[Emacs-diffs] Changes to emacs/src/mac.c

[YAMAMOTO Mitsuharu]

Index: emacs/src/mac.c
diff -u emacs/src/mac.c:1.51 emacs/src/mac.c:1.52
--- emacs/src/mac.c:1.51        Thu Dec 22 08:16:53 2005
+++ emacs/src/mac.c     Sat Dec 24 02:50:11 2005
@@ -79,6 +79,8 @@
 /* The single script context used for all script executions.  */
 static OSAID as_script_context;
 
+static OSErr posix_pathname_to_fsspec P_ ((const char *, FSSpec *));
+static OSErr fsspec_to_posix_pathname P_ ((const FSSpec *, char *, int));
 
 /* When converting from Mac to Unix pathnames, /'s in folder names are
    converted to :'s.  This function, used in copying folder names,
@@ -333,7 +335,7 @@
 mac_aedesc_to_lisp (desc)
      AEDesc *desc;
 {
-  OSErr err;
+  OSErr err = noErr;
   DescType desc_type = desc->descriptorType;
   Lisp_Object result;
 
@@ -397,6 +399,277 @@
   return Fcons (make_unibyte_string ((char *) &desc_type, 4), result);
 }
 
+static pascal OSErr
+mac_coerce_file_name_ptr (type_code, data_ptr, data_size,
+                         to_type, handler_refcon, result)
+     DescType type_code;
+     const void *data_ptr;
+     Size data_size;
+     DescType to_type;
+     long handler_refcon;
+     AEDesc *result;
+{
+  OSErr err;
+
+  if (type_code == TYPE_FILE_NAME)
+    /* Coercion from undecoded file name.  */
+    switch (to_type)
+      {
+      case typeAlias:
+      case typeFSS:
+      case typeFSRef:
+#ifdef MAC_OSX
+      case typeFileURL:
+#endif
+       {
+#ifdef MAC_OSX
+         CFStringRef str;
+         CFURLRef url = NULL;
+         CFDataRef data = NULL;
+
+         str = CFStringCreateWithBytes (NULL, data_ptr, data_size,
+                                        kCFStringEncodingUTF8, false);
+         if (str)
+           {
+             url = CFURLCreateWithFileSystemPath (NULL, str,
+                                                  kCFURLPOSIXPathStyle, false);
+             CFRelease (str);
+           }
+         if (url)
+           {
+             data = CFURLCreateData (NULL, url, kCFStringEncodingUTF8, true);
+             CFRelease (url);
+           }
+         if (data)
+           {
+             err = AECoercePtr (typeFileURL, CFDataGetBytePtr (data),
+                                CFDataGetLength (data), to_type, result);
+             CFRelease (data);
+           }
+       else
+         err = memFullErr;
+#else
+         FSSpec fs;
+         char *buf;
+
+         buf = xmalloc (data_size + 1);
+         if (buf)
+           {
+             memcpy (buf, data_ptr, data_size);
+             buf[data_size] = '\0';
+             err = posix_pathname_to_fsspec (buf, &fs);
+             xfree (buf);
+           }
+         else
+           err = memFullErr;
+         if (err == noErr)
+           err = AECoercePtr (typeFSS, &fs, sizeof (FSSpec),
+                              to_type, result);
+#endif
+       }
+       break;
+
+      case TYPE_FILE_NAME:
+      case typeWildCard:
+       err = AECreateDesc (TYPE_FILE_NAME, data_ptr, data_size, result);
+       break;
+
+      default:
+       err = errAECoercionFail;
+       break;
+      }
+  else if (to_type == TYPE_FILE_NAME)
+    /* Coercion to undecoded file name.  */
+    switch (type_code)
+      {
+      case typeAlias:
+      case typeFSS:
+      case typeFSRef:
+#ifdef MAC_OSX
+      case typeFileURL:
+#endif
+       {
+         AEDesc desc;
+#ifdef MAC_OSX
+         Size size;
+         char *buf;
+         CFURLRef url = NULL;
+         CFStringRef str = NULL;
+         CFDataRef data = NULL;
+
+         err = AECoercePtr (type_code, data_ptr, data_size,
+                            typeFileURL, &desc);
+         if (err == noErr)
+           {
+             size = AEGetDescDataSize (&desc);
+             buf = xmalloc (size);
+             if (buf)
+               {
+                 err = AEGetDescData (&desc, buf, size);
+                 if (err == noErr)
+                   url = CFURLCreateWithBytes (NULL, buf, size,
+                                               kCFStringEncodingUTF8, NULL);
+                 xfree (buf);
+               }
+             AEDisposeDesc (&desc);
+           }
+         if (url)
+           {
+             str = CFURLCopyFileSystemPath (url, kCFURLPOSIXPathStyle);
+             CFRelease (url);
+           }
+         if (str)
+           {
+             data =
+               CFStringCreateExternalRepresentation (NULL, str,
+                                                     kCFStringEncodingUTF8,
+                                                     '\0');
+             CFRelease (str);
+           }
+         if (data)
+           {
+             err = AECreateDesc (TYPE_FILE_NAME, CFDataGetBytePtr (data),
+                                 CFDataGetLength (data), result);
+             CFRelease (data);
+           }
+         else
+           err = memFullErr;
+#else
+         FSSpec fs;
+         char file_name[MAXPATHLEN];
+
+         err = AECoercePtr (type_code, data_ptr, data_size,
+                            typeFSS, &desc);
+         if (err == noErr)
+           {
+#if TARGET_API_MAC_CARBON
+             err = AEGetDescData (&desc, &fs, sizeof (FSSpec));
+#else
+             fs = *(FSSpec *)(*(desc.dataHandle));
+#endif
+             if (err == noErr)
+               err = fsspec_to_posix_pathname (&fs, file_name,
+                                               sizeof (file_name) - 1);
+             if (err == noErr)
+               err = AECreateDesc (TYPE_FILE_NAME, file_name,
+                                   strlen (file_name), result);
+             AEDisposeDesc (&desc);
+           }
+#endif
+       }
+       break;
+
+      default:
+       err = errAECoercionFail;
+       break;
+      }
+  else
+    abort ();
+
+  if (err != noErr)
+    return errAECoercionFail;
+  return noErr;
+}
+
+static pascal OSErr
+mac_coerce_file_name_desc (from_desc, to_type, handler_refcon, result)
+     const AEDesc *from_desc;
+     DescType to_type;
+     long handler_refcon;
+     AEDesc *result;
+{
+  OSErr err = noErr;
+  DescType from_type = from_desc->descriptorType;
+
+  if (from_type == TYPE_FILE_NAME)
+    {
+      if (to_type != TYPE_FILE_NAME && to_type != typeWildCard
+         && to_type != typeAlias && to_type != typeFSS
+         && to_type != typeFSRef
+#ifdef MAC_OSX
+         && to_type != typeFileURL
+#endif
+         )
+       return errAECoercionFail;
+    }
+  else if (to_type == TYPE_FILE_NAME)
+    {
+      if (from_type != typeAlias && from_type != typeFSS
+         && from_type != typeFSRef
+#ifdef MAC_OSX
+         && from_type != typeFileURL
+#endif
+         )
+       return errAECoercionFail;
+    }
+  else
+    abort ();
+
+  if (from_type == to_type || to_type == typeWildCard)
+    err = AEDuplicateDesc (from_desc, result);
+  else
+    {
+      char *data_ptr;
+      Size data_size;
+
+#if TARGET_API_MAC_CARBON
+      data_size = AEGetDescDataSize (from_desc);
+#else
+      data_size = GetHandleSize (from_desc->dataHandle);
+#endif
+      data_ptr = xmalloc (data_size);
+      if (data_ptr)
+       {
+#if TARGET_API_MAC_CARBON
+         err = AEGetDescData (from_desc, data_ptr, data_size);
+#else
+         memcpy (data_ptr, *(from_desc->dataHandle), data_size);
+#endif
+         if (err == noErr)
+           err = mac_coerce_file_name_ptr (from_type, data_ptr,
+                                           data_size, to_type,
+                                           handler_refcon, result);
+         xfree (data_ptr);
+       }
+      else
+       err = memFullErr;
+    }
+
+  if (err != noErr)
+    return errAECoercionFail;
+  return noErr;
+}
+
+OSErr
+init_coercion_handler ()
+{
+  OSErr err;
+
+  static AECoercePtrUPP coerce_file_name_ptrUPP = NULL;
+  static AECoerceDescUPP coerce_file_name_descUPP = NULL;
+
+  if (coerce_file_name_ptrUPP == NULL)
+    {
+      coerce_file_name_ptrUPP = NewAECoercePtrUPP (mac_coerce_file_name_ptr);
+      coerce_file_name_descUPP = NewAECoerceDescUPP 
(mac_coerce_file_name_desc);
+    }
+
+  err = AEInstallCoercionHandler (TYPE_FILE_NAME, typeWildCard,
+                                 (AECoercionHandlerUPP)
+                                 coerce_file_name_ptrUPP, 0, false, false);
+  if (err == noErr)
+    err = AEInstallCoercionHandler (typeWildCard, TYPE_FILE_NAME,
+                                   (AECoercionHandlerUPP)
+                                   coerce_file_name_ptrUPP, 0, false, false);
+  if (err == noErr)
+    err = AEInstallCoercionHandler (TYPE_FILE_NAME, typeWildCard,
+                                   coerce_file_name_descUPP, 0, true, false);
+  if (err == noErr)
+    err = AEInstallCoercionHandler (typeWildCard, TYPE_FILE_NAME,
+                                   coerce_file_name_descUPP, 0, true, false);
+  return err;
+}
+
 #if TARGET_API_MAC_CARBON
 OSErr
 create_apple_event_from_event_ref (event, num_params, names, types, result)
@@ -2602,7 +2875,7 @@
 }
 
 
-OSErr
+static OSErr
 posix_pathname_to_fsspec (ufn, fs)
      const char *ufn;
      FSSpec *fs;
@@ -2618,7 +2891,7 @@
     }
 }
 
-OSErr
+static OSErr
 fsspec_to_posix_pathname (fs, ufn, ufnbuflen)
      const FSSpec *fs;
      char *ufn;
@@ -4072,92 +4345,21 @@
 
   CHECK_STRING (src_data);
   if (EQ (src_type, Qundecoded_file_name))
-    {
-#ifdef MAC_OSX
-      src_desc_type = typeFileURL;
-#else
-      src_desc_type = typeFSS;
-#endif
-    }
+    src_desc_type = TYPE_FILE_NAME;
   else
     src_desc_type = mac_get_code_from_arg (src_type, 0);
 
   if (EQ (dst_type, Qundecoded_file_name))
-    {
-#ifdef MAC_OSX
-    dst_desc_type = typeFSRef;
-#else
-    dst_desc_type = typeFSS;
-#endif
-    }
+    dst_desc_type = TYPE_FILE_NAME;
   else
     dst_desc_type = mac_get_code_from_arg (dst_type, 0);
 
   BLOCK_INPUT;
-  if (EQ (src_type, Qundecoded_file_name))
-    {
-#ifdef MAC_OSX
-      CFStringRef str;
-      CFURLRef url = NULL;
-      CFDataRef data = NULL;
-
-      str = cfstring_create_with_utf8_cstring (SDATA (src_data));
-      if (str)
-       {
-         url = CFURLCreateWithFileSystemPath (NULL, str,
-                                              kCFURLPOSIXPathStyle, false);
-         CFRelease (str);
-       }
-      if (url)
-       {
-         data = CFURLCreateData (NULL, url, kCFStringEncodingUTF8, true);
-         CFRelease (url);
-       }
-      if (data)
-       {
-         err = AECoercePtr (src_desc_type, CFDataGetBytePtr (data),
-                            CFDataGetLength (data),
-                            dst_desc_type, &dst_desc);
-         CFRelease (data);
-       }
-      else
-       err = memFullErr;
-#else
-      err = posix_pathname_to_fsspec (SDATA (src_data), &fs);
-      if (err == noErr)
-       AECoercePtr (src_desc_type, &fs, sizeof (FSSpec),
+  err = AECoercePtr (src_desc_type, SDATA (src_data), SBYTES (src_data),
                     dst_desc_type, &dst_desc);
-#endif
-    }
-  else
-    err = AECoercePtr (src_desc_type, SDATA (src_data), SBYTES (src_data),
-                      dst_desc_type, &dst_desc);
-
   if (err == noErr)
     {
-      if (EQ (dst_type, Qundecoded_file_name))
-       {
-         char file_name[MAXPATHLEN];
-
-#ifdef MAC_OSX
-         err = AEGetDescData (&dst_desc, &fref, sizeof (FSRef));
-         if (err == noErr)
-           err = FSRefMakePath (&fref, file_name, sizeof (file_name));
-#else
-#if TARGET_API_MAC_CARBON
-         err = AEGetDescData (&dst_desc, &fs, sizeof (FSSpec));
-#else
-         memcpy (&fs, *(dst_desc.dataHandle), sizeof (FSSpec));
-#endif
-         if (err == noErr)
-           err = fsspec_to_posix_pathname (&fs, file_name,
-                                           sizeof (file_name) - 1);
-#endif
-         if (err == noErr)
-           result = make_unibyte_string (file_name, strlen (file_name));
-       }
-      else
-       result = Fcdr (mac_aedesc_to_lisp (&dst_desc));
+      result = Fcdr (mac_aedesc_to_lisp (&dst_desc));
       AEDisposeDesc (&dst_desc);
     }
   UNBLOCK_INPUT;