How to avoid that the user can close the editor window in a RCP-eclipse-plugin programmatically?

Question

How to do away the "X" at the editor window of a RCP-eclipse-plugin and avoid that the user can close the editor programmatically?

Would it be possible and if so how?

Answer 1

For an Eclipse e4 application you can just uncheck the 'closeable' option in the part design.

For a 3.x compatibility mode RCP you can't use the closeable option. One way to make the part uncloseable would be to use a custom renderer to override the part stack renderer org.eclipse.e4.ui.workbench.renderers.swt.StackRenderer and override the isCloseable method:

public class MyStackRenderer extends StackRenderer
{
  @Override
  protected boolean isClosable(final MPart part)
  {
    if (part.getObject() instanceof MyEditor) {
      return false;
    }

    return super.isClosable(part);
  }
}

where MyEditor is your editor class.

This require Eclipse 4 but can be used with 3.x compatibility mode RCPs.