Ext.namespace('Ext.ux.plugins');
Ext.ux.plugins.ContainerMask = function(opt) {
    var options = opt || {};

    return {
        init: function(c) {
            Ext.applyIf(c, {
                showMask: function(msg, msgClass, maskClass) {
                    var el;
                    if (this.rendered && (el = this[options.el] || Ext.get(options.el) || this.getEl ? this.getEl() : null)) {
                        el.mask.call(el, msg || options.msg, msgClass || options.msgClass, maskClass || options.maskClass);
                    }
                },
                hideMask: function() {
                    var el;
                    if (this.rendered && (el = this[options.el] || Ext.get(options.el) || this.getEl ? this.getEl() : null)) {
                        el.unmask.call(el);
                    }
                }
            });
            if (options.masked) {
                c.on('render', c.showMask.createDelegate(c, [null]), c, { delay: 10, single: true });
            }
        }
    };
};