Add an IsSessionRunning method

This gives clients who missed the SessionRunning signal a chance
to find out if the session has entered the running phase, and
lets us avoid race conditions.

Based on gnome-session commit: b59d358796343f81b31d4a398998faedd20b8f4b
From: Matthias Clasen <[email protected]>
Gnome bug: https://bugzilla.gnome.org/show_bug.cgi?id=636229

3 files changed, 30 insertions, 1 deletions

diff --git a/mate-session/gsm-manager.c b/mate-session/gsm-manager.c
index e814323..2a4d140 100644
--- a/mate-session/gsm-manager.c
+++ b/mate-session/gsm-manager.c
@@ -3942,3 +3942,14 @@ gsm_manager_add_autostart_apps_from_dir (GsmManager *manager,
 
         return TRUE;
 }
+
+gboolean
+gsm_manager_is_session_running (GsmManager *manager,
+                                gboolean *running,
+                                GError **error)
+{
+        g_return_val_if_fail (GSM_IS_MANAGER (manager), FALSE);
+
+        *running = (manager->priv->phase == GSM_MANAGER_PHASE_RUNNING);
+        return TRUE;
+}
diff --git a/mate-session/gsm-manager.h b/mate-session/gsm-manager.h
index 035d11b..4422f59 100644
--- a/mate-session/gsm-manager.h
+++ b/mate-session/gsm-manager.h
@@ -190,6 +190,10 @@ gboolean            gsm_manager_is_autostart_condition_handled (GsmManager     *
 gboolean            gsm_manager_set_phase                      (GsmManager     *manager,
                                                                 GsmManagerPhase phase);
 
+gboolean            gsm_manager_is_session_running             (GsmManager *manager,
+                                                                gboolean *running,
+                                                                GError **error);
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/mate-session/org.mate.SessionManager.xml b/mate-session/org.mate.SessionManager.xml
index 1569cf7..9b6f452 100644
--- a/mate-session/org.mate.SessionManager.xml
+++ b/mate-session/org.mate.SessionManager.xml
@@ -316,7 +316,21 @@
           </doc:description>
         </doc:doc>
     </method>
-    
+
+    <method name="IsSessionRunning">
+      <arg name="running" direction="out" type="b">
+        <doc:doc>
+          <doc:summary>True if the session has entered the Running phase, false otherwise</doc:summary>
+        </doc:doc>
+      </arg>
+     <doc:doc>
+       <doc:description>
+         <doc:para>Allows the caller to determine whether the session manager
+         has entered the Running phase, in case the client missed the
+         SessionRunning signal.</doc:para>
+       </doc:description>
+     </doc:doc>
+    </method>
     <!-- Signals -->
 
     <signal name="ClientAdded">