Open-ILS/web/js/dojo/openils/widget/FilteringTreeSelect.js

   1 /* EXAMPLES:
   2
   3 <input jsId='ftree' dojoType="openils.widget.FilteringTreeSelect" searchAttr='shortname' labelAttr='shortname' tree='myTree'/>
   4
   5 --- OR --
   6
   7 var tree = new openils.widget.FilteringTreeSelect(null, parentDiv);
   8 tree.searchAttr = 'shortname';
   9 tree.labelAttr = 'shortname';
  10 tree.parentField = 'parent_ou';
  11 tree1.tree = fieldmapper.aou.globalOrgTree;
  12 tree1.startup();
  13
  14 */
  15
  16 if(!dojo._hasResource["openils.widget.FilteringTreeSelect"]){
  17     dojo.provide("openils.widget.FilteringTreeSelect");
  18     dojo.require("dijit.form.FilteringSelect");
  19
  20     dojo.declare(
  21         "openils.widget.FilteringTreeSelect", [dijit.form.FilteringSelect], {
  22
  23             defaultPad : 10,
  24             parentField : 'parent',
  25             labelAttr : 'name',
  26             childField : 'children',
  27             disableQuery : null,
  28             tree : null,
  29
  30             startup : function() {
  31                 this.tree = (typeof this.tree == 'string') ?
  32                         dojox.jsonPath.query(window, '$.' + this.tree, {evalType:"RESULT"}) : this.tree;
  33                 if(!this.tree) {
  34                     console.log("openils.widget.FilteringTreeSelect: Tree needed!");
  35                     return;
  36                 }
  37                 if(!dojo.isArray(this.tree)) this.tree = [this.tree];
  38                 this.className = this.tree[0].classname;
  39                 this.dataList = [];
  40                 var self = this;
  41                 dojo.forEach(this.tree, function(node) { self._makeNodeList(node); });
  42                 if(this.dataList.length > 0) {
  43                     var storeData = fieldmapper[this.className].initStoreData();
  44                     storeData.items = this.dataList;
  45                     this.store = new dojo.data.ItemFileReadStore({data:storeData});
  46                 }
  47                 this.inherited(arguments);
  48
  49                 if(this.dataList.length > 0 && this.disableQuery)
  50                     this._setDisabled();
  51             },
  52
  53             _setDisabled : function() {
  54
  55                 // tag disabled items
  56                 this.store.fetch({
  57                     query : this.disableQuery,
  58                     onItem : function(item) { item._disabled = 'true'; }
  59                 });
  60
  61                 // disallow selecting of disabled items
  62                 var self = this;
  63                 dojo.connect(this, 'onChange',
  64                     function(ident) {
  65                         if(!ident) return;
  66                         self.store.fetchItemByIdentity({
  67                             identity : ident,
  68                             onItem : function(item) {
  69                                 if(item._disabled == 'true')
  70                                     self.attr('value', '');
  71                             }
  72                         });
  73                     }
  74                 );
  75             },
  76
  77             // Compile the tree down to a depth-first list of dojo data items
  78             _makeNodeList : function(node, depth) {
  79                 if(!depth) depth = 0;
  80                 var storeItem = node.toStoreItem();
  81                 storeItem._depth = depth++;
  82                 this.dataList.push(storeItem);
  83
  84                 for(var i in node[this.childField]())
  85                     this._makeNodeList(node[this.childField]()[i], depth);
  86             },
  87
  88             // For each item, find the depth at display time by searching up the tree.
  89             _getMenuLabelFromItem : function(item) {
  90
  91                 var style = 'padding-left:'+ (item._depth * this.defaultPad) +'px;';
  92
  93                 if(item._disabled == 'true') // TODO: external CSS
  94                     style += 'background-color:#CCC;cursor:wait';
  95
  96                 return {
  97                     html: true,
  98                     label: '<div style="'+style+'">' + this.store.getValue(item, this.labelAttr) + '</div>'
  99                 }
 100             },
 101         }
 102     );
 103 }