Time for action – contributing commands to pop-up menus

It's useful to be able to add contributions to pop-up menus so that they can be used by different places. Fortunately this can be done fairly easily with the menuContribution fragment and a combination of enablement tests. However, to implement this in E4, the view must be moved into the fragment.e4xmi file in order to attach a PopupMenu.

1. Add the org.eclipse.ui.services package as a dependency to the plugin.xml in the Dependencies tab, if it's not already added.

2. Open the TimeZoneTableView class and add the following to the end of the createPartControl method:

   private void createPartControl(Composite parent, EMenuService menuService) {
     menuService.registerContextMenu(tableViewer.getControl(), "com.packtpub.e4.clock.ui.popup");
     tableViewer.addSelectionChangedListener(event -> {
       // forward selection
       Object selection = ((IStructuredSelection) event.getSelection()).getFirstElement();
       if (selection != null && selectionService...