talho/openphin

/*
 * jQuery delegate plug-in v1.0
 *
 * Copyright (c) 2007 Jörn Zaefferer
 *
 * $Id: jquery.delegate.js 4786 2008-02-19 20:02:34Z joern.zaefferer $
 *
 * Dual licensed under the MIT and GPL licenses:
 *   http://www.opensource.org/licenses/mit-license.php
 *   http://www.gnu.org/licenses/gpl.html
 */

// provides cross-browser focusin and focusout events
// IE has native support, in other browsers, use event caputuring (neither bubbles)

// provides delegate(type: String, delegate: Selector, handler: Callback) plugin for easier event delegation
// handler is only called when $(event.target).is(delegate), in the scope of the jQuery-object for event.target 

// provides triggerEvent(type: String, target: Element) to trigger delegated events
;(function($) {
    $.each({
        focus: 'focusin',
        blur: 'focusout'    
    }, function( original, fix ){
        $.event.special[fix] = {
            setup:function() {
                if ( $.browser.msie ) return false;
                this.addEventListener( original, $.event.special[fix].handler, true );
            },
            teardown:function() {
                if ( $.browser.msie ) return false;
                this.removeEventListener( original,
                $.event.special[fix].handler, true );
            },
            handler: function(e) {
                arguments[0] = $.event.fix(e);
                arguments[0].type = fix;
                return $.event.handle.apply(this, arguments);
            }
        };
    });

    $.extend($.fn, {
        delegate: function(type, delegate, handler) {
            return this.bind(type, function(event) {
                var target = $(event.target);
                if (target.is(delegate)) {
                    return handler.apply(target, arguments);
                }
            });
        },
        triggerEvent: function(type, target) {
            return this.triggerHandler(type, [jQuery.event.fix({ type: type, target: target })]);
        }
    })
})(jQuery);