Mirror app list hierarchy data in profile prefs.

chrome/browser/ui/app_list/app_list_prefs.h

Index: chrome/browser/ui/app_list/app_list_prefs.h
diff --git a/chrome/browser/ui/app_list/app_list_prefs.h b/chrome/browser/ui/app_list/app_list_prefs.h
new file mode 100644
index 0000000000000000000000000000000000000000..ef6e94de71c63ce4b39bbde7650897fa4bdbacb8
--- /dev/null
+++ b/chrome/browser/ui/app_list/app_list_prefs.h
@@ -0,0 +1,91 @@
+// 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.
+
+#ifndef CHROME_BROWSER_UI_APP_LIST_APP_LIST_PREFS_H_
+#define CHROME_BROWSER_UI_APP_LIST_APP_LIST_PREFS_H_
+
+#include <set>
+#include <string>
+#include <vector>
+
+#include "base/basictypes.h"
+#include "base/observer_list.h"
+#include "base/values.h"
+#include "components/keyed_service/core/keyed_service.h"
+#include "sync/api/string_ordinal.h"
+
+class PrefService;
+
+namespace content {
+class BrowserContext;
+}
+
+namespace user_prefs {
+class PrefRegistrySyncable;
+}
+
+namespace app_list {
+
+class AppListPrefs : public KeyedService {
+ public:
+  // An app list item's information. This is enough data to reconstruct the full
+  // hierarchy and ordering information of the app list.
+  struct AppListInfo {
+    enum ItemType {
+      ITEM_TYPE_INVALID = 0,
+      ITEM_TYPE_BEGIN,
+      APP_ITEM = ITEM_TYPE_BEGIN,
+      FOLDER_ITEM,
+
+      // Do not change the order of this enum.
+      // When adding values, remember to update ITEM_TYPE_END.
+      ITEM_TYPE_END = FOLDER_ITEM,
+    };
+    AppListInfo();
+    ~AppListInfo();
+
+    // The id of the folder containing this item.
+    std::string parent_id;
+
+    // The name of this item.
+    std::string name;
+
+    // The position of this item in the app list.
+    syncer::StringOrdinal position;
+
+    // The type of app list item being represented.
+    ItemType item_type;
+  };
+
+  static void RegisterProfilePrefs(user_prefs::PrefRegistrySyncable* registry);
+
+  static AppListPrefs* Get(content::BrowserContext* context);
+
+  static AppListPrefs* Create(PrefService* pref_service);
+
+  virtual ~AppListPrefs();
+
+  // Sets the app list info for |id|.
+  void SetAppListInfo(const std::string& id, const AppListInfo& info);
+
+  // Gets the app list info for |id|.
+  scoped_ptr<AppListInfo> GetAppListInfo(const std::string& id) const;
+
+  // Gets a map of all AppListInfo objects in the prefs.
+  void GetAllAppListInfos(std::map<std::string, AppListInfo>* out) const;
+
+  // Deletes the app list info for |id|.
+  void DeleteAppListInfo(const std::string& id);
+
+ private:
+  explicit AppListPrefs(PrefService* pref_service);
+
+  PrefService* pref_service_;
+
+  DISALLOW_COPY_AND_ASSIGN(AppListPrefs);
+};
+
+}  // namespace app_list
+
+#endif  // CHROME_BROWSER_UI_APP_LIST_APP_LIST_PREFS_H_