X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/5526e819eca4465ed5520d49bccfebc6a28045e0..5df8beb1d95030c94f678458fc1980049f537992:/include/wx/filesys.h?ds=sidebyside

diff --git a/include/wx/filesys.h b/include/wx/filesys.h
index 5ff10cb25e..cd2af3bbeb 100644
--- a/include/wx/filesys.h
+++ b/include/wx/filesys.h
@@ -1,26 +1,35 @@
 /////////////////////////////////////////////////////////////////////////////
-// Name:        filesys.h
+// Name:        wx/filesys.h
 // Purpose:     class for opening files - virtual file system
 // Author:      Vaclav Slavik
 // Copyright:   (c) 1999 Vaclav Slavik
-// Licence:     wxWindows Licence
+// RCS-ID:      $Id$
+// Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
 #ifndef __FILESYS_H__
 #define __FILESYS_H__
 
-#ifdef __GNUG__
-#pragma interface
+#include "wx/defs.h"
+
+#if !wxUSE_STREAMS
+#error You cannot compile virtual file systems without wxUSE_STREAMS
+#endif
+
+#if wxUSE_HTML && !wxUSE_FILESYSTEM
+#error You cannot compile wxHTML without virtual file systems
 #endif
 
-#include <wx/stream.h>
-#include <wx/mimetype.h>
-#include <wx/url.h>
+#if wxUSE_FILESYSTEM
 
+#include "wx/stream.h"
+#include "wx/datetime.h"
+#include "wx/filename.h"
+#include "wx/hashmap.h"
 
-class wxFSFile;
-class wxFileSystemHandler;
-class wxFileSystem;
+class WXDLLIMPEXP_FWD_BASE wxFSFile;
+class WXDLLIMPEXP_FWD_BASE wxFileSystemHandler;
+class WXDLLIMPEXP_FWD_BASE wxFileSystem;
 
 //--------------------------------------------------------------------------------
 // wxFSFile
@@ -29,38 +38,68 @@ class wxFileSystem;
 //                  (in 'index.htm#chapter2', 'chapter2' is anchor)
 //--------------------------------------------------------------------------------
 
-class WXDLLEXPORT wxFSFile : public wxObject
+class WXDLLIMPEXP_BASE wxFSFile : public wxObject
 {
-    private:
-        wxInputStream *m_Stream;
-        wxString m_Location;
-        wxString m_MimeType;
-        wxString m_Anchor;
-
-    public:
-        wxFSFile(wxInputStream *stream, const wxString& loc, const wxString& mimetype, const wxString& anchor)
-            {
-                m_Stream = stream;
-                m_Location = loc;
-                m_MimeType = mimetype; m_MimeType.MakeLower();
-                m_Anchor = anchor;
-            }
-        virtual ~wxFSFile()
-            {
-                if (m_Stream) delete m_Stream;
-            }
-
-        wxInputStream *GetStream() const {return m_Stream;}
-                // returns stream. This doesn't _create_ stream, it only returns
-                // pointer to it!!
-
-        const wxString& GetMimeType() const {return m_MimeType;}
-                // returns file's mime type
-
-        const wxString& GetLocation() const {return m_Location;}
-                // returns the original location (aka filename) of the file
-
-        const wxString& GetAnchor() const {return m_Anchor;}
+public:
+    wxFSFile(wxInputStream *stream, const wxString& loc,
+             const wxString& mimetype, const wxString& anchor
+#if wxUSE_DATETIME
+             , wxDateTime modif
+#endif // wxUSE_DATETIME
+             )
+    {
+        m_Stream = stream;
+        m_Location = loc;
+        m_MimeType = mimetype.Lower();
+        m_Anchor = anchor;
+#if wxUSE_DATETIME
+        m_Modif = modif;
+#endif // wxUSE_DATETIME
+    }
+
+    virtual ~wxFSFile() { delete m_Stream; }
+
+    // returns stream. This doesn't give away ownership of the stream object.
+    wxInputStream *GetStream() const { return m_Stream; }
+
+    // gives away the ownership of the current stream.
+    wxInputStream *DetachStream()
+    {
+        wxInputStream *stream = m_Stream;
+        m_Stream = NULL;
+        return stream;
+    }
+
+    // deletes the current stream and takes ownership of another.
+    void SetStream(wxInputStream *stream)
+    {
+        delete m_Stream;
+        m_Stream = stream;
+    }
+
+    // returns file's mime type
+    const wxString& GetMimeType() const;
+
+    // returns the original location (aka filename) of the file
+    const wxString& GetLocation() const { return m_Location; }
+
+    const wxString& GetAnchor() const { return m_Anchor; }
+
+#if wxUSE_DATETIME
+    wxDateTime GetModificationTime() const { return m_Modif; }
+#endif // wxUSE_DATETIME
+
+private:
+    wxInputStream *m_Stream;
+    wxString m_Location;
+    wxString m_MimeType;
+    wxString m_Anchor;
+#if wxUSE_DATETIME
+    wxDateTime m_Modif;
+#endif // wxUSE_DATETIME
+
+    DECLARE_ABSTRACT_CLASS(wxFSFile)
+    DECLARE_NO_COPY_CLASS(wxFSFile)
 };
 
 
@@ -74,48 +113,49 @@ class WXDLLEXPORT wxFSFile : public wxObject
 //                  kinds of files (HTPP, FTP, local, tar.gz etc..)
 //--------------------------------------------------------------------------------
 
-class WXDLLEXPORT wxFileSystemHandler : public wxObject
+class WXDLLIMPEXP_BASE wxFileSystemHandler : public wxObject
 {
-    DECLARE_ABSTRACT_CLASS(wxFileSystemHandler)
-
-    public:
-        wxFileSystemHandler() : wxObject() {}
-
-        virtual bool CanOpen(const wxString& location) = 0;
-                // returns TRUE if this handler is able to open given location
-
-        virtual wxFSFile* OpenFile(wxFileSystem& fs, const wxString& location) = 0;
-                // opens given file and returns pointer to input stream.
-                // Returns NULL if opening failed.
-                // The location is always absolute path.
+public:
+    wxFileSystemHandler() : wxObject() {}
+
+    // returns true if this handler is able to open given location
+    virtual bool CanOpen(const wxString& location) = 0;
+
+    // opens given file and returns pointer to input stream.
+    // Returns NULL if opening failed.
+    // The location is always absolute path.
+    virtual wxFSFile* OpenFile(wxFileSystem& fs, const wxString& location) = 0;
+
+    // Finds first/next file that matches spec wildcard. flags can be wxDIR for restricting
+    // the query to directories or wxFILE for files only or 0 for either.
+    // Returns filename or empty string if no more matching file exists
+    virtual wxString FindFirst(const wxString& spec, int flags = 0);
+    virtual wxString FindNext();
+
+    // Returns MIME type of the file - w/o need to open it
+    // (default behaviour is that it returns type based on extension)
+    static wxString GetMimeTypeFromExt(const wxString& location);
+
+protected:
+    // returns protocol ("file", "http", "tar" etc.) The last (most right)
+    // protocol is used:
+    // {it returns "tar" for "file:subdir/archive.tar.gz#tar:/README.txt"}
+    static wxString GetProtocol(const wxString& location);
+
+    // returns left part of address:
+    // {it returns "file:subdir/archive.tar.gz" for "file:subdir/archive.tar.gz#tar:/README.txt"}
+    static wxString GetLeftLocation(const wxString& location);
+
+    // returns anchor part of address:
+    // {it returns "anchor" for "file:subdir/archive.tar.gz#tar:/README.txt#anchor"}
+    // NOTE:  anchor is NOT a part of GetLeftLocation()'s return value
+    static wxString GetAnchor(const wxString& location);
+
+    // returns right part of address:
+    // {it returns "/README.txt" for "file:subdir/archive.tar.gz#tar:/README.txt"}
+    static wxString GetRightLocation(const wxString& location);
 
-    protected:
-        wxString GetProtocol(const wxString& location) const;
-                // returns protocol ("file", "http", "tar" etc.) The last (most right)
-                // protocol is used:
-                // {it returns "tar" for "file:subdir/archive.tar.gz#tar:/README.txt"}
-
-        wxString GetLeftLocation(const wxString& location) const;
-                // returns left part of address:
-                // {it returns "file:subdir/archive.tar.gz" for "file:subdir/archive.tar.gz#tar:/README.txt"}
-
-        wxString GetAnchor(const wxString& location) const;
-                // returns anchor part of address:
-                // {it returns "anchor" for "file:subdir/archive.tar.gz#tar:/README.txt#anchor"}
-                // NOTE:  anchor is NOT a part of GetLeftLocation()'s return value
-
-        wxString GetRightLocation(const wxString& location) const;
-                // returns right part of address:
-                // {it returns "/README.txt" for "file:subdir/archive.tar.gz#tar:/README.txt"}
-
-        wxString GetMimeTypeFromExt(const wxString& location);
-                // Returns MIME type of the file - w/o need to open it
-                // (default behaviour is that it returns type based on extension)
-
-    private:
-        static wxMimeTypesManager m_MimeMng;
-                // MIME manager
-        // (it's static and thus shared by all instances and derived classes)
+    DECLARE_ABSTRACT_CLASS(wxFileSystemHandler)
 };
 
 
@@ -127,44 +167,86 @@ class WXDLLEXPORT wxFileSystemHandler : public wxObject
 //                  kinds of files (HTPP, FTP, local, tar.gz etc..)
 //--------------------------------------------------------------------------------
 
-class WXDLLEXPORT wxFileSystem : public wxObject
+// Open Bit Flags
+enum {
+    wxFS_READ = 1,      // Open for reading
+    wxFS_SEEKABLE = 4   // Returned stream will be seekable
+};
+
+WX_DECLARE_VOIDPTR_HASH_MAP_WITH_DECL(wxFileSystemHandler*, wxFSHandlerHash, class WXDLLIMPEXP_BASE);
+
+class WXDLLIMPEXP_BASE wxFileSystem : public wxObject
 {
-    DECLARE_DYNAMIC_CLASS(wxFileSystem)
+public:
+    wxFileSystem() : wxObject() { m_FindFileHandler = NULL;}
+    virtual ~wxFileSystem();
+
+    // sets the current location. Every call to OpenFile is
+    // relative to this location.
+    // NOTE !!
+    // unless is_dir = true 'location' is *not* the directory but
+    // file contained in this directory
+    // (so ChangePathTo("dir/subdir/xh.htm") sets m_Path to "dir/subdir/")
+    void ChangePathTo(const wxString& location, bool is_dir = false);
+
+    wxString GetPath() const {return m_Path;}
+
+    // opens given file and returns pointer to input stream.
+    // Returns NULL if opening failed.
+    // It first tries to open the file in relative scope
+    // (based on ChangePathTo()'s value) and then as an absolute
+    // path.
+    wxFSFile* OpenFile(const wxString& location, int flags = wxFS_READ);
+
+    // Finds first/next file that matches spec wildcard. flags can be wxDIR for restricting
+    // the query to directories or wxFILE for files only or 0 for either.
+    // Returns filename or empty string if no more matching file exists
+    wxString FindFirst(const wxString& spec, int flags = 0);
+    wxString FindNext();
+
+    // find a file in a list of directories, returns false if not found
+    bool FindFileInPath(wxString *pStr,
+                        const wxString& path, const wxString& file);
+
+    // Adds FS handler.
+    // In fact, this class is only front-end to the FS handlers :-)
+    static void AddHandler(wxFileSystemHandler *handler);
+
+    // Removes FS handler
+    static wxFileSystemHandler* RemoveHandler(wxFileSystemHandler *handler);
+
+    // Returns true if there is a handler which can open the given location.
+    static bool HasHandlerForPath(const wxString& location);
+
+    // remove all items from the m_Handlers list
+    static void CleanUpHandlers();
+
+    // Returns the native path for a file URL
+    static wxFileName URLToFileName(const wxString& url);
+
+    // Returns the file URL for a native path
+    static wxString FileNameToURL(const wxFileName& filename);
+
+
+protected:
+    wxFileSystemHandler *MakeLocal(wxFileSystemHandler *h);
+
+    wxString m_Path;
+            // the path (location) we are currently in
+            // this is path, not file!
+            // (so if you opened test/demo.htm, it is
+            // "test/", not "test/demo.htm")
+    wxString m_LastName;
+            // name of last opened file (full path)
+    static wxList m_Handlers;
+            // list of FS handlers
+    wxFileSystemHandler *m_FindFileHandler;
+            // handler that succeed in FindFirst query
+    wxFSHandlerHash m_LocalHandlers;
+            // Handlers local to this instance
 
-    private:
-        wxString m_Path;
-                // the path (location) we are currently in
-                // this is path, not file!
-                // (so if you opened test/demo.htm, it is
-                // "test/", not "test/demo.htm")
-        wxString m_LastName;
-                // name of last opened file (full path)
-        static wxList m_Handlers;
-                // list of FS handlers
-
-    public:
-        wxFileSystem() : wxObject() {m_Path = m_LastName = wxEmptyString; m_Handlers.DeleteContents(TRUE);}
-
-        void ChangePathTo(const wxString& location, bool is_dir = FALSE);
-                // sets the current location. Every call to OpenFile is
-                // relative to this location.
-                // NOTE !!
-                // unless is_dir = TRUE 'location' is *not* the directory but
-                // file contained in this directory
-                // (so ChangePathTo("dir/subdir/xh.htm") sets m_Path to "dir/subdir/")
-		
-	wxString GetPath() const {return m_Path;}
-
-        wxFSFile* OpenFile(const wxString& location);
-                // opens given file and returns pointer to input stream.
-                // Returns NULL if opening failed.
-                // It first tries to open the file in relative scope
-                // (based on ChangePathTo()'s value) and then as an absolute
-                // path.
-
-        static void AddHandler(wxFileSystemHandler *handler);
-                // Adds FS handler.
-                // In fact, this class is only front-end to the FS hanlers :-)
+    DECLARE_DYNAMIC_CLASS(wxFileSystem)
+    DECLARE_NO_COPY_CLASS(wxFileSystem)
 };
 
 
@@ -191,4 +273,29 @@ special characters :
 
 */
 
-#endif // __FILESYS_H__
+
+class WXDLLIMPEXP_BASE wxLocalFSHandler : public wxFileSystemHandler
+{
+public:
+    virtual bool CanOpen(const wxString& location);
+    virtual wxFSFile* OpenFile(wxFileSystem& fs, const wxString& location);
+    virtual wxString FindFirst(const wxString& spec, int flags = 0);
+    virtual wxString FindNext();
+
+    // wxLocalFSHandler will prefix all filenames with 'root' before accessing
+    // files on disk. This effectively makes 'root' the top-level directory
+    // and prevents access to files outside this directory.
+    // (This is similar to Unix command 'chroot'.)
+    static void Chroot(const wxString& root) { ms_root = root; }
+
+protected:
+    static wxString ms_root;
+};
+
+
+
+#endif
+  // wxUSE_FILESYSTEM
+
+#endif
+  // __FILESYS_H__