initial commit from rev. 632

gulliver/js/common/tree/tree.js

@@ -0,0 +1,67 @@
+/* Manages a table of Tree type.
+ * @author David Callizaya
+ */
+function G_Tree() {
+  this.lastSelected = false;
+  this.lastSelectedClassName = 'treeNode';
+  var me = this;
+  this.changeSign = function( element, newSign ){
+    /*element must be the TR of the current node */
+    var spans = element.cells[0].childNodes;//getElementsByTagName('SPAN');
+    for(var r= 0 ; r<spans.length ; r++ ) {
+      if(spans[r].nodeName==='SPAN') {
+        if(spans[r].getAttribute('name')===newSign) {
+          spans[r].style.display='';
+        } else {
+          spans[r].style.display='none';
+        }
+      }
+    }
+  };
+  this.getRowOf=function (element) {
+    //NOTE: IF (element.offsetParent==null) there is no efect.
+    while(element.nodeName!='BODY') {
+      if (element.getAttribute('name')) {
+        if (element.getAttribute('name').substr(0,9)==='treeNode[') {
+          var regexp = /^treeNode\[[^\]]+\]\[([^\]]+)\]$/;
+          result = regexp.exec(element.getAttribute('name'));
+          if (!(result && result.length>=2)) return false;
+          //Now element is the TR of the current node.
+          return element.parentNode;
+        }
+      }
+      element = element.parentNode;
+    }
+    return false;
+  };
+  this.contract=function( element ){
+    if (!(element = this.getRowOf(element))) return;
+    var row = element.rowIndex;
+    if ( (row+1)>= element.parentNode.rows.length ) return;
+    element.parentNode.rows[row+1].style.display = 'none';
+    this.changeSign( element , 'plus' );
+  };
+
+this.expand=function( element ){
+    if (!(element = this.getRowOf(element))) return;
+    var row = element.rowIndex;
+    if ( (row+1)>= element.parentNode.rows.length ) return;
+    element.parentNode.rows[row+1].style.display = '';
+    this.changeSign( element , 'minus' );
+  };
+  this.select=function( element ){
+    if (!(element = this.getRowOf(element))) return;
+    if (me.lastSelected) {
+     if (me.lastSelected.cells[1]) me.lastSelected.cells[1].className=me.lastSelectedClassName;
+    }
+    me.lastSelected = element ;
+    //me.lastSelected.cells[1].style.filter='Light';
+    //me.lastSelected.cells[1].filters['Light'].addAmbient(155,155,155,255);
+    me.lastSelectedClassName=me.lastSelected.cells[1].className;
+    me.lastSelected.cells[1].className="treeNodeSelected";
+  };
+  this.refresh=function( div , server ) {
+    div.innerHTML = ajax_function( server ,'','' );
+  };
+};
+var tree = new G_Tree();