LinkHasher jQuery Plugin

gistfile1.js

/**
 * jQuery Hashlink plugin
 * @copyright 2012 Moritz Spindelhirn
 */
;
(function($){
    
    var pluginName = 'hashlink',
        dataName = 'jq.plugin.' + pluginName,
        events = ['Load', 'BeforeLoad', 'Click'],
        defaultConf = {
            prefix : '/#!/',
            attr : 'href',
            target : '#container',
            onClick : function() {
                $(this).data(dataName).load();
            }
        };
    
    function LinkHasher(elem, conf) {
        this.host = $(elem);
        this.conf = conf;
        
        // hash link
        if($(elem).attr(conf.attr)) {
            this.hash();
        }
    }
    LinkHasher.prototype.getConf = function() {
        return this.conf;
    };
    LinkHasher.prototype.hash = function() {
        var attr = this.host.attr(this.conf.attr);
        if(!attr || !attr.length) return;
        attr = (attr.substr(0, 1) == '/') ? attr.substr(1) : attr;
        attr = (attr.indexOf(this.conf.prefix) == 0) ? attr : this.conf.prefix + attr;
        this.host.attr(this.conf.attr, attr);
    };
    LinkHasher.prototype.unhash = function() {
        var attr = this.host.attr(this.conf.attr);
        if(!attr) return;
        return (attr.indexOf(this.conf.prefix) == 0) ? attr.replace(this.conf.prefix, '') : attr;
    };
    LinkHasher.prototype.load = function() {
        var host = this.host,
            conf = this.conf;
        
         // trigger on before load
        var event = $.Event('beforeload');
        host.trigger(event);
        
        if(event.isDefaultPrevented()) {
            return;
        }
        
        $.ajax({
            url : this.unhash(),
            success : function(res) {
                var event = $.Event('load', { ajaxResult: res });
                host.trigger(event);
                
                if(event.isDefaultPrevented()) {
                    return;
                }
                
                $(conf.target).html(res);
            }
        });
    };
    
    $.fn[pluginName] = function(opts) {
        var conf = $.extend({}, defaultConf, opts) ;
        return this.each(function(){
            var $this = $(this);
            if(!$.data(this, dataName)) {
                $.data(this, dataName, new LinkHasher(this, conf));
                
                // bind events
                for(var i in events) {
                    var eventName = events[i];
                    if(conf['on' + eventName]) {
                        $this.on(eventName.toLowerCase(), conf['on' + eventName]);
                    }
                }
            }
        });
    };
})(jQuery);