c_class.cpp   [plain text]

/*
 * Copyright (C) 2003, 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"
#include "c_class.h"

#include "c_instance.h"
#include "c_runtime.h"
#include "npruntime_impl.h"

// FIXME: Should use HashMap instead of CFDictionary for better performance and for portability.

namespace KJS {
namespace Bindings {

CClass::CClass(NPClass* aClass)
{
    _isa = aClass;
    _methods = CFDictionaryCreateMutable(NULL, 0, &kCFTypeDictionaryKeyCallBacks, &MethodDictionaryValueCallBacks);
    _fields = CFDictionaryCreateMutable(NULL, 0, &kCFTypeDictionaryKeyCallBacks, &FieldDictionaryValueCallBacks);
}

CClass::~CClass()
{
    CFRelease(_methods);
    CFRelease(_fields);
}
    
static CFMutableDictionaryRef classesByIsA = 0;

CClass* CClass::classForIsA(NPClass* isa)
{
    if (!classesByIsA)
        classesByIsA = CFDictionaryCreateMutable(NULL, 0, NULL, NULL);

    CClass* aClass = (CClass*)CFDictionaryGetValue(classesByIsA, isa);
    if (!aClass) {
        aClass = new CClass(isa);
        CFDictionaryAddValue(classesByIsA, isa, aClass);
    }

    return aClass;
}

const char* CClass::name() const
{
    return "";
}

MethodList CClass::methodsNamed(const char* _name, Instance* instance) const
{
    MethodList methodList;

    CFStringRef methodName = CFStringCreateWithCString(NULL, _name, kCFStringEncodingASCII);
    Method* method = (Method*)CFDictionaryGetValue(_methods, methodName);
    if (method) {
        CFRelease(methodName);
        methodList.addMethod(method);
        return methodList;
    }

    NPIdentifier ident = _NPN_GetStringIdentifier(_name);
    const CInstance* inst = static_cast<const CInstance*>(instance);
    NPObject* obj = inst->getObject();
    if (_isa->hasMethod && _isa->hasMethod(obj, ident)){
        Method* aMethod = new CMethod(ident); // deleted when the dictionary is destroyed
        CFDictionaryAddValue(_methods, methodName, aMethod);
        methodList.addMethod(aMethod);
    }

    CFRelease(methodName);
    return methodList;
}


Field* CClass::fieldNamed(const char* name, Instance* instance) const
{
    CFStringRef fieldName = CFStringCreateWithCString(NULL, name, kCFStringEncodingASCII);
    Field* aField = (Field *)CFDictionaryGetValue(_fields, fieldName);
    if (aField) {
        CFRelease(fieldName);
        return aField;
    }

    NPIdentifier ident = _NPN_GetStringIdentifier(name);
    const CInstance* inst = static_cast<const CInstance*>(instance);
    NPObject* obj = inst->getObject();
    if (_isa->hasProperty && _isa->hasProperty(obj, ident)){
        aField = new CField(ident); // deleted when the dictionary is destroyed
        CFDictionaryAddValue(_fields, fieldName, aField);
    }

    CFRelease(fieldName);
    return aField;
}

}
}