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      1 /*
      2  * Copyright (C) 1999 Lars Knoll (knoll (at) kde.org)
      3  *           (C) 1999 Antti Koivisto (koivisto (at) kde.org)
      4  *           (C) 2000 Simon Hausmann (hausmann (at) kde.org)
      5  *           (C) 2001 Dirk Mueller (mueller (at) kde.org)
      6  * Copyright (C) 2004, 2006, 2009 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 "HTMLFrameElement.h"
     26 
     27 #include "Attribute.h"
     28 #include "Frame.h"
     29 #include "HTMLFrameSetElement.h"
     30 #include "HTMLNames.h"
     31 #include "RenderFrame.h"
     32 
     33 namespace WebCore {
     34 
     35 using namespace HTMLNames;
     36 
     37 inline HTMLFrameElement::HTMLFrameElement(const QualifiedName& tagName, Document* document)
     38     : HTMLFrameElementBase(tagName, document)
     39     , m_frameBorder(true)
     40     , m_frameBorderSet(false)
     41     , m_noResize(false)
     42 {
     43     ASSERT(hasTagName(frameTag));
     44 }
     45 
     46 PassRefPtr<HTMLFrameElement> HTMLFrameElement::create(const QualifiedName& tagName, Document* document)
     47 {
     48     return adoptRef(new HTMLFrameElement(tagName, document));
     49 }
     50 
     51 bool HTMLFrameElement::rendererIsNeeded(RenderStyle*)
     52 {
     53     // For compatibility, frames render even when display: none is set.
     54     return isURLAllowed();
     55 }
     56 
     57 RenderObject* HTMLFrameElement::createRenderer(RenderArena* arena, RenderStyle*)
     58 {
     59     return new (arena) RenderFrame(this);
     60 }
     61 
     62 static inline HTMLFrameSetElement* containingFrameSetElement(Node* node)
     63 {
     64     while ((node = node->parentNode())) {
     65         if (node->hasTagName(framesetTag))
     66             return static_cast<HTMLFrameSetElement*>(node);
     67     }
     68     return 0;
     69 }
     70 
     71 void HTMLFrameElement::attach()
     72 {
     73     HTMLFrameElementBase::attach();
     74 
     75     if (HTMLFrameSetElement* frameSetElement = containingFrameSetElement(this)) {
     76         if (!m_frameBorderSet)
     77             m_frameBorder = frameSetElement->hasFrameBorder();
     78         if (!m_noResize)
     79             m_noResize = frameSetElement->noResize();
     80     }
     81 }
     82 
     83 void HTMLFrameElement::parseMappedAttribute(Attribute* attr)
     84 {
     85     if (attr->name() == frameborderAttr) {
     86         m_frameBorder = attr->value().toInt();
     87         m_frameBorderSet = !attr->isNull();
     88         // FIXME: If we are already attached, this has no effect.
     89     } else if (attr->name() == noresizeAttr) {
     90         m_noResize = true;
     91         // FIXME: If we are already attached, this has no effect.
     92         // FIXME: Since this does not check attr->isNull(), it can
     93         // never reset m_noResize to false if the attribute is removed.
     94     } else
     95         HTMLFrameElementBase::parseMappedAttribute(attr);
     96 }
     97 
     98 } // namespace WebCore
     99