1 // Copyright (c) 2011 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_EXTENSIONS_CONVERT_WEB_APP_H_ 6 #define CHROME_BROWSER_EXTENSIONS_CONVERT_WEB_APP_H_ 7 8 #include <string> 9 10 #include "base/memory/ref_counted.h" 11 12 namespace base { 13 class FilePath; 14 class Time; 15 } 16 17 struct WebApplicationInfo; 18 19 namespace extensions { 20 class Extension; 21 22 // Generates a version number for an extension from a time. The goal is to make 23 // use of the version number to communicate the date in a human readable form, 24 // while maintaining high enough resolution to change each time an app is 25 // reinstalled. The version that is returned has the format: 26 // 27 // <year>.<month>.<day>.<fraction> 28 // 29 // fraction is represented as a number between 0 and 2^16-1. Each unit is 30 // ~1.32 seconds. 31 std::string ConvertTimeToExtensionVersion(const base::Time& time); 32 33 // Wraps the specified web app in an extension. The extension is created 34 // unpacked in the system temp dir. Returns a valid extension that the caller 35 // should take ownership on success, or NULL and |error| on failure. 36 // 37 // NOTE: This function does file IO and should not be called on the UI thread. 38 // NOTE: The caller takes ownership of the directory at extension->path() on the 39 // returned object. 40 scoped_refptr<Extension> ConvertWebAppToExtension( 41 const WebApplicationInfo& web_app_info, 42 const base::Time& create_time, 43 const base::FilePath& extensions_dir); 44 45 } // namespace extensions 46 47 #endif // CHROME_BROWSER_EXTENSIONS_CONVERT_WEB_APP_H_ 48
