[gnome-session] Add an automount-inhibit flag

[Adel Gadllah <agadllah src gnome org>]

commit 70725a0c337e2be114631f6f77821c0aba3f0e74
Author: Hans de Goede <hdegoede redhat com>
Date:   Fri Jun 22 08:40:59 2012 +0200

    Add an automount-inhibit flag
    
    When connecting to virtual machines with usb-device redirection, such as
    Spice enabled vms, automount may get in the way. Specifically if auto-usbredir
    is enabled in the vm-viewer, then the usbredir code and the automount code
    race for who gets to the device first.
    
    If the automount code wins the race this is a problem, since usbredir causes
    a device-disconnect (iow the usb mass storage driver sees an unplug), so in
    the end usbredir always wins, and we end up with a non clean potentially
    corrupt filesystem. Also see:
    https://bugzilla.redhat.com/show_bug.cgi?id=812972
    
    There for the need exists to be able to inhibit gnome-shell's automounting,
    since all other inhibits run through gnome-session, it seems consistent to
    store the inhibit flag for automounting in gnome-session too. This has the
    added advantage that gnome-session already has all the necessary logic to
    automatically uninhibit if a client goes away.
    
    Another reason to do this through gnome-session is that all other inhibit
    flags are accessible through GtkApplication which relies on gnome-session,
    so storing this in gnome-session allows to add it to GtkApplication too.
    
    Note that gnome-session does not do anything with the flag, other then
    tracking it. The reason to still modify gnome-session is to reserve and
    document the flag.
    
    Signed-off-by: Hans de Goede <hdegoede redhat com>
    
    https://bugzilla.gnome.org/show_bug.cgi?id=678595

 gnome-session/gsm-inhibitor.h              |    3 ++-
 gnome-session/org.gnome.SessionManager.xml |    4 ++++
 2 files changed, 6 insertions(+), 1 deletions(-)
---
diff --git a/gnome-session/gsm-inhibitor.h b/gnome-session/gsm-inhibitor.h
index 2ef158d..f160046 100644
--- a/gnome-session/gsm-inhibitor.h
+++ b/gnome-session/gsm-inhibitor.h
@@ -53,7 +53,8 @@ typedef enum {
         GSM_INHIBITOR_FLAG_LOGOUT      = 1 << 0,
         GSM_INHIBITOR_FLAG_SWITCH_USER = 1 << 1,
         GSM_INHIBITOR_FLAG_SUSPEND     = 1 << 2,
-        GSM_INHIBITOR_FLAG_IDLE        = 1 << 3
+        GSM_INHIBITOR_FLAG_IDLE        = 1 << 3,
+        GSM_INHIBITOR_FLAG_AUTOMOUNT   = 1 << 4
 } GsmInhibitorFlag;
 
 typedef enum
diff --git a/gnome-session/org.gnome.SessionManager.xml b/gnome-session/org.gnome.SessionManager.xml
index eaf1ef5..8311ce3 100644
--- a/gnome-session/org.gnome.SessionManager.xml
+++ b/gnome-session/org.gnome.SessionManager.xml
@@ -146,6 +146,10 @@
                 <doc:term>8</doc:term>
                 <doc:definition>Inhibit the session being marked as idle</doc:definition>
               </doc:item>
+              <doc:item>
+                <doc:term>16</doc:term>
+                <doc:definition>Inhibit auto-mounting removable media for the session</doc:definition>
+              </doc:item>
             </doc:list>
             Values for flags may be bitwise or'ed together.
           </doc:para>