org.eclipse.xtext.ui.editor.XtextSourceViewer Java Examples

/**
 * @see https://bugs.eclipse.org/bugs/show_bug.cgi?id=354123
 */
@Test
public void testUndoRedo() throws Exception {
	pushKey('a', 0);
	Assert.assertEquals(1, events.size());
	Assert.assertEquals("fooa", getFirstExportedObjectInLastEventDelta()
			.getQualifiedName().getLastSegment());
	IUndoManager undoManager = ((XtextSourceViewer) editor.getInternalSourceViewer()).getUndoManager();
	undoManager.undo();
	syncUtil.yieldToQueuedDisplayJobs(new NullProgressMonitor());
	syncUtil.waitForReconciler(editor);
	Assert.assertEquals(2, events.size());
	Assert.assertNull(Iterables.getLast(events).getDeltas().get(0).getNew());
	undoManager.redo();
	syncUtil.yieldToQueuedDisplayJobs(new NullProgressMonitor());
	syncUtil.waitForReconciler(editor);
	Assert.assertEquals(3, events.size());
	Assert.assertEquals("fooa", getFirstExportedObjectInLastEventDelta()
			.getQualifiedName().getLastSegment());
	Iterables.getLast(events);
}
 

public void install(StyledTextXtextAdapter styledTextXtextAdapter,
		XtextSourceViewer sourceViewer) {
	this.styledTextXtextAdapter = styledTextXtextAdapter;
	fSourceViewer = sourceViewer;
	if (styledTextXtextAdapter != null) {
		fConfiguration = styledTextXtextAdapter
				.getXtextSourceViewerConfiguration();
		fPresentationReconciler = (XtextPresentationReconciler) fConfiguration
				.getPresentationReconciler(sourceViewer);
	} else {
		fConfiguration = null;
		fPresentationReconciler = null;
	}
	preferenceStore = getPreferenceStoreAccessor().getPreferenceStore();
	preferenceStore.addPropertyChangeListener(this);
	enable();
}
 

/**
 * Install this reconciler on the given editor and presenter.
 *
 * @param editor
 *          the editor
 * @param sourceViewer
 *          the source viewer
 * @param presenter
 *          the highlighting presenter
 */
@Override
public void install(final XtextEditor editor, final XtextSourceViewer sourceViewer, final HighlightingPresenter presenter) {
  synchronized (fReconcileLock) {
    cleanUpAfterReconciliation = false; // prevents a potentially already running reconciliation process to clean up after itself
  }
  this.presenter = presenter;
  this.editor = editor;
  this.sourceViewer = sourceViewer;
  if (oldCalculator != null || newCalculator != null) {
    if (editor == null) {
      ((IXtextDocument) sourceViewer.getDocument()).addModelListener(this);
    } else if (editor.getDocument() != null) {
      editor.getDocument().addModelListener(this);
    }

    sourceViewer.addTextInputListener(this);
  }
  refresh();
}
 

/**
 * @deprecated Inject an instance of {@link XtextDocumentUtil} instead and use {@code getXtextDocument(..)}
 * instead. This allows to override the lookup of documents.
 */
@Deprecated
public static IXtextDocument get(Object ctx) {
	if (ctx instanceof IXtextDocument)
		return (IXtextDocument) ctx;
	if (ctx instanceof ProjectionDocument)
		return get(((ProjectionDocument) ctx).getMasterDocument());
	if (ctx instanceof XtextSourceViewer)
		return ((XtextSourceViewer) ctx).getXtextDocument();
	if (ctx instanceof ITextViewer)
		return get(((ITextViewer) ctx).getDocument());
	if (ctx instanceof XtextEditor)
		return ((XtextEditor) ctx).getDocument();
	if (ctx instanceof IFile) {
		IWorkbenchPage activePage = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage();
		return get(activePage.findEditor(new FileEditorInput((IFile) ctx)));
	}
	return null;
}
 

protected ICompletionProposal[] computeQuickAssistProposals(XtextEditor editor, int offset) {
	IResourcesSetupUtil.waitForBuild();
	XtextSourceViewer sourceViewer = (XtextSourceViewer) editor.getInternalSourceViewer();
	QuickAssistAssistant quickAssistAssistant = (QuickAssistAssistant) sourceViewer.getQuickAssistAssistant();
	IQuickAssistProcessor quickAssistProcessor = quickAssistAssistant.getQuickAssistProcessor();
	ICompletionProposal[] quickAssistProposals = quickAssistProcessor
			.computeQuickAssistProposals(new TextInvocationContext(sourceViewer, offset, -1));
	return quickAssistProposals;
}
 

@Override
public XtextSourceViewer createSourceViewer(Composite parent, IVerticalRuler ruler,
		IOverviewRuler overviewRuler, boolean showsAnnotationOverview, int styles) {
	final SARLSourceViewer result = new SARLSourceViewer(parent, ruler, overviewRuler, showsAnnotationOverview, styles);
	try {
		final Field field = RichStringAwareSourceViewer.class.getDeclaredField("merger"); //$NON-NLS-1$
		field.setAccessible(true);
		field.set(result, this.merger);
	} catch (NoSuchFieldException | SecurityException | IllegalArgumentException | IllegalAccessException exception) {
		Exceptions.sneakyThrow(exception);
	}
	this.memberInjector.injectMembers(result);
	return result;
}
 

/**
 * Install this reconciler on the given editor and presenter.
 * 
 * @param editor
 *            the editor
 * @param sourceViewer
 *            the source viewer
 * @param presenter
 *            the highlighting presenter
 */
public void install(StyledTextXtextAdapter xtextStyledText, XtextSourceViewer sourceViewer,
		HighlightingPresenter presenter) {
	this.presenter = presenter;
	this.styledTextXtextAdapter = xtextStyledText;
	this.sourceViewer = sourceViewer;
	if (calculator != null) {
		if (styledTextXtextAdapter.getXtextDocument() != null)
			styledTextXtextAdapter.getXtextDocument().addModelListener(this);

		sourceViewer.addTextInputListener(this);
	}
	refresh();
}
 

protected XtextSourceViewer createXtextSourceViewer() {
	final XtextSourceViewer result = new XtextSourceViewerEx(getStyledText(),
			getPreferenceStoreAccess().getPreferenceStore());
	result.configure(getXtextSourceViewerConfiguration());
	result.setDocument(getXtextDocument(), new AnnotationModel());
	return result;
}
 

@Override
public XtextSourceViewer createSourceViewer(Composite parent, IVerticalRuler ruler,
		IOverviewRuler overviewRuler, boolean showsAnnotationOverview, int styles) {
	RichStringAwareSourceViewer result = new RichStringAwareSourceViewer(parent, ruler, overviewRuler, showsAnnotationOverview, styles);
	result.merger = merger;
	return result;
}
 

private ISourceViewer getSourceViewer(Shell shell,
		final IXtextDocument xtextDocument,
		XtextSourceViewerConfiguration configuration) {
	XtextSourceViewer.Factory factory = get(
			XtextSourceViewer.Factory.class);
	ISourceViewer sourceViewer = factory.createSourceViewer(shell, null,
			null, false, 0);
	sourceViewer.configure(configuration);
	sourceViewer.setDocument(xtextDocument);
	return sourceViewer;
}
 

protected ISourceViewer getSourceViewer(Shell shell, final IXtextDocument xtextDocument,
		XtextSourceViewerConfiguration configuration) {
	XtextSourceViewer.Factory factory = get(XtextSourceViewer.Factory.class);
	ISourceViewer sourceViewer = factory.createSourceViewer(shell, null, null, false, 0);
	sourceViewer.configure(configuration);
	sourceViewer.setDocument(xtextDocument);
	return sourceViewer;
}
 

@Override
public ICompletionProposal[] computeCompletionProposals(ITextViewer viewer, int offset) {
	if (viewer instanceof XtextSourceViewer) {
		IXtextDocument document = (IXtextDocument) viewer.getDocument();
		return document.priorityReadOnly(createCompletionProposalComputer(viewer, offset));
	}

	return new ICompletionProposal[0];
}
 

protected ISourceViewer getSourceViewer(Shell shell, final IXtextDocument xtextDocument,
		XtextSourceViewerConfiguration configuration) {
	XtextSourceViewer.Factory factory = get(XtextSourceViewer.Factory.class);
	ISourceViewer sourceViewer = factory.createSourceViewer(shell, null, null, false, 0);
	sourceViewer.configure(configuration);
	sourceViewer.setDocument(xtextDocument);
	return sourceViewer;
}
 

/**
 * Refreshes the highlighting.
 */
public void refresh() {
	if (oldCalculator != null || newCalculator != null) {
		new Job("calculating highlighting") {
			@Override
			protected IStatus run(IProgressMonitor monitor) {
				XtextSourceViewer mySourceViewer = sourceViewer;
				if (mySourceViewer != null) {
					IXtextDocument document = mySourceViewer.getXtextDocument();
					if (document != null) {
						document.tryReadOnly(new CancelableUnitOfWork<Void,XtextResource>() {
							@Override
							public java.lang.Void exec(XtextResource state, CancelIndicator cancelIndicator)
									throws Exception {
								beforeRefresh(state, cancelIndicator);
								modelChanged(state, cancelIndicator);
								return null;
							}
						});
					}
				}
				return Status.OK_STATUS;
			}
		}.schedule();
	} else {
		Display display = getDisplay();
		display.asyncExec(presenter.createSimpleUpdateRunnable());
	}
}
 

/**
 * @since 2.3
 */
public void install(XtextSourceViewerConfiguration configuration, XtextSourceViewer sourceViewer) {
	fSourceViewer= sourceViewer;
	fConfiguration= configuration;
	if(sourceViewer != null && configuration != null){
		fPresentationReconciler= (XtextPresentationReconciler) fConfiguration.getPresentationReconciler(sourceViewer);
	} else {
		fPresentationReconciler = null;
		fConfiguration = null;
	}
	preferenceStore = getPreferenceStoreAccessor().getPreferenceStore();
	preferenceStore.addPropertyChangeListener(this);
	enable();
}
 

@Override
public void install(XtextEditor editor, XtextSourceViewer sourceViewer) {
	fEditor= editor;
	if (fEditor != null) {
		install(editor.getXtextSourceViewerConfiguration(), sourceViewer) ;
	}
}
 

/**
 * @since 2.19
 */
public IXtextDocument getXtextDocument(ITextViewer viewer) {
	if (viewer instanceof XtextSourceViewer) {
		return ((XtextSourceViewer) viewer).getXtextDocument();
	}
	return getXtextDocument(viewer.getDocument());
}
 

@Override
public void propertyChange(PropertyChangeEvent event) {
	super.propertyChange(event);
	XtextEditor editor = myEditor;
	XtextSourceViewer sourceViewer = mySourceViewer;
	if (editor instanceof N4JSEditor && sourceViewer != null
			&& event.getProperty().contains(".syntaxColorer.tokenStyles")) {
		((N4JSEditor) editor).initializeViewerColors(sourceViewer);
		sourceViewer.invalidateTextPresentation();
	}
}
 

protected ICompletionProposal[] computeQuickAssistProposals(int offset) {
	XtextSourceViewer sourceViewer = getSourceViewer();
	XtextReconciler reconciler = (XtextReconciler) sourceViewer.getAdapter(IReconciler.class);
	IReconcilingStrategyExtension reconcilingStrategyExtension = (IReconcilingStrategyExtension) reconciler.getReconcilingStrategy("");
	reconcilingStrategyExtension.initialReconcile();
	QuickAssistAssistant quickAssistAssistant = (QuickAssistAssistant) sourceViewer.getQuickAssistAssistant();
	IQuickAssistProcessor quickAssistProcessor = quickAssistAssistant.getQuickAssistProcessor();
	ICompletionProposal[] quickAssistProposals = quickAssistProcessor
			.computeQuickAssistProposals(new TextInvocationContext(sourceViewer, offset, -1));
	return quickAssistProposals;
}
 

/**
 * Install this reconciler on the given editor and presenter.
 * 
 * @param editor
 *            the editor
 * @param sourceViewer
 *            the source viewer
 * @param presenter
 *            the highlighting presenter
 */
public void install(XtextEditor editor, XtextSourceViewer sourceViewer, HighlightingPresenter presenter) {
	this.presenter = presenter;
	this.editor = editor;
	this.sourceViewer = sourceViewer;
	if (oldCalculator != null || newCalculator != null) {
		if(editor == null){
			sourceViewer.getXtextDocument().addModelListener(this);
		} else if (editor.getDocument() != null)
			editor.getDocument().addModelListener(this);

		sourceViewer.addTextInputListener(this);
	}
	refresh();
}
 

public EmbeddedEditor(XtextDocument document, XtextSourceViewer viewer, XtextSourceViewerConfiguration configuration, IEditedResourceProvider resourceProvider, Runnable afterSetDocumet) {
	this.document = document;
	this.viewer = viewer;
	this.configuration = configuration;
	this.resourceProvider = resourceProvider;
	this.afterSetDocument = afterSetDocumet;
}
 

/** {@inheritDoc} */
@Override
public XtextSourceViewer createSourceViewer(final Composite parent, final IVerticalRuler ruler, final IOverviewRuler overviewRuler, final boolean showsAnnotationOverview, final int styles) {
  return new FixedXtextSourceViewer(parent, ruler, overviewRuler, showsAnnotationOverview, styles);
}
 

@Override
public void install(XtextEditor editor, XtextSourceViewer sourceViewer) {
	this.myEditor = editor;
	this.mySourceViewer = sourceViewer;
	super.install(editor, sourceViewer);
}
 

public Class<? extends XtextSourceViewer.Factory> bindXtextSourceViewer$Factory() {
	return SARLSourceViewer.Factory.class;
}
 

/**
 * @see org.eclipse.xtext.ui.editor.XtextSourceViewer.Factory#createSourceViewer(org.eclipse.swt.widgets.Composite,
 *      org.eclipse.jface.text.source.IVerticalRuler,
 *      org.eclipse.jface.text.source.IOverviewRuler, boolean, int)
 */
@Override
public XtextSourceViewer createSourceViewer(final Composite parent, final IVerticalRuler ruler,
		final IOverviewRuler overviewRuler, final boolean showsAnnotationOverview, final int styles) {
	return new GamaSourceViewer(parent, ruler, overviewRuler, showsAnnotationOverview, styles);
}
 

public Class<? extends XtextSourceViewer.Factory> bindSourceViewerFactory() {
	return GamaSourceViewerFactory.class;
}
 

protected XtextSourceViewer getXtextSourceviewer() {
	return this.sourceviewer;
}
 

protected XtextSourceViewer getSourceViewer() {
	XtextSourceViewer sourceViewer = (XtextSourceViewer) xtextEditor.getInternalSourceViewer();
	return sourceViewer;
}
 

public XtextSourceViewer getEditorViewer() {
	checkEditorHandleIsSet();
	return editorHandle.getViewer();
}
 

public XtextSourceViewer getViewer() {
	return this.viewer;
}