Bug 32038 Use shared images for properties, tasks, bookmarks views
bundles/org.eclipse.ui.views/src/org/eclipse/ui/views/tasklist/TaskList.java
propertiesAction.setEnabled(false);
			return;
		};
		
		propertiesAction.setEnabled(selection.size() == 1);
		
		copyTaskAction.setEnabled(true);
		
		IMarker selectedMarker = (IMarker) selection.getFirstElement();
		boolean canJump =
			selection.size() == 1
				&& selectedMarker.getResource().getType() == IResource.FILE;
		gotoTaskAction.setEnabled(canJump);
		
		boolean canRemove = true;
		for (Iterator markers = selection.iterator(); markers.hasNext();) {
			IMarker m = (IMarker) markers.next();
			if (!MarkerUtil.isEditable(m)) {
				canRemove = false;
				break;
			}
		}
		removeTaskAction.setEnabled(canRemove);
		
		
		if (canJump) {
			IEditorPart editor = getSite().getPage().getActiveEditor();
			if (editor != null) {
				IEditorInput input = editor.getEditorInput();
				if (input instanceof IFileEditorInput) {