Selecting a JList with right-click

Question

What's the best way for a JList to select its value with a right-click. I plan on bringing up a JPopupMenu on the same right click too.

Answer 1

You would probably add the standard listener for this sort of thing
with the addition of selecting the item under the mouse.
class PopupListener extends MouseAdapter {
    public void mousePressed(MouseEvent e) {
        maybeShowPopup(e);
    public void mouseReleased(MouseEvent e) {
        maybeShowPopup(e);
    private void maybeShowPopup(MouseEvent e) {
        if (e.isPopupTrigger()) {
            // Make selection
            JList list = (JList) e.getComponent();
            Point p = e.getPoint();
            int index = list.locationToIndex( p );
            if ( index != -1 ) {
                 Rectangle r = list.getCellBounds( index, index );
                 if ( r.x <= p.x && p.x <= r.x + r.width &&
                      r.y <= p.y && p.y <= r.y + r.height )
                     list.setSelectedIndex( index );
            // show popup
            popup.show(e.getComponent(),
                       e.getX(), e.getY());
}If you want more advanced selection capabalities with the right click,
I'd look at implementing your own MouseInputHandler which checks for
isMouseLeftButton() || isPopupTrigger(); see BasicListUI.MouseInputHandler.