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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, 2008, 2009 Apple Inc. All rights reserved.
      7  * Copyright (C) 2009 Ericsson AB. All rights reserved.
      8  *
      9  * This library is free software; you can redistribute it and/or
     10  * modify it under the terms of the GNU Library General Public
     11  * License as published by the Free Software Foundation; either
     12  * version 2 of the License, or (at your option) any later version.
     13  *
     14  * This library is distributed in the hope that it will be useful,
     15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
     16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     17  * Library General Public License for more details.
     18  *
     19  * You should have received a copy of the GNU Library General Public License
     20  * along with this library; see the file COPYING.LIB.  If not, write to
     21  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
     22  * Boston, MA 02110-1301, USA.
     23  */
     24 
     25 #include "config.h"
     26 #include "core/html/HTMLIFrameElement.h"
     27 
     28 #include "core/CSSPropertyNames.h"
     29 #include "core/HTMLNames.h"
     30 #include "core/html/HTMLDocument.h"
     31 #include "core/rendering/RenderIFrame.h"
     32 
     33 namespace WebCore {
     34 
     35 using namespace HTMLNames;
     36 
     37 inline HTMLIFrameElement::HTMLIFrameElement(Document& document)
     38     : HTMLFrameElementBase(iframeTag, document)
     39     , m_didLoadNonEmptyDocument(false)
     40 {
     41     ScriptWrappable::init(this);
     42 }
     43 
     44 DEFINE_NODE_FACTORY(HTMLIFrameElement)
     45 
     46 bool HTMLIFrameElement::isPresentationAttribute(const QualifiedName& name) const
     47 {
     48     if (name == widthAttr || name == heightAttr || name == alignAttr || name == frameborderAttr)
     49         return true;
     50     return HTMLFrameElementBase::isPresentationAttribute(name);
     51 }
     52 
     53 void HTMLIFrameElement::collectStyleForPresentationAttribute(const QualifiedName& name, const AtomicString& value, MutableStylePropertySet* style)
     54 {
     55     if (name == widthAttr)
     56         addHTMLLengthToStyle(style, CSSPropertyWidth, value);
     57     else if (name == heightAttr)
     58         addHTMLLengthToStyle(style, CSSPropertyHeight, value);
     59     else if (name == alignAttr)
     60         applyAlignmentAttributeToStyle(value, style);
     61     else if (name == frameborderAttr) {
     62         // LocalFrame border doesn't really match the HTML4 spec definition for iframes. It simply adds
     63         // a presentational hint that the border should be off if set to zero.
     64         if (!value.toInt()) {
     65             // Add a rule that nulls out our border width.
     66             addPropertyToPresentationAttributeStyle(style, CSSPropertyBorderWidth, 0, CSSPrimitiveValue::CSS_PX);
     67         }
     68     } else
     69         HTMLFrameElementBase::collectStyleForPresentationAttribute(name, value, style);
     70 }
     71 
     72 void HTMLIFrameElement::parseAttribute(const QualifiedName& name, const AtomicString& value)
     73 {
     74     if (name == nameAttr) {
     75         if (inDocument() && document().isHTMLDocument() && !isInShadowTree()) {
     76             HTMLDocument& document = toHTMLDocument(this->document());
     77             document.removeExtraNamedItem(m_name);
     78             document.addExtraNamedItem(value);
     79         }
     80         m_name = value;
     81     } else if (name == sandboxAttr) {
     82         String invalidTokens;
     83         setSandboxFlags(value.isNull() ? SandboxNone : parseSandboxPolicy(value, invalidTokens));
     84         if (!invalidTokens.isNull())
     85             document().addConsoleMessage(OtherMessageSource, ErrorMessageLevel, "Error while parsing the 'sandbox' attribute: " + invalidTokens);
     86     } else {
     87         HTMLFrameElementBase::parseAttribute(name, value);
     88     }
     89 }
     90 
     91 bool HTMLIFrameElement::rendererIsNeeded(const RenderStyle& style)
     92 {
     93     return isURLAllowed() && HTMLElement::rendererIsNeeded(style);
     94 }
     95 
     96 RenderObject* HTMLIFrameElement::createRenderer(RenderStyle*)
     97 {
     98     return new RenderIFrame(this);
     99 }
    100 
    101 Node::InsertionNotificationRequest HTMLIFrameElement::insertedInto(ContainerNode* insertionPoint)
    102 {
    103     InsertionNotificationRequest result = HTMLFrameElementBase::insertedInto(insertionPoint);
    104     if (insertionPoint->inDocument() && document().isHTMLDocument() && !insertionPoint->isInShadowTree())
    105         toHTMLDocument(document()).addExtraNamedItem(m_name);
    106     return result;
    107 }
    108 
    109 void HTMLIFrameElement::removedFrom(ContainerNode* insertionPoint)
    110 {
    111     HTMLFrameElementBase::removedFrom(insertionPoint);
    112     if (insertionPoint->inDocument() && document().isHTMLDocument() && !insertionPoint->isInShadowTree())
    113         toHTMLDocument(document()).removeExtraNamedItem(m_name);
    114 }
    115 
    116 bool HTMLIFrameElement::isInteractiveContent() const
    117 {
    118     return true;
    119 }
    120 
    121 }
    122