Bug 85147 [Preferences] filter field: Looses focus on type
20050208 When you type in the filter field, the focus ofter switched to the tree. You have to give the filter field the focus again to continue typing
bundles/org.eclipse.jface/src/org/eclipse/jface/preference/PreferenceDialog.java
public boolean close() {
		List nodes = preferenceManager.getElements(PreferenceManager.PRE_ORDER);
		for (int i = 0; i < nodes.size(); i++) {
			IPreferenceNode node = (IPreferenceNode) nodes.get(i);
			node.disposeResources();
		}
		return super.close();
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.jface.window.Window#configureShell(org.eclipse.swt.widgets.Shell)
	 */
	protected void configureShell(Shell newShell) {
		super.configureShell(newShell);
		newShell.setText(JFaceResources.getString("PreferenceDialog.title")); 
		newShell.addShellListener(new ShellAdapter() {
			public void shellActivated(ShellEvent e) {
				if (lastShellSize == null)
					lastShellSize = getShell().getSize();
			}
		});
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.jface.window.Window#constrainShellSize()
	 */
	protected void constrainShellSize() {
		super.constrainShellSize();