src/common/filesys.cpp

/////////////////////////////////////////////////////////////////////////////
// Name:        filesys.cpp
// Purpose:     wxFileSystem class - interface for opening files
// Author:      Vaclav Slavik
// Copyright:   (c) 1999 Vaclav Slavik
// Licence:     wxWindows Licence
/////////////////////////////////////////////////////////////////////////////

#ifdef __GNUG__
#pragma implementation
#endif

#include "wx/wxprec.h"

#ifdef __BORDLANDC__
#pragma hdrstop
#endif

#if !wxUSE_SOCKETS
    #undef wxUSE_FS_INET
    #define wxUSE_FS_INET 0
#endif

#if (wxUSE_HTML || wxUSE_FS_INET || wxUSE_FS_ZIP) && wxUSE_STREAMS

#include "wx/wfstream.h"
#include "wx/module.h"
#include "wx/filesys.h"

//--------------------------------------------------------------------------------
// wxFileSystemHandler
//--------------------------------------------------------------------------------

IMPLEMENT_ABSTRACT_CLASS(wxFileSystemHandler, wxObject)

wxMimeTypesManager *wxFileSystemHandler::m_MimeMng = NULL;

void wxFileSystemHandler::CleanUpStatics()
{
    if (m_MimeMng) delete m_MimeMng;
    m_MimeMng = NULL;
}


wxString wxFileSystemHandler::GetMimeTypeFromExt(const wxString& location)
{
    wxString ext = wxEmptyString, mime = wxEmptyString;
    wxString loc = GetRightLocation(location);
    char c;
    int l = loc.Length(), l2;
    wxFileType *ft;

    l2 = l;
    for (int i = l-1; i >= 0; i--) {
        c = loc[(unsigned int) i];
        if (c == wxT('#')) l2 = i + 1;
        if (c == wxT('.')) {ext = loc.Right(l2-i-1); break;}
        if ((c == wxT('/')) || (c == wxT('\\')) || (c == wxT(':'))) {return wxEmptyString;}
    }

    if (m_MimeMng == NULL) {
        m_MimeMng = new wxMimeTypesManager;

        static const wxFileTypeInfo fallbacks[] =
        {
            wxFileTypeInfo("image/jpeg",
                           "",
                           "",
                           "JPEG image (from fallback)",
                           "jpg", "jpeg", NULL),
            wxFileTypeInfo("image/gif",
                           "",
                           "",
                           "GIF image (from fallback)",
                           "gif", NULL),
            wxFileTypeInfo("image/png",
                           "",
                           "",
                           "PNG image (from fallback)",
                           "png", NULL),
            wxFileTypeInfo("image/bmp",
                           "",
                           "",
                           "windows bitmap image (from fallback)",
                           "bmp", NULL),
            wxFileTypeInfo("text/html",
                           "",
                           "",
                           "HTML document (from fallback)",
                           "htm", "html", NULL),

            // must terminate the table with this!
            wxFileTypeInfo()
        };

        m_MimeMng -> AddFallbacks(fallbacks);
    }

    ft = m_MimeMng -> GetFileTypeFromExtension(ext);
    if (ft && (ft -> GetMimeType(&mime))) {
        delete ft;
        return mime;
    }
    else {
        delete ft;
        return wxEmptyString;
    }
}


wxString wxFileSystemHandler::GetProtocol(const wxString& location) const
{
    wxString s = wxEmptyString;
    int i, l = location.Length();
    bool fnd;

    fnd = FALSE;
    for (i = l-1; (i >= 0) && ((location[i] != wxT('#')) || (!fnd)); i--) {
        if ((location[i] == wxT(':')) && (i != 1 /*win: C:\path*/)) fnd = TRUE;
    }
    if (!fnd) return wxT("file");
    for (++i; (i < l) && (location[i] != wxT(':')); i++) s << location[i];
    return s;
}


wxString wxFileSystemHandler::GetLeftLocation(const wxString& location) const
{
    int i;
    bool fnd;

    fnd = FALSE;
    for (i = location.Length()-1; i >= 0; i--) {
        if ((location[i] == wxT(':')) && (i != 1 /*win: C:\path*/)) fnd = TRUE;
        else if (fnd && (location[i] == wxT('#'))) return location.Left(i);
    }
    return wxEmptyString;
}

wxString wxFileSystemHandler::GetRightLocation(const wxString& location) const
{
    int i, l = location.Length();
    int l2 = l + 1;
    for (i = l-1; (i >= 0) && ((location[i] != wxT(':')) || (i == 1) || (location[i-2] == wxT(':'))); i--) {if (location[i] == wxT('#')) l2 = i + 1;}
    if (i == 0) return wxEmptyString;
    else return location.Mid(i + 1, l2 - i - 2);
}

wxString wxFileSystemHandler::GetAnchor(const wxString& location) const
{
    char c;
    int l = location.Length();

    for (int i = l-1; i >= 0; i--) {
        c = location[i];
        if (c == wxT('#')) return location.Right(l-i-1);
        else if ((c == wxT('.')) || (c == wxT('/')) || (c == wxT('\\')) || (c == wxT(':'))) return wxEmptyString;
    }
    return wxEmptyString;
}


wxString wxFileSystemHandler::FindFirst(const wxString& WXUNUSED(spec),
                                        int WXUNUSED(flags))
{
    return wxEmptyString;
}

wxString wxFileSystemHandler::FindNext()
{
    return wxEmptyString;
}

//--------------------------------------------------------------------------------
// wxLocalFSHandler
//--------------------------------------------------------------------------------

class wxLocalFSHandler : public wxFileSystemHandler
{
    public:
        virtual bool CanOpen(const wxString& location);
        virtual wxFSFile* OpenFile(wxFileSystem& fs, const wxString& location);
        virtual wxString FindFirst(const wxString& spec, int flags = 0);
        virtual wxString FindNext();
};


bool wxLocalFSHandler::CanOpen(const wxString& location)
{
    return GetProtocol(location) == wxT("file");
}

wxFSFile* wxLocalFSHandler::OpenFile(wxFileSystem& WXUNUSED(fs), const wxString& location)
{
    wxString right = GetRightLocation(location);
    if (wxFileExists(right))
        return new wxFSFile(new wxFileInputStream(right),
                            right,
                            GetMimeTypeFromExt(location),
                            GetAnchor(location),
                            wxDateTime(wxFileModificationTime(right)));
    else return (wxFSFile*) NULL;
}

wxString wxLocalFSHandler::FindFirst(const wxString& spec, int flags)
{
    wxString right = GetRightLocation(spec);
    return wxFindFirstFile(right, flags);
}

wxString wxLocalFSHandler::FindNext()
{
    return wxFindNextFile();
}


//-----------------------------------------------------------------------------
// wxFileSystem
//-----------------------------------------------------------------------------

IMPLEMENT_DYNAMIC_CLASS(wxFileSystem, wxObject)


wxList wxFileSystem::m_Handlers;


void wxFileSystem::ChangePathTo(const wxString& location, bool is_dir)
{
    int i, pathpos = -1;
    m_Path = location;

    for (i = m_Path.Length()-1; i >= 0; i--)
        if (m_Path[(unsigned int) i] == wxT('\\')) m_Path.GetWritableChar(i) = wxT('/');         // wanna be windows-safe

    if (is_dir)
    {
        if (m_Path.Length() > 0 && m_Path.Last() != wxT('/') && m_Path.Last() != wxT(':'))
	        m_Path << wxT('/');
    }

    else
    {
        for (i = m_Path.Length()-1; i >= 0; i--)
    	{
            if (m_Path[(unsigned int) i] == wxT('/'))
	        {
                if ((i > 1) && (m_Path[(unsigned int) (i-1)] == wxT('/')) && (m_Path[(unsigned int) (i-2)] == wxT(':')))
		        {
                    i -= 2;
                    continue;
                }
                else
        		{
                    pathpos = i;
                    break;
                }
            }
            else if (m_Path[(unsigned int) i] == wxT(':')) {
                pathpos = i;
                break;
            }
        }
        if (pathpos == -1)
    	{
            for (i = 0; i < (int) m_Path.Length(); i++)
    	    {
                if (m_Path[(unsigned int) i] == wxT(':'))
        		{
                    m_Path.Remove(i+1);
                    break;
                }
            }
            if (i == (int) m_Path.Length())
    	        m_Path = wxEmptyString;
        }
        else
    	{
            m_Path.Remove(pathpos+1);
        }
    }
}


wxFSFile* wxFileSystem::OpenFile(const wxString& location)
{
    wxString loc = location;
    int i, ln;
    char meta;
    wxFSFile *s = NULL;
    wxNode *node;

    ln = loc.Length();
    meta = 0;
    for (i = 0; i < ln; i++)
    {
        if (loc[(unsigned int) i] == wxT('\\')) loc.GetWritableChar(i) = wxT('/');         // wanna be windows-safe
        if (!meta)
            switch (loc[(unsigned int) i])
        	{
                case wxT('/') : case wxT(':') : case wxT('#') : meta = loc[(unsigned int) i];
            }
    }
    m_LastName = wxEmptyString;

    // try relative paths first :
    if (meta != wxT(':'))
    {
        node = m_Handlers.GetFirst();
        while (node)
    	{
            wxFileSystemHandler *h = (wxFileSystemHandler*) node -> GetData();
            if (h->CanOpen(m_Path + loc))
	        {
                s = h->OpenFile(*this, m_Path + loc);
                if (s) { m_LastName = m_Path + loc; break; }
            }
            node = node->GetNext();
        }
    }

    // if failed, try absolute paths :
    if (s == NULL)
    {
        node = m_Handlers.GetFirst();
        while (node)
    	{
            wxFileSystemHandler *h = (wxFileSystemHandler*) node->GetData();
            if (h->CanOpen(loc))
    	    {
                s = h->OpenFile(*this, loc);
                if (s) { m_LastName = loc; break; }
            }
            node = node->GetNext();
        }
    }
    return (s);
}


wxString wxFileSystem::FindFirst(const wxString& spec, int flags)
{
    wxNode *node;
    wxString spec2(spec);

    m_FindFileHandler = NULL;

    for (int i = spec2.Length()-1; i >= 0; i--)
        if (spec2[(unsigned int) i] == wxT('\\')) spec2.GetWritableChar(i) = wxT('/'); // wanna be windows-safe

    node = m_Handlers.GetFirst();
    while (node)
    {
        m_FindFileHandler = (wxFileSystemHandler*) node -> GetData();
        if (m_FindFileHandler -> CanOpen(m_Path + spec2))
            return m_FindFileHandler -> FindFirst(m_Path + spec2, flags);
        node = node->GetNext();
    }

    node = m_Handlers.GetFirst();
    while (node)
    {
        m_FindFileHandler = (wxFileSystemHandler*) node -> GetData();
        if (m_FindFileHandler -> CanOpen(spec2))
            return m_FindFileHandler -> FindFirst(spec2, flags);
        node = node->GetNext();
    }

    return wxEmptyString;
}


wxString wxFileSystem::FindNext()
{
    if (m_FindFileHandler == NULL) return wxEmptyString;
    else return m_FindFileHandler -> FindNext();
}


void wxFileSystem::AddHandler(wxFileSystemHandler *handler)
{
    m_Handlers.Append(handler);
}


void wxFileSystem::CleanUpHandlers()
{
    m_Handlers.DeleteContents(TRUE);
    m_Handlers.Clear();
}


///// Module:

class wxFileSystemModule : public wxModule
{
    DECLARE_DYNAMIC_CLASS(wxFileSystemModule)

    public:
        virtual bool OnInit()
        {
            wxFileSystem::AddHandler(new wxLocalFSHandler);
            return TRUE;
        }
        virtual void OnExit()
    	{
    	    wxFileSystemHandler::CleanUpStatics();
            wxFileSystem::CleanUpHandlers();
    	}
};

IMPLEMENT_DYNAMIC_CLASS(wxFileSystemModule, wxModule)

#endif
  // (wxUSE_FS_INET || wxUSE_FS_ZIP) && wxUSE_STREAMS
Commit	Line	Data
	1	/////////////////////////////////////////////////////////////////////////////
	2	// Name: filesys.cpp
	3	// Purpose: wxFileSystem class - interface for opening files
	4	// Author: Vaclav Slavik
	5	// Copyright: (c) 1999 Vaclav Slavik
	6	// Licence: wxWindows Licence
	7	/////////////////////////////////////////////////////////////////////////////
	8
	9	#ifdef __GNUG__
	10	#pragma implementation
	11	#endif
	12
	13	#include "wx/wxprec.h"
	14
	15	#ifdef __BORDLANDC__
	16	#pragma hdrstop
	17	#endif
	18
	19	#if !wxUSE_SOCKETS
	20	#undef wxUSE_FS_INET
	21	#define wxUSE_FS_INET 0
	22	#endif
	23
	24	#if (wxUSE_HTML \|\| wxUSE_FS_INET \|\| wxUSE_FS_ZIP) && wxUSE_STREAMS
	25
	26	#include "wx/wfstream.h"
	27	#include "wx/module.h"
	28	#include "wx/filesys.h"
	29
	30	//--------------------------------------------------------------------------------
	31	// wxFileSystemHandler
	32	//--------------------------------------------------------------------------------
	33
	34	IMPLEMENT_ABSTRACT_CLASS(wxFileSystemHandler, wxObject)
	35
	36	wxMimeTypesManager *wxFileSystemHandler::m_MimeMng = NULL;
	37
	38	void wxFileSystemHandler::CleanUpStatics()
	39	{
	40	if (m_MimeMng) delete m_MimeMng;
	41	m_MimeMng = NULL;
	42	}
	43
	44
	45	wxString wxFileSystemHandler::GetMimeTypeFromExt(const wxString& location)
	46	{
	47	wxString ext = wxEmptyString, mime = wxEmptyString;
	48	wxString loc = GetRightLocation(location);
	49	char c;
	50	int l = loc.Length(), l2;
	51	wxFileType *ft;
	52
	53	l2 = l;
	54	for (int i = l-1; i >= 0; i--) {
	55	c = loc[(unsigned int) i];
	56	if (c == wxT('#')) l2 = i + 1;
	57	if (c == wxT('.')) {ext = loc.Right(l2-i-1); break;}
	58	if ((c == wxT('/')) \|\| (c == wxT('\\')) \|\| (c == wxT(':'))) {return wxEmptyString;}
	59	}
	60
	61	if (m_MimeMng == NULL) {
	62	m_MimeMng = new wxMimeTypesManager;
	63
	64	static const wxFileTypeInfo fallbacks[] =
	65	{
	66	wxFileTypeInfo("image/jpeg",
	67	"",
	68	"",
	69	"JPEG image (from fallback)",
	70	"jpg", "jpeg", NULL),
	71	wxFileTypeInfo("image/gif",
	72	"",
	73	"",
	74	"GIF image (from fallback)",
	75	"gif", NULL),
	76	wxFileTypeInfo("image/png",
	77	"",
	78	"",
	79	"PNG image (from fallback)",
	80	"png", NULL),
	81	wxFileTypeInfo("image/bmp",
	82	"",
	83	"",
	84	"windows bitmap image (from fallback)",
	85	"bmp", NULL),
	86	wxFileTypeInfo("text/html",
	87	"",
	88	"",
	89	"HTML document (from fallback)",
	90	"htm", "html", NULL),
	91
	92	// must terminate the table with this!
	93	wxFileTypeInfo()
	94	};
	95
	96	m_MimeMng -> AddFallbacks(fallbacks);
	97	}
	98
	99	ft = m_MimeMng -> GetFileTypeFromExtension(ext);
	100	if (ft && (ft -> GetMimeType(&mime))) {
	101	delete ft;
	102	return mime;
	103	}
	104	else {
	105	delete ft;
	106	return wxEmptyString;
	107	}
	108	}
	109
	110
	111
	112	wxString wxFileSystemHandler::GetProtocol(const wxString& location) const
	113	{
	114	wxString s = wxEmptyString;
	115	int i, l = location.Length();
	116	bool fnd;
	117
	118	fnd = FALSE;
	119	for (i = l-1; (i >= 0) && ((location[i] != wxT('#')) \|\| (!fnd)); i--) {
	120	if ((location[i] == wxT(':')) && (i != 1 /win: C:\path/)) fnd = TRUE;
	121	}
	122	if (!fnd) return wxT("file");
	123	for (++i; (i < l) && (location[i] != wxT(':')); i++) s << location[i];
	124	return s;
	125	}
	126
	127
	128	wxString wxFileSystemHandler::GetLeftLocation(const wxString& location) const
	129	{
	130	int i;
	131	bool fnd;
	132
	133	fnd = FALSE;
	134	for (i = location.Length()-1; i >= 0; i--) {
	135	if ((location[i] == wxT(':')) && (i != 1 /win: C:\path/)) fnd = TRUE;
	136	else if (fnd && (location[i] == wxT('#'))) return location.Left(i);
	137	}
	138	return wxEmptyString;
	139	}
	140
	141	wxString wxFileSystemHandler::GetRightLocation(const wxString& location) const
	142	{
	143	int i, l = location.Length();
	144	int l2 = l + 1;
	145	for (i = l-1; (i >= 0) && ((location[i] != wxT(':')) \|\| (i == 1) \|\| (location[i-2] == wxT(':'))); i--) {if (location[i] == wxT('#')) l2 = i + 1;}
	146	if (i == 0) return wxEmptyString;
	147	else return location.Mid(i + 1, l2 - i - 2);
	148	}
	149
	150	wxString wxFileSystemHandler::GetAnchor(const wxString& location) const
	151	{
	152	char c;
	153	int l = location.Length();
	154
	155	for (int i = l-1; i >= 0; i--) {
	156	c = location[i];
	157	if (c == wxT('#')) return location.Right(l-i-1);
	158	else if ((c == wxT('.')) \|\| (c == wxT('/')) \|\| (c == wxT('\\')) \|\| (c == wxT(':'))) return wxEmptyString;
	159	}
	160	return wxEmptyString;
	161	}
	162
	163
	164	wxString wxFileSystemHandler::FindFirst(const wxString& WXUNUSED(spec),
	165	int WXUNUSED(flags))
	166	{
	167	return wxEmptyString;
	168	}
	169
	170	wxString wxFileSystemHandler::FindNext()
	171	{
	172	return wxEmptyString;
	173	}
	174
	175	//--------------------------------------------------------------------------------
	176	// wxLocalFSHandler
	177	//--------------------------------------------------------------------------------
	178
	179	class wxLocalFSHandler : public wxFileSystemHandler
	180	{
	181	public:
	182	virtual bool CanOpen(const wxString& location);
	183	virtual wxFSFile* OpenFile(wxFileSystem& fs, const wxString& location);
	184	virtual wxString FindFirst(const wxString& spec, int flags = 0);
	185	virtual wxString FindNext();
	186	};
	187
	188
	189	bool wxLocalFSHandler::CanOpen(const wxString& location)
	190	{
	191	return GetProtocol(location) == wxT("file");
	192	}
	193
	194	wxFSFile* wxLocalFSHandler::OpenFile(wxFileSystem& WXUNUSED(fs), const wxString& location)
	195	{
	196	wxString right = GetRightLocation(location);
	197	if (wxFileExists(right))
	198	return new wxFSFile(new wxFileInputStream(right),
	199	right,
	200	GetMimeTypeFromExt(location),
	201	GetAnchor(location),
	202	wxDateTime(wxFileModificationTime(right)));
	203	else return (wxFSFile*) NULL;
	204	}
	205
	206	wxString wxLocalFSHandler::FindFirst(const wxString& spec, int flags)
	207	{
	208	wxString right = GetRightLocation(spec);
	209	return wxFindFirstFile(right, flags);
	210	}
	211
	212	wxString wxLocalFSHandler::FindNext()
	213	{
	214	return wxFindNextFile();
	215	}
	216
	217
	218
	219	//-----------------------------------------------------------------------------
	220	// wxFileSystem
	221	//-----------------------------------------------------------------------------
	222
	223	IMPLEMENT_DYNAMIC_CLASS(wxFileSystem, wxObject)
	224
	225
	226	wxList wxFileSystem::m_Handlers;
	227
	228
	229
	230	void wxFileSystem::ChangePathTo(const wxString& location, bool is_dir)
	231	{
	232	int i, pathpos = -1;
	233	m_Path = location;
	234
	235	for (i = m_Path.Length()-1; i >= 0; i--)
	236	if (m_Path[(unsigned int) i] == wxT('\\')) m_Path.GetWritableChar(i) = wxT('/'); // wanna be windows-safe
	237
	238	if (is_dir)
	239	{
	240	if (m_Path.Length() > 0 && m_Path.Last() != wxT('/') && m_Path.Last() != wxT(':'))
	241	m_Path << wxT('/');
	242	}
	243
	244	else
	245	{
	246	for (i = m_Path.Length()-1; i >= 0; i--)
	247	{
	248	if (m_Path[(unsigned int) i] == wxT('/'))
	249	{
	250	if ((i > 1) && (m_Path[(unsigned int) (i-1)] == wxT('/')) && (m_Path[(unsigned int) (i-2)] == wxT(':')))
	251	{
	252	i -= 2;
	253	continue;
	254	}
	255	else
	256	{
	257	pathpos = i;
	258	break;
	259	}
	260	}
	261	else if (m_Path[(unsigned int) i] == wxT(':')) {
	262	pathpos = i;
	263	break;
	264	}
	265	}
	266	if (pathpos == -1)
	267	{
	268	for (i = 0; i < (int) m_Path.Length(); i++)
	269	{
	270	if (m_Path[(unsigned int) i] == wxT(':'))
	271	{
	272	m_Path.Remove(i+1);
	273	break;
	274	}
	275	}
	276	if (i == (int) m_Path.Length())
	277	m_Path = wxEmptyString;
	278	}
	279	else
	280	{
	281	m_Path.Remove(pathpos+1);
	282	}
	283	}
	284	}
	285
	286
	287
	288	wxFSFile* wxFileSystem::OpenFile(const wxString& location)
	289	{
	290	wxString loc = location;
	291	int i, ln;
	292	char meta;
	293	wxFSFile *s = NULL;
	294	wxNode *node;
	295
	296	ln = loc.Length();
	297	meta = 0;
	298	for (i = 0; i < ln; i++)
	299	{
	300	if (loc[(unsigned int) i] == wxT('\\')) loc.GetWritableChar(i) = wxT('/'); // wanna be windows-safe
	301	if (!meta)
	302	switch (loc[(unsigned int) i])
	303	{
	304	case wxT('/') : case wxT(':') : case wxT('#') : meta = loc[(unsigned int) i];
	305	}
	306	}
	307	m_LastName = wxEmptyString;
	308
	309	// try relative paths first :
	310	if (meta != wxT(':'))
	311	{
	312	node = m_Handlers.GetFirst();
	313	while (node)
	314	{
	315	wxFileSystemHandler h = (wxFileSystemHandler) node -> GetData();
	316	if (h->CanOpen(m_Path + loc))
	317	{
	318	s = h->OpenFile(*this, m_Path + loc);
	319	if (s) { m_LastName = m_Path + loc; break; }
	320	}
	321	node = node->GetNext();
	322	}
	323	}
	324
	325	// if failed, try absolute paths :
	326	if (s == NULL)
	327	{
	328	node = m_Handlers.GetFirst();
	329	while (node)
	330	{
	331	wxFileSystemHandler h = (wxFileSystemHandler) node->GetData();
	332	if (h->CanOpen(loc))
	333	{
	334	s = h->OpenFile(*this, loc);
	335	if (s) { m_LastName = loc; break; }
	336	}
	337	node = node->GetNext();
	338	}
	339	}
	340	return (s);
	341	}
	342
	343
	344
	345	wxString wxFileSystem::FindFirst(const wxString& spec, int flags)
	346	{
	347	wxNode *node;
	348	wxString spec2(spec);
	349
	350	m_FindFileHandler = NULL;
	351
	352	for (int i = spec2.Length()-1; i >= 0; i--)
	353	if (spec2[(unsigned int) i] == wxT('\\')) spec2.GetWritableChar(i) = wxT('/'); // wanna be windows-safe
	354
	355	node = m_Handlers.GetFirst();
	356	while (node)
	357	{
	358	m_FindFileHandler = (wxFileSystemHandler*) node -> GetData();
	359	if (m_FindFileHandler -> CanOpen(m_Path + spec2))
	360	return m_FindFileHandler -> FindFirst(m_Path + spec2, flags);
	361	node = node->GetNext();
	362	}
	363
	364	node = m_Handlers.GetFirst();
	365	while (node)
	366	{
	367	m_FindFileHandler = (wxFileSystemHandler*) node -> GetData();
	368	if (m_FindFileHandler -> CanOpen(spec2))
	369	return m_FindFileHandler -> FindFirst(spec2, flags);
	370	node = node->GetNext();
	371	}
	372
	373	return wxEmptyString;
	374	}
	375
	376
	377
	378	wxString wxFileSystem::FindNext()
	379	{
	380	if (m_FindFileHandler == NULL) return wxEmptyString;
	381	else return m_FindFileHandler -> FindNext();
	382	}
	383
	384
	385
	386	void wxFileSystem::AddHandler(wxFileSystemHandler *handler)
	387	{
	388	m_Handlers.Append(handler);
	389	}
	390
	391
	392	void wxFileSystem::CleanUpHandlers()
	393	{
	394	m_Handlers.DeleteContents(TRUE);
	395	m_Handlers.Clear();
	396	}
	397
	398
	399
	400
	401	///// Module:
	402
	403	class wxFileSystemModule : public wxModule
	404	{
	405	DECLARE_DYNAMIC_CLASS(wxFileSystemModule)
	406
	407	public:
	408	virtual bool OnInit()
	409	{
	410	wxFileSystem::AddHandler(new wxLocalFSHandler);
	411	return TRUE;
	412	}
	413	virtual void OnExit()
	414	{
	415	wxFileSystemHandler::CleanUpStatics();
	416	wxFileSystem::CleanUpHandlers();
	417	}
	418	};
	419
	420	IMPLEMENT_DYNAMIC_CLASS(wxFileSystemModule, wxModule)
	421
	422	#endif
	423	// (wxUSE_FS_INET \|\| wxUSE_FS_ZIP) && wxUSE_STREAMS
	424
	425
	426