/*
 * DO NOT EDIT.  THIS FILE IS GENERATED FROM nsIProgressEventSink.idl
 */

#ifndef __gen_nsIProgressEventSink_h__
#define __gen_nsIProgressEventSink_h__


#ifndef __gen_nsISupports_h__
#include "nsISupports.h"
#endif

/* For IDL files that don't want to include root IDL files. */
#ifndef NS_NO_VTABLE
#define NS_NO_VTABLE
#endif
class nsIURI; /* forward declaration */

class nsIRequest; /* forward declaration */


/* starting interface:    nsIProgressEventSink */
#define NS_IPROGRESSEVENTSINK_IID_STR "dd47ee00-18c2-11d3-9337-00104ba0fd40"

#define NS_IPROGRESSEVENTSINK_IID \
  {0xdd47ee00, 0x18c2, 0x11d3, \
    { 0x93, 0x37, 0x00, 0x10, 0x4b, 0xa0, 0xfd, 0x40 }}

/**
 * nsIProgressEventSink
 *
 * This interface is used to asynchronously convey channel status and progress
 * information that is generally not critical to the processing of the channel.
 * The information is intended to be displayed to the user in some meaningful
 * way.
 *
 * An implementation of this interface can be passed to a channel via the
 * channel's notificationCallbacks attribute.  See nsIChannel for more info.
 *
 * The channel will begin passing notifications to the progress event sink
 * after its asyncOpen method has been called.  Notifications will cease once
 * the channel calls its listener's onStopRequest method or once the channel
 * is canceled (via nsIRequest::cancel).
 *
 * NOTE: This interface is actually not specific to channels and may be used
 * with other implementations of nsIRequest.
 *
 * @status UNDER_REVIEW
 */
class NS_NO_VTABLE nsIProgressEventSink : public nsISupports {
 public: 

  NS_DEFINE_STATIC_IID_ACCESSOR(NS_IPROGRESSEVENTSINK_IID)

  /**
     * Called to notify the event sink that progress has occurred for the
     * given request.
     *
     * @param aRequest
     *        the request being observed (may QI to nsIChannel).
     * @param aContext
     *        if aRequest is a channel, then this parameter is the listener
     *        context passed to nsIChannel::asyncOpen.
     * @param aProgress
     *        numeric value in the range 0 to aProgressMax indicating the
     *        number of bytes transfered thus far.
     * @param aProgressMax
     *        numeric value indicating maximum number of bytes that will be
     *        transfered (or 0xFFFFFFFF if total is unknown).
     */
  /* void onProgress (in nsIRequest aRequest, in nsISupports aContext, in unsigned long aProgress, in unsigned long aProgressMax); */
  NS_IMETHOD OnProgress(nsIRequest *aRequest, nsISupports *aContext, PRUint32 aProgress, PRUint32 aProgressMax) = 0;

  /**
     * Called to notify the event sink with a status message for the given
     * request.
     *
     * @param aRequest
     *        the request being observed (may QI to nsIChannel).
     * @param aContext
     *        if aRequest is a channel, then this parameter is the listener
     *        context passed to nsIChannel::asyncOpen.
     * @param aStatus
     *        status code (not necessarily an error code) indicating the
     *        state of the channel (usually the state of the underlying
     *        transport).  see nsISocketTransport for socket specific status
     *        codes.
     * @param aStatusArg
     *        status code argument to be used with the string bundle service
     *        to convert the status message into localized, human readable
     *        text.  the meaning of this parameter is specific to the value
     *        of the status code.  for socket status codes, this parameter
     *        indicates the host:port associated with the status code.
     */
  /* void onStatus (in nsIRequest aRequest, in nsISupports aContext, in nsresult aStatus, in wstring aStatusArg); */
  NS_IMETHOD OnStatus(nsIRequest *aRequest, nsISupports *aContext, nsresult aStatus, const PRUnichar *aStatusArg) = 0;

};

/* Use this macro when declaring classes that implement this interface. */
#define NS_DECL_NSIPROGRESSEVENTSINK \
  NS_IMETHOD OnProgress(nsIRequest *aRequest, nsISupports *aContext, PRUint32 aProgress, PRUint32 aProgressMax); \
  NS_IMETHOD OnStatus(nsIRequest *aRequest, nsISupports *aContext, nsresult aStatus, const PRUnichar *aStatusArg); 

/* Use this macro to declare functions that forward the behavior of this interface to another object. */
#define NS_FORWARD_NSIPROGRESSEVENTSINK(_to) \
  NS_IMETHOD OnProgress(nsIRequest *aRequest, nsISupports *aContext, PRUint32 aProgress, PRUint32 aProgressMax) { return _to OnProgress(aRequest, aContext, aProgress, aProgressMax); } \
  NS_IMETHOD OnStatus(nsIRequest *aRequest, nsISupports *aContext, nsresult aStatus, const PRUnichar *aStatusArg) { return _to OnStatus(aRequest, aContext, aStatus, aStatusArg); } 

/* Use this macro to declare functions that forward the behavior of this interface to another object in a safe way. */
#define NS_FORWARD_SAFE_NSIPROGRESSEVENTSINK(_to) \
  NS_IMETHOD OnProgress(nsIRequest *aRequest, nsISupports *aContext, PRUint32 aProgress, PRUint32 aProgressMax) { return !_to ? NS_ERROR_NULL_POINTER : _to->OnProgress(aRequest, aContext, aProgress, aProgressMax); } \
  NS_IMETHOD OnStatus(nsIRequest *aRequest, nsISupports *aContext, nsresult aStatus, const PRUnichar *aStatusArg) { return !_to ? NS_ERROR_NULL_POINTER : _to->OnStatus(aRequest, aContext, aStatus, aStatusArg); } 

#if 0
/* Use the code below as a template for the implementation class for this interface. */

/* Header file */
class nsProgressEventSink : public nsIProgressEventSink
{
public:
  NS_DECL_ISUPPORTS
  NS_DECL_NSIPROGRESSEVENTSINK

  nsProgressEventSink();

private:
  ~nsProgressEventSink();

protected:
  /* additional members */
};

/* Implementation file */
NS_IMPL_ISUPPORTS1(nsProgressEventSink, nsIProgressEventSink)

nsProgressEventSink::nsProgressEventSink()
{
  /* member initializers and constructor code */
}

nsProgressEventSink::~nsProgressEventSink()
{
  /* destructor code */
}

/* void onProgress (in nsIRequest aRequest, in nsISupports aContext, in unsigned long aProgress, in unsigned long aProgressMax); */
NS_IMETHODIMP nsProgressEventSink::OnProgress(nsIRequest *aRequest, nsISupports *aContext, PRUint32 aProgress, PRUint32 aProgressMax)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* void onStatus (in nsIRequest aRequest, in nsISupports aContext, in nsresult aStatus, in wstring aStatusArg); */
NS_IMETHODIMP nsProgressEventSink::OnStatus(nsIRequest *aRequest, nsISupports *aContext, nsresult aStatus, const PRUnichar *aStatusArg)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* End of implementation class template. */
#endif


#endif /* __gen_nsIProgressEventSink_h__ */
