virt-viewer-app: Add a GError arg to create_session()

This is part of a small re-factoring that will have all connection
errors, when we won't be able to connect regardless of what changes on
the remote host, being treated by virt_viewer_app_initial_connect(),
avoiding weird behaviors as we have nowadays (like more than one error
dialog being shown or having the virt-viewer waiting forever for a guest
that will never show up).

Related: rhbz#1085216

4 files changed, 11 insertions, 13 deletions

diff --git a/src/remote-viewer.c b/src/remote-viewer.c
index 4110b1e..8a8bb9c 100644
--- a/src/remote-viewer.c
+++ b/src/remote-viewer.c
@@ -950,11 +950,9 @@ create_ovirt_session(VirtViewerApp *app, const char *uri, GError **err)
     virt_viewer_app_set_connect_info(app, NULL, ghost, gport, gtlsport,
                                      session_type, NULL, NULL, 0, NULL);
 
-    if (virt_viewer_app_create_session(app, session_type) < 0) {
-        g_set_error(&error, VIRT_VIEWER_ERROR, VIRT_VIEWER_ERROR_FAILED,
-                    _("Failed to create a session type %s"), session_type);
+    if (virt_viewer_app_create_session(app, session_type, &error) < 0)
         goto error;
-    }
+
 #ifdef HAVE_SPICE_GTK
     if (type == OVIRT_VM_DISPLAY_SPICE) {
         SpiceSession *session;
@@ -1223,7 +1221,7 @@ remote_viewer_start(VirtViewerApp *app, GError **err)
     g_signal_connect(app, "notify", G_CALLBACK(app_notified), self);
 
     if (priv->controller) {
-        if (virt_viewer_app_create_session(app, "spice") < 0) {
+        if (virt_viewer_app_create_session(app, "spice", &error) < 0) {
             virt_viewer_app_simple_message_dialog(app, _("Couldn't create a Spice session"));
             goto cleanup;
         }
@@ -1285,12 +1283,8 @@ retry_dialog:
         } else
 #endif
         {
-            if (virt_viewer_app_create_session(app, type) < 0) {
-                g_set_error(&error,
-                            VIRT_VIEWER_ERROR, VIRT_VIEWER_ERROR_FAILED,
-                            _("Couldn't create a session for this type: %s"), type);
+            if (virt_viewer_app_create_session(app, type, &error) < 0)
                 goto cleanup;
-            }
         }
 
         virt_viewer_session_set_file(virt_viewer_app_get_session(app), vvfile);
diff --git a/src/virt-viewer-app.c b/src/virt-viewer-app.c
index dd0361f..6b58cf6 100644
--- a/src/virt-viewer-app.c
+++ b/src/virt-viewer-app.c
@@ -1052,7 +1052,7 @@ static void notify_software_reader_cb(GObject    *gobject G_GNUC_UNUSED,
 }
 
 int
-virt_viewer_app_create_session(VirtViewerApp *self, const gchar *type)
+virt_viewer_app_create_session(VirtViewerApp *self, const gchar *type, GError **error)
 {
     g_return_val_if_fail(VIRT_VIEWER_IS_APP(self), -1);
     VirtViewerAppPrivate *priv = self->priv;
@@ -1076,6 +1076,10 @@ virt_viewer_app_create_session(VirtViewerApp *self, const gchar *type)
     } else
 #endif
     {
+        g_set_error(error,
+                    VIRT_VIEWER_ERROR, VIRT_VIEWER_ERROR_FAILED,
+                    _("Unsupported graphic type '%s'"), type);
+
         virt_viewer_app_trace(self, "Guest %s has unsupported %s display type",
                               priv->guest_name, type);
         virt_viewer_app_simple_message_dialog(self, _("Unknown graphic type for the guest %s"),
diff --git a/src/virt-viewer-app.h b/src/virt-viewer-app.h
index 1d7cf16..8c1268d 100644
--- a/src/virt-viewer-app.h
+++ b/src/virt-viewer-app.h
@@ -68,7 +68,7 @@ void virt_viewer_app_trace(VirtViewerApp *self, const char *fmt, ...);
 void virt_viewer_app_simple_message_dialog(VirtViewerApp *self, const char *fmt, ...);
 gboolean virt_viewer_app_is_active(VirtViewerApp *app);
 void virt_viewer_app_free_connect_info(VirtViewerApp *self);
-int virt_viewer_app_create_session(VirtViewerApp *self, const gchar *type);
+int virt_viewer_app_create_session(VirtViewerApp *self, const gchar *type, GError **error);
 gboolean virt_viewer_app_activate(VirtViewerApp *self, GError **error);
 gboolean virt_viewer_app_initial_connect(VirtViewerApp *self, GError **error);
 void virt_viewer_app_set_zoom_level(VirtViewerApp *self, gint zoom_level);
diff --git a/src/virt-viewer.c b/src/virt-viewer.c
index 7c73bc5..cba38e4 100644
--- a/src/virt-viewer.c
+++ b/src/virt-viewer.c
@@ -420,7 +420,7 @@ virt_viewer_extract_connect_info(VirtViewer *self,
         goto cleanup;
     }
 
-    if (virt_viewer_app_create_session(app, type) < 0)
+    if (virt_viewer_app_create_session(app, type, error) < 0)
         goto cleanup;
 
     xpath = g_strdup_printf("string(/domain/devices/graphics[@type='%s']/@port)", type);