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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef REMOTING_HOST_PLUGIN_HOST_PLUGIN_UTILS_H_
#define REMOTING_HOST_PLUGIN_HOST_PLUGIN_UTILS_H_
#include <string>
#include "third_party/npapi/bindings/npapi.h"
#include "third_party/npapi/bindings/npfunctions.h"
#include "third_party/npapi/bindings/npruntime.h"
namespace remoting {
// Global netscape functions initialized in NP_Initialize.
extern NPNetscapeFuncs* g_npnetscape_funcs;
// Convert an NPIdentifier into a std::string.
std::string StringFromNPIdentifier(NPIdentifier identifier);
// Convert an NPVariant into a std::string.
std::string StringFromNPVariant(const NPVariant& variant);
// Convert a std::string into an NPVariant.
// Caller is responsible for making sure that NPN_ReleaseVariantValue is
// called on returned value.
NPVariant NPVariantFromString(const std::string& val);
// Convert an NPVariant into an NSPObject.
NPObject* ObjectFromNPVariant(const NPVariant& variant);
// Scoped reference pointer for NPObjects. All objects using this class
// must be owned by g_npnetscape_funcs.
class ScopedRefNPObject {
public:
ScopedRefNPObject();
explicit ScopedRefNPObject(NPObject* object);
explicit ScopedRefNPObject(const ScopedRefNPObject& object);
~ScopedRefNPObject();
// Release the held reference and replace it with |object|, incrementing
// its reference count.
ScopedRefNPObject& operator=(NPObject* object);
ScopedRefNPObject& operator=(const ScopedRefNPObject& object);
NPObject* get() const { return object_; }
private:
NPObject* object_;
};
} // namespace remoting
#endif // REMOTING_HOST_PLUGIN_HOST_PLUGIN_UTILS_H_
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