/*!
 * Copyright (c) 2010 Andrew Watts
 *
 * Dual licensed under the MIT (MIT_LICENSE.txt)
 * and GPL (GPL_LICENSE.txt) licenses
 * 
 * http://github.com/andrewwatts/ui.tabs.closable
 */
(function() {
    
    var ui_tabs_tabify = $.ui.tabs.prototype._tabify;

    $.extend($.ui.tabs.prototype, {

	_tabify: function() {
	    var self = this;

	    ui_tabs_tabify.apply(this, arguments);

	    // if closable tabs are enable, add a close button
	    if (self.options.closable === true) {

		var unclosable_lis = this.lis.filter(function() {
		    // return the lis that do not have a close button
		    return $('span.ui-icon-circle-close', this).length === 0;
		});

		// append the close button and associated events
		unclosable_lis.each(function() {
		    if($(this).hasClass('no-close') == false){
			$(this)
			.append('<a href="javscript:void(0)"><span class="ui-icon ui-icon-circle-close"></span></a>')
			.find('a:last')
			.hover(
			    function() {
				$(this).css('cursor', 'pointer');
			    },
			    function() {
				$(this).css('cursor', 'default');
			    }
			    )
			.click(function() {
			    var index = self.lis.index($(this).parent());
			    if (index > -1) {
				// call _trigger to see if remove is allowed
				if (false === self._trigger("closableClick", null, self._ui( $(self.lis[index]).find( "a" )[ 0 ], self.panels[index] ))) return;

				// remove this tab
				self.remove(index)
			    }

			    // don't follow the link
			    return false;
			})
			.end();
		    }
		    else
			{
			$(this)
			.append('<a href="javscript:void(0)"><span class="ui-icon ui-icon-transfer-e-w"></span></a>')
			.end();			    
			}
		})
	    }
	}
    });
    
})(jQuery);