server/org.argeo.slc.ria/src/argeo-ria-lib/jcr/class/org/argeo/jcr/ria/model/DataModel.js

   1 qx.Class.define("org.argeo.jcr.ria.model.DataModel", {
   2         extend : qx.core.Object,
   3
   4         events : {
   5                 "changeContextNode" : "qx.event.type.Data"
   6         },
   7
   8         properties : {
   9                 rootNode : {
  10                         check : "org.argeo.jcr.ria.model.Node",
  11                         event : "changeRootNode"
  12                 },
  13                 contextNode : {
  14                         check : "org.argeo.jcr.ria.model.Node"
  15                 },
  16                 selection : {
  17                         check : "Array",
  18                         event : "changeSelection",
  19                         init : []
  20                 },
  21                 selectionSource : {
  22                         check : "Object",
  23                         init : null,
  24                         nullable : true
  25                 }
  26         },
  27
  28         construct : function(rootNode){
  29                 this.base(arguments);
  30                 this.setRootNode(rootNode);
  31         },
  32
  33         members : {
  34                 requireContextChange : function(path){
  35                         var targetNode;
  36                         var rootNode = this.getRootNode();
  37                         this.setSelection([]);
  38                         if(!path){
  39                                 targetNode = rootNode;
  40                         }else{
  41                                 // Create a fake node
  42                                 if(path[path.length-1] == '/'){
  43                                         path = path.substring(0, path.length-1);
  44                                 }
  45                                 var base = path.substring(path.lastIndexOf("/")+1);
  46                                 targetNode = new org.argeo.jcr.ria.model.Node(base, rootNode.getNodeProvider());
  47                                 rootNode.addChild(targetNode);
  48                                 targetNode.setPath(path);
  49                         }
  50                         var observer = function(event){
  51                                 var state = event.getData();
  52                                 if(state == "loading"){
  53                                         targetNode.loadingNode = new org.argeo.jcr.ria.model.Node("loading");
  54                                         targetNode.addChild(targetNode.loadingNode);
  55                                 }else if(state == "loaded"){
  56                                         if(targetNode.loadingNode) {
  57                                                 targetNode.loadingNode.remove();
  58                                                 targetNode.loadingNode = null;
  59                                         }
  60                                         targetNode.removeListener("changeLoadState", observer, this);
  61                                 }
  62                                 this.setContextNode(targetNode);
  63                                 this.fireDataEvent("changeContextNode", targetNode);
  64                         };
  65                         targetNode.addListener("changeLoadState", observer, this);
  66                         targetNode.load(1);
  67                 },
  68                 setSelectionWithSource : function(selection, source){
  69                         this.setSelectionSource(source);
  70                         this.setSelection(selection);
  71                 }
  72         }
  73
  74 });