/*jquery.cascade.js */
/*
 * jQuery UI cascade
 * version: 1.1.1 (6/16/2008)
 * @requires: jQuery v1.2 or later
 * adapted from Yehuda Katz, Rein Henrichs autocomplete plugin
 * Dual licensed under the MIT and GPL licenses:
 *   http://www.opensource.org/licenses/mit-license.php
 *   http://www.gnu.org/licenses/gpl.html
 *
 * Copyright 2008 Mike Nichols

 */

;(function($) {

  $.ui = $.ui || {}; $.ui.cascade = $.ui.cascade || {};

  $.fn.cascade = function(parent,opt) {
	if( opt.event ){
		//namespace our event
		opt.event = opt.event.replace('.cascade','') + '.cascade';
	}

    opt = $.extend({}, {
		list: [], //static list to use as datasource
		timeout: 10,//delay before firing getList operation
		getList: function(select) { $(this).trigger("updateList", [opt.list]); }, //function to fetch datasource
		template: function(str) { return "<option value='" + str + "'>" + str + "</option>"; },//applied to each item in datasource
		match: function(selectedValue) { return true;}, //'this' is the js object, or the current list item from 'getList',
		event: "change.cascade",	//event to listen on parent which fires the cascade
		getParentValue: function(parent) { return $(parent).val(); } //delegate for retrieving the parent element's value
    }, opt);

    if($.ui.cascade.ext) {
		for(var ext in $.ui.cascade.ext) {
	        if(opt[ext]) {
	          opt = $.extend(opt, $.ui.cascade.ext[ext](opt));
	          delete opt[ext];
	        }
		}
	}

    return this.each(function() {
		var source = $(parent);
		var self = $(this);

		//bind any events in extensions to each instance
		if($.ui.cascade.event) {
			for(var e in $.ui.cascade.event) {
				self.bind(e + ".cascade",[source],$.ui.cascade.event[e]);
			}
		}

		$(source).bind(opt.event,function() {
			self.trigger("loading.cascade",[source[0]]);

			var selectTimeout = $.data(self, "selectTimeout");
			if(selectTimeout) { window.clearInterval(selectTimeout); }
			$.data(self, "selectTimeout", window.setTimeout(function() {
					self.trigger("cascade");
			}, opt.timeout));

		});

        self.bind("cascade", function() {
          self.one("updateList", function(e, list) {
            list = $(list)
              .filter(function() { return opt.match.call(this, opt.getParentValue(parent)); })
              .map(function() {
                var node = $(opt.template(this))[0];
                return node;
              });

			self.empty();//clear the source/select

            if(list.length){
				self.html(list);
			}

			self.trigger("loaded.cascade",[source[0]]);//be sure to fire even if there is no data

			if( self.is(":input") ) {
				self.trigger("change.cascade");
			}
          });

          opt.getList.call(self[0],source);	//call with child element as this

        });
    });
  };

})(jQuery);


/*jquery.cascade.ui.ext.js */
/*
 * jQuery UI cascade
 * version: 1.1 (5/20/2008)
 * @requires: jQuery v1.2 or later
 * adapted from Yehuda Katz, Rein Henrichs autocomplete plugin
 * Dual licensed under the MIT and GPL licenses:
 *   http://www.opensource.org/licenses/mit-license.php
 *   http://www.gnu.org/licenses/gpl.html
 *  depends on templating  plugin if using with templateText
 * Copyright 2008 Mike Nichols
 */

;(function($) {
	$.ui = $.ui || {};
	$.ui.cascade = $.ui.cascade || {};
	$.ui.cascade.ext = $.ui.cascade.ext || {};
	$.ui.cascade.event = $.ui.cascade.event || {};

	$.ui.cascade.ext.ajax = function(opt) {
		var ajax = opt.ajax;//ajax options hash...not just the url
		return { getList: function(parent) {
			var _ajax = {};
			var $this = $(this);//child element
			var defaultAjaxOptions = {
				type: "GET",
				dataType: "json",
				success: function(json) { $this.trigger("updateList", [json]); },
				data: $.extend(_ajax.data,ajax.data,{ val: opt.getParentValue(parent) })
			};
			//overwrite opt.ajax with required props (json,successcallback,data)
			//this lets us still pass in handling the other ajax callbacks and options
			$.extend(_ajax,ajax,defaultAjaxOptions);

			$.ajax(_ajax);
		} };
	};


	$.ui.cascade.ext.templateText = function(opt) {
	var template = $.makeTemplate(opt.templateText, "<%", "%>");
	return { template: function(obj) { return template(obj); } };
	};

	/*these events are bound on every instance...so the indicator appears  on each target */
	/*
	*	CSS: .cascade-loading: { background: transparent url("${staticDir}/Content/images/indicator.gif") no-repeat center; }
	*/
	$.ui.cascade.event.loading = function(e,source) {
		$(this).empty();
		var position = {
			'z-index':'6000',
			'position':'absolute',
			'width':'16px'
		};
		$.extend(position,$(this).offset());
		position.top = position.top + 3;
		position.left = position.left + 3;
		$("<div class='cascade-loading'>&nbsp;</div>").appendTo("body").css(position);
		$(this)[0].disabled = true;
	};
	$.ui.cascade.event.loaded = function(e,source) {
		$(this)[0].disabled = false;
		$(".cascade-loading").remove();
	};

})(jQuery);


/**
 * Copyright Yehuda Katz
 * with assistance by Jay Freeman
 *
 * You may distribute this code under the same license as jQuery (BSD or GPL
 **/
(function ($) {
  $.makeTemplate = function (template, begin, end) {
    var rebegin = begin.replace(/([\]{}[\\])/g, '\\$1');
    var reend = end.replace(/([\]{}[\\])/g, '\\$1');

    var code = "try { with (_context) {" +
      "var _result = '';" +
        template
          .replace(/[\t\r\n]/g, ' ')
          .replace(/^(.*)$/, end + '$1' + begin)
          .replace(new RegExp(reend + "(.*?)" + rebegin, "g"), function (text) {
            return text
              .replace(new RegExp("^" + reend + "(.*)" + rebegin + "$"), "$1")
              .replace(/\\/g, "\\\\")
              .replace(/'/g, "\\'")
              .replace(/^(.*)$/, end + "_result += '$1';" + begin);
          })
          .replace(new RegExp(rebegin + "=(.*?)" + reend, "g"), "_result += ($1);")
          .replace(new RegExp(rebegin + "(.*?)" + reend, "g"), ' $1 ')
          .replace(new RegExp("^" + reend + "(.*)" + rebegin + "$"), '$1') +
      "return _result;" +
    "} } catch(e) { return '' } ";

    return new Function("_context", code);
  };
})(jQuery);