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+// Copyright (c) 2008, 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:
+//
+// * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+// * 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.
+// * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT
+// OWNER 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 "ScriptController.h"
+
+#include "bindings/npruntime.h"
+#include "c_instance.h"
+
+#undef LOG // glue defines its own LOG macro
+#include "webkit/glue/webplugin_impl.h"
+
+namespace WebCore {
+
+JSInstanceHandle ScriptController::createScriptInstanceForWidget(Widget* widget)
+{
+ ASSERT(widget != 0);
+
+ if (widget->isFrameView())
+ return JSInstanceHolder::EmptyInstance();
+
+ // Note: We have to trust that the widget passed to us here
+ // is a WebPluginImpl. There isn't a way to dynamically verify
+ // it, since the derived class (Widget) has no identifier.
+ WebPluginContainer* container = static_cast<WebPluginContainer*>(widget);
+ if (!container)
+ return JSInstanceHolder::EmptyInstance();
+
+ NPObject* npObject = container->GetPluginScriptableObject();
+ if (!npObject)
+ return JSInstanceHolder::EmptyInstance();
+
+ // Register 'widget' with the frame so that we can teardown
+ // subobjects when the container goes away.
+ RefPtr<JSC::Bindings::RootObject> root = createRootObject(widget);
+ RefPtr<JSC::Bindings::Instance> instance =
+ JSC::Bindings::CInstance::create(npObject, root.release());
+ // GetPluginScriptableObject returns a retained NPObject.
+ // The caller is expected to release it.
+ NPN_ReleaseObject(npObject);
+ return instance.release();
+}
+
+} // namespace WebCpre