jscript.h

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/*
 * v8script.h
 *
 * Interface library for V8 Javascript interpreter
 *
 * Portable Tools Library
 *
 * Copyright (C) 2012 by Post Increment
 *
 * The contents of this file are subject to the Mozilla Public License
 * Version 1.0 (the "License"); you may not use this file except in
 * compliance with the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS"
 * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
 * the License for the specific language governing rights and limitations
 * under the License.
 *
 * The Original Code is Portable Tools Library.
 *
 * The Initial Developer of the Original Code is Post Increment
 *
 * Contributor(s): Craig Southeren
 *
 * $Revision: 28224 $
 * $Author: rjongbloed $
 * $Date: 2012-08-21 18:09:25 +1000 (Tue, 21 Aug 2012) $
 */

#ifndef PTLIB_V8SCRIPT_H
#define PTLIB_V8SCRIPT_H

#ifdef P_USE_PRAGMA
#pragma interface
#endif

#include <ptlib.h>
#include <ptbuildopts.h>

#if P_V8

#include <ptclib/script.h>
#include <ptclib/vartype.h>

#ifdef _MSC_VER
  #pragma warning(disable:4100 4127)
#endif

#include <v8.h>

#ifdef _MSC_VER
#pragma warning(default:4100 4127)
#endif



class PJavaScript : public PScriptLanguage
{
  PCLASSINFO(PJavaScript, PScriptLanguage)

  public:
    PJavaScript();

    ~PJavaScript();

    virtual bool LoadFile(
      const PFilePath & filename  
    );

    virtual bool LoadText(
      const PString & text  
    );

    virtual bool Run(
      const char * script = NULL
    );


    virtual bool CreateComposite(
      const PString & name   
    );

    virtual bool GetVar(
      const PString & name,  
      PVarType & var
    );

    virtual bool SetVar(
      const PString & name, 
      const PVarType & var
    );

    bool GetBoolean(
      const PString & name  
    );

    bool SetBoolean(
      const PString & name, 
      bool value            
    );

    int GetInteger(
      const PString & name  
    );

    bool SetInteger(
      const PString & name, 
      int value             
    );

    double GetNumber(
      const PString & name  
    );

    bool SetNumber(
      const PString & name, 
      double value          
    );

    PString GetString(
      const PString & name  
    );

    bool SetString(
      const PString & name, 
      const char * value    
    );

    virtual bool ReleaseVariable(
      const PString & name    
    );

    bool Call(
      const PString & name,           
      const char * sigString = NULL,  
      ...
    );
    bool Call(
      const PString & name,       
      Signature & signature 
    );


    bool SetFunction(
      const PString & name,         
      const FunctionNotifier & func 
    );

  protected:
    template <class v8Type, class cppType>
    bool SetValue(const PString & name, const cppType & value)
    {
      v8::Locker locker;
      v8::HandleScope handleScope;
      v8::Context::Scope contextScope(m_context);
      return m_context->Global()->Set(v8::String::New(name), v8Type::New(value));
    }

    v8::Persistent<v8::Context> m_context;
    PString m_resultText;
};


#endif // P_V8

#endif  // PTLIB_V8SCRIPT_H