define([
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"dojo/_base/declare", // declare
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"./registry" // registry.getEnclosingWidget(), registry.byNode()
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], function(declare, registry){
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// module:
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// dijit/_Contained
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return declare("dijit._Contained", null, {
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// summary:
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// Mixin for widgets that are children of a container widget
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// example:
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// | // make a basic custom widget that knows about its parents
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// | declare("my.customClass",[dijit._WidgetBase, dijit._Contained],{});
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_getSibling: function(/*String*/ which){
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// summary:
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// Returns next or previous sibling
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// which:
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// Either "next" or "previous"
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// tags:
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// private
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var node = this.domNode;
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do{
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node = node[which+"Sibling"];
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}while(node && node.nodeType != 1);
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return node && registry.byNode(node); // dijit/_WidgetBase
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},
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getPreviousSibling: function(){
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// summary:
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// Returns null if this is the first child of the parent,
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// otherwise returns the next element sibling to the "left".
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return this._getSibling("previous"); // dijit/_WidgetBase
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},
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getNextSibling: function(){
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// summary:
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// Returns null if this is the last child of the parent,
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// otherwise returns the next element sibling to the "right".
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return this._getSibling("next"); // dijit/_WidgetBase
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},
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getIndexInParent: function(){
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// summary:
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// Returns the index of this widget within its container parent.
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// It returns -1 if the parent does not exist, or if the parent
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// is not a dijit/_Container
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var p = this.getParent();
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if(!p || !p.getIndexOfChild){
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return -1; // int
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}
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return p.getIndexOfChild(this); // int
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}
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});
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});
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