/platform/external/webkit/WebCore/bridge/c/c_class.cpp

  1/*
  2 * Copyright (C) 2003, 2006 Apple Computer, Inc.  All rights reserved.
  3 *
  4 * Redistribution and use in source and binary forms, with or without
  5 * modification, are permitted provided that the following conditions
  6 * are met:
  7 * 1. Redistributions of source code must retain the above copyright
  8 *    notice, this list of conditions and the following disclaimer.
  9 * 2. Redistributions in binary form must reproduce the above copyright
 10 *    notice, this list of conditions and the following disclaimer in the
 11 *    documentation and/or other materials provided with the distribution.
 12 *
 13 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 16 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
 24 */
 25
 26#include "config.h"
 27
 28#if ENABLE(NETSCAPE_PLUGIN_API)
 29
 30#include "c_class.h"
 31
 32#include "c_instance.h"
 33#include "c_runtime.h"
 34#include "npruntime_impl.h"
 35#include <runtime/Identifier.h>
 36#include <runtime/JSLock.h>
 37
 38namespace JSC { namespace Bindings {
 39
 40CClass::CClass(NPClass* aClass)
 41{
 42    _isa = aClass;
 43}
 44
 45CClass::~CClass()
 46{
 47    JSLock lock(SilenceAssertionsOnly);
 48
 49    deleteAllValues(_methods);
 50    _methods.clear();
 51
 52    deleteAllValues(_fields);
 53    _fields.clear();
 54}
 55
 56typedef HashMap<NPClass*, CClass*> ClassesByIsAMap;
 57static ClassesByIsAMap* classesByIsA = 0;
 58
 59CClass* CClass::classForIsA(NPClass* isa)
 60{
 61    if (!classesByIsA)
 62        classesByIsA = new ClassesByIsAMap;
 63
 64    CClass* aClass = classesByIsA->get(isa);
 65    if (!aClass) {
 66        aClass = new CClass(isa);
 67        classesByIsA->set(isa, aClass);
 68    }
 69
 70    return aClass;
 71}
 72
 73MethodList CClass::methodsNamed(const Identifier& identifier, Instance* instance) const
 74{
 75    MethodList methodList;
 76
 77    Method* method = _methods.get(identifier.ustring().rep());
 78    if (method) {
 79        methodList.append(method);
 80        return methodList;
 81    }
 82
 83    NPIdentifier ident = _NPN_GetStringIdentifier(identifier.ascii());
 84    const CInstance* inst = static_cast<const CInstance*>(instance);
 85    NPObject* obj = inst->getObject();
 86    if (_isa->hasMethod && _isa->hasMethod(obj, ident)){
 87        Method* aMethod = new CMethod(ident); // deleted in the CClass destructor
 88        {
 89            JSLock lock(SilenceAssertionsOnly);
 90            _methods.set(identifier.ustring().rep(), aMethod);
 91        }
 92        methodList.append(aMethod);
 93    }
 94    
 95    return methodList;
 96}
 97
 98Field* CClass::fieldNamed(const Identifier& identifier, Instance* instance) const
 99{
100    Field* aField = _fields.get(identifier.ustring().rep());
101    if (aField)
102        return aField;
103    
104    NPIdentifier ident = _NPN_GetStringIdentifier(identifier.ascii());
105    const CInstance* inst = static_cast<const CInstance*>(instance);
106    NPObject* obj = inst->getObject();
107    if (_isa->hasProperty && _isa->hasProperty(obj, ident)){
108        aField = new CField(ident); // deleted in the CClass destructor
109        {
110            JSLock lock(SilenceAssertionsOnly);
111            _fields.set(identifier.ustring().rep(), aField);
112        }
113    }
114    return aField;
115}
116
117} } // namespace JSC::Bindings
118
119#endif // ENABLE(NETSCAPE_PLUGIN_API)