/** Opens the SubMenu */
public void menuKeyTyped(MenuKeyEvent e) {
if (!crossMenuMnemonic) {
JPopupMenu pm = getActivePopupMenu();
if (pm != null && pm != menuItem.getParent()) {
return;
}
}
int key = menuItem.getMnemonic();
if (key == 0) return;
MenuElement path[] = e.getPath();
if (lower((char) key) == lower(e.getKeyChar())) {
JPopupMenu popupMenu = ((JMenu) menuItem).getPopupMenu();
MenuElement sub[] = popupMenu.getSubElements();
if (sub.length > 0) {
MenuSelectionManager manager = e.getMenuSelectionManager();
MenuElement newPath[] = new MenuElement[path.length + 2];
System.arraycopy(path, 0, newPath, 0, path.length);
newPath[path.length] = popupMenu;
newPath[path.length + 1] = sub[0];
manager.setSelectedPath(newPath);
}
e.consume();
}
}
/**
* Handles the mnemonics for the menu items. Will also handle duplicate mnemonics. Perhaps this
* should be moved into BasicPopupMenuUI. See 4670831
*/
public void menuKeyPressed(MenuKeyEvent e) {
// Handle the case for Escape or Enter...
char keyChar = e.getKeyChar();
if (!Character.isLetterOrDigit(keyChar)) return;
MenuSelectionManager manager = e.getMenuSelectionManager();
MenuElement selectedPath[] = manager.getSelectedPath();
for (int i = selectedPath.length - 1; i >= 0; i--) {
if (selectedPath[i] == menuItem) {
JPopupMenu popupMenu = ((JMenu) menuItem).getPopupMenu();
MenuElement items[] = popupMenu.getSubElements();
int index = -1;
for (int j = 0; j < items.length; j++) {
int key = ((JMenuItem) items[j]).getMnemonic();
if (Character.toLowerCase((char) key) == Character.toLowerCase(keyChar)) {
index = j;
break;
}
}
if (index != -1) {
// Invoke the menu action
JMenuItem item = (JMenuItem) items[index];
if (!(item instanceof JMenu)) {
// Let Submenus be handled by menuKeyTyped
manager.clearSelectedPath();
item.doClick();
}
}
e.consume();
return;
}
}
}