_list_, OnURLFilterChanged());
 }
 
 void SupervisedUserService::UpdateSiteLists() {
 #if defined(ENABLE_EXTENSIONS)
   url_filter_context_.LoadWhitelists(GetActiveSiteLists());
+
+  FOR_EACH_OBSERVER(
+      SupervisedUserServiceObserver, observer_list_, OnURLFilterChanged());
 #endif
 }
 
 void SupervisedUserService::LoadBlacklist(const base::FilePath& path) {
   url_filter_context_.LoadBlacklist(path);
+
+  FOR_EACH_OBSERVER(
+      SupervisedUserServiceObserver, observer_list_, OnURLFilterChanged());
 }
 
 bool SupervisedUserService::AccessRequestsEnabled() {
   ProfileSyncService* service =
       ProfileSyncServiceFactory::GetForProfile(profile_);
   GoogleServiceAuthError::State state = service->GetAuthError().state();
   // We allow requesting access if Sync is working or has a transient error.
   return (state == GoogleServiceAuthError::NONE ||
           state == GoogleServiceAuthError::CONNECTION_FAILED ||
           state == GoogleServiceAuthError::SERVICE_UNAVAILABLE);
@@ skipping 252 matching lines @@
       profile_->GetPrefs()->GetDictionary(prefs::kSupervisedUserManualHosts);
   scoped_ptr<std::map<std::string, bool> > host_map(
       new std::map<std::string, bool>());
   for (base::DictionaryValue::Iterator it(*dict); !it.IsAtEnd(); it.Advance()) {
     bool allow = false;
     bool result = it.value().GetAsBoolean(&allow);
     DCHECK(result);
     (*host_map)[it.key()] = allow;
   }
   url_filter_context_.SetManualHosts(host_map.Pass());
+
+  FOR_EACH_OBSERVER(
+      SupervisedUserServiceObserver, observer_list_, OnURLFilterChanged());
 }
 
 void SupervisedUserService::UpdateManualURLs() {
   const base::DictionaryValue* dict =
       profile_->GetPrefs()->GetDictionary(prefs::kSupervisedUserManualURLs);
   scoped_ptr<std::map<GURL, bool> > url_map(new std::map<GURL, bool>());
   for (base::DictionaryValue::Iterator it(*dict); !it.IsAtEnd(); it.Advance()) {
     bool allow = false;
     bool result = it.value().GetAsBoolean(&allow);
     DCHECK(result);
     (*url_map)[GURL(it.key())] = allow;
   }
   url_filter_context_.SetManualURLs(url_map.Pass());
+
+  FOR_EACH_OBSERVER(
+      SupervisedUserServiceObserver, observer_list_, OnURLFilterChanged());
 }
 
 void SupervisedUserService::OnBrowserSetLastActive(Browser* browser) {
   bool profile_became_active = profile_->IsSameProfile(browser->profile());
   if (!is_profile_active_ && profile_became_active)
     content::RecordAction(UserMetricsAction("ManagedUsers_OpenProfile"));
   else if (is_profile_active_ && !profile_became_active)
     content::RecordAction(UserMetricsAction("ManagedUsers_SwitchProfile"));
 
   is_profile_active_ = profile_became_active;
 }
 
 std::string SupervisedUserService::GetSupervisedUserName() const {
 #if defined(OS_CHROMEOS)
   // The active user can be NULL in unit tests.
   if (user_manager::UserManager::Get()->GetActiveUser()) {
     return UTF16ToUTF8(user_manager::UserManager::Get()->GetUserDisplayName(
         user_manager::UserManager::Get()->GetActiveUser()->GetUserID()));
   }
   return std::string();
 #else
   return profile_->GetPrefs()->GetString(prefs::kProfileName);
 #endif
 }