this.mainWidget.createWidget( composite );
this.mainWidget.setInput( new IEntry[]
{ rootEntry } );
// create actions and context menu (and register global actions)
this.actionGroup = new BrowserActionGroup( this.mainWidget, this.configuration );
this.actionGroup.fillToolBar( this.mainWidget.getToolBarManager() );
this.actionGroup.fillMenu( this.mainWidget.getMenuManager() );
this.actionGroup.fillContextMenu( this.mainWidget.getContextMenuManager() );
this.actionGroup.activateGlobalActionHandlers();