X-Git-Url: http://git.ithinksw.org/extjs.git/blobdiff_plain/ee06f37b0f6f6d94cd05a6ffae556660f7c4a2bc..c930e9176a5a85509c5b0230e2bff5c22a591432:/src/util/Cookies.js?ds=inline diff --git a/src/util/Cookies.js b/src/util/Cookies.js new file mode 100644 index 00000000..201f09d1 --- /dev/null +++ b/src/util/Cookies.js @@ -0,0 +1,96 @@ +/*! + * Ext JS Library 3.0.0 + * Copyright(c) 2006-2009 Ext JS, LLC + * licensing@extjs.com + * http://www.extjs.com/license + */ +/** + * @class Ext.util.Cookies + * Utility class for managing and interacting with cookies. + * @singleton + */ +Ext.util.Cookies = { + /** + * Create a cookie with the specified name and value. Additional settings + * for the cookie may be optionally specified (for example: expiration, + * access restriction, SSL). + * @param {Object} name + * @param {Object} value + * @param {Object} expires (Optional) Specify an expiration date the + * cookie is to persist until. Note that the specified Date object will + * be converted to Greenwich Mean Time (GMT). + * @param {String} path (Optional) Setting a path on the cookie restricts + * access to pages that match that path. Defaults to all pages ('/'). + * @param {String} domain (Optional) Setting a domain restricts access to + * pages on a given domain (typically used to allow cookie access across + * subdomains). For example, "extjs.com" will create a cookie that can be + * accessed from any subdomain of extjs.com, including www.extjs.com, + * support.extjs.com, etc. + * @param {Boolean} secure (Optional) Specify true to indicate that the cookie + * should only be accessible via SSL on a page using the HTTPS protocol. + * Defaults to false. Note that this will only work if the page + * calling this code uses the HTTPS protocol, otherwise the cookie will be + * created with default options. + */ + set : function(name, value){ + var argv = arguments; + var argc = arguments.length; + var expires = (argc > 2) ? argv[2] : null; + var path = (argc > 3) ? argv[3] : '/'; + var domain = (argc > 4) ? argv[4] : null; + var secure = (argc > 5) ? argv[5] : false; + document.cookie = name + "=" + escape(value) + ((expires === null) ? "" : ("; expires=" + expires.toGMTString())) + ((path === null) ? "" : ("; path=" + path)) + ((domain === null) ? "" : ("; domain=" + domain)) + ((secure === true) ? "; secure" : ""); + }, + + /** + * Retrieves cookies that are accessible by the current page. If a cookie + * does not exist, get() returns null. The following + * example retrieves the cookie called "valid" and stores the String value + * in the variable validStatus. + *

+     * var validStatus = Ext.util.Cookies.get("valid");
+     * 
+ * @param {Object} name The name of the cookie to get + * @return {Mixed} Returns the cookie value for the specified name; + * null if the cookie name does not exist. + */ + get : function(name){ + var arg = name + "="; + var alen = arg.length; + var clen = document.cookie.length; + var i = 0; + var j = 0; + while(i < clen){ + j = i + alen; + if(document.cookie.substring(i, j) == arg){ + return Ext.util.Cookies.getCookieVal(j); + } + i = document.cookie.indexOf(" ", i) + 1; + if(i === 0){ + break; + } + } + return null; + }, + + /** + * Removes a cookie with the provided name from the browser + * if found. + * @param {Object} name The name of the cookie to remove + */ + clear : function(name){ + if(Ext.util.Cookies.get(name)){ + document.cookie = name + "=" + "; expires=Thu, 01-Jan-70 00:00:01 GMT"; + } + }, + /** + * @private + */ + getCookieVal : function(offset){ + var endstr = document.cookie.indexOf(";", offset); + if(endstr == -1){ + endstr = document.cookie.length; + } + return unescape(document.cookie.substring(offset, endstr)); + } +}; \ No newline at end of file