diff -r 000000000000 -r 4f2f89ce4247 WebKit2/WebProcess/Plugins/NPJSObjectMap.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WebKit2/WebProcess/Plugins/NPJSObjectMap.cpp	Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,216 @@
+/*
+ * Copyright (C) 2010 Apple 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 INC. AND ITS CONTRIBUTORS ``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 INC. OR ITS 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 "NPJSObjectMap.h"
+
+#include "NPRuntimeUtilities.h"
+#include "PluginView.h"
+#include <WebCore/Frame.h>
+#include <WebCore/IdentifierRep.h>
+#include <JavaScriptCore/JSObject.h>
+#include <JavaScriptCore/Protect.h>
+#include <WebKit/npruntime.h>
+#include <wtf/Noncopyable.h>
+
+using namespace JSC;
+using namespace WebCore;
+
+namespace WebKit {
+
+class NPJSObject : public NPObject, Noncopyable {
+public:
+    static NPJSObject* create(NPJSObjectMap* objectMap, JSObject* jsObject);
+
+private:
+    NPJSObject()
+        : m_objectMap(0)
+    {
+    }
+
+    ~NPJSObject()
+    {
+        // Remove ourselves from the map.
+        ASSERT(m_objectMap->m_objects.contains(m_jsObject.get()));
+        m_objectMap->m_objects.remove(m_jsObject.get());
+    }
+
+    static bool isNPJSObject(NPObject*);
+
+    static NPJSObject* toNPJSObject(NPObject* npObject)
+    {
+        ASSERT(isNPJSObject(npObject));
+        return static_cast<NPJSObject*>(npObject);
+    }
+
+    void initialize(NPJSObjectMap*, JSObject* jsObject);
+
+    bool hasProperty(NPIdentifier);
+    bool getProperty(NPIdentifier, NPVariant* result);
+
+    static NPClass* npClass();
+    static NPObject* NP_Allocate(NPP, NPClass*);
+    static void NP_Deallocate(NPObject*);
+    static bool NP_HasProperty(NPObject* npobj, NPIdentifier name);
+    static bool NP_GetProperty(NPObject* npobj, NPIdentifier name, NPVariant* result);
+    
+    NPJSObjectMap* m_objectMap;
+    ProtectedPtr<JSObject> m_jsObject;
+};
+
+NPJSObject* NPJSObject::create(NPJSObjectMap* objectMap, JSObject* jsObject)
+{
+    NPJSObject* npJSObject = toNPJSObject(createNPObject(0, npClass()));
+    npJSObject->initialize(objectMap, jsObject);
+
+    return npJSObject;
+}
+
+bool NPJSObject::isNPJSObject(NPObject* npObject)
+{
+    return npObject->_class == npClass();
+}
+
+void NPJSObject::initialize(NPJSObjectMap* objectMap, JSObject* jsObject)
+{
+    ASSERT(!m_objectMap);
+    ASSERT(!m_jsObject);
+
+    m_objectMap = objectMap;
+    m_jsObject = jsObject;
+}
+
+static Identifier identifierFromIdentifierRep(ExecState* exec, IdentifierRep* identifierRep)
+{
+    ASSERT(identifierRep->isString());
+
+    const char* string = identifierRep->string();
+    int length = strlen(string);
+
+    return Identifier(exec, String::fromUTF8WithLatin1Fallback(string, length).impl());
+}
+
+bool NPJSObject::hasProperty(NPIdentifier identifier)
+{
+    IdentifierRep* identifierRep = static_cast<IdentifierRep*>(identifier);
+    
+    Frame* frame = m_objectMap->m_pluginView->frame();
+    if (!frame)
+        return false;
+
+    bool result;
+    ExecState* exec = frame->script()->globalObject(pluginWorld())->globalExec();
+    if (identifierRep->isString())
+        result = m_jsObject->hasProperty(exec, identifierFromIdentifierRep(exec, identifierRep));
+    else
+        result = m_jsObject->hasProperty(exec, identifierRep->number());
+
+    exec->clearException();
+
+    return result;
+}
+
+bool NPJSObject::getProperty(NPIdentifier identifier, NPVariant* result)
+{
+    // FIXME: Implement.
+    return false;
+}
+
+NPClass* NPJSObject::npClass()
+{
+    static NPClass npClass = {
+        NP_CLASS_STRUCT_VERSION,
+        NP_Allocate,
+        NP_Deallocate,
+        0, 
+        0,
+        0,
+        0,
+        NP_HasProperty,
+        NP_GetProperty,
+        0,
+        0,
+        0,
+        0
+    };
+
+    return &npClass;
+}
+    
+NPObject* NPJSObject::NP_Allocate(NPP npp, NPClass* npClass)
+{
+    ASSERT_UNUSED(npp, !npp);
+
+    return new NPJSObject;
+}
+
+void NPJSObject::NP_Deallocate(NPObject* npObject)
+{
+    NPJSObject* npJSObject = toNPJSObject(npObject);
+    delete npJSObject;
+}
+
+bool NPJSObject::NP_HasProperty(NPObject* npObject, NPIdentifier propertyName)
+{
+    return toNPJSObject(npObject)->hasProperty(propertyName);
+}
+    
+bool NPJSObject::NP_GetProperty(NPObject* npObject, NPIdentifier propertyName, NPVariant* result)
+{
+    return toNPJSObject(npObject)->getProperty(propertyName, result);
+}
+
+NPJSObjectMap::NPJSObjectMap(PluginView* pluginView)
+    : m_pluginView(pluginView)
+{
+}
+
+NPObject* NPJSObjectMap::getOrCreateObject(JSObject* jsObject)
+{
+    // First, check if we already know about this object.
+    if (NPJSObject* npJSObject = m_objects.get(jsObject)) {
+        retainNPObject(npJSObject);
+        return npJSObject;
+    }
+
+    NPJSObject* npJSObject = NPJSObject::create(this, jsObject);
+    m_objects.set(jsObject, npJSObject);
+
+    return npJSObject;
+}
+
+void NPJSObjectMap::invalidate()
+{
+    Vector<NPJSObject*> npJSObjects;
+    copyValuesToVector(m_objects, npJSObjects);
+
+    // Deallocate all the object wrappers so we won't leak any JavaScript objects.
+    for (size_t i = 0; i < npJSObjects.size(); ++i)
+        deallocateNPObject(npJSObjects[i]);
+    
+    // We shouldn't have any objects left now.
+    ASSERT(m_objects.isEmpty());
+}
+
+} // namespace WebKit