/* jQuery autocomplete Copyright Dylan Verheul 
 * Licensed like jQuery, see http://docs.jquery.com/License
 */

$.autocomplete = function(input, options) {
	// Create a link to self
	var me = this;

	// Create jQuery object for input element
	var $input = $(input).attr("autocomplete", "off");;

	// Apply inputClass if necessary
	if (options.inputClass) $input.addClass(options.inputClass);

	// Create results
	var results = document.createElement("div");
	// Create jQuery object for results
	var $results = $(results);
	// Set default values for results
	var pos = findPos(input);
	$results.hide().addClass(options.resultsClass).css({
		position: "absolute",
		top: (pos.y + input.offsetHeight) + "px",
		left: pos.x + "px"
	});
	// Add to body element
	$("body").append(results);

	input.autocompleter = me;
	input.lastSelected = $input.val();

	var timeout = null;
	var prev = "";
	var active = -1;
	var cache = {};
	var keyb = false;

	$input
	.keydown(function(e) {
		switch(e.keyCode) {
			case 38: // up
				e.preventDefault();
        e.stopPropagation();
				moveSelect(-1);
				break;
			case 40: // down
				e.preventDefault();
        e.stopPropagation();
				moveSelect(1);
				break;
			case 9:  // tab
			case 13: // return
				if (selectCurrent()) {
					e.preventDefault();
          e.stopPropagation();

          $(".highlighted").removeClass("not_selected")
          elem = getSelectedElement().zparent
          elem.zoomHere();

          endSearch();
				}
				break;
			default:
				active = -1;
				if (timeout) clearTimeout(timeout);
				timeout = setTimeout(onChange, options.delay);
				break;
		}
	})
	.blur(function() {
		hideResults();
	});

	hideResultsNow();

	function onChange() {
		var v = $input.val();
		if (v == prev) return;
		prev = v;
		if (v.length >= options.minChars) {
			$input.addClass(options.loadingClass);
			requestData(v);
		} else {
			$input.removeClass(options.loadingClass);
			$results.hide();
		}
	};

  function getSelectedElement(){
      return $("#"+savedData[active].split("|")[1])[0]
  }

 	function moveSelect(step) {

		var lis = $("li", results);
		if (!lis) return;

		active += step;

		if (active < 0) {
			active = 0;
		} else if (active >= lis.size()) {
			active = lis.size() - 1;
		}

		lis.removeClass("over");
		$(lis[active]).addClass("over");

    found = $(".highlighted")
    found.addClass("not_selected")
    $(getSelectedElement()).removeClass("not_selected")
	};

	function selectCurrent() {
		var li = $("li.over", results)[0];
		if (!li) {
			var $li = $("li", results);
			if (options.selectOnly) {
				if ($li.length == 1) li = $li[0];
			} else if (options.selectFirst) {
				li = $li[0];
			}
		}
		if (li) {
			selectItem(li);
			return true;
		} else {
			return false;
		}
	};

	function selectItem(li) {
		if (!li) {
			li = document.createElement("li");
			li.extra = [];
			li.selectValue = "";
		}
		var v = $.trim(li.selectValue ? li.selectValue : li.innerHTML);
		input.lastSelected = v;
		prev = v;
		$results.html("");
		$input.val(v);
		hideResultsNow();
		if (options.onItemSelect) setTimeout(function() { options.onItemSelect(li) }, 1);
	};

	function hideResults() {
		if (timeout) clearTimeout(timeout);
		timeout = setTimeout(hideResultsNow, 200);
	};

	function hideResultsNow() {
		if (timeout) clearTimeout(timeout);
		$input.removeClass(options.loadingClass);
		if ($results.is(":visible")) {
			$results.hide();
		}
		if (options.mustMatch) {
			var v = $input.val();
			if (v != input.lastSelected) {
				selectItem(null);
			}
		}
	};

	function receiveData(q, data) {
		if (data) {
			$input.removeClass(options.loadingClass);
			results.innerHTML = "";
			if ($.browser.msie) {
				// we put a styled iframe behind the calendar so HTML SELECT elements don't show through
				$results.append(document.createElement('iframe'));
			}
			results.appendChild(dataToDom(data));
			$results.show();
		} else {
			hideResultsNow();
		}
	};

	function parseData(data) {
		if (!data) return null;
		var parsed = [];
		var rows = data.split(options.lineSeparator);
		for (var i=0; i < rows.length; i++) {
			var row = $.trim(rows[i]);
			if (row) {
				parsed[parsed.length] = row.split(options.cellSeparator);
			}
		}
		return parsed;
	};

	function dataToDom(data) {
		var ul = document.createElement("ul");
		var num = data.length;
		for (var i=0; i < num; i++) {
			var row = data[i];
			if (!row) continue;
			var li = document.createElement("li");
			if (options.formatItem) {
				li.innerHTML = options.formatItem(row, i, num);
				li.selectValue = row[0];
			} else {
				li.innerHTML = row[0];
			}
			var extra = null;
			if (row.length > 1) {
				extra = [];
				for (var j=1; j < row.length; j++) {
					extra[extra.length] = row[j];
				}
			}
			li.extra = extra;
			ul.appendChild(li);
			$(li).hover(
				function() { $("li", ul).removeClass("over"); $(this).addClass("over"); },
				function() { $(this).removeClass("over"); }
			).click(function(e) { e.preventDefault(); e.stopPropagation(); selectItem(this) });
		}
		return ul;
	};

	function requestData(q) {
		if (!options.matchCase) q = q.toLowerCase();
  
    data = "";
    found = $(".highlighted")
    for( var i=0; i < found.length; i++ ){
      if( found[i].zparent.type == "Window" ){
        parent = found[i].zparent.parentFrame() 
        if( parent ){ data += "1<small>" + parent.getTitle() + "</small>"; }
        else{ data += "2<small>Orphaned</small>"; }
      }
      else data += "0";

      data += found[i].zparent.getTitle();
      data += "|" + found[i].zparent.getId() + "\n";
    }

    var lastWorkspace = "";
    data = data.split("\n").sort();

    for( var i=0; i < data.length; i++ ){
      data[i] = data[i].substr(1);
      if( data[i].substr("</small>") != -1 ){
        workspace = data[i].split("</small>")[0].split("<small>")[1]
        if( workspace == lastWorkspace ) data[i] = data[i].split("</small>")[1];
        lastWorkspace = workspace;
      }
    }

    if( data[0] == "" ){ data = data.slice(1) }

    this.savedData = data;
    data = data.join("\n");
    
    data = parseData( data );
    receiveData(q, data );
	};

	function makeUrl(q) {
		var url = options.url + "?q=" + q;
		for (var i in options.extraParams) {
			url += "&" + i + "=" + options.extraParams[i];
		}
		return url;
	};

	function loadFromCache(q) {
		if (!q) return null;
		if (cache[q]) return cache[q];
		if (options.matchSubset) {
			for (var i = q.length - 1; i >= options.minChars; i--) {
				var qs = q.substr(0, i);
				var c = cache[qs];
				if (c) {
					var csub = [];
					for (var j = 0; j < c.length; j++) {
						var x = c[j];
						var x0 = x[0];
						if (matchSubset(x0, q)) {
							csub[csub.length] = x;
						}
					}
					return csub;
				}
			}
		}
		return null;
	};

	function matchSubset(s, sub) {
		if (!options.matchCase) s = s.toLowerCase();
		var i = s.indexOf(sub);
		if (i == -1) return false;
		return i == 0 || options.matchContains;
	};

	this.flushCache = function() {
		cache = {};
	};

	this.setExtraParams = function(p) {
		options.extraParams = p;
	};

	function addToCache(q, data) {
		if (!data || !q || !options.cacheLength) return;
		if (!cache.length || cache.length > options.cacheLength) {
			cache = {};
			cache.length = 1; // we know we're adding something
		} else if (!cache[q]) {
			cache.length++;
		}
		cache[q] = data;
	};

	function findPos(obj) {
		var curleft = obj.offsetLeft || 0;
		var curtop = obj.offsetTop || 0;
		while (obj = obj.offsetParent) {
			curleft += obj.offsetLeft
			curtop += obj.offsetTop
		}
		return {x:curleft,y:curtop};
	}
}

$.fn.autocomplete = function(options) {
	// Make sure options exists
	options = options || {};
	// Set url as option
	//options.url = url;
	// Set default values for required options
	options.inputClass = options.inputClass || "ac_input";
	options.resultsClass = options.resultsClass || "ac_results";
	options.lineSeparator = options.lineSeparator || "\n";
	options.cellSeparator = options.cellSeparator || "|";
	options.minChars = options.minChars || 2;
	options.delay = options.delay || 250;
	options.matchCase = options.matchCase || 0;
	options.matchSubset = options.matchSubset || 1;
	options.matchContains = options.matchContains || 0;
	options.cacheLength = options.cacheLength || 1;
	options.mustMatch = options.mustMatch || 0;
	options.extraParams = options.extraParams || {};
	options.loadingClass = options.loadingClass || "ac_loading";
	options.selectFirst = options.selectFirst || false;
	options.selectOnly = options.selectOnly || false;

	this.each(function() {
		var input = this;
		new $.autocomplete(input, options);
	});

	// Don't break the chain
	return this;
}