1 // Copyright (c) 2012 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_CHROMEOS_EXTENSIONS_DEFAULT_APP_ORDER_H_ 6 #define CHROME_BROWSER_CHROMEOS_EXTENSIONS_DEFAULT_APP_ORDER_H_ 7 8 #include <string> 9 #include <vector> 10 11 #include "base/basictypes.h" 12 #include "base/synchronization/waitable_event.h" 13 14 namespace chromeos { 15 namespace default_app_order { 16 17 // ExternalLoader checks FILE_DEFAULT_APP_ORDER and loads it if the file 18 // exists. Otherwise, it uses the default built-in order. The file loading runs 19 // asynchronously on start up except for the browser restart path, in which 20 // case, start up will wait for the file check to finish because user profile 21 // might need to access the ordinals data. 22 class ExternalLoader { 23 public: 24 // Constructs an ExternalLoader and starts file loading. |async| is true to 25 // load the file asynchronously on the blocking pool. 26 explicit ExternalLoader(bool async); 27 ~ExternalLoader(); 28 29 const std::vector<std::string>& GetAppIds(); 30 31 private: 32 void Load(); 33 34 // A vector of app id strings that defines the default order of apps. 35 std::vector<std::string> app_ids_; 36 37 base::WaitableEvent loaded_; 38 39 DISALLOW_COPY_AND_ASSIGN(ExternalLoader); 40 }; 41 42 // Gets the ordered list of app ids. 43 void Get(std::vector<std::string>* app_ids); 44 45 } // namespace default_app_order 46 } // namespace chromeos 47 48 #endif // CHROME_BROWSER_CHROMEOS_EXTENSIONS_DEFAULT_APP_ORDER_H_ 49
