1 // Copyright 2013 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_UI_APP_LIST_FAST_SHOW_PICKLER_H_ 6 #define CHROME_BROWSER_UI_APP_LIST_FAST_SHOW_PICKLER_H_ 7 8 #include <string> 9 10 #include "base/memory/scoped_ptr.h" 11 #include "base/pickle.h" 12 #include "ui/app_list/app_list_model.h" 13 14 // Functions for pickling/unpickling AppListModel for fast show. Fast show is 15 // where the app list is put on the screen using data retrieved from a cache 16 // before the extension system has loaded. 17 class FastShowPickler { 18 public: 19 // The version that this pickler understands. 20 static const int kVersion; 21 22 // Pickles a subset of the data in |model| that is useful for doing a fast 23 // show of the app list. 24 static scoped_ptr<Pickle> PickleAppListModelForFastShow( 25 app_list::AppListModel* model); 26 27 // Given a Pickle created by PickleAppListModelForFastShow(), this creates an 28 // AppListModel that represents it. 29 static scoped_ptr<app_list::AppListModel> UnpickleAppListModelForFastShow( 30 Pickle* pickle); 31 32 // Copies parts that are needed to show the app list quickly on startup from 33 // |src| to |dest|. 34 static void CopyOver( 35 app_list::AppListModel* src, app_list::AppListModel* dest); 36 37 private: 38 // Private static methods allow friend access to AppListItem methods. 39 static scoped_ptr<app_list::AppListItem> UnpickleAppListItem( 40 PickleIterator* it); 41 static bool PickleAppListItem(Pickle* pickle, app_list::AppListItem* item); 42 static void CopyOverItem(app_list::AppListItem* src_item, 43 app_list::AppListItem* dest_item); 44 }; 45 46 #endif // CHROME_BROWSER_UI_APP_LIST_FAST_SHOW_PICKLER_H_ 47
