bool DOMPatchSupport::innerPatchNode(Digest* oldDigest, Digest* newDigest, ExceptionState& exceptionState)
{
if (oldDigest->m_sha1 == newDigest->m_sha1)
return true;
Node* oldNode = oldDigest->m_node;
Node* newNode = newDigest->m_node;
if (newNode->nodeType() != oldNode->nodeType() || newNode->nodeName() != oldNode->nodeName())
return m_domEditor->replaceChild(oldNode->parentNode(), newNode, oldNode, exceptionState);
if (oldNode->nodeValue() != newNode->nodeValue()) {
if (!m_domEditor->setNodeValue(oldNode, newNode->nodeValue(), exceptionState))
return false;
}
if (!oldNode->isElementNode())
return true;
// Patch attributes
Element* oldElement = toElement(oldNode);
Element* newElement = toElement(newNode);
if (oldDigest->m_attrsSHA1 != newDigest->m_attrsSHA1) {
// FIXME: Create a function in Element for removing all properties. Take in account whether did/willModifyAttribute are important.
if (oldElement->hasAttributesWithoutUpdate()) {
while (oldElement->attributeCount()) {
const Attribute& attribute = oldElement->attributeAt(0);
if (!m_domEditor->removeAttribute(oldElement, attribute.localName(), exceptionState))
return false;
}
}
// FIXME: Create a function in Element for copying properties. cloneDataFromElement() is close but not enough for this case.
if (newElement->hasAttributesWithoutUpdate()) {
AttributeCollection attributes = newElement->attributes();
AttributeCollection::const_iterator end = attributes.end();
for (AttributeCollection::const_iterator it = attributes.begin(); it != end; ++it) {
if (!m_domEditor->setAttribute(oldElement, it->name().localName(), it->value(), exceptionState))
return false;
}
}
}
bool result = innerPatchChildren(oldElement, oldDigest->m_children, newDigest->m_children, exceptionState);
m_unusedNodesMap.remove(newDigest->m_sha1);
return result;
}
PassOwnPtr<DOMPatchSupport::Digest> DOMPatchSupport::createDigest(Node* node, UnusedNodesMap* unusedNodesMap)
{
Digest* digest = new Digest(node);
OwnPtr<blink::WebCryptoDigestor> digestor = createDigestor(HashAlgorithmSha1);
DigestValue digestResult;
Node::NodeType nodeType = node->nodeType();
digestor->consume(reinterpret_cast<const unsigned char*>(&nodeType), sizeof(nodeType));
addStringToDigestor(digestor.get(), node->nodeName());
addStringToDigestor(digestor.get(), node->nodeValue());
if (node->isElementNode()) {
Element& element = toElement(*node);
Node* child = element.firstChild();
while (child) {
OwnPtr<Digest> childInfo = createDigest(child, unusedNodesMap);
addStringToDigestor(digestor.get(), childInfo->m_sha1);
child = child->nextSibling();
digest->m_children.append(childInfo.release());
}
if (element.hasAttributesWithoutUpdate()) {
OwnPtr<blink::WebCryptoDigestor> attrsDigestor = createDigestor(HashAlgorithmSha1);
AttributeCollection attributes = element.attributes();
AttributeCollection::const_iterator end = attributes.end();
for (AttributeCollection::const_iterator it = attributes.begin(); it != end; ++it) {
addStringToDigestor(attrsDigestor.get(), it->name().toString());
addStringToDigestor(attrsDigestor.get(), it->value().string());
}
finishDigestor(attrsDigestor.get(), digestResult);
digest->m_attrsSHA1 = base64Encode(reinterpret_cast<const char*>(digestResult.data()), 10);
addStringToDigestor(digestor.get(), digest->m_attrsSHA1);
digestResult.clear();
}
}
finishDigestor(digestor.get(), digestResult);
digest->m_sha1 = base64Encode(reinterpret_cast<const char*>(digestResult.data()), 10);
if (unusedNodesMap)
unusedNodesMap->add(digest->m_sha1, digest);
return adoptPtr(digest);
}
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.
if (element->hasAttributes()) {
AttributeCollection attributes = element->attributes();
AttributeCollection::const_iterator end = attributes.end();
for (AttributeCollection::const_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:", false))
result.append(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_localLinks.get(completeURL));
} else
result.append(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);
}
// FIXME: This function should not deal with url or serviceType!
void HTMLObjectElement::parametersForPlugin(Vector<String>& paramNames, Vector<String>& paramValues, String& url, String& serviceType)
{
HashSet<StringImpl*, CaseFoldingHash> uniqueParamNames;
String urlParameter;
// Scan the PARAM children and store their name/value pairs.
// Get the URL and type from the params if we don't already have them.
for (HTMLParamElement* p = Traversal<HTMLParamElement>::firstChild(*this); p; p = Traversal<HTMLParamElement>::nextSibling(*p)) {
String name = p->name();
if (name.isEmpty())
continue;
uniqueParamNames.add(name.impl());
paramNames.append(p->name());
paramValues.append(p->value());
// FIXME: url adjustment does not belong in this function.
if (url.isEmpty() && urlParameter.isEmpty() && (equalIgnoringCase(name, "src") || equalIgnoringCase(name, "movie") || equalIgnoringCase(name, "code") || equalIgnoringCase(name, "url")))
urlParameter = stripLeadingAndTrailingHTMLSpaces(p->value());
// FIXME: serviceType calculation does not belong in this function.
if (serviceType.isEmpty() && equalIgnoringCase(name, "type")) {
serviceType = p->value();
size_t pos = serviceType.find(";");
if (pos != kNotFound)
serviceType = serviceType.left(pos);
}
}
// When OBJECT is used for an applet via Sun's Java plugin, the CODEBASE attribute in the tag
// points to the Java plugin itself (an ActiveX component) while the actual applet CODEBASE is
// in a PARAM tag. See <http://java.sun.com/products/plugin/1.2/docs/tags.html>. This means
// we have to explicitly suppress the tag's CODEBASE attribute if there is none in a PARAM,
// else our Java plugin will misinterpret it. [4004531]
String codebase;
if (MIMETypeRegistry::isJavaAppletMIMEType(serviceType)) {
codebase = "codebase";
uniqueParamNames.add(codebase.impl()); // pretend we found it in a PARAM already
}
// Turn the attributes of the <object> element into arrays, but don't override <param> values.
if (hasAttributes()) {
AttributeCollection attributes = this->attributes();
AttributeCollection::const_iterator end = attributes.end();
for (AttributeCollection::const_iterator it = attributes.begin(); it != end; ++it) {
const AtomicString& name = it->name().localName();
if (!uniqueParamNames.contains(name.impl())) {
paramNames.append(name.string());
paramValues.append(it->value().string());
}
}
}
mapDataParamToSrc(¶mNames, ¶mValues);
// HTML5 says that an object resource's URL is specified by the object's data
// attribute, not by a param element. However, for compatibility, allow the
// resource's URL to be given by a param named "src", "movie", "code" or "url"
// if we know that resource points to a plug-in.
if (url.isEmpty() && !urlParameter.isEmpty()) {
KURL completedURL = document().completeURL(urlParameter);
bool useFallback;
if (shouldUsePlugin(completedURL, serviceType, false, useFallback))
url = urlParameter;
}
}