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/*
* Copyright © 2008 Christian Persch
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef __TOTEM_NPCLASS_H__
#define __TOTEM_NPCLASS_H__
#include <assert.h>
#include "npapi.h"
#include "npruntime.h"
class totemNPObject;
class totemNPClass_base : public NPClass {
public:
NPObject* CreateInstance (NPP aNPP) {
return NPN_CreateObject (aNPP, this);
}
protected:
friend class totemNPObject;
totemNPClass_base (const char *aPropertNames[],
uint32_t aPropertyCount,
const char *aMethodNames[],
uint32_t aMethodCount,
const char *aDefaultMethodName);
virtual ~totemNPClass_base ();
virtual NPObject* InternalCreate (NPP aNPP) = 0;
int GetPropertyIndex (NPIdentifier aName);
int GetMethodIndex (NPIdentifier aName);
int GetDefaultMethodIndex () const { return mDefaultMethodIndex; }
bool EnumerateProperties (NPIdentifier **_result, uint32_t *_count);
private:
static NPObject* Allocate (NPP aNPP, NPClass *aClass);
static void Deallocate (NPObject *aObject);
static void Invalidate (NPObject *aObject);
static bool HasMethod (NPObject *aObject, NPIdentifier aName);
static bool Invoke (NPObject *aObject, NPIdentifier aName, const NPVariant *argv, uint32_t argc, NPVariant *_result);
static bool InvokeDefault (NPObject *aObject, const NPVariant *argv, uint32_t argc, NPVariant *_result);
static bool HasProperty (NPObject *aObject, NPIdentifier aName);
static bool GetProperty (NPObject *aObject, NPIdentifier aName, NPVariant *_result);
static bool SetProperty (NPObject *aObject, NPIdentifier aName, const NPVariant *aValue);
static bool RemoveProperty (NPObject *aObject, NPIdentifier aName);
static bool Enumerate (NPObject *aObject, NPIdentifier **_result, uint32_t *_count);
static bool Construct (NPObject *aObject, const NPVariant *argv, uint32_t argc, NPVariant *_result);
NPIdentifier* GetIdentifiersForNames (const char *aNames[], uint32_t aCount);
NPIdentifier *mPropertyNameIdentifiers;
int mPropertyNamesCount;
NPIdentifier *mMethodNameIdentifiers;
int mMethodNamesCount;
int mDefaultMethodIndex;
};
template <class T>
class totemNPClass : public totemNPClass_base {
public:
typedef totemNPClass<T> class_type;
totemNPClass (const char *aPropertNames[],
uint32_t aPropertyCount,
const char *aMethodNames[],
uint32_t aMethodCount,
const char *aDefaultMethodName) :
totemNPClass_base (aPropertNames, aPropertyCount,
aMethodNames, aMethodCount,
aDefaultMethodName) {
}
virtual ~totemNPClass () { }
protected:
virtual NPObject* InternalCreate (NPP aNPP) {
return new T (aNPP);
}
};
/* Helper macros */
#define TOTEM_DEFINE_NPCLASS(T) \
class T##NPClass : public totemNPClass<T> {\
\
public:\
\
T##NPClass () throw ();\
virtual ~T##NPClass ();\
\
static class_type* Instance () throw ();\
static void Shutdown ();\
\
private:\
static class_type* sInstance;\
}
#define TOTEM_IMPLEMENT_NPCLASS(T, propertyNames, propertyNamesCount, methodNames, methodNamesCount, defaultMethodName) \
\
T##NPClass::class_type* T##NPClass::sInstance = 0; \
\
T##NPClass::T##NPClass () throw ()\
: totemNPClass<T> (propertyNames,\
propertyNamesCount,\
methodNames,\
methodNamesCount,\
defaultMethodName)\
{\
}\
\
T##NPClass::~T##NPClass ()\
{\
}\
\
T##NPClass::class_type* \
T##NPClass::Instance () throw ()\
{\
if (!sInstance) {\
sInstance = new T##NPClass ();\
}\
\
return sInstance;\
}\
\
void \
T##NPClass::Shutdown ()\
{\
delete sInstance;\
sInstance = 0;\
}
#endif /* __TOTEM_NPCLASS_H__ */
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