package com.nokia.carbide.cpp;

import java.lang.reflect.InvocationHandler;

import java.lang.reflect.Method;

import java.lang.reflect.Proxy;

import org.eclipse.jface.action.ActionContributionItem;

import org.eclipse.jface.action.IAction;

import org.eclipse.jface.action.IContributionItem;

import org.eclipse.jface.action.MenuManager;

import org.eclipse.jface.preference.IPreferenceStore;

import org.eclipse.swt.widgets.Display;

import org.eclipse.ui.IStartup;

import org.eclipse.ui.IWindowListener;

import org.eclipse.ui.IWorkbenchWindow;

import org.eclipse.ui.PlatformUI;

import org.eclipse.ui.internal.WorkbenchWindow;

public class ProductStartup implements IStartup {

	public void replaceAboutAction(final IWorkbenchWindow window)

	{

		if (window == null || !(window instanceof WorkbenchWindow))

			return;

		MenuManager manager = ((WorkbenchWindow)window).getMenuManager();

		final IPreferenceStore store = ProductPlugin.getDefault().getPreferenceStore();

		for (IContributionItem item : manager.getItems()) {

			if (item instanceof MenuManager) {

				MenuManager mgr = (MenuManager) item;

				if (item.getId().equals("help"))

				{

					final IContributionItem contrib = mgr.remove("about");

					if (contrib instanceof ActionContributionItem) {

						final IAction about = ((ActionContributionItem) contrib)

								.getAction();

						mgr.add(new ActionContributionItem((IAction) Proxy

								.newProxyInstance(about.getClass()

										.getClassLoader(),

										new Class[] { IAction.class },

										new InvocationHandler() {

											public Object invoke(Object arg0, Method method, Object[] arg2) throws Throwable {

												if ("runWithEvent"

														.equals(method

																.getName())

														|| "run".equals(method

																.getName())) {

													new CustomAboutDialog(

															window.getShell())

															.open();

													return null;

												}

												return method.invoke(about,

														arg2);

																						}

										})));

					}

				}

			}

		}

	}

	public void initializeMenus() {

		PlatformUI.getWorkbench().addWindowListener(new IWindowListener() {

			public void windowActivated(IWorkbenchWindow window) {

			}

			public void windowClosed(IWorkbenchWindow window) {

			}

			public void windowDeactivated(IWorkbenchWindow window) {

			}

			public void windowOpened(IWorkbenchWindow window) {

				replaceAboutAction(window);

			}

		});

		Display.getDefault().asyncExec(new Runnable() {

			public void run() {

				replaceAboutAction(PlatformUI.getWorkbench().getActiveWorkbenchWindow());

			}

		});

	}

	public void earlyStartup() {

		initializeMenus();

	}

}