1 /*

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

     3  *           (C) 1999 Antti Koivisto (koivisto@kde.org)

     4  *           (C) 2000 Simon Hausmann (hausmann@kde.org)

     5  *           (C) 2001 Dirk Mueller (mueller@kde.org)

     6  * Copyright (C) 2004, 2006, 2010 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 

    24 #include "config.h"

    25 #include "HTMLHeadElement.h"

    26 

    27 #include "HTMLNames.h"

    28 #include "Text.h"

    29 

    30 namespace WebCore {

    31 

    32 using namespace HTMLNames;

    33 

    34 HTMLHeadElement::HTMLHeadElement(const QualifiedName& tagName, Document* document)

    35     : HTMLElement(tagName, document)

    36 {

    37     ASSERT(hasTagName(headTag));

    38 }

    39 

    40 PassRefPtr<HTMLHeadElement> HTMLHeadElement::create(Document* document)

    41 {

    42     return adoptRef(new HTMLHeadElement(headTag, document));

    43 }

    44 

    45 PassRefPtr<HTMLHeadElement> HTMLHeadElement::create(const QualifiedName& tagName, Document* document)

    46 {

    47     return adoptRef(new HTMLHeadElement(tagName, document));

    48 }

    49 

    50 bool HTMLHeadElement::childAllowed(Node* newChild)

    51 {

    52     // Do not allow non-whitespace text nodes in the head

    53     if (newChild->isTextNode())

    54         return static_cast<Text*>(newChild)->containsOnlyWhitespace();

    55     

    56     return HTMLElement::childAllowed(newChild);

    57 }

    58 

    59 bool HTMLHeadElement::checkDTD(const Node* newChild)

    60 {

    61     return newChild->hasTagName(noscriptTag) || newChild->hasTagName(titleTag) || newChild->hasTagName(isindexTag) ||

    62            newChild->hasTagName(baseTag) || newChild->hasTagName(scriptTag) ||

    63            newChild->hasTagName(styleTag) || newChild->hasTagName(metaTag) ||

    64            newChild->hasTagName(linkTag) || newChild->isTextNode();

    65 }

    66 

    67 }