theSession().bookmarks().bookmark(idx);
        LASSERT(!bm.filename.empty(), return);
        string const file = bm.filename.absFileName();
        // if the file is not opened, open it.
        if (!theBufferList().exists(bm.filename)) {
                if (openFile)
                        dispatch(FuncRequest(LFUN_FILE_OPEN, file));
                else
                        return;
        }
        // open may fail, so we need to test it again
        if (!theBufferList().exists(bm.filename))
                return;

        // bm can be changed when saving
        BookmarksSection::Bookmark tmp = bm;

        // Special case idx == 0 used for back-from-back jump navigation
        if (idx == 0)
                dispatch(FuncRequest(LFUN_BOOKMARK_SAVE, "0"));

        // if the current buffer is not that one, switch to it.
        BufferView * doc_bv = current_view_ ?
                current_view_->documentBufferView() : 0;

        Cursor const old = doc_bv->cursor();

        if (!doc_bv || doc_bv->buffer().fileName() != tmp.filename) {
                if (switchToBuffer) {
                        dispatch(FuncRequest(LFUN_BUFFER_SWITCH, file));
                        if (!current_view_)
                                return;
                        doc_bv = current_view_->documentBufferView();
                } else
                        return;
        }

        // moveToPosition try paragraph id first and then paragraph (pit, pos).
        if (!doc_bv->moveToPosition(
                        tmp.bottom_pit, tmp.bottom_pos, tmp.top_id, tmp.top_pos))
                return;

        Cursor & cur = doc_bv->cursor();
        if (cur != old)
                notifyCursorLeavesOrEnters(old, cur);

        // bm changed
        if (idx == 0)
                return;

        // Cursor jump succeeded!
        pit_type new_pit = cur.pit();
        pos_type new_pos = cur.pos();
        int new_id = cur.paragraph().id();