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// Copyright (c) 2006-2008 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 O3D_GPU_PLUGIN_NP_UTILS_NP_CLASS_H_
#define O3D_GPU_PLUGIN_NP_UTILS_NP_CLASS_H_
#include "o3d/gpu_plugin/np_utils/np_object_pointer.h"
#include "o3d/gpu_plugin/np_utils/np_headers.h"
// This file implements NPGetClass<T>. This function returns an NPClass
// that can be used to instantiate an NPObject subclass T. The NPClass
// function pointers will invoke the most derived corresponding member
// functions in T.
namespace o3d {
namespace gpu_plugin {
namespace np_class_impl {
// This template version of the NPClass allocate function creates a subclass
// of BaseNPObject.
template <typename NPObjectType>
static NPObject* Allocate(NPP npp, NPClass*) {
return new NPObjectType(npp);
}
// These implementations of the NPClass functions forward to the virtual
// functions in DefaultNPObject.
template <typename NPObjectType>
static void Deallocate(NPObject* object) {
delete static_cast<NPObjectType*>(object);
}
template <typename NPObjectType>
static void Invalidate(NPObject* object) {
return static_cast<NPObjectType*>(object)->Invalidate();
}
template <typename NPObjectType>
static bool HasMethod(NPObject* object, NPIdentifier name) {
return static_cast<NPObjectType*>(object)->HasMethod(name);
}
template <typename NPObjectType>
static bool Invoke(NPObject* object,
NPIdentifier name,
const NPVariant* args,
uint32_t num_args,
NPVariant* result) {
return static_cast<NPObjectType*>(object)->Invoke(
name, args, num_args, result);
}
template <typename NPObjectType>
static bool InvokeDefault(NPObject* object,
const NPVariant* args,
uint32_t num_args,
NPVariant* result) {
return static_cast<NPObjectType*>(object)->InvokeDefault(
args, num_args, result);
}
template <typename NPObjectType>
static bool HasProperty(NPObject* object, NPIdentifier name) {
return static_cast<NPObjectType*>(object)->HasProperty(name);
}
template <typename NPObjectType>
static bool GetProperty(NPObject* object,
NPIdentifier name,
NPVariant* result) {
return static_cast<NPObjectType*>(object)->GetProperty(name, result);
}
template <typename NPObjectType>
static bool SetProperty(NPObject* object,
NPIdentifier name,
const NPVariant* value) {
return static_cast<NPObjectType*>(object)->SetProperty(name, value);
}
template <typename NPObjectType>
static bool RemoveProperty(NPObject* object, NPIdentifier name) {
return static_cast<NPObjectType*>(object)->RemoveProperty(name);
}
template <typename NPObjectType>
static bool Enumerate(NPObject* object,
NPIdentifier** names,
uint32_t* count) {
return static_cast<NPObjectType*>(object)->Enumerate(names, count);
};
template <typename NPObjectType>
static bool Construct(NPObject* object,
const NPVariant* args,
uint32_t num_args,
NPVariant* result) {
return static_cast<NPObjectType*>(object)->Construct(
args, num_args, result);
}
} // namespace np_class_impl;
template <typename NPObjectType>
const NPClass* NPGetClass() {
static const NPClass np_class = {
NP_CLASS_STRUCT_VERSION,
np_class_impl::Allocate<NPObjectType>,
np_class_impl::Deallocate<NPObjectType>,
np_class_impl::Invalidate<NPObjectType>,
np_class_impl::HasMethod<NPObjectType>,
np_class_impl::Invoke<NPObjectType>,
np_class_impl::InvokeDefault<NPObjectType>,
np_class_impl::HasProperty<NPObjectType>,
np_class_impl::GetProperty<NPObjectType>,
np_class_impl::SetProperty<NPObjectType>,
np_class_impl::RemoveProperty<NPObjectType>,
np_class_impl::Enumerate<NPObjectType>,
np_class_impl::Construct<NPObjectType>,
};
return &np_class;
};
} // namespace gpu_plugin
} // namespace o3d
#endif // O3D_GPU_PLUGIN_NP_UTILS_NP_CLASS_H_
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