JavaScriptCore/bindings/runtime.cpp

/*
 * 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 "runtime.h"

#include "JSLock.h"
#include "NP_jsobject.h"
#include "c_instance.h"
#include "runtime_object.h"
#include "runtime_root.h"

#if HAVE(JNI)
#include "jni_instance.h"
#endif
#if PLATFORM(MAC)
#include "objc_instance.h"
#endif
#if PLATFORM(QT)
#include "qt_instance.h"
#endif

namespace KJS { namespace Bindings {

Array::Array(PassRefPtr<RootObject> rootObject)
    : _rootObject(rootObject)
{
    ASSERT(_rootObject);
}

Array::~Array()
{
}

Instance::Instance(PassRefPtr<RootObject> rootObject)
    : _rootObject(rootObject)
    , _refCount(0)
{
    ASSERT(_rootObject);
}

Instance::~Instance()
{
}

static KJSDidExecuteFunctionPtr _DidExecuteFunction;

void Instance::setDidExecuteFunction(KJSDidExecuteFunctionPtr func) { _DidExecuteFunction = func; }
KJSDidExecuteFunctionPtr Instance::didExecuteFunction() { return _DidExecuteFunction; }

JSValue *Instance::getValueOfField(ExecState *exec, const Field *aField) const
{
    return aField->valueFromInstance(exec, this);
}

void Instance::setValueOfField(ExecState *exec, const Field *aField, JSValue *aValue) const
{
    aField->setValueToInstance(exec, this, aValue);
}

Instance* Instance::createBindingForLanguageInstance(BindingLanguage language, void* nativeInstance, PassRefPtr<RootObject> rootObject)
{
    Instance *newInstance = 0;

    switch (language) {
#if HAVE(JNI)
        case Instance::JavaLanguage: {
            newInstance = new Bindings::JavaInstance((jobject)nativeInstance, rootObject);
            break;
        }
#endif
#if PLATFORM(MAC)
        case Instance::ObjectiveCLanguage: {
            newInstance = new Bindings::ObjcInstance((ObjectStructPtr)nativeInstance, rootObject);
            break;
        }
#endif
#if !PLATFORM(DARWIN) || !defined(__LP64__)
        case Instance::CLanguage: {
            newInstance = new Bindings::CInstance((NPObject *)nativeInstance, rootObject);
            break;
        }
#endif
#if PLATFORM(QT)
        case Instance::QtLanguage: {
            newInstance = Bindings::QtInstance::getQtInstance((QObject *)nativeInstance, rootObject);
            break;
        }
#endif
        default:
            break;
    }

    return newInstance;
}

JSObject* Instance::createRuntimeObject(BindingLanguage language, void* nativeInstance, PassRefPtr<RootObject> rootObject)
{
    Instance* instance = Instance::createBindingForLanguageInstance(language, nativeInstance, rootObject);

    return createRuntimeObject(instance);
}

JSObject* Instance::createRuntimeObject(Instance* instance)
{
#if PLATFORM(QT)
    if (instance->getBindingLanguage() == QtLanguage)
        return QtInstance::getRuntimeObject(static_cast<QtInstance*>(instance));
#endif
    JSLock lock;

    return new RuntimeObjectImp(instance);
}

Instance* Instance::getInstance(JSObject* object, BindingLanguage language)
{
    if (!object)
        return 0;
    if (!object->inherits(&RuntimeObjectImp::info))
        return 0;
    Instance* instance = (static_cast<RuntimeObjectImp*>(object))->getInternalInstance();
    if (!instance)
        return 0;
    if (instance->getBindingLanguage() != language)
        return 0;
    return instance;
}

RootObject* Instance::rootObject() const 
{ 
    return _rootObject && _rootObject->isValid() ? _rootObject.get() : 0;
}

} } // namespace KJS::Bindings