Start work on Mir sessions

10 files changed, 102 insertions, 9 deletions

diff --git a/liblightdm-gobject/Makefile.am b/liblightdm-gobject/Makefile.am
index 449276ca..bd1b45a7 100644
--- a/liblightdm-gobject/Makefile.am
+++ b/liblightdm-gobject/Makefile.am
@@ -6,7 +6,8 @@ liblightdm_gobject_1_la_CFLAGS = $(LIBLIGHTDM_GOBJECT_CFLAGS) \
 	$(WARN_CFLAGS) \
 	-DCONFIG_DIR=\"$(sysconfdir)/lightdm\" \
 	-DXSESSIONS_DIR=\"$(datadir)/xsessions\" \
-	-DREMOTE_SESSIONS_DIR=\"$(pkgdatadir)/remote-sessions\"
+	-DREMOTE_SESSIONS_DIR=\"$(pkgdatadir)/remote-sessions\" \
+	-DMIR_SESSIONS_DIR=\"$(datadir)/mir-sessions\"
 
 mainheader_HEADERS = lightdm.h
 mainheaderdir=$(includedir)/lightdm-gobject-1
diff --git a/liblightdm-gobject/greeter.c b/liblightdm-gobject/greeter.c
index 1db708f2..ad401d46 100644
--- a/liblightdm-gobject/greeter.c
+++ b/liblightdm-gobject/greeter.c
@@ -81,7 +81,8 @@ typedef enum
     GREETER_MESSAGE_START_SESSION,
     GREETER_MESSAGE_CANCEL_AUTHENTICATION,
     GREETER_MESSAGE_SET_LANGUAGE,
-    GREETER_MESSAGE_AUTHENTICATE_REMOTE
+    GREETER_MESSAGE_AUTHENTICATE_REMOTE,
+    GREETER_MESSAGE_START_MIR_SESSION
 } GreeterMessage;
 
 /* Messages from the server to the greeter */
@@ -1106,6 +1107,58 @@ lightdm_greeter_start_session_sync (LightDMGreeter *greeter, const gchar *sessio
     return return_code == 0;
 }
 
+/**
+ * lightdm_greeter_start_mir_session_sync:
+ * @greeter: A #LightDMGreeter
+ * @session: (allow-none): The Mir session to log into or #NULL to use the default.
+ * @error: return location for a #GError, or %NULL
+ *
+ * Start a session for the authenticated user.
+ *
+ * Return value: TRUE if the session was started.
+ **/
+gboolean
+lightdm_greeter_start_mir_session_sync (LightDMGreeter *greeter, const gchar *session, GError **error)
+{
+    LightDMGreeterPrivate *priv;
+    guint8 message[MAX_MESSAGE_LENGTH];
+    guint8 *response;
+    gsize response_length, offset = 0;
+    guint32 id, return_code = 1;
+
+    g_return_val_if_fail (LIGHTDM_IS_GREETER (greeter), FALSE);
+
+    priv = GET_PRIVATE (greeter);
+
+    g_return_val_if_fail (priv->connected, FALSE);
+    g_return_val_if_fail (priv->is_authenticated, FALSE);
+
+    if (session)
+        g_debug ("Starting Mir session %s", session);
+    else
+        g_debug ("Starting default Mir session");
+
+    write_header (message, MAX_MESSAGE_LENGTH, GREETER_MESSAGE_START_MIR_SESSION, string_length (session), &offset);
+    write_string (message, MAX_MESSAGE_LENGTH, session, &offset);
+    write_message (greeter, message, offset);
+
+    response = read_message (greeter, &response_length, TRUE);
+    if (!response)
+        return FALSE;
+
+    offset = 0;
+    id = read_int (response, response_length, &offset);
+    read_int (response, response_length, &offset);
+    if (id == SERVER_MESSAGE_SESSION_RESULT)
+        return_code = read_int (response, response_length, &offset);
+    else
+        g_warning ("Expected SESSION_RESULT message, got %d", id);
+
+    g_free (response);
+
+    return return_code == 0;
+}
+
 static void
 lightdm_greeter_init (LightDMGreeter *greeter)
 {
diff --git a/liblightdm-gobject/lightdm/greeter.h b/liblightdm-gobject/lightdm/greeter.h
index af409dee..30e7f33b 100644
--- a/liblightdm-gobject/lightdm/greeter.h
+++ b/liblightdm-gobject/lightdm/greeter.h
@@ -121,6 +121,8 @@ void lightdm_greeter_set_language (LightDMGreeter *greeter, const gchar *languag
 
 gboolean lightdm_greeter_start_session_sync (LightDMGreeter *greeter, const gchar *session, GError **error);
 
+gboolean lightdm_greeter_start_mir_session_sync (LightDMGreeter *greeter, const gchar *session, GError **error);
+
 G_END_DECLS
 
 #endif /* LIGHTDM_GREETER_H_ */
diff --git a/liblightdm-gobject/lightdm/session.h b/liblightdm-gobject/lightdm/session.h
index 4123888c..426000cb 100644
--- a/liblightdm-gobject/lightdm/session.h
+++ b/liblightdm-gobject/lightdm/session.h
@@ -46,6 +46,8 @@ GList *lightdm_get_sessions (void);
 
 GList *lightdm_get_remote_sessions (void);
 
+GList *lightdm_get_mir_sessions (void);
+
 const gchar *lightdm_session_get_key (LightDMSession *session);
 
 const gchar *lightdm_session_get_name (LightDMSession *session);
diff --git a/liblightdm-gobject/session.c b/liblightdm-gobject/session.c
index f1ccf6cc..36aec934 100644
--- a/liblightdm-gobject/session.c
+++ b/liblightdm-gobject/session.c
@@ -34,6 +34,7 @@ G_DEFINE_TYPE (LightDMSession, lightdm_session, G_TYPE_OBJECT);
 static gboolean have_sessions = FALSE;
 static GList *local_sessions = NULL;
 static GList *remote_sessions = NULL;
+static GList *mir_sessions = NULL;
 
 static gint 
 compare_session (gconstpointer a, gconstpointer b)
@@ -173,6 +174,7 @@ update_sessions (void)
     gchar *config_path = NULL;
     gchar *xsessions_dir;
     gchar *remote_sessions_dir;
+    gchar *mir_sessions_dir;
     gboolean result;
     GError *error = NULL;
 
@@ -181,6 +183,7 @@ update_sessions (void)
 
     xsessions_dir = g_strdup (XSESSIONS_DIR);
     remote_sessions_dir = g_strdup (REMOTE_SESSIONS_DIR);
+    mir_sessions_dir = g_strdup (MIR_SESSIONS_DIR);
 
     /* Use session directory from configuration */
     /* FIXME: This should be sent in the greeter connection */
@@ -207,12 +210,20 @@ update_sessions (void)
             g_free (remote_sessions_dir);
             remote_sessions_dir = value;
         }
+
+        value = g_key_file_get_string (config_key_file, "LightDM", "mir-sessions-directory", NULL);
+        if (value)
+        {
+            g_free (mir_sessions_dir);
+            mir_sessions_dir = value;
+        }
     }
     g_key_file_free (config_key_file);
     g_free (config_path);
 
     local_sessions = load_sessions (xsessions_dir);
     remote_sessions = load_sessions (remote_sessions_dir);
+    mir_sessions = load_sessions (mir_sessions_dir);
 
     g_free (xsessions_dir);
     g_free (remote_sessions_dir);
@@ -249,6 +260,20 @@ lightdm_get_remote_sessions (void)
 }
 
 /**
+ * lightdm_get_mir_sessions:
+ *
+ * Get the available Mir sessions.
+ *
+ * Return value: (element-type LightDMSession) (transfer none): A list of #LightDMSession
+ **/
+GList *
+lightdm_get_mir_sessions (void)
+{
+    update_sessions ();
+    return mir_sessions;
+}
+
+/**
  * lightdm_session_get_key:
  * @session: A #LightDMSession
  * 
diff --git a/liblightdm-qt/QLightDM/sessionsmodel.h b/liblightdm-qt/QLightDM/sessionsmodel.h
index 77c81fb2..33a67655 100644
--- a/liblightdm-qt/QLightDM/sessionsmodel.h
+++ b/liblightdm-qt/QLightDM/sessionsmodel.h
@@ -32,7 +32,8 @@ namespace QLightDM {
 
         enum SessionType {
             LocalSessions,
-            RemoteSessions
+            RemoteSessions,
+            MirSessions
         };
 
         explicit SessionsModel(QObject *parent = 0); /** Deprecated. Loads local sessions*/
diff --git a/liblightdm-qt/sessionsmodel.cpp b/liblightdm-qt/sessionsmodel.cpp
index 9ad335f9..93295f38 100644
--- a/liblightdm-qt/sessionsmodel.cpp
+++ b/liblightdm-qt/sessionsmodel.cpp
@@ -58,6 +58,9 @@ void SessionsModelPrivate::loadSessions(SessionsModel::SessionType sessionType)
     case SessionsModel::RemoteSessions:
         ldmSessions = lightdm_get_remote_sessions();
         break;
+    case SessionsModel::MirSessions:
+        ldmSessions = lightdm_get_mir_sessions();
+        break;
     case SessionsModel::LocalSessions:
         /* Fall through*/
     default:
diff --git a/src/greeter.c b/src/greeter.c
index 9601c093..05921d23 100644
--- a/src/greeter.c
+++ b/src/greeter.c
@@ -84,7 +84,8 @@ typedef enum
     GREETER_MESSAGE_START_SESSION,
     GREETER_MESSAGE_CANCEL_AUTHENTICATION,
     GREETER_MESSAGE_SET_LANGUAGE,
-    GREETER_MESSAGE_AUTHENTICATE_REMOTE
+    GREETER_MESSAGE_AUTHENTICATE_REMOTE,
+    GREETER_MESSAGE_START_MIR_SESSION
 } GreeterMessage;
 
 /* Messages from the server to the greeter */
@@ -547,12 +548,11 @@ handle_cancel_authentication (Greeter *greeter)
 }
 
 static void
-handle_start_session (Greeter *greeter, const gchar *session)
+handle_start_session (Greeter *greeter, SessionType session_type, const gchar *session)
 {
     gboolean result;
     guint8 message[MAX_MESSAGE_LENGTH];
     gsize offset = 0;
-    SessionType session_type = SESSION_TYPE_LOCAL;
 
     if (strcmp (session, "") == 0)
         session = NULL;
@@ -778,7 +778,12 @@ read_cb (GIOChannel *source, GIOCondition condition, gpointer data)
         break;
     case GREETER_MESSAGE_START_SESSION:
         session_name = read_string (greeter, &offset);
-        handle_start_session (greeter, session_name);
+        handle_start_session (greeter, SESSION_TYPE_LOCAL, session_name);
+        g_free (session_name);
+        break;
+    case GREETER_MESSAGE_START_MIR_SESSION:
+        session_name = read_string (greeter, &offset);
+        handle_start_session (greeter, SESSION_TYPE_MIR, session_name);
         g_free (session_name);
         break;
     case GREETER_MESSAGE_SET_LANGUAGE:
diff --git a/src/session.h b/src/session.h
index c3523b1e..13f9962c 100644
--- a/src/session.h
+++ b/src/session.h
@@ -46,7 +46,8 @@ typedef struct
 typedef enum
 {
     SESSION_TYPE_LOCAL,
-    SESSION_TYPE_REMOTE
+    SESSION_TYPE_REMOTE,
+    SESSION_TYPE_MIR
 } SessionType;
 
 #define XDG_SESSION_CLASS_USER        "user"
diff --git a/tests/src/test-session.c b/tests/src/test-session.c
index 7d321cee..ad1dfebe 100644
--- a/tests/src/test-session.c
+++ b/tests/src/test-session.c
@@ -162,7 +162,7 @@ main (int argc, char **argv)
     int fd, open_max;
 
     display = getenv ("DISPLAY");
-    if (display == NULL)
+    if (display == NULL)      
         session_id = g_strdup ("SESSION-?");
     else if (display[0] == ':')
         session_id = g_strdup_printf ("SESSION-X-%s", display + 1);