onKey processes subscribed key events
(evname string, ev interface{})
| 160 | |
| 161 | // onKey processes subscribed key events |
| 162 | func (b *Button) onKey(evname string, ev interface{}) { |
| 163 | |
| 164 | kev := ev.(*window.KeyEvent) |
| 165 | if kev.Key != window.KeyEnter { |
| 166 | return |
| 167 | } |
| 168 | switch evname { |
| 169 | case OnKeyDown: |
| 170 | b.pressed = true |
| 171 | b.update() |
| 172 | b.Dispatch(OnClick, nil) |
| 173 | case OnKeyUp: |
| 174 | b.pressed = false |
| 175 | b.update() |
| 176 | } |
| 177 | } |
| 178 | |
| 179 | // update updates the button visual state |
| 180 | func (b *Button) update() { |