void Element::cloneAttributesFromElement(const Element& other)
{
other.synchronizeAllAttributes();
if (!other.m_elementData) {
m_elementData.clear();
return;
}
const AtomicString& oldID = getIdAttribute();
const AtomicString& newID = other.getIdAttribute();
if (!oldID.isNull() || !newID.isNull())
updateId(oldID, newID);
// If 'other' has a mutable ElementData, convert it to an immutable one so we can share it between both elements.
// We can only do this if there are no presentation attributes and sharing the data won't result in different case sensitivity of class or id.
if (other.m_elementData->isUnique())
const_cast<Element&>(other).m_elementData = toUniqueElementData(other.m_elementData)->makeShareableCopy();
if (!other.m_elementData->isUnique())
m_elementData = other.m_elementData;
else
m_elementData = other.m_elementData->makeUniqueCopy();
AttributeCollection attributes = m_elementData->attributes();
AttributeCollection::iterator end = attributes.end();
for (AttributeCollection::iterator it = attributes.begin(); it != end; ++it)
attributeChangedFromParserOrByCloning(it->name(), it->value(), ModifiedByCloning);
}
bool ElementData::isEquivalent(const ElementData* other) const
{
AttributeCollection attributes = this->attributes();
if (!other)
return attributes.isEmpty();
AttributeCollection otherAttributes = other->attributes();
if (attributes.size() != otherAttributes.size())
return false;
AttributeCollection::iterator end = attributes.end();
for (AttributeCollection::iterator it = attributes.begin(); it != end; ++it) {
const Attribute* otherAttr = otherAttributes.find(it->name());
if (!otherAttr || it->value() != otherAttr->value())
return false;
}
return true;
}
// TODO(yosin): We should utilize |MarkupFormatter| here to share code,
// especially escaping attribute values, done by |WebEntities| |m_htmlEntities|
// and |m_xmlEntities|.
void WebPageSerializerImpl::openTagToString(Element* element,
SerializeDomParam* param)
{
bool needSkip;
StringBuilder result;
// Do pre action for open tag.
result.append(preActionBeforeSerializeOpenTag(element, param, &needSkip));
if (needSkip)
return;
// Add open tag
result.append('<');
result.append(element->nodeName().lower());
// Go through all attributes and serialize them.
AttributeCollection attributes = element->attributes();
AttributeCollection::iterator end = attributes.end();
for (AttributeCollection::iterator it = attributes.begin(); it != end; ++it) {
result.append(' ');
// Add attribute pair
result.append(it->name().toString());
result.appendLiteral("=\"");
if (!it->value().isEmpty()) {
const String& attrValue = it->value();
// Check whether we need to replace some resource links
// with local resource paths.
const QualifiedName& attrName = it->name();
if (element->hasLegalLinkAttribute(attrName)) {
// For links start with "javascript:", we do not change it.
if (attrValue.startsWith("javascript:", TextCaseInsensitive)) {
result.append(m_htmlEntities.convertEntitiesInString(attrValue));
} else {
// Get the absolute link
WebLocalFrameImpl* subFrame = WebLocalFrameImpl::fromFrameOwnerElement(element);
String completeURL = subFrame ? subFrame->frame()->document()->url() :
param->document->completeURL(attrValue);
// Check whether we have local files for those link.
if (m_localLinks.contains(completeURL)) {
if (!param->directoryName.isEmpty()) {
result.appendLiteral("./");
result.append(param->directoryName);
result.append('/');
}
result.append(m_htmlEntities.convertEntitiesInString(m_localLinks.get(completeURL)));
} else {
result.append(m_htmlEntities.convertEntitiesInString(completeURL));
}
}
} else {
if (param->isHTMLDocument)
result.append(m_htmlEntities.convertEntitiesInString(attrValue));
else
result.append(m_xmlEntities.convertEntitiesInString(attrValue));
}
}
result.append('\"');
}
// Do post action for open tag.
String addedContents = postActionAfterSerializeOpenTag(element, param);
// Complete the open tag for element when it has child/children.
if (element->hasChildren() || param->haveAddedContentsBeforeEnd)
result.append('>');
// Append the added contents generate in post action of open tag.
result.append(addedContents);
// Save the result to data buffer.
saveHTMLContentToBuffer(result.toString(), param);
}