HcksTreeview.prototype.loaded = false;
$.fn.extend({
	treeInput : function(opt) {
		this.each(function() {
			var $this = $(this);
			var treeName = this.getAttribute("id");
			if (!treeName || treeName.length == 0) {
				treeName = this.getAttribute("name");
			}
			var multipleChooser = $this.is("div");
			var tree = $this.data("tree");
			if (tree == null) {
				tree = {};
				$this.data("multipleChooser", multipleChooser);
				var treePanel = $("<div></div>");
				treePanel.addClass("x-tree-dropdown-panel");
				$("body").append(treePanel);
				
				var treePanelCover = null;
				if ($.browser.msie && $.browser.version < 7) {
					treePanelCover = $("<iframe frameborder='0'></iframe>");
					treePanelCover.addClass("x-tree-dropdown-panel").css("z-index", "1000");
					$("body").append(treePanelCover);
				}
				
				$(document).mouseup(function(evt){
					if (treePanel.is(":hidden")) return true;
					var p = evt.target;
					while(p) {
						if (p == treePanel.get(0)) {
							break;
						}
						p = p.parentNode;
					}
					if (p == null || typeof(p) == 'undefined') {
						treePanel.hide();
						if (treePanelCover) treePanelCover.hide();
					}
				});
				tree.panel = treePanel;
				tree.cover = treePanelCover;
				if (multipleChooser) {
					var btnTab = $("<table width='100%'><tr><td width=100 align=center></td><td width=1></td><td></td><td align='right'></td></tr></table>").addClass("header");
	
					var okBtn = $("<input type='button' class='button' value='确定'/>");
					var canBtn = $("<input type='button' class='button' value='取消'/>");
					if (opt.selectAll) {
						var selAllBtn = $("<input type='checkbox' />");
						$("tr td:first-child", btnTab).append(selAllBtn).append("全选/反选");
						selAllBtn.click(function() {
							if (this.checked)
								tree.tree.checkAll(true);
							else
								tree.tree.uncheckAll(true);
						});
					}
					if (opt.allowFilter) {
						var txtFilterDealer = $("<input type='text' class='text' size='8'/>");
						$("tr td:nth-child(2)", btnTab).append(txtFilterDealer);
						txtFilterDealer.keyup(function(evt){
							if (this.getAttribute('lastWord') != this.value) {
								var nodes = tree.tree.getRoot().get(0).getElementsByTagName("li");
								if (this.value.length > 0) {
									var filterText = this.value;
									for (var i = 0; i < nodes.length; i++) {
										var node = nodes[i];
										var filterResult = opt.filter.call(node, tree.tree, filterText, $this);
										if (filterResult >= 0) {
											var vis = filterResult == 1;
											if (vis) {
												if (node.style.display == 'none') node.style.display = 'block';
											} else {
												if (node.style.display != 'none') node.style.display = 'none';
											}
											if (node.getAttribute("level") == "0")
												continue;
											while (!node.nextSibling) {
												if (!vis) {
													var prevSibling = node.previousSibling;
													while(prevSibling != null) {
														if (prevSibling.style.display != 'none') {
															vis = true;
															break;
														}
														prevSibling = prevSibling.previousSibling;
													}
												}
												node = node.parentNode.parentNode;
												if (node.getAttribute("level") == null) {
													break;
												}
												node.style.display = vis ? 'block' : 'none';
											}
										}
									}
								} else {
									for (var i = 0; i < nodes.length; i++) {
										if (nodes[i].style.display == 'none')
											nodes[i].style.display = 'block';
									}
								}
							}
							this.setAttribute('lastWord', this.value);
						});
					}
					$("tr td:last-child", btnTab).append(okBtn).append("&nbsp;").append(canBtn);
					
					var mainPanel = $("<div style='padding:4px;overflow:auto'></div>")
						.css({height:treePanel.height() - 40});
					if ($.browser.msie && $.browser.version < 7.0) 
						mainPanel.css({width:'98%'});
					
					treePanel.css({"overflow":"hidden"});
					treePanel.append(btnTab);
					treePanel.append(mainPanel);
					
					canBtn.click(function(){
						tree.hide();
					});
					
					okBtn.click(function(){
						$this.contents().not("a").not($("#selView")[0]).remove();
						var nodes = tree.tree.getCheckedNodes();
						var v = $("#selView");
						v.html("");
						nodes.each(function(i){
							var hn = $this.attr("name");
							if ($.isFunction(opt.getSubmitName)) {
								hn = opt.getSubmitName.call($this, this, tree.tree);
							}
							var hd = tree.tree.getNodeAttr(this, "text");
							
							if ($.isFunction(opt.getSelectDesc)) {
								hd = opt.getSelectDesc.call($this, this, tree.tree);
							}
							var hv = tree.tree.getNodeAttr(this, "id");
							if ($(":checkbox[name='" + hn + "'][value='" + hv + "']", $this).length > 0) {
								return;
							}
							var hidValue = $("<input class='value' type='hidden'/>").val(hv);
							hidValue.attr("name", hn);
							$this.append(hidValue);
							var hidDesc = $("<input type='hidden' class='desc'/>").val(hd);
							hidDesc.attr("name", hn + "_DESC");
							$this.append(hidDesc);
							
//							//ls add
//							if(i==0){
//								v.append(hd).append(" ; ").append("&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;");
//							}else if( i== nodes.length-1){
//								if((i+1) % 3  == 0){
//									v.append(hd).append(" ; ").append("&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<br/>");
//								}else{
//									v.append(hd).append(" ; ").append("&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;");
//								}
//							}else {
//								if((i+1) % 3  == 0){
//									v.append(hd).append(" ; ").append("&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<br/>");
//								}else{
//									v.append(hd).append(" ; ").append("&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;");
//								}
//							}
								
							
							
//							if( i== nodes.length-1){
//								if(i % 3  == 0 && i !=0 ){
//									v.append(hd);
//								}else{
//									
//								}
//							}else{
//								if(i % 3  == 0 && i !=0 ){
//									v.append(hd).append("; ").append("&nbsp;<br/>");
//								}else{
//									v.append(hd).append("; ").append("&nbsp;");
//								}
//								
//							}
							
							if ($this.hasClass("checkbox")) {
								
								var cb = $("<input type='checkbox' checked='checked'/>")
									.attr("dataName", hn)
									.attr("dataValue", hidValue.val())
									.attr("title", hd);
								cb.bind("click", function(e) {
									var dataName = this.getAttribute("dataName");
									var dataValue = this.getAttribute("dataValue");
									if (this.checked) {
										$this.append($("<input class='value' type='hidden'/>").attr("name", dataName).attr("value", dataValue));
										$this.append($("<input class='desc' type='hidden'/>").attr("name", dataName + "_DESC").attr("value", this.title));
									} else {
										$this.children("input[name='" + dataName + "'][value='" + dataValue + "']").remove();
										$this.children("input[name='" + dataName + "_DESC'][value='" + this.title + "']").remove()
									}
								});
								$this.append(cb);
								$this.append(cb.attr("title"));
							}
						}); 
						if (!$this.hasClass("checkbox")) {
							$("span", $this).text(nodes.length);
						}
						if (opt && opt.onSelected) {
							opt.onSelected.call($this, true, nodes, tree.tree);
						}
						tree.hide();
					});
				} else {
					treePanel.prepend($("<IMG alt='清除' class='clear-handler'/>").attr("src", __BLANK_IMAGE).bind("click", tree, function(e) {
						$this.val("");
						if (opt && $.isFunction(opt.onClear)) {
							opt.onClear.call($this);
						}
						e.data.hide();
					}));
					treePanel.prepend($("<IMG alt='关闭' class='close-handler'/>").attr("src", __BLANK_IMAGE).bind("click", tree, function(e) {
						e.data.hide();
					}));
				}
				
				tree.selectNode = function(t) {
					if (opt && $.isFunction(opt.onSelected)) {
						opt.onSelected.call($this, false, t.getSelectedNode(), t);
						if(!multipleChooser){
							tree.hide();
						}
					}
					var selectedV = t.getNodeAttr(t.getSelectedNode(), "id");
					if ($this.attr("onselectedchange") && $this.attr("selectedValue") != selectedV) {
						var changeHandler = eval($this.attr("onselectedchange"));
						if ($.isFunction(changeHandler))
							changeHandler(selectedV, t.getNodeAttr(t.getSelectedNode(), "text"));
					}
					$this.attr("selectedValue", selectedV);
				}
				
				var treeView = new HcksTreeview(
					multipleChooser ? treePanel.get(0).lastChild : treePanel, {
					url: __CONTEXT_PATH + opt.ajaxUrl, 
					onselect:tree.selectNode, 
					oncheckchanging : function(t, n){
						if(t.getNodeAttr(n, 'init') == 'n') {
							t.asynInitChildNodes(n, null, false, false, true);	
						}
					}, 
					beforeAsyn : function(n, p) {
						if ($.isFunction(opt.extraParams)) {
							var params = opt.extraParams($this);
							for (var k in params) {
								p[k] = params[k];
							}
						}
					}
				});
				tree.tree = treeView;
				tree.show = function(x, y) {
					this.panel.css("left", x).css("top", y);
					this.panel.show();
					if (this.cover) this.cover.css("left", x).css("top", y).show();
					if (this.tree.loaded == false) {
						this.tree.asynInitChildNodes(null, null, false);
						this.tree.loaded = true;
					}
				}
				tree.tryLoad = function() {
					if (this.tree.loaded == false) {
						this.tree.asynInitChildNodes(null, null, false);
						this.tree.loaded = true;
					}
				}
				tree.hide = function() {
					this.panel.hide();
					if (this.cover) this.cover.hide();
				}
				tree.isHidden = function() {
					return this.panel.is(":hidden");
				}
				tree.refresh = function() {
					$this.flushCache();
					return this.tree.asynInitChildNodes(null, null, false);
				}
				$this.data("tree", tree);
			}
			if (!multipleChooser) {
				$this.click(function(e) {
					var pos = $this.offset();
					if (pos.left + $this.width() - e.clientX < 18) {
						if (tree.isHidden()) {
							tree.show(pos.left, pos.top + $this.height() + 5);
						} else {
							tree.hide();
						}
					}
				});
				$this.hover(
						function(){$this.addClass("chooserMouseOver")}, 
						function(){$this.removeClass("chooserMouseOver")}
				);
			} else {
				var btn = $("<a class='btn' href='javascript:void(0)'>请选择 </a>");
				var selections = $this.children(":hidden.value");
				if (!$this.hasClass("checkbox")) { 
					var linkSelected = $("<a href='javascript:void(0)'>（已选 <span style='font-weight:bold'>" + selections.length + "</span>）</a>");
					var selectedViews = $("（<div id='selView'></div>）");
					$this.prepend("&nbsp;").prepend(selectedViews).prepend("&nbsp;").prepend(linkSelected).prepend("&nbsp;").prepend(btn);
					
					linkSelected.click(function() {
						var pan = $("#__treeChooserSelection");
						if (pan.length == 0) {
							pan = $("<div id='__treeChooserSelection' class='x-dropdowntree-selections'><div class='title'>已选择列表</div><div class='list'><table width='100%' cellpadding=0 cellspacing=0></table></div></div>")
							var chooserSelectionCover = null;
							if ($.browser.msie && $.browser.version < 7) {
								chooserSelectionCover = $("<iframe frameborder='0'></iframe>");
								chooserSelectionCover.addClass("x-dropdowntree-selections").css("z-index", "1000");
								$("body").append(chooserSelectionCover);
							}
							pan.dblclick(function(){
								$(this).hide()
								if (chooserSelectionCover) chooserSelectionCover.hide();
							});
							pan.children("div.title").prepend($("<IMG alt='关闭' class='close-handler'/>").attr("src", __BLANK_IMAGE).bind("click", function(e) {
								pan.hide();
								if (chooserSelectionCover) chooserSelectionCover.hide();
							}));
							$(document.body).append(pan);
						}
						var tab = $("table:first", pan);
						tab.empty();
						selections = $this.children(":hidden.value");
						var selectionTitles = $this.children(":hidden.desc");
						for (var i = 0; i < selections.length; i ++) {
							if ($(":checkbox[name='" + selections.get(i).name + "'][value='" + selections.get(i).value + "']", $this).length > 0) {
								continue;
							}
							var sr = $("<tr><td width='1'></td><td align='left'></td></tr>")
								.css("background-color", i % 2 == 0 ? "#fff":"#eee");
							var title = "";
							if (selectionTitles.length == selections.length) {
								title = selectionTitles.get(i).value;
							} else {
								var tn = document.getElementById(selections.get(i).value);
								if (typeof(tn) != 'undefined' && tn.level) {
									title = tree.tree.getNodeAttr(tn, "text");
								}
							}
							var cb = $("<input type='checkbox' checked='checked'/>")
								.attr("dataName", selections.get(i).name)
								.attr("dataValue", selections.get(i).value)
								.attr("title", title);
							var counter = selections.length;
							cb.bind("click", function(e) {
								var dataName = this.getAttribute("dataName");
								var dataValue = this.getAttribute("dataValue");
								if (this.checked) {
									$this.append($("<input class='value' type='hidden'/>").attr("name", dataName).attr("value", dataValue));
									$this.append($("<input class='desc' type='hidden'/>").attr("name", dataName + "_DESC").attr("value", this.title));
									counter ++;
								} else {
									$this.children("input[name='" + dataName + "'][value='" + dataValue + "']").remove();
									$this.children("input[name='" + dataName + "_DESC'][value='" + this.title + "']").remove()
									counter--;
								}
								$("span", $this).text(counter.toString());
							});
							sr.children(":first-child").append(cb);
							sr.children(":last-child").html(cb.attr("title"));
							tab.append(sr);
						}
						var spos = $(this).offset();
						pan.css({"left":spos.left, "top":spos.top}).show();
						if (chooserSelectionCover) chooserSelectionCover.css({"left":spos.left, "top":spos.top}).show();
					});
				} else {
					$this.prepend(btn);
					var selections = $this.children(":hidden.value");
					var selectionTitles = $this.children(":hidden.desc");
					for (var i = 0; i < selections.length; i++) {
						var f = ":checkbox[name='" + selections.get(i).name + "'][value='" + selections.get(i).value + "']";
						if ($(f).length > 0) {
							continue;
						}
						var title = "";
						if (selectionTitles.length == selections.length) {
							title = selectionTitles.get(i).value;
						} else {
							var tn = document.getElementById(selections.get(i).value);
							if (typeof(tn) != 'undefined' && tn.level) {
								title = tree.tree.getNodeAttr(tn, "text");
							}
						}
						var cb = $("<input type='checkbox' checked='checked'/>")
							.attr("dataName", selections.get(i).name)
							.attr("dataValue", selections.get(i).value)
							.attr("title", title);
						cb.bind("click", function(e) {
							var dataName = this.getAttribute("dataName");
							var dataValue = this.getAttribute("dataValue");
							if (this.checked) {
								$this.append($("<input class='value' type='hidden'/>").attr("name", dataName).attr("value", dataValue));
								$this.append($("<input class='desc' type='hidden'/>").attr("name", dataName + "_DESC").attr("value", this.title));
							} else {
								$this.children("input[name='" + dataName + "'][value='" + dataValue + "']").remove();
								$this.children("input[name='" + dataName + "_DESC'][value='" + this.title + "']").remove()
							}
						});
						$this.append(cb);
						$this.append(cb.attr("title"));
					}
				}
				btn.click (function() {
					if (tree.isHidden()) {
						var pos = $(this).offset();
						tree.show(pos.left, pos.top);
					} else {
						tree.hide();
					}
				});
			}
		});
	}
});