document On{Open,Save}Document()

[wxWidgets.git] / src / common / filesys.cpp

diff --git a/src/common/filesys.cpp b/src/common/filesys.cpp
index 8e26b5d9042a2d65ddabab31b6e0901a188e9f3c..71dc13788b64e584e8970e1a8ceadd764827c200 100644 (file)
--- a/src/common/filesys.cpp
+++ b/src/common/filesys.cpp
@@ -1,50 +1,64 @@
 /////////////////////////////////////////////////////////////////////////////
 /////////////////////////////////////////////////////////////////////////////

-// Name:        filesys.cpp
+// Name:        src/common/filesys.cpp

 // Purpose:     wxFileSystem class - interface for opening files
 // Author:      Vaclav Slavik
 // Copyright:   (c) 1999 Vaclav Slavik
 // CVS-ID:      $Id$
 // Purpose:     wxFileSystem class - interface for opening files
 // Author:      Vaclav Slavik
 // Copyright:   (c) 1999 Vaclav Slavik
 // CVS-ID:      $Id$

-// Licence:     wxWindows Licence
+// Licence:     wxWindows licence

 /////////////////////////////////////////////////////////////////////////////
 
 /////////////////////////////////////////////////////////////////////////////
 

-#ifdef __GNUG__
-#pragma implementation "filesys.h"
-#endif
-

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

-#pragma hdrstop
+    #pragma hdrstop

 #endif
 
 
 #if wxUSE_FILESYSTEM
 
 #endif
 
 
 #if wxUSE_FILESYSTEM
 

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

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

+
+#ifndef WX_PRECOMP
+    #include "wx/log.h"
+    #include "wx/module.h"
+#endif
+
+#include "wx/wfstream.h"

 #include "wx/mimetype.h"
 #include "wx/filename.h"
 #include "wx/mimetype.h"
 #include "wx/filename.h"

+#include "wx/tokenzr.h"
+#include "wx/uri.h"
+#include "wx/private/fileback.h"
+
+// ----------------------------------------------------------------------------
+// wxFSFile
+// ----------------------------------------------------------------------------

 
 

+const wxString& wxFSFile::GetMimeType() const
+{
+    if ( m_MimeType.empty() && !m_Location.empty() )
+    {
+        wxConstCast(this, wxFSFile)->m_MimeType =
+            wxFileSystemHandler::GetMimeTypeFromExt(m_Location);
+    }

 
 

+    return m_MimeType;
+}

 
 

-//--------------------------------------------------------------------------------
+// ----------------------------------------------------------------------------

 // wxFileSystemHandler
 // wxFileSystemHandler

-//--------------------------------------------------------------------------------
+// ----------------------------------------------------------------------------

 
 IMPLEMENT_ABSTRACT_CLASS(wxFileSystemHandler, wxObject)
 
 
 
 IMPLEMENT_ABSTRACT_CLASS(wxFileSystemHandler, wxObject)
 
 

-#if wxUSE_MIMETYPE
-static wxFileTypeInfo *gs_FSMimeFallbacks = NULL;
-#endif
-
+/* static */

 wxString wxFileSystemHandler::GetMimeTypeFromExt(const wxString& location)
 {
     wxString ext, mime;
     wxString loc = GetRightLocation(location);
 wxString wxFileSystemHandler::GetMimeTypeFromExt(const wxString& location)
 {
     wxString ext, mime;
     wxString loc = GetRightLocation(location);

-    char c;
-    int l = loc.Length(), l2;
+    wxChar c;
+    int l = loc.length(), l2;

 
     l2 = l;
     for (int i = l-1; i >= 0; i--)
 
     l2 = l;
     for (int i = l-1; i >= 0; i--)


@@ -62,10 +76,41 @@ wxString wxFileSystemHandler::GetMimeTypeFromExt(const wxString& location)
     }
 
 #if wxUSE_MIMETYPE
     }
 
 #if wxUSE_MIMETYPE

-    static bool s_MinimalMimeEnsured = FALSE;
-    if (!s_MinimalMimeEnsured) {
-        wxTheMimeTypesManager->AddFallbacks(gs_FSMimeFallbacks);
-        s_MinimalMimeEnsured = TRUE;
+    static bool s_MinimalMimeEnsured = false;
+    if (!s_MinimalMimeEnsured)
+    {
+        static const wxFileTypeInfo fallbacks[] =
+        {
+            wxFileTypeInfo(_T("image/jpeg"),
+                           wxEmptyString,
+                           wxEmptyString,
+                           _T("JPEG image (from fallback)"),
+                           _T("jpg"), _T("jpeg"), _T("JPG"), _T("JPEG"), wxNullPtr),
+            wxFileTypeInfo(_T("image/gif"),
+                           wxEmptyString,
+                           wxEmptyString,
+                           _T("GIF image (from fallback)"),
+                           _T("gif"), _T("GIF"), wxNullPtr),
+            wxFileTypeInfo(_T("image/png"),
+                           wxEmptyString,
+                           wxEmptyString,
+                           _T("PNG image (from fallback)"),
+                           _T("png"), _T("PNG"), wxNullPtr),
+            wxFileTypeInfo(_T("image/bmp"),
+                           wxEmptyString,
+                           wxEmptyString,
+                           _T("windows bitmap image (from fallback)"),
+                           _T("bmp"), _T("BMP"), wxNullPtr),
+            wxFileTypeInfo(_T("text/html"),
+                           wxEmptyString,
+                           wxEmptyString,
+                           _T("HTML document (from fallback)"),
+                           _T("htm"), _T("html"), _T("HTM"), _T("HTML"), wxNullPtr),
+            // must terminate the table with this!
+            wxFileTypeInfo()
+        };
+        wxTheMimeTypesManager->AddFallbacks(fallbacks);
+        s_MinimalMimeEnsured = true;

     }
 
     wxFileType *ft = wxTheMimeTypesManager->GetFileTypeFromExtension(ext);
     }
 
     wxFileType *ft = wxTheMimeTypesManager->GetFileTypeFromExtension(ext);


@@ -78,15 +123,15 @@ wxString wxFileSystemHandler::GetMimeTypeFromExt(const wxString& location)
 
     return mime;
 #else
 
     return mime;
 #else

-    if ( ext.IsSameAs(wxT("htm"), FALSE) || ext.IsSameAs(_T("html"), FALSE) )
+    if ( ext.IsSameAs(wxT("htm"), false) || ext.IsSameAs(_T("html"), false) )

         return wxT("text/html");
         return wxT("text/html");

-    if ( ext.IsSameAs(wxT("jpg"), FALSE) || ext.IsSameAs(_T("jpeg"), FALSE) )
+    if ( ext.IsSameAs(wxT("jpg"), false) || ext.IsSameAs(_T("jpeg"), false) )

         return wxT("image/jpeg");
         return wxT("image/jpeg");

-    if ( ext.IsSameAs(wxT("gif"), FALSE) )
+    if ( ext.IsSameAs(wxT("gif"), false) )

         return wxT("image/gif");
         return wxT("image/gif");

-    if ( ext.IsSameAs(wxT("png"), FALSE) )
+    if ( ext.IsSameAs(wxT("png"), false) )

         return wxT("image/png");
         return wxT("image/png");

-    if ( ext.IsSameAs(wxT("bmp"), FALSE) )
+    if ( ext.IsSameAs(wxT("bmp"), false) )

         return wxT("image/bmp");
     return wxEmptyString;
 #endif
         return wxT("image/bmp");
     return wxEmptyString;
 #endif


@@ -94,15 +139,15 @@ wxString wxFileSystemHandler::GetMimeTypeFromExt(const wxString& location)
 
 
 
 
 
 

-wxString wxFileSystemHandler::GetProtocol(const wxString& location) const
+/* static */
+wxString wxFileSystemHandler::GetProtocol(const wxString& location)

 {
     wxString s = wxEmptyString;
 {
     wxString s = wxEmptyString;

-    int i, l = location.Length();
-    bool fnd;
+    int i, l = location.length();
+    bool fnd = false;

 
 

-    fnd = FALSE;

     for (i = l-1; (i >= 0) && ((location[i] != wxT('#')) || (!fnd)); i--) {
     for (i = l-1; (i >= 0) && ((location[i] != wxT('#')) || (!fnd)); i--) {

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


@@ -110,32 +155,41 @@ wxString wxFileSystemHandler::GetProtocol(const wxString& location) const
 }
 
 
 }
 
 

-wxString wxFileSystemHandler::GetLeftLocation(const wxString& location) const
+/* static */
+wxString wxFileSystemHandler::GetLeftLocation(const wxString& location)

 {
     int i;
 {
     int i;

-    bool fnd;
+    bool fnd = false;

 
 

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

-wxString wxFileSystemHandler::GetRightLocation(const wxString& location) const
+/* static */
+wxString wxFileSystemHandler::GetRightLocation(const wxString& location)

 {
 {

-    int i, l = location.Length();
+    int i, l = location.length();

     int l2 = l + 1;
     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;}
+
+    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);
 }
 
     if (i == 0) return wxEmptyString;
     else return location.Mid(i + 1, l2 - i - 2);
 }
 

-wxString wxFileSystemHandler::GetAnchor(const wxString& location) const
+/* static */
+wxString wxFileSystemHandler::GetAnchor(const wxString& location)

 {
 {

-    char c;
-    int l = location.Length();
+    wxChar c;
+    int l = location.length();

 
     for (int i = l-1; i >= 0; i--) {
         c = location[i];
 
     for (int i = l-1; i >= 0; i--) {
         c = location[i];


@@ -172,25 +226,42 @@ bool wxLocalFSHandler::CanOpen(const wxString& location)
 wxFSFile* wxLocalFSHandler::OpenFile(wxFileSystem& WXUNUSED(fs), const wxString& location)
 {
     // location has Unix path separators
 wxFSFile* wxLocalFSHandler::OpenFile(wxFileSystem& WXUNUSED(fs), const wxString& location)
 {
     // location has Unix path separators

-    wxString right = ms_root + GetRightLocation(location);
-    wxString nativePath = wxFileSystem::URLToNativePath(right);
-    wxFileName fn(nativePath, wxPATH_UNIX);
+    wxString right = GetRightLocation(location);
+    wxFileName fn = wxFileSystem::URLToFileName(right);
+    wxString fullpath = ms_root + fn.GetFullPath();

 
 

-    if (!wxFileExists(fn.GetFullPath()))
+    if (!wxFileExists(fullpath))

         return (wxFSFile*) NULL;
 
         return (wxFSFile*) NULL;
 

-    return new wxFSFile(new wxFFileInputStream(fn.GetFullPath()),
-                        right,
-                        GetMimeTypeFromExt(location),
-                        GetAnchor(location),
-                        wxDateTime(wxFileModificationTime(fn.GetFullPath())));
+    // we need to check whether we can really read from this file, otherwise
+    // wxFSFile is not going to work
+#if wxUSE_FFILE
+    wxFFileInputStream *is = new wxFFileInputStream(fullpath);
+#elif wxUSE_FILE
+    wxFileInputStream *is = new wxFileInputStream(fullpath);
+#else
+#error One of wxUSE_FILE or wxUSE_FFILE must be set to 1 for wxFSHandler to work
+#endif
+    if ( !is->Ok() )
+    {
+        delete is;
+        return (wxFSFile*) NULL;
+    }

 
 

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

 }
 
 wxString wxLocalFSHandler::FindFirst(const wxString& spec, int flags)
 {
 }
 
 wxString wxLocalFSHandler::FindFirst(const wxString& spec, int flags)
 {

-    wxString right = ms_root + GetRightLocation(spec);
-    return wxFindFirstFile(right, flags);
+    wxFileName fn = wxFileSystem::URLToFileName(GetRightLocation(spec));
+    return wxFindFirstFile(ms_root + fn.GetFullPath(), flags);

 }
 
 wxString wxLocalFSHandler::FindNext()
 }
 
 wxString wxLocalFSHandler::FindNext()


@@ -211,13 +282,19 @@ IMPLEMENT_ABSTRACT_CLASS(wxFSFile, wxObject)
 wxList wxFileSystem::m_Handlers;
 
 
 wxList wxFileSystem::m_Handlers;
 
 

+wxFileSystem::~wxFileSystem()
+{
+    WX_CLEAR_HASH_MAP(wxFSHandlerHash, m_LocalHandlers)
+}
+
+

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

-    cnt = p.Length();
+    cnt = p.length();

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


@@ -236,7 +313,7 @@ static wxString MakeCorrectPath(const wxString& path)
         r << p.GetChar(i);
         if (p.GetChar(i) == wxT('/') && p.GetChar(i-1) == wxT('.') && p.GetChar(i-2) == wxT('.'))
         {
         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--) {}
+            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--) {}
             if (j >= 0 && r.GetChar(j) != wxT(':'))
             {
                 for (j = j - 1; j >= 0 && r.GetChar(j) != wxT('/') && r.GetChar(j) != wxT(':'); j--) {}


@@ -259,13 +336,13 @@ void wxFileSystem::ChangePathTo(const wxString& location, bool is_dir)
 
     if (is_dir)
     {
 
     if (is_dir)
     {

-        if (m_Path.Length() > 0 && m_Path.Last() != wxT('/') && m_Path.Last() != wxT(':'))
+        if (m_Path.length() > 0 && m_Path.Last() != wxT('/') && m_Path.Last() != wxT(':'))

             m_Path << wxT('/');
     }
 
     else
     {
             m_Path << wxT('/');
     }
 
     else
     {

-        for (i = m_Path.Length()-1; i >= 0; i--)
+        for (i = m_Path.length()-1; i >= 0; i--)

         {
             if (m_Path[(unsigned int) i] == wxT('/'))
             {
         {
             if (m_Path[(unsigned int) i] == wxT('/'))
             {


@@ -287,7 +364,7 @@ void wxFileSystem::ChangePathTo(const wxString& location, bool is_dir)
         }
         if (pathpos == -1)
         {
         }
         if (pathpos == -1)
         {

-            for (i = 0; i < (int) m_Path.Length(); i++)
+            for (i = 0; i < (int) m_Path.length(); i++)

             {
                 if (m_Path[(unsigned int) i] == wxT(':'))
                 {
             {
                 if (m_Path[(unsigned int) i] == wxT(':'))
                 {


@@ -295,7 +372,7 @@ void wxFileSystem::ChangePathTo(const wxString& location, bool is_dir)
                     break;
                 }
             }
                     break;
                 }
             }

-            if (i == (int) m_Path.Length())
+            if (i == (int) m_Path.length())

                 m_Path = wxEmptyString;
         }
         else
                 m_Path = wxEmptyString;
         }
         else


@@ -307,19 +384,41 @@ void wxFileSystem::ChangePathTo(const wxString& location, bool is_dir)
 
 
 
 
 
 

-wxFSFile* wxFileSystem::OpenFile(const wxString& location)
+wxFileSystemHandler *wxFileSystem::MakeLocal(wxFileSystemHandler *h)

 {
 {

+    wxClassInfo *classinfo = h->GetClassInfo();
+
+    if (classinfo->IsDynamic())
+    {
+        wxFileSystemHandler*& local = m_LocalHandlers[classinfo];
+        if (!local)
+            local = (wxFileSystemHandler*)classinfo->CreateObject();
+        return local;
+    }
+    else
+    {
+        return h;
+    }
+}
+
+
+
+wxFSFile* wxFileSystem::OpenFile(const wxString& location, int flags)
+{
+    if ((flags & wxFS_READ) == 0)
+        return NULL;
+

     wxString loc = MakeCorrectPath(location);
     unsigned i, ln;
     wxString loc = MakeCorrectPath(location);
     unsigned i, ln;

-    char meta;
+    wxChar meta;

     wxFSFile *s = NULL;
     wxFSFile *s = NULL;

-    wxNode *node;
+    wxList::compatibility_iterator node;

 
 

-    ln = loc.Length();
+    ln = loc.length();

     meta = 0;
     for (i = 0; i < ln; i++)
     {
     meta = 0;
     for (i = 0; i < ln; i++)
     {

-        switch (loc[i])
+        switch ( loc[i].GetValue() )

         {
             case wxT('/') : case wxT(':') : case wxT('#') :
                 meta = loc[i];
         {
             case wxT('/') : case wxT(':') : case wxT('#') :
                 meta = loc[i];


@@ -338,7 +437,7 @@ wxFSFile* wxFileSystem::OpenFile(const wxString& location)
             wxFileSystemHandler *h = (wxFileSystemHandler*) node -> GetData();
             if (h->CanOpen(m_Path + loc))
             {
             wxFileSystemHandler *h = (wxFileSystemHandler*) node -> GetData();
             if (h->CanOpen(m_Path + loc))
             {

-                s = h->OpenFile(*this, m_Path + loc);
+                s = MakeLocal(h)->OpenFile(*this, m_Path + loc);

                 if (s) { m_LastName = m_Path + loc; break; }
             }
             node = node->GetNext();
                 if (s) { m_LastName = m_Path + loc; break; }
             }
             node = node->GetNext();


@@ -354,12 +453,21 @@ wxFSFile* wxFileSystem::OpenFile(const wxString& location)
             wxFileSystemHandler *h = (wxFileSystemHandler*) node->GetData();
             if (h->CanOpen(loc))
             {
             wxFileSystemHandler *h = (wxFileSystemHandler*) node->GetData();
             if (h->CanOpen(loc))
             {

-                s = h->OpenFile(*this, loc);
+                s = MakeLocal(h)->OpenFile(*this, loc);

                 if (s) { m_LastName = loc; break; }
             }
             node = node->GetNext();
         }
     }
                 if (s) { m_LastName = loc; break; }
             }
             node = node->GetNext();
         }
     }

+
+    if (s && (flags & wxFS_SEEKABLE) != 0 && !s->GetStream()->IsSeekable())
+    {
+        wxBackedInputStream *stream;
+        stream = new wxBackedInputStream(s->DetachStream());
+        stream->FindLength();
+        s->SetStream(stream);
+    }
+

     return (s);
 }
 
     return (s);
 }
 


@@ -367,29 +475,35 @@ wxFSFile* wxFileSystem::OpenFile(const wxString& location)
 
 wxString wxFileSystem::FindFirst(const wxString& spec, int flags)
 {
 
 wxString wxFileSystem::FindFirst(const wxString& spec, int flags)
 {

-    wxNode *node;
+    wxList::compatibility_iterator node;

     wxString spec2(spec);
 
     m_FindFileHandler = NULL;
 
     wxString spec2(spec);
 
     m_FindFileHandler = NULL;
 

-    for (int i = spec2.Length()-1; i >= 0; i--)
+    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)
     {
         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))
+        wxFileSystemHandler *h = (wxFileSystemHandler*) node -> GetData();
+        if (h -> CanOpen(m_Path + spec2))
+        {
+            m_FindFileHandler = MakeLocal(h);

             return m_FindFileHandler -> FindFirst(m_Path + spec2, flags);
             return m_FindFileHandler -> FindFirst(m_Path + spec2, flags);

+        }

         node = node->GetNext();
     }
 
     node = m_Handlers.GetFirst();
     while (node)
     {
         node = node->GetNext();
     }
 
     node = m_Handlers.GetFirst();
     while (node)
     {

-        m_FindFileHandler = (wxFileSystemHandler*) node -> GetData();
-        if (m_FindFileHandler -> CanOpen(spec2))
+        wxFileSystemHandler *h = (wxFileSystemHandler*) node -> GetData();
+        if (h -> CanOpen(spec2))
+        {
+            m_FindFileHandler = MakeLocal(h);

             return m_FindFileHandler -> FindFirst(spec2, flags);
             return m_FindFileHandler -> FindFirst(spec2, flags);

+        }

         node = node->GetNext();
     }
 
         node = node->GetNext();
     }
 


@@ -404,71 +518,164 @@ wxString wxFileSystem::FindNext()
     else return m_FindFileHandler -> FindNext();
 }
 
     else return m_FindFileHandler -> FindNext();
 }
 

+bool wxFileSystem::FindFileInPath(wxString *pStr,
+                                  const wxString& path,
+                                  const wxString& basename)
+{
+    // we assume that it's not empty
+    wxCHECK_MSG( !basename.empty(), false,
+                _T("empty file name in wxFileSystem::FindFileInPath"));
+
+    wxString name;
+    // skip path separator in the beginning of the file name if present
+    if ( wxIsPathSeparator(basename[0u]) )
+        name = basename.substr(1);
+    else
+        name = basename;
+
+    wxStringTokenizer tokenizer(path, wxPATH_SEP);
+    while ( tokenizer.HasMoreTokens() )
+    {
+        wxString strFile = tokenizer.GetNextToken();
+        if ( !wxEndsWithPathSeparator(strFile) )
+            strFile += wxFILE_SEP_PATH;
+        strFile += name;
+
+        wxFSFile *file = OpenFile(strFile);
+        if ( file )
+        {
+            delete file;
+            *pStr = strFile;
+            return true;
+        }
+    }

 
 

+    return false;
+}

 
 void wxFileSystem::AddHandler(wxFileSystemHandler *handler)
 {
 
 void wxFileSystem::AddHandler(wxFileSystemHandler *handler)
 {

-    m_Handlers.Append(handler);
+    // prepend the handler to the beginning of the list because handlers added
+    // last should have the highest priority to allow overriding them
+    m_Handlers.Insert((size_t)0, handler);
+}
+
+wxFileSystemHandler* wxFileSystem::RemoveHandler(wxFileSystemHandler *handler)
+{
+    // if handler has already been removed (or deleted)
+    // we return NULL. This is by design in case
+    // CleanUpHandlers() is called before RemoveHandler
+    // is called, as we cannot control the order
+    // which modules are unloaded
+    if (!m_Handlers.DeleteObject(handler))
+        return NULL;
+
+    return handler;

 }
 
 
 }
 
 

+bool wxFileSystem::HasHandlerForPath(const wxString &location)
+{
+    for ( wxList::compatibility_iterator node = m_Handlers.GetFirst();
+           node; node = node->GetNext() )
+    {
+        wxFileSystemHandler *h = (wxFileSystemHandler*) node->GetData();
+        if (h->CanOpen(location))
+            return true;
+    }
+
+    return false;
+}
+

 void wxFileSystem::CleanUpHandlers()
 {
 void wxFileSystem::CleanUpHandlers()
 {

-    m_Handlers.DeleteContents(TRUE);
-    m_Handlers.Clear();
+    WX_CLEAR_LIST(wxList, m_Handlers);

 }
 
 }
 

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

 
 // Returns the native path for a file URL
 
 // Returns the native path for a file URL

-wxString wxFileSystem::URLToNativePath( const wxString& url ) 
+wxFileName wxFileSystem::URLToFileName(const wxString& url)

 {
 {

-       wxString path = 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

 
 

-       if ( path.Find(wxT("file://")) == 0 )
-       {
-               path = path.Mid(7) ;
-       }
+    path = wxURI::Unescape(path);

 
 

-       // file urls either start with a forward slash (local harddisk),
+#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
     // 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) ;
-       }
-#ifdef __WXMSW__
-       else if ( (url.Find(wxT("file://")) == 0) &&
+    if ( path[0u] == wxT('/') && path [1u] != wxT('/'))
+    {
+        path = path.Mid(1);
+    }
+    else if ( (url.Find(wxT("file://")) == 0) &&

               (path.Find(wxT('/')) != wxNOT_FOUND) &&
               (path.Find(wxT('/')) != wxNOT_FOUND) &&

-              (path.Length() > 1) && (path[1u] != wxT(':')) )
-       {
-               path = wxT("\\\\") + path ;
-       }
+              (path.length() > 1) && (path[1u] != wxT(':')) )
+    {
+        path = wxT("//") + path;
+    }

 #endif
 #endif

-       path.Replace(g_unixPathString, g_nativePathString) ;

 
 

-       return path ;
+    path.Replace(g_unixPathString, g_nativePathString);
+
+    return wxFileName(path, wxPATH_NATIVE);

 }
 
 // Returns the file URL for a native path
 }
 
 // Returns the file URL for a native path

-wxString wxFileSystem::NativePathToURL( const wxString& path ) 
+wxString wxFileSystem::FileNameToURL(const wxFileName& filename)

 {
 {

-       wxString url = path ;
-#ifdef __WXMSW__
-       // unc notation
-       if ( url.Find(wxT("\\\\")) == 0 ) 
-       {
-               url = url.Mid(2) ;
-       }
-       else
+    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 = wxT("//") + url.Mid(2);
+    }
+    else
+    {
+        url = wxT("/") + url;
+#ifdef __WXMAC__
+        url = wxT("/") + url;
+#endif
+
+    }

 #endif
 #endif

-       {
-               url = wxT("/") + url ;
-       }
-       url.Replace(g_nativePathString, g_unixPathString) ;
-       url = wxT("file://") + url ;
-       return url ;
+
+    url.Replace(g_nativePathString, g_unixPathString);
+    url.Replace(wxT("%"), wxT("%25")); // '%'s must be replaced first!
+    url.Replace(wxT("#"), wxT("%23"));
+
+    // notice that all colons *must* be encoded in the paths used by
+    // wxFileSystem even though this makes URLs produced by this method
+    // unusable with IE under Windows as it requires "file:///c:/foo.bar" and
+    // doesn't accept "file:///c%3a/foo.bar" -- but then we never made any
+    // guarantees about general suitability of the strings returned by this
+    // method, they must work with wxFileSystem only and not encoding the colon
+    // breaks handling of "http://wherever/whatever.zip#zip:filename.ext" URLs
+    // so we really can't do this without heavy changes to the parsing code
+    // here, in particular in GetRightLocation()
+    url.Replace(wxT(":"), wxT("%3A"));
+    url = wxT("file:") + url;
+    return url;

 }
 
 
 }
 
 


@@ -479,61 +686,31 @@ class wxFileSystemModule : public wxModule
     DECLARE_DYNAMIC_CLASS(wxFileSystemModule)
 
     public:
     DECLARE_DYNAMIC_CLASS(wxFileSystemModule)
 
     public:

-        virtual bool OnInit()
+        wxFileSystemModule() :
+            wxModule(),
+            m_handler(NULL)

         {
         {

-            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 bool OnInit()
+        {
+            m_handler = new wxLocalFSHandler;
+            wxFileSystem::AddHandler(m_handler);
+            return true;

         }
         virtual void OnExit()
         {
         }
         virtual void OnExit()
         {

-        #if wxUSE_MIMETYPE
-            delete [] gs_FSMimeFallbacks;
-        #endif
+            delete wxFileSystem::RemoveHandler(m_handler);
+

             wxFileSystem::CleanUpHandlers();
         }
             wxFileSystem::CleanUpHandlers();
         }

+
+    private:
+        wxFileSystemHandler* m_handler;
+

 };
 
 IMPLEMENT_DYNAMIC_CLASS(wxFileSystemModule, wxModule)
 
 #endif
   // wxUSE_FILESYSTEM
 };
 
 IMPLEMENT_DYNAMIC_CLASS(wxFileSystemModule, wxModule)
 
 #endif
   // wxUSE_FILESYSTEM

-
-
-