Ext.define('MyApp.view.MyWindow1', {
    extend: 'Ext.window.Window',

    height: 250,
    width: 400,
    layout: {
        type: 'absolute'
    },
    title: 'My Window',

    initComponent: function() {
        var me = this;

        Ext.applyIf(me, {
            items: [
                {
                    xtype: 'button',
                    x: 300,
                    y: 170,
                    text: 'MyButton',
                    listeners: {
                        click: {
                            fn: me.onButtonClick,
                            scope: me
                        }
                    }
                },
                {
                    xtype: 'textfield',
                    x: 111,
                    y: 80,
                    fieldLabel: 'Label'
                }
            ]
        });

        me.callParent(arguments);
    },

    onButtonClick: function(button, e, eOpts) {
        alert("Foo");
    }

});