Example usage for org.eclipse.jface.viewers IStructuredSelection getFirstElement

List of usage examples for org.eclipse.jface.viewers IStructuredSelection getFirstElement

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Introduction

In this page you can find the example usage for org.eclipse.jface.viewers IStructuredSelection getFirstElement.

Prototype

public Object getFirstElement();

Source Link

Document

Returns the first element in this selection, or null if the selection is empty.

Usage

From source file:BitMobilePlugin.java

License:Open Source License

public static IResource extractSelection(ISelection sel) {
    if (!(sel instanceof IStructuredSelection))
        return null;
    IStructuredSelection ss = (IStructuredSelection) sel;
    Object element = ss.getFirstElement();
    if (element instanceof IResource)
        return (IResource) element;
    if (!(element instanceof IAdaptable))
        return null;
    IAdaptable adaptable = (IAdaptable) element;
    Object adapter = adaptable.getAdapter(IResource.class);
    return (IResource) adapter;
}

From source file:$packageName$.$sectionClassName$.java

License:Open Source License

@Override
public void setInput(IWorkbenchPart part, ISelection selection) {
    super.setInput(part, selection);
    if (selection instanceof IStructuredSelection) {
        IStructuredSelection ss = (IStructuredSelection) selection;
        Object element = ss.getFirstElement();
        $resourceClassName$ component = PluginUtil.adapt($resourceClassNameNoGeneric$.class, element);
        composite.setInput(component);/*from  w w w  . j  a va  2  s.c  o m*/
    }
}

From source file:ac.soton.eventb.atomicitydecomposition.generator.actions.GenerateAction.java

License:Open Source License

@Override
public void setEnabled(Object evaluationContext) {
    super.setEnabled(evaluationContext);
    enabled = false;/* www .j  a va2s. co m*/
    if (evaluationContext instanceof EvaluationContext) {
        EvaluationContext ec = (EvaluationContext) evaluationContext;
        Object editor = ec.getVariable("activeEditor");
        //Object editorID = ec.getVariable("activeEditorId");
        if (editor instanceof RoseEditor) {
            final RoseEditor roseEditor = (RoseEditor) editor;
            IStructuredSelection selection = (IStructuredSelection) roseEditor.getSelection();
            if (selection.getFirstElement() instanceof EventBElement) {
                EventBElement sourceElement = (EventBElement) selection.getFirstElement();
                for (AbstractExtension abs : sourceElement.getExtensions()) {
                    enabled |= GeneratorFactory.getFactory().canGenerate(abs.eClass());
                }

            }
        }
    }
}

From source file:ac.soton.eventb.atomicitydecomposition.generator.actions.GenerateAction.java

License:Open Source License

@Override
public Object execute(ExecutionEvent event) throws ExecutionException {

    IEditorPart editor = HandlerUtil.getActiveEditorChecked(event);
    if (editor instanceof RoseEditor) {
        final RoseEditor roseEditor = (RoseEditor) editor;
        IStructuredSelection selection = (IStructuredSelection) roseEditor.getSelection();
        if (selection.getFirstElement() instanceof EventBElement) {
            final EventBElement eventBElement = (EventBElement) selection.getFirstElement();

            ResourceSet resourceSet = eventBElement.eResource().getResourceSet();

            if (editor.isDirty())
                editor.doSave(new NullProgressMonitor());

            // first validate, then transform
            //   if (ValidateAction.validate(diagramDocumentEditor)){

            for (AbstractExtension abs : eventBElement.getExtensions()) {
                TransactionalEditingDomain editingDomain = TransactionalEditingDomain.Factory.INSTANCE
                        .createEditingDomain();

                AbstractExtension absExt;
                if (abs.eIsProxy()) {
                    absExt = (AbstractExtension) resourceSet.getEObject(EcoreUtil.getURI(abs), false);
                } else
                    absExt = abs;//from   w w w .jav  a  2s. c o m

                if (absExt instanceof FlowDiagram) {
                    //If there is no extension, set as being the name
                    if (absExt.getExtensionId() == null || absExt.getExtensionId().equals("")) {
                        absExt.setExtensionId(((FlowDiagram) absExt).getName());
                    }

                    final GenerateCommand generateCommand = new GenerateCommand(editingDomain, absExt);
                    if (generateCommand.canExecute()) {
                        // run with progress
                        ProgressMonitorDialog dialog = new ProgressMonitorDialog(
                                roseEditor.getSite().getShell());
                        try {
                            dialog.run(true, true, new IRunnableWithProgress() {
                                public void run(IProgressMonitor monitor) {
                                    monitor.beginTask(Messages.GENERATOR_MSG_05, IProgressMonitor.UNKNOWN);
                                    try {
                                        generateCommand.execute(monitor, roseEditor);
                                    } catch (ExecutionException e) {
                                        Activator.logError(Messages.GENERATOR_MSG_06, e);
                                    }
                                    monitor.done();
                                }
                            });
                        } catch (InvocationTargetException e) {
                            Activator.logError(Messages.GENERATOR_MSG_07, e);
                            return null;
                        } catch (InterruptedException e) {
                            Activator.logError(Messages.GENERATOR_MSG_08, e);
                            return null;
                        }
                        // error feedback
                        if (false == generateCommand.getCommandResult().getStatus().isOK())
                            MessageDialog.openError(editor.getSite().getShell(), Messages.GENERATOR_MSG_09,
                                    Messages.GENERATOR_MSG_10);
                    }
                }
            }
        }
    }
    return null;
}

From source file:ac.soton.eventb.classdiagrams.diagram.navigator.ClassdiagramsNavigatorLinkHelper.java

License:Open Source License

/**
 * @generated//  w w w.  j  a  va  2  s  . c o m
 */
public void activateEditor(IWorkbenchPage aPage, IStructuredSelection aSelection) {
    if (aSelection == null || aSelection.isEmpty()) {
        return;
    }
    if (false == aSelection.getFirstElement() instanceof ClassdiagramsAbstractNavigatorItem) {
        return;
    }

    ClassdiagramsAbstractNavigatorItem abstractNavigatorItem = (ClassdiagramsAbstractNavigatorItem) aSelection
            .getFirstElement();
    View navigatorView = null;
    if (abstractNavigatorItem instanceof ClassdiagramsNavigatorItem) {
        navigatorView = ((ClassdiagramsNavigatorItem) abstractNavigatorItem).getView();
    } else if (abstractNavigatorItem instanceof ClassdiagramsNavigatorGroup) {
        ClassdiagramsNavigatorGroup navigatorGroup = (ClassdiagramsNavigatorGroup) abstractNavigatorItem;
        if (navigatorGroup.getParent() instanceof ClassdiagramsNavigatorItem) {
            navigatorView = ((ClassdiagramsNavigatorItem) navigatorGroup.getParent()).getView();
        } else if (navigatorGroup.getParent() instanceof IAdaptable) {
            navigatorView = (View) ((IAdaptable) navigatorGroup.getParent()).getAdapter(View.class);
        }
    }
    if (navigatorView == null) {
        return;
    }
    IEditorInput editorInput = getEditorInput(navigatorView.getDiagram());
    IEditorPart editor = aPage.findEditor(editorInput);
    if (editor == null) {
        return;
    }
    aPage.bringToTop(editor);
    if (editor instanceof DiagramEditor) {
        DiagramEditor diagramEditor = (DiagramEditor) editor;
        ResourceSet diagramEditorResourceSet = diagramEditor.getEditingDomain().getResourceSet();
        EObject selectedView = diagramEditorResourceSet.getEObject(EcoreUtil.getURI(navigatorView), true);
        if (selectedView == null) {
            return;
        }
        GraphicalViewer graphicalViewer = (GraphicalViewer) diagramEditor.getAdapter(GraphicalViewer.class);
        EditPart selectedEditPart = (EditPart) graphicalViewer.getEditPartRegistry().get(selectedView);
        if (selectedEditPart != null) {
            graphicalViewer.select(selectedEditPart);
        }
    }
}

From source file:ac.soton.eventb.classdiagrams.diagram.part.ClassdiagramsDiagramUpdateCommand.java

License:Open Source License

/**
 * @generated//from   www .j  a v a  2 s  . c  om
 */
public Object execute(ExecutionEvent event) throws ExecutionException {
    ISelection selection = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getSelectionService()
            .getSelection();
    if (selection instanceof IStructuredSelection) {
        IStructuredSelection structuredSelection = (IStructuredSelection) selection;
        if (structuredSelection.size() != 1) {
            return null;
        }
        if (structuredSelection.getFirstElement() instanceof EditPart
                && ((EditPart) structuredSelection.getFirstElement()).getModel() instanceof View) {
            EObject modelElement = ((View) ((EditPart) structuredSelection.getFirstElement()).getModel())
                    .getElement();
            List editPolicies = CanonicalEditPolicy.getRegisteredEditPolicies(modelElement);
            for (Iterator it = editPolicies.iterator(); it.hasNext();) {
                CanonicalEditPolicy nextEditPolicy = (CanonicalEditPolicy) it.next();
                nextEditPolicy.refresh();
            }

        }
    }
    return null;
}

From source file:ac.soton.eventb.classdiagrams.diagram.part.ModelElementSelectionPage.java

License:Open Source License

/**
 * @generated//from  w w w .java 2 s.  co m
 */
protected void updateSelection(IStructuredSelection selection) {
    selectedModelElement = null;
    if (selection.size() == 1) {
        Object selectedElement = selection.getFirstElement();
        if (selectedElement instanceof IWrapperItemProvider) {
            selectedElement = ((IWrapperItemProvider) selectedElement).getValue();
        }
        if (selectedElement instanceof FeatureMap.Entry) {
            selectedElement = ((FeatureMap.Entry) selectedElement).getValue();
        }
        if (selectedElement instanceof EObject) {
            selectedModelElement = (EObject) selectedElement;
        }
    }
    setPageComplete(validatePage());
}

From source file:ac.soton.eventb.classdiagrams.diagram.sheet.custom.ConstraintsPropertySection.java

License:Open Source License

@Override
protected ISelection getEditorSelection(Object object) {
    DiagramEditor editor = (DiagramEditor) getPart();
    IStructuredSelection selection = (IStructuredSelection) editor.getDiagramGraphicalViewer().getSelection();
    if (selection != null && selection.size() == 1) {
        GraphicalEditPart selectedPart = (GraphicalEditPart) selection.getFirstElement();
        EditPart part = selectedPart.findEditPart(null, (EObject) object);
        if (part != null)
            return new StructuredSelection(part);
        if (selectedPart.getParent() != null) {
            part = ((GraphicalEditPart) selectedPart.getParent()).findEditPart(null, (EObject) object);
            if (part != null)
                return new StructuredSelection(part);
        }/*from  w w w .j  a v a2 s . c o  m*/
    }
    return null;
}

From source file:ac.soton.eventb.roseEditor.properties.ElementLabelProvider.java

License:Open Source License

/**
 * Determine if a multiple object selection has been passed to the label
 * provider. If the objects is a IStructuredSelection, see if all the
 * objects in the selection are the same and if so, we want to provide
 * labels for the common selected element.
 *
 * @param objects//  w  w w . j  a  va2s  .  c  o  m
 *            a single object or a IStructuredSelection.
 * @param multiple
 *            first element in the array is true if there is multiple
 *            unequal selected elements in a IStructuredSelection.
 * @return the object to get labels for.
 */
private Object getObject(final Object objects, final boolean multiple[]) {
    Assert.isNotNull(objects);
    Object object = null;
    if (objects instanceof IStructuredSelection) {
        IStructuredSelection selection = (IStructuredSelection) objects;
        object = selection.getFirstElement();
        if (selection.size() == 1) {
            // one element selected
            multiple[0] = false;
            return object;
        }
        // multiple elements selected
        multiple[0] = true;
        Class<?> firstClass = typeMapper.mapType(object);
        // determine if all the objects in the selection are the same type
        for (Object next : selection.toArray()) {
            //= i.next();
            Class<?> nextClass = typeMapper.mapType(next);
            if (!nextClass.equals(firstClass)) {
                // two elements not equal == multiple selected unequal
                multiple[0] = false;
                object = null;
                break;
            }
        }
    } else {
        multiple[0] = false;
        object = objects;
    }
    return object;
}

From source file:ac.soton.eventb.statemachines.diagram.navigator.StatemachinesNavigatorLinkHelper.java

License:Open Source License

/**
 * @generated//from w w w  . j  a va2s .  c o m
 */
public void activateEditor(IWorkbenchPage aPage, IStructuredSelection aSelection) {
    if (aSelection == null || aSelection.isEmpty()) {
        return;
    }
    if (false == aSelection.getFirstElement() instanceof StatemachinesAbstractNavigatorItem) {
        return;
    }

    StatemachinesAbstractNavigatorItem abstractNavigatorItem = (StatemachinesAbstractNavigatorItem) aSelection
            .getFirstElement();
    View navigatorView = null;
    if (abstractNavigatorItem instanceof StatemachinesNavigatorItem) {
        navigatorView = ((StatemachinesNavigatorItem) abstractNavigatorItem).getView();
    } else if (abstractNavigatorItem instanceof StatemachinesNavigatorGroup) {
        StatemachinesNavigatorGroup navigatorGroup = (StatemachinesNavigatorGroup) abstractNavigatorItem;
        if (navigatorGroup.getParent() instanceof StatemachinesNavigatorItem) {
            navigatorView = ((StatemachinesNavigatorItem) navigatorGroup.getParent()).getView();
        } else if (navigatorGroup.getParent() instanceof IAdaptable) {
            navigatorView = (View) ((IAdaptable) navigatorGroup.getParent()).getAdapter(View.class);
        }
    }
    if (navigatorView == null) {
        return;
    }
    IEditorInput editorInput = getEditorInput(navigatorView.getDiagram());
    IEditorPart editor = aPage.findEditor(editorInput);
    if (editor == null) {
        return;
    }
    aPage.bringToTop(editor);
    if (editor instanceof DiagramEditor) {
        DiagramEditor diagramEditor = (DiagramEditor) editor;
        ResourceSet diagramEditorResourceSet = diagramEditor.getEditingDomain().getResourceSet();
        EObject selectedView = diagramEditorResourceSet.getEObject(EcoreUtil.getURI(navigatorView), true);
        if (selectedView == null) {
            return;
        }
        GraphicalViewer graphicalViewer = (GraphicalViewer) diagramEditor.getAdapter(GraphicalViewer.class);
        EditPart selectedEditPart = (EditPart) graphicalViewer.getEditPartRegistry().get(selectedView);
        if (selectedEditPart != null) {
            graphicalViewer.select(selectedEditPart);
        }
    }
}