Bug 55090 [Progress] How to show busy in multiple instances of the same view
Currently to get the view busy indicator you have to schedule a job in a workbench part. But what happens when there are multiple instances of a view created, which view should be busy. Ideally, you could instead associate a view type with a job.
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/views/markers/internal/MarkerView.java
/* (non-Javadoc)
	 * @see org.eclipse.ui.views.internal.tableview.TableView#handleOpenEvent(org.eclipse.jface.viewers.OpenEvent)
	 */
	protected void handleOpenEvent(OpenEvent event) {
		openAction.run();
	}
	/* (non-Javadoc)
	 * @see org.eclipse.ui.views.internal.tableview.TableView#saveSelection(org.eclipse.ui.IMemento)
	 */
	protected void saveSelection(IMemento memento) {
		IStructuredSelection selection = (IStructuredSelection)getViewer().getSelection();
		IMemento selectionMem = memento.createChild(TAG_SELECTION);
		for (Iterator iterator = selection.iterator(); iterator.hasNext();) {
			ConcreteMarker marker = (ConcreteMarker) iterator.next();
			IMemento elementMem = selectionMem.createChild(TAG_MARKER);
			elementMem.putString(TAG_RESOURCE, marker.getMarker().getResource().getFullPath().toString());
			elementMem.putString(TAG_ID, String.valueOf(marker.getMarker().getId()));
		}
	}
	/* (non-Javadoc)
	 * @see org.eclipse.ui.views.internal.tableview.TableView#restoreSelection(org.eclipse.ui.IMemento)
	 */
	protected IStructuredSelection restoreSelection(IMemento memento) {
		if (memento == null) {
			return new StructuredSelection();
		}
		IWorkspaceRoot root = ResourcesPlugin.getWorkspace().getRoot();
		IMemento selectionMemento = memento.getChild(TAG_SELECTION);
		if (selectionMemento == null) {
			return new StructuredSelection();