Source/WebKit2/WebProcess/Plugins/Netscape/NetscapePluginStream.h

/*
 * Copyright (C) 2010 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.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE INC. 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 INC. 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.
 */

#ifndef NetscapePluginStream_h
#define NetscapePluginStream_h

#include "RunLoop.h"
#include <WebCore/FileSystem.h>
#include <WebCore/npruntime_internal.h>
#include <wtf/Forward.h>
#include <wtf/PassRefPtr.h>
#include <wtf/RefCounted.h>
#include <wtf/RefPtr.h>
#include <wtf/text/CString.h>

namespace WebCore {
    class KURL;
}

namespace WebKit {

class NetscapePlugin;

class NetscapePluginStream : public RefCounted<NetscapePluginStream> {
public:
    static PassRefPtr<NetscapePluginStream> create(PassRefPtr<NetscapePlugin> plugin, uint64_t streamID, bool sendNotification, void* notificationData)
    {
        return adoptRef(new NetscapePluginStream(plugin, streamID, sendNotification, notificationData));
    }
    ~NetscapePluginStream();

    uint64_t streamID() const { return m_streamID; }
    const NPStream* npStream() const { return &m_npStream; }

    void didReceiveResponse(const WebCore::KURL& responseURL, uint32_t streamLength,
                            uint32_t lastModifiedTime, const String& mimeType, const String& headers);
    void didReceiveData(const char* bytes, int length);
    void didFinishLoading();
    void didFail(bool wasCancelled);

    void sendJavaScriptStream(const String& requestURLString, const String& result);

    void stop(NPReason);
    NPError destroy(NPReason);

private:
    NetscapePluginStream(PassRefPtr<NetscapePlugin>, uint64_t streamID, bool sendNotification, void* notificationData);

    bool start(const String& responseURLString, uint32_t streamLength, 
               uint32_t lastModifiedTime, const String& mimeType, const String& headers);

    void cancel();
    void notifyAndDestroyStream(NPReason);

    void deliverData(const char* bytes, int length);
    void deliverDataToPlugin();
    void deliverDataToFile(const char* bytes, int length);

    RefPtr<NetscapePlugin> m_plugin;
    uint64_t m_streamID;
    
    bool m_sendNotification;
    void* m_notificationData;

    NPStream m_npStream;
    uint16_t m_transferMode;
    int32_t m_offset;

    String m_filePath;
    WebCore::PlatformFileHandle m_fileHandle;
    
    // Whether NPP_NewStream has successfully been called.
    bool m_isStarted;

#if !ASSERT_DISABLED
    bool m_urlNotifyHasBeenCalled;
#endif

    CString m_responseURL;
    CString m_mimeType;
    CString m_headers;

    RunLoop::Timer<NetscapePluginStream> m_deliveryDataTimer;
    OwnPtr< Vector<uint8_t> > m_deliveryData;
    bool m_stopStreamWhenDoneDelivering;
};

} // namespace WebKit

#endif // NetscapePluginStream_h