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manager.js
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manager.js
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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, {
constructor: function(){
// summary:
// A set of widgets indexed by id
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
}
});
// registry: list of all widgets on page
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 + "_" +
(dijit._widgetTypeCtr[widgetType] !== undefined ?
++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;
};
}

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