void RenderPartObject::updateWidget()
{
String url;
String serviceType;
Vector<String> paramNames;
Vector<String> paramValues;
Frame* frame = m_view->frame();
setNeedsLayoutAndMinMaxRecalc();
if (element()->hasTagName(objectTag)) {
HTMLObjectElement* o = static_cast<HTMLObjectElement*>(element());
if (!o->isComplete())
return;
// Check for a child EMBED tag.
HTMLEmbedElement* embed = 0;
for (Node* child = o->firstChild(); child;) {
if (child->hasTagName(embedTag)) {
embed = static_cast<HTMLEmbedElement*>(child);
break;
} else if (child->hasTagName(objectTag))
child = child->nextSibling(); // Don't descend into nested OBJECT tags
else
child = child->traverseNextNode(o); // Otherwise descend (EMBEDs may be inside COMMENT tags)
}
// Use the attributes from the EMBED tag instead of the OBJECT tag including WIDTH and HEIGHT.
HTMLElement *embedOrObject;
if (embed) {
embedOrObject = (HTMLElement *)embed;
String attribute = embedOrObject->getAttribute(widthAttr);
if (!attribute.isEmpty())
o->setAttribute(widthAttr, attribute);
attribute = embedOrObject->getAttribute(heightAttr);
if (!attribute.isEmpty())
o->setAttribute(heightAttr, attribute);
url = embed->url;
serviceType = embed->serviceType;
} else
embedOrObject = (HTMLElement *)o;
// If there was no URL or type defined in EMBED, try the OBJECT tag.
if (url.isEmpty())
url = o->url;
if (serviceType.isEmpty())
serviceType = o->serviceType;
HashSet<StringImpl*, CaseInsensitiveHash> uniqueParamNames;
// Scan the PARAM children.
// Get the URL and type from the params if we don't already have them.
// Get the attributes from the params if there is no EMBED tag.
Node *child = o->firstChild();
while (child && (url.isEmpty() || serviceType.isEmpty() || !embed)) {
if (child->hasTagName(paramTag)) {
HTMLParamElement* p = static_cast<HTMLParamElement*>(child);
String name = p->name().lower();
if (url.isEmpty() && (name == "src" || name == "movie" || name == "code" || name == "url"))
url = p->value();
if (serviceType.isEmpty() && name == "type") {
serviceType = p->value();
int pos = serviceType.find(";");
if (pos != -1)
serviceType = serviceType.left(pos);
}
if (!embed && !name.isEmpty()) {
uniqueParamNames.add(p->name().impl());
paramNames.append(p->name());
paramValues.append(p->value());
}
}
child = child->nextSibling();
}
// 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 (!embed && serviceType.lower() == "application/x-java-applet") {
codebase = "codebase";
uniqueParamNames.add(codebase.impl()); // pretend we found it in a PARAM already
}
// Turn the attributes of either the EMBED tag or OBJECT tag into arrays, but don't override PARAM values.
NamedAttrMap* attributes = embedOrObject->attributes();
if (attributes) {
for (unsigned i = 0; i < attributes->length(); ++i) {
Attribute* it = attributes->attributeItem(i);
const AtomicString& name = it->name().localName();
if (embed || !uniqueParamNames.contains(name.impl())) {
paramNames.append(name.domString());
paramValues.append(it->value().domString());
}
}
}
// If we still don't have a type, try to map from a specific CLASSID to a type.
if (serviceType.isEmpty() && !o->classId.isEmpty())
mapClassIdToServiceType(o->classId, serviceType);
// If no URL and type, abort.
if (url.isEmpty() && serviceType.isEmpty())
return;
if (!isURLAllowed(document(), url))
return;
// Find out if we support fallback content.
m_hasFallbackContent = false;
for (Node *child = o->firstChild(); child && !m_hasFallbackContent; child = child->nextSibling()) {
if ((!child->isTextNode() && !child->hasTagName(embedTag) && !child->hasTagName(paramTag)) || // Discount <embed> and <param>
(child->isTextNode() && !static_cast<Text*>(child)->containsOnlyWhitespace()))
m_hasFallbackContent = true;
}
bool success = frame->requestObject(this, url, AtomicString(o->name()), serviceType, paramNames, paramValues);
if (!success && m_hasFallbackContent)
o->renderFallbackContent();
} else if (element()->hasTagName(embedTag)) {
HTMLEmbedElement *o = static_cast<HTMLEmbedElement*>(element());
url = o->url;
serviceType = o->serviceType;
if (url.isEmpty() && serviceType.isEmpty())
return;
if (!isURLAllowed(document(), url))
return;
// add all attributes set on the embed object
NamedAttrMap* a = o->attributes();
if (a) {
for (unsigned i = 0; i < a->length(); ++i) {
Attribute* it = a->attributeItem(i);
paramNames.append(it->name().localName().domString());
paramValues.append(it->value().domString());
}
}
frame->requestObject(this, url, o->getAttribute(nameAttr), serviceType, paramNames, paramValues);
}
}
