include/cppu/Enterable.hxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #ifndef INCLUDED_CPPU_ENTERABLE_HXX
  21 #define INCLUDED_CPPU_ENTERABLE_HXX
  22
  23 #include <uno/Enterable.h>
  24 #include <rtl/ustring.hxx>
  25
  26 namespace cppu
  27 {
  28 /** C++ wrapper for binary C Enterable
  29     (http://wiki.openoffice.org/wiki/Uno/Cpp/Spec/Environment_Stack)
  30
  31     @see uno_Enterable
  32     @since UDK 3.2.7
  33 */
  34 class Enterable : public uno_Enterable
  35 {
  36 public:
  37     /* These methods need to be implemented in a derived class.
  38      */
  39     virtual void v_enter()                                      = 0;
  40     virtual void v_leave()                                      = 0;
  41     virtual void v_callInto_v(uno_EnvCallee * pCallee, va_list * pParam) = 0;
  42     virtual void v_callOut_v (uno_EnvCallee * pCallee, va_list * pParam) = 0;
  43     virtual bool v_isValid   (rtl::OUString * pReason)                   = 0;
  44
  45     virtual ~Enterable() {}
  46
  47 public:
  48     inline explicit Enterable();
  49
  50     void enter() {m_enter(this);}
  51     void leave() {m_leave(this);}
  52
  53     void callInto_v(uno_EnvCallee * pCallee, va_list * pParam) {m_callInto_v(this, pCallee, pParam);}
  54     void callOut_v (uno_EnvCallee * pCallee, va_list * pParam) {m_callOut_v (this, pCallee, pParam);}
  55
  56     inline void callInto(uno_EnvCallee * pCallee, ...);
  57     inline void callOut (uno_EnvCallee * pCallee, ...);
  58
  59     int  isValid (rtl::OUString * pReason) {return m_isValid(this, &pReason->pData);}
  60
  61 private:
  62     Enterable(Enterable const &) SAL_DELETED_FUNCTION;
  63     Enterable & operator = (Enterable const &) SAL_DELETED_FUNCTION;
  64 };
  65
  66 extern "C" inline void Enterable_call_enter (void * context) { static_cast<Enterable *>(context)->v_enter(); }
  67 extern "C" inline void Enterable_call_leave (void * context) { static_cast<Enterable *>(context)->v_leave(); }
  68 extern "C" inline void Enterable_call_callInto_v(void * context, uno_EnvCallee * pCallee, va_list * pParam)
  69     { static_cast<Enterable *>(context)->v_callInto_v(pCallee, pParam); }
  70 extern "C" inline void Enterable_call_callOut_v (void * context, uno_EnvCallee * pCallee, va_list * pParam)
  71     { static_cast<Enterable *>(context)->v_callOut_v(pCallee, pParam); }
  72 extern "C" inline int  Enterable_call_isValid   (void * context, rtl_uString ** pReason)
  73     {return static_cast<Enterable *>(context)->v_isValid(reinterpret_cast<rtl::OUString *>(pReason));}
  74
  75
  76 Enterable::Enterable()
  77 {
  78     m_enter      = Enterable_call_enter;
  79     m_leave      = Enterable_call_leave;
  80     m_callInto_v = Enterable_call_callInto_v;
  81     m_callOut_v  = Enterable_call_callOut_v;
  82     m_isValid    = Enterable_call_isValid;
  83 }
  84
  85 void Enterable::callInto(uno_EnvCallee * pCallee, ...)
  86 {
  87     va_list param;
  88
  89     va_start(param, pCallee);
  90     callInto_v(pCallee, &param);
  91     va_end(param);
  92 }
  93
  94 void Enterable::callOut(uno_EnvCallee * pCallee, ...)
  95 {
  96     va_list param;
  97
  98     va_start(param, pCallee);
  99     callOut_v(pCallee, &param);
 100     va_end(param);
 101 }
 102
 103 }
 104
 105
 106 #endif
 107
 108 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */