Eclipse Community Forums: Remote Application Platform (RAP) » ControlContribution in a view's menu bar

Home » Eclipse Projects » Remote Application Platform (RAP) » ControlContribution in a view's menu bar(org.eclipse.jface.action.ControlContribution in a view's ToolBar)

Show: Today's Messages :: Show Polls :: Message Navigator

ControlContribution in a view's menu bar [message #1062716]

Mon, 10 June 2013 13:26

Julia Kurde

Messages: 91
Registered: November 2011
Location: Berlin, Germany

Member

Hi,

I have a strange behavior of a ControlContribution in the ToolBar of a View: The Control (e.g. a Spinner) does not keep its focus.
index.php/fa/15217/0/

The attached figure shows the example "RAP Application with a View" generated by the New Plug-in Project wizard. I just modified the Perspective so that the view has a Title and in the method createPartControl(Composite) of the View I add a Label and the ControlContribution in the ToolBar:

public void createPartControl(Composite parent) {
  int style = SWT.MULTI | SWT.H_SCROLL | SWT.V_SCROLL;
  viewer = new TableViewer(parent, style);
  viewer.setContentProvider(new ViewContentProvider());
  viewer.setLabelProvider(new ViewLabelProvider());
  viewer.setInput(getViewSite());
		
  label = new Label(parent, SWT.BORDER);
  label.setText("label");

  IToolBarManager manager = getViewSite().getActionBars().getToolBarManager();
  manager.add(new MyControlItem(this));
}

MyControlItem looks like this:

public class MyControlItem extends ControlContribution {
	
  View view;
  public MyControlItem (View view) {
    super("id");
    this.view = view;
  }

  @Override
  protected Control createControl(Composite parent) {

  final Spinner spinner = new Spinner(parent, SWT.BORDER); 
  spinner.setMinimum( 25);
  spinner.setMaximum(400);
  spinner.setIncrement(25);
  spinner.setPageIncrement(100);
  spinner.setSelection(100);
		
  spinner.addListener(SWT.Traverse, new Listener() {
    public void handleEvent(Event event) {
      switch (event.detail) {
      case SWT.TRAVERSE_RETURN:	
        view.setLabelText(String.valueOf(spinner.getSelection()));
      }
    }
  });
  spinner.addListener(SWT.FocusOut, new Listener() {
    public void handleEvent(Event event) {
      view.setLabelText(String.valueOf(spinner.getSelection()));
    }
  });

  return spinner;
  }
}

What it SHOULD do: Update the label in the view on SWT.FocusOut or on SWT.Traverse with event.detail == SWT.TRAVERSE_RETURN.

What it ACTUALLY does: Update the label every time the value of the spinner is changed.

The reason for that is that the spinner does not keep it's focus, so a focus out event occurs.
In my real application it is not a label that should be updated but an image. To minimize the traffic it should really only be updated on focus out.

In an RCP application the label/image is updated correctly.

Is it possible get the correct behavior also in the RAP?

Regards,
Julia

Attachment: RAP_with_a_View.PNG
(Size: 7.80KB, Downloaded 1200 times)

Breadcrumbs

Sign up to our Newsletter