pjs/extensions/xmlterm/base/mozXMLTermStream.h

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/*
* The contents of this file are subject to the Mozilla Public
* License Version 1.1 (the "MPL"); you may not use this file
* except in compliance with the MPL. You may obtain a copy of
* the MPL at http://www.mozilla.org/MPL/
*
* Software distributed under the MPL is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
* implied. See the MPL for the specific language governing
* rights and limitations under the MPL.
*
* The Original Code is XMLterm.
*
* The Initial Developer of the Original Code is Ramalingam Saravanan.
* Portions created by Ramalingam Saravanan <svn@xmlterm.org> are
* Copyright (C) 1999 Ramalingam Saravanan. All Rights Reserved.
*
* Contributor(s):
*/
// mozXMLTermStream.h: declaration of mozXMLTermStream
// which implements the mozIXMLTermStream interface
// to display HTML/XML streams as documents
#include "nscore.h"
#include "nspr.h"
#include "nsCOMPtr.h"
#include "nsString.h"
#include "mozXMLT.h"
#include "mozIXMLTermStream.h"
class mozXMLTermStream : public mozIXMLTermStream
{
public:
mozXMLTermStream();
virtual ~mozXMLTermStream();
// nsISupports interface
NS_DECL_ISUPPORTS
// nsIInputStream interface
NS_IMETHOD Close(void);
NS_IMETHOD Available(PRUint32 *_retval);
NS_IMETHOD Read(char * buf, PRUint32 count, PRUint32 *_retval);
// mozIXMLTermStream interface
// Open stream in specified frame, or in current frame if frameName is null
NS_IMETHOD Open(nsIDOMWindow* aDOMWindow,
const char* frameName,
const char* contentURL,
const char* contentType,
PRInt32 maxResizeHeight);
// Write Unicode string to stream
NS_IMETHOD Write(const PRUnichar* buf);
protected:
/** Adjusts height of frame displaying stream to fit content
* @param maxHeight maximum height of resized frame (pixels)
* (zero value implies no maximum)
*/
NS_IMETHOD SizeToContentHeight(PRInt32 maxHeight);
/** UTF8 data buffer to hold to be read by rendering engine */
nsCString mUTF8Buffer;
/** offset at which to start reading the UTF8 data buffer */
PRInt32 mUTF8Offset;
/** maximum frame height for resizing */
PRInt32 mMaxResizeHeight;
/** DOM window in which to display stream */
nsCOMPtr<nsIDOMWindow> mDOMWindow;
/** Frame element in which to display stream */
nsCOMPtr<nsIDOMElement> mDOMIFrameElement;
#ifdef NO_WORKAROUND
/** Context for stream display (what's this??) */
nsCOMPtr<nsISupports> mContext;
/** Load group for stream display (what's this??) */
nsCOMPtr<nsILoadGroup> mLoadGroup;
/** Channel for stream display (what's this??) */
nsCOMPtr<nsIChannel> mChannel;
/** Stream listener object */
nsCOMPtr<nsIStreamListener> mStreamListener;
#else // !NO_WORKAROUND
nsCOMPtr<nsIDOMHTMLDocument> mDOMHTMLDocument;
#endif // !NO_WORKAROUND
};