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 12namespace base { 13class FilePath; 14class Time; 15} 16 17struct WebApplicationInfo; 18 19namespace extensions { 20class 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. 31std::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: The app created is always marked as a bookmark app. 38// NOTE: This function does file IO and should not be called on the UI thread. 39// NOTE: The caller takes ownership of the directory at extension->path() on the 40// returned object. 41scoped_refptr<Extension> ConvertWebAppToExtension( 42 const WebApplicationInfo& web_app_info, 43 const base::Time& create_time, 44 const base::FilePath& extensions_dir); 45 46} // namespace extensions 47 48#endif // CHROME_BROWSER_EXTENSIONS_CONVERT_WEB_APP_H_ 49