Example usage for org.eclipse.jface.viewers StructuredSelection EMPTY

List of usage examples for org.eclipse.jface.viewers StructuredSelection EMPTY

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In this page you can find the example usage for org.eclipse.jface.viewers StructuredSelection EMPTY.

Prototype

StructuredSelection EMPTY

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Document

The canonical empty selection.

Usage

From source file:eu.geclipse.workflow.ui.wizards.WorkflowNewDiagramFileWizard.java

License:Open Source License

/**
 * @generated NOT//w w w. j  av  a2 s  .c om
 */
public WorkflowNewDiagramFileWizard(URI domainModelURI, EObject diagramRoot,
        TransactionalEditingDomain editingDomain) {
    assert domainModelURI != null : "Domain model uri must be specified"; //$NON-NLS-1$
    assert diagramRoot != null : "Diagram root element must be specified"; //$NON-NLS-1$
    assert editingDomain != null : "Editing domain must be specified"; //$NON-NLS-1$
    this.myFileCreationPage = new WizardNewFileCreationPage(
            Messages.getString("WorkflowNewDiagramFileWizard_CreationPageName"), //$NON-NLS-1$
            StructuredSelection.EMPTY);
    this.myFileCreationPage.setTitle(Messages.getString("WorkflowNewDiagramFileWizard_CreationPageTitle")); //$NON-NLS-1$
    this.myFileCreationPage
            .setDescription(NLS.bind(Messages.getString("WorkflowNewDiagramFileWizard_CreationPageDescription"), //$NON-NLS-1$
                    WorkflowEditPart.MODEL_ID));
    IPath filePath;
    String fileName = domainModelURI.trimFileExtension().lastSegment();
    if (domainModelURI.isPlatformResource()) {
        filePath = new Path(domainModelURI.trimSegments(1).toPlatformString(true));
    } else if (domainModelURI.isFile()) {
        filePath = new Path(domainModelURI.trimSegments(1).toFileString());
    } else {
        // TODO : use some default path
        throw new IllegalArgumentException("Unsupported URI: " + domainModelURI); //$NON-NLS-1$
    }
    this.myFileCreationPage.setContainerFullPath(filePath);
    this.myFileCreationPage
            .setFileName(WorkflowDiagramEditorUtil.getUniqueFileName(filePath, fileName, "workflow")); //$NON-NLS-1$
    this.diagramRootElementSelectionPage = new DiagramRootElementSelectionPage(
            Messages.getString("WorkflowNewDiagramFileWizard_RootSelectionPageName")); //$NON-NLS-1$
    this.diagramRootElementSelectionPage
            .setTitle(Messages.getString("WorkflowNewDiagramFileWizard_RootSelectionPageTitle")); //$NON-NLS-1$
    this.diagramRootElementSelectionPage
            .setDescription(Messages.getString("WorkflowNewDiagramFileWizard_RootSelectionPageDescription")); //$NON-NLS-1$
    this.diagramRootElementSelectionPage.setModelElement(diagramRoot);
    this.myEditingDomain = editingDomain;
}

From source file:eu.indenica.iret.diagram.navigator.IretNavigatorLinkHelper.java

License:Apache License

/**
 * @generated//w  ww .j av a 2 s. c  om
 */
public IStructuredSelection findSelection(IEditorInput anInput) {
    IDiagramDocument document = IretDiagramEditorPlugin.getInstance().getDocumentProvider()
            .getDiagramDocument(anInput);
    if (document == null) {
        return StructuredSelection.EMPTY;
    }
    Diagram diagram = document.getDiagram();
    if (diagram == null || diagram.eResource() == null) {
        return StructuredSelection.EMPTY;
    }
    IFile file = WorkspaceSynchronizer.getFile(diagram.eResource());
    if (file != null) {
        IretNavigatorItem item = new IretNavigatorItem(diagram, file, false);
        return new StructuredSelection(item);
    }
    return StructuredSelection.EMPTY;
}

From source file:eu.indenica.iret.diagram.part.IretDiagramEditor.java

License:Apache License

/**
 * @generated/* w w  w  .  j av a  2 s.co m*/
 */
private ISelection getNavigatorSelection() {
    IDiagramDocument document = getDiagramDocument();
    if (document == null) {
        return StructuredSelection.EMPTY;
    }
    Diagram diagram = document.getDiagram();
    if (diagram == null || diagram.eResource() == null) {
        return StructuredSelection.EMPTY;
    }
    IFile file = WorkspaceSynchronizer.getFile(diagram.eResource());
    if (file != null) {
        IretNavigatorItem item = new IretNavigatorItem(diagram, file, false);
        return new StructuredSelection(item);
    }
    return StructuredSelection.EMPTY;
}

From source file:eu.indenica.iret.diagram.part.IretNewDiagramFileWizard.java

License:Apache License

/**
 * @generated//  w w w .j  a  v a2  s .c  o m
 */
public IretNewDiagramFileWizard(URI domainModelURI, EObject diagramRoot,
        TransactionalEditingDomain editingDomain) {
    assert domainModelURI != null : "Domain model uri must be specified"; //$NON-NLS-1$
    assert diagramRoot != null : "Doagram root element must be specified"; //$NON-NLS-1$
    assert editingDomain != null : "Editing domain must be specified"; //$NON-NLS-1$

    myFileCreationPage = new WizardNewFileCreationPage(Messages.IretNewDiagramFileWizard_CreationPageName,
            StructuredSelection.EMPTY);
    myFileCreationPage.setTitle(Messages.IretNewDiagramFileWizard_CreationPageTitle);
    myFileCreationPage.setDescription(
            NLS.bind(Messages.IretNewDiagramFileWizard_CreationPageDescription, GoalDiagramEditPart.MODEL_ID));
    IPath filePath;
    String fileName = URI.decode(domainModelURI.trimFileExtension().lastSegment());
    if (domainModelURI.isPlatformResource()) {
        filePath = new Path(domainModelURI.trimSegments(1).toPlatformString(true));
    } else if (domainModelURI.isFile()) {
        filePath = new Path(domainModelURI.trimSegments(1).toFileString());
    } else {
        // TODO : use some default path
        throw new IllegalArgumentException("Unsupported URI: " + domainModelURI); //$NON-NLS-1$
    }
    myFileCreationPage.setContainerFullPath(filePath);
    myFileCreationPage.setFileName(IretDiagramEditorUtil.getUniqueFileName(filePath, fileName, "iret_diagram")); //$NON-NLS-1$

    diagramRootElementSelectionPage = new DiagramRootElementSelectionPage(
            Messages.IretNewDiagramFileWizard_RootSelectionPageName);
    diagramRootElementSelectionPage.setTitle(Messages.IretNewDiagramFileWizard_RootSelectionPageTitle);
    diagramRootElementSelectionPage
            .setDescription(Messages.IretNewDiagramFileWizard_RootSelectionPageDescription);
    diagramRootElementSelectionPage.setModelElement(diagramRoot);

    myEditingDomain = editingDomain;
}

From source file:eu.numberfour.n4js.ui.handler.CreateNewN4JSElementInModuleHandler.java

License:Open Source License

@Override
public Object execute(ExecutionEvent event) throws ExecutionException {
    String wizardId = event.getParameter(WIZARD_ID_PARAMETER_ID);

    if (wizardId == null) {
        return null;
    }/*from ww  w .  ja va 2  s .  c o m*/

    boolean isNested = Boolean.parseBoolean(event.getParameter(NESTED_PARAMETER_ID));

    IStructuredSelection selection;

    // Try to get editor file
    IFile editorFile = getActiveEditorFile();

    if (null != editorFile) {
        selection = new StructuredSelection(editorFile);
    } else {
        // Try to get the selection from the project explorer tree view
        IResource resourceTreeFile = getActiveTreeResourceSelection(event);
        if (null != resourceTreeFile) {
            // If it's a tree selection set nested to false
            isNested = false;
            selection = new StructuredSelection(resourceTreeFile);
        } else {
            // If not selection can be retrieved, launch the wizard with an empty selection
            selection = StructuredSelection.EMPTY;
        }
    }

    openWizardForModule(wizardId, selection, isNested);

    return null;
}

From source file:ext.org.eclipse.jdt.internal.ui.browsing.JavaBrowsingPart.java

License:Open Source License

public void selectionChanged(IWorkbenchPart part, ISelection selection) {
    if (!needsToProcessSelectionChanged(part))
        return;/*from   w  w  w.  j a  v  a2s .c o m*/

    if (fToggleLinkingAction.isChecked() && (part instanceof IEditorPart)) {
        setSelectionFromEditor(part, selection);
        return;
    }

    // Set selection
    Object selectedElement = getSingleElementFromSelection(selection);

    if (selectedElement != null && (part == null || part.equals(fPreviousSelectionProvider))
            && selectedElement.equals(fPreviousSelectedElement))
        return;

    fPreviousSelectedElement = selectedElement;

    Object currentInput = getViewer().getInput();
    if (selectedElement != null && selectedElement.equals(currentInput)) {
        IJavaElement elementToSelect = findElementToSelect(selectedElement);
        if (elementToSelect != null
                && getTypeComparator().compare((IJavaElement) selectedElement, elementToSelect) < 0)
            setSelection(new StructuredSelection(elementToSelect), true);
        else if (elementToSelect == null && (this instanceof MembersView)) {
            setSelection(StructuredSelection.EMPTY, true);
            fPreviousSelectedElement = StructuredSelection.EMPTY;
        }
        fPreviousSelectionProvider = part;
        return;
    }

    // Clear input if needed
    if (part != fPreviousSelectionProvider && selectedElement != null && !selectedElement.equals(currentInput)
            && isInputResetBy(selectedElement, currentInput, part)) {
        if (!isAncestorOf(selectedElement, currentInput))
            setInput(null);
        fPreviousSelectionProvider = part;
        return;
    } else if (selection != null && selection.isEmpty() && !isInputResetBy(part)) {
        fPreviousSelectionProvider = part;
        return;
    } else if (selectedElement == null && part == fPreviousSelectionProvider) {
        setInput(null);
        fPreviousSelectionProvider = part;
        return;
    }
    fPreviousSelectionProvider = part;

    // Adjust input and set selection and
    adjustInputAndSetSelection(selectedElement);
}

From source file:ext.org.eclipse.jdt.internal.ui.browsing.JavaBrowsingPart.java

License:Open Source License

void adjustInputAndSetSelection(Object o) {
    if (!(o instanceof IJavaElement)) {
        if (o == null)
            setInput(null);/*from   w  ww. jav a 2s. c o m*/
        setSelection(StructuredSelection.EMPTY, true);
        return;
    }

    IJavaElement je = (IJavaElement) o;
    IJavaElement elementToSelect = findElementToSelect(je);
    IJavaElement newInput = findInputForJavaElement(je);
    IJavaElement oldInput = null;
    if (getInput() instanceof IJavaElement)
        oldInput = (IJavaElement) getInput();

    if (elementToSelect == null && !isValidInput(newInput) && (newInput == null && !isAncestorOf(je, oldInput)))
        // Clear input
        setInput(null);
    else if (mustSetNewInput(elementToSelect, oldInput, newInput)) {
        // Adjust input to selection
        setInput(newInput);
    }

    if (elementToSelect != null && elementToSelect.exists())
        setSelection(new StructuredSelection(elementToSelect), true);
    else
        setSelection(StructuredSelection.EMPTY, true);
}

From source file:ext.org.eclipse.jdt.internal.ui.browsing.PackageViewerWrapper.java

License:Open Source License

@Override
public void setSelection(ISelection selection, boolean reveal) {
    if (selection instanceof IStructuredSelection) {
        IStructuredSelection sel = (IStructuredSelection) selection;

        //try and give the two a common super class
        IContentProvider provider = getContentProvider();
        if (provider instanceof LogicalPackagesProvider) {
            LogicalPackagesProvider fprovider = (LogicalPackagesProvider) provider;

            Object object = sel.getFirstElement();
            if (object instanceof IPackageFragment) {
                IPackageFragment pkgFragment = (IPackageFragment) object;
                LogicalPackage logicalPkg = fprovider.findLogicalPackage(pkgFragment);
                if (logicalPkg != null)
                    object = logicalPkg;
                else
                    object = pkgFragment;
            }//from w w  w.  j ava 2  s. c  o m
            if (object != null)
                fViewer.setSelection(new StructuredSelection(object), reveal);
            else
                fViewer.setSelection(StructuredSelection.EMPTY, reveal);
        }
    } else
        fViewer.setSelection(selection, reveal);
}

From source file:ext.org.eclipse.jdt.internal.ui.callhierarchy.CallHierarchyUI.java

License:Open Source License

/**
 * Converts an ISelection (containing MethodWrapper instances) to an ISelection
 * with the MethodWrapper's replaced by their corresponding IMembers. If the selection
 * contains elements which are not MethodWrapper instances or not already IMember instances
 * they are discarded./*  w  w  w . j  av a2 s .c o  m*/
 * @param selection The selection to convert.
 * @return An ISelection containing IMember's in place of MethodWrapper instances.
 */
static ISelection convertSelection(ISelection selection) {
    if (selection.isEmpty()) {
        return selection;
    }

    if (selection instanceof IStructuredSelection) {
        IStructuredSelection structuredSelection = (IStructuredSelection) selection;
        List<IMember> javaElements = new ArrayList<IMember>();
        for (Iterator<?> iter = structuredSelection.iterator(); iter.hasNext();) {
            Object element = iter.next();
            if (element instanceof MethodWrapper) {
                IMember member = ((MethodWrapper) element).getMember();
                if (member != null) {
                    javaElements.add(member);
                }
            } else if (element instanceof IMember) {
                javaElements.add((IMember) element);
            } else if (element instanceof CallLocation) {
                IMember member = ((CallLocation) element).getMember();
                javaElements.add(member);
            }
        }
        return new StructuredSelection(javaElements);
    }
    return StructuredSelection.EMPTY;
}

From source file:ext.org.eclipse.jdt.internal.ui.callhierarchy.CallHierarchyViewPart.java

License:Open Source License

/**
 * Returns the current selection./*from  w  w  w .  j  a  v a 2 s  .com*/
 * @return selection
 */
protected ISelection getSelection() {
    StructuredViewer viewerInFocus = fSelectionProviderMediator.getViewerInFocus();
    if (viewerInFocus != null) {
        return viewerInFocus.getSelection();
    }
    return StructuredSelection.EMPTY;
}