/*

 * Copyright (C) 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.

 * Copyright (C) 2006 Alexey Proskuryakov (ap@nypop.com)

 * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)

 * Copyright (C) 2008 Eric Seidel <eric@webkit.org>

 *

 * 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. 

 */

#import "config.h"

#import "ScriptController.h"

#import "Bridge.h"

#import "DOMAbstractViewFrame.h"

#import "DOMWindow.h"

#import "Frame.h"

#import "FrameLoader.h"

#import "FrameLoaderClient.h"

#import "JSDOMWindow.h"

#import "WebScriptObjectPrivate.h"

#import "Widget.h"

#import "objc_instance.h"

#import "runtime_root.h"

#import <JavaScriptCore/APICast.h>

#import <runtime/JSLock.h>

#if ENABLE(NETSCAPE_PLUGIN_API)

#import "c_instance.h"

#import "NP_jsobject.h"

#import "npruntime_impl.h"

#endif

#if ENABLE(JAVA_BRIDGE)

#import "JavaInstanceJSC.h"

#endif

@interface NSObject (WebPlugin)

- (id)objectForWebScript;

- (NPObject *)createPluginScriptableObject;

- (PassRefPtr<JSC::Bindings::Instance>)createPluginBindingsInstance:(PassRefPtr<JSC::Bindings::RootObject>)rootObject;

@end

using namespace JSC::Bindings;

namespace WebCore {

PassScriptInstance ScriptController::createScriptInstanceForWidget(Widget* widget)

{

    NSView* widgetView = widget->platformWidget();

    if (!widgetView)

        return 0;

    RefPtr<RootObject> rootObject = createRootObject(widgetView);

    if ([widgetView respondsToSelector:@selector(createPluginBindingsInstance:)])

        return [widgetView createPluginBindingsInstance:rootObject.release()];

    if ([widgetView respondsToSelector:@selector(objectForWebScript)]) {

        id objectForWebScript = [widgetView objectForWebScript];

        if (!objectForWebScript)

            return 0;

        return JSC::Bindings::ObjcInstance::create(objectForWebScript, rootObject.release());

    }

    if ([widgetView respondsToSelector:@selector(createPluginScriptableObject)]) {

#if !ENABLE(NETSCAPE_PLUGIN_API)

        return 0;

#else

        NPObject* npObject = [widgetView createPluginScriptableObject];

        if (!npObject)

            return 0;

        RefPtr<Instance> instance = JSC::Bindings::CInstance::create(npObject, rootObject.release());

        // -createPluginScriptableObject returns a retained NPObject.  The caller is expected to release it.

        _NPN_ReleaseObject(npObject);

        return instance.release();

#endif

    }

#if ENABLE(JAVA_BRIDGE)

    jobject applet = m_frame->loader()->client()->javaApplet(widgetView);

    if (!applet)

        return 0;

    return JSC::Bindings::JavaInstance::create(applet, rootObject.release());

#else

    return 0;

#endif

}

WebScriptObject* ScriptController::windowScriptObject()

{

    if (!canExecuteScripts(NotAboutToExecuteScript))

        return 0;

    if (!m_windowScriptObject) {

        JSC::JSLock lock(JSC::SilenceAssertionsOnly);

        JSC::Bindings::RootObject* root = bindingRootObject();

        m_windowScriptObject = [WebScriptObject scriptObjectForJSObject:toRef(windowShell(pluginWorld())) originRootObject:root rootObject:root];

    }

    ASSERT([m_windowScriptObject.get() isKindOfClass:[DOMAbstractView class]]);

    return m_windowScriptObject.get();

}

void ScriptController::updatePlatformScriptObjects()

{

    if (m_windowScriptObject) {

        JSC::Bindings::RootObject* root = bindingRootObject();

        [m_windowScriptObject.get() _setOriginRootObject:root andRootObject:root];

    }

}

void ScriptController::disconnectPlatformScriptObjects()

{

    if (m_windowScriptObject) {

        ASSERT([m_windowScriptObject.get() isKindOfClass:[DOMAbstractView class]]);

        [(DOMAbstractView *)m_windowScriptObject.get() _disconnectFrame];

    }

}

#if ENABLE(JAVA_BRIDGE)

static pthread_t mainThread;

static void updateStyleIfNeededForBindings(JSC::ExecState*, JSC::JSObject* rootObject)

{

    if (pthread_self() != mainThread)

        return;

    if (!rootObject)

        return;

    JSDOMWindow* window = static_cast<JSDOMWindow*>(rootObject);

    if (!window)

        return;

    Frame* frame = window->impl()->frame();

    if (!frame)

        return;

    frame->document()->updateStyleIfNeeded();

}

void ScriptController::initJavaJSBindings()

{

    mainThread = pthread_self();

    JSC::Bindings::JavaJSObject::initializeJNIThreading();

    JSC::Bindings::Instance::setDidExecuteFunction(updateStyleIfNeededForBindings);

}

#endif

}