New function nautilus_ensure_unique_file_name

2005-01-14  Alexander Larsson  <alexl@redhat.com>

	* libnautilus-private/nautilus-file-utilities.[ch]:
	New function nautilus_ensure_unique_file_name

	* libnautilus-private/nautilus-link.[ch]:
	* libnautilus-private/nautilus-link-desktop-file.[ch]:
	Uniquify name for nautilus_link_local_create if requested.

	* src/file-manager/fm-directory-view.c:
	(fm_directory_view_handle_url_drop):
	Uniquify desktop link name

	Patch from Jorn Baayen <jbaayen@gnome.org>

6 files changed, 77 insertions, 12 deletions

diff --git a/libnautilus-private/nautilus-file-utilities.c b/libnautilus-private/nautilus-file-utilities.c
index ae21d95e4..4fbd2a440 100644
--- a/libnautilus-private/nautilus-file-utilities.c
+++ b/libnautilus-private/nautilus-file-utilities.c
@@ -366,6 +366,55 @@ nautilus_get_data_file_path (const char *partial_path)
 	return NULL;
 }
 
+static gboolean
+test_uri_exists (const char *path)
+{
+	GnomeVFSURI *uri;
+	gboolean exists;
+
+	uri = gnome_vfs_uri_new (path);
+	exists = gnome_vfs_uri_exists (uri);
+	gnome_vfs_uri_unref (uri);
+
+	return exists;
+}
+
+char *
+nautilus_ensure_unique_file_name (const char *directory_uri,
+				  const char *base_name,
+				  const char *extension)
+{
+	char *path, *escaped_name;
+	gboolean exists;
+	int copy;
+
+	escaped_name = gnome_vfs_escape_string (base_name);
+
+	path = g_strdup_printf ("%s/%s%s",
+				directory_uri,
+				escaped_name,
+				extension);
+	exists = test_uri_exists (path);
+
+	copy = 1;
+	while (exists) {
+		g_free (path);
+		path = g_strdup_printf ("%s/%s-%d%s",
+					directory_uri,
+					escaped_name,
+					copy,
+					extension);
+
+		exists = test_uri_exists (path);
+
+		copy++;
+	}
+
+	g_free (escaped_name);
+
+	return path;
+}
+
 char *
 nautilus_unique_temporary_file_name (void)
 {
diff --git a/libnautilus-private/nautilus-file-utilities.h b/libnautilus-private/nautilus-file-utilities.h
index 5b71e461d..7e3a6ed82 100644
--- a/libnautilus-private/nautilus-file-utilities.h
+++ b/libnautilus-private/nautilus-file-utilities.h
@@ -66,7 +66,13 @@ char *   nautilus_pixmap_file                        (const char *partial_path);
 /* Locate a file in either the uers directory or the datadir. */
 char *   nautilus_get_data_file_path                 (const char *partial_path);
 
-/* Return an allocated file name that is guranteed to be unique. */
+/* Return an allocated file name that is guranteed to be unique, but
+ * tries to make the name readable to users.
+ * This isn't race-free, so don't use for security-related things
+ */
+char *   nautilus_ensure_unique_file_name            (const char *directory_uri,
+						      const char *base_name,
+			                              const char *extension);
 char *   nautilus_unique_temporary_file_name         (void);
 char *   nautilus_find_file_in_gnome_path            (char       *file);
 GList *  nautilus_find_all_files_in_gnome_path       (char       *file);
diff --git a/libnautilus-private/nautilus-link-desktop-file.c b/libnautilus-private/nautilus-link-desktop-file.c
index aa2bec0ff..a5d49e9f2 100644
--- a/libnautilus-private/nautilus-link-desktop-file.c
+++ b/libnautilus-private/nautilus-link-desktop-file.c
@@ -79,12 +79,13 @@ slurp_key_string (const char *uri,
 
 gboolean
 nautilus_link_desktop_file_local_create (const char        *directory_uri,
-					 const char        *file_name,
+					 const char        *base_name,
 					 const char        *display_name,
 					 const char        *image,
 					 const char        *target_uri,
 					 const GdkPoint    *point,
-					 int                screen)
+					 int                screen,
+					 gboolean           unique_filename)
 {
 	char *uri, *contents, *escaped_name;
 	GnomeDesktopItem *desktop_item;
@@ -92,13 +93,18 @@ nautilus_link_desktop_file_local_create (const char        *directory_uri,
 	NautilusFileChangesQueuePosition item;
 
 	g_return_val_if_fail (directory_uri != NULL, FALSE);
-	g_return_val_if_fail (file_name != NULL, FALSE);
+	g_return_val_if_fail (base_name != NULL, FALSE);
 	g_return_val_if_fail (display_name != NULL, FALSE);
 	g_return_val_if_fail (target_uri != NULL, FALSE);
 
-	escaped_name = gnome_vfs_escape_string (file_name);
-	uri = g_strdup_printf ("%s/%s", directory_uri, escaped_name);
-	g_free (escaped_name);
+	if (unique_filename) {
+		uri = nautilus_ensure_unique_file_name (directory_uri,
+							base_name, ".desktop");
+	} else {
+		escaped_name = gnome_vfs_escape_string (base_name);
+		uri = g_strdup_printf ("%s/%s.desktop", directory_uri, escaped_name);
+		g_free (escaped_name);
+	}
 
 	contents = g_strdup_printf ("[Desktop Entry]\n"
 				    "Encoding=UTF-8\n"
diff --git a/libnautilus-private/nautilus-link-desktop-file.h b/libnautilus-private/nautilus-link-desktop-file.h
index 9e189414a..a0ab05700 100644
--- a/libnautilus-private/nautilus-link-desktop-file.h
+++ b/libnautilus-private/nautilus-link-desktop-file.h
@@ -28,12 +28,13 @@
 #include <libnautilus-private/nautilus-link.h>
 
 gboolean         nautilus_link_desktop_file_local_create                      (const char        *directory_uri,
-									       const char        *file_name,
+									       const char        *base_name,
 									       const char        *display_name,
 									       const char        *image,
 									       const char        *target_uri,
 									       const GdkPoint    *point,
-									       int                screen);
+									       int                screen,
+									       gboolean           unique_filename);
 gboolean         nautilus_link_desktop_file_local_set_text                    (const char        *uri,
 									       const char        *text);
 char *           nautilus_link_desktop_file_local_get_text                    (const char        *uri);
diff --git a/libnautilus-private/nautilus-link.c b/libnautilus-private/nautilus-link.c
index 199536b4e..521c40499 100644
--- a/libnautilus-private/nautilus-link.c
+++ b/libnautilus-private/nautilus-link.c
@@ -110,13 +110,15 @@ nautilus_link_local_create (const char *directory_uri,
 			    const char *image,
 			    const char *target_uri,
 			    const GdkPoint *point,
-			    int screen)
+			    int screen,
+			    gboolean unique_filename)
 {
 	return nautilus_link_desktop_file_local_create (directory_uri,
 							file_name,
 							display_name, image,
 							target_uri, 
-							point, screen);
+							point, screen,
+							unique_filename);
 }
 
 /* returns additional text to display under the name, NULL if none */
diff --git a/libnautilus-private/nautilus-link.h b/libnautilus-private/nautilus-link.h
index 71741e1bb..c825ce3b9 100644
--- a/libnautilus-private/nautilus-link.h
+++ b/libnautilus-private/nautilus-link.h
@@ -39,7 +39,8 @@ gboolean         nautilus_link_local_create                      (const char
 								  const char       *image,
 								  const char       *target_uri,
 								  const GdkPoint   *point,
-								  int               screen);
+								  int               screen,
+								  gboolean          unique_filename);
 
 /* Returns additional text to display under the name, NULL if
  * none. Despite the fact that it takes a URI parameter, works only if