/*

 * 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,

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 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

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 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

 */

#ifndef WebDataSourceImpl_h

#define WebDataSourceImpl_h

#include "DocumentLoader.h"

#include "KURL.h"

#include "WebDataSource.h"

#include "WebPluginLoadObserver.h"

#include "WrappedResourceRequest.h"

#include "WrappedResourceResponse.h"

#include <wtf/OwnPtr.h>

#include <wtf/PassOwnPtr.h>

#include <wtf/Vector.h>

namespace WebKit {

class WebPluginLoadObserver;

class WebDataSourceImpl : public WebCore::DocumentLoader, public WebDataSource {

public:

    static PassRefPtr<WebDataSourceImpl> create(const WebCore::ResourceRequest&,

                                                const WebCore::SubstituteData&);

    static WebDataSourceImpl* fromDocumentLoader(WebCore::DocumentLoader* loader)

    {

        return static_cast<WebDataSourceImpl*>(loader);

    }

    // WebDataSource methods:

    virtual const WebURLRequest& originalRequest() const;

    virtual const WebURLRequest& request() const;

    virtual const WebURLResponse& response() const;

    virtual bool hasUnreachableURL() const;

    virtual WebURL unreachableURL() const;

    virtual void redirectChain(WebVector<WebURL>&) const;

    virtual WebString pageTitle() const;

    virtual WebNavigationType navigationType() const;

    virtual double triggeringEventTime() const;

    virtual ExtraData* extraData() const;

    virtual void setExtraData(ExtraData*);

    virtual WebApplicationCacheHost* applicationCacheHost();

    static WebNavigationType toWebNavigationType(WebCore::NavigationType type);

    bool hasRedirectChain() const { return !m_redirectChain.isEmpty(); }

    const WebCore::KURL& endOfRedirectChain() const;

    void clearRedirectChain();

    void appendRedirect(const WebCore::KURL& url);

    PassOwnPtr<WebPluginLoadObserver> releasePluginLoadObserver() { return m_pluginLoadObserver.release(); }

    static void setNextPluginLoadObserver(PassOwnPtr<WebPluginLoadObserver>);

private:

    WebDataSourceImpl(const WebCore::ResourceRequest&, const WebCore::SubstituteData&);

    ~WebDataSourceImpl();

    // Mutable because the const getters will magically sync these to the

    // latest version from WebKit.

    mutable WrappedResourceRequest m_originalRequestWrapper;

    mutable WrappedResourceRequest m_requestWrapper;

    mutable WrappedResourceResponse m_responseWrapper;

    // Lists all intermediate URLs that have redirected for the current provisional load.

    // See WebFrameLoaderClient::dispatchDidReceiveServerRedirectForProvisionalLoad for a

    // description of who modifies this when to keep it up to date.

    Vector<WebCore::KURL> m_redirectChain;

    OwnPtr<ExtraData> m_extraData;

    OwnPtr<WebPluginLoadObserver> m_pluginLoadObserver;

    static WebPluginLoadObserver* m_nextPluginLoadObserver;

};

} // namespace WebKit

#endif  // WebDataSourceImpl_h