1 files changed, 495 insertions, 0 deletions
diff --git a/webkit/port/bindings/v8/NPV8Object.cpp b/webkit/port/bindings/v8/NPV8Object.cpp
new file mode 100644
index 0000000..829fd074
--- /dev/null
+++ b/webkit/port/bindings/v8/NPV8Object.cpp
@@ -0,0 +1,495 @@
+/*
+ * Copyright (C) 2004, 2006 Apple Computer, Inc.  All rights reserved.
+ * Copyright (C) 2007-2009 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 <stdio.h>
+
+#define max max
+#define min min
+#include <v8.h>
+#include "NPV8Object.h"
+#include "ChromiumBridge.h"
+#include "Frame.h"
+#include "bindings/npruntime.h"
+#include "npruntime_priv.h"
+#include "PlatformString.h"
+#include "ScriptController.h"
+#include "v8_custom.h"
+#include "v8_helpers.h"
+#include "V8NPUtils.h"
+#include "v8_proxy.h"
+#include "DOMWindow.h"
+
+using WebCore::V8ClassIndex;
+using WebCore::V8Custom;
+using WebCore::V8Proxy;
+
+// FIXME(mbelshe): comments on why use malloc and free.
+static NPObject* AllocV8NPObject(NPP, NPClass*)
+{
+    return static_cast<NPObject*>(malloc(sizeof(V8NPObject)));
+}
+
+static void FreeV8NPObject(NPObject* npobj)
+{
+    V8NPObject *object = reinterpret_cast<V8NPObject*>(npobj);
+#ifndef NDEBUG
+    V8Proxy::UnregisterGlobalHandle(object, object->v8Object);
+#endif
+    object->v8Object.Dispose();
+    free(object);
+}
+
+static v8::Handle<v8::Value>* listFromVariantArgs(const NPVariant* args,
+                                                  uint32_t argCount,
+                                                  NPObject *owner)
+{
+    v8::Handle<v8::Value>* argv = new v8::Handle<v8::Value>[argCount];
+    for (uint32_t index = 0; index < argCount; index++) {
+        const NPVariant *arg = &args[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 buf[32];
+    sprintf(buf, "%d", identifier->value.number);
+    return v8::String::New(buf);
+}
+
+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, WebCore::DOMWindow* root)
+{
+    // Check to see if this object is already wrapped.
+    if (object->InternalFieldCount() == V8Custom::kNPObjectInternalFieldCount &&
+        object->GetInternalField(V8Custom::kDOMWrapperTypeIndex)->IsNumber() &&
+        object->GetInternalField(V8Custom::kDOMWrapperTypeIndex)->Uint32Value() == V8ClassIndex::NPOBJECT) {
+
+        NPObject* rv = V8Proxy::ToNativeObject<NPObject>(V8ClassIndex::NPOBJECT, object);
+        NPN_RetainObject(rv);
+        return rv;
+    }
+
+    V8NPObject* obj = reinterpret_cast<V8NPObject*>(NPN_CreateObject(npp, &V8NPObjectClass));
+    obj->v8Object = v8::Persistent<v8::Object>::New(object);
+#ifndef NDEBUG
+    V8Proxy::RegisterGlobalHandle(WebCore::NPOBJECT, obj, obj->v8Object);
+#endif
+    obj->rootObject = root;
+    return reinterpret_cast<NPObject*>(obj);
+}
+
+bool NPN_Invoke(NPP npp, NPObject *npobj, NPIdentifier methodName,
+                const NPVariant *args, uint32_t argCount, NPVariant *result)
+{
+    if (!npobj)
+        return false;
+
+    if (npobj->_class == npScriptObjectClass) {
+        V8NPObject *object = reinterpret_cast<V8NPObject*>(npobj);
+
+        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 = getV8Context(npp, npobj);
+        if (context.IsEmpty())
+            return false;
+
+        v8::Context::Scope scope(context);
+
+        // Special case the "eval" method.
+        if (methodName == NPN_GetStringIdentifier("eval")) {
+          if (argCount != 1)
+              return false;
+          if (args[0].type != NPVariantType_String)
+              return false;
+          return NPN_Evaluate(npp, npobj, const_cast<NPString*>(&args[0].value.stringValue), result);
+        }
+
+        v8::Handle<v8::Value> funcObj = object->v8Object->Get(v8::String::New(identifier->value.string));
+        if (funcObj.IsEmpty() || funcObj->IsNull()) {
+            NULL_TO_NPVARIANT(*result);
+            return false;
+        }
+        if (funcObj->IsUndefined()) {
+            VOID_TO_NPVARIANT(*result);
+            return false;
+        }
+
+        WebCore::V8Proxy* proxy = GetV8Proxy(npobj);
+        ASSERT(proxy);  // must not be null
+
+        // FIXME: fix variable naming
+        // Call the function object
+        v8::Handle<v8::Function> func = v8::Handle<v8::Function>::Cast(funcObj);
+        // Create list of args to pass to v8
+        v8::Handle<v8::Value>* argv = listFromVariantArgs(args, argCount, npobj);
+        v8::Local<v8::Value> resultObj = proxy->CallFunction(func, object->v8Object, argCount, argv);
+        delete[] argv;
+
+        // 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 (resultObj.IsEmpty())
+            return false;
+
+        // Convert the result back to an NPVariant
+        convertV8ObjectToNPVariant(resultObj, npobj, result);
+        return true;
+    }
+
+    if (npobj->_class->invoke)
+        return npobj->_class->invoke(npobj, methodName, args, argCount, result);
+
+    VOID_TO_NPVARIANT(*result);
+    return true;
+}
+
+// FIXME: Fix it same as NPN_Invoke (HandleScope and such)
+bool NPN_InvokeDefault(NPP npp, NPObject *npobj, const NPVariant *args,
+                       uint32_t argCount, NPVariant *result)
+{
+    if (!npobj)
+        return false;
+
+    if (npobj->_class == npScriptObjectClass) {
+        V8NPObject *object = reinterpret_cast<V8NPObject*>(npobj);
+
+        VOID_TO_NPVARIANT(*result);
+
+        v8::HandleScope handleScope;
+        v8::Handle<v8::Context> context = getV8Context(npp, npobj);
+        if (context.IsEmpty())
+            return false;
+
+        v8::Context::Scope scope(context);
+
+        // Lookup the function object
+        v8::Handle<v8::Object> funcObj(object->v8Object);
+        if (!funcObj->IsFunction())
+            return false;
+
+        // Call the function object
+        v8::Local<v8::Value> resultObj;
+        v8::Handle<v8::Function> func(v8::Function::Cast(*funcObj));
+        if (!func->IsNull()) {
+            WebCore::V8Proxy* proxy = GetV8Proxy(npobj);
+            ASSERT(proxy);
+
+            // Create list of args to pass to v8
+            v8::Handle<v8::Value>* argv = listFromVariantArgs(args, argCount, npobj);
+            resultObj = proxy->CallFunction(func, funcObj, argCount, argv);
+            delete[] argv;
+        }
+
+        // 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 (resultObj.IsEmpty())
+            return false;
+
+        // Convert the result back to an NPVariant.
+        convertV8ObjectToNPVariant(resultObj, npobj, result);
+        return true;
+    }
+
+    if (npobj->_class->invokeDefault)
+        return npobj->_class->invokeDefault(npobj, args, argCount, result);
+
+    VOID_TO_NPVARIANT(*result);
+    return true;
+}
+
+bool NPN_Evaluate(NPP npp, NPObject *npobj, NPString *npscript, NPVariant *result)
+{
+    bool popupsAllowed = WebCore::ChromiumBridge::popupsAllowed(npp);
+    return NPN_EvaluateHelper(npp, popupsAllowed, npobj, npscript, result);
+}
+
+bool NPN_EvaluateHelper(NPP npp, bool popupsAllowed, NPObject* npobj, NPString* npscript, NPVariant *result)
+{
+    VOID_TO_NPVARIANT(*result);
+    if (!npobj)
+        return false;
+
+    if (npobj->_class != npScriptObjectClass)
+        return false;
+
+    v8::HandleScope handleScope;
+    v8::Handle<v8::Context> context = getV8Context(npp, npobj);
+    if (context.IsEmpty())
+        return false;
+
+    WebCore::V8Proxy* proxy = GetV8Proxy(npobj);
+    ASSERT(proxy);
+
+    v8::Context::Scope scope(context);
+
+    WebCore::String filename;
+    if (!popupsAllowed)
+        filename = "npscript";
+
+    // Convert UTF-8 stream to WebCore::String.
+    WebCore::String script = WebCore::String::fromUTF8(npscript->UTF8Characters, npscript->UTF8Length);
+    v8::Local<v8::Value> v8result = proxy->Evaluate(filename, 0, script, 0);
+
+    // If we had an error, return false.
+    if (v8result.IsEmpty())
+        return false;
+
+    convertV8ObjectToNPVariant(v8result, npobj, result);
+    return true;
+}
+
+bool NPN_GetProperty(NPP npp, NPObject *npobj, NPIdentifier propertyName, NPVariant *result)
+{
+    if (!npobj)
+        return false;
+
+    if (npobj->_class == npScriptObjectClass) {
+        V8NPObject *object = reinterpret_cast<V8NPObject*>(npobj);
+
+        v8::HandleScope handleScope;
+        v8::Handle<v8::Context> context = getV8Context(npp, npobj);
+        if (context.IsEmpty())
+            return false;
+
+        v8::Context::Scope scope(context);
+
+        v8::Handle<v8::Object> obj(object->v8Object);
+        v8::Local<v8::Value> v8result = obj->Get(NPIdentifierToV8Identifier(propertyName));
+
+        convertV8ObjectToNPVariant(v8result, npobj, result);
+        return true;
+    }
+
+    if (npobj->_class->hasProperty && npobj->_class->getProperty) {
+        if (npobj->_class->hasProperty(npobj, propertyName))
+            return npobj->_class->getProperty(npobj, propertyName, result);
+    }
+
+    VOID_TO_NPVARIANT(*result);
+    return false;
+}
+
+bool NPN_SetProperty(NPP npp, NPObject *npobj, NPIdentifier propertyName, const NPVariant *value)
+{
+    if (!npobj)
+        return false;
+
+    if (npobj->_class == npScriptObjectClass) {
+        V8NPObject *object = reinterpret_cast<V8NPObject*>(npobj);
+
+        v8::HandleScope handleScope;
+        v8::Handle<v8::Context> context = getV8Context(npp, npobj);
+        if (context.IsEmpty())
+            return false;
+
+        v8::Context::Scope scope(context);
+
+        v8::Handle<v8::Object> obj(object->v8Object);
+        obj->Set(NPIdentifierToV8Identifier(propertyName),
+                 convertNPVariantToV8Object(value, object->rootObject->frame()->script()->windowScriptNPObject()));
+        return true;
+    }
+
+    if (npobj->_class->setProperty)
+        return npobj->_class->setProperty(npobj, propertyName, value);
+
+    return false;
+}
+
+bool NPN_RemoveProperty(NPP npp, NPObject *npobj, NPIdentifier propertyName)
+{
+    if (!npobj)
+        return false;
+    if (npobj->_class != npScriptObjectClass)
+        return false;
+
+    V8NPObject *object = reinterpret_cast<V8NPObject*>(npobj);
+
+    v8::HandleScope handleScope;
+    v8::Handle<v8::Context> context = getV8Context(npp, npobj);
+    if (context.IsEmpty())
+        return false;
+    v8::Context::Scope scope(context);
+
+    v8::Handle<v8::Object> obj(object->v8Object);
+    // FIXME(mbelshe) - verify that setting to undefined is right.
+    obj->Set(NPIdentifierToV8Identifier(propertyName), v8::Undefined());
+    return true;
+}
+
+bool NPN_HasProperty(NPP npp, NPObject *npobj, NPIdentifier propertyName)
+{
+    if (!npobj)
+        return false;
+
+    if (npobj->_class == npScriptObjectClass) {
+        V8NPObject *object = reinterpret_cast<V8NPObject*>(npobj);
+
+        v8::HandleScope handleScope;
+        v8::Handle<v8::Context> context = getV8Context(npp, npobj);
+        if (context.IsEmpty())
+            return false;
+        v8::Context::Scope scope(context);
+
+        v8::Handle<v8::Object> obj(object->v8Object);
+        return obj->Has(NPIdentifierToV8Identifier(propertyName));
+    }
+
+    if (npobj->_class->hasProperty)
+        return npobj->_class->hasProperty(npobj, propertyName);
+    return false;
+}
+
+bool NPN_HasMethod(NPP npp, NPObject *npobj, NPIdentifier methodName)
+{
+    if (!npobj)
+        return false;
+
+    if (npobj->_class == npScriptObjectClass) {
+        V8NPObject *object = reinterpret_cast<V8NPObject*>(npobj);
+
+        v8::HandleScope handleScope;
+        v8::Handle<v8::Context> context = getV8Context(npp, npobj);
+        if (context.IsEmpty())
+            return false;
+        v8::Context::Scope scope(context);
+
+        v8::Handle<v8::Object> obj(object->v8Object);
+        v8::Handle<v8::Value> prop = obj->Get(NPIdentifierToV8Identifier(methodName));
+        return prop->IsFunction();
+    }
+
+    if (npobj->_class->hasMethod)
+        return npobj->_class->hasMethod(npobj, methodName);
+    return false;
+}
+
+void NPN_SetException(NPObject *npobj, const NPUTF8 *message)
+{
+    if (npobj->_class != npScriptObjectClass)
+        return;
+    v8::HandleScope handleScope;
+    v8::Handle<v8::Context> context = getV8Context(0, npobj);
+    if (context.IsEmpty())
+        return;
+
+    v8::Context::Scope scope(context);
+    V8Proxy::ThrowError(V8Proxy::GENERAL_ERROR, message);
+}
+
+bool NPN_Enumerate(NPP npp, NPObject *npobj, NPIdentifier **identifier, uint32_t *count)
+{
+    if (!npobj)
+        return false;
+
+    if (npobj->_class == npScriptObjectClass) {
+        V8NPObject *object = reinterpret_cast<V8NPObject*>(npobj);
+
+        v8::HandleScope handleScope;
+        v8::Handle<v8::Context> context = getV8Context(npp, npobj);
+        if (context.IsEmpty())
+            return false;
+        v8::Context::Scope scope(context);
+
+        v8::Handle<v8::Object> obj(object->v8Object);
+
+        // FIXME(fqian): http://b/issue?id=1210340: Use a v8::Object::Keys() method
+        // when it exists, instead of evaluating javascript.
+
+        // FIXME(mpcomplete): 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(npobj->_class) && npobj->_class->enumerate)
+       return npobj->_class->enumerate(npobj, identifier, count);
+
+    return false;
+}
+
+bool NPN_Construct(NPP npp, NPObject* npobj, const NPVariant* args, uint32_t argCount, NPVariant* result)
+{
+    if (!npobj)
+        return false;
+
+    // FIXME(estade): implement this case.
+    if (npobj->_class == npScriptObjectClass) {
+        VOID_TO_NPVARIANT(*result);
+        return false;
+    }
+
+    if (NP_CLASS_STRUCT_VERSION_HAS_CTOR(npobj->_class) && npobj->_class->construct)
+        return npobj->_class->construct(npobj, args, argCount, result);
+
+    return false;
+}