DOMUtilitiesPrivate.cpp [plain text]
#include "config.h"
#include "DOMUtilitiesPrivate.h"
#include "Element.h"
#include "HTMLInputElement.h"
#include "HTMLLinkElement.h"
#include "HTMLMetaElement.h"
#include "HTMLNames.h"
#include "HTMLOptionElement.h"
#include "Node.h"
using namespace WebCore;
namespace {
template <class HTMLNodeType>
HTMLNodeType* toHTMLElement(Node* node, const QualifiedName& name)
{
if (node->isHTMLElement()
&& static_cast<HTMLElement*>(node)->hasTagName(name)) {
return static_cast<HTMLNodeType*>(node);
}
return 0;
}
}
namespace WebKit {
HTMLInputElement* toHTMLInputElement(Node* node)
{
return toHTMLElement<HTMLInputElement>(node, HTMLNames::inputTag);
}
HTMLLinkElement* toHTMLLinkElement(Node* node)
{
return toHTMLElement<HTMLLinkElement>(node, HTMLNames::linkTag);
}
HTMLMetaElement* toHTMLMetaElement(Node* node)
{
return toHTMLElement<HTMLMetaElement>(node, HTMLNames::metaTag);
}
HTMLOptionElement* toHTMLOptionElement(Node* node)
{
return toHTMLElement<HTMLOptionElement>(node, HTMLNames::optionTag);
}
bool elementHasLegalLinkAttribute(const Element* element,
const QualifiedName& attrName)
{
if (attrName == HTMLNames::srcAttr) {
if (element->hasTagName(HTMLNames::imgTag)
|| element->hasTagName(HTMLNames::scriptTag)
|| element->hasTagName(HTMLNames::iframeTag)
|| element->hasTagName(HTMLNames::frameTag))
return true;
if (element->hasTagName(HTMLNames::inputTag)) {
const HTMLInputElement* input =
static_cast<const HTMLInputElement*>(element);
if (input->isImageButton())
return true;
}
} else if (attrName == HTMLNames::hrefAttr) {
if (element->hasTagName(HTMLNames::linkTag)
|| element->hasTagName(HTMLNames::aTag)
|| element->hasTagName(HTMLNames::areaTag))
return true;
} else if (attrName == HTMLNames::actionAttr) {
if (element->hasTagName(HTMLNames::formTag))
return true;
} else if (attrName == HTMLNames::backgroundAttr) {
if (element->hasTagName(HTMLNames::bodyTag)
|| element->hasTagName(HTMLNames::tableTag)
|| element->hasTagName(HTMLNames::trTag)
|| element->hasTagName(HTMLNames::tdTag))
return true;
} else if (attrName == HTMLNames::citeAttr) {
if (element->hasTagName(HTMLNames::blockquoteTag)
|| element->hasTagName(HTMLNames::qTag)
|| element->hasTagName(HTMLNames::delTag)
|| element->hasTagName(HTMLNames::insTag))
return true;
} else if (attrName == HTMLNames::classidAttr
|| attrName == HTMLNames::dataAttr) {
if (element->hasTagName(HTMLNames::objectTag))
return true;
} else if (attrName == HTMLNames::codebaseAttr) {
if (element->hasTagName(HTMLNames::objectTag)
|| element->hasTagName(HTMLNames::appletTag))
return true;
}
return false;
}
}