1 2 package com.android.ide.eclipse.adt.internal.editors.layout.gle2; 3 4 import org.eclipse.jface.action.Action; 5 import org.eclipse.jface.action.ActionContributionItem; 6 import org.eclipse.jface.action.IAction; 7 import org.eclipse.jface.action.IMenuCreator; 8 import org.eclipse.swt.events.MenuEvent; 9 import org.eclipse.swt.events.MenuListener; 10 import org.eclipse.swt.widgets.Control; 11 import org.eclipse.swt.widgets.Menu; 12 import org.eclipse.swt.widgets.MenuItem; 13 14 /** 15 * Action which creates a submenu that is dynamically populated by subclasses 16 */ 17 abstract class SubmenuAction extends Action implements MenuListener, IMenuCreator { 18 private Menu mMenu; 19 20 SubmenuAction(String title) { 21 super(title, IAction.AS_DROP_DOWN_MENU); 22 } 23 24 @Override 25 public IMenuCreator getMenuCreator() { 26 return this; 27 } 28 29 public void dispose() { 30 if (mMenu != null) { 31 mMenu.dispose(); 32 mMenu = null; 33 } 34 } 35 36 public Menu getMenu(Control parent) { 37 return null; 38 } 39 40 public Menu getMenu(Menu parent) { 41 mMenu = new Menu(parent); 42 mMenu.addMenuListener(this); 43 return mMenu; 44 } 45 46 public void menuHidden(MenuEvent e) { 47 } 48 49 protected abstract void addMenuItems(Menu menu); 50 51 public void menuShown(MenuEvent e) { 52 // TODO: Replace this stuff with manager.setRemoveAllWhenShown(true); 53 MenuItem[] menuItems = mMenu.getItems(); 54 for (int i = 0; i < menuItems.length; i++) { 55 menuItems[i].dispose(); 56 } 57 addMenuItems(mMenu); 58 } 59 60 protected void addDisabledMessageItem(String message) { 61 IAction action = new Action(message, IAction.AS_PUSH_BUTTON) { 62 @Override 63 public void run() { 64 } 65 }; 66 action.setEnabled(false); 67 new ActionContributionItem(action).fill(mMenu, -1); 68 69 } 70 } 71
