@Override
public void actionPerformed(@NotNull AnActionEvent e) {
PrevNextDifferenceIterable iterable =
DiffDataKeys.PREV_NEXT_DIFFERENCE_ITERABLE.getData(e.getDataContext());
if (iterable != null && iterable.canGoPrev()) {
iterable.goPrev();
}
}
@Override
public void update(@NotNull AnActionEvent e) {
if (!ActionPlaces.DIFF_TOOLBAR.equals(e.getPlace())) {
e.getPresentation().setEnabled(true);
return;
}
PrevNextDifferenceIterable iterable =
DiffDataKeys.PREV_NEXT_DIFFERENCE_ITERABLE.getData(e.getDataContext());
if (iterable != null && iterable.canGoPrev()) {
e.getPresentation().setEnabled(true);
return;
}
e.getPresentation().setEnabled(false);
}
