Bug 29914 Icons for "Sync with Editor", "Collapse All"
We currently have no colored (hover) icon for the "Sync with Editor" and "Collapse All" actions. Also there is not disabled icon for the "Sync with Editor" action.
bundles/org.eclipse.ui.views/src/org/eclipse/ui/views/navigator/MainActionGroup.java
navigator.setWorkingSet(null);
					}
				}
			}
		};
		TreeViewer treeView = navigator.getViewer(); 
		Shell shell = treeView.getControl().getShell();
		workingSetGroup = new WorkingSetFilterActionGroup(shell, workingSetUpdater);
		workingSetGroup.setWorkingSet(navigator.getWorkingSet());
		sortAndFilterGroup = new SortAndFilterActionGroup(navigator);
		workspaceGroup = new WorkspaceActionGroup(navigator);
	}
	
	/**
	 * Extends the superclass implementation to set the context in the subgroups.
	 */
	public void setContext(ActionContext context) {
		super.setContext(context);
		gotoGroup.setContext(context);
		openGroup.setContext(context);
		refactorGroup.setContext(context);
		sortAndFilterGroup.setContext(context);
		workspaceGroup.setContext(context);
	}
	
	/**
	 * Fills the context menu with the actions contained in this group
	 * and its subgroups.
	 * 
	 * @param menu the context menu