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 

    30 namespace WebCore {

    31 

    32 String StyleBase::cssText() const

    33 {

    34     return "";

    35 }

    36 

    37 void StyleBase::checkLoaded()

    38 {

    39     if (parent())

    40         parent()->checkLoaded();

    41 }

    42 

    43 StyleSheet* StyleBase::stylesheet()

    44 {

    45     StyleBase *b = this;

    46     while (b && !b->isStyleSheet())

    47         b = b->parent();

    48     return static_cast<StyleSheet*>(b);

    49 }

    50 

    51 KURL 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 }