text: /*
   * Copyright (C) 2004, 2006 Apple Computer, Inc.  All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in the
   *    documentation and/or other materials provided with the distribution.
   *
   * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
   * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
   * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
   * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
   * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
   * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
   * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
   * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
   * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
   */
  
  #include "config.h"
  
  #if ENABLE(NETSCAPE_PLUGIN_API)
  
  #include "IdentifierRep.h"
  #include "npruntime_internal.h"
  #include "npruntime_impl.h"
  #include "npruntime_priv.h"
  
  #include "c_utility.h"
  #include <runtime/Identifier.h>
  #include <runtime/JSLock.h>
  #include <wtf/Assertions.h>
  #include <wtf/HashMap.h>
  
  using namespace JSC::Bindings;
  using namespace WebCore;
  
  NPIdentifier _NPN_GetStringIdentifier(const NPUTF8* name)
  {
      return static_cast<NPIdentifier>(IdentifierRep::get(name));
  }
  
  void _NPN_GetStringIdentifiers(const NPUTF8** names, int32_t nameCount, NPIdentifier* identifiers)
  {
      ASSERT(names);
      ASSERT(identifiers);
      
      if (names && identifiers) {
          for (int i = 0; i < nameCount; i++)
              identifiers[i] = _NPN_GetStringIdentifier(names[i]);
      }
  }
  
  NPIdentifier _NPN_GetIntIdentifier(int32_t intid)
  {
      return static_cast<NPIdentifier>(IdentifierRep::get(intid));
  }
  
  bool _NPN_IdentifierIsString(NPIdentifier identifier)
  {
      return static_cast<IdentifierRep*>(identifier)->isString();
  }
  
  NPUTF8 *_NPN_UTF8FromIdentifier(NPIdentifier identifier)
  {
      const char* string = static_cast<IdentifierRep*>(identifier)->string();
      if (!string)
          return 0;
      
      return strdup(string);
  }
  
  int32_t _NPN_IntFromIdentifier(NPIdentifier identifier)
  {
      return static_cast<IdentifierRep*>(identifier)->number();
  }
  
  void NPN_InitializeVariantWithStringCopy(NPVariant* variant, const NPString* value)
  {
      variant->type = NPVariantType_String;
      variant->value.stringValue.UTF8Length = value->UTF8Length;
      // Switching to fastMalloc would be better to avoid length check but this is not desirable
      // as NPN_MemAlloc is using malloc and there might be plugins that mix NPN_MemAlloc and malloc too.
      variant->value.stringValue.UTF8Characters = (NPUTF8*)malloc(sizeof(NPUTF8) * value->UTF8Length);
      if (value->UTF8Length && !variant->value.stringValue.UTF8Characters)
          CRASH();
      memcpy((void*)variant->value.stringValue.UTF8Characters, value->UTF8Characters, sizeof(NPUTF8) * value->UTF8Length);
  }
  
  void _NPN_ReleaseVariantValue(NPVariant* variant)
  {
      ASSERT(variant);
  
      if (variant->type == NPVariantType_Object) {
          _NPN_ReleaseObject(variant->value.objectValue);
          variant->value.objectValue = 0;
      } else if (variant->type == NPVariantType_String) {
          free((void*)variant->value.stringValue.UTF8Characters);
          variant->value.stringValue.UTF8Characters = 0;
          variant->value.stringValue.UTF8Length = 0;
      }
  
      variant->type = NPVariantType_Void;
  }
  
  NPObject *_NPN_CreateObject(NPP npp, NPClass* aClass)
  {
      ASSERT(aClass);
  
      if (aClass) {
          NPObject* obj;
          if (aClass->allocate != NULL)
              obj = aClass->allocate(npp, aClass);
          else
              obj = (NPObject*)malloc(sizeof(NPObject));
          if (!obj)
              CRASH();
          obj->_class = aClass;
          obj->referenceCount = 1;
  
          return obj;
      }
  
      return 0;
  }
  
  NPObject* _NPN_RetainObject(NPObject* obj)
  {
      ASSERT(obj);
  
      if (obj)
          obj->referenceCount++;
  
      return obj;
  }
  
  void _NPN_ReleaseObject(NPObject* obj)
  {
      ASSERT(obj);
      ASSERT(obj->referenceCount >= 1);
  
      if (obj && obj->referenceCount >= 1) {
          if (--obj->referenceCount == 0)
              _NPN_DeallocateObject(obj);
      }
  }
  
  void _NPN_DeallocateObject(NPObject *obj)
  {
      ASSERT(obj);
  
      if (obj) {
          if (obj->_class->deallocate)
              obj->_class->deallocate(obj);
          else
              free(obj);
      }
  }
  
  #endif // ENABLE(NETSCAPE_PLUGIN_API)
  