X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/60431236a330a9f3f1d071719e818812820b4d0c..80f8355d6639f1bb13b00a64cb27aaa2b5088185:/src/common/filesys.cpp

diff --git a/src/common/filesys.cpp b/src/common/filesys.cpp
index ed72a22b7a..038e55407f 100644
--- a/src/common/filesys.cpp
+++ b/src/common/filesys.cpp
@@ -1,5 +1,5 @@
 /////////////////////////////////////////////////////////////////////////////
-// Name:        filesys.cpp
+// Name:        src/common/filesys.cpp
 // Purpose:     wxFileSystem class - interface for opening files
 // Author:      Vaclav Slavik
 // Copyright:   (c) 1999 Vaclav Slavik
@@ -7,40 +7,58 @@
 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
-#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
-#pragma implementation "filesys.h"
-#endif
-
 #include "wx/wxprec.h"
 
 #ifdef __BORLANDC__
-#pragma hdrstop
+    #pragma hdrstop
 #endif
 
 
 #if wxUSE_FILESYSTEM
 
-#include "wx/wfstream.h"
-#include "wx/module.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/log.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
-//--------------------------------------------------------------------------------
+// ----------------------------------------------------------------------------
 
 IMPLEMENT_ABSTRACT_CLASS(wxFileSystemHandler, wxObject)
 
 
+/* static */
 wxString wxFileSystemHandler::GetMimeTypeFromExt(const wxString& location)
 {
     wxString ext, mime;
     wxString loc = GetRightLocation(location);
     wxChar c;
-    int l = loc.Length(), l2;
+    int l = loc.length(), l2;
 
     l2 = l;
     for (int i = l-1; i >= 0; i--)
@@ -64,30 +82,30 @@ wxString wxFileSystemHandler::GetMimeTypeFromExt(const wxString& location)
         static const wxFileTypeInfo fallbacks[] =
         {
             wxFileTypeInfo(_T("image/jpeg"),
-                           _T(""),
-                           _T(""),
+                           wxEmptyString,
+                           wxEmptyString,
                            _T("JPEG image (from fallback)"),
-                           _T("jpg"), _T("jpeg"), _T("JPG"), _T("JPEG"), NULL),
+                           _T("jpg"), _T("jpeg"), _T("JPG"), _T("JPEG"), wxNullPtr),
             wxFileTypeInfo(_T("image/gif"),
-                           _T(""),
-                           _T(""),
+                           wxEmptyString,
+                           wxEmptyString,
                            _T("GIF image (from fallback)"),
-                           _T("gif"), _T("GIF"), NULL),
+                           _T("gif"), _T("GIF"), wxNullPtr),
             wxFileTypeInfo(_T("image/png"),
-                           _T(""),
-                           _T(""),
+                           wxEmptyString,
+                           wxEmptyString,
                            _T("PNG image (from fallback)"),
-                           _T("png"), _T("PNG"), NULL),
+                           _T("png"), _T("PNG"), wxNullPtr),
             wxFileTypeInfo(_T("image/bmp"),
-                           _T(""),
-                           _T(""),
+                           wxEmptyString,
+                           wxEmptyString,
                            _T("windows bitmap image (from fallback)"),
-                           _T("bmp"), _T("BMP"), NULL),
+                           _T("bmp"), _T("BMP"), wxNullPtr),
             wxFileTypeInfo(_T("text/html"),
-                           _T(""),
-                           _T(""),
+                           wxEmptyString,
+                           wxEmptyString,
                            _T("HTML document (from fallback)"),
-                           _T("htm"), _T("html"), _T("HTM"), _T("HTML"), NULL),
+                           _T("htm"), _T("html"), _T("HTM"), _T("HTML"), wxNullPtr),
             // must terminate the table with this!
             wxFileTypeInfo()
         };
@@ -121,10 +139,11 @@ wxString wxFileSystemHandler::GetMimeTypeFromExt(const wxString& location)
 
 
 
-wxString wxFileSystemHandler::GetProtocol(const wxString& location) const
+/* static */
+wxString wxFileSystemHandler::GetProtocol(const wxString& location)
 {
     wxString s = wxEmptyString;
-    int i, l = location.Length();
+    int i, l = location.length();
     bool fnd = false;
 
     for (i = l-1; (i >= 0) && ((location[i] != wxT('#')) || (!fnd)); i--) {
@@ -136,21 +155,23 @@ wxString wxFileSystemHandler::GetProtocol(const wxString& location) const
 }
 
 
-wxString wxFileSystemHandler::GetLeftLocation(const wxString& location) const
+/* static */
+wxString wxFileSystemHandler::GetLeftLocation(const wxString& location)
 {
     int i;
     bool fnd = false;
 
-    for (i = location.Length()-1; i >= 0; i--) {
+    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
+/* static */
+wxString wxFileSystemHandler::GetRightLocation(const wxString& location)
 {
-    int i, l = location.Length();
+    int i, l = location.length();
     int l2 = l + 1;
 
     for (i = l-1;
@@ -164,10 +185,11 @@ wxString wxFileSystemHandler::GetRightLocation(const wxString& location) const
     else return location.Mid(i + 1, l2 - i - 2);
 }
 
-wxString wxFileSystemHandler::GetAnchor(const wxString& location) const
+/* static */
+wxString wxFileSystemHandler::GetAnchor(const wxString& location)
 {
     wxChar c;
-    int l = location.Length();
+    int l = location.length();
 
     for (int i = l-1; i >= 0; i--) {
         c = location[i];
@@ -213,7 +235,13 @@ wxFSFile* wxLocalFSHandler::OpenFile(wxFileSystem& WXUNUSED(fs), const wxString&
 
     // 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;
@@ -222,7 +250,7 @@ wxFSFile* wxLocalFSHandler::OpenFile(wxFileSystem& WXUNUSED(fs), const wxString&
 
     return new wxFSFile(is,
                         right,
-                        GetMimeTypeFromExt(location),
+                        wxEmptyString,
                         GetAnchor(location)
 #if wxUSE_DATETIME
                         ,wxDateTime(wxFileModificationTime(fullpath))
@@ -254,13 +282,19 @@ IMPLEMENT_ABSTRACT_CLASS(wxFSFile, wxObject)
 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;
 
-    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
 
@@ -279,7 +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('.'))
         {
-            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--) {}
@@ -302,13 +336,13 @@ void wxFileSystem::ChangePathTo(const wxString& location, bool 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
     {
-        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('/'))
             {
@@ -330,7 +364,7 @@ void wxFileSystem::ChangePathTo(const wxString& location, bool is_dir)
         }
         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(':'))
                 {
@@ -338,7 +372,7 @@ void wxFileSystem::ChangePathTo(const wxString& location, bool is_dir)
                     break;
                 }
             }
-            if (i == (int) m_Path.Length())
+            if (i == (int) m_Path.length())
                 m_Path = wxEmptyString;
         }
         else
@@ -350,19 +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;
     wxChar meta;
     wxFSFile *s = NULL;
     wxList::compatibility_iterator node;
 
-    ln = loc.Length();
+    ln = loc.length();
     meta = 0;
     for (i = 0; i < ln; i++)
     {
-        switch (loc[i])
+        switch ( loc[i].GetValue() )
         {
             case wxT('/') : case wxT(':') : case wxT('#') :
                 meta = loc[i];
@@ -381,7 +437,7 @@ wxFSFile* wxFileSystem::OpenFile(const wxString& location)
             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();
@@ -397,12 +453,21 @@ wxFSFile* wxFileSystem::OpenFile(const wxString& location)
             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 && (flags & wxFS_SEEKABLE) != 0 && !s->GetStream()->IsSeekable())
+    {
+        wxBackedInputStream *stream;
+        stream = new wxBackedInputStream(s->DetachStream());
+        stream->FindLength();
+        s->SetStream(stream);
+    }
+
     return (s);
 }
 
@@ -415,24 +480,30 @@ wxString wxFileSystem::FindFirst(const wxString& spec, int flags)
 
     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)
     {
-        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);
+        }
         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);
+        }
         node = node->GetNext();
     }
 
@@ -447,13 +518,74 @@ wxString wxFileSystem::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)
 {
-    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()
 {
@@ -482,8 +614,7 @@ wxFileName wxFileSystem::URLToFileName(const wxString& url)
         path = path.Mid(2);
 #endif
 
-    path.Replace(wxT("%25"), wxT("%"));
-    path.Replace(wxT("%3A"), wxT(":"));
+    path = wxURI::Unescape(path);
 
 #ifdef __WXMSW__
     // file urls either start with a forward slash (local harddisk),
@@ -495,7 +626,7 @@ wxFileName wxFileSystem::URLToFileName(const wxString& url)
     }
     else if ( (url.Find(wxT("file://")) == 0) &&
               (path.Find(wxT('/')) != wxNOT_FOUND) &&
-              (path.Length() > 1) && (path[1u] != wxT(':')) )
+              (path.length() > 1) && (path[1u] != wxT(':')) )
     {
         path = wxT("//") + path;
     }
@@ -530,7 +661,8 @@ wxString wxFileSystem::FileNameToURL(const wxFileName& filename)
 #endif
 
     url.Replace(g_nativePathString, g_unixPathString);
-    url.Replace(wxT("%"), wxT("%25"));
+    url.Replace(wxT("%"), wxT("%25")); // '%'s must be replaced first!
+    url.Replace(wxT("#"), wxT("%23"));
     url.Replace(wxT(":"), wxT("%3A"));
     url = wxT("file:") + url;
     return url;
@@ -544,21 +676,31 @@ class wxFileSystemModule : public wxModule
     DECLARE_DYNAMIC_CLASS(wxFileSystemModule)
 
     public:
+        wxFileSystemModule() :
+            wxModule(),
+            m_handler(NULL)
+        {
+        }
+
         virtual bool OnInit()
         {
-            wxFileSystem::AddHandler(new wxLocalFSHandler);
+            m_handler = new wxLocalFSHandler;
+            wxFileSystem::AddHandler(m_handler);
             return true;
         }
         virtual void OnExit()
         {
+            delete wxFileSystem::RemoveHandler(m_handler);
+
             wxFileSystem::CleanUpHandlers();
         }
+
+    private:
+        wxFileSystemHandler* m_handler;
+
 };
 
 IMPLEMENT_DYNAMIC_CLASS(wxFileSystemModule, wxModule)
 
 #endif
   // wxUSE_FILESYSTEM
-
-
-