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