Bug 188027 PasteAction is diabled
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/core/ContainerContext.java
{
		/**
		 * The container element.
		 */
		protected ContainerContext focus = null;
		/**
		 * @param containerInfo
		 */
		public ContainerContextProvider( ContainerContext containerInfo )
		{
			if ( containerInfo == null )
				throw new IllegalArgumentException(
						"The containerInfo of this context should not be null" ); 
			this.focus = containerInfo;
		}
		
		/**
		 * Determines if the slot can contain an element with the type of
		 * <code>type</code>.
		 * 
		 * @param module
		 * 
		 * @param propName