gecko-dev/modules/plugin/nglsrc/ns4xPluginStream.h

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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.
*/
#ifndef ns4xPluginStream_h__
#define ns4xPluginStream_h__
#define _UINT32
#define _INT32
#include "jri.h" // XXX should be jni.h
#include "nsplugin.h"
#include "ns4xPluginInstance.h"
////////////////////////////////////////////////////////////////////////
/**
* A 5.0 wrapper for a 4.x plugin stream.
*/
class ns4xPluginStream : public nsIPluginStream
{
public:
/**
* Construct a new 4.x plugin stream associated with the specified
* instance and stream peer.
*/
ns4xPluginStream();
~ns4xPluginStream();
NS_DECL_ISUPPORTS
/**
* Do internal initialization. This actually calls into the 4.x plugin
* to create the stream, and may fail (which is why it's separate from
* the constructor).
*/
NS_METHOD
Initialize(ns4xPluginInstance* instance, nsIPluginStreamPeer* peer);
////////////////////////////////////////////////////////////////////////
// nsIPluginStream methods
// (Corresponds to NPP_Write and NPN_Write.)
NS_IMETHOD
Write(const char* buffer, PRUint32 offset, PRUint32 len, PRUint32 *aWriteCount);
// (Corresponds to NPP_NewStream's stype return parameter.)
NS_IMETHOD
GetStreamType(nsPluginStreamType *result);
// (Corresponds to NPP_StreamAsFile.)
NS_IMETHOD
AsFile(const char* fname);
NS_IMETHOD
Close(void);
////////////////////////////////////////////////////////////////////////
// Methods specific to ns4xPluginStream
protected:
/**
* The plugin instance to which this stream belongs.
*/
ns4xPluginInstance* fInstance;
/**
* The peer associated with this stream.
*/
nsIPluginStreamPeer* fPeer;
/**
* The type of stream, for the peer's use.
*/
nsPluginStreamType fStreamType;
/**
* The 4.x-style structure used to contain stream information.
* This is what actually gets used to communicate with the plugin.
*/
NPStream fNPStream;
/**
* Set to <b>TRUE</b> if the peer implements
* <b>NPISeekablPluginStreamPeer</b>.
*/
PRBool fSeekable;
/**
* Tracks the position in the content that is being
* read. 4.x-style plugins expect to be told the offset in the
* buffer that they should read <i>to</i>, even though it's always
* done serially.
*/
PRUint32 fPosition;
};
#endif // ns4xPluginStream_h__