[wxWidgets.git] / 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
/////////////////////////////////////////////////////////////////////////////

#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
#pragma implementation "filesys.h"
#endif

#include "wx/wxprec.h"

#ifdef __BORLANDC__
#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"
#include "wx/log.h"


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

IMPLEMENT_ABSTRACT_CLASS(wxFileSystemHandler, wxObject)


#if wxUSE_MIMETYPE
static wxFileTypeInfo *gs_FSMimeFallbacks = NULL;
#endif

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

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

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

    delete ft;

    return mime;
#else
    if ( ext.IsSameAs(wxT("htm"), FALSE) || ext.IsSameAs(_T("html"), FALSE) )
        return wxT("text/html");
    if ( ext.IsSameAs(wxT("jpg"), FALSE) || ext.IsSameAs(_T("jpeg"), FALSE) )
        return wxT("image/jpeg");
    if ( ext.IsSameAs(wxT("gif"), FALSE) )
        return wxT("image/gif");
    if ( ext.IsSameAs(wxT("png"), FALSE) )
        return wxT("image/png");
    if ( ext.IsSameAs(wxT("bmp"), FALSE) )
        return wxT("image/bmp");
    return wxEmptyString;
#endif
}


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 = GetRightLocation(location);
    wxFileName fn = wxFileSystem::URLToFileName(right);
    wxString fullpath = ms_root + fn.GetFullPath();

    if (!wxFileExists(fullpath))
        return (wxFSFile*) NULL;

    // we need to check whether we can really read from this file, otherwise
    // wxFSFile is not going to work
    wxFFileInputStream *is = new wxFFileInputStream(fullpath);
    if ( !is->Ok() )
    {
        delete is;
        return (wxFSFile*) NULL;
    }

    return new wxFSFile(is,
                        right,
                        GetMimeTypeFromExt(location),
                        GetAnchor(location)
#if wxUSE_DATETIME
                        ,wxDateTime(wxFileModificationTime(fullpath))
#endif // wxUSE_DATETIME
                        );
}

wxString wxLocalFSHandler::FindFirst(const wxString& spec, int flags)
{
    wxFileName fn = wxFileSystem::URLToFileName(GetRightLocation(spec));
    return wxFindFirstFile(ms_root + fn.GetFullPath(), flags);
}

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


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

IMPLEMENT_DYNAMIC_CLASS(wxFileSystem, wxObject)
IMPLEMENT_ABSTRACT_CLASS(wxFSFile, 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;
    wxList::compatibility_iterator 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)
{
    wxList::compatibility_iterator 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()
{
    WX_CLEAR_LIST(wxList, m_Handlers);
}

const static wxString g_unixPathString(wxT("/"));
const static wxString g_nativePathString(wxFILE_SEP_PATH);

// Returns the native path for a file URL
wxFileName wxFileSystem::URLToFileName(const wxString& url)
{
	wxString path = url;

	if ( path.Find(wxT("file://")) == 0 )
	{
		path = path.Mid(7);
	}
    else if ( path.Find(wxT("file:")) == 0 )
	{
		path = path.Mid(5);
	}
	// Remove preceding double slash on Mac Classic
#if defined(__WXMAC__) && !defined(__UNIX__)
    else if ( path.Find(wxT("//")) == 0 )
        path = path.Mid(2);
#endif
    
    path.Replace(wxT("%25"), wxT("%"));
    path.Replace(wxT("%3A"), wxT(":"));

#ifdef __WXMSW__
	// file urls either start with a forward slash (local harddisk),
    // otherwise they have a servername/sharename notation,
    // which only exists on msw and corresponds to a unc
	if ( path[0u] == wxT('/') && path [1u] != wxT('/'))
	{
		path = path.Mid(1);
	}
	else if ( (url.Find(wxT("file://")) == 0) &&
              (path.Find(wxT('/')) != wxNOT_FOUND) &&
              (path.Length() > 1) && (path[1u] != wxT(':')) )
	{
		path = wxT("//") + path;
	}
#endif

	path.Replace(g_unixPathString, g_nativePathString);

	return wxFileName(path, wxPATH_NATIVE);
}

// Returns the file URL for a native path
wxString wxFileSystem::FileNameToURL(const wxFileName& filename)
{
    wxFileName fn = filename;
    fn.Normalize(wxPATH_NORM_DOTS | wxPATH_NORM_TILDE | wxPATH_NORM_ABSOLUTE);
    wxString url = fn.GetFullPath(wxPATH_NATIVE);

#ifndef __UNIX__
    // unc notation, wxMSW
    if ( url.Find(wxT("\\\\")) == 0 ) 
    {
        url = url.Mid(2);
    }
    else
    {
        url = wxT("/") + url;
#ifdef __WXMAC__
        url = wxT("/") + url;
#endif

    }
#endif

    url.Replace(g_nativePathString, g_unixPathString);
    url.Replace(wxT("%"), wxT("%25"));
    url.Replace(wxT(":"), wxT("%3A"));
    url = wxT("file:") + url;
    return url;
}


///// Module:

class wxFileSystemModule : public wxModule
{
    DECLARE_DYNAMIC_CLASS(wxFileSystemModule)

    public:
        virtual bool OnInit()
        {
            wxFileSystem::AddHandler(new wxLocalFSHandler);

        #if wxUSE_MIMETYPE
            gs_FSMimeFallbacks = new wxFileTypeInfo[6];
            gs_FSMimeFallbacks[0] =
            wxFileTypeInfo(_T("image/jpeg"),
                           _T(""),
                           _T(""),
                           _T("JPEG image (from fallback)"),
                           _T("jpg"), _T("jpeg"), NULL);
            gs_FSMimeFallbacks[1] =
            wxFileTypeInfo(_T("image/gif"),
                           _T(""),
                           _T(""),
                           _T("GIF image (from fallback)"),
                           _T("gif"), NULL);
            gs_FSMimeFallbacks[2] =
            wxFileTypeInfo(_T("image/png"),
                           _T(""),
                           _T(""),
                           _T("PNG image (from fallback)"),
                           _T("png"), NULL);
            gs_FSMimeFallbacks[3] =
            wxFileTypeInfo(_T("image/bmp"),
                           _T(""),
                           _T(""),
                           _T("windows bitmap image (from fallback)"),
                           _T("bmp"), NULL);
            gs_FSMimeFallbacks[4] =
            wxFileTypeInfo(_T("text/html"),
                           _T(""),
                           _T(""),
                           _T("HTML document (from fallback)"),
                           _T("htm"), _T("html"), NULL);
            gs_FSMimeFallbacks[5] =
            // must terminate the table with this!
            wxFileTypeInfo();
        #endif
            return TRUE;
        }
        virtual void OnExit()
        {
        #if wxUSE_MIMETYPE
            delete [] gs_FSMimeFallbacks;
        #endif
            wxFileSystem::CleanUpHandlers();
        }
};

IMPLEMENT_DYNAMIC_CLASS(wxFileSystemModule, wxModule)

#endif
  // wxUSE_FILESYSTEM
Commit	Line	Data
5526e819 VS	1	/////////////////////////////////////////////////////////////////////////////
	2	// Name: filesys.cpp
	3	// Purpose: wxFileSystem class - interface for opening files
	4	// Author: Vaclav Slavik
	5	// Copyright: (c) 1999 Vaclav Slavik
5be0cf65	6	// CVS-ID: $Id$
5526e819 VS	7	// Licence: wxWindows Licence
	8	/////////////////////////////////////////////////////////////////////////////
	9
14f355c2	10	#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
1aedb1dd	11	#pragma implementation "filesys.h"
5526e819 VS	12	#endif
5526e819 VS	13
d30e0edd	14	#include "wx/wxprec.h"
5526e819	15
2b5f62a0	16	#ifdef __BORLANDC__
5526e819 VS	17	#pragma hdrstop
	18	#endif
	19
31528cd3	20
24528b0c	21	#if wxUSE_FILESYSTEM
5526e819	22
d30e0edd RR	23	#include "wx/wfstream.h"
	24	#include "wx/module.h"
	25	#include "wx/filesys.h"
73725567	26	#include "wx/mimetype.h"
6464f4cb	27	#include "wx/filename.h"
008a56c9	28	#include "wx/log.h"
73725567 VS	29
73725567 VS	30
5526e819 VS	31	//--------------------------------------------------------------------------------
	32	// wxFileSystemHandler
	33	//--------------------------------------------------------------------------------
	34
	35	IMPLEMENT_ABSTRACT_CLASS(wxFileSystemHandler, wxObject)
	36
5526e819	37
659a6064	38	#if wxUSE_MIMETYPE
dbb88122	39	static wxFileTypeInfo *gs_FSMimeFallbacks = NULL;
659a6064	40	#endif
dbb88122	41
5526e819 VS	42	wxString wxFileSystemHandler::GetMimeTypeFromExt(const wxString& location)
5526e819 VS	43	{
45681cd7	44	wxString ext, mime;
5526e819 VS	45	wxString loc = GetRightLocation(location);
	46	char c;
	47	int l = loc.Length(), l2;
5526e819 VS	48
5526e819 VS	49	l2 = l;
46837272	50	for (int i = l-1; i >= 0; i--)
45681cd7	51	{
ea4f5235	52	c = loc[(unsigned int) i];
45681cd7 VS	53	if ( c == wxT('#') )
	54	l2 = i + 1;
	55	if ( c == wxT('.') )
	56	{
46837272	57	ext = loc.Right(l2-i-1);
45681cd7 VS	58	break;
	59	}
	60	if ( (c == wxT('/')) \|\| (c == wxT('\\')) \|\| (c == wxT(':')) )
	61	return wxEmptyString;
5526e819	62	}
956418ab	63
45681cd7	64	#if wxUSE_MIMETYPE
73725567 VS	65	static bool s_MinimalMimeEnsured = FALSE;
73725567 VS	66	if (!s_MinimalMimeEnsured) {
45681cd7	67	wxTheMimeTypesManager->AddFallbacks(gs_FSMimeFallbacks);
dbb88122	68	s_MinimalMimeEnsured = TRUE;
956418ab VS	69	}
956418ab VS	70
45681cd7 VS	71	wxFileType *ft = wxTheMimeTypesManager->GetFileTypeFromExtension(ext);
	72	if ( !ft \|\| !ft -> GetMimeType(&mime) )
	73	{
f6bcfd97	74	mime = wxEmptyString;
51f79d5c	75	}
f6bcfd97 BP	76
	77	delete ft;
	78
	79	return mime;
659a6064	80	#else
45681cd7 VS	81	if ( ext.IsSameAs(wxT("htm"), FALSE) \|\| ext.IsSameAs(_T("html"), FALSE) )
	82	return wxT("text/html");
	83	if ( ext.IsSameAs(wxT("jpg"), FALSE) \|\| ext.IsSameAs(_T("jpeg"), FALSE) )
	84	return wxT("image/jpeg");
	85	if ( ext.IsSameAs(wxT("gif"), FALSE) )
	86	return wxT("image/gif");
	87	if ( ext.IsSameAs(wxT("png"), FALSE) )
	88	return wxT("image/png");
	89	if ( ext.IsSameAs(wxT("bmp"), FALSE) )
	90	return wxT("image/bmp");
659a6064 VS	91	return wxEmptyString;
659a6064 VS	92	#endif
5526e819 VS	93	}
	94
	95
	96
	97	wxString wxFileSystemHandler::GetProtocol(const wxString& location) const
	98	{
	99	wxString s = wxEmptyString;
	100	int i, l = location.Length();
	101	bool fnd;
	102
	103	fnd = FALSE;
223d09f6 KB	104	for (i = l-1; (i >= 0) && ((location[i] != wxT('#')) \|\| (!fnd)); i--) {
223d09f6 KB	105	if ((location[i] == wxT(':')) && (i != 1 /win: C:\path/)) fnd = TRUE;
5526e819	106	}
223d09f6 KB	107	if (!fnd) return wxT("file");
223d09f6 KB	108	for (++i; (i < l) && (location[i] != wxT(':')); i++) s << location[i];
5526e819 VS	109	return s;
	110	}
	111
	112
5526e819 VS	113	wxString wxFileSystemHandler::GetLeftLocation(const wxString& location) const
	114	{
	115	int i;
	116	bool fnd;
	117
	118	fnd = FALSE;
	119	for (i = location.Length()-1; i >= 0; i--) {
223d09f6 KB	120	if ((location[i] == wxT(':')) && (i != 1 /win: C:\path/)) fnd = TRUE;
223d09f6 KB	121	else if (fnd && (location[i] == wxT('#'))) return location.Left(i);
5526e819 VS	122	}
	123	return wxEmptyString;
	124	}
	125
5526e819 VS	126	wxString wxFileSystemHandler::GetRightLocation(const wxString& location) const
	127	{
	128	int i, l = location.Length();
	129	int l2 = l + 1;
008a56c9 VS	130
	131	for (i = l-1;
	132	(i >= 0) &&
	133	((location[i] != wxT(':')) \|\| (i == 1) \|\| (location[i-2] == wxT(':')));
	134	i--)
c8c29c49 JS	135	{
	136	if (location[i] == wxT('#')) l2 = i + 1;
	137	}
5526e819 VS	138	if (i == 0) return wxEmptyString;
	139	else return location.Mid(i + 1, l2 - i - 2);
	140	}
	141
5526e819 VS	142	wxString wxFileSystemHandler::GetAnchor(const wxString& location) const
	143	{
	144	char c;
	145	int l = location.Length();
	146
	147	for (int i = l-1; i >= 0; i--) {
	148	c = location[i];
223d09f6 KB	149	if (c == wxT('#')) return location.Right(l-i-1);
223d09f6 KB	150	else if ((c == wxT('.')) \|\| (c == wxT('/')) \|\| (c == wxT('\\')) \|\| (c == wxT(':'))) return wxEmptyString;
5526e819 VS	151	}
	152	return wxEmptyString;
	153	}
	154
aaa66113	155
f76dbc4d VZ	156	wxString wxFileSystemHandler::FindFirst(const wxString& WXUNUSED(spec),
	157	int WXUNUSED(flags))
	158	{
	159	return wxEmptyString;
	160	}
aaa66113	161
f76dbc4d VZ	162	wxString wxFileSystemHandler::FindNext()
	163	{
	164	return wxEmptyString;
	165	}
aaa66113	166
5526e819 VS	167	//--------------------------------------------------------------------------------
	168	// wxLocalFSHandler
	169	//--------------------------------------------------------------------------------
	170
5526e819	171
19008b7b	172	wxString wxLocalFSHandler::ms_root;
5526e819	173
5526e819 VS	174	bool wxLocalFSHandler::CanOpen(const wxString& location)
5526e819 VS	175	{
223d09f6	176	return GetProtocol(location) == wxT("file");
5526e819 VS	177	}
5526e819 VS	178
5526e819 VS	179	wxFSFile* wxLocalFSHandler::OpenFile(wxFileSystem& WXUNUSED(fs), const wxString& location)
5526e819 VS	180	{
6464f4cb	181	// location has Unix path separators
008a56c9	182	wxString right = GetRightLocation(location);
9548c49a	183	wxFileName fn = wxFileSystem::URLToFileName(right);
008a56c9	184	wxString fullpath = ms_root + fn.GetFullPath();
46837272	185
008a56c9	186	if (!wxFileExists(fullpath))
f6bcfd97	187	return (wxFSFile*) NULL;
46837272	188
3e5175b7 VZ	189	// we need to check whether we can really read from this file, otherwise
	190	// wxFSFile is not going to work
	191	wxFFileInputStream *is = new wxFFileInputStream(fullpath);
	192	if ( !is->Ok() )
	193	{
	194	delete is;
	195	return (wxFSFile*) NULL;
	196	}
	197
	198	return new wxFSFile(is,
f6bcfd97 BP	199	right,
f6bcfd97 BP	200	GetMimeTypeFromExt(location),
e2b87f38 VZ	201	GetAnchor(location)
	202	#if wxUSE_DATETIME
	203	,wxDateTime(wxFileModificationTime(fullpath))
	204	#endif // wxUSE_DATETIME
	205	);
5526e819 VS	206	}
5526e819 VS	207
aaa66113 VS	208	wxString wxLocalFSHandler::FindFirst(const wxString& spec, int flags)
aaa66113 VS	209	{
008a56c9 VS	210	wxFileName fn = wxFileSystem::URLToFileName(GetRightLocation(spec));
008a56c9 VS	211	return wxFindFirstFile(ms_root + fn.GetFullPath(), flags);
aaa66113 VS	212	}
	213
	214	wxString wxLocalFSHandler::FindNext()
	215	{
	216	return wxFindNextFile();
	217	}
	218
	219
	220
5526e819 VS	221	//-----------------------------------------------------------------------------
	222	// wxFileSystem
	223	//-----------------------------------------------------------------------------
	224
	225	IMPLEMENT_DYNAMIC_CLASS(wxFileSystem, wxObject)
46837272	226	IMPLEMENT_ABSTRACT_CLASS(wxFSFile, wxObject)
5526e819 VS	227
	228
	229	wxList wxFileSystem::m_Handlers;
	230
	231
5be0cf65 VS	232	static wxString MakeCorrectPath(const wxString& path)
	233	{
	234	wxString p(path);
	235	wxString r;
	236	int i, j, cnt;
86b3203f	237
5be0cf65 VS	238	cnt = p.Length();
5be0cf65 VS	239	for (i = 0; i < cnt; i++)
f6081a04	240	if (p.GetChar(i) == wxT('\\')) p.GetWritableChar(i) = wxT('/'); // Want to be windows-safe
86b3203f	241
5be0cf65	242	if (p.Left(2) == wxT("./")) { p = p.Mid(2); cnt -= 2; }
86b3203f	243
5be0cf65	244	if (cnt < 3) return p;
86b3203f	245
b2f60e03	246	r << p.GetChar(0) << p.GetChar(1);
86b3203f	247
5be0cf65	248	// skip trailing ../.., if any
b2f60e03	249	for (i = 2; i < cnt && (p.GetChar(i) == wxT('/') \|\| p.GetChar(i) == wxT('.')); i++) r << p.GetChar(i);
86b3203f	250
5be0cf65 VS	251	// remove back references: translate dir1/../dir2 to dir2
	252	for (; i < cnt; i++)
	253	{
b2f60e03 BJ	254	r << p.GetChar(i);
b2f60e03 BJ	255	if (p.GetChar(i) == wxT('/') && p.GetChar(i-1) == wxT('.') && p.GetChar(i-2) == wxT('.'))
5be0cf65	256	{
b2f60e03 BJ	257	for (j = r.Length() - 2; j >= 0 && r.GetChar(j) != wxT('/') && r.GetChar(j) != wxT(':'); j--) {}
b2f60e03 BJ	258	if (j >= 0 && r.GetChar(j) != wxT(':'))
5be0cf65	259	{
b2f60e03	260	for (j = j - 1; j >= 0 && r.GetChar(j) != wxT('/') && r.GetChar(j) != wxT(':'); j--) {}
5be0cf65 VS	261	r.Remove(j + 1);
	262	}
	263	}
	264	}
86b3203f	265
b2f60e03	266	for (; i < cnt; i++) r << p.GetChar(i);
86b3203f	267
5be0cf65 VS	268	return r;
	269	}
	270
5526e819 VS	271
	272	void wxFileSystem::ChangePathTo(const wxString& location, bool is_dir)
	273	{
	274	int i, pathpos = -1;
5526e819	275
5be0cf65	276	m_Path = MakeCorrectPath(location);
d30e0edd	277
aaa66113 VS	278	if (is_dir)
	279	{
	280	if (m_Path.Length() > 0 && m_Path.Last() != wxT('/') && m_Path.Last() != wxT(':'))
d81152f4	281	m_Path << wxT('/');
aaa66113	282	}
86b3203f	283
aaa66113	284	else
d30e0edd	285	{
269e8200	286	for (i = m_Path.Length()-1; i >= 0; i--)
d81152f4	287	{
223d09f6	288	if (m_Path[(unsigned int) i] == wxT('/'))
d81152f4	289	{
223d09f6	290	if ((i > 1) && (m_Path[(unsigned int) (i-1)] == wxT('/')) && (m_Path[(unsigned int) (i-2)] == wxT(':')))
d81152f4	291	{
5526e819 VS	292	i -= 2;
	293	continue;
	294	}
269e8200	295	else
d81152f4	296	{
269e8200	297	pathpos = i;
5526e819 VS	298	break;
	299	}
	300	}
aaa66113 VS	301	else if (m_Path[(unsigned int) i] == wxT(':')) {
	302	pathpos = i;
	303	break;
	304	}
5526e819	305	}
269e8200	306	if (pathpos == -1)
d81152f4	307	{
269e8200	308	for (i = 0; i < (int) m_Path.Length(); i++)
d81152f4	309	{
223d09f6	310	if (m_Path[(unsigned int) i] == wxT(':'))
d81152f4	311	{
5526e819 VS	312	m_Path.Remove(i+1);
	313	break;
	314	}
	315	}
269e8200	316	if (i == (int) m_Path.Length())
d81152f4	317	m_Path = wxEmptyString;
5526e819	318	}
269e8200	319	else
d81152f4	320	{
5526e819 VS	321	m_Path.Remove(pathpos+1);
	322	}
	323	}
	324	}
	325
	326
	327
	328	wxFSFile* wxFileSystem::OpenFile(const wxString& location)
	329	{
5be0cf65 VS	330	wxString loc = MakeCorrectPath(location);
5be0cf65 VS	331	unsigned i, ln;
5526e819 VS	332	char meta;
5526e819 VS	333	wxFSFile *s = NULL;
df5168c4	334	wxList::compatibility_iterator node;
5526e819 VS	335
	336	ln = loc.Length();
	337	meta = 0;
269e8200	338	for (i = 0; i < ln; i++)
d30e0edd	339	{
2148cce2 VS	340	switch (loc[i])
2148cce2 VS	341	{
86b3203f	342	case wxT('/') : case wxT(':') : case wxT('#') :
2148cce2 VS	343	meta = loc[i];
	344	break;
	345	}
	346	if (meta != 0) break;
5526e819 VS	347	}
	348	m_LastName = wxEmptyString;
	349
	350	// try relative paths first :
223d09f6	351	if (meta != wxT(':'))
d30e0edd	352	{
5526e819	353	node = m_Handlers.GetFirst();
d30e0edd	354	while (node)
d81152f4	355	{
5526e819	356	wxFileSystemHandler h = (wxFileSystemHandler) node -> GetData();
7dee4b2b	357	if (h->CanOpen(m_Path + loc))
d81152f4	358	{
7dee4b2b VS	359	s = h->OpenFile(*this, m_Path + loc);
7dee4b2b VS	360	if (s) { m_LastName = m_Path + loc; break; }
5526e819	361	}
d30e0edd	362	node = node->GetNext();
5526e819 VS	363	}
	364	}
	365
	366	// if failed, try absolute paths :
269e8200	367	if (s == NULL)
d30e0edd	368	{
5526e819	369	node = m_Handlers.GetFirst();
d30e0edd	370	while (node)
d81152f4	371	{
d30e0edd	372	wxFileSystemHandler h = (wxFileSystemHandler) node->GetData();
7dee4b2b	373	if (h->CanOpen(loc))
d81152f4	374	{
7dee4b2b VS	375	s = h->OpenFile(*this, loc);
7dee4b2b VS	376	if (s) { m_LastName = loc; break; }
5526e819	377	}
d30e0edd	378	node = node->GetNext();
5526e819 VS	379	}
	380	}
	381	return (s);
	382	}
	383
	384
aaa66113 VS	385
	386	wxString wxFileSystem::FindFirst(const wxString& spec, int flags)
	387	{
df5168c4	388	wxList::compatibility_iterator node;
aaa66113	389	wxString spec2(spec);
86b3203f	390
aaa66113 VS	391	m_FindFileHandler = NULL;
	392
	393	for (int i = spec2.Length()-1; i >= 0; i--)
f6081a04	394	if (spec2[(unsigned int) i] == wxT('\\')) spec2.GetWritableChar(i) = wxT('/'); // Want to be windows-safe
aaa66113 VS	395
	396	node = m_Handlers.GetFirst();
	397	while (node)
	398	{
	399	m_FindFileHandler = (wxFileSystemHandler*) node -> GetData();
86b3203f	400	if (m_FindFileHandler -> CanOpen(m_Path + spec2))
aaa66113 VS	401	return m_FindFileHandler -> FindFirst(m_Path + spec2, flags);
aaa66113 VS	402	node = node->GetNext();
86b3203f	403	}
aaa66113 VS	404
	405	node = m_Handlers.GetFirst();
	406	while (node)
	407	{
	408	m_FindFileHandler = (wxFileSystemHandler*) node -> GetData();
	409	if (m_FindFileHandler -> CanOpen(spec2))
	410	return m_FindFileHandler -> FindFirst(spec2, flags);
	411	node = node->GetNext();
86b3203f DW	412	}
	413
	414	return wxEmptyString;
aaa66113 VS	415	}
	416
	417
	418
	419	wxString wxFileSystem::FindNext()
	420	{
	421	if (m_FindFileHandler == NULL) return wxEmptyString;
	422	else return m_FindFileHandler -> FindNext();
	423	}
	424
	425
	426
5526e819 VS	427	void wxFileSystem::AddHandler(wxFileSystemHandler *handler)
	428	{
	429	m_Handlers.Append(handler);
	430	}
	431
	432
269e8200 RD	433	void wxFileSystem::CleanUpHandlers()
269e8200 RD	434	{
df5168c4	435	WX_CLEAR_LIST(wxList, m_Handlers);
269e8200 RD	436	}
269e8200 RD	437
2b5f62a0 VZ	438	const static wxString g_unixPathString(wxT("/"));
2b5f62a0 VZ	439	const static wxString g_nativePathString(wxFILE_SEP_PATH);
5526e819	440
2b5f62a0	441	// Returns the native path for a file URL
9548c49a	442	wxFileName wxFileSystem::URLToFileName(const wxString& url)
2b5f62a0	443	{
9548c49a	444	wxString path = url;
2b5f62a0 VZ	445
	446	if ( path.Find(wxT("file://")) == 0 )
	447	{
9548c49a	448	path = path.Mid(7);
2b5f62a0	449	}
008a56c9 VS	450	else if ( path.Find(wxT("file:")) == 0 )
	451	{
	452	path = path.Mid(5);
	453	}
d0200d9e JS	454	// Remove preceding double slash on Mac Classic
	455	#if defined(__WXMAC__) && !defined(__UNIX__)
	456	else if ( path.Find(wxT("//")) == 0 )
	457	path = path.Mid(2);
	458	#endif
008a56c9 VS	459
	460	path.Replace(wxT("%25"), wxT("%"));
	461	path.Replace(wxT("%3A"), wxT(":"));
2b5f62a0	462
8ad944dc	463	#ifdef __WXMSW__
2b5f62a0 VZ	464	// file urls either start with a forward slash (local harddisk),
	465	// otherwise they have a servername/sharename notation,
	466	// which only exists on msw and corresponds to a unc
	467	if ( path[0u] == wxT('/') && path [1u] != wxT('/'))
	468	{
9548c49a	469	path = path.Mid(1);
2b5f62a0	470	}
2b5f62a0 VZ	471	else if ( (url.Find(wxT("file://")) == 0) &&
	472	(path.Find(wxT('/')) != wxNOT_FOUND) &&
	473	(path.Length() > 1) && (path[1u] != wxT(':')) )
	474	{
9548c49a	475	path = wxT("//") + path;
2b5f62a0 VZ	476	}
2b5f62a0 VZ	477	#endif
9b798c66	478
9548c49a	479	path.Replace(g_unixPathString, g_nativePathString);
2b5f62a0	480
9548c49a	481	return wxFileName(path, wxPATH_NATIVE);
2b5f62a0 VZ	482	}
	483
	484	// Returns the file URL for a native path
9548c49a	485	wxString wxFileSystem::FileNameToURL(const wxFileName& filename)
2b5f62a0	486	{
9548c49a VS	487	wxFileName fn = filename;
	488	fn.Normalize(wxPATH_NORM_DOTS \| wxPATH_NORM_TILDE \| wxPATH_NORM_ABSOLUTE);
	489	wxString url = fn.GetFullPath(wxPATH_NATIVE);
9b798c66	490
2a5d3f57 JS	491	#ifndef __UNIX__
2a5d3f57 JS	492	// unc notation, wxMSW
9548c49a VS	493	if ( url.Find(wxT("\\\\")) == 0 )
	494	{
	495	url = url.Mid(2);
	496	}
	497	else
	498	{
	499	url = wxT("/") + url;
d0200d9e JS	500	#ifdef __WXMAC__
	501	url = wxT("/") + url;
	502	#endif
	503
9548c49a	504	}
2b5f62a0	505	#endif
9b798c66	506
9548c49a	507	url.Replace(g_nativePathString, g_unixPathString);
008a56c9 VS	508	url.Replace(wxT("%"), wxT("%25"));
	509	url.Replace(wxT(":"), wxT("%3A"));
	510	url = wxT("file:") + url;
9548c49a	511	return url;
2b5f62a0	512	}
aaa66113 VS	513
aaa66113 VS	514
5526e819 VS	515	///// Module:
	516
	517	class wxFileSystemModule : public wxModule
	518	{
	519	DECLARE_DYNAMIC_CLASS(wxFileSystemModule)
	520
	521	public:
	522	virtual bool OnInit()
	523	{
	524	wxFileSystem::AddHandler(new wxLocalFSHandler);
86b3203f	525
659a6064	526	#if wxUSE_MIMETYPE
dbb88122	527	gs_FSMimeFallbacks = new wxFileTypeInfo[6];
86b3203f	528	gs_FSMimeFallbacks[0] =
57e67135 VZ	529	wxFileTypeInfo(_T("image/jpeg"),
	530	_T(""),
	531	_T(""),
	532	_T("JPEG image (from fallback)"),
	533	_T("jpg"), _T("jpeg"), NULL);
86b3203f	534	gs_FSMimeFallbacks[1] =
57e67135 VZ	535	wxFileTypeInfo(_T("image/gif"),
	536	_T(""),
	537	_T(""),
	538	_T("GIF image (from fallback)"),
	539	_T("gif"), NULL);
86b3203f	540	gs_FSMimeFallbacks[2] =
57e67135 VZ	541	wxFileTypeInfo(_T("image/png"),
	542	_T(""),
	543	_T(""),
	544	_T("PNG image (from fallback)"),
	545	_T("png"), NULL);
86b3203f	546	gs_FSMimeFallbacks[3] =
57e67135 VZ	547	wxFileTypeInfo(_T("image/bmp"),
	548	_T(""),
	549	_T(""),
	550	_T("windows bitmap image (from fallback)"),
	551	_T("bmp"), NULL);
86b3203f	552	gs_FSMimeFallbacks[4] =
57e67135 VZ	553	wxFileTypeInfo(_T("text/html"),
	554	_T(""),
	555	_T(""),
	556	_T("HTML document (from fallback)"),
	557	_T("htm"), _T("html"), NULL);
86b3203f	558	gs_FSMimeFallbacks[5] =
dbb88122 VS	559	// must terminate the table with this!
dbb88122 VS	560	wxFileTypeInfo();
659a6064	561	#endif
5526e819 VS	562	return TRUE;
5526e819 VS	563	}
269e8200	564	virtual void OnExit()
d81152f4	565	{
659a6064	566	#if wxUSE_MIMETYPE
86b3203f	567	delete [] gs_FSMimeFallbacks;
659a6064	568	#endif
269e8200	569	wxFileSystem::CleanUpHandlers();
d81152f4	570	}
5526e819 VS	571	};
	572
	573	IMPLEMENT_DYNAMIC_CLASS(wxFileSystemModule, wxModule)
	574
269e8200	575	#endif
24528b0c	576	// wxUSE_FILESYSTEM
5526e819	577
a76015e6 VS	578
a76015e6 VS	579