HTMLIFrameElement.cpp [plain text]
#include "config.h"
#include "HTMLIFrameElement.h"
#include "CSSPropertyNames.h"
#include "Frame.h"
#include "HTMLDocument.h"
#include "HTMLNames.h"
#include "MappedAttribute.h"
#include "RenderPartObject.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; return false;
}
if (attrName == frameborderAttr) {
result = eReplaced;
return false;
}
return HTMLFrameElementBase::mapToEntry(attrName, result);
}
#if ENABLE(SANDBOX)
static SandboxFlags parseSandboxAttribute(MappedAttribute* attribute)
{
if (attribute->isNull())
return SandboxNone;
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;
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;
start = end + 1;
}
return flags;
}
#endif
void HTMLIFrameElement::parseMappedAttribute(MappedAttribute* 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) {
if (!attr->isNull() && !attr->value().toInt())
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) RenderPartObject(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;
}
}