filefilter: Drop custom filters

These don't work with native file choosers.

docs/reference/gtk/gtk4-sections.txt

@@ -1414,14 +1414,12 @@ GtkFileChooserButtonPrivate
 <FILE>gtkfilefilter</FILE>
 GtkFileFilter
 GtkFileFilterFlags
-GtkFileFilterFunc
 gtk_file_filter_new
 gtk_file_filter_set_name
 gtk_file_filter_get_name
 gtk_file_filter_add_mime_type
 gtk_file_filter_add_pattern
 gtk_file_filter_add_pixbuf_formats
-gtk_file_filter_add_custom
 gtk_file_filter_get_needed
 gtk_file_filter_filter
 

gtk/gtkfilefilter.c

@@ -85,8 +85,7 @@ typedef struct _FilterRule FilterRule;
 typedef enum {
   FILTER_RULE_PATTERN,
   FILTER_RULE_MIME_TYPE,
-  FILTER_RULE_PIXBUF_FORMATS,
+  FILTER_RULE_PIXBUF_FORMATS
-  FILTER_RULE_CUSTOM
 } FilterRuleType;
 
 struct _GtkFileFilterClass
@@ -113,11 +112,6 @@ struct _FilterRule
     gchar *pattern;
     gchar *mime_type;
     GSList *pixbuf_formats;
-    struct {
-      GtkFileFilterFunc func;
-      gpointer data;
-      GDestroyNotify notify;
-    } custom;
   } u;
 };
 
@@ -205,10 +199,6 @@ filter_rule_free (FilterRule *rule)
     case FILTER_RULE_PATTERN:
       g_free (rule->u.pattern);
       break;
-    case FILTER_RULE_CUSTOM:
-      if (rule->u.custom.notify)
-	rule->u.custom.notify (rule->u.custom.data);
-      break;
     case FILTER_RULE_PIXBUF_FORMATS:
       g_slist_free (rule->u.pixbuf_formats);
       break;
@@ -580,45 +570,6 @@ gtk_file_filter_add_pixbuf_formats (GtkFileFilter *filter)
   file_filter_add_rule (filter, rule);
 }
 
-
-/**
- * gtk_file_filter_add_custom:
- * @filter: a #GtkFileFilter
- * @needed: bitfield of flags indicating the information that the custom
- *          filter function needs.
- * @func: callback function; if the function returns %TRUE, then
- *   the file will be displayed.
- * @data: data to pass to @func
- * @notify: function to call to free @data when it is no longer needed.
- * 
- * Adds rule to a filter that allows files based on a custom callback
- * function. The bitfield @needed which is passed in provides information
- * about what sorts of information that the filter function needs;
- * this allows GTK+ to avoid retrieving expensive information when
- * it isn’t needed by the filter.
- **/
-void
-gtk_file_filter_add_custom (GtkFileFilter         *filter,
-			    GtkFileFilterFlags     needed,
-			    GtkFileFilterFunc      func,
-			    gpointer               data,
-			    GDestroyNotify         notify)
-{
-  FilterRule *rule;
-  
-  g_return_if_fail (GTK_IS_FILE_FILTER (filter));
-  g_return_if_fail (func != NULL);
-
-  rule = g_slice_new (FilterRule);
-  rule->type = FILTER_RULE_CUSTOM;
-  rule->needed = needed;
-  rule->u.custom.func = func;
-  rule->u.custom.data = data;
-  rule->u.custom.notify = notify;
-
-  file_filter_add_rule (filter, rule);
-}
-
 /**
  * gtk_file_filter_get_needed:
  * @filter: a #GtkFileFilter
@@ -654,10 +605,6 @@ NSArray * _gtk_file_filter_get_as_pattern_nsstrings (GtkFileFilter *filter)
 
       switch (rule->type)
 	{
-	case FILTER_RULE_CUSTOM:
-	  [array release];
-          return NULL;
-	  break;
 	case FILTER_RULE_MIME_TYPE:
 	  {
 	    // convert mime-types to UTI
@@ -731,7 +678,6 @@ _gtk_file_filter_get_as_patterns (GtkFileFilter      *filter)
 
       switch (rule->type)
 	{
-	case FILTER_RULE_CUSTOM:
 	case FILTER_RULE_MIME_TYPE:
           g_ptr_array_free (array, TRUE);
           return NULL;
@@ -853,10 +799,6 @@ gtk_file_filter_filter (GtkFileFilter *filter,
               }
           }
           break;
-        case FILTER_RULE_CUSTOM:
-          if (rule->u.custom.func (info, rule->u.custom.data))
-            return TRUE;
-          break;
 
         default:
           break;
@@ -910,7 +852,6 @@ gtk_file_filter_to_gvariant (GtkFileFilter *filter)
               }
           }
           break;
-        case FILTER_RULE_CUSTOM:
         default:
           break;
         }

gtk/gtkfilefilter.h

@@ -52,19 +52,6 @@ typedef enum {
   GTK_FILE_FILTER_MIME_TYPE    = 1 << 3
 } GtkFileFilterFlags;
 
-/**
- * GtkFileFilterFunc:
- * @info: a #GFileInfo
- * @data: (closure): user data passed to gtk_file_filter_add_custom()
- *
- * The type of function that is used with custom filters, see
- * gtk_file_filter_add_custom().
- *
- * Returns: %TRUE if the file should be displayed
- */
-typedef gboolean (*GtkFileFilterFunc) (GFileInfo *info,
-                                       gpointer  data);
-
 GDK_AVAILABLE_IN_ALL
 GType gtk_file_filter_get_type (void) G_GNUC_CONST;
 
@@ -84,12 +71,6 @@ void gtk_file_filter_add_pattern        (GtkFileFilter      *filter,
 					 const gchar        *pattern);
 GDK_AVAILABLE_IN_ALL
 void gtk_file_filter_add_pixbuf_formats (GtkFileFilter      *filter);
-GDK_AVAILABLE_IN_ALL
-void gtk_file_filter_add_custom         (GtkFileFilter      *filter,
-					 GtkFileFilterFlags  needed,
-					 GtkFileFilterFunc   func,
-					 gpointer            data,
-					 GDestroyNotify      notify);
 
 GDK_AVAILABLE_IN_ALL
 GtkFileFilterFlags gtk_file_filter_get_needed (GtkFileFilter           *filter);

tests/testfilechooser.c

@@ -118,21 +118,6 @@ response_cb (GtkDialog *dialog,
   g_main_context_wakeup (NULL);
 }
 
-static gboolean
-no_backup_files_filter (GFileInfo *info,
-                        gpointer   data)
-{
-  const char *display_name;
-  gsize len;
-
-  display_name = g_file_info_get_display_name (info);
-  len = strlen (display_name);
-  if (len > 0 && display_name[len - 1] == '~')
-    return 0;
-  else
-    return 1;
-}
-
 static void
 filter_changed (GtkFileChooserDialog *dialog,
 		gpointer              data)
@@ -399,14 +384,6 @@ main (int argc, char **argv)
   gtk_file_chooser_set_filter (GTK_FILE_CHOOSER (dialog), filter);
   g_object_unref (filter);
 
-  filter = gtk_file_filter_new ();
-  gtk_file_filter_set_name (filter, "No backup files");
-  gtk_file_filter_add_custom (filter, GTK_FILE_FILTER_DISPLAY_NAME,
-			      no_backup_files_filter, NULL, NULL);
-  gtk_file_filter_add_mime_type (filter, "image/png");
-  gtk_file_chooser_add_filter (GTK_FILE_CHOOSER (dialog), filter);
-  g_object_unref (filter);
-
   filter = gtk_file_filter_new ();
   gtk_file_filter_set_name (filter, "Starts with D");
   gtk_file_filter_add_pattern (filter, "D*");