source: Dev/trunk/src/client/dojox/mobile/viewRegistry.js @ 532

define([
        "dojo/_base/array",
        "dojo/dom-class",
        "dijit/registry"
], function(array, domClass, registry){

        // module:
        //              dojox/mobile/viewRegistry

        var viewRegistry = {
                // summary:
                //              A registry of existing views.

                // length: Number
                //              The number of registered views.
                length: 0,
                
                // hash: [private] Object
                //              The object used to register views.
                hash: {},
                
                // initialView: [private] dojox/mobile/View
                //              The initial view.
                initialView: null,

                add: function(/*dojox/mobile/View*/ view){
                        // summary:
                        //              Adds a view to the registry.
                        this.hash[view.id] = view;
                        this.length++;
                },

                remove: function(/*String*/ id){
                        // summary:
                        //              Removes a view from the registry.
                        if(this.hash[id]){
                                delete this.hash[id];
                                this.length--;
                        }
                },

                getViews: function(){
                        // summary:
                        //              Gets all registered views.
                        // returns: Array
                        var arr = [];
                        for(var i in this.hash){
                                arr.push(this.hash[i]);
                        }
                        return arr;
                },

                getParentView: function(/*dojox/mobile/View*/ view){
                        // summary:
                        //              Gets the parent view of the specified view.
                        // returns: dojox/mobile/View
                        for(var v = view.getParent(); v; v = v.getParent()){
                                if(domClass.contains(v.domNode, "mblView")){ return v; }
                        }
                        return null;
                },

                getChildViews: function(/*dojox/mobile/View*/ parent){
                        // summary:
                        //              Gets the children views of the specified view.
                        // returns: Array
                        return array.filter(this.getViews(), function(v){ return this.getParentView(v) === parent; }, this);
                },

                getEnclosingView: function(/*DomNode*/ node){
                        // summary:
                        //              Gets the view containing the specified DOM node.
                        // returns: dojox/mobile/View
                        for(var n = node; n && n.tagName !== "BODY"; n = n.parentNode){
                                if(n.nodeType === 1 && domClass.contains(n, "mblView")){
                                        return registry.byNode(n);
                                }
                        }
                        return null;
                },

                getEnclosingScrollable: function(/*DomNode*/ node){
                        // summary:
                        //              Gets the dojox/mobile/scrollable object containing the specified DOM node.
                        // returns: dojox/mobile/scrollable
                        for(var w = registry.getEnclosingWidget(node); w; w = w.getParent()){
                                if(w.scrollableParams && w._v){ return w; }
                        }
                        return null;
                }
        };

        return viewRegistry;
});