src/common/filesys.cpp

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

#ifdef __GNUG__
#pragma implementation
#endif

#include "wx/wxprec.h"

#ifdef __BORDLANDC__
#pragma hdrstop
#endif


#if wxUSE_FILESYSTEM

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


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

IMPLEMENT_ABSTRACT_CLASS(wxFileSystemHandler, wxObject)


static wxFileTypeInfo *gs_FSMimeFallbacks = 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;}
    }

    static bool s_MinimalMimeEnsured = FALSE;
    if (!s_MinimalMimeEnsured) {
        wxTheMimeTypesManager -> AddFallbacks(gs_FSMimeFallbacks);
        s_MinimalMimeEnsured = TRUE;
    }

    ft = wxTheMimeTypesManager -> GetFileTypeFromExtension(ext);
    if ( !ft || !ft -> GetMimeType(&mime) ) {
        mime = wxEmptyString;
    }

    delete ft;

    return mime;
}


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
//--------------------------------------------------------------------------------


wxString wxLocalFSHandler::ms_root;

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

wxFSFile* wxLocalFSHandler::OpenFile(wxFileSystem& WXUNUSED(fs), const wxString& location)
{
    // location has Unix path separators
    wxString right = ms_root + GetRightLocation(location);
    wxFileName fn(right, wxPATH_UNIX);

    if (!wxFileExists(fn.GetFullPath()))
        return (wxFSFile*) NULL;

    return new wxFSFile(new wxFileInputStream(fn.GetFullPath()),
                        right,
                        GetMimeTypeFromExt(location),
                        GetAnchor(location),
                        wxDateTime(wxFileModificationTime(fn.GetFullPath())));

}

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

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


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

IMPLEMENT_DYNAMIC_CLASS(wxFileSystem, wxObject)


wxList wxFileSystem::m_Handlers;


static wxString MakeCorrectPath(const wxString& path)
{
    wxString p(path);
    wxString r;
    int i, j, cnt;

    cnt = p.Length();
    for (i = 0; i < cnt; i++)
      if (p.GetChar(i) == wxT('\\')) p.GetWritableChar(i) = wxT('/'); // Want to be windows-safe

    if (p.Left(2) == wxT("./")) { p = p.Mid(2); cnt -= 2; }

    if (cnt < 3) return p;

    r << p.GetChar(0) << p.GetChar(1);

    // skip trailing ../.., if any
    for (i = 2; i < cnt && (p.GetChar(i) == wxT('/') || p.GetChar(i) == wxT('.')); i++) r << p.GetChar(i);

    // remove back references: translate dir1/../dir2 to dir2
    for (; i < cnt; i++)
    {
        r << p.GetChar(i);
        if (p.GetChar(i) == wxT('/') && p.GetChar(i-1) == wxT('.') && p.GetChar(i-2) == wxT('.'))
        {
            for (j = r.Length() - 2; j >= 0 && r.GetChar(j) != wxT('/') && r.GetChar(j) != wxT(':'); j--) {}
            if (j >= 0 && r.GetChar(j) != wxT(':'))
            {
                for (j = j - 1; j >= 0 && r.GetChar(j) != wxT('/') && r.GetChar(j) != wxT(':'); j--) {}
                r.Remove(j + 1);
            }
        }
    }

    for (; i < cnt; i++) r << p.GetChar(i);

    return r;
}


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

    m_Path = MakeCorrectPath(location);

    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 = MakeCorrectPath(location);
    unsigned i, ln;
    char meta;
    wxFSFile *s = NULL;
    wxNode *node;

    ln = loc.Length();
    meta = 0;
    for (i = 0; i < ln; i++)
    {
        switch (loc[i])
        {
            case wxT('/') : case wxT(':') : case wxT('#') :
                meta = loc[i];
                break;
        }
        if (meta != 0) break;
    }
    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('/'); // Want to 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);

            gs_FSMimeFallbacks = new wxFileTypeInfo[6];
            gs_FSMimeFallbacks[0] =
            wxFileTypeInfo("image/jpeg",
                           "",
                           "",
                           "JPEG image (from fallback)",
                           "jpg", "jpeg", NULL);
            gs_FSMimeFallbacks[1] =
            wxFileTypeInfo("image/gif",
                           "",
                           "",
                           "GIF image (from fallback)",
                           "gif", NULL);
            gs_FSMimeFallbacks[2] =
            wxFileTypeInfo("image/png",
                           "",
                           "",
                           "PNG image (from fallback)",
                           "png", NULL);
            gs_FSMimeFallbacks[3] =
            wxFileTypeInfo("image/bmp",
                           "",
                           "",
                           "windows bitmap image (from fallback)",
                           "bmp", NULL);
            gs_FSMimeFallbacks[4] =
            wxFileTypeInfo("text/html",
                           "",
                           "",
                           "HTML document (from fallback)",
                           "htm", "html", NULL);
            gs_FSMimeFallbacks[5] =
            // must terminate the table with this!
            wxFileTypeInfo();

            return TRUE;
        }
        virtual void OnExit()
    	{
            delete [] gs_FSMimeFallbacks;
            wxFileSystem::CleanUpHandlers();
    	}
};

IMPLEMENT_DYNAMIC_CLASS(wxFileSystemModule, wxModule)

#endif
  // wxUSE_FILESYSTEM
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	// CVS-ID: $Id$
	7	// Licence: wxWindows Licence
	8	/////////////////////////////////////////////////////////////////////////////
	9
	10	#ifdef __GNUG__
	11	#pragma implementation
	12	#endif
	13
	14	#include "wx/wxprec.h"
	15
	16	#ifdef __BORDLANDC__
	17	#pragma hdrstop
	18	#endif
	19
	20
	21	#if wxUSE_FILESYSTEM
	22
	23	#include "wx/wfstream.h"
	24	#include "wx/module.h"
	25	#include "wx/filesys.h"
	26	#include "wx/mimetype.h"
	27	#include "wx/filename.h"
	28
	29
	30
	31	//--------------------------------------------------------------------------------
	32	// wxFileSystemHandler
	33	//--------------------------------------------------------------------------------
	34
	35	IMPLEMENT_ABSTRACT_CLASS(wxFileSystemHandler, wxObject)
	36
	37
	38	static wxFileTypeInfo *gs_FSMimeFallbacks = NULL;
	39
	40	wxString wxFileSystemHandler::GetMimeTypeFromExt(const wxString& location)
	41	{
	42	wxString ext = wxEmptyString, mime = wxEmptyString;
	43	wxString loc = GetRightLocation(location);
	44	char c;
	45	int l = loc.Length(), l2;
	46	wxFileType *ft;
	47
	48	l2 = l;
	49	for (int i = l-1; i >= 0; i--) {
	50	c = loc[(unsigned int) i];
	51	if (c == wxT('#')) l2 = i + 1;
	52	if (c == wxT('.')) {ext = loc.Right(l2-i-1); break;}
	53	if ((c == wxT('/')) \|\| (c == wxT('\\')) \|\| (c == wxT(':'))) {return wxEmptyString;}
	54	}
	55
	56	static bool s_MinimalMimeEnsured = FALSE;
	57	if (!s_MinimalMimeEnsured) {
	58	wxTheMimeTypesManager -> AddFallbacks(gs_FSMimeFallbacks);
	59	s_MinimalMimeEnsured = TRUE;
	60	}
	61
	62	ft = wxTheMimeTypesManager -> GetFileTypeFromExtension(ext);
	63	if ( !ft \|\| !ft -> GetMimeType(&mime) ) {
	64	mime = wxEmptyString;
	65	}
	66
	67	delete ft;
	68
	69	return mime;
	70	}
	71
	72
	73
	74	wxString wxFileSystemHandler::GetProtocol(const wxString& location) const
	75	{
	76	wxString s = wxEmptyString;
	77	int i, l = location.Length();
	78	bool fnd;
	79
	80	fnd = FALSE;
	81	for (i = l-1; (i >= 0) && ((location[i] != wxT('#')) \|\| (!fnd)); i--) {
	82	if ((location[i] == wxT(':')) && (i != 1 /win: C:\path/)) fnd = TRUE;
	83	}
	84	if (!fnd) return wxT("file");
	85	for (++i; (i < l) && (location[i] != wxT(':')); i++) s << location[i];
	86	return s;
	87	}
	88
	89
	90	wxString wxFileSystemHandler::GetLeftLocation(const wxString& location) const
	91	{
	92	int i;
	93	bool fnd;
	94
	95	fnd = FALSE;
	96	for (i = location.Length()-1; i >= 0; i--) {
	97	if ((location[i] == wxT(':')) && (i != 1 /win: C:\path/)) fnd = TRUE;
	98	else if (fnd && (location[i] == wxT('#'))) return location.Left(i);
	99	}
	100	return wxEmptyString;
	101	}
	102
	103	wxString wxFileSystemHandler::GetRightLocation(const wxString& location) const
	104	{
	105	int i, l = location.Length();
	106	int l2 = l + 1;
	107	for (i = l-1; (i >= 0) && ((location[i] != wxT(':')) \|\| (i == 1) \|\| (location[i-2] == wxT(':'))); i--) {if (location[i] == wxT('#')) l2 = i + 1;}
	108	if (i == 0) return wxEmptyString;
	109	else return location.Mid(i + 1, l2 - i - 2);
	110	}
	111
	112	wxString wxFileSystemHandler::GetAnchor(const wxString& location) const
	113	{
	114	char c;
	115	int l = location.Length();
	116
	117	for (int i = l-1; i >= 0; i--) {
	118	c = location[i];
	119	if (c == wxT('#')) return location.Right(l-i-1);
	120	else if ((c == wxT('.')) \|\| (c == wxT('/')) \|\| (c == wxT('\\')) \|\| (c == wxT(':'))) return wxEmptyString;
	121	}
	122	return wxEmptyString;
	123	}
	124
	125
	126	wxString wxFileSystemHandler::FindFirst(const wxString& WXUNUSED(spec),
	127	int WXUNUSED(flags))
	128	{
	129	return wxEmptyString;
	130	}
	131
	132	wxString wxFileSystemHandler::FindNext()
	133	{
	134	return wxEmptyString;
	135	}
	136
	137	//--------------------------------------------------------------------------------
	138	// wxLocalFSHandler
	139	//--------------------------------------------------------------------------------
	140
	141
	142	wxString wxLocalFSHandler::ms_root;
	143
	144	bool wxLocalFSHandler::CanOpen(const wxString& location)
	145	{
	146	return GetProtocol(location) == wxT("file");
	147	}
	148
	149	wxFSFile* wxLocalFSHandler::OpenFile(wxFileSystem& WXUNUSED(fs), const wxString& location)
	150	{
	151	// location has Unix path separators
	152	wxString right = ms_root + GetRightLocation(location);
	153	wxFileName fn(right, wxPATH_UNIX);
	154
	155	if (!wxFileExists(fn.GetFullPath()))
	156	return (wxFSFile*) NULL;
	157
	158	return new wxFSFile(new wxFileInputStream(fn.GetFullPath()),
	159	right,
	160	GetMimeTypeFromExt(location),
	161	GetAnchor(location),
	162	wxDateTime(wxFileModificationTime(fn.GetFullPath())));
	163
	164	}
	165
	166	wxString wxLocalFSHandler::FindFirst(const wxString& spec, int flags)
	167	{
	168	wxString right = ms_root + GetRightLocation(spec);
	169	return wxFindFirstFile(right, flags);
	170	}
	171
	172	wxString wxLocalFSHandler::FindNext()
	173	{
	174	return wxFindNextFile();
	175	}
	176
	177
	178
	179	//-----------------------------------------------------------------------------
	180	// wxFileSystem
	181	//-----------------------------------------------------------------------------
	182
	183	IMPLEMENT_DYNAMIC_CLASS(wxFileSystem, wxObject)
	184
	185
	186	wxList wxFileSystem::m_Handlers;
	187
	188
	189	static wxString MakeCorrectPath(const wxString& path)
	190	{
	191	wxString p(path);
	192	wxString r;
	193	int i, j, cnt;
	194
	195	cnt = p.Length();
	196	for (i = 0; i < cnt; i++)
	197	if (p.GetChar(i) == wxT('\\')) p.GetWritableChar(i) = wxT('/'); // Want to be windows-safe
	198
	199	if (p.Left(2) == wxT("./")) { p = p.Mid(2); cnt -= 2; }
	200
	201	if (cnt < 3) return p;
	202
	203	r << p.GetChar(0) << p.GetChar(1);
	204
	205	// skip trailing ../.., if any
	206	for (i = 2; i < cnt && (p.GetChar(i) == wxT('/') \|\| p.GetChar(i) == wxT('.')); i++) r << p.GetChar(i);
	207
	208	// remove back references: translate dir1/../dir2 to dir2
	209	for (; i < cnt; i++)
	210	{
	211	r << p.GetChar(i);
	212	if (p.GetChar(i) == wxT('/') && p.GetChar(i-1) == wxT('.') && p.GetChar(i-2) == wxT('.'))
	213	{
	214	for (j = r.Length() - 2; j >= 0 && r.GetChar(j) != wxT('/') && r.GetChar(j) != wxT(':'); j--) {}
	215	if (j >= 0 && r.GetChar(j) != wxT(':'))
	216	{
	217	for (j = j - 1; j >= 0 && r.GetChar(j) != wxT('/') && r.GetChar(j) != wxT(':'); j--) {}
	218	r.Remove(j + 1);
	219	}
	220	}
	221	}
	222
	223	for (; i < cnt; i++) r << p.GetChar(i);
	224
	225	return r;
	226	}
	227
	228
	229	void wxFileSystem::ChangePathTo(const wxString& location, bool is_dir)
	230	{
	231	int i, pathpos = -1;
	232
	233	m_Path = MakeCorrectPath(location);
	234
	235	if (is_dir)
	236	{
	237	if (m_Path.Length() > 0 && m_Path.Last() != wxT('/') && m_Path.Last() != wxT(':'))
	238	m_Path << wxT('/');
	239	}
	240
	241	else
	242	{
	243	for (i = m_Path.Length()-1; i >= 0; i--)
	244	{
	245	if (m_Path[(unsigned int) i] == wxT('/'))
	246	{
	247	if ((i > 1) && (m_Path[(unsigned int) (i-1)] == wxT('/')) && (m_Path[(unsigned int) (i-2)] == wxT(':')))
	248	{
	249	i -= 2;
	250	continue;
	251	}
	252	else
	253	{
	254	pathpos = i;
	255	break;
	256	}
	257	}
	258	else if (m_Path[(unsigned int) i] == wxT(':')) {
	259	pathpos = i;
	260	break;
	261	}
	262	}
	263	if (pathpos == -1)
	264	{
	265	for (i = 0; i < (int) m_Path.Length(); i++)
	266	{
	267	if (m_Path[(unsigned int) i] == wxT(':'))
	268	{
	269	m_Path.Remove(i+1);
	270	break;
	271	}
	272	}
	273	if (i == (int) m_Path.Length())
	274	m_Path = wxEmptyString;
	275	}
	276	else
	277	{
	278	m_Path.Remove(pathpos+1);
	279	}
	280	}
	281	}
	282
	283
	284
	285	wxFSFile* wxFileSystem::OpenFile(const wxString& location)
	286	{
	287	wxString loc = MakeCorrectPath(location);
	288	unsigned i, ln;
	289	char meta;
	290	wxFSFile *s = NULL;
	291	wxNode *node;
	292
	293	ln = loc.Length();
	294	meta = 0;
	295	for (i = 0; i < ln; i++)
	296	{
	297	switch (loc[i])
	298	{
	299	case wxT('/') : case wxT(':') : case wxT('#') :
	300	meta = loc[i];
	301	break;
	302	}
	303	if (meta != 0) break;
	304	}
	305	m_LastName = wxEmptyString;
	306
	307	// try relative paths first :
	308	if (meta != wxT(':'))
	309	{
	310	node = m_Handlers.GetFirst();
	311	while (node)
	312	{
	313	wxFileSystemHandler h = (wxFileSystemHandler) node -> GetData();
	314	if (h->CanOpen(m_Path + loc))
	315	{
	316	s = h->OpenFile(*this, m_Path + loc);
	317	if (s) { m_LastName = m_Path + loc; break; }
	318	}
	319	node = node->GetNext();
	320	}
	321	}
	322
	323	// if failed, try absolute paths :
	324	if (s == NULL)
	325	{
	326	node = m_Handlers.GetFirst();
	327	while (node)
	328	{
	329	wxFileSystemHandler h = (wxFileSystemHandler) node->GetData();
	330	if (h->CanOpen(loc))
	331	{
	332	s = h->OpenFile(*this, loc);
	333	if (s) { m_LastName = loc; break; }
	334	}
	335	node = node->GetNext();
	336	}
	337	}
	338	return (s);
	339	}
	340
	341
	342
	343	wxString wxFileSystem::FindFirst(const wxString& spec, int flags)
	344	{
	345	wxNode *node;
	346	wxString spec2(spec);
	347
	348	m_FindFileHandler = NULL;
	349
	350	for (int i = spec2.Length()-1; i >= 0; i--)
	351	if (spec2[(unsigned int) i] == wxT('\\')) spec2.GetWritableChar(i) = wxT('/'); // Want to be windows-safe
	352
	353	node = m_Handlers.GetFirst();
	354	while (node)
	355	{
	356	m_FindFileHandler = (wxFileSystemHandler*) node -> GetData();
	357	if (m_FindFileHandler -> CanOpen(m_Path + spec2))
	358	return m_FindFileHandler -> FindFirst(m_Path + spec2, flags);
	359	node = node->GetNext();
	360	}
	361
	362	node = m_Handlers.GetFirst();
	363	while (node)
	364	{
	365	m_FindFileHandler = (wxFileSystemHandler*) node -> GetData();
	366	if (m_FindFileHandler -> CanOpen(spec2))
	367	return m_FindFileHandler -> FindFirst(spec2, flags);
	368	node = node->GetNext();
	369	}
	370
	371	return wxEmptyString;
	372	}
	373
	374
	375
	376	wxString wxFileSystem::FindNext()
	377	{
	378	if (m_FindFileHandler == NULL) return wxEmptyString;
	379	else return m_FindFileHandler -> FindNext();
	380	}
	381
	382
	383
	384	void wxFileSystem::AddHandler(wxFileSystemHandler *handler)
	385	{
	386	m_Handlers.Append(handler);
	387	}
	388
	389
	390	void wxFileSystem::CleanUpHandlers()
	391	{
	392	m_Handlers.DeleteContents(TRUE);
	393	m_Handlers.Clear();
	394	}
	395
	396
	397
	398
	399	///// Module:
	400
	401	class wxFileSystemModule : public wxModule
	402	{
	403	DECLARE_DYNAMIC_CLASS(wxFileSystemModule)
	404
	405	public:
	406	virtual bool OnInit()
	407	{
	408	wxFileSystem::AddHandler(new wxLocalFSHandler);
	409
	410	gs_FSMimeFallbacks = new wxFileTypeInfo[6];
	411	gs_FSMimeFallbacks[0] =
	412	wxFileTypeInfo("image/jpeg",
	413	"",
	414	"",
	415	"JPEG image (from fallback)",
	416	"jpg", "jpeg", NULL);
	417	gs_FSMimeFallbacks[1] =
	418	wxFileTypeInfo("image/gif",
	419	"",
	420	"",
	421	"GIF image (from fallback)",
	422	"gif", NULL);
	423	gs_FSMimeFallbacks[2] =
	424	wxFileTypeInfo("image/png",
	425	"",
	426	"",
	427	"PNG image (from fallback)",
	428	"png", NULL);
	429	gs_FSMimeFallbacks[3] =
	430	wxFileTypeInfo("image/bmp",
	431	"",
	432	"",
	433	"windows bitmap image (from fallback)",
	434	"bmp", NULL);
	435	gs_FSMimeFallbacks[4] =
	436	wxFileTypeInfo("text/html",
	437	"",
	438	"",
	439	"HTML document (from fallback)",
	440	"htm", "html", NULL);
	441	gs_FSMimeFallbacks[5] =
	442	// must terminate the table with this!
	443	wxFileTypeInfo();
	444
	445	return TRUE;
	446	}
	447	virtual void OnExit()
	448	{
	449	delete [] gs_FSMimeFallbacks;
	450	wxFileSystem::CleanUpHandlers();
	451	}
	452	};
	453
	454	IMPLEMENT_DYNAMIC_CLASS(wxFileSystemModule, wxModule)
	455
	456	#endif
	457	// wxUSE_FILESYSTEM
	458
	459
	460