lib/dijit/_Contained.js.uncompressed.js

   1 define("dijit/_Contained", [
   2         "dojo/_base/declare", // declare
   3         "./registry"    // registry.getEnclosingWidget(), registry.byNode()
   4 ], function(declare, registry){
   5
   6         // module:
   7         //              dijit/_Contained
   8
   9         return declare("dijit._Contained", null, {
  10                 // summary:
  11                 //              Mixin for widgets that are children of a container widget
  12                 //
  13                 // example:
  14                 //      |       // make a basic custom widget that knows about it's parents
  15                 //      |       declare("my.customClass",[dijit._Widget,dijit._Contained],{});
  16
  17                 _getSibling: function(/*String*/ which){
  18                         // summary:
  19                         //              Returns next or previous sibling
  20                         // which:
  21                         //              Either "next" or "previous"
  22                         // tags:
  23                         //              private
  24                         var node = this.domNode;
  25                         do{
  26                                 node = node[which+"Sibling"];
  27                         }while(node && node.nodeType != 1);
  28                         return node && registry.byNode(node);   // dijit/_WidgetBase
  29                 },
  30
  31                 getPreviousSibling: function(){
  32                         // summary:
  33                         //              Returns null if this is the first child of the parent,
  34                         //              otherwise returns the next element sibling to the "left".
  35
  36                         return this._getSibling("previous"); // dijit/_WidgetBase
  37                 },
  38
  39                 getNextSibling: function(){
  40                         // summary:
  41                         //              Returns null if this is the last child of the parent,
  42                         //              otherwise returns the next element sibling to the "right".
  43
  44                         return this._getSibling("next"); // dijit/_WidgetBase
  45                 },
  46
  47                 getIndexInParent: function(){
  48                         // summary:
  49                         //              Returns the index of this widget within its container parent.
  50                         //              It returns -1 if the parent does not exist, or if the parent
  51                         //              is not a dijit._Container
  52
  53                         var p = this.getParent();
  54                         if(!p || !p.getIndexOfChild){
  55                                 return -1; // int
  56                         }
  57                         return p.getIndexOfChild(this); // int
  58                 }
  59         });
  60 });