#include "precompiled.h"

/*
 * wxJavaScript - fistream.cpp
 *
 * Copyright (c) 2002-2007 Franky Braem and the wxJavaScript project
 *
 * Project Info: http://www.wxjavascript.net or http://wxjs.sourceforge.net
 *
 * This library is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation; either version 2.1 of the License, or
 * (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
 * License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
 * USA.
 *
 * $Id: fistream.cpp 598 2007-03-07 20:13:28Z fbraem $
 */
#include <wx/wxprec.h>
#ifndef WX_PRECOMP
    #include <wx/wx.h>
#endif

#include "../common/main.h"

#include "file.h"
#include "stream.h"
#include "fistream.h"

using namespace wxjs;
using namespace wxjs::io;

/***
 * <file>fistream</file>
 * <module>io</module>
 * <class name="wxFileInputStream" prototype="@wxInputStream" version="0.8.2">
 *  This class represents data read in from a file. There are actually two such groups of classes: 
 *  this one is based on @wxFile whereas @wxFFileInputStream is based on the @wxFFile class.
 *  An example:
 *  <pre><code class="whjs">
 *   var fis = new wxFileInputStream("c:\\temp\\test.txt");
 *   if ( fis.ok )
 *   {
 *     var bis = new wxBufferedInputStream(fis);
 *     while(! bis.eof )
 *     {
 *       var buffer = new wxMemoryBuffer(100);
 *       bis.read(buffer);
 *       buffer.dataLength = bis.lastRead;
 *       ...
 *     }
 *   }</code></pre>
 * </class>
 */
WXJS_INIT_CLASS(FileInputStream, "wxFileInputStream", 1)

/***
 * <ctor>
 *  <function>
 *   <arg name="FileName" type="String">The name of a file</arg>
 *  </function>
 *  <function>
 *   <arg name="File" type="@wxFile" />
 *  </function>
 *  <function>
 *   <arg name="Fd" type="Integer">A file descriptor</arg>
 *  </function>
 *  <desc>
 *   Constructs a new wxFileInputStream object. A wxFileInputStream is
 *   always opened in read-only mode.
 *  </desc>
 * </ctor>
 */
Stream* FileInputStream::Construct(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, bool constructing)
{
    if ( File::HasPrototype(cx, argv[0]) )
    {
        wxFile *file = File::GetPrivate(cx, argv[0], false);
		// This is needed, because otherwise the file can be garbage collected.
		// Another method could be to root file, but how are we going to unroot it?
		JS_DefineProperty(cx, obj, "__file__", argv[0], NULL, NULL, JSPROP_READONLY);
        return new Stream(new wxFileInputStream(*file));
    }
    else if ( JSVAL_IS_STRING(argv[0]) )
    {
        wxString name;
        FromJS(cx, argv[0], name);
        return new Stream(new wxFileInputStream(name));
    }
    else if ( JSVAL_IS_INT(argv[0]) )
    {
        int fd;
        if ( FromJS(cx, argv[0], fd) )
            return new Stream(new wxFileInputStream(fd));
    }
    return NULL;
}