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 public abstract class SubmenuAction extends Action implements MenuListener, IMenuCreator { 18 private Menu mMenu; 19 20 public 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 @Override 30 public void dispose() { 31 if (mMenu != null) { 32 mMenu.dispose(); 33 mMenu = null; 34 } 35 } 36 37 @Override 38 public Menu getMenu(Control parent) { 39 return null; 40 } 41 42 @Override 43 public Menu getMenu(Menu parent) { 44 mMenu = new Menu(parent); 45 mMenu.addMenuListener(this); 46 return mMenu; 47 } 48 49 @Override 50 public void menuHidden(MenuEvent e) { 51 } 52 53 protected abstract void addMenuItems(Menu menu); 54 55 @Override 56 public void menuShown(MenuEvent e) { 57 // TODO: Replace this stuff with manager.setRemoveAllWhenShown(true); 58 MenuItem[] menuItems = mMenu.getItems(); 59 for (int i = 0; i < menuItems.length; i++) { 60 menuItems[i].dispose(); 61 } 62 addMenuItems(mMenu); 63 } 64 65 protected void addDisabledMessageItem(String message) { 66 IAction action = new Action(message, IAction.AS_PUSH_BUTTON) { 67 @Override 68 public void run() { 69 } 70 }; 71 action.setEnabled(false); 72 new ActionContributionItem(action).fill(mMenu, -1); 73 74 } 75 } 76
