Bug 32906 Open (in) Type Hierarchy: expansion state is inconsistent across the modes 'show type/supertype/subtype hierarchy' [type hierarchy]
case 1: - select 'show type hierarchy' in the hierarchy view - in an editor press F4 on a class name -> 'show type hierarchy' is ok -> 'show supertype hierarchy' is collapsed -> 'show subtype hierarchy' is ok case 2: - select 'show supertype hierarchy' - in an editor press F4 on a class name -> 'show supertype hierarchy' is ok -> 'show type hierarchy' is only expanded down to the focused type, this is inconsistent with case 1 -> 'show subtype hierarchy' is collapsed case 3: - select 'show subtype hierarchy' - in an editor press F4 on a class name -> 'show subtype hierarchy' is only expanded to level 1 (which is consistent but impractical) -> 'show supertype hierarchy' is collapsed -> 'show type hierarchy' is only expanded down to the focused type, this is inconsistent with case 1
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/typehierarchy/TypeHierarchyViewPart.java
if (val != null) {
			fLinkingEnabled= val.intValue() != 0;
		}
	}
	
	
	/**
	 * view part becomes visible
	 */
	protected void visibilityChanged(boolean isVisible) {
		fIsVisible= isVisible;
		if (isVisible && fNeedRefresh) {
			doTypeHierarchyChanged(fHierarchyLifeCycle, null);
		}
		fNeedRefresh= false;
	}
	
	
	/**
	 * Link selection to active editor.
	 */
	protected void editorActivated(IEditorPart editor) {
		if (!isLinkingEnabled()) {
			return;
		}
		if (fInputElement == null) {
			
			return;
		}