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package com.android.ide.eclipse.adt.internal.editors.layout.gle2;
import org.eclipse.jface.action.Action;
import org.eclipse.jface.action.ActionContributionItem;
import org.eclipse.jface.action.IAction;
import org.eclipse.jface.action.IMenuCreator;
import org.eclipse.swt.events.MenuEvent;
import org.eclipse.swt.events.MenuListener;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Menu;
import org.eclipse.swt.widgets.MenuItem;
/**
* Action which creates a submenu that is dynamically populated by subclasses
*/
public abstract class SubmenuAction extends Action implements MenuListener, IMenuCreator {
private Menu mMenu;
public SubmenuAction(String title) {
super(title, IAction.AS_DROP_DOWN_MENU);
}
@Override
public IMenuCreator getMenuCreator() {
return this;
}
@Override
public void dispose() {
if (mMenu != null) {
mMenu.dispose();
mMenu = null;
}
}
@Override
public Menu getMenu(Control parent) {
return null;
}
@Override
public Menu getMenu(Menu parent) {
mMenu = new Menu(parent);
mMenu.addMenuListener(this);
return mMenu;
}
@Override
public void menuHidden(MenuEvent e) {
}
protected abstract void addMenuItems(Menu menu);
@Override
public void menuShown(MenuEvent e) {
// TODO: Replace this stuff with manager.setRemoveAllWhenShown(true);
MenuItem[] menuItems = mMenu.getItems();
for (int i = 0; i < menuItems.length; i++) {
menuItems[i].dispose();
}
addMenuItems(mMenu);
}
protected void addDisabledMessageItem(String message) {
IAction action = new Action(message, IAction.AS_PUSH_BUTTON) {
@Override
public void run() {
}
};
action.setEnabled(false);
new ActionContributionItem(action).fill(mMenu, -1);
}
}
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