Examples of org.eclipse.swt.widgets.Display.syncExec()

org.eclipse.swt.widgets.Display.syncExec()
Causes the run() method of the runnable to be invoked by the user-interface thread at the next reasonable opportunity. The thread which calls this method is suspended until the runnable completes. Specifying null as the runnable simply wakes the user-interface thread.
Note that at the time the runnable is invoked, widgets that have the receiver as their display may have been disposed. Therefore, it is necessary to check for this case inside the runnable before accessing the widget.
@param runnable code to run on the user-interface thread or null @exception SWTException
- ERROR_FAILED_EXEC - if an exception occurred when executing the runnable
- ERROR_DEVICE_DISPOSED - if the receiver has been disposed
@see #asyncExec

  public void stop() {
    if (!PlatformUI.isWorkbenchRunning())
      return;
    final IWorkbench workbench = PlatformUI.getWorkbench();
    final Display display = workbench.getDisplay();
    display.syncExec(new Runnable() {
      public void run() {
        if (!display.isDisposed())
          workbench.close();
      }
    });

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            final Set<FamixClass> classes = selectedPackage.getClasses();
            final String message = "You are about to open the source code of " + classes.size()
            + " files. Do you really want to continue?";
            final IWorkbench workbench = PlatformUI.getWorkbench();
            Display display = workbench.getDisplay();
            display.syncExec(new Runnable() {
                public void run() {
                    IWorkbenchWindow activeWorkbenchWindow = workbench.getActiveWorkbenchWindow();
                    Shell shell = activeWorkbenchWindow.getShell();
                    boolean confirmed = MessageDialog.openConfirm(shell, "Open Source Code", message);
                    if (confirmed) {

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                    }
                }
            } catch (final PartInitException e) {
                final IWorkbench workbench = PlatformUI.getWorkbench();
                Display display = workbench.getDisplay();
                display.syncExec(new Runnable() {
                    public void run() {
                        IWorkbenchWindow activeWorkbenchWindow = workbench.getActiveWorkbenchWindow();
                        IWorkbenchPage activePage = activeWorkbenchWindow.getActivePage();
                        DialogUtil.openError(activePage.getWorkbenchWindow().getShell(), WorkbenchMessages.Error, e
                                .getMessage(), e);

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        final IEditorPart[] result = new IEditorPart[1];
        final PartInitException[] exception = new PartInitException[1];
        final IWorkbench workbench = PlatformUI.getWorkbench();
        Display display = workbench.getDisplay();
        display.syncExec(new Runnable() {
            public void run() {
                IWorkbenchWindow activeWorkbenchWindow = workbench.getActiveWorkbenchWindow();
                IWorkbenchPage activePage = activeWorkbenchWindow.getActivePage();
                try {
                    IEditorPart openEditor = activePage.openEditor(input, COMPILATION_UNIT_EDITOR_ID);

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            // change selection
            final ISelection selection = new TextSelection(document, start - 1, end - start + 1);
            final IWorkbench workbench = PlatformUI.getWorkbench();
            Display display = workbench.getDisplay();
            display.syncExec(new Runnable() {
                public void run() {
                    selectionProvider.setSelection(selection);
                }
            });
        }

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                    fGraphPanel.getCommandController().executeCommand(command);
                } else {
                    final String message = "Unable add elements to the current graph!";
                    final IWorkbench workbench = PlatformUI.getWorkbench();
                    Display display = workbench.getDisplay();
                    display.syncExec(new Runnable() {
                        public void run() {
                            IWorkbenchWindow activeWorkbenchWindow = workbench.getActiveWorkbenchWindow();
                            Shell shell = activeWorkbenchWindow.getShell();
                            ErrorDialog.openError(shell, "Error", message, new Status(IStatus.ERROR, DAForJavaPlugin.PLUGIN_ID, 1, 
                                    "The selected elements don't belong to the currently visualized project.", null));

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        final Tracker tracker = new Tracker(display, SWT.NULL);
        tracker.setStippled(true);


        tracker.addListener(SWT.Move, new Listener() {
            public void handleEvent(final Event event) {
                display.syncExec(new Runnable() {
                    public void run() {
                      // Get the curslor location as a point
                        Point location = new Point(event.x, event.y);


                        // Select a drop target; use the global one by default

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  public void stop() {
    if (!PlatformUI.isWorkbenchRunning())
      return;
    final IWorkbench workbench = PlatformUI.getWorkbench();
    final Display display = workbench.getDisplay();
    display.syncExec(new Runnable() {
      public void run() {
        if (!display.isDisposed())
          workbench.close();
      }
    });

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      logger.warn("Stop called, but workbench was null");
      return;
    }
    final Display display = workbench.getDisplay();
    logger.debug("Stopping display in a seperate thread...");
    display.syncExec(new Runnable() {
      public void run() {
        if (!display.isDisposed()) {
          workbench.close();
          logger.debug("Workbench closed");
        } else {

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    final IWorkbench workbench = PlatformUI.getWorkbench();
    if (workbench == null) {
      return;
    }
    final Display display = workbench.getDisplay();
    display.syncExec(new Runnable() {
      public void run() {
        if (!display.isDisposed()) {
          workbench.close();
        }
      }

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