// Lock grabs the keyboard and pointer locking the X11 display
func Lock(X *xgb.Conn) error {
screen := xproto.Setup(X).DefaultScreen(X)
passEventsToOwner := false
kbCookie := xproto.GrabKeyboard(X, passEventsToOwner, screen.Root, xproto.TimeCurrentTime, xproto.GrabModeAsync, xproto.GrabModeAsync)
kbReply, err := kbCookie.Reply()
if err != nil {
return err
}
if kbReply.Status != xproto.GrabStatusSuccess {
return fmt.Errorf("GrabKeyboard status %v", grabStatus(kbReply.Status))
}
ptrCookie := xproto.GrabPointer(X, passEventsToOwner, screen.Root, 0, xproto.GrabModeAsync, xproto.GrabModeAsync, xproto.AtomNone, xproto.AtomNone, xproto.TimeCurrentTime)
ptrReply, err := ptrCookie.Reply()
if err != nil {
xproto.UngrabKeyboard(X, xproto.TimeCurrentTime)
return err
}
if ptrReply.Status != xproto.GrabStatusSuccess {
return fmt.Errorf("GrabPointer status %v", grabStatus(kbReply.Status))
}
return nil
}
// UngrabKeyboard undoes GrabKeyboard.
func UngrabKeyboard(xu *xgbutil.XUtil) {
xproto.UngrabKeyboard(xu.Conn(), 0)
}
// Unlock restores user control of keyboard and pointer
func Unlock(X *xgb.Conn) {
xproto.UngrabKeyboard(X, xproto.TimeCurrentTime)
xproto.UngrabPointer(X, xproto.TimeCurrentTime)
}