protected void handleAdd() {
    ElementListSelectionDialog dialog =
        new ElementListSelectionDialog(getShell(), new StyledBundleLabelProvider(false, false));

    try {
      dialog.setElements(getValidBundles());
    } catch (CoreException e) {
      dialog.setMessage(e.getMessage());
    }

    dialog.setTitle(PDEUIMessages.PluginSelectionDialog_title);
    dialog.setMessage(PDEUIMessages.PluginSelectionDialog_message);
    dialog.setMultipleSelection(true);
    if (dialog.open() == Window.OK) {

      Object[] models = dialog.getResult();
      ArrayList<NameVersionDescriptor> pluginsToAdd = new ArrayList<NameVersionDescriptor>();
      for (int i = 0; i < models.length; i++) {
        BundleInfo desc = ((BundleInfo) models[i]);
        pluginsToAdd.add(new NameVersionDescriptor(desc.getSymbolicName(), null));
      }
      Set<NameVersionDescriptor> allDependencies = new HashSet<NameVersionDescriptor>();
      allDependencies.addAll(pluginsToAdd);
      NameVersionDescriptor[] currentBundles = getTargetDefinition().getImplicitDependencies();
      if (currentBundles != null) {
        allDependencies.addAll(Arrays.asList(currentBundles));
      }
      getTargetDefinition()
          .setImplicitDependencies(
              allDependencies.toArray(new NameVersionDescriptor[allDependencies.size()]));
      fElementViewer.refresh();
      updateImpButtons();
    }
  }
  private void handleSetImportSelection(ArrayList<Object> newSelectionList) {
    if (newSelectionList.size() == 0) {
      handleRemoveAll();
      pageChanged();
      return;
    }
    TableItem[] items = fImportListViewer.getTable().getItems();
    Object[] oldSelection = new Object[items.length];
    for (int i = 0; i < items.length; i++) {
      oldSelection[i] = items[i].getData();
    }

    // remove items that were in the old selection, but are not in the new one
    List<Object> itemsToRemove = new ArrayList<>();
    for (int i = 0; i < oldSelection.length; i++) {
      if (newSelectionList.contains(oldSelection[i])) {
        newSelectionList.remove(oldSelection[i]);
      } else {
        itemsToRemove.add(oldSelection[i]);
      }
    }
    doRemove(itemsToRemove);

    // add items that were not in the old selection and are in the new one
    doAdd(newSelectionList);

    pageChanged();
  }
 private void handleExistingProjects() {
   ArrayList<Object> result = new ArrayList<>();
   for (int i = 0; i < fModels.length; i++) {
     String id = fModels[i].getPluginBase().getId();
     IProject project = (IProject) PDEPlugin.getWorkspace().getRoot().findMember(id);
     if (project != null && project.isOpen() && WorkspaceModelManager.isPluginProject(project)) {
       result.add(fModels[i]);
     }
   }
   handleSetImportSelection(result);
 }
  private void handleRemoveAll() {
    TableItem[] items = fImportListViewer.getTable().getItems();

    ArrayList<Object> data = new ArrayList<>();
    for (int i = 0; i < items.length; i++) {
      data.add(items[i].getData());
    }
    if (data.size() > 0) {
      doRemove(data);
      pageChanged(false, true);
    }
  }
  private void handleAddAll() {
    TableItem[] items = fAvailableListViewer.getTable().getItems();

    ArrayList<Object> data = new ArrayList<>();
    for (int i = 0; i < items.length; i++) {
      data.add(items[i].getData());
    }
    if (data.size() > 0) {
      doAdd(data);
      pageChanged(true, false);
    }
  }
 private void computeUnmigrated() {
   IPluginModelBase[] models = PluginRegistry.getWorkspaceModels();
   ArrayList<IPluginModelBase> modelArray = new ArrayList<IPluginModelBase>();
   try {
     for (int i = 0; i < models.length; i++) {
       if (models[i].getUnderlyingResource().getProject().hasNature(JavaCore.NATURE_ID))
         modelArray.add(models[i]);
     }
   } catch (CoreException e) {
     PDEPlugin.logException(e);
   }
   fUnmigrated = modelArray.toArray(new IPluginModelBase[modelArray.size()]);
 }
  private void handleAddRequiredPlugins() {
    TableItem[] items = fImportListViewer.getTable().getItems();
    if (items.length == 0) return;
    if (items.length == 1) {
      IPluginModelBase model = (IPluginModelBase) items[0].getData();
      if (model.getPluginBase().getId().equals("org.eclipse.core.boot")) { // $NON-NLS-1$
        return;
      }
    }

    ArrayList<IPluginModelBase> result = new ArrayList<>();
    for (int i = 0; i < items.length; i++) {
      addPluginAndDependencies(
          (IPluginModelBase) items[i].getData(), result, fAddFragmentsButton.getSelection());
    }
    ArrayList<Object> resultObject = new ArrayList<>(result.size());
    resultObject.addAll(result);
    handleSetImportSelection(resultObject);
  }
 private void handleAddWorkingSet() {
   IWorkingSetManager manager = PlatformUI.getWorkbench().getWorkingSetManager();
   IWorkingSetSelectionDialog dialog =
       manager.createWorkingSetSelectionDialog(PDEPlugin.getActiveWorkbenchShell(), true);
   if (dialog.open() == Window.OK) {
     IWorkingSet[] workingSets = dialog.getSelection();
     IProduct product = getProduct();
     IProductModelFactory factory = product.getModel().getFactory();
     ArrayList<IProductPlugin> pluginList = new ArrayList<IProductPlugin>();
     for (int i = 0; i < workingSets.length; i++) {
       IAdaptable[] elements = workingSets[i].getElements();
       for (int j = 0; j < elements.length; j++) {
         IPluginModelBase model = findModel(elements[j]);
         if (model != null) {
           IProductPlugin plugin = factory.createPlugin();
           IPluginBase base = model.getPluginBase();
           plugin.setId(base.getId());
           pluginList.add(plugin);
         }
       }
     }
     product.addPlugins(pluginList.toArray(new IProductPlugin[pluginList.size()]));
   }
 }
  public static void handleAddRequired(IProductPlugin[] plugins, boolean includeOptional) {
    if (plugins.length == 0) return;

    ArrayList<BundleDescription> list = new ArrayList<BundleDescription>(plugins.length);
    for (int i = 0; i < plugins.length; i++) {
      list.add(TargetPlatformHelper.getState().getBundle(plugins[i].getId(), null));
    }
    DependencyCalculator calculator = new DependencyCalculator(includeOptional);
    calculator.findDependencies(list.toArray());

    BundleDescription[] bundles = TargetPlatformHelper.getState().getBundles();
    for (int i = 0; i < bundles.length; i++) {
      HostSpecification host = bundles[i].getHost();
      if (host != null
          && !("org.eclipse.ui.workbench.compatibility"
              .equals(bundles[i].getSymbolicName())) // $NON-NLS-1$
          && calculator.containsPluginId(host.getName())) {
        calculator.findDependency(bundles[i]);
      }
    }

    Collection<?> dependencies = calculator.getBundleIDs();

    IProduct product = plugins[0].getProduct();
    IProductModelFactory factory = product.getModel().getFactory();
    IProductPlugin[] requiredPlugins = new IProductPlugin[dependencies.size()];
    int i = 0;
    Iterator<?> iter = dependencies.iterator();
    while (iter.hasNext()) {
      String id = iter.next().toString();
      IProductPlugin plugin = factory.createPlugin();
      plugin.setId(id);
      requiredPlugins[i++] = plugin;
    }
    product.addPlugins(requiredPlugins);
  }
  private void handleSwap() {
    TableItem[] aItems = fAvailableListViewer.getTable().getItems();
    TableItem[] iItems = fImportListViewer.getTable().getItems();

    ArrayList<Object> data = new ArrayList<>();
    for (int i = 0; i < iItems.length; i++) {
      data.add(iItems[i].getData());
    }
    if (data.size() > 0) {
      doRemove(data);
    }

    data.clear();
    for (int i = 0; i < aItems.length; i++) {
      data.add(aItems[i].getData());
    }
    if (data.size() > 0) {
      doAdd(data);
    }
    pageChanged();
  }