// Copyright (c) 2011 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. #ifndef CHROME_BROWSER_EXTENSIONS_CONVERT_WEB_APP_H_ #define CHROME_BROWSER_EXTENSIONS_CONVERT_WEB_APP_H_ #pragma once #include <string> #include "base/memory/ref_counted.h" class Extension; namespace base { class Time; } struct WebApplicationInfo; // Generates a version number for an extension from a time. The goal is to make // use of the version number to communicate the date in a human readable form, // while maintaining high enough resolution to change each time an app is // reinstalled. The version that is returned has the format: // // <year>.<month>.<day>.<fraction> // // fraction is represented as a number between 0 and 2^16-1. Each unit is // ~1.32 seconds. std::string ConvertTimeToExtensionVersion(const base::Time& time); // Wraps the specified web app in an extension. The extension is created // unpacked in the system temp dir. Returns a valid extension that the caller // should take ownership on success, or NULL and |error| on failure. // // NOTE: This function does file IO and should not be called on the UI thread. // NOTE: The caller takes ownership of the directory at extension->path() on the // returned object. scoped_refptr<Extension> ConvertWebAppToExtension( const WebApplicationInfo& web_app_info, const base::Time& create_time); #endif // CHROME_BROWSER_EXTENSIONS_CONVERT_WEB_APP_H_