Bug 37463 [Navigator] Should not sync with selection in Navigator and Editor
If the resource A is opened by Editor, and the resource B is opened by Editor, whenever the selection is changed bewteen A and B on Navigator, the active Editor is switched. This is very very annoying if the editor supports Drag and Drop. The previous eclipse could control this sync by its preference but this prefs seems to be gone. It is very severe usability issue. Need to get this prefs back for 2.1.
bundles/org.eclipse.ui.views/src/org/eclipse/ui/views/navigator/ResourceNavigator.java
getActionGroup().setContext(new ActionContext(selection));
		getActionGroup().fillContextMenu(menu);
	}
	/*
	 * @see IResourceNavigatorPart
	 * @since 2.0
	 */
	public FrameList getFrameList() {
		return frameList;
	}
	/** 
	 * Returns the initial input for the viewer.
	 * Tries to convert the page input to a resource, either directly or via IAdaptable.
	 * If the resource is a container, it uses that.
	 * If the resource is a file, it uses its parent folder.
	 * If a resource could not be obtained, it uses the workspace root.
	 * 
	 * @since 2.0
	 */
	protected IAdaptable getInitialInput() {
		IAdaptable input = getSite().getPage().getInput();
		if (input != null) {
			IResource resource = null;
			if (input instanceof IResource) {
				resource = (IResource) input;
			} else {
				resource = (IResource) input.getAdapter(IResource.class);
			}
			if (resource != null) {
				switch (resource.getType()) {