/*

 * Copyright (C) 2007 Apple 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 "DumpRenderTree.h"

#include "GCController.h"

#include <JavaScriptCore/JSObjectRef.h>

#include <JavaScriptCore/JSRetainPtr.h>

GCController::GCController()

{

}

GCController::~GCController()

{

}

// Static Functions

static JSValueRef collectCallback(JSContextRef context, JSObjectRef function, JSObjectRef thisObject, size_t argumentCount, const JSValueRef arguments[], JSValueRef* exception)

{

    GCController* controller = reinterpret_cast<GCController*>(JSObjectGetPrivate(thisObject));

    controller->collect();

    return JSValueMakeUndefined(context);

}

static JSValueRef collectOnAlternateThreadCallback(JSContextRef context, JSObjectRef function, JSObjectRef thisObject, size_t argumentCount, const JSValueRef arguments[], JSValueRef* exception)

{

    bool waitUntilDone = false;

    if (argumentCount > 0)

        waitUntilDone = JSValueToBoolean(context, arguments[0]);

    GCController* controller = reinterpret_cast<GCController*>(JSObjectGetPrivate(thisObject));

    controller->collectOnAlternateThread(waitUntilDone);

    return JSValueMakeUndefined(context);

}

static JSValueRef getJSObjectCountCallback(JSContextRef context, JSObjectRef function, JSObjectRef thisObject, size_t argumentCount, const JSValueRef arguments[], JSValueRef* exception)

{

    GCController* controller = reinterpret_cast<GCController*>(JSObjectGetPrivate(thisObject));

    size_t jsObjectCount = controller->getJSObjectCount();

    return JSValueMakeNumber(context, jsObjectCount);

}

// Object Creation

void GCController::makeWindowObject(JSContextRef context, JSObjectRef windowObject, JSValueRef* exception)

{

    JSRetainPtr<JSStringRef> gcControllerStr(Adopt, JSStringCreateWithUTF8CString("GCController"));

    JSValueRef gcControllerObject = JSObjectMake(context, getJSClass(), this);

    JSObjectSetProperty(context, windowObject, gcControllerStr.get(), gcControllerObject, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontDelete, exception);

}

JSClassRef GCController::getJSClass()

{

    static JSClassRef gcControllerClass = 0;

    if (!gcControllerClass) {

        JSStaticFunction* staticFunctions = GCController::staticFunctions();

        JSClassDefinition classDefinition = {

            0, kJSClassAttributeNone, "GCController", 0, 0, staticFunctions,

            0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0

        };

        gcControllerClass = JSClassCreate(&classDefinition);

    }

    return gcControllerClass;

}

JSStaticFunction* GCController::staticFunctions()

{

    static JSStaticFunction staticFunctions[] = {

        { "collect", collectCallback, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontDelete },

        { "collectOnAlternateThread", collectOnAlternateThreadCallback, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontDelete },

        { "getJSObjectCount", getJSObjectCountCallback, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontDelete },

        { 0, 0, 0 }

    };

    return staticFunctions;

}