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

        //
        // An alternate (and better) solution would be to use a better
        // implementation (wrapper?) of IDocument, which supports multithreaded
        // access.
        //
        display.syncExec(new Runnable() {
            public void run()
            {
                source.parse();


                if (outlinePage != null) outlinePage.updateContent(source);

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            d = Display.getDefault();
            d.asyncExec(r);
        }
        else
        {
            d.syncExec(r);
        }
    }


    private IOSGiInstall addInstall(String id, IPath path)
    {

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    public static void syncExec(final Runnable runnable) {
        if (Display.getCurrent() == null) {
            final Display display = PlatformUI.getWorkbench().getDisplay();
            if (display != null && !display.isDisposed()) {
                display.syncExec(runnable);
            }
        } else {
            runnable.run();
        }
    }

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            }
        };
        final Display display = Display.getDefault();
        // have to execute in UI thread only
        if (display.getThread() != Thread.currentThread()) {
            display.syncExec(runnable);
        } else {
            runnable.run();
        }
    }

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            ErrorDialog.openError(textEditor.getSite().getShell(),
                    ActionMessages.IndentAction_error_message, "Internal error", status);
            return;
        }
        final Display display = textEditor.getEditorSite().getShell().getDisplay();
        display.syncExec(new Runnable() {
            @Override
            public void run() {
                final IRewriteTarget target = (IRewriteTarget) textEditor
                        .getAdapter(IRewriteTarget.class);
                if (target != null) {

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            ErrorDialog.openError(textEditor.getSite().getShell(),
                    ActionMessages.IndentAction_error_message, "Internal error", status);
            return;
        }
        final Display display = textEditor.getEditorSite().getShell().getDisplay();
        display.syncExec(new Runnable() {
            @Override
            public void run() {
                final ITextOperationTarget target1 = (ITextOperationTarget) textEditor
                        .getAdapter(ITextOperationTarget.class);
                if (target1 instanceof ITextViewer) {

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    } else {
      display = shell.getDisplay();
    }


    final Image[] image = new Image[1];
    display.syncExec(new Runnable() {
      public void run() {
        image[0] = display.getSystemImage(imageID);
      }
    });

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  }


  @BeforeClass
  public static void beforeClass() {
    final Display dis = PlatformUI.getWorkbench().getDisplay();
    dis.syncExec(new Runnable() {
      @Override
      public void run() {
        shell = new Shell(dis);
      }
    });

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        super.getLog().log(status);
    }


    public void displayMessage(final int severity, final String msg) {
        final Display display = PlatformUI.getWorkbench().getDisplay();
        display.syncExec(new Runnable() {
            public void run() {
                switch (severity) {
                    case IStatus.ERROR:
                        MessageDialog.openError(display.getActiveShell(),
                                            Messages.getString("error"), msg); //$NON-NLS-1$

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        final IStatus status = createStatus(severity, msg, t);
        if (shouldLog) {
            writeLog(status);
        }
        final Display display = PlatformUI.getWorkbench().getDisplay();
        display.syncExec(new Runnable() {
            public void run() {
                ErrorDialog.openError(display.getActiveShell(),
                                   null,
                                   Messages.getString("error"), status); //$NON-NLS-1$
            }

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