org.eclipse.ui.ide.IDE Java Examples

public IEditorPart openAndSelect(IWorkbenchPage wbPage, IFile file, int offset, int length, boolean activate) throws PartInitException {
	String editorId= null;
	IEditorDescriptor desc= IDE.getEditorDescriptor(file);
	if (desc == null || !desc.isInternal()) {
		editorId= "org.eclipse.ui.DefaultTextEditor"; //$NON-NLS-1$
	} else {
		editorId= desc.getId();
	}

	IEditorPart editor;
	if (NewSearchUI.reuseEditor()) {
		editor= showWithReuse(file, wbPage, editorId, activate);
	} else {
		editor= showWithoutReuse(file, wbPage, editorId, activate);
	}

	if (editor instanceof ITextEditor) {
		ITextEditor textEditor= (ITextEditor) editor;
		textEditor.selectAndReveal(offset, length);
	} else if (editor != null) {
		showWithMarker(editor, file, offset, length);
	}
	return editor;
}
 

/**
 * Edit analysis file(s) with built-in editor.
 */
private void editAnalysis() {
    Map<@NonNull String, @NonNull File> listFiles = XmlUtils.listFiles();
    for (TableItem item : fAnalysesTable.getSelection()) {
        String selection = XmlUtils.createXmlFileString(item.getText());
        @Nullable File file = listFiles.get(selection);
        if (file == null) {
            Activator.logError(NLS.bind(Messages.ManageXMLAnalysisDialog_FailedToEdit, selection));
            TraceUtils.displayErrorMsg(NLS.bind(Messages.ManageXMLAnalysisDialog_FailedToEdit, selection), NLS.bind(Messages.ManageXMLAnalysisDialog_FailedToEdit, selection));
            return;
        }
        try {
            IEditorPart editorPart = IDE.openEditorOnFileStore(PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage(), EFS.getStore(file.toURI()));
            // Remove listener first in case the editor was already opened
            editorPart.removePropertyListener(SAVE_EDITOR_LISTENER);
            editorPart.addPropertyListener(SAVE_EDITOR_LISTENER);
        } catch (CoreException e) {
            Activator.logError(NLS.bind(Messages.ManageXMLAnalysisDialog_FailedToEdit, selection));
            TraceUtils.displayErrorMsg(NLS.bind(Messages.ManageXMLAnalysisDialog_FailedToEdit, selection), e.getMessage());
        }
    }
}
 

@Test
public void testDTDFile() throws Exception {
	final IFile file = project.getFile("blah.dtd");
	file.create(new ByteArrayInputStream("FAIL".getBytes()), true, null);
	ITextEditor editor = (ITextEditor) IDE
			.openEditor(PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage(), file);
	editor.getDocumentProvider().getDocument(editor.getEditorInput()).set("<!--<!-- -->");
	assertTrue("Diagnostic not published", new DisplayHelper() {
		@Override
		protected boolean condition() {
			try {
				return file.findMarkers("org.eclipse.lsp4e.diagnostic", true, IResource.DEPTH_ZERO).length != 0;
			} catch (CoreException e) {
				return false;
			}
		}
	}.waitForCondition(PlatformUI.getWorkbench().getDisplay(), 5000));
}
 

public static IEditorPart openFileInFileSystem(final URI uri) throws PartInitException {
	if (uri == null) { return null; }
	IFileStore fileStore;
	try {
		fileStore = EFS.getLocalFileSystem().getStore(Path.fromOSString(uri.toFileString()));
	} catch (final Exception e1) {
		MessageDialog.openWarning(WorkbenchHelper.getShell(), "No file found",
				"The file'" + uri.toString() + "' cannot be found.");
		return null;
	}
	IFileInfo info;
	try {
		info = fileStore.fetchInfo();
	} catch (final Exception e) {
		MessageDialog.openWarning(WorkbenchHelper.getShell(), "No file found",
				"The file'" + uri.toString() + "' cannot be found.");
		return null;
	}
	if (!info.exists()) {
		MessageDialog.openWarning(WorkbenchHelper.getShell(), "No file found",
				"The file'" + uri.toString() + "' cannot be found.");
	}
	return IDE.openInternalEditorOnFileStore(PAGE, fileStore);
}
 

public void gotoLink(boolean activateEditor) {
    try {
        IWorkbenchPage page = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage();
        if (marker != null) {
            if (marker.exists()) {
                IDE.openEditor(page, marker, activateEditor);
            }
        } else {
        	// LSA80 : ������ �������? ����� � ������ �� ��������� ������ �� core-��� ������� �������, 
        	// ����� � ������� ����� ����������, �� ����� ��� ����������.
            page.showView("org.eclipse.ui.views.ProblemView", null, IWorkbenchPage.VIEW_ACTIVATE); 
        }
    }
    catch (Exception e) { // hz (NPE, PartInitException...)
        e.printStackTrace();
    }
}
 

/**
 * Validates the operation against the model providers.
 *
 * @return whether the operation should proceed
 */
private boolean validateClose() {
	final IResourceChangeDescriptionFactory factory = ResourceChangeValidator.getValidator().createDeltaFactory();
	final List<? extends IResource> resources = getActionResources();
	for (final IResource resource : resources) {
		if (resource instanceof IProject) {
			final IProject project = (IProject) resource;
			factory.close(project);
		}
	}
	String message;
	if (resources.size() == 1) {
		message = NLS.bind(IDEWorkbenchMessages.CloseResourceAction_warningForOne, resources.get(0).getName());
	} else {
		message = IDEWorkbenchMessages.CloseResourceAction_warningForMultiple;
	}
	return IDE.promptToConfirm(WorkbenchHelper.getShell(), IDEWorkbenchMessages.CloseResourceAction_confirm,
			message, factory.getDelta(), getModelProviderIds(), false /* no need to syncExec */);
}
 

private void openSingleFileAtLineNumber(final String relativeFilename, final int lineNumber) {
	final IPath path = new Path(relativeFilename).removeFirstSegments(1); // strip off project
	Display.getDefault().asyncExec(() -> {
		try {
			IFile file = project.getFile(path);
			IMarker marker = file.createMarker(IMarker.TEXT);
			marker.setAttribute(IMarker.LINE_NUMBER, lineNumber);
			IDE.openEditor(EclipseMessageUtils.getWorkbenchPage(), marker);
			EclipseMessageUtils.getWorkbenchPage().getWorkbenchWindow().getShell().forceActive();
		}
		catch (CoreException e) {
			EclipseMessageUtils.error("Error opening the file containing at line " + lineNumber,
				e);
		}
	});
}
 

public void initialize(IWorkbenchConfigurer configurer)
{
    // save the positions of windows etc...
    configurer.setSaveAndRestore(true);

    super.initialize(configurer);
    
    Bundle ideBundle = Platform.getBundle(IDE_PLUGIN);
    declareWorkbenchImage(configurer, ideBundle, IDE.SharedImages.IMG_OBJ_PROJECT, PRJ_OBJ,
            true);
    declareWorkbenchImage(configurer, ideBundle, IDE.SharedImages.IMG_OBJ_PROJECT_CLOSED, PRJ_OBJ_C, true);
    
    declareWorkbenchImage(configurer, ideBundle, IMG_DLGBAN_SAVEAS_DLG, SAVEAS_DLG, true);
    
    // register adapter
    IDE.registerAdapters();
}
 

public IEditorDescriptor findXbaseEditor(IEditorInput editorInput, boolean ignorePreference) {
	IFile file = ResourceUtil.getFile(editorInput);
	if (file == null)
		return null;
	if (!ignorePreference) {
		if (file.exists()) {
			try {
				String favoriteEditor = file.getPersistentProperty(IDE.EDITOR_KEY);
				if (favoriteEditor != null)
					return null;
			} catch (CoreException e) {
				logger.debug(e.getMessage(), e);
			}
		}
	}
	// TODO stay in same editor if local navigation
	Decision decision = decisions.decideAccordingToCaller();
	if (decision == Decision.FORCE_JAVA) {
		return null;
	}
	IEclipseTrace traceToSource = traceInformation.getTraceToSource(file);
	return getXtextEditor(traceToSource);
}
 

/**
 * Displays the given file in an editor using the Java perspective.  
 * If something goes wrong, this method has no effect. 
 * 
 * @param file The file to display.
 * @param workbench The workbench.
 */
public static void displayInEditor(IFile file, IWorkbench workbench) {
	new UIJob("Display in editor") {
		@Override
		public IStatus runInUIThread(IProgressMonitor m) {
			try {
				IWorkbenchWindow window = workbench.getActiveWorkbenchWindow();
				IDE.openEditor(window.getActivePage(), file);
				workbench.showPerspective("org.eclipse.jdt.ui.JavaPerspective", window);
				return Status.OK_STATUS;
			}
			catch (NullPointerException | WorkbenchException e) {
				return Status.CANCEL_STATUS;
			}
		}
	}.schedule();
}
 

@Test
public void testComplexXML() throws Exception {
	final IFile file = project.getFile("blah.xml");
	String content = "<layout:BlockLayoutCell\n" +
			"	xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\"	\n" +
			"    xsi:schemaLocation=\"sap.ui.layout https://openui5.hana.ondemand.com/downloads/schemas/sap.ui.layout.xsd\"\n" +
			"	xmlns:layout=\"sap.ui.layout\">\n" +
			"    |\n" +
			"</layout:BlockLayoutCell>";
	int offset = content.indexOf('|');
	content = content.replace("|", "");
	file.create(new ByteArrayInputStream(content.getBytes()), true, null);
	AbstractTextEditor editor = (AbstractTextEditor) IDE
			.openEditor(PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage(), file, "org.eclipse.ui.genericeditor.GenericEditor");
	editor.getSelectionProvider().setSelection(new TextSelection(offset, 0));
	LSContentAssistProcessor processor = new LSContentAssistProcessor();
	proposals = processor.computeCompletionProposals(Utils.getViewer(editor), offset);
	DisplayHelper.sleep(editor.getSite().getShell().getDisplay(), 2000);
	assertTrue(proposals.length > 1);
}
 

public void open()
{
	try
	{
		final IFileStore store = EFS.getStore(document);
		// Now open an editor to this file (and highlight the occurrence if possible)
		IWorkbenchPage page = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage();
		IEditorPart part = IDE.openEditorOnFileStore(page, store);
		// Now select the occurrence if we can
		IFindReplaceTarget target = (IFindReplaceTarget) part.getAdapter(IFindReplaceTarget.class);
		if (target != null && target.canPerformFind())
		{
			target.findAndSelect(0, searchString, true, caseSensitive, wholeWord);
		}
	}
	catch (Exception e)
	{
		IdeLog.logError(CommonEditorPlugin.getDefault(), e);
	}
}
 

@Test
public void testYAMLFile() throws Exception {
	final IFile file = project.getFile("blah.yaml");
	file.create(new ByteArrayInputStream("FAIL".getBytes()), true, null);
	ITextEditor editor = (ITextEditor) IDE
			.openEditor(PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage(), file);
	editor.getDocumentProvider().getDocument(editor.getEditorInput()).set("hello: '");
	assertTrue("Diagnostic not published", new DisplayHelper() {
		@Override
		protected boolean condition() {
			try {
				return file.findMarkers("org.eclipse.lsp4e.diagnostic", true, IResource.DEPTH_ZERO).length != 0;
			} catch (CoreException e) {
				return false;
			}
		}
	}.waitForCondition(PlatformUI.getWorkbench().getDisplay(), 5000));
}
 

@Test
public void testTMHighlightInGenericEditorEdit() throws IOException, PartInitException {
	f = File.createTempFile("test" + System.currentTimeMillis(), ".ts");
	FileOutputStream fileOutputStream = new FileOutputStream(f);
	fileOutputStream.write("let a = '';".getBytes());
	fileOutputStream.close();
	f.deleteOnExit();
	editor = IDE.openEditor(PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage(),
			f.toURI(), editorDescriptor.getId(), true);
	StyledText text = (StyledText)editor.getAdapter(Control.class);
	Assert.assertTrue(new DisplayHelper() {
		@Override
		protected boolean condition() {
			return text.getStyleRanges().length > 1;
		}
	}.waitForCondition(text.getDisplay(), 3000));
	int initialNumberOfRanges = text.getStyleRanges().length;
	text.setText("let a = '';\nlet b = 10;\nlet c = true;");
	Assert.assertTrue("More styles should have been added", new DisplayHelper() {
		@Override protected boolean condition() {
			return text.getStyleRanges().length > initialNumberOfRanges + 3;
		}
	}.waitForCondition(text.getDisplay(), 300000));
}
 

@Test
public void testTMHighlightInGenericEditor() throws IOException, PartInitException {
	f = File.createTempFile("test" + System.currentTimeMillis(), ".ts");
	FileOutputStream fileOutputStream = new FileOutputStream(f);
	fileOutputStream.write("let a = '';\nlet b = 10;\nlet c = true;".getBytes());
	fileOutputStream.close();
	f.deleteOnExit();
	editor = IDE.openEditor(PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage(),
			f.toURI(), editorDescriptor.getId(), true);
	StyledText text = (StyledText)editor.getAdapter(Control.class);
	Assert.assertTrue(new DisplayHelper() {
		@Override
		protected boolean condition() {
			return text.getStyleRanges().length > 1;
		}
	}.waitForCondition(text.getDisplay(), 3000));
}
 

@Test
public void testTSFile() throws Exception {
	final IFile file = project.getFile("blah.ts");
	file.create(new ByteArrayInputStream("ERROR".getBytes()), true, null);
	ITextEditor editor = (ITextEditor) IDE
			.openEditor(PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage(), file);
	editor.getDocumentProvider().getDocument(editor.getEditorInput()).set("FAIL");
	assertTrue("Diagnostic not published", new DisplayHelper() {
		@Override
		protected boolean condition() {
			try {
				return file.findMarkers("org.eclipse.lsp4e.diagnostic", true, IResource.DEPTH_ZERO).length != 0;
			} catch (CoreException e) {
				return false;
			}
		}
	}.waitForCondition(PlatformUI.getWorkbench().getDisplay(), 5000));
}
 

/**
 * open the file document which is refered to in the bibtex entry. The path
 * has to start from the root of the project where the bibtex entry is
 * included.
 */
private void openPdf() {
	IFile res = Utils.getIFilefromDocument(document);
	if (res == null || res.getProject() == null) {
		MessageDialog.openInformation(this.getSite().getShell(), "Bibtex" + document.getKey(), "Root or Resource not found");
		return;
	}
	IFile file = res.getProject().getFile(document.getFile());
	if (file.exists()) {
		IFileStore fileStore = EFS.getLocalFileSystem().getStore(file.getLocation());
		IWorkbenchPage page = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage();

		try {
			IDE.openEditorOnFileStore(page, fileStore);
		} catch (PartInitException e) {
			e.printStackTrace();
		}
	} else {
		MessageDialog.openInformation(this.getSite().getShell(), "Bibtex" + document.getKey(), "Document not found");
	}
}
 

@Override
public void initialize(final IWorkbenchConfigurer configurer) {

	ResourcesPlugin.getPlugin().getStateLocation();
	try {
		super.initialize(configurer);
		IDE.registerAdapters();
		configurer.setSaveAndRestore(true);

		final IDecoratorManager dm = configurer.getWorkbench().getDecoratorManager();
		dm.setEnabled("org.eclipse.pde.ui.binaryProjectDecorator", false);
		dm.setEnabled("org.eclipse.team.svn.ui.decorator.SVNLightweightDecorator", false);
		dm.setEnabled("msi.gama.application.decorator", true);
		dm.setEnabled("org.eclipse.ui.LinkedResourceDecorator", false);
		dm.setEnabled("org.eclipse.ui.VirtualResourceDecorator", false);
		dm.setEnabled("org.eclipse.xtext.builder.nature.overlay", false);
		if ( Display.getCurrent() != null ) {
			Display.getCurrent().getThread().setUncaughtExceptionHandler(GamaExecutorService.EXCEPTION_HANDLER);
		}
	} catch (final CoreException e) {
		// e.printStackTrace();
	}
	PluginActionBuilder.setAllowIdeLogging(false);
}
 

@Test
public void systemDefaultEditorColorTest() throws IOException, PartInitException {
	f = File.createTempFile("test" + System.currentTimeMillis(), ".ts");

	editor = IDE.openEditor(PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage(), f.toURI(),
			editorDescriptor.getId(), true);

	StyledText styledText = (StyledText) editor.getAdapter(Control.class);

	String themeId = manager.getDefaultTheme().getId();
	ITheme theme = manager.getThemeById(themeId);
	assertEquals("Default light theme isn't set", themeId, SolarizedLight);
	assertEquals("Background colors isn't equals", theme.getEditorBackground(), styledText.getBackground());
	assertEquals("Foreground colors isn't equals", theme.getEditorForeground(), styledText.getForeground());
	assertNull("System default selection background should be null", theme.getEditorSelectionBackground());
	assertNull("System default selection foreground should be null", theme.getEditorSelectionForeground());

	Color lineHighlight = ColorManager.getInstance()
			.getPreferenceEditorColor(EDITOR_CURRENTLINE_HIGHLIGHT);
	assertNotNull("Highlight shouldn't be a null", theme.getEditorCurrentLineHighlight());
	assertNotEquals("Default Line highlight should be from TM theme", lineHighlight,
			theme.getEditorCurrentLineHighlight());

}
 

private IAction[] createActions() {

		ISharedImages sharedImages = PlatformUI.getWorkbench()
				.getSharedImages();

		projectsAction = new TopLevelContentAction(false);
		projectsAction
				.setText(WorkbenchNavigatorMessages.actions_WorkingSetRootModeActionGroup_Project_);
		projectsAction.setImageDescriptor(sharedImages
				.getImageDescriptor(IDE.SharedImages.IMG_OBJ_PROJECT));

		workingSetsAction = new TopLevelContentAction(true);
		workingSetsAction
				.setText(WorkbenchNavigatorMessages.actions_WorkingSetRootModeActionGroup_Working_Set_);
		workingSetsAction.setImageDescriptor(WorkbenchNavigatorPlugin
				.getDefault().getImageRegistry().getDescriptor(
						"full/obj16/workingsets.gif")); //$NON-NLS-1$

		return new IAction[] { projectsAction, workingSetsAction };
	}
 

/** Opens given file in a editor with given ID within given workbench page. Returns opened editor on null. */
public static IEditorPart openFileEditor(final IFile file, final IWorkbenchPage page, String editorId) {
	checkNotNull(file, "Provided file was null.");
	checkNotNull(page, "Provided page was null.");
	checkNotNull(editorId, "Provided editor ID was null.");

	AtomicReference<IEditorPart> refFileEditor = new AtomicReference<>();

	UIUtils.getDisplay().syncExec(new Runnable() {

		@Override
		public void run() {
			try {
				refFileEditor.set(IDE.openEditor(page, file, editorId, true));
			} catch (PartInitException e) {
				e.printStackTrace();
			}
		}
	});
	return refFileEditor.get();
}
 

@Test
public void testLSFindsDiagnosticsCSProj() throws Exception  {
	IProject project = getProject("csprojWithError");
	IFile csharpSourceFile = project.getFile("Program.cs");
	IEditorPart editor = IDE.openEditor(PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage(), csharpSourceFile);
	SourceViewer viewer = (SourceViewer)getTextViewer(editor);
	workaroundOmniSharpIssue1088(viewer.getDocument());
	new DisplayHelper() {
		@Override
		protected boolean condition() {
			try {
				return csharpSourceFile.findMarkers(IMarker.PROBLEM, true, IResource.DEPTH_ZERO).length > 0;
			} catch (Exception e) {
				return false;
			}
		}
	}.waitForCondition(Display.getDefault(), 5000);
	DisplayHelper.sleep(500); // time to fill marker details
	IMarker marker = csharpSourceFile.findMarkers(IMarker.PROBLEM, true, IResource.DEPTH_ZERO)[0];
	assertTrue(marker.getType().contains("lsp4e"));
	assertEquals(12, marker.getAttribute(IMarker.LINE_NUMBER, -1));
}
 

@Override
public Image getImage(Object element) {
	if (element instanceof JavadocLinkRef) {
		JavadocLinkRef ref= (JavadocLinkRef) element;
		ImageDescriptor desc;
		if (ref.isProjectRef()) {
			desc= PlatformUI.getWorkbench().getSharedImages().getImageDescriptor(IDE.SharedImages.IMG_OBJ_PROJECT);
		} else {
			desc= JavaUI.getSharedImages().getImageDescriptor(ISharedImages.IMG_OBJS_JAR);
		}
		if (ref.getURL() == null) {
			return JavaPlugin.getImageDescriptorRegistry().get(new JavaElementImageDescriptor(desc, JavaElementImageDescriptor.WARNING, JavaElementImageProvider.SMALL_SIZE));
		}
		return JavaPlugin.getImageDescriptorRegistry().get(desc);
	}
	return null;
}
 

/**
 * {@inheritDoc}
 */
@Override
public boolean performFinish() {
	try {
		String database = this.page2.getDatabase();

		this.page1.createERDiagram(database);

		IFile file = this.page1.createNewFile();

		if (file == null) {
			return false;
		}

		IWorkbenchPage page = this.workbench.getActiveWorkbenchWindow()
				.getActivePage();

		IDE.openEditor(page, file, true);

	} catch (Exception e) {
		Activator.showExceptionDialog(e);
	}

	return true;
}
 

/**
 * Validates the copy or move operation.
 *
 * @param resources
 *            the resources being copied or moved
 * @param destinationPath
 *            the destination of the copy or move
 * @return whether the operation should proceed
 * @since 3.2
 */
private boolean validateOperation(IResource[] resources, IPath destinationPath) {
    IResourceChangeDescriptionFactory factory = ResourceChangeValidator.getValidator().createDeltaFactory();
    for (int i = 0; i < resources.length; i++) {
        IResource resource = resources[i];
        if (isMove()) {
            factory.move(resource, destinationPath.append(resource.getName()));
        } else {
            factory.copy(resource, destinationPath.append(resource.getName()));
        }
    }
    String title;
    String message;
    if (isMove()) {
        title = IDEWorkbenchMessages.CopyFilesAndFoldersOperation_confirmMove;
        message = IDEWorkbenchMessages.CopyFilesAndFoldersOperation_warningMove;
    } else {
        title = IDEWorkbenchMessages.CopyFilesAndFoldersOperation_confirmCopy;
        message = IDEWorkbenchMessages.CopyFilesAndFoldersOperation_warningCopy;
    }
    return IDE
            .promptToConfirm(messageShell, title, message, factory.getDelta(), modelProviderIds,
                    true /* syncExec */);
}
 

@Override
public IEditorPart open(final URI uri, final EReference crossReference, final int indexInList, final boolean select) {
	Iterator<Pair<IStorage, IProject>> storages = mapper.getStorages(uri.trimFragment()).iterator();
	if (storages != null && storages.hasNext()) {
		try {
			IStorage storage = storages.next().getFirst();
			IEditorInput editorInput = EditorUtils.createEditorInput(storage);
			IWorkbenchPage activePage = workbench.getActiveWorkbenchWindow().getActivePage();
			final IEditorPart editor = IDE.openEditor(activePage, editorInput, getEditorId());
			selectAndReveal(editor, uri, crossReference, indexInList, select);
			return EditorUtils.getXtextEditor(editor);
		} catch (WrappedException e) {
			logger.error("Error while opening editor part for EMF URI '" + uri + "'", e.getCause());
		} catch (PartInitException partInitException) {
			logger.error("Error while opening editor part for EMF URI '" + uri + "'", partInitException);
		}
	}
	return null;
}
 

@Test
public void testLSWorks() throws IOException, CoreException {
	IProject project = getProject(BASIC_ERRORS_PROJECT_NAME);
	IWorkbenchPage activePage = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage();
	IEditorPart editor = null;
	// This is a workaround, since the test is failing occasionally.
	// The RLS may not be fully initialized without this timeout.
	try {
		Thread.sleep(200);
	} catch (InterruptedException e1) {
		e1.printStackTrace();
	}
	IFile file = project.getFolder("src").getFile("main.rs");
	editor = IDE.openEditor(activePage, file);
	Display display = editor.getEditorSite().getShell().getDisplay();
	DisplayHelper.waitForCondition(display, 30000, () -> {
		try {
			return file.findMarkers(IMarker.PROBLEM, true, IResource.DEPTH_ZERO)[0]
					.getAttribute(IMarker.LINE_NUMBER, -1) == 3;
		} catch (Exception e) {
			return false;
		}
	});
	IMarker[] markers = file.findMarkers(IMarker.PROBLEM, true, IResource.DEPTH_ZERO);
	boolean markerFound = false;
	for (IMarker marker : markers) {
		assertTrue(marker.getType().contains("lsp4e"));
		int lineNumber = marker.getAttribute(IMarker.LINE_NUMBER, -1);
		if (lineNumber == 3) {
			markerFound = true;
		}
	}
	assertTrue("No error marker found at line 3.", markerFound);
}
 

/**
 * This was copied from {@link org.eclipse.jdt.internal.debug.ui.JDIModelPresentation.getEditorId(IEditorInput, Object)}.
 * <p>
 * Use {@link IDE#getEditorDescriptor(String)} rather than sending a static String; this'll open the editior
 * attached to the file instead of always Python editor (which expect Python code).
 *
 * @see <a href="http://git.eclipse.org/c/jdt/eclipse.jdt.debug.git/tree/org.eclipse.jdt.debug.ui/ui/org/eclipse/jdt/internal/debug/ui/JDIModelPresentation.java#n1216">JDIModelPresentation</a>
 */
@Override
public String getEditorId(final IEditorInput input, final Object element) {
    try {
        return IDE.getEditorDescriptor(input.getName(), true, false).getId();
    } catch (@SuppressWarnings("unused") PartInitException | OperationCanceledException ignored) {
        return null;
    }
}
 

private void openSingleFile(IASTFileLocation location, String functionName) {
	String pathToFix = location.getFileName();
	String projectName = project.getName();
	int index = pathToFix.indexOf(projectName);
	if (index == -1) {
		EclipseMessageUtils.error("Error opening the file containing " + pathToFix);
		return;
	}
	String relativePath = pathToFix.substring(index);
	final IPath path = new Path(relativePath).removeFirstSegments(1); // strip off project name
	final int offset = location.getNodeOffset();
	final int length = location.getNodeLength();
	final String fName = functionName;
	Display.getDefault().asyncExec(() -> {
		try {
			IFile file = project.getFile(path);
			IMarker marker = file.createMarker(IMarker.TEXT);
			marker.setAttribute(IMarker.CHAR_START, offset);
			marker.setAttribute(IMarker.CHAR_END, offset + length);
			IDE.openEditor(EclipseMessageUtils.getWorkbenchPage(), marker);
			symbolMap.put(fName, marker);
			EclipseMessageUtils.getWorkbenchPage().getWorkbenchWindow().getShell().forceActive();
		}
		catch (CoreException e) {
			EclipseMessageUtils.error("Error opening the file containing " + fName, e);
		}
	});
}
 

public void openModelFiles(IProject project) {
	List<IFile> filesToOpen = Lists.newArrayList();
	addStatecharts(project, filesToOpen);

	if (filesToOpen == null || getPage() == null) {
		return;
	}
	Display.getDefault().asyncExec(() -> {
		try {
			for (IFile file : filesToOpen) {
				IDE.openEditor(getPage(), file, false);
			}

			if (online()) {
				String browserid = "org.eclipse.ui.browser.editor";
				String baseURL = "https://itemis.com/en/yakindu/state-machine/documentation/examples/example/";
				URL url = new URL((baseURL + project.getName().replace(".", "-")));
				final IWebBrowser browser = PlatformUI.getWorkbench().getBrowserSupport().createBrowser(browserid);
				browser.openURL(url);
			} else {
				openExampleReadme(project);
			}
		} catch (PartInitException | MalformedURLException e) {
			e.printStackTrace();
			return;
		}
	});
}