Bug 33488 [Preferences] [Help] F1 help should always give help about the selected page
build I20030227 - Window / Preferences - focus is in tree at left - F1 - it gives you help about the dialog, not the selected page - give the selected page focus - F1 - it gives you help about the page F1 should always give you help about the selected page. It should also give help about the dialog at the same time, if possible (e.g. a link for the page, and a link for the dialog).
bundles/org.eclipse.jface/src/org/eclipse/jface/preference/PreferenceDialog.java
private Image errorMsgImage;
	private boolean showingError = false;
	private Point lastShellSize;
	/**
	 * Preference store, initially <code>null</code> meaning none.
	 *
	 * @see #setPreferenceStore
	 */
	private IPreferenceStore preferenceStore;
	/**
	 * The current preference page, or <code>null</code> if
	 * there is none.
	 */
	private IPreferencePage currentPage;
	/**
	 * The preference manager.
	 */
	private PreferenceManager preferenceManager;
	/**
	 * The Composite in which a page is shown.
	 */
	private Composite pageContainer;
	/**
	 * The minimum page size; 400 by 400 by default.
	 *
	 * @see #setMinimumPageSize
	 */
	private Point minimumPageSize = new Point(400, 400);
	/**
	 * The OK button.