Question

I’ve extended a label in GWT and added a clickEvent. Right now I have it successfully detecting if Control or Alt was held during the click on the label, but ideally I want to have it check if spacebar was held down. Is there any way this is possible? Thanks. Current code is below.

public class CategoryLabel extends Label {
    public class CategoryLabelHandler implements ClickHandler {
        public void onClick(ClickEvent event) {
            CategoryLabel cl = (CategoryLabel) event.getSource();
            boolean altDown = event.isAltKeyDown();
            boolean ctrlDown = event.isControlKeyDown();

            doStuff(cl, altDown, ctrlDown); //Etc. 
        }
    }
}

Answer 1

You need the NativeEvent to get the keyCode of it:

NativeEvent nativeEvent  = event.getNativeEvent();
int keyCode = nativeEvent.getKeyCode();
if(keyCode == 32){}

Here is a full list of all possible keyCodes: https://developer.mozilla.org/en/DOM/event/UIEvent/KeyEvent