1 define(["dojo/_base/declare"], function(declare){  2     var mapEvent = null;  3     return declare(null,{  4         "id": ‘‘,  5         "layer": null,  6         "treeList": [],  7         "map":null,  8         constructor: function(id,layer,map){  9             this.id = id || this.id; 10             this.layer = layer || this.layer; 11             this.map = map || this.map;              12         }, 13         getLayerList: function(){ 14             //获取图层信息 15             var visibleLayer = []; 16             var node = {}; 17             var layerinfos = this.layer.layerInfos; 18             var parentnodes = []; //保存所有父节点 19             var root = { 20                 "id": "root", 21                 "text": "所有图层", 22                 "children": [] 23             };//根节点             24  25             if(layerinfos != null && layerinfos.length > 0){ 26                 var len = layerinfos.length; 27                 for(var i=0; i<len; i++){ 28                     //debugger; 29                     var info = layerinfos[i]; 30                     if(info.defaultVisibility){ //获取未隐藏图层的ID 31                         visibleLayer.push(info.id); 32                     } 33                     node = { 34                         "id": info.id, 35                         "text": info.name, 36                         "pid": info.parentLayerId, 37                         "checked": info.defaultVisibility ? true:false, 38                         "children":[]  39                     }; 40                     if(info.parentLayerId == -1){                                                 41                         root.children.push(node); 42                         parentnodes.push(node);  43                     }else{                          44                         getChildrenNodes(parentnodes, node);  45                         parentnodes.push(node);                        46                     }                     47                 } 48             } 49             //console.log(parentnodes) 50             this.treeList.push(root); 51             this.layer.setVisibleLayers(visibleLayer);//初始化显示图层 52         }, 53         setLayerVisibility: function(){ 54             //设置图层可见性 55             var _this = this; 56             $("#"+_this.id).tree({ 57                 data: _this.treeList, 58                 checkbox: true, 59                 onCheck: function(node, checked){//更新显示选择的图层 60                     var checkedNodes = $("#"+_this.id).tree("getChecked");//获取所有被选中的节点 61                     var visible = []; 62                     $.each(checkedNodes, function(i, cn){ 63                         visible.push(cn.id); 64                     }) 65                     if(visible.length === 0){ 66                         visible.push(-1); 67                     } 68                     //console.log($("#"+_this.id).tree("getSelected")); 69                     _this.layer.setVisibleLayers(visible);                     70                 } 71             }); 72             if(mapEvent){ 73                 mapEvent.remove(); 74             } 75             var lastNode = null; 76             mapEvent = _this.map.on(‘update-end‘, function(){ 77                 var level = _this.map.getLevel(); 78                 var nodeId = 80; 79                 switch(level){ 80                     case 14: nodeId = 80; break; 81                     case 15: nodeId = 72; break; 82                     case 16: nodeId = 59; break; 83                     case 17: nodeId = 42; break; 84                     case 18: nodeId = 21; break; 85                     case 19: nodeId = 0; break; 86                     default: nodeId = 80; break; 87                 } 88                 try{ 89                     if(lastNode){ 90                         $("#"+_this.id).tree("collapse",lastNode.target); 91                     } 92                     var node1 = $("#"+_this.id).tree(‘find‘, nodeId);                     93                     $("#"+_this.id).tree(‘select‘, node1.target); 94                     $("#"+_this.id).tree("expand",node1.target); 95                     lastNode = node1; 96                 }catch(e){ 97  98                 }                 99             });  100         },      101         removeCls: function(){102             $("#"+this.id+" span").removeClass(‘tree-folder tree-file‘);            103         }104     });105     function getChildrenNodes(pnodes, node){106         107         for(var i=pnodes.length-1; i>=0; i--){108             var pnode = pnodes[i];109             //如果是父子关系，为父节点增加子节点，退出for循环110             if(pnode.id == node.pid){111                 pnode.state = "closed"; //关闭二级树112                 pnode.children.push(node);113                 return;114             }else{115                 //如果不是父子关系，删除父节点栈里的当前节点116                 pnodes.pop();117             }118         }119     }120 })