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74 lines
1.9 KiB
JavaScript
74 lines
1.9 KiB
JavaScript
dojo.provide("dijit._Contained");
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dojo.declare("dijit._Contained",
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null,
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{
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// summary
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// Mixin for widgets that are children of a container widget
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//
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// example:
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// | // make a basic custom widget that knows about it's parents
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// | dojo.declare("my.customClass",[dijit._Widget,dijit._Contained],{});
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//
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getParent: function(){
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// summary:
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// Returns the parent widget of this widget, assuming the parent
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// implements dijit._Container
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for(var p=this.domNode.parentNode; p; p=p.parentNode){
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var id = p.getAttribute && p.getAttribute("widgetId");
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if(id){
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var parent = dijit.byId(id);
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return parent.isContainer ? parent : null;
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}
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}
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return null;
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},
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_getSibling: function(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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if(!node){ return null; } // null
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var id = node.getAttribute("widgetId");
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return dijit.byId(id);
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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"); // Mixed
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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"); // Mixed
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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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