/*

 * Copyright (C) 2009 Google 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:

 *

 *     * Redistributions of source code must retain the above copyright

 * notice, this list of conditions and the following disclaimer.

 *     * 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.

 *     * Neither the name of Google Inc. 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 THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT

 * OWNER 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 "ScriptState.h"

#include "Frame.h"

#include "JSDOMWindowBase.h"

#include "Node.h"

#include "Page.h"

namespace WebCore {

ScriptState* mainWorldScriptState(Frame* frame)

{

    JSDOMWindowShell* shell = frame->script()->windowShell(mainThreadNormalWorld());

    return shell->window()->globalExec();

}

ScriptState* scriptStateFromNode(DOMWrapperWorld* world, Node* node)

{

    if (!node)

        return 0;

    Document* document = node->document();

    if (!document)

        return 0;

    Frame* frame = document->frame();

    if (!frame)

        return 0;

    if (!frame->script()->canExecuteScripts(NotAboutToExecuteScript))

        return 0;

    return frame->script()->globalObject(world)->globalExec();

}

ScriptState* scriptStateFromPage(DOMWrapperWorld* world, Page* page)

{

    return page->mainFrame()->script()->globalObject(world)->globalExec();

}

}