Yii - enter as tab

view.php

$JS = <<<JS
$('body').on('keydown', 'input, select', function(e) {
    if (e.key === "Enter") {
        var self = $(this), form = self.parents('form:eq(0)'), focusable, next;
        focusable = form.find('input,a,select,button,textarea').filter(':visible');
        next = focusable.eq(focusable.index(this)+1);
        if (next.length) {
            next.focus();
        } else {
            form.submit();
        }
        return false;
    }
});
JS;
$this->registerJs($JS);