Bug 51991 [Progress] Half-busy cursor API on site progress service
Currently the Team components set the half-busy cursor in views that are running a job via the IWorkbenchSiteProgressService mechanism. But we can't show this cursor on the toolbar or view title pane. It would be better if the site progress service had API for setting the cursor on the partpane. This would allow showing the half-busy cursor for the entire part.
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/views/markers/internal/TableContentProvider.java
}
	
	/**
	 * Sets the contents of the table. Note that the changes may not become visible
	 * immediately, as the viewer will actually be updated in a background thread.
	 * 
	 * @param newVisibleItems
	 */
	public void set(Collection newVisibleItems, IProgressMonitor mon) {
		lock.acquire();
		
		try {
			queues.set(newVisibleItems, mon);
				
			scheduleUpdate();
		} finally {
			lock.release();
		}
	}
	
	/**
	 * If the contents of the viewer have somehow become out-of-sync with the "visibleItems"
	 * set, this method will restore synchronization.
	 */
	private void resync() {
		if (controlExists()) {
			int count = queues.getViewer().getTable().getItemCount();
			if (count != queues.countVisibleItems()) {
				queues.getViewer().refresh();
			}