146 lines
4.0 KiB
C++
146 lines
4.0 KiB
C++
#include "precompiled.h"
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/*
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* wxJavaScript - zistream.cpp
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*
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* Copyright (c) 2002-2007 Franky Braem and the wxJavaScript project
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*
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* Project Info: http://www.wxjavascript.net or http://wxjs.sourceforge.net
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*
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* This library is free software; you can redistribute it and/or modify it
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* under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation; either version 2.1 of the License, or
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* (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
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* License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
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* USA.
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*
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* $Id: zistream.cpp 759 2007-06-12 21:13:52Z fbraem $
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*/
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#include <wx/wxprec.h>
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#ifndef WX_PRECOMP
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#include <wx/wx.h>
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#endif
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#include "../common/main.h"
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#include "../ext/wxjs_ext.h"
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#include "../ext/jsmembuf.h"
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#include "stream.h"
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#include "istream.h"
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#include "zistream.h"
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#include "zipentry.h"
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using namespace wxjs;
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using namespace wxjs::io;
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ZipInputStream::ZipInputStream(wxInputStream &str) : wxZipInputStream(str)
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{
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}
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/***
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* <file>zistream</file>
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* <module>io</module>
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* <class name="wxZipInputStream" protoype="@wxArchiveInputStream" version="0.8.3">
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* Input stream for reading zip files.
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* </class>
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*/
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WXJS_INIT_CLASS(ZipInputStream, "wxZipInputStream", 1)
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/***
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* <ctor>
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* <function>
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* <arg name="Stream" type="@wxInputStream">An input stream</arg>
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* </function>
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* <desc>
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* Constructs a new wxZipInputStream object.
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* </desc>
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* </ctor>
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*/
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Stream* ZipInputStream::Construct(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, bool constructing)
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{
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if ( InputStream::HasPrototype(cx, argv[0]) )
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{
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Stream *in = InputStream::GetPrivate(cx, argv[0], false);
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// This is needed, because otherwise the stream can be garbage collected.
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// Another method could be to root the stream, but how are we going to unroot it?
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JS_DefineProperty(cx, obj, "__stream__", argv[0], NULL, NULL, JSPROP_READONLY);
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ZipInputStream *stream = new ZipInputStream(*(wxInputStream*) in->GetStream());
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stream->m_refStream = *in;
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return new Stream(stream);
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}
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return NULL;
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}
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void ZipInputStream::Destruct(JSContext *cx, Stream *p)
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{
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if ( p != NULL )
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{
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ZipInputStream *stream = (ZipInputStream*) p->GetStream();
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// Keep stream alive for a moment, so that the base class
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// doesn't crash when it flushes the stream.
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Stream tempRefStream(stream->m_refStream);
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delete p;
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p = NULL;
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}
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}
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/***
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* <properties>
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* <property name="comment" type="String" readonly="Y">
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* The comment of the zip file
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* </property>
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* <property name="nextEntry" type="@wxZipEntry" readonly="Y">
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* Closes the current entry if one is open, then reads the meta-data for the next
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* entry and returns it in a @wxZipEntry object. The stream is then open and can be read.
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* </property>
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* <property name="totalEntries" type="Integer" readonly="Y">
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* The number of entries in the zip file
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* </property>
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* </properties>
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*/
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WXJS_BEGIN_PROPERTY_MAP(ZipInputStream)
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WXJS_READONLY_PROPERTY(P_COMMENT, "comment")
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WXJS_READONLY_PROPERTY(P_TOTAL_ENTRIES, "totalEntries")
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WXJS_READONLY_PROPERTY(P_NEXT_ENTRY, "nextEntry")
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WXJS_END_PROPERTY_MAP()
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bool ZipInputStream::GetProperty(Stream *p, JSContext *cx, JSObject *obj, int id, jsval *vp)
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{
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wxZipInputStream *in = (wxZipInputStream*) p->GetStream();
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switch(id)
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{
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case P_COMMENT:
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*vp = ToJS(cx, in->GetComment());
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break;
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case P_TOTAL_ENTRIES:
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*vp = ToJS(cx, in->GetTotalEntries());
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break;
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case P_NEXT_ENTRY:
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{
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wxZipEntry *entry = in->GetNextEntry();
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if ( entry == NULL )
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{
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*vp = JSVAL_VOID;
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}
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else
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{
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*vp = ZipEntry::CreateObject(cx, entry);
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}
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}
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break;
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}
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return true;
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}
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