add "Ctrl+A" in specific keys

[atsaeid]

add event to:
if (_instance.preventDefaultForKeyCode(e) === true) {
e.preventDefault();
}
//----------------------//
and add keys to :

switch (keyCode) {
case 0: // browser specific special key
case 8: // backspace
case 9: // tab
case 35: // end
case 36: // home
case 37: // left
case 39: // right
case 144: // num lock
return false;

            case 65:    // A
                if (e.ctrlKey) { return false; }
            case 97:    // a
                if (e.ctrlKey) { return false; }

            default:
                return true;
        }