/*

 * Copyright (C) 2009 Google Inc. All rights reserved.

 *

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 * 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.

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 * 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,

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 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,

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 */

#include "config.h"

#include "StorageEventDispatcherImpl.h"

#if ENABLE(DOM_STORAGE)

#include "DOMWindow.h"

#include "EventNames.h"

#include "Frame.h"

#include "KURL.h"

#include "Page.h"

#include "PageGroup.h"

#include "SecurityOrigin.h"

#include "StorageEvent.h"

namespace WebCore {

StorageEventDispatcherImpl::StorageEventDispatcherImpl(const String& groupName)

    : m_pageGroup(PageGroup::pageGroup(groupName))

{

    ASSERT(m_pageGroup);

}

void StorageEventDispatcherImpl::dispatchStorageEvent(const String& key, const String& oldValue,

                                                      const String& newValue, SecurityOrigin* securityOrigin,

                                                      const KURL& url, StorageType storageType)

{

    // FIXME: Implement

    if (storageType == SessionStorage)

        return;

    // We need to copy all relevant frames from every page to a vector since sending the event to one frame might mutate the frame tree

    // of any given page in the group or mutate the page group itself.

    Vector<RefPtr<Frame> > frames;

    const HashSet<Page*>& pages = m_pageGroup->pages();

    HashSet<Page*>::const_iterator end = pages.end();

    for (HashSet<Page*>::const_iterator it = pages.begin(); it != end; ++it) {

        for (Frame* frame = (*it)->mainFrame(); frame; frame = frame->tree()->traverseNext()) {

            if (frame->document()->securityOrigin()->equal(securityOrigin))

                frames.append(frame);

        }

    }

    for (unsigned i = 0; i < frames.size(); ++i) {

        ExceptionCode ec = 0;

        Storage* storage = frames[i]->domWindow()->localStorage(ec);

        if (!ec)

            frames[i]->document()->dispatchWindowEvent(StorageEvent::create(eventNames().storageEvent, key, oldValue, newValue, url, storage));

    }

}

} // namespace WebCore

#endif // ENABLE(DOM_STORAGE)