Java tutorial
/******************************************************************************* * Copyright (c) 2014, 2016 Red Hat Inc., and others * All rights reserved. This program and the accompanying materials * are made available under the terms of the Eclipse Public License v1.0 * which accompanies this distribution, and is available at * http://www.eclipse.org/legal/epl-v10.html * * Contributors: * Mickael Istria (Red Hat Inc.) - initial API and implementation * Snjezana Peco (Red Hat Inc.) * Lars Vogel <Lars.Vogel@vogella.com> * Rdiger Herrmann <ruediger.herrmann@gmx.de> ******************************************************************************/ package org.eclipse.ui.internal.wizards.datatransfer; import java.io.File; import java.lang.reflect.InvocationTargetException; import java.util.ArrayList; import java.util.Collection; import java.util.Collections; import java.util.HashSet; import java.util.List; import java.util.Map; import java.util.Set; import org.eclipse.core.resources.IProject; import org.eclipse.core.resources.ResourcesPlugin; import org.eclipse.core.runtime.Assert; import org.eclipse.core.runtime.IProgressMonitor; import org.eclipse.core.runtime.IStatus; import org.eclipse.core.runtime.Status; import org.eclipse.jface.dialogs.MessageDialog; import org.eclipse.jface.fieldassist.ControlDecoration; import org.eclipse.jface.fieldassist.FieldDecorationRegistry; import org.eclipse.jface.layout.GridLayoutFactory; import org.eclipse.jface.operation.IRunnableWithProgress; import org.eclipse.jface.viewers.CellLabelProvider; import org.eclipse.jface.viewers.CheckStateChangedEvent; import org.eclipse.jface.viewers.CheckboxTreeViewer; import org.eclipse.jface.viewers.ICheckStateListener; import org.eclipse.jface.viewers.ICheckStateProvider; import org.eclipse.jface.viewers.IColorProvider; import org.eclipse.jface.viewers.ITreeContentProvider; import org.eclipse.jface.viewers.TreeViewerColumn; import org.eclipse.jface.viewers.Viewer; import org.eclipse.jface.viewers.ViewerCell; import org.eclipse.jface.viewers.ViewerColumn; import org.eclipse.jface.viewers.ViewerComparator; import org.eclipse.jface.viewers.ViewerFilter; import org.eclipse.jface.wizard.IWizard; import org.eclipse.jface.wizard.WizardPage; import org.eclipse.osgi.util.NLS; import org.eclipse.swt.SWT; import org.eclipse.swt.events.ModifyEvent; import org.eclipse.swt.events.ModifyListener; import org.eclipse.swt.events.SelectionAdapter; import org.eclipse.swt.events.SelectionEvent; import org.eclipse.swt.graphics.Color; import org.eclipse.swt.graphics.Image; import org.eclipse.swt.graphics.Point; import org.eclipse.swt.layout.FillLayout; import org.eclipse.swt.layout.GridData; import org.eclipse.swt.layout.GridLayout; import org.eclipse.swt.widgets.Button; import org.eclipse.swt.widgets.Combo; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.DirectoryDialog; import org.eclipse.swt.widgets.Display; import org.eclipse.swt.widgets.FileDialog; import org.eclipse.swt.widgets.Group; import org.eclipse.swt.widgets.Label; import org.eclipse.swt.widgets.Link; import org.eclipse.ui.IWorkingSet; import org.eclipse.ui.dialogs.FilteredTree; import org.eclipse.ui.dialogs.PatternFilter; import org.eclipse.ui.dialogs.WorkingSetConfigurationBlock; import org.eclipse.ui.internal.ide.IDEWorkbenchPlugin; import org.eclipse.ui.statushandlers.StatusManager; import org.eclipse.ui.wizards.datatransfer.ProjectConfigurator; /** * This page of {@link SmartImportWizard} simply asks for what to import, and asks * user a basic choice of how to import (import raw, infer sub- projects...) * * @since 3.12 * */ public class SmartImportRootWizardPage extends WizardPage { static final String IMPORTED_SOURCES = SmartImportRootWizardPage.class.getName() + ".knownSources"; //$NON-NLS-1$ private File selection; private boolean detectNestedProjects = true; private boolean configureProjects = true; private Set<IWorkingSet> workingSets; private ControlDecoration rootDirectoryTextDecorator; private WorkingSetConfigurationBlock workingSetsBlock; private Combo rootDirectoryText; // Proposal part private CheckboxTreeViewer tree; private Set<File> alreadyExistingProjects; private Set<File> notAlreadyExistingProjects; private Label selectionSummary; protected Map<File, List<ProjectConfigurator>> potentialProjects = Collections.emptyMap(); private class FolderForProjectsLabelProvider extends CellLabelProvider implements IColorProvider { public String getText(Object o) { File file = (File) o; String label = file.getAbsolutePath(); File root = getWizard().getImportJob().getRoot(); if (label.startsWith(root.getAbsolutePath())) { if (root.getParentFile() != null) { label = label.substring(root.getParentFile().getAbsolutePath().length() + 1); } } return label; } @Override public Color getBackground(Object o) { return null; } @Override public Color getForeground(Object o) { if (alreadyExistingProjects.contains(o)) { return Display.getDefault().getSystemColor(SWT.COLOR_GRAY); } return null; } @Override public void update(ViewerCell cell) { cell.setText(getText(cell.getElement())); Color color = getForeground(cell.getElement()); if (color != null) { cell.setForeground(color); } } } private class ProjectConfiguratorLabelProvider extends CellLabelProvider implements IColorProvider { public String getText(Object o) { File file = (File) o; if (alreadyExistingProjects.contains(file)) { return DataTransferMessages.SmartImportProposals_alreadyImportedAsProject_title; } List<ProjectConfigurator> configurators = SmartImportRootWizardPage.this.potentialProjects.get(file); if (configurators.isEmpty()) { return ""; //$NON-NLS-1$ } return ProjectConfiguratorExtensionManager.getLabel(configurators.get(0)); } @Override public Color getBackground(Object o) { return null; } @Override public Color getForeground(Object o) { if (alreadyExistingProjects.contains(o)) { return Display.getDefault().getSystemColor(SWT.COLOR_GRAY); } return null; } @Override public void update(ViewerCell cell) { cell.setText(getText(cell.getElement())); Color color = getForeground(cell.getElement()); if (color != null) { cell.setForeground(color); } } } /** * Constructs a new instance of that page * * @param wizard * the container wizard (most likely an {@link SmartImportWizard} * @param initialSelection * initial selection (directory or archive) * @param initialWorkingSets * initial working sets */ public SmartImportRootWizardPage(SmartImportWizard wizard, File initialSelection, Set<IWorkingSet> initialWorkingSets) { super(SmartImportRootWizardPage.class.getName()); this.selection = initialSelection; this.workingSets = initialWorkingSets; if (this.workingSets == null) { this.workingSets = new HashSet<>(); } setWizard(wizard); } @Override public void setWizard(IWizard easymportWizard) { Assert.isTrue(easymportWizard instanceof SmartImportWizard); super.setWizard(easymportWizard); } @Override public SmartImportWizard getWizard() { return (SmartImportWizard) super.getWizard(); } @Override public void createControl(Composite parent) { setTitle(DataTransferMessages.SmartImportWizardPage_importProjectsInFolderTitle); setDescription(DataTransferMessages.SmartImportWizardPage_importProjectsInFolderDescription); initializeDialogUnits(parent); Composite res = new Composite(parent, SWT.NONE); res.setLayout(new GridLayout(4, false)); createInputSelectionOptions(res); Composite proposalParent = new Composite(res, SWT.NONE); proposalParent.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true, 4, 1)); proposalParent.setLayout(new FillLayout()); createProposalsGroup(proposalParent); createConfigurationOptions(res); Group workingSetsGroup = new Group(res, SWT.NONE); GridData layoutData = new GridData(SWT.FILL, SWT.FILL, true, false, 4, 1); layoutData.verticalIndent = 20; workingSetsGroup.setLayoutData(layoutData); workingSetsGroup.setLayout(new GridLayout(1, false)); workingSetsGroup.setText(DataTransferMessages.SmartImportWizardPage_workingSets); workingSetsBlock = new WorkingSetConfigurationBlock(getDialogSettings(), "org.eclipse.ui.resourceWorkingSetPage"); //$NON-NLS-1$ if (this.workingSets != null) { workingSetsBlock.setWorkingSets(this.workingSets.toArray(new IWorkingSet[this.workingSets.size()])); } workingSetsBlock.createContent(workingSetsGroup); if (this.selection != null) { rootDirectoryText.setText(this.selection.getAbsolutePath()); validatePage(); } setControl(res); } /** * @param res */ private void createInputSelectionOptions(Composite res) { Label rootDirectoryLabel = new Label(res, SWT.NONE); rootDirectoryLabel.setText(DataTransferMessages.SmartImportWizardPage_selectRootDirectory); rootDirectoryText = new Combo(res, SWT.BORDER); String[] knownSources = getWizard().getDialogSettings().getArray(IMPORTED_SOURCES); if (knownSources != null) { rootDirectoryText.setItems(knownSources); } GridData rootDirectoryTextLayoutData = new GridData(SWT.FILL, SWT.CENTER, true, false); rootDirectoryText.setLayoutData(rootDirectoryTextLayoutData); rootDirectoryText.addModifyListener(new ModifyListener() { @Override public void modifyText(ModifyEvent e) { SmartImportRootWizardPage.this.selection = new File(((Combo) e.widget).getText()); if (SmartImportWizard.isValidArchive(selection)) { if (SmartImportWizard.getExpandDirectory(selection).isDirectory()) { if (MessageDialog.openConfirm(getShell(), DataTransferMessages.SmartImportWizardPage_overwriteArchiveDirectory_title, NLS.bind( DataTransferMessages.SmartImportWizardPage_overwriteArchiveDirectory_message, SmartImportWizard.getExpandDirectory(selection)))) { expandSelectedArchive(); } } else { expandSelectedArchive(); } } refreshProposals(); } private void expandSelectedArchive() { try { getContainer().run(true, true, new IRunnableWithProgress() { @Override public void run(IProgressMonitor monitor) throws InvocationTargetException, InterruptedException { getWizard().expandArchive(selection, monitor); if (monitor.isCanceled()) { throw new InterruptedException(); } } }); } catch (Exception ex) { MessageDialog.openWarning(getShell(), DataTransferMessages.SmartImportWizardPage_incompleteExpand_title, NLS.bind(DataTransferMessages.SmartImportWizardPage_incompleteExpand_title, SmartImportWizard.getExpandDirectory(selection))); } } }); this.rootDirectoryTextDecorator = new ControlDecoration(rootDirectoryText, SWT.TOP | SWT.LEFT); Image errorImage = FieldDecorationRegistry.getDefault() .getFieldDecoration(FieldDecorationRegistry.DEC_ERROR).getImage(); rootDirectoryTextLayoutData.horizontalIndent += errorImage.getBounds().width; this.rootDirectoryTextDecorator.setImage(errorImage); this.rootDirectoryTextDecorator .setDescriptionText(DataTransferMessages.SmartImportWizardPage_incorrectRootDirectory); this.rootDirectoryTextDecorator.hide(); Button directoryButton = new Button(res, SWT.PUSH); directoryButton.setText(DataTransferMessages.SmartImportWizardPage_browse); setButtonLayoutData(directoryButton); directoryButton.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent e) { DirectoryDialog dialog = new DirectoryDialog(getShell()); dialog.setText(DataTransferMessages.SmartImportWizardPage_browseForFolder); dialog.setMessage(DataTransferMessages.SmartImportWizardPage_selectFolderOrArchiveToImport); if (rootDirectoryText.getText() != null) { File current = new File(rootDirectoryText.getText()); if (current.isDirectory()) { dialog.setFilterPath(current.getAbsolutePath()); } else if (current.isFile()) { dialog.setFilterPath(current.getParentFile().getAbsolutePath()); } } if (dialog.getFilterPath() == null) { dialog.setFilterPath( ResourcesPlugin.getWorkspace().getRoot().getLocation().toFile().toString()); } String directory = dialog.open(); if (directory != null) { rootDirectoryText.setText(directory); } } }); Button browseArchiveButton = new Button(res, SWT.PUSH); browseArchiveButton.setText(DataTransferMessages.SmartImportWizardPage_selectArchiveButton); setButtonLayoutData(browseArchiveButton); browseArchiveButton.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent e) { FileDialog dialog = new FileDialog(getShell()); dialog.setText(DataTransferMessages.SmartImportWizardPage_selectArchiveTitle); dialog.setFilterExtensions(new String[] { "*.zip;*.tar;*.tar.gz" }); //$NON-NLS-1$ dialog.setFilterNames( new String[] { DataTransferMessages.SmartImportWizardPage_allSupportedArchives }); if (rootDirectoryText.getText() != null) { File current = new File(rootDirectoryText.getText()); if (current.isDirectory()) { dialog.setFilterPath(current.getAbsolutePath()); } else if (current.isFile()) { dialog.setFilterPath(current.getParentFile().getAbsolutePath()); dialog.setFileName(current.getName()); } } if (dialog.getFilterPath() == null) { dialog.setFilterPath( ResourcesPlugin.getWorkspace().getRoot().getLocation().toFile().toString()); } String archive = dialog.open(); if (archive != null) { rootDirectoryText.setText(archive); } } }); } /** * Creates the UI elements for the import options */ private void createConfigurationOptions(Composite res) { Link showDetectorsLink = new Link(res, SWT.NONE); showDetectorsLink.setText(DataTransferMessages.SmartImportWizardPage_showAvailableDetectors); showDetectorsLink.setLayoutData(new GridData(SWT.LEFT, SWT.CENTER, false, false, 4, 1)); showDetectorsLink.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent e) { StringBuilder message = new StringBuilder(); message.append(DataTransferMessages.SmartImportWizardPage_availableDetectors_description); message.append('\n'); message.append('\n'); List<String> extensionsLabels = new ArrayList<>( ProjectConfiguratorExtensionManager.getAllExtensionLabels()); Collections.sort(extensionsLabels); for (String extensionLabel : extensionsLabels) { message.append("* "); //$NON-NLS-1$ message.append(extensionLabel); message.append('\n'); } MessageDialog.openInformation(getShell(), DataTransferMessages.SmartImportWizardPage_availableDetectors_title, message.toString()); } }); final Button detectNestedProjectsCheckbox = new Button(res, SWT.CHECK); detectNestedProjectsCheckbox.setText(DataTransferMessages.SmartImportWizardPage_detectNestedProjects); detectNestedProjectsCheckbox.setLayoutData(new GridData(SWT.LEFT, SWT.CENTER, false, false, 4, 1)); detectNestedProjectsCheckbox.setSelection(this.detectNestedProjects); detectNestedProjectsCheckbox.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent e) { SmartImportRootWizardPage.this.detectNestedProjects = detectNestedProjectsCheckbox.getSelection(); refreshProposals(); } }); final Button configureProjectsCheckbox = new Button(res, SWT.CHECK); configureProjectsCheckbox.setText(DataTransferMessages.SmartImportWizardPage_configureProjects); configureProjectsCheckbox.setLayoutData(new GridData(SWT.LEFT, SWT.CENTER, false, false, 4, 1)); configureProjectsCheckbox.setSelection(this.configureProjects); configureProjectsCheckbox.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent e) { SmartImportRootWizardPage.this.configureProjects = configureProjectsCheckbox.getSelection(); refreshProposals(); } }); } /** * @param res */ private void createProposalsGroup(Composite parent) { Composite res = new Composite(parent, SWT.NONE); GridLayoutFactory.fillDefaults().numColumns(2).applyTo(res); PatternFilter patternFilter = new PatternFilter(); patternFilter.setIncludeLeadingWildcard(true); FilteredTree filterTree = new FilteredTree(res, SWT.BORDER | SWT.CHECK, patternFilter, true) { @Override public CheckboxTreeViewer doCreateTreeViewer(Composite treeParent, int style) { return new CheckboxTreeViewer(treeParent, style); } }; tree = (CheckboxTreeViewer) filterTree.getViewer(); GridData treeGridData = new GridData(SWT.FILL, SWT.FILL, true, true); treeGridData.heightHint = 90; tree.getControl().setLayoutData(treeGridData); tree.setContentProvider(new ITreeContentProvider() { @Override public Object[] getElements(Object inputElement) { Map<File, ?> potentialProjects = (Map<File, ?>) inputElement; return potentialProjects.keySet().toArray(new File[potentialProjects.size()]); } @Override public Object[] getChildren(Object parentElement) { return null; } @Override public Object getParent(Object element) { return null; } @Override public boolean hasChildren(Object element) { return false; } }); tree.setComparator(new ViewerComparator() { @Override public int compare(Viewer v, Object o1, Object o2) { return ((File) o1).getAbsolutePath().compareTo(((File) o2).getAbsolutePath()); } }); tree.setCheckStateProvider(new ICheckStateProvider() { @Override public boolean isGrayed(Object element) { return false; } @Override public boolean isChecked(Object element) { return getWizard().getImportJob() == null || getWizard().getImportJob().getDirectoriesToImport() == null || getWizard().getImportJob().getDirectoriesToImport().contains(element); } }); tree.addCheckStateListener(new ICheckStateListener() { @Override public void checkStateChanged(CheckStateChangedEvent event) { if (SmartImportRootWizardPage.this.alreadyExistingProjects.contains(event.getElement())) { tree.setChecked(event.getElement(), false); } else { proposalsSelectionChanged(); } } }); tree.getTree().setHeaderVisible(true); ViewerColumn pathColumn = new TreeViewerColumn(tree, SWT.NONE); pathColumn.setLabelProvider(new FolderForProjectsLabelProvider()); tree.getTree().getColumn(0).setText(DataTransferMessages.SmartImportProposals_folder); tree.getTree().getColumn(0).setWidth(400); ViewerColumn projectTypeColumn = new TreeViewerColumn(tree, SWT.NONE); projectTypeColumn.setLabelProvider(new ProjectConfiguratorLabelProvider()); tree.getTree().getColumn(1).setText(DataTransferMessages.SmartImportProposals_importAs); tree.getTree().getColumn(1).setWidth(250); Composite selectionButtonsGroup = new Composite(res, SWT.NONE); GridLayoutFactory.fillDefaults().applyTo(selectionButtonsGroup); selectionButtonsGroup.setLayoutData(new GridData(SWT.FILL, SWT.FILL, false, true)); Button selectAllButton = new Button(selectionButtonsGroup, SWT.PUSH); setButtonLayoutData(selectAllButton); selectAllButton.setText(DataTransferMessages.DataTransfer_selectAll); selectAllButton.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent e) { tree.setCheckedElements(SmartImportRootWizardPage.this.notAlreadyExistingProjects.toArray()); proposalsSelectionChanged(); } }); Button deselectAllButton = new Button(selectionButtonsGroup, SWT.PUSH); setButtonLayoutData(deselectAllButton); deselectAllButton.setText(DataTransferMessages.DataTransfer_deselectAll); deselectAllButton.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent e) { tree.setCheckedElements(new Object[0]); proposalsSelectionChanged(); } }); selectionSummary = new Label(selectionButtonsGroup, SWT.NONE); selectionSummary.setLayoutData(new GridData(SWT.FILL, SWT.BOTTOM, true, true, 1, 1)); selectionSummary.setText(NLS.bind(DataTransferMessages.SmartImportProposals_selectionSummary, 0, 0)); Button hideProjectsAlreadyInWorkspace = new Button(selectionButtonsGroup, SWT.CHECK); hideProjectsAlreadyInWorkspace.setText(DataTransferMessages.SmartImportProposals_hideExistingProjects); hideProjectsAlreadyInWorkspace.addSelectionListener(new SelectionAdapter() { final ViewerFilter existingProjectsFilter = new ViewerFilter() { @Override public boolean select(Viewer viewer, Object parentElement, Object element) { return !alreadyExistingProjects.contains(element); } }; @Override public void widgetSelected(SelectionEvent e) { ViewerFilter[] currentFilters = tree.getFilters(); ViewerFilter[] newFilters = null; if (((Button) e.widget).getSelection()) { newFilters = new ViewerFilter[currentFilters.length + 1]; System.arraycopy(currentFilters, 0, newFilters, 0, currentFilters.length); newFilters[newFilters.length - 1] = existingProjectsFilter; } else { List<ViewerFilter> filters = new ArrayList<>( currentFilters.length > 0 ? currentFilters.length - 1 : 0); for (ViewerFilter filter : currentFilters) { if (filter != existingProjectsFilter) { filters.add(filter); } } newFilters = filters.toArray(new ViewerFilter[filters.size()]); } tree.setFilters(newFilters); } }); tree.setInput(Collections.emptyMap()); } protected void validatePage() { if (!isPageComplete()) { this.rootDirectoryTextDecorator.show(); setErrorMessage(this.rootDirectoryTextDecorator.getDescriptionText()); } else { this.rootDirectoryTextDecorator.hide(); setErrorMessage(null); } setPageComplete(isPageComplete()); } @Override public boolean isPageComplete() { return sourceIsValid() && getWizard().getImportJob() != null && tree.getCheckedElements().length > 0; } private boolean sourceIsValid() { return this.selection != null && (this.selection.isDirectory() || SmartImportWizard.isValidArchive(this.selection)); } /** * * @return The selected source of import (can be a directory or an archive) */ public File getSelectedRoot() { return this.selection; } /** * Sets the initial source to import. * * @param directoryOrArchive */ public void setInitialImportRoot(File directoryOrArchive) { this.selection = directoryOrArchive; this.rootDirectoryText.setText(directoryOrArchive.getAbsolutePath()); } /** * * @return The user selected working sets to assign to imported projects. */ public Set<IWorkingSet> getSelectedWorkingSets() { this.workingSets.clear(); // workingSetsBlock doesn't support listeners... Runnable workingSetsRetriever = new Runnable() { @Override public void run() { for (IWorkingSet workingSet : SmartImportRootWizardPage.this.workingSetsBlock .getSelectedWorkingSets()) { SmartImportRootWizardPage.this.workingSets.add(workingSet); } } }; if (Display.getCurrent() == null) { getContainer().getShell().getDisplay().syncExec(workingSetsRetriever); } else { workingSetsRetriever.run(); } return this.workingSets; } private void proposalsSelectionChanged() { if (getWizard().getImportJob() != null) { Map<File, Collection<?>> input = (Map<File, Collection<?>>) tree.getInput(); if (input.size() == 1 && input.values().iterator().next().isEmpty()) { getWizard().getImportJob().setDirectoriesToImport(null); getWizard().getImportJob().setExcludedDirectories(null); selectionSummary.setText(NLS.bind(DataTransferMessages.SmartImportProposals_selectionSummary, 0, tree.getCheckedElements().length)); } else { Object[] selected = tree.getCheckedElements(); Set<File> excludedDirectories = new HashSet(((Map<File, ?>) this.tree.getInput()).keySet()); Set<File> selectedProjects = new HashSet<>(); for (Object item : selected) { File directory = (File) item; excludedDirectories.remove(directory); selectedProjects.add(directory); } getWizard().getImportJob().setDirectoriesToImport(selectedProjects); getWizard().getImportJob().setExcludedDirectories(excludedDirectories); selectionSummary.setText(NLS.bind(DataTransferMessages.SmartImportProposals_selectionSummary, selectedProjects.size(), potentialProjects.size())); } } setPageComplete(isPageComplete()); } /** * @return whether the job should recurse to find nested projects */ public boolean isDetectNestedProject() { return this.detectNestedProjects; } /** * @return whether the job should configure projects (add natures etc...) */ public boolean isConfigureProjects() { return this.configureProjects; } private void refreshProposals() { try { if (sourceIsValid()) { Point initialSelection = rootDirectoryText.getSelection(); getContainer().run(true, true, new IRunnableWithProgress() { @Override public void run(IProgressMonitor monitor) { SmartImportRootWizardPage.this.potentialProjects = getWizard().getImportJob() .getImportProposals(monitor); if (!potentialProjects.containsKey(getWizard().getImportJob().getRoot())) { potentialProjects.put(getWizard().getImportJob().getRoot(), Collections.emptyList()); } SmartImportRootWizardPage.this.notAlreadyExistingProjects = new HashSet<>( potentialProjects.keySet()); SmartImportRootWizardPage.this.alreadyExistingProjects = new HashSet<>(); for (IProject project : ResourcesPlugin.getWorkspace().getRoot().getProjects()) { SmartImportRootWizardPage.this.notAlreadyExistingProjects .remove(project.getLocation().toFile()); SmartImportRootWizardPage.this.alreadyExistingProjects .add(project.getLocation().toFile()); } } }); // restore selection as getContainer().run(...) looses it rootDirectoryText.setSelection(initialSelection); } else { SmartImportRootWizardPage.this.potentialProjects = Collections.emptyMap(); SmartImportRootWizardPage.this.notAlreadyExistingProjects = Collections.emptySet(); SmartImportRootWizardPage.this.alreadyExistingProjects = Collections.emptySet(); } tree.setInput(potentialProjects); tree.setCheckedElements(this.notAlreadyExistingProjects.toArray()); } catch (InvocationTargetException ite) { this.selection = null; IStatus status = new Status(IStatus.ERROR, IDEWorkbenchPlugin.IDE_WORKBENCH, DataTransferMessages.SmartImportWizardPage_scanProjectsFailed, ite.getCause()); StatusManager.getManager().handle(status, StatusManager.LOG | StatusManager.SHOW); } catch (InterruptedException operationCanceled) { } proposalsSelectionChanged(); SmartImportRootWizardPage.this.validatePage(); } }