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if(!dojo._hasResource["dijit._base.manager"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code.
dojo._hasResource["dijit._base.manager"] = true;
dojo.provide("dijit._base.manager");
dojo.declare("dijit.WidgetSet", null, {
// summary:
// A set of widgets indexed by id
constructor: function(){
this._hash={};
},
add: function(/*Widget*/ widget){
if(this._hash[widget.id]){
throw new Error("Tried to register widget with id==" + widget.id + " but that id is already registered");
}
this._hash[widget.id]=widget;
},
remove: function(/*String*/ id){
delete this._hash[id];
},
forEach: function(/*Function*/ func){
for(var id in this._hash){
func(this._hash[id]);
}
},
filter: function(/*Function*/ filter){
var res = new dijit.WidgetSet();
this.forEach(function(widget){
if(filter(widget)){ res.add(widget); }
});
return res; // dijit.WidgetSet
},
byId: function(/*String*/ id){
return this._hash[id];
},
byClass: function(/*String*/ cls){
return this.filter(function(widget){ return widget.declaredClass==cls; }); // dijit.WidgetSet
}
});
/*=====
dijit.registry = {
// summary: A list of widgets on a page.
// description: Is an instance of dijit.WidgetSet
};
=====*/
dijit.registry = new dijit.WidgetSet();
dijit._widgetTypeCtr = {};
dijit.getUniqueId = function(/*String*/widgetType){
// summary
// Generates a unique id for a given widgetType
var id;
do{
id = widgetType + "_" +
(widgetType in dijit._widgetTypeCtr ?
++dijit._widgetTypeCtr[widgetType] : dijit._widgetTypeCtr[widgetType] = 0);
}while(dijit.byId(id));
return id; // String
};
if(dojo.isIE){
// Only run this for IE because we think it's only necessary in that case,
// and because it causes problems on FF. See bug #3531 for details.
dojo.addOnUnload(function(){
dijit.registry.forEach(function(widget){ widget.destroy(); });
});
}
dijit.byId = function(/*String|Widget*/id){
// summary:
// Returns a widget by its id, or if passed a widget, no-op (like dojo.byId())
return (dojo.isString(id)) ? dijit.registry.byId(id) : id; // Widget
};
dijit.byNode = function(/* DOMNode */ node){
// summary:
// Returns the widget as referenced by node
return dijit.registry.byId(node.getAttribute("widgetId")); // Widget
};
dijit.getEnclosingWidget = function(/* DOMNode */ node){
// summary:
// Returns the widget whose dom tree contains node or null if
// the node is not contained within the dom tree of any widget
while(node){
if(node.getAttribute && node.getAttribute("widgetId")){
return dijit.registry.byId(node.getAttribute("widgetId"));
}
node = node.parentNode;
}
return null;
};
// elements that are tab-navigable if they have no tabindex value set
// (except for "a", which must have an href attribute)
dijit._tabElements = {
area: true,
button: true,
input: true,
object: true,
select: true,
textarea: true
};
dijit._isElementShown = function(/*Element*/elem){
var style = dojo.style(elem);
return (style.visibility != "hidden")
&& (style.visibility != "collapsed")
&& (style.display != "none");
}
dijit.isTabNavigable = function(/*Element*/elem){
// summary:
// Tests if an element is tab-navigable
if(dojo.hasAttr(elem, "disabled")){ return false; }
var hasTabindex = dojo.hasAttr(elem, "tabindex");
var tabindex = dojo.attr(elem, "tabindex");
if(hasTabindex && tabindex >= 0) {
return true; // boolean
}
var name = elem.nodeName.toLowerCase();
if(((name == "a" && dojo.hasAttr(elem, "href"))
|| dijit._tabElements[name])
&& (!hasTabindex || tabindex >= 0)){
return true; // boolean
}
return false; // boolean
};
dijit._getTabNavigable = function(/*DOMNode*/root){
// summary:
// Finds the following descendants of the specified root node:
// * the first tab-navigable element in document order
// without a tabindex or with tabindex="0"
// * the last tab-navigable element in document order
// without a tabindex or with tabindex="0"
// * the first element in document order with the lowest
// positive tabindex value
// * the last element in document order with the highest
// positive tabindex value
var first, last, lowest, lowestTabindex, highest, highestTabindex;
var walkTree = function(/*DOMNode*/parent){
dojo.query("> *", parent).forEach(function(child){
var isShown = dijit._isElementShown(child);
if(isShown && dijit.isTabNavigable(child)){
var tabindex = dojo.attr(child, "tabindex");
if(!dojo.hasAttr(child, "tabindex") || tabindex == 0){
if(!first){ first = child; }
last = child;
}else if(tabindex > 0){
if(!lowest || tabindex < lowestTabindex){
lowestTabindex = tabindex;
lowest = child;
}
if(!highest || tabindex >= highestTabindex){
highestTabindex = tabindex;
highest = child;
}
}
}
if(isShown){ walkTree(child) }
});
};
if(dijit._isElementShown(root)){ walkTree(root) }
return { first: first, last: last, lowest: lowest, highest: highest };
}
dijit.getFirstInTabbingOrder = function(/*String|DOMNode*/root){
// summary:
// Finds the descendant of the specified root node
// that is first in the tabbing order
var elems = dijit._getTabNavigable(dojo.byId(root));
return elems.lowest ? elems.lowest : elems.first; // Element
};
dijit.getLastInTabbingOrder = function(/*String|DOMNode*/root){
// summary:
// Finds the descendant of the specified root node
// that is last in the tabbing order
var elems = dijit._getTabNavigable(dojo.byId(root));
return elems.last ? elems.last : elems.highest; // Element
};
}
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