func (t *TextField) keyboard(k ui.Key) {
if k.Shift() {
c0 := t.Caret[0]
defer func() {
// keep c0 rooted when holding shift
t.Caret[0] = c0
}()
}
switch k.Trim() {
case ui.Backspace:
t.backspace()
case ui.Delete:
t.forwardDelete()
case ui.Left:
t.moveBackward(shift)
case ui.Right:
t.moveForward(shift)
default:
t.emacs(k)
}
}
func (t *TextField) emacs(key ui.Key) {
switch key.TrimShift() {
case "^e":
t.Caret[0] = len(t.Text)
t.Caret[1] = len(t.Text)
case "^a":
t.Caret[0] = 0
t.Caret[1] = 0
case "^b":
t.moveBackward(key.Shift())
case "^f":
t.moveForward(key.Shift())
}
}