[gnome-disk-utility/gnome-3-26] No format option for extended partitions

[Kai Lüke <kailueke src gnome org>]

commit bed5849336b46a843a265134314fe80c8994fe1c
Author: Kai Lüke <kailueke riseup net>
Date:   Sat Oct 14 12:21:29 2017 +0900

    No format option for extended partitions
    
    Formatting extended partitions is not allowed,
    and results in an error message. They have to be
    deleted and recreated as primary partitions.
    
    Hide the format action for partitions which are
    only containers for other partitions,
    i.e. extended partitions.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=787231

 src/disks/gduwindow.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)
---
diff --git a/src/disks/gduwindow.c b/src/disks/gduwindow.c
index 7f80dd0..46f9333 100644
--- a/src/disks/gduwindow.c
+++ b/src/disks/gduwindow.c
@@ -2610,7 +2610,8 @@ update_device_page_for_block (GduWindow          *window,
           show_flags->volume_menu |= SHOW_FLAGS_VOLUME_MENU_RESTORE_VOLUME_IMAGE;
           if (udisks_block_get_hint_partitionable (block))
             show_flags->drive_menu |= SHOW_FLAGS_DRIVE_MENU_FORMAT_DISK;
-          show_flags->volume_menu |= SHOW_FLAGS_VOLUME_MENU_FORMAT_VOLUME;
+          if (partition == NULL || !udisks_partition_get_is_container (partition))
+            show_flags->volume_menu |= SHOW_FLAGS_VOLUME_MENU_FORMAT_VOLUME;
         }
     }