@Override
protected void onLoad() {
handler = StarredChanges.addHandler(changeId, this);
}
/**
* Toggles the state of the star, as if the user clicked on the image. This will broadcast the
* new star status to all interested UI widgets, and RPC to the server to store the changed
* value.
*/
public void toggleStar() {
StarredChanges.toggleStar(changeId, !starred);
}