1 /**

     2  * (C) 1999-2003 Lars Knoll (knoll@kde.org)

     3  * Copyright (C) 2004, 2006, 2007 Apple Inc. All rights reserved.

     4  *

     5  * This library is free software; you can redistribute it and/or

     6  * modify it under the terms of the GNU Library General Public

     7  * License as published by the Free Software Foundation; either

     8  * version 2 of the License, or (at your option) any later version.

     9  *

    10  * This library is distributed in the hope that it will be useful,

    11  * but WITHOUT ANY WARRANTY; without even the implied warranty of

    12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

    13  * Library General Public License for more details.

    14  *

    15  * You should have received a copy of the GNU Library General Public License

    16  * along with this library; see the file COPYING.LIB.  If not, write to

    17  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,

    18  * Boston, MA 02110-1301, USA.

    19  */

    20 

    21 #include "config.h"

    22 #include "StyleSheetList.h"

    23 

    24 #include "CSSStyleSheet.h"

    25 #include "Document.h"

    26 #include "HTMLNames.h"

    27 #include "HTMLStyleElement.h"

    28 #include "PlatformString.h"

    29 

    30 namespace WebCore {

    31 

    32 using namespace HTMLNames;

    33 

    34 StyleSheetList::StyleSheetList(Document* doc)

    35     : m_doc(doc)

    36 {

    37 }

    38 

    39 StyleSheetList::~StyleSheetList()

    40 {

    41 }

    42 

    43 void StyleSheetList::documentDestroyed()

    44 {

    45     m_doc = 0;

    46 }

    47 

    48 unsigned StyleSheetList::length() const

    49 {

    50     return m_sheets.size();

    51 }

    52 

    53 StyleSheet* StyleSheetList::item(unsigned index)

    54 {

    55     return index < length() ? m_sheets[index].get() : 0;

    56 }

    57 

    58 HTMLStyleElement* StyleSheetList::getNamedItem(const String& name) const

    59 {

    60     if (!m_doc)

    61         return 0;

    62 

    63     // IE also supports retrieving a stylesheet by name, using the name/id of the <style> tag

    64     // (this is consistent with all the other collections)

    65     // ### Bad implementation because returns a single element (are IDs always unique?)

    66     // and doesn't look for name attribute.

    67     // But unicity of stylesheet ids is good practice anyway ;)

    68     

    69     Element* element = m_doc->getElementById(name);

    70     if (element && element->hasTagName(styleTag))

    71         return static_cast<HTMLStyleElement*>(element);

    72     return 0;

    73 }

    74 

    75 } // namespace WebCore