Revert "Handle spacebar events."

     * @return Whether the event was handled.

     */

    public boolean handleKey(DocumentHolder doc, int keyCode, KeyEvent event) {

        boolean extendSelection = false;

        // Translate space/shift-space into PgDn/PgUp

        if (keyCode == KeyEvent.KEYCODE_SPACE) {

            if (event.isShiftPressed()) {

                keyCode = KeyEvent.KEYCODE_PAGE_UP;

            } else {

                keyCode = KeyEvent.KEYCODE_PAGE_DOWN;

            }

        } else {

            extendSelection = event.isShiftPressed();

        }

        if (Events.isNavigationKeyCode(keyCode)) {

            // Find the target item and focus it.

            int endPos = findTargetPosition(doc.itemView, keyCode, event);