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define("dijit/registry", [
"dojo/_base/array", // array.forEach array.map
"dojo/sniff", // has("ie")
"dojo/_base/unload", // unload.addOnWindowUnload
"dojo/_base/window", // win.body
"./main" // dijit._scopeName
], function(array, has, unload, win, dijit){
// module:
// dijit/registry
var _widgetTypeCtr = {}, hash = {};
var registry = {
// summary:
// Registry of existing widget on page, plus some utility methods.
// length: Number
// Number of registered widgets
length: 0,
add: function(widget){
// summary:
// Add a widget to the registry. If a duplicate ID is detected, a error is thrown.
// widget: dijit/_WidgetBase
// Any dijit/_WidgetBase subclass.
if(hash[widget.id]){
throw new Error("Tried to register widget with id==" + widget.id + " but that id is already registered");
}
hash[widget.id] = widget;
this.length++;
},
remove: function(/*String*/ id){
// summary:
// Remove a widget from the registry. Does not destroy the widget; simply
// removes the reference.
if(hash[id]){
delete hash[id];
this.length--;
}
},
byId: function(/*String|Widget*/ id){
// summary:
// Find a widget by it's id.
// If passed a widget then just returns the widget.
return typeof id == "string" ? hash[id] : id; // dijit/_WidgetBase
},
byNode: function(/*DOMNode*/ node){
// summary:
// Returns the widget corresponding to the given DOMNode
return hash[node.getAttribute("widgetId")]; // dijit/_WidgetBase
},
toArray: function(){
// summary:
// Convert registry into a true Array
//
// example:
// Work with the widget .domNodes in a real Array
// | array.map(registry.toArray(), function(w){ return w.domNode; });
var ar = [];
for(var id in hash){
ar.push(hash[id]);
}
return ar; // dijit/_WidgetBase[]
},
getUniqueId: function(/*String*/widgetType){
// summary:
// Generates a unique id for a given widgetType
var id;
do{
id = widgetType + "_" +
(widgetType in _widgetTypeCtr ?
++_widgetTypeCtr[widgetType] : _widgetTypeCtr[widgetType] = 0);
}while(hash[id]);
return dijit._scopeName == "dijit" ? id : dijit._scopeName + "_" + id; // String
},
findWidgets: function(root, skipNode){
// summary:
// Search subtree under root returning widgets found.
// Doesn't search for nested widgets (ie, widgets inside other widgets).
// root: DOMNode
// Node to search under.
// skipNode: DOMNode
// If specified, don't search beneath this node (usually containerNode).
var outAry = [];
function getChildrenHelper(root){
for(var node = root.firstChild; node; node = node.nextSibling){
if(node.nodeType == 1){
var widgetId = node.getAttribute("widgetId");
if(widgetId){
var widget = hash[widgetId];
if(widget){ // may be null on page w/multiple dojo's loaded
outAry.push(widget);
}
}else if(node !== skipNode){
getChildrenHelper(node);
}
}
}
}
getChildrenHelper(root);
return outAry;
},
_destroyAll: function(){
// summary:
// Code to destroy all widgets and do other cleanup on page unload
// Clean up focus manager lingering references to widgets and nodes
dijit._curFocus = null;
dijit._prevFocus = null;
dijit._activeStack = [];
// Destroy all the widgets, top down
array.forEach(registry.findWidgets(win.body()), function(widget){
// Avoid double destroy of widgets like Menu that are attached to <body>
// even though they are logically children of other widgets.
if(!widget._destroyed){
if(widget.destroyRecursive){
widget.destroyRecursive();
}else if(widget.destroy){
widget.destroy();
}
}
});
},
getEnclosingWidget: function(/*DOMNode*/ node){
// summary:
// Returns the widget whose DOM tree contains the specified DOMNode, or null if
// the node is not contained within the DOM tree of any widget
while(node){
var id = node.nodeType == 1 && node.getAttribute("widgetId");
if(id){
return hash[id];
}
node = node.parentNode;
}
return null;
},
// In case someone needs to access hash.
// Actually, this is accessed from WidgetSet back-compatibility code
_hash: hash
};
dijit.registry = registry;
return registry;
});
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