[gnome-disk-utility] lvm2: Implement various GduDrive vfuncs related to activation

[David Zeuthen <davidz src gnome org>]

commit 66edc57614e6a2923e11de3aa9daff686bfcdf79
Author: David Zeuthen <davidz redhat com>
Date:   Thu Feb 18 11:55:02 2010 -0500

    lvm2: Implement various GduDrive vfuncs related to activation

 src/gdu/gdu-linux-lvm2-volume-group.c |   15 ++++++++++-----
 1 files changed, 10 insertions(+), 5 deletions(-)
---
diff --git a/src/gdu/gdu-linux-lvm2-volume-group.c b/src/gdu/gdu-linux-lvm2-volume-group.c
index fe830a0..f7a9225 100644
--- a/src/gdu/gdu-linux-lvm2-volume-group.c
+++ b/src/gdu/gdu-linux-lvm2-volume-group.c
@@ -521,32 +521,37 @@ _gdu_linux_lvm2_volume_group_rewrite_enclosing_presentable (GduLinuxLvm2VolumeGr
 }
 
 /* ---------------------------------------------------------------------------------------------------- */
-
 /* GduDrive virtual method overrides */
 
 static gboolean
 gdu_linux_lvm2_volume_group_is_active (GduDrive *drive)
 {
-        return TRUE;
+        GduLinuxLvm2VolumeGroup *vg = GDU_LINUX_LVM2_VOLUME_GROUP (drive);
+        return gdu_linux_lvm2_volume_group_get_state (vg) != GDU_LINUX_LVM2_VOLUME_GROUP_STATE_NOT_RUNNING;
 }
 
 static gboolean
 gdu_linux_lvm2_volume_group_is_activatable (GduDrive *drive)
 {
-        return FALSE;
+        return TRUE;
 }
 
 static gboolean
 gdu_linux_lvm2_volume_group_can_deactivate (GduDrive *drive)
 {
-        return FALSE;
+        GduLinuxLvm2VolumeGroup *vg = GDU_LINUX_LVM2_VOLUME_GROUP (drive);
+        return gdu_linux_lvm2_volume_group_get_state (vg) != GDU_LINUX_LVM2_VOLUME_GROUP_STATE_NOT_RUNNING;
 }
 
 static gboolean
 gdu_linux_lvm2_volume_group_can_activate (GduDrive *drive,
                                           gboolean *out_degraded)
 {
-        return FALSE;
+        GduLinuxLvm2VolumeGroup *vg = GDU_LINUX_LVM2_VOLUME_GROUP (drive);
+        /* TODO: actually compute out_degraded and also return FALSE in case we can't even start in degraded mode */
+        if (out_degraded != NULL)
+                *out_degraded = FALSE;
+        return gdu_linux_lvm2_volume_group_get_state (vg) != GDU_LINUX_LVM2_VOLUME_GROUP_STATE_RUNNING;
 }
 
 static gboolean