short V8NodeFilterCondition::acceptNode(ScriptState* state, Node* node) const
{
ASSERT(v8::Context::InContext());
if (!m_filter->IsFunction())
return NodeFilter::FILTER_ACCEPT;
v8::TryCatch exceptionCatcher;
v8::Handle<v8::Object> object = v8::Context::GetCurrent()->Global();
v8::Handle<v8::Function> callback = v8::Handle<v8::Function>::Cast(m_filter);
OwnArrayPtr<v8::Handle<v8::Value> > args(new v8::Handle<v8::Value>[1]);
args[0] = toV8(node);
V8Proxy* proxy = V8Proxy::retrieve();
ASSERT(proxy);
v8::Handle<v8::Value> result = proxy->callFunction(callback, object, 1, args.get());
if (exceptionCatcher.HasCaught()) {
state->setException(exceptionCatcher.Exception());
return NodeFilter::FILTER_REJECT;
}
ASSERT(!result.IsEmpty());
return result->Int32Value();
}
String V8CustomXPathNSResolver::lookupNamespaceURI(const String& prefix)
{
v8::Handle<v8::Function> lookupNamespaceURIFunc;
v8::Handle<v8::String> lookupNamespaceURIName = v8::String::New("lookupNamespaceURI");
// Check if the resolver has a function property named lookupNamespaceURI.
if (m_resolver->Has(lookupNamespaceURIName)) {
v8::Handle<v8::Value> lookupNamespaceURI = m_resolver->Get(lookupNamespaceURIName);
if (lookupNamespaceURI->IsFunction())
lookupNamespaceURIFunc = v8::Handle<v8::Function>::Cast(lookupNamespaceURI);
}
if (lookupNamespaceURIFunc.IsEmpty() && !m_resolver->IsFunction()) {
Frame* frame = V8Proxy::retrieveFrameForEnteredContext();
logInfo(frame, "XPathNSResolver does not have a lookupNamespaceURI method.", String());
return String();
}
// Catch exceptions from calling the namespace resolver.
v8::TryCatch try_catch;
try_catch.SetVerbose(true); // Print exceptions to console.
const int argc = 1;
v8::Handle<v8::Value> argv[argc] = { v8String(prefix) };
v8::Handle<v8::Function> function = lookupNamespaceURIFunc.IsEmpty() ? v8::Handle<v8::Function>::Cast(m_resolver) : lookupNamespaceURIFunc;
V8Proxy* proxy = V8Proxy::retrieve();
v8::Handle<v8::Value> retval = proxy->callFunction(function, m_resolver, argc, argv);
// Eat exceptions from namespace resolver and return an empty string. This will most likely cause NAMESPACE_ERR.
if (try_catch.HasCaught())
return String();
return toWebCoreStringWithNullCheck(retval);
}
// FIXME: Fix it same as _NPN_Invoke (HandleScope and such).
bool _NPN_InvokeDefault(NPP npp, NPObject* npObject, const NPVariant* arguments, uint32_t argumentCount, NPVariant* result)
{
if (!npObject)
return false;
if (npObject->_class != npScriptObjectClass) {
if (npObject->_class->invokeDefault)
return npObject->_class->invokeDefault(npObject, arguments, argumentCount, result);
VOID_TO_NPVARIANT(*result);
return true;
}
V8NPObject* v8NpObject = reinterpret_cast<V8NPObject*>(npObject);
VOID_TO_NPVARIANT(*result);
v8::HandleScope handleScope;
v8::Handle<v8::Context> context = toV8Context(npp, npObject);
if (context.IsEmpty())
return false;
v8::Context::Scope scope(context);
ExceptionCatcher exceptionCatcher;
// Lookup the function object and call it.
v8::Handle<v8::Object> functionObject(v8NpObject->v8Object);
if (!functionObject->IsFunction())
return false;
v8::Local<v8::Value> resultObject;
v8::Handle<v8::Function> function(v8::Function::Cast(*functionObject));
if (!function->IsNull()) {
V8Proxy* proxy = toV8Proxy(npObject);
ASSERT(proxy);
OwnArrayPtr<v8::Handle<v8::Value> > argv(createValueListFromVariantArgs(arguments, argumentCount, npObject));
resultObject = proxy->callFunction(function, functionObject, argumentCount, argv.get());
}
// If we had an error, return false. The spec is a little unclear here, but says "Returns true if the method was
// successfully invoked". If we get an error return value, was that successfully invoked?
if (resultObject.IsEmpty())
return false;
convertV8ObjectToNPVariant(resultObject, npObject, result);
return true;
}
bool _NPN_Invoke(NPP npp, NPObject* npObject, NPIdentifier methodName, const NPVariant* arguments, uint32_t argumentCount, NPVariant* result)
{
if (!npObject)
return false;
if (npObject->_class != npScriptObjectClass) {
if (npObject->_class->invoke)
return npObject->_class->invoke(npObject, methodName, arguments, argumentCount, result);
VOID_TO_NPVARIANT(*result);
return true;
}
V8NPObject* v8NpObject = reinterpret_cast<V8NPObject*>(npObject);
PrivateIdentifier* identifier = static_cast<PrivateIdentifier*>(methodName);
if (!identifier->isString)
return false;
v8::HandleScope handleScope;
// FIXME: should use the plugin's owner frame as the security context.
v8::Handle<v8::Context> context = toV8Context(npp, npObject);
if (context.IsEmpty())
return false;
v8::Context::Scope scope(context);
if (methodName == _NPN_GetStringIdentifier("eval")) {
if (argumentCount != 1)
return false;
if (arguments[0].type != NPVariantType_String)
return false;
return _NPN_Evaluate(npp, npObject, const_cast<NPString*>(&arguments[0].value.stringValue), result);
}
v8::Handle<v8::Value> functionObject = v8NpObject->v8Object->Get(v8::String::New(identifier->value.string));
if (functionObject.IsEmpty() || functionObject->IsNull()) {
NULL_TO_NPVARIANT(*result);
return false;
}
if (functionObject->IsUndefined()) {
VOID_TO_NPVARIANT(*result);
return false;
}
V8Proxy* proxy = toV8Proxy(npObject);
ASSERT(proxy);
// Call the function object.
v8::Handle<v8::Function> function = v8::Handle<v8::Function>::Cast(functionObject);
OwnArrayPtr<v8::Handle<v8::Value> > argv(createValueListFromVariantArgs(arguments, argumentCount, npObject));
v8::Local<v8::Value> resultObject = proxy->callFunction(function, v8NpObject->v8Object, argumentCount, argv.get());
// If we had an error, return false. The spec is a little unclear here, but says "Returns true if the method was
// successfully invoked". If we get an error return value, was that successfully invoked?
if (resultObject.IsEmpty())
return false;
convertV8ObjectToNPVariant(resultObject, npObject, result);
return true;
}