/*

 * Copyright (C) 2005, 2009 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. 

 * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of

 *     its contributors may be used to endorse or promote products derived

 *     from this software without specific prior written permission. 

 *

 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "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 OR ITS 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 "JSValueWrapper.h"

#include "JSRun.h"

#include <JavaScriptCore/JSArray.h>

#include <JavaScriptCore/PropertyNameArray.h>

#include <pthread.h>

JSValueWrapper::JSValueWrapper(JSValue inValue)

    : fValue(inValue)

{

}

JSValueWrapper::~JSValueWrapper()

{

}

JSValue JSValueWrapper::GetValue()

{

    return fValue.get();

}

void JSValueWrapper::GetJSObectCallBacks(JSObjectCallBacks& callBacks)

{

    callBacks.dispose = (JSObjectDisposeProcPtr)JSValueWrapper::JSObjectDispose;

    callBacks.equal = (JSObjectEqualProcPtr)0;

    callBacks.copyPropertyNames = (JSObjectCopyPropertyNamesProcPtr)JSValueWrapper::JSObjectCopyPropertyNames;

    callBacks.copyCFValue = (JSObjectCopyCFValueProcPtr)JSValueWrapper::JSObjectCopyCFValue;

    callBacks.copyProperty = (JSObjectCopyPropertyProcPtr)JSValueWrapper::JSObjectCopyProperty;

    callBacks.setProperty = (JSObjectSetPropertyProcPtr)JSValueWrapper::JSObjectSetProperty;

    callBacks.callFunction = (JSObjectCallFunctionProcPtr)JSValueWrapper::JSObjectCallFunction;

}

void JSValueWrapper::JSObjectDispose(void *data)

{

    JSValueWrapper* ptr = (JSValueWrapper*)data;

    delete ptr;

}

CFArrayRef JSValueWrapper::JSObjectCopyPropertyNames(void *data)

{

    JSGlueAPIEntry entry;

    CFMutableArrayRef result = 0;

    JSValueWrapper* ptr = (JSValueWrapper*)data;

    if (ptr)

    {

        ExecState* exec = getThreadGlobalExecState();

        JSObject* object = ptr->GetValue().toObject(exec);

        PropertyNameArray propNames(exec);

        object->getPropertyNames(exec, propNames);

        PropertyNameArray::const_iterator iterator = propNames.begin();

        while (iterator != propNames.end()) {

            Identifier name = *iterator;

            CFStringRef nameStr = IdentifierToCFString(name);

            if (!result)

            {

                result = CFArrayCreateMutable(0, 0, &kCFTypeArrayCallBacks);

            }

            if (result && nameStr)

            {

                CFArrayAppendValue(result, nameStr);

            }

            ReleaseCFType(nameStr);

            iterator++;

        }

    }

    return result;

}

JSObjectRef JSValueWrapper::JSObjectCopyProperty(void *data, CFStringRef propertyName)

{

    JSGlueAPIEntry entry;

    JSObjectRef result = 0;

    JSValueWrapper* ptr = (JSValueWrapper*)data;

    if (ptr)

    {

        ExecState* exec = getThreadGlobalExecState();

        JSValue propValue = ptr->GetValue().toObject(exec)->get(exec, CFStringToIdentifier(propertyName, exec));

        JSValueWrapper* wrapperValue = new JSValueWrapper(propValue);

        JSObjectCallBacks callBacks;

        GetJSObectCallBacks(callBacks);

        result = JSObjectCreateInternal(wrapperValue, &callBacks, JSValueWrapper::JSObjectMark, kJSUserObjectDataTypeJSValueWrapper);

        if (!result)

        {

            delete wrapperValue;

        }

    }

    return result;

}

void JSValueWrapper::JSObjectSetProperty(void *data, CFStringRef propertyName, JSObjectRef jsValue)

{

    JSGlueAPIEntry entry;

    JSValueWrapper* ptr = (JSValueWrapper*)data;

    if (ptr)

    {

        ExecState* exec = getThreadGlobalExecState();

        JSValue value = JSObjectKJSValue((JSUserObject*)jsValue);

        JSObject *objValue = ptr->GetValue().toObject(exec);

        PutPropertySlot slot;

        objValue->put(exec, CFStringToIdentifier(propertyName, exec), value, slot);

    }

}

JSObjectRef JSValueWrapper::JSObjectCallFunction(void *data, JSObjectRef thisObj, CFArrayRef args)

{

    JSGlueAPIEntry entry;

    JSObjectRef result = 0;

    JSValueWrapper* ptr = (JSValueWrapper*)data;

    if (ptr)

    {

        ExecState* exec = getThreadGlobalExecState();

        JSValue value = JSObjectKJSValue((JSUserObject*)thisObj);

        JSObject* ksjThisObj = value.toObject(exec);

        JSObject* objValue = ptr->GetValue().toObject(exec);

        MarkedArgumentBuffer listArgs;

        CFIndex argCount = args ? CFArrayGetCount(args) : 0;

        for (CFIndex i = 0; i < argCount; i++)

        {

            JSObjectRef jsArg = (JSObjectRef)CFArrayGetValueAtIndex(args, i);

            JSValue kgsArg = JSObjectKJSValue((JSUserObject*)jsArg);

            listArgs.append(kgsArg);

        }

        CallData callData;

        CallType callType = objValue->getCallData(callData);

        if (callType == CallTypeNone)

            return 0;

        JSValue  resultValue = call(exec, objValue, callType, callData, ksjThisObj, listArgs);

        JSValueWrapper* wrapperValue = new JSValueWrapper(resultValue);

        JSObjectCallBacks callBacks;

        GetJSObectCallBacks(callBacks);

        result = JSObjectCreate(wrapperValue, &callBacks);

        if (!result)

        {

            delete wrapperValue;

        }

    }

    return result;

}

CFTypeRef JSValueWrapper::JSObjectCopyCFValue(void *data)

{

    JSGlueAPIEntry entry;

    CFTypeRef result = 0;

    JSValueWrapper* ptr = (JSValueWrapper*)data;

    if (ptr)

    {

        result = KJSValueToCFType(ptr->GetValue(), getThreadGlobalExecState());

    }

    return result;

}

void JSValueWrapper::JSObjectMark(void *data)

{

    JSValueWrapper* ptr = (JSValueWrapper*)data;

    if (ptr)

    {

        // This results in recursive marking but will be otherwise safe and correct.

        // We claim the array vptr is 0 because we don't have access to it here, and

        // claiming 0 is functionally harmless -- it merely means that we can't

        // devirtualise marking of arrays when recursing from this point.

        MarkStack markStack(0);

        markStack.append(ptr->fValue.get());

        markStack.drain();

    }

}