Roster Menus

It's now possible to create a Roster Menu...i.e. a dynamically created menu from the ECF contacts list/roster.

So, for example, here's my current contacts list:

Here's a new roster menu, that shows as a menu the active roster entries (buddies)

Note that this menu can be added to any existing menu using the platform UI Menu Contributions mechanisms. So this roster menu can be used to interact with roster entry items in any appropriate context (e.g. an editor, a view, workbench, etc).

The way this works is that a plugin can add markup similar to the following to specify a new roster menu contribution:

   <extension
         point="org.eclipse.ui.menus">
      <menuContribution
            locationURI="popup:org.eclipse.ecf.presence.ui.MultiRosterView?before=additions">
         <dynamic
               class="org.eclipse.ecf.presence.ui.menu.NoopRosterMenuContributionItem"
               id="org.eclipse.ecf.presence.collab.ui.dynamic5">
         </dynamic>
      </menuContribution>
   </extension>

Notice the class org.eclipse.ecf.presence.ui.menu.NoopRosterMenuContributionItem. This is a new class that creates a roster menu contribution that does nothing (performs a noop). The way this works is that the command handler associated with this contribution item does nothing, so that when the Ted Kubaska menu item is chosen, nothing happens.

It's easy, however to create a subclass of [ http://www.eclipse.org/ecf/org.eclipse.ecf.docs/api/org/eclipse/ecf/presence/ui/menu/AbstractRosterMenuContributionItem.html org.eclipse.ecf.presence.ui.menu.AbstractRosterMenuContributionItem] and customize the roster menu behavior. The following is the implementation of org.eclipse.ecf.presence.ui.menu.NoopRosterMenuContributionItem:

public class NoopRosterMenuContributionItem extends AbstractRosterMenuContributionItem {

	protected AbstractRosterMenuHandler createRosterEntryHandler(IRosterEntry rosterEntry) {
		return new AbstractRosterMenuHandler(rosterEntry) {
			public Object execute(ExecutionEvent arg0) throws ExecutionException {
				System.out.println("execute(" + arg0 + ") on rosterEntry=" + getRosterEntry()); 
				return null;
			}

		};
	}

}

When a roster menu item is selected, the AbstractRosterMenuHandler.execute(ExecutionEvent arg0) method is called, and arbitrary code may then be executed.

Others can create their own subclass of org.eclipse.ecf.presence.ui.menu.AbstractRosterMenuContributionItem and to customize the look, contents, or resulting command handler for the roster menu.