1/*
2 * Copyright (C) 1999-2003 Lars Knoll (knoll@kde.org)
3 *               1999 Waldo Bastian (bastian@kde.org)
4 *               2001 Andreas Schlapbach (schlpbch@iam.unibe.ch)
5 *               2001-2003 Dirk Mueller (mueller@kde.org)
6 * Copyright (C) 2002, 2006, 2008 Apple Inc. All rights reserved.
7 *
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Library General Public
10 * License as published by the Free Software Foundation; either
11 * version 2 of the License, or (at your option) any later version.
12 *
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
16 * Library General Public License for more details.
17 *
18 * You should have received a copy of the GNU Library General Public License
19 * along with this library; see the file COPYING.LIB.  If not, write to
20 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
21 * Boston, MA 02110-1301, USA.
22 */
23#include "config.h"
24#include "StyleBase.h"
25
26#include "Document.h"
27#include "Node.h"
28#include "StyleSheet.h"
29
30namespace WebCore {
31
32String StyleBase::cssText() const
33{
34    return "";
35}
36
37void StyleBase::checkLoaded()
38{
39    if (parent())
40        parent()->checkLoaded();
41}
42
43StyleSheet* StyleBase::stylesheet()
44{
45    StyleBase *b = this;
46    while (b && !b->isStyleSheet())
47        b = b->parent();
48    return static_cast<StyleSheet*>(b);
49}
50
51KURL StyleBase::baseURL() const
52{
53    // Try to find the style sheet. If found look for its URL.
54    // If it has none, get the URL from the parent sheet or the parent node.
55
56    StyleSheet* sheet = const_cast<StyleBase*>(this)->stylesheet();
57    if (!sheet)
58        return KURL();
59    if (!sheet->finalURL().isNull())
60        return sheet->finalURL();
61    if (sheet->parent())
62        return sheet->parent()->baseURL();
63    if (!sheet->ownerNode())
64        return KURL();
65    return sheet->ownerNode()->document()->baseURL();
66}
67
68}
69