/**
* Contains a singleton (ClassNameManager) that enables easy creation and caching of
* prefixed class names.
* @module classnamemanager
*/
/**
* A singleton class providing:
*
* <ul>
* <li>Easy creation of prefixed class names</li>
* <li>Caching of previously created class names for improved performance.</li>
* </ul>
*
* @class ClassNameManager
* @static
*/
// String constants
var CLASS_NAME_PREFIX = 'classNamePrefix',
CLASS_NAME_DELIMITER = 'classNameDelimiter';
// Global config
/**
* Configuration property indicating the prefix for all CSS class names in this YUI instance.
*
* @property Y.config.classNamePrefix
* @type {String}
* @default "yui"
* @static
*/
Y.config[CLASS_NAME_PREFIX] = Y.config[CLASS_NAME_PREFIX] || 'yui';
/**
* Configuration property indicating the delimiter used to compose all CSS class names in
* this YUI instance.
*
* @property Y.config.classNameDelimiter
* @type {String}
* @default "-"
* @static
*/
Y.config[CLASS_NAME_DELIMITER] = Y.config[CLASS_NAME_DELIMITER] || '-';
Y.ClassNameManager = function () {
var sPrefix = Y.config[CLASS_NAME_PREFIX],
sDelimiter = Y.config[CLASS_NAME_DELIMITER],
classNames = {};
return {
/**
* Returns a class name prefixed with the the value of the
* <code>Y.config.classNamePrefix</code> attribute + the provided strings.
* Uses the <code>Y.config.classNameDelimiter</code> attribute to delimit the
* provided strings. E.g. Y.ClassNameManager.getClassName('foo','bar'); // yui-foo-bar
*
*
* @method getClassName
* @param {String}+ one or more classname bits to be joined and prefixed
*/
getClassName: function (c,x) {
// Test for multiple classname bits
if (x) {
c = Y.Array(arguments,0,true).join(sDelimiter);
}
// memoize in classNames map
return classNames[c] || (classNames[c] = sPrefix + sDelimiter + c);
}
};
}();