--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WebCore/html/HTMLIFrameElement.cpp	Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,170 @@
+/*
+ * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
+ *           (C) 1999 Antti Koivisto (koivisto@kde.org)
+ *           (C) 2000 Simon Hausmann (hausmann@kde.org)
+ *           (C) 2001 Dirk Mueller (mueller@kde.org)
+ * Copyright (C) 2004, 2006, 2008, 2009 Apple Inc. All rights reserved.
+ * Copyright (C) 2009 Ericsson AB. All rights reserved.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public License
+ * along with this library; see the file COPYING.LIB.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#include "config.h"
+#include "HTMLIFrameElement.h"
+
+#include "Attribute.h"
+#include "CSSPropertyNames.h"
+#include "Frame.h"
+#include "HTMLDocument.h"
+#include "HTMLNames.h"
+#include "RenderIFrame.h"
+
+namespace WebCore {
+
+using namespace HTMLNames;
+
+inline HTMLIFrameElement::HTMLIFrameElement(const QualifiedName& tagName, Document* document)
+    : HTMLFrameElementBase(tagName, document)
+{
+    ASSERT(hasTagName(iframeTag));
+}
+
+PassRefPtr<HTMLIFrameElement> HTMLIFrameElement::create(const QualifiedName& tagName, Document* document)
+{
+    return adoptRef(new HTMLIFrameElement(tagName, document));
+}
+
+bool HTMLIFrameElement::mapToEntry(const QualifiedName& attrName, MappedAttributeEntry& result) const
+{
+    if (attrName == widthAttr || attrName == heightAttr) {
+        result = eUniversal;
+        return false;
+    }
+    
+    if (attrName == alignAttr) {
+        result = eReplaced; // Share with <img> since the alignment behavior is the same.
+        return false;
+    }
+    
+    if (attrName == frameborderAttr) {
+        result = eReplaced;
+        return false;
+    }
+
+    return HTMLFrameElementBase::mapToEntry(attrName, result);
+}
+
+#if ENABLE(SANDBOX)
+static SandboxFlags parseSandboxAttribute(Attribute* attribute)
+{
+    if (attribute->isNull())
+        return SandboxNone;
+
+    // Parse the unordered set of unique space-separated tokens.
+    SandboxFlags flags = SandboxAll;
+    const UChar* characters = attribute->value().characters();
+    unsigned length = attribute->value().length();
+    unsigned start = 0;
+    while (true) {
+        while (start < length && isASCIISpace(characters[start]))
+            ++start;
+        if (start >= length)
+            break;
+        unsigned end = start + 1;
+        while (end < length && !isASCIISpace(characters[end]))
+            ++end;
+
+        // Turn off the corresponding sandbox flag if it's set as "allowed".
+        String sandboxToken = String(characters + start, end - start);
+        if (equalIgnoringCase(sandboxToken, "allow-same-origin"))
+            flags &= ~SandboxOrigin;
+        else if (equalIgnoringCase(sandboxToken, "allow-forms"))
+            flags &= ~SandboxForms;
+        else if (equalIgnoringCase(sandboxToken, "allow-scripts"))
+            flags &= ~SandboxScripts;
+        else if (equalIgnoringCase(sandboxToken, "allow-top-navigation"))
+            flags &= ~SandboxTopNavigation;
+
+        start = end + 1;
+    }
+
+    return flags;
+}
+#endif
+
+void HTMLIFrameElement::parseMappedAttribute(Attribute* attr)
+{
+    if (attr->name() == widthAttr)
+        addCSSLength(attr, CSSPropertyWidth, attr->value());
+    else if (attr->name() == heightAttr)
+        addCSSLength(attr, CSSPropertyHeight, attr->value());
+    else if (attr->name() == alignAttr)
+        addHTMLAlignment(attr);
+    else if (attr->name() == nameAttr) {
+        const AtomicString& newName = attr->value();
+        if (inDocument() && document()->isHTMLDocument()) {
+            HTMLDocument* document = static_cast<HTMLDocument*>(this->document());
+            document->removeExtraNamedItem(m_name);
+            document->addExtraNamedItem(newName);
+        }
+        m_name = newName;
+    } else if (attr->name() == frameborderAttr) {
+        // Frame border doesn't really match the HTML4 spec definition for iframes.  It simply adds
+        // a presentational hint that the border should be off if set to zero.
+        if (!attr->isNull() && !attr->value().toInt())
+            // Add a rule that nulls out our border width.
+            addCSSLength(attr, CSSPropertyBorderWidth, "0");
+    }
+#if ENABLE(SANDBOX)
+    else if (attr->name() == sandboxAttr)
+        setSandboxFlags(parseSandboxAttribute(attr));
+#endif
+    else
+        HTMLFrameElementBase::parseMappedAttribute(attr);
+}
+
+bool HTMLIFrameElement::rendererIsNeeded(RenderStyle* style)
+{
+    return isURLAllowed() && style->display() != NONE;
+}
+
+RenderObject* HTMLIFrameElement::createRenderer(RenderArena* arena, RenderStyle*)
+{
+    return new (arena) RenderIFrame(this);
+}
+
+void HTMLIFrameElement::insertedIntoDocument()
+{
+    if (document()->isHTMLDocument())
+        static_cast<HTMLDocument*>(document())->addExtraNamedItem(m_name);
+
+    HTMLFrameElementBase::insertedIntoDocument();
+}
+
+void HTMLIFrameElement::removedFromDocument()
+{
+    if (document()->isHTMLDocument())
+        static_cast<HTMLDocument*>(document())->removeExtraNamedItem(m_name);
+
+    HTMLFrameElementBase::removedFromDocument();
+}
+
+bool HTMLIFrameElement::isURLAttribute(Attribute* attr) const
+{
+    return attr->name() == srcAttr;
+}
+
+}