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tt-rss/lib/dijit/_Contained.js

77 lines
2.1 KiB
JavaScript

/*
Copyright (c) 2004-2011, The Dojo Foundation All Rights Reserved.
Available via Academic Free License >= 2.1 OR the modified BSD license.
see: http://dojotoolkit.org/license for details
*/
if(!dojo._hasResource["dijit._Contained"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code.
dojo._hasResource["dijit._Contained"] = true;
dojo.provide("dijit._Contained");
dojo.declare("dijit._Contained",
null,
{
// summary:
// Mixin for widgets that are children of a container widget
//
// example:
// | // make a basic custom widget that knows about it's parents
// | dojo.declare("my.customClass",[dijit._Widget,dijit._Contained],{});
getParent: function(){
// summary:
// Returns the parent widget of this widget, assuming the parent
// specifies isContainer
var parent = dijit.getEnclosingWidget(this.domNode.parentNode);
return parent && parent.isContainer ? parent : null;
},
_getSibling: function(/*String*/ which){
// summary:
// Returns next or previous sibling
// which:
// Either "next" or "previous"
// tags:
// private
var node = this.domNode;
do{
node = node[which+"Sibling"];
}while(node && node.nodeType != 1);
return node && dijit.byNode(node); // dijit._Widget
},
getPreviousSibling: function(){
// summary:
// Returns null if this is the first child of the parent,
// otherwise returns the next element sibling to the "left".
return this._getSibling("previous"); // dijit._Widget
},
getNextSibling: function(){
// summary:
// Returns null if this is the last child of the parent,
// otherwise returns the next element sibling to the "right".
return this._getSibling("next"); // dijit._Widget
},
getIndexInParent: function(){
// summary:
// Returns the index of this widget within its container parent.
// It returns -1 if the parent does not exist, or if the parent
// is not a dijit._Container
var p = this.getParent();
if(!p || !p.getIndexOfChild){
return -1; // int
}
return p.getIndexOfChild(this); // int
}
}
);
}