uas-platform/frontend/uas-web/app/auth/LoginController.js

Ext.define('uas.auth.LoginController', {
    extend: 'Ext.app.ViewController',
    alias: 'controller.login',

    init: function () {
        this.callParent(arguments);
    },

    onLoginButton: function () {
        var me = this,
            view = me.getView(),
            form = me.lookup('authdialog'),
            values = form.getValues();
        view.mask('请稍等...');
        me.fireEvent('login', values);
    }
});