/**
* Add all the menu currently available to the menu. This may be called any time BlueJ feels that
* the menu needs to be updated.
*
* @param onThisProject a specific project to look for, or null for all projects.
*/
public void addExtensionMenu(Project onThisProject) {
// Get all menus that can be possibly be generated now.
List<JMenuItem> menuItems = extMgr.getMenuItems(menuGenerator, onThisProject);
// Retrieve all the items from the current menu
MenuElement[] elements = popupMenu.getSubElements();
for (int index = 0; index < elements.length; index++) {
JComponent aComponent = (JComponent) elements[index].getComponent();
if (aComponent == null) {
continue;
}
if (!(aComponent instanceof JMenuItem)) {
continue;
}
ExtensionWrapper aWrapper =
(ExtensionWrapper) aComponent.getClientProperty("bluej.extmgr.ExtensionWrapper");
if (aWrapper == null) {
continue;
}
popupMenu.remove(aComponent);
}
popupMenu.remove(menuSeparator);
// If the provided menu is empty we are done here.
if (menuItems.isEmpty()) {
return;
}
popupMenu.add(menuSeparator);
for (JMenuItem menuItem : menuItems) {
popupMenu.add(menuItem);
}
}
/**
* Notify to all valid extensions that this menu Item is about to be displayed.
*
* @param event The associated event
*/
@Override
public void popupMenuWillBecomeVisible(PopupMenuEvent event) {
int itemsCount = 0;
JPopupMenu aPopup = (JPopupMenu) event.getSource();
MenuElement[] elements = aPopup.getSubElements();
for (int index = 0; index < elements.length; index++) {
JComponent aComponent = (JComponent) elements[index].getComponent();
if (aComponent == null) {
continue;
}
if (!(aComponent instanceof JMenuItem)) {
continue;
}
ExtensionWrapper aWrapper =
(ExtensionWrapper) aComponent.getClientProperty("bluej.extmgr.ExtensionWrapper");
if (aWrapper == null) {
continue;
}
if (!aWrapper.isValid()) {
popupMenu.remove(aComponent);
continue;
}
aWrapper.safePostMenuItem(menuGenerator, (JMenuItem) aComponent);
itemsCount++;
}
if (itemsCount <= 0) {
popupMenu.remove(menuSeparator);
}
}