Titanium - Layout function

ti.layout.js

/*
Layout constructor
usage:

var oLayout = {
    type: 'View',
    style: { width: 100, height: 200 },
    event: {
        type: 'click',
        callback: function(){}
    },
    children:[{
        type : 'Label',
        style : {
            text : 'test'
        }
    }]
};
var view = layout(oLayout);
oLayout = null;
*/
function layout(oParent, scope) {
    var obj,
        constructor = oParent.os == null ? Ti.UI : Ti.UI[oParent.os];
    
    if (oParent.os) {
        Titanium.UI.iOS.TabbedBar;
    }
    
    obj = constructor['create' + oParent.type] ( oParent.style || {} );
    
    //add event listener
    if (oParent.event) {
        if (!Array.isArray(oParent.event)) {
            obj.addEventListener(oParent.event.type, oParent.event.callback);
        } else {
            for (var i = 0, ii = oParent.event.length; i < ii; i++) {
                var ev = oParent.event[i];
                obj.addEventListener(ev.type, ev.callback);
            };
        }          
    }
    
    if (oParent.children) {
        if (oParent.type != 'TableView') {
            for (var i = 0, ii = oParent.children.length; i < ii; i++) {
                obj.add( layout(oParent.children[i], scope) );
            };  
        } else {
            var listRow = [];
            for (var i = 0, ii = oParent.children.length; i < ii; i++) {
                listRow.push( layout(oParent.children[i], scope) );
            };  
            obj.setData(listRow);
            listRow = null;
        }        
    }      
    
    //meta data
    // obj._id = oParent.id;
    // obj._type = oParent.type;
    
    //add generated object to global scope
    if (scope && oParent.id) {
        scope[oParent.id] = obj;
    }
    
    return obj;
}