--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/WebCore/bindings/v8/NPV8Object.cpp Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,541 @@
+/*
+ * Copyright (C) 2004, 2006 Apple Computer, Inc. All rights reserved.
+ * Copyright (C) 2007, 2008, 2009 Google, Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "config.h"
+
+#include "NPV8Object.h"
+
+#include "PlatformBridge.h"
+#include "DOMWindow.h"
+#include "Frame.h"
+#include "OwnArrayPtr.h"
+#include "PlatformString.h"
+#include "ScriptController.h"
+#include "V8GCController.h"
+#include "V8Helpers.h"
+#include "V8NPUtils.h"
+#include "V8Proxy.h"
+#include "WrapperTypeInfo.h"
+#include "npruntime_impl.h"
+#include "npruntime_priv.h"
+
+#if PLATFORM(CHROMIUM)
+#include <bindings/npruntime.h>
+#else
+#include "npruntime.h"
+#endif
+
+#include <stdio.h>
+#include <wtf/StringExtras.h>
+
+using namespace WebCore;
+
+namespace WebCore {
+
+WrapperTypeInfo* npObjectTypeInfo()
+{
+ static WrapperTypeInfo typeInfo = { 0, 0, 0 };
+ return &typeInfo;
+}
+
+// FIXME: Comments on why use malloc and free.
+static NPObject* allocV8NPObject(NPP, NPClass*)
+{
+ return static_cast<NPObject*>(malloc(sizeof(V8NPObject)));
+}
+
+static void freeV8NPObject(NPObject* npObject)
+{
+ V8NPObject* v8NpObject = reinterpret_cast<V8NPObject*>(npObject);
+#ifndef NDEBUG
+ V8GCController::unregisterGlobalHandle(v8NpObject, v8NpObject->v8Object);
+#endif
+ v8NpObject->v8Object.Dispose();
+ free(v8NpObject);
+}
+
+static v8::Handle<v8::Value>* createValueListFromVariantArgs(const NPVariant* arguments, uint32_t argumentCount, NPObject* owner)
+{
+ v8::Handle<v8::Value>* argv = new v8::Handle<v8::Value>[argumentCount];
+ for (uint32_t index = 0; index < argumentCount; index++) {
+ const NPVariant* arg = &arguments[index];
+ argv[index] = convertNPVariantToV8Object(arg, owner);
+ }
+ return argv;
+}
+
+// Create an identifier (null terminated utf8 char*) from the NPIdentifier.
+static v8::Local<v8::String> npIdentifierToV8Identifier(NPIdentifier name)
+{
+ PrivateIdentifier* identifier = static_cast<PrivateIdentifier*>(name);
+ if (identifier->isString)
+ return v8::String::New(static_cast<const char*>(identifier->value.string));
+
+ char buffer[32];
+ snprintf(buffer, sizeof(buffer), "%d", identifier->value.number);
+ return v8::String::New(buffer);
+}
+
+NPObject* v8ObjectToNPObject(v8::Handle<v8::Object> object)
+{
+ return reinterpret_cast<NPObject*>(object->GetPointerFromInternalField(v8DOMWrapperObjectIndex));
+}
+
+static NPClass V8NPObjectClass = { NP_CLASS_STRUCT_VERSION,
+ allocV8NPObject,
+ freeV8NPObject,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0 };
+
+// NPAPI's npruntime functions.
+NPClass* npScriptObjectClass = &V8NPObjectClass;
+
+NPObject* npCreateV8ScriptObject(NPP npp, v8::Handle<v8::Object> object, DOMWindow* root)
+{
+ // Check to see if this object is already wrapped.
+ if (object->InternalFieldCount() == npObjectInternalFieldCount) {
+ WrapperTypeInfo* typeInfo = static_cast<WrapperTypeInfo*>(object->GetPointerFromInternalField(v8DOMWrapperTypeIndex));
+ if (typeInfo == npObjectTypeInfo()) {
+
+ NPObject* returnValue = v8ObjectToNPObject(object);
+ _NPN_RetainObject(returnValue);
+ return returnValue;
+ }
+ }
+
+ V8NPObject* v8npObject = reinterpret_cast<V8NPObject*>(_NPN_CreateObject(npp, &V8NPObjectClass));
+ v8npObject->v8Object = v8::Persistent<v8::Object>::New(object);
+#ifndef NDEBUG
+ V8GCController::registerGlobalHandle(NPOBJECT, v8npObject, v8npObject->v8Object);
+#endif
+ v8npObject->rootObject = root;
+ return reinterpret_cast<NPObject*>(v8npObject);
+}
+
+} // namespace WebCore
+
+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;
+
+ if (!strcmp(identifier->value.string, "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::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);
+ ExceptionCatcher exceptionCatcher;
+
+ 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;
+}
+
+// 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_Evaluate(NPP npp, NPObject* npObject, NPString* npScript, NPVariant* result)
+{
+ bool popupsAllowed = PlatformBridge::popupsAllowed(npp);
+ return _NPN_EvaluateHelper(npp, popupsAllowed, npObject, npScript, result);
+}
+
+bool _NPN_EvaluateHelper(NPP npp, bool popupsAllowed, NPObject* npObject, NPString* npScript, NPVariant* result)
+{
+ VOID_TO_NPVARIANT(*result);
+ if (!npObject)
+ return false;
+
+ if (npObject->_class != npScriptObjectClass)
+ return false;
+
+ v8::HandleScope handleScope;
+ v8::Handle<v8::Context> context = toV8Context(npp, npObject);
+ if (context.IsEmpty())
+ return false;
+
+ V8Proxy* proxy = toV8Proxy(npObject);
+ ASSERT(proxy);
+
+ v8::Context::Scope scope(context);
+ ExceptionCatcher exceptionCatcher;
+
+ String filename;
+ if (!popupsAllowed)
+ filename = "npscript";
+
+ String script = String::fromUTF8(npScript->UTF8Characters, npScript->UTF8Length);
+ v8::Local<v8::Value> v8result = proxy->evaluate(ScriptSourceCode(script, KURL(ParsedURLString, filename)), 0);
+
+ if (v8result.IsEmpty())
+ return false;
+
+ convertV8ObjectToNPVariant(v8result, npObject, result);
+ return true;
+}
+
+bool _NPN_GetProperty(NPP npp, NPObject* npObject, NPIdentifier propertyName, NPVariant* result)
+{
+ if (!npObject)
+ return false;
+
+ if (npObject->_class == npScriptObjectClass) {
+ V8NPObject* object = reinterpret_cast<V8NPObject*>(npObject);
+
+ v8::HandleScope handleScope;
+ v8::Handle<v8::Context> context = toV8Context(npp, npObject);
+ if (context.IsEmpty())
+ return false;
+
+ v8::Context::Scope scope(context);
+ ExceptionCatcher exceptionCatcher;
+
+ v8::Handle<v8::Object> obj(object->v8Object);
+ v8::Local<v8::Value> v8result = obj->Get(npIdentifierToV8Identifier(propertyName));
+
+ if (v8result.IsEmpty())
+ return false;
+
+ convertV8ObjectToNPVariant(v8result, npObject, result);
+ return true;
+ }
+
+ if (npObject->_class->hasProperty && npObject->_class->getProperty) {
+ if (npObject->_class->hasProperty(npObject, propertyName))
+ return npObject->_class->getProperty(npObject, propertyName, result);
+ }
+
+ VOID_TO_NPVARIANT(*result);
+ return false;
+}
+
+bool _NPN_SetProperty(NPP npp, NPObject* npObject, NPIdentifier propertyName, const NPVariant* value)
+{
+ if (!npObject)
+ return false;
+
+ if (npObject->_class == npScriptObjectClass) {
+ V8NPObject* object = reinterpret_cast<V8NPObject*>(npObject);
+
+ v8::HandleScope handleScope;
+ v8::Handle<v8::Context> context = toV8Context(npp, npObject);
+ if (context.IsEmpty())
+ return false;
+
+ v8::Context::Scope scope(context);
+ ExceptionCatcher exceptionCatcher;
+
+ v8::Handle<v8::Object> obj(object->v8Object);
+ obj->Set(npIdentifierToV8Identifier(propertyName),
+ convertNPVariantToV8Object(value, object->rootObject->frame()->script()->windowScriptNPObject()));
+ return true;
+ }
+
+ if (npObject->_class->setProperty)
+ return npObject->_class->setProperty(npObject, propertyName, value);
+
+ return false;
+}
+
+bool _NPN_RemoveProperty(NPP npp, NPObject* npObject, NPIdentifier propertyName)
+{
+ if (!npObject)
+ return false;
+ if (npObject->_class != npScriptObjectClass)
+ return false;
+
+ V8NPObject* object = reinterpret_cast<V8NPObject*>(npObject);
+
+ v8::HandleScope handleScope;
+ v8::Handle<v8::Context> context = toV8Context(npp, npObject);
+ if (context.IsEmpty())
+ return false;
+ v8::Context::Scope scope(context);
+ ExceptionCatcher exceptionCatcher;
+
+ v8::Handle<v8::Object> obj(object->v8Object);
+ // FIXME: Verify that setting to undefined is right.
+ obj->Set(npIdentifierToV8Identifier(propertyName), v8::Undefined());
+ return true;
+}
+
+bool _NPN_HasProperty(NPP npp, NPObject* npObject, NPIdentifier propertyName)
+{
+ if (!npObject)
+ return false;
+
+ if (npObject->_class == npScriptObjectClass) {
+ V8NPObject* object = reinterpret_cast<V8NPObject*>(npObject);
+
+ v8::HandleScope handleScope;
+ v8::Handle<v8::Context> context = toV8Context(npp, npObject);
+ if (context.IsEmpty())
+ return false;
+ v8::Context::Scope scope(context);
+ ExceptionCatcher exceptionCatcher;
+
+ v8::Handle<v8::Object> obj(object->v8Object);
+ return obj->Has(npIdentifierToV8Identifier(propertyName));
+ }
+
+ if (npObject->_class->hasProperty)
+ return npObject->_class->hasProperty(npObject, propertyName);
+ return false;
+}
+
+bool _NPN_HasMethod(NPP npp, NPObject* npObject, NPIdentifier methodName)
+{
+ if (!npObject)
+ return false;
+
+ if (npObject->_class == npScriptObjectClass) {
+ V8NPObject* object = reinterpret_cast<V8NPObject*>(npObject);
+
+ v8::HandleScope handleScope;
+ v8::Handle<v8::Context> context = toV8Context(npp, npObject);
+ if (context.IsEmpty())
+ return false;
+ v8::Context::Scope scope(context);
+ ExceptionCatcher exceptionCatcher;
+
+ v8::Handle<v8::Object> obj(object->v8Object);
+ v8::Handle<v8::Value> prop = obj->Get(npIdentifierToV8Identifier(methodName));
+ return prop->IsFunction();
+ }
+
+ if (npObject->_class->hasMethod)
+ return npObject->_class->hasMethod(npObject, methodName);
+ return false;
+}
+
+void _NPN_SetException(NPObject* npObject, const NPUTF8 *message)
+{
+ if (!npObject || npObject->_class != npScriptObjectClass) {
+ // We won't be able to find a proper scope for this exception, so just throw it.
+ // This is consistent with JSC, which throws a global exception all the time.
+ V8Proxy::throwError(V8Proxy::GeneralError, message);
+ return;
+ }
+ v8::HandleScope handleScope;
+ v8::Handle<v8::Context> context = toV8Context(0, npObject);
+ if (context.IsEmpty())
+ return;
+
+ v8::Context::Scope scope(context);
+ ExceptionCatcher exceptionCatcher;
+
+ V8Proxy::throwError(V8Proxy::GeneralError, message);
+}
+
+bool _NPN_Enumerate(NPP npp, NPObject* npObject, NPIdentifier** identifier, uint32_t* count)
+{
+ if (!npObject)
+ return false;
+
+ if (npObject->_class == npScriptObjectClass) {
+ V8NPObject* object = reinterpret_cast<V8NPObject*>(npObject);
+
+ v8::HandleScope handleScope;
+ v8::Handle<v8::Context> context = toV8Context(npp, npObject);
+ if (context.IsEmpty())
+ return false;
+ v8::Context::Scope scope(context);
+ ExceptionCatcher exceptionCatcher;
+
+ v8::Handle<v8::Object> obj(object->v8Object);
+
+ // FIXME: http://b/issue?id=1210340: Use a v8::Object::Keys() method when it exists, instead of evaluating javascript.
+
+ // FIXME: Figure out how to cache this helper function. Run a helper function that collects the properties
+ // on the object into an array.
+ const char enumeratorCode[] =
+ "(function (obj) {"
+ " var props = [];"
+ " for (var prop in obj) {"
+ " props[props.length] = prop;"
+ " }"
+ " return props;"
+ "});";
+ v8::Handle<v8::String> source = v8::String::New(enumeratorCode);
+ v8::Handle<v8::Script> script = v8::Script::Compile(source, 0);
+ v8::Handle<v8::Value> enumeratorObj = script->Run();
+ v8::Handle<v8::Function> enumerator = v8::Handle<v8::Function>::Cast(enumeratorObj);
+ v8::Handle<v8::Value> argv[] = { obj };
+ v8::Local<v8::Value> propsObj = enumerator->Call(v8::Handle<v8::Object>::Cast(enumeratorObj), ARRAYSIZE_UNSAFE(argv), argv);
+ if (propsObj.IsEmpty())
+ return false;
+
+ // Convert the results into an array of NPIdentifiers.
+ v8::Handle<v8::Array> props = v8::Handle<v8::Array>::Cast(propsObj);
+ *count = props->Length();
+ *identifier = static_cast<NPIdentifier*>(malloc(sizeof(NPIdentifier*) * *count));
+ for (uint32_t i = 0; i < *count; ++i) {
+ v8::Local<v8::Value> name = props->Get(v8::Integer::New(i));
+ (*identifier)[i] = getStringIdentifier(v8::Local<v8::String>::Cast(name));
+ }
+ return true;
+ }
+
+ if (NP_CLASS_STRUCT_VERSION_HAS_ENUM(npObject->_class) && npObject->_class->enumerate)
+ return npObject->_class->enumerate(npObject, identifier, count);
+
+ return false;
+}
+
+bool _NPN_Construct(NPP npp, NPObject* npObject, const NPVariant* arguments, uint32_t argumentCount, NPVariant* result)
+{
+ if (!npObject)
+ return false;
+
+ if (npObject->_class == npScriptObjectClass) {
+ V8NPObject* object = reinterpret_cast<V8NPObject*>(npObject);
+
+ 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 constructor function.
+ v8::Handle<v8::Object> ctorObj(object->v8Object);
+ if (!ctorObj->IsFunction())
+ return false;
+
+ // Call the constructor.
+ v8::Local<v8::Value> resultObject;
+ v8::Handle<v8::Function> ctor(v8::Function::Cast(*ctorObj));
+ if (!ctor->IsNull()) {
+ V8Proxy* proxy = toV8Proxy(npObject);
+ ASSERT(proxy);
+
+ OwnArrayPtr<v8::Handle<v8::Value> > argv(createValueListFromVariantArgs(arguments, argumentCount, npObject));
+ resultObject = proxy->newInstance(ctor, argumentCount, argv.get());
+ }
+
+ if (resultObject.IsEmpty())
+ return false;
+
+ convertV8ObjectToNPVariant(resultObject, npObject, result);
+ return true;
+ }
+
+ if (NP_CLASS_STRUCT_VERSION_HAS_CTOR(npObject->_class) && npObject->_class->construct)
+ return npObject->_class->construct(npObject, arguments, argumentCount, result);
+
+ return false;
+}