Mirror app list hierarchy data in profile prefs.

chrome/browser/ui/app_list/app_list_syncable_service.cc

 // Copyright 2013 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/ui/app_list/app_list_syncable_service.h"
 
 #include "base/command_line.h"
 #include "chrome/browser/apps/drive/drive_app_provider.h"
 #include "chrome/browser/chrome_notification_types.h"
 #include "chrome/browser/extensions/extension_service.h"
 #include "chrome/browser/profiles/profile.h"
+#include "chrome/browser/ui/app_list/app_list_prefs.h"
 #include "chrome/browser/ui/app_list/app_list_service.h"
 #include "chrome/browser/ui/app_list/extension_app_item.h"
 #include "chrome/browser/ui/app_list/extension_app_model_builder.h"
 #include "chrome/browser/ui/host_desktop.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/extensions/extension_constants.h"
 #include "chrome/grit/generated_resources.h"
 #include "content/public/browser/notification_source.h"
 #include "extensions/browser/extension_prefs.h"
 #include "extensions/browser/extension_system.h"
@@ skipping 174 matching lines @@
     VLOG(2) << owner_ << " OnAppListItemUpdated: " << item->ToDebugString();
     owner_->UpdateSyncItem(item);
   }
 
   AppListSyncableService* owner_;
   AppListItem* adding_item_;  // Unowned pointer to item being added.
 
   DISALLOW_COPY_AND_ASSIGN(ModelObserver);
 };
 
+// AppListSyncableService::PrefUpdater
+
+class AppListSyncableService::PrefUpdater : public AppListModelObserver {
+ public:
+  explicit PrefUpdater(AppListPrefs* app_list_prefs, AppListModel* model)
+      : app_list_prefs_(app_list_prefs), model_(model) {
+    model_->AddObserver(this);
+  }
+
+  virtual ~PrefUpdater() { model_->RemoveObserver(this); }
+
+ private:
+  void UpdatePrefsFromAppListItem(AppListItem* item) {
+    // Write synced data to local pref.
+    AppListPrefs::AppListInfo info;
+    if (item->GetItemType() == AppListFolderItem::kItemType)
+      info.item_type = AppListPrefs::AppListInfo::FOLDER_ITEM;
+    else if (item->GetItemType() == ExtensionAppItem::kItemType)
+      info.item_type = AppListPrefs::AppListInfo::APP_ITEM;
+    else
+      NOTREACHED();
+
+    info.parent_id = item->folder_id();
+    info.position = item->position();
+    info.name = item->name();
+
+    app_list_prefs_->SetAppListInfo(item->id(), info);
+  }
+
+  // Overridden from AppListModelObserver:
+  virtual void OnAppListItemAdded(AppListItem* item) OVERRIDE {
+    UpdatePrefsFromAppListItem(item);
+  }
+
+  virtual void OnAppListItemWillBeDeleted(AppListItem* item) OVERRIDE {
+    app_list_prefs_->DeleteAppListInfo(item->id());
+  }
+
+  virtual void OnAppListItemUpdated(AppListItem* item) OVERRIDE {
+    UpdatePrefsFromAppListItem(item);
+  }
+
+  AppListPrefs* app_list_prefs_;
+  AppListModel* model_;
+
+  DISALLOW_COPY_AND_ASSIGN(PrefUpdater);
+};
+
 // AppListSyncableService
 
 AppListSyncableService::AppListSyncableService(
     Profile* profile,
     extensions::ExtensionSystem* extension_system)
     : profile_(profile),
       extension_system_(extension_system),
       model_(new AppListModel),
       initial_sync_data_processed_(false),
       first_app_list_sync_(true) {
@@ skipping 41 matching lines @@
   DCHECK(profile_);
   if (app_list::switches::IsAppListSyncEnabled()) {
     VLOG(1) << this << ": AppListSyncableService: InitializeWithService.";
     SyncStarted();
     apps_builder_->InitializeWithService(this);
   } else {
     VLOG(1) << this << ": AppListSyncableService: InitializeWithProfile.";
     apps_builder_->InitializeWithProfile(profile_, model_.get());
   }
 
+  pref_updater_.reset(
+      new PrefUpdater(AppListPrefs::Get(profile_), model_.get()));
+
   if (app_list::switches::IsDriveAppsInAppListEnabled())
     drive_app_provider_.reset(new DriveAppProvider(profile_));
 }
 
 void AppListSyncableService::ResetDriveAppProviderForTest() {
   drive_app_provider_.reset();
 }
 
 void AppListSyncableService::Shutdown() {
   // DriveAppProvider touches other KeyedServices in its dtor and needs be
@@ skipping 648 matching lines @@
   } else {
     res += " { " + item_name + " }";
     res += " [" + item_ordinal.ToDebugString() + "]";
     if (!parent_id.empty())
       res += " <" + parent_id.substr(0, 8) + ">";
   }
   return res;
 }
 
 }  // namespace app_list