/**
 * {@inheritDoc}
 */
@Override
public int openEditor(Shell parent) {

  this.mDialog = new CheckedTreeSelectionDialog(parent,
          WorkbenchLabelProvider.getDecoratingWorkbenchLabelProvider(),
          new SourceFolderContentProvider());

  // initialize the dialog with the filter data
  initCheckedTreeSelectionDialog();

  // open the dialog
  int retCode = this.mDialog.open();

  // actualize the filter data
  if (Window.OK == retCode) {
    this.mFilterData = this.getFilterDataFromDialog();

    if (!mDialog.isRecursivelyExcludeSubTree()) {
      mFilterData.add(PackageFilter.RECURSE_OFF_MARKER);
    }
  }

  return retCode;
}
 

/**
 * Sole constructor.
 */
public N4JSProjectExplorerLabelProvider() {
	decorator = new N4JSProjectExplorerProblemsDecorator();
	workbenchLabelProvider = new WorkbenchLabelProvider();
	delegate = new DecoratingLabelProvider(workbenchLabelProvider, decorator);
	workingSetLabelProviderListener = new ILabelProviderListener() {

		@Override
		public void labelProviderChanged(final LabelProviderChangedEvent event) {
			final LabelProviderChangedEvent wrapperEvent = createWorkingSetWrapperEvent(event);
			if (null != wrapperEvent) {
				UIUtils.getDisplay().asyncExec(() -> fireLabelProviderChanged(wrapperEvent));
			}
		}

	};
	delegate.addListener(workingSetLabelProviderListener);
}
 

protected void chooseWorkspace ()
{
    final ElementTreeSelectionDialog dialog = new ElementTreeSelectionDialog ( getShell (), new WorkbenchLabelProvider (), new WorkbenchContentProvider () );
    dialog.setTitle ( "Select driver exporter configuration file" );
    dialog.setMessage ( "Choose a driver exporter file for the configuration" );
    dialog.setInput ( ResourcesPlugin.getWorkspace ().getRoot () );
    dialog.setComparator ( new ResourceComparator ( ResourceComparator.NAME ) );
    dialog.setAllowMultiple ( true );
    dialog.setDialogBoundsSettings ( getDialogBoundsSettings ( HiveTab.WORKSPACE_SELECTION_DIALOG ), Dialog.DIALOG_PERSISTSIZE );
    if ( dialog.open () == IDialogConstants.OK_ID )
    {
        final IResource resource = (IResource)dialog.getFirstResult ();
        if ( resource != null )
        {
            final String arg = resource.getFullPath ().toString ();
            final String fileLoc = VariablesPlugin.getDefault ().getStringVariableManager ().generateVariableExpression ( "workspace_loc", arg ); //$NON-NLS-1$
            this.fileText.setText ( fileLoc );
            makeDirty ();
        }
    }
}
 

protected IProject chooseXdsProject() {
    ElementListSelectionDialog dialog= new ElementListSelectionDialog(getShell(), WorkbenchLabelProvider.getDecoratingWorkbenchLabelProvider());
    dialog.setTitle(Messages.LauncherTabMain_ProjectSelection); 
    dialog.setMessage(Messages.LauncherTabMain_SelectXdsProject+':');

    dialog.setElements(ProjectUtils.getXdsProjects().toArray());

    IProject currentProject = getCurrentXdsProject();
    if (currentProject != null) {
        dialog.setInitialSelections(new Object[] { currentProject });
    }
    if (dialog.open() == Window.OK) {			
        return (IProject) dialog.getFirstResult();
    }		
    return null;		
}
 

/**
 * Create the import source selection widget. (Copied from
 * WizardResourceImportPage but instead always uses the internal
 * ResourceTreeAndListGroup to keep compatibility with Kepler)
 */
@Override
protected void createFileSelectionGroup(Composite parent) {

    // Just create with a dummy root.
    fSelectionGroup = new ResourceTreeAndListGroup(parent,
            new FileSystemElement("Dummy", null, true), //$NON-NLS-1$
            getFolderProvider(), new WorkbenchLabelProvider(),
            getFileProvider(), new WorkbenchLabelProvider(), SWT.NONE,
            DialogUtil.inRegularFontMode(parent));

    ICheckStateListener listener = event -> updateWidgetEnablements();

    WorkbenchViewerComparator comparator = new WorkbenchViewerComparator();
    fSelectionGroup.setTreeComparator(comparator);
    fSelectionGroup.setListComparator(comparator);
    fSelectionGroup.addCheckStateListener(listener);

}
 

@Override
protected CheckboxTreeViewer createTreeViewer(Composite parent) {
  int style = SWT.VIRTUAL | SWT.FULL_SELECTION | SWT.BORDER
      | SWT.H_SCROLL | SWT.V_SCROLL;
  CheckboxTreeViewer result = new CheckboxTreeViewer(parent, style);
  result.setLabelProvider(new WorkbenchLabelProvider());
  result.setContentProvider(new BaseWorkbenchContentProvider());
  result.setComparator(new NodeWrapperTreeSorter());

  result.addCheckStateListener(new ICheckStateListener() {
    @Override
    public void checkStateChanged(CheckStateChangedEvent event) {
      if (recursiveTreeSelect) {
        tree.setSubtreeChecked(event.getElement(), event.getChecked());
      }
    }
  });

  tree = result;
  return result;
}
 

/**
 * Open a dialog box asking the user to select an existing project under the
 * current workspace.
 *
 * @param parentShell
 * @param title 
 */
public static IResource selectFile(Shell parentShell, String title) {
  ElementTreeSelectionDialog dialog =
      new ElementTreeSelectionDialog(
          parentShell,
          new WorkbenchLabelProvider(),
          new WorkbenchContentProvider()
      );

  dialog.setInput(ResourcesPlugin.getWorkspace().getRoot());
  dialog.setTitle(title);
  dialog.setAllowMultiple(false);

  if(dialog.open() == ElementTreeSelectionDialog.OK) {
    return (IResource) dialog.getFirstResult();
  }
  return null;
}
 

/**
 * Constructs an instance of <code>ResourceTreeSelectionDialog</code>.
 * 
 * @param parent the parent shell for the dialog
 * @param title dialog title
 * @param message dialog message
 * @param rootResource resource that serves as the root of the tree. This
 *          resource's descendants are visible in the tree, but the root
 *          itself is not.
 * @param initialResource the initially-selected resource
 * @param visibleResourceTypes a set of {@link IResource} types that are
 *          visible in the tree (e.g.
 *          <code>IResource.FILE | IResource.FOLDER</code>)
 * @param acceptedResourceTypes a set of {@link IResource} types that can be
 *          selected
 * @param multiSelection whether or not to allow selection of multiple
 *          resources
 */
public ResourceTreeSelectionDialog(Shell parent, String title,
    String message, IContainer rootResource, IResource initialResource,
    int visibleResourceTypes, int acceptedResourceTypes,
    boolean multiSelection) {
  super(parent, new WorkbenchLabelProvider(), new WorkbenchContentProvider());

  setTitle(title);
  setMessage(message);
  setHelpAvailable(false);

  setInput(rootResource);
  if (initialResource != null) {
    setInitialSelection(initialResource);
  }
  setComparator(new ResourceComparator(ResourceComparator.NAME));
  setValidator(new ResourceFilter(acceptedResourceTypes, multiSelection));
  addFilter(new ResourceFilter(visibleResourceTypes));
}
 

protected TreeViewer createResourceSelectionTree(Composite composite, int types, int span) {
	TreeViewer tree = new TreeViewer(composite, SWT.H_SCROLL | SWT.V_SCROLL | SWT.BORDER);
	tree.setUseHashlookup(true);
	tree.setContentProvider(getResourceProvider(types));
	tree.setLabelProvider(
		new DecoratingLabelProvider(
			new WorkbenchLabelProvider(), 
			SVNUIPlugin.getPlugin().getWorkbench().getDecoratorManager().getLabelDecorator()));
	tree.setSorter(new ResourceSorter(ResourceSorter.NAME));
	
	GridData data = new GridData(GridData.FILL_BOTH | GridData.GRAB_VERTICAL);
	data.heightHint = LIST_HEIGHT_HINT;
	data.horizontalSpan = span;
	tree.getControl().setLayoutData(data);
	return tree;
}
 

/**
 * @param parent
 */
public ProjectListSelectionDialog(Shell parent) {
	super(parent, WorkbenchLabelProvider.getDecoratingWorkbenchLabelProvider());
	setTitle(Messages.ProjectSelectionDialog_Title);
	setMessage(Messages.ProjectSelectionDialog_Message);
	final List<Object> list = new ArrayList<Object>();
	try {
		ResourcesPlugin.getWorkspace().getRoot().accept(new IResourceProxyVisitor() {
			public boolean visit(IResourceProxy proxy) throws CoreException {
				if (proxy.getType() == IResource.ROOT) {
					return true;
				}
				if (proxy.isAccessible()) {
					list.add(proxy.requestResource());
				}
				return false;
			}
		}, 0);
	} catch (CoreException e) {
		IdeLog.logError(UIPlugin.getDefault(), e);
	}
	setElements(list.toArray());
}
 

/**
 * Creates the checkbox tree and list for selecting resources.
 * @param parent
 *            the parent control
 */
protected final void createResourcesGroup(Composite parent) {

	// create the input element, which has the root resource
	// as its only child
	List input = new ArrayList();
	IProject[] projects = ResourcesPlugin.getWorkspace().getRoot().getProjects();
	for (int i = 0; i < projects.length; i++) {
		if (projects[i].isOpen()) {
			input.add(projects[i]);
		}
	}

	this.resourceGroup = new ResourceTreeAndListGroup(parent, input, getResourceProvider(IResource.FOLDER
			| IResource.PROJECT), WorkbenchLabelProvider.getDecoratingWorkbenchLabelProvider(),
			getResourceProvider(IResource.FILE), WorkbenchLabelProvider.getDecoratingWorkbenchLabelProvider(),
			SWT.NONE, DialogUtil.inRegularFontMode(parent));

	ICheckStateListener listener = new ICheckStateListener() {
		public void checkStateChanged(CheckStateChangedEvent event) {
			updateWidgetEnablements();
		}
	};

	this.resourceGroup.addCheckStateListener(listener);
}
 

/**
 * Creates the checkbox tree and list for selecting resources.
 * @param parent
 *            the parent control
 */
protected final void createResourcesGroup(Composite parent) {

	// create the input element, which has the root resource
	// as its only child
	List input = new ArrayList();
	IProject[] projects = ResourcesPlugin.getWorkspace().getRoot().getProjects();
	for (int i = 0; i < projects.length; i++) {
		if (projects[i].isOpen()) {
			input.add(projects[i]);
		}
	}

	this.resourceGroup = new ResourceTreeAndListGroup(parent, input, getResourceProvider(IResource.FOLDER
			| IResource.PROJECT), WorkbenchLabelProvider.getDecoratingWorkbenchLabelProvider(),
			getResourceProvider(IResource.FILE), WorkbenchLabelProvider.getDecoratingWorkbenchLabelProvider(),
			SWT.NONE, DialogUtil.inRegularFontMode(parent));

	ICheckStateListener listener = new ICheckStateListener() {
		public void checkStateChanged(CheckStateChangedEvent event) {
			updateWidgetEnablements();
		}
	};

	this.resourceGroup.addCheckStateListener(listener);
}
 

protected IProject chooseProject() throws OperationCancellation {
	Shell shell = button.getShell();
	ElementListSelectionDialog dialog = new ElementListSelectionDialog(shell, new WorkbenchLabelProvider());
	dialog.setTitle(LangUIMessages.projectField_chooseProject_title);
	dialog.setMessage(LangUIMessages.projectField_chooseProject_message);

	try {
		final IProject[] projects = getDialogChooseElements(); 
		dialog.setElements(projects);
	} catch (CoreException ce) {
		EclipseCore.logStatus(ce);
	}
	
	final IProject project = getProject();
	if (project != null && project.isOpen()) {
		dialog.setInitialSelections(new Object[] { project });
	}
	
	if (dialog.open() == Window.OK) {
		return (IProject) dialog.getFirstResult();
	}
	throw new OperationCancellation();
}
 

/**
 * {@inheritDoc}
 */
@Override
public void run(IAction action) {

  IProject[] projects = CheckstyleUIPlugin.getWorkspace().getRoot().getProjects();
  List<IProject> filteredProjects = new ArrayList<>();
  for (int i = 0; i < projects.length; i++) {
    filteredProjects.add(projects[i]);
  }

  filteredProjects.removeAll(mSelectedProjects);

  ListDialog dialog = new ListDialog(mPart.getSite().getShell());
  dialog.setInput(filteredProjects);
  dialog.setContentProvider(new ArrayContentProvider());
  dialog.setLabelProvider(new WorkbenchLabelProvider());
  dialog.setMessage(Messages.ConfigureProjectFromBluePrintAction_msgSelectBlueprintProject);
  dialog.setTitle(Messages.ConfigureProjectFromBluePrintAction_titleSelectBlueprintProject);
  if (Window.OK == dialog.open()) {

    Object[] result = dialog.getResult();

    if (result.length > 0) {

      BulkConfigureJob job = new BulkConfigureJob((IProject) result[0], mSelectedProjects);
      job.schedule();
    }

  }
}
 

/**
 * @param parent
 *            Parent shell
 * @param createButton
 *            Show create button and dialog
 */
public WorkspaceElementSelectionDialog(Shell parent, boolean createButton) {
	super(parent, new WorkbenchLabelProvider(),
			new WorkbenchContentProvider());

	this.setHelpAvailable(false);
	this.hasCreateButton = createButton;

}
 

@Override
protected Control createDialogArea(Composite parent) {
	CustomElementSelectionForm form = new CustomElementSelectionForm(parent, SWT.FILL);
	form.setLayoutData(GridDataFactory.fillDefaults().grab(true, true).create());

	TreeViewer v = form.getTreeViewer();
	for (ViewerFilter filter : filters) {
		v.addFilter(filter);
	}
	this.treeViewer = v;

	WorkbenchContentProvider contentProvider = new WorkbenchContentProvider();
	ILabelProvider labelProvider = new WorkbenchLabelProvider();

	this.treeViewer.setContentProvider(contentProvider);
	this.treeViewer.setLabelProvider(labelProvider);

	this.treeViewer.setComparator(new ViewerComparator());

	this.treeViewer.setAutoExpandLevel(this.getAutoExpandLevel());

	form.setElementLabel(this.elementLabel);

	this.elementNameInput = form.getElementInput();

	form.getElementInput().addPropertyChangeListener(new PropertyChangeListener() {

		@Override
		public void propertyChange(PropertyChangeEvent evt) {
			if (evt.getPropertyName().equals(SuffixText.TEXT_PROPERTY) ||
					evt.getPropertyName().equals(SuffixText.SUFFIX_PROPERTY)) {
				validateElementInput();
				elementInputChanged();
			}

		}
	});
	return form;
}
 

public void createProjectSelection() {
	createSelectionButton();
	browseButton.addSelectionListener(widgetSelectedAdapter(e -> {
		ListSelectionDialog dialog = new ListSelectionDialog(browseButton.getShell(),
				ResourcesPlugin.getWorkspace().getRoot(), new BaseWorkbenchContentProvider(),
				new WorkbenchLabelProvider(), this.labelString);
		dialog.setTitle(Messages.LaunchUI_selection);
		int returnCode = dialog.open();
		Object[] results = dialog.getResult();
		if (returnCode == 0 && results.length > 0) {
			text.setText(((IProject) results[0]).getName());
			editListener.modifyText(null);
		}
	}));
}
 

@Override
protected Control createCustomArea(Composite parent) {
    final Composite container = new Composite(parent, parent.getStyle());
    container.setLayout(new GridLayout(1, false));
    container.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true, 1, 1));

    fileText = createFilePathComposite(container, defaultFileName);

    final TreeViewer containerTreeViewer = new TreeViewer(container, SWT.BORDER);
    Tree tree = containerTreeViewer.getTree();
    final GridData gdTable = new GridData(SWT.FILL, SWT.FILL, true, true, 1, 1);
    gdTable.minimumWidth = TABLE_MINIMUM_WIDTH;
    gdTable.minimumHeight = TABLE_MINIMUM_HEIGHT;
    tree.setLayoutData(gdTable);
    containerTreeViewer.setContentProvider(new WorkbenchContentProvider() {
        @Override
        public Object[] getChildren(Object element) {
            final List<Object> res = new ArrayList<>();
            for (Object obj : super.getChildren(element)) {
                if (obj instanceof IContainer
                    || (obj instanceof IFile && fileExtension.equals(((IFile) obj).getFileExtension()))) {
                    res.add(obj);
                }
            }
            return res.toArray();
        }
    });
    containerTreeViewer.setLabelProvider(new WorkbenchLabelProvider());
    containerTreeViewer.addSelectionChangedListener(new ContainerSelectionChangedListener());
    containerTreeViewer.setInput(ResourcesPlugin.getWorkspace().getRoot());
    if (defaultFileName != null && !defaultFileName.isEmpty()) {
        final IFile file = ResourcesPlugin.getWorkspace().getRoot().getFile(new Path(defaultFileName));
        containerTreeViewer.setSelection(new StructuredSelection(file));
    }

    return container;
}
 

public M2LabelProvider(ModulaSearchResultPage resultPage, ResourceRegistry resourceRegistry) {
    this.resultPage = resultPage;
    this.resourceRegistry = resourceRegistry;
    this.dlgFont = resultPage.getControl().getFont();
    fLabelProvider= new WorkbenchLabelProvider();
    positionStyler = new Styler() {
        @Override
        public void applyStyles(TextStyle textStyle) {
            textStyle.foreground = JFaceResources.getColorRegistry().get(JFacePreferences.QUALIFIER_COLOR);
            textStyle.font= getItalicFont(dlgFont);
        }
    };
}
 

public static ElementTreeSelectionDialog createFolderDialog(String initialFolder, final IProject project,
		final boolean showAllProjects, final boolean showFolder, Shell shell) {

	ILabelProvider lp = new WorkbenchLabelProvider();
	ITreeContentProvider cp = new WorkbenchContentProvider();
	FolderSelectionDialog dialog = new FolderSelectionDialog(shell, lp, cp);
	// dialog.setTitle(TypeScriptUIMessages.TernModuleOptionsPanel_selectPathDialogTitle);
	IContainer folder = StringUtils.isEmpty(initialFolder) ? project
			: (project != null ? project.getFolder(initialFolder)
					: ResourcesPlugin.getWorkspace().getRoot().getFolder(new Path(initialFolder)));
	if (folder != null && folder.exists()) {
		dialog.setInitialSelection(folder);
	}
	dialog.setInput(ResourcesPlugin.getWorkspace().getRoot());
	ViewerFilter filter = new ViewerFilter() {

		@Override
		public boolean select(Viewer viewer, Object parentElement, Object element) {
			if (element instanceof IProject) {
				if (showAllProjects)
					return true;
				IProject p = (IProject) element;
				return (p.equals(project));
			} else if (element instanceof IContainer) {
				IContainer container = (IContainer) element;
				if (showFolder && container.getType() == IResource.FOLDER) {
					return true;
				}
				return false;
			}
			return false;
		}
	};
	dialog.addFilter(filter);
	return dialog;
}
 

public TypeScriptSearchLabelProvider(AbstractTextSearchViewPage page, int orderFlag) {
	fLabelProvider= new WorkbenchLabelProvider();
	fOrder= orderFlag;
	fPage= page;
	fLineMatchImage= SearchPluginImages.get(SearchPluginImages.IMG_OBJ_TEXT_SEARCH_LINE);
	fMatchComparator= new Comparator() {
		public int compare(Object o1, Object o2) {
			return ((TypeScriptMatch) o1).getOriginalOffset() - ((TypeScriptMatch) o2).getOriginalOffset();
		}
	};
}
 

public WorkspaceResourceSelectionDialog(Shell parent, Mode mode) {
	super(parent, new WorkbenchLabelProvider(), new WorkbenchContentProvider());
	this.mode = mode;
	setValidator(new ISelectionStatusValidator() {
		public IStatus validate(Object[] selection) {
			if (selection.length > 0 && checkMode(selection[0])) {
				return new Status(IStatus.OK, TypeScriptUIPlugin.PLUGIN_ID, IStatus.OK, EMPTY_STRING, null);
			}
			return new Status(IStatus.ERROR, TypeScriptUIPlugin.PLUGIN_ID, IStatus.ERROR, EMPTY_STRING, null);
		}
	});
	setInput(ResourcesPlugin.getWorkspace().getRoot());
}
 

protected TableViewer createBlackListViewer(Composite group) {
	TableViewer result = new TableViewer(group, SWT.BORDER | SWT.MULTI | SWT.V_SCROLL);
	result.getTable().setLinesVisible(true);
	GridDataFactory.fillDefaults().grab(true, true).applyTo(result.getControl());
	result.setContentProvider(new ArrayContentProvider());
	result.setLabelProvider(new WorkbenchLabelProvider());
	values = blacklist.getValues(getActualProject());
	result.setInput(values);
	return result;
}
 

protected void addAddBtn(final Composite btnComposite) {
	Button add = new Button(btnComposite, SWT.FLAT);
	GridDataFactory.fillDefaults().grab(true, false).hint(100, SWT.DEFAULT).applyTo(add);
	add.setText("Add...");
	add.addSelectionListener(new SelectionAdapter() {
		@Override
		public void widgetSelected(SelectionEvent e) {
			super.widgetSelected(e);
			ElementTreeSelectionDialog dialog = new ElementTreeSelectionDialog(btnComposite.getShell(),
					new WorkbenchLabelProvider(), new BaseWorkbenchContentProvider());

			dialog.setValidator(new CheaderBlacklistSelectionStatusValidator());

			dialog.setTitle("Add blacklist item");
			dialog.setMessage("Select a blacklist item:");
			dialog.setInput(ResourcesPlugin.getWorkspace().getRoot());
			dialog.addFilter(new CHeaderViewerFilter(getActualProject()));

			if (!values.isEmpty())
				dialog.setInitialSelection(values.get(values.size() - 1));

			dialog.setDialogBoundsSettings(BuilderActivator.getDefault().getDialogSettings(),
					Dialog.DIALOG_PERSISTLOCATION);
			dialog.open();
			Object[] result = dialog.getResult();
			if (result != null) {
				for (Object selection : result) {
					if (selection instanceof IResource) {
						values.add((IResource) selection);
					}
				}
				blackListViewer.refresh();
			}
		}
	});

}
 

/**
 * Can be overridden to provide a customized tree viewer.
 * For example, the derived type {@link CheckNodeTreeView}
 * uses a {@code CheckboxTreeViewer}.
 */
protected TreeViewer createTreeViewer(Composite parent) {
  int style = SWT.VIRTUAL | SWT.FULL_SELECTION | SWT.BORDER
      | SWT.H_SCROLL | SWT.V_SCROLL;
  TreeViewer result = new TreeViewer(parent, style);
  result.setLabelProvider(new WorkbenchLabelProvider());
  result.setContentProvider(new BaseWorkbenchContentProvider());
  result.setComparator(SORTER);

  setupHierarchyMenu(result);

  return result;
}
 

protected DrillDownComposite setupContainerControl(Composite parent) {
  DrillDownComposite result = new DrillDownComposite(parent, SWT.BORDER);

  containerViewer = new TreeViewer(result, SWT.NONE);
  result.setChildTree(containerViewer);

  containerViewer.setContentProvider(new WorkbenchContentProvider());
  containerViewer.setLabelProvider(new WorkbenchLabelProvider());
  containerViewer.setComparator(new ViewerComparator());
  containerViewer.setUseHashlookup(true);
  containerViewer.setInput(prepareInput());
  return result;
}
 

private void addUnaddedResourcesArea(Composite composite) {
	
	// add a description label
	createWrappingLabel(composite, Policy.bind("ReleaseCommentDialog.unaddedResources")); //$NON-NLS-1$

	// add the selectable checkbox list
	listViewer = CheckboxTableViewer.newCheckList(composite, SWT.BORDER);
	GridData data = new GridData(GridData.FILL_BOTH);
	data.heightHint = SELECTION_HEIGHT_HINT;
	data.widthHint = WIDTH_HINT;
	listViewer.getTable().setLayoutData(data);

	// set the contents of the list
	listViewer.setLabelProvider(new WorkbenchLabelProvider() {
		protected String decorateText(String input, Object element) {
			if (element instanceof IResource)
				return ((IResource)element).getFullPath().toString();
			else
				return input;
		}
	});
	listViewer.setContentProvider(new WorkbenchContentProvider());
	listViewer.setInput(new AdaptableResourceList(unaddedResources));
	if (resourcesToAdd == null) {
		listViewer.setAllChecked(true);
	} else {
		listViewer.setCheckedElements(resourcesToAdd);
	}
	listViewer.addSelectionChangedListener(new ISelectionChangedListener() {
		public void selectionChanged(SelectionChangedEvent event) {
			resourcesToAdd = listViewer.getCheckedElements();
		}
	});
	
	addSelectionButtons(composite);
}
 

/**
 * Shows the UI to configure a JAR or ZIP archive located in the workspace.
 * The dialog returns the configured classpath entry path or <code>null</code> if the dialog has
 * been canceled. The dialog does not apply any changes.
 *
 * @param shell The parent shell for the dialog.
 * @param initialEntry The path of the initial archive entry
 * @param usedEntries An array of paths that are already on the classpath and therefore should not be
 * selected again.
 * @return Returns the configured JAR path or <code>null</code> if the dialog has
 * been canceled by the user.
 */
public static IPath configureJAREntry(Shell shell, IPath initialEntry, IPath[] usedEntries) {
	if (initialEntry == null || usedEntries == null) {
		throw new IllegalArgumentException();
	}

	Class<?>[] acceptedClasses= new Class[] { IFile.class };
	TypedElementSelectionValidator validator= new TypedElementSelectionValidator(acceptedClasses, false);

	ArrayList<IResource> usedJars= new ArrayList<IResource>(usedEntries.length);
	IWorkspaceRoot root= ResourcesPlugin.getWorkspace().getRoot();
	for (int i= 0; i < usedEntries.length; i++) {
		IPath curr= usedEntries[i];
		if (!curr.equals(initialEntry)) {
			IResource resource= root.findMember(usedEntries[i]);
			if (resource instanceof IFile) {
				usedJars.add(resource);
			}
		}
	}

	IResource existing= root.findMember(initialEntry);

	FilteredElementTreeSelectionDialog dialog= new FilteredElementTreeSelectionDialog(shell, new WorkbenchLabelProvider(), new WorkbenchContentProvider());
	dialog.setValidator(validator);
	dialog.setTitle(NewWizardMessages.BuildPathDialogAccess_JARArchiveDialog_edit_title);
	dialog.setMessage(NewWizardMessages.BuildPathDialogAccess_JARArchiveDialog_edit_description);
	dialog.setInitialFilter(ArchiveFileFilter.JARZIP_FILTER_STRING);
	dialog.addFilter(new ArchiveFileFilter(usedJars, true, true));
	dialog.setInput(root);
	dialog.setComparator(new ResourceComparator(ResourceComparator.NAME));
	dialog.setInitialSelection(existing);

	if (dialog.open() == Window.OK) {
		IResource element= (IResource) dialog.getFirstResult();
		return element.getFullPath();
	}
	return null;
}
 

/**
 * Shows the UI to select new JAR or ZIP archive entries located in the workspace.
 * The dialog returns the selected entries or <code>null</code> if the dialog has
 * been canceled. The dialog does not apply any changes.
 *
 * @param shell The parent shell for the dialog.
 * @param initialSelection The path of the element (container or archive) to initially select or <code>null</code> to not select an entry.
 * @param usedEntries An array of paths that are already on the classpath and therefore should not be
 * selected again.
 * @return Returns the new JAR paths or <code>null</code> if the dialog has
 * been canceled by the user.
 */
public static IPath[] chooseJAREntries(Shell shell, IPath initialSelection, IPath[] usedEntries) {
	if (usedEntries == null) {
		throw new IllegalArgumentException();
	}

	Class<?>[] acceptedClasses= new Class[] { IFile.class };
	TypedElementSelectionValidator validator= new TypedElementSelectionValidator(acceptedClasses, true);
	ArrayList<IResource> usedJars= new ArrayList<IResource>(usedEntries.length);
	IWorkspaceRoot root= ResourcesPlugin.getWorkspace().getRoot();
	for (int i= 0; i < usedEntries.length; i++) {
		IResource resource= root.findMember(usedEntries[i]);
		if (resource instanceof IFile) {
			usedJars.add(resource);
		}
	}
	IResource focus= initialSelection != null ? root.findMember(initialSelection) : null;

	FilteredElementTreeSelectionDialog dialog= new FilteredElementTreeSelectionDialog(shell, new WorkbenchLabelProvider(), new WorkbenchContentProvider());
	dialog.setHelpAvailable(false);
	dialog.setValidator(validator);
	dialog.setTitle(NewWizardMessages.BuildPathDialogAccess_JARArchiveDialog_new_title);
	dialog.setMessage(NewWizardMessages.BuildPathDialogAccess_JARArchiveDialog_new_description);
	dialog.setInitialFilter(ArchiveFileFilter.JARZIP_FILTER_STRING);
	dialog.addFilter(new ArchiveFileFilter(usedJars, true, true));
	dialog.setInput(root);
	dialog.setComparator(new ResourceComparator(ResourceComparator.NAME));
	dialog.setInitialSelection(focus);

	if (dialog.open() == Window.OK) {
		Object[] elements= dialog.getResult();
		IPath[] res= new IPath[elements.length];
		for (int i= 0; i < res.length; i++) {
			IResource elem= (IResource)elements[i];
			res[i]= elem.getFullPath();
		}
		return res;
	}
	return null;
}
 

private static IPath[] internalChooseFolderEntry(Shell shell, IPath initialSelection, IPath[] usedEntries, String title, String message) {
	Class<?>[] acceptedClasses= new Class[] { IProject.class, IFolder.class };

	ArrayList<IResource> usedContainers= new ArrayList<IResource>(usedEntries.length);
	IWorkspaceRoot root= ResourcesPlugin.getWorkspace().getRoot();
	for (int i= 0; i < usedEntries.length; i++) {
		IResource resource= root.findMember(usedEntries[i]);
		if (resource instanceof IContainer) {
			usedContainers.add(resource);
		}
	}

	IResource focus= initialSelection != null ? root.findMember(initialSelection) : null;
	Object[] used= usedContainers.toArray();

	MultipleFolderSelectionDialog dialog= new MultipleFolderSelectionDialog(shell, new WorkbenchLabelProvider(), new WorkbenchContentProvider());
	dialog.setExisting(used);
	dialog.setTitle(title);
	dialog.setMessage(message);
	dialog.setHelpAvailable(false);
	dialog.addFilter(new TypedViewerFilter(acceptedClasses, used));
	dialog.setInput(root);
	dialog.setInitialFocus(focus);

	if (dialog.open() == Window.OK) {
		Object[] elements= dialog.getResult();
		IPath[] res= new IPath[elements.length];
		for (int i= 0; i < res.length; i++) {
			IResource elem= (IResource) elements[i];
			res[i]= elem.getFullPath();
		}
		return res;
	}
	return null;
}