notification: Get the activation-token form ActionInvoked when using …

…portal

Since [1] the xdg-desktop-portal-gtk adds the activation-token to the
ActionInvoked signal. We can store it and let apps use it like the
activation-token we get from FDO.

[1] flatpak/xdg-desktop-portal-gtk#468

libnotify/notification.c

@@ -817,8 +817,29 @@ proxy_g_signal_cb (GDBusProxy *proxy,
                 const char *id;
                 const char *action;
                 GVariant *parameter;
+                int i;
 
                 g_variant_get (parameters, "(&s&s@av)", &id, &action, &parameter);
+
+                for (i = 0; i < g_variant_n_children (parameter); i++) {
+                    g_autoptr (GVariant) data = NULL;
+                    g_variant_get_child (parameter, i, "v", &data);
+
+                    if (g_variant_is_of_type (data, G_VARIANT_TYPE_VARDICT)) {
+                        const char *key = NULL;
+                        g_autoptr (GVariant) pdata = NULL;
+
+                        g_variant_get (data, "{&sv}", &key, &pdata);
+
+                        if (strcmp (key, "activation-token") == 0 &&
+                                g_variant_is_of_type (data, G_VARIANT_TYPE_STRING)) {
+                            g_free (notification->priv->activation_token);
+                            notification->priv->activation_token = g_variant_dup_string (pdata, NULL);
+                            break;
+                        }
+                    }
+                }
+
                 g_variant_unref (parameter);
 
                 notification_id = get_portal_notification_id (notification);