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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* The contents of this file are subject to the Netscape Public License
* Version 1.0 (the "NPL"); you may not use this file except in
* compliance with the NPL. You may obtain a copy of the NPL at
* http://www.mozilla.org/NPL/
*
* Software distributed under the NPL is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
* for the specific language governing rights and limitations under the
* NPL.
*
* The Initial Developer of this code under the NPL is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All Rights
* Reserved.
*/
#include "ns4xPluginStream.h"
#include "prlog.h" // for PR_ASSERT
////////////////////////////////////////////////////////////////////////
ns4xPluginStream::ns4xPluginStream(void)
: fStreamType(nsPluginStreamType_Normal), fSeekable(PR_FALSE), fPosition(0)
{
NS_INIT_REFCNT();
fPeer = nsnull;
fInstance = nsnull;
// Initialize the 4.x interface structure
memset(&fNPStream, 0, sizeof(fNPStream));
}
ns4xPluginStream::~ns4xPluginStream(void)
{
const NPPluginFuncs *callbacks;
NPP npp;
nsPluginReason reason;
fInstance->GetCallbacks(&callbacks);
fInstance->GetNPP(&npp);
fPeer->GetReason(&reason);
if (callbacks->destroystream != NULL)
{
CallNPP_DestroyStreamProc(callbacks->destroystream,
npp,
&fNPStream,
reason);
}
NS_IF_RELEASE(fPeer);
NS_IF_RELEASE(fInstance);
}
////////////////////////////////////////////////////////////////////////
NS_IMPL_ADDREF(ns4xPluginStream);
NS_IMPL_RELEASE(ns4xPluginStream);
static NS_DEFINE_IID(kISupportsIID, NS_ISUPPORTS_IID);
static NS_DEFINE_IID(kIPluginStreamIID, NS_IPLUGINSTREAM_IID);
static NS_DEFINE_IID(kISeekablePluginStreamPeerIID, NS_ISEEKABLEPLUGINSTREAMPEER_IID);
NS_IMETHODIMP ns4xPluginStream::QueryInterface(const nsIID& iid, void** instance)
{
if (instance == NULL)
return NS_ERROR_NULL_POINTER;
if (iid.Equals(kIPluginStreamIID))
{
*instance = (void *)(nsIPluginStream *)this;
AddRef();
return NS_OK;
}
else if (iid.Equals(kISupportsIID))
{
*instance = (void *)(nsISupports *)this;
AddRef();
return NS_OK;
}
return NS_NOINTERFACE;
}
////////////////////////////////////////////////////////////////////////
NS_IMETHODIMP ns4xPluginStream::Initialize(ns4xPluginInstance* instance,
nsIPluginStreamPeer* peer)
{
fInstance = instance;
fPeer = peer;
NS_ASSERTION(fInstance != NULL, "null instance");
NS_ADDREF(fInstance);
NS_ASSERTION(fPeer != NULL, "null peer");
NS_ADDREF(fPeer);
const char *url;
PRUint32 length, modified;
fPeer->GetURL(&url);
fPeer->GetEnd(&length);
fPeer->GetLastModified(&modified);
fNPStream.ndata = (void*) fPeer;
fNPStream.url = url;
fNPStream.end = length;
fNPStream.lastmodified = modified;
// Are we seekable?
nsISupports* seekablePeer;
if (fPeer->QueryInterface(kISeekablePluginStreamPeerIID,
(void**) &seekablePeer) == NS_OK)
{
fSeekable = TRUE;
NS_RELEASE(seekablePeer);
}
const NPPluginFuncs *callbacks;
NPP npp;
nsMIMEType mimetype;
fInstance->GetCallbacks(&callbacks);
fInstance->GetNPP(&npp);
fPeer->GetMIMEType(&mimetype);
if (callbacks->newstream == NULL)
return NS_ERROR_FAILURE;
PRUint16 streamType = (PRUint16) fStreamType;
nsresult error
= (nsresult)CallNPP_NewStreamProc(callbacks->newstream,
npp,
(char *)mimetype,
&fNPStream,
fSeekable,
&streamType);
fStreamType = (nsPluginStreamType) streamType;
return error;
}
NS_IMETHODIMP ns4xPluginStream::Write(const char* buffer, PRInt32 offset, PRInt32 len, PRInt32 *aWriteCount)
{
const NPPluginFuncs *callbacks;
NPP npp;
PRInt32 remaining = len;
fInstance->GetCallbacks(&callbacks);
fInstance->GetNPP(&npp);
if (callbacks->write == NULL)
return NS_OK;
while (remaining > 0)
{
PRInt32 numtowrite;
if (callbacks->writeready != NULL)
{
numtowrite = CallNPP_WriteReadyProc(callbacks->writeready,
npp,
&fNPStream);
if (numtowrite > remaining)
numtowrite = remaining;
}
else
numtowrite = len;
*aWriteCount = CallNPP_WriteProc(callbacks->write,
npp,
&fNPStream,
fPosition,
numtowrite,
(void *)buffer);
remaining -= numtowrite;
}
fPosition += len;
return NS_OK; //XXX this seems bad...
}
NS_IMETHODIMP ns4xPluginStream::GetStreamType(nsPluginStreamType *result)
{
*result = fStreamType;
return NS_OK;
}
NS_IMETHODIMP ns4xPluginStream::AsFile(const char* filename)
{
const NPPluginFuncs *callbacks;
NPP npp;
fInstance->GetCallbacks(&callbacks);
fInstance->GetNPP(&npp);
if (callbacks->asfile == NULL)
return NS_OK;
CallNPP_StreamAsFileProc(callbacks->asfile,
npp,
&fNPStream,
filename);
return NS_OK;
}
NS_IMETHODIMP ns4xPluginStream :: Close(void)
{
return NS_OK;
}
////////////////////////////////////////////////////////////////////////
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