calendar-server: Launch default calendar app when clicked on notification

Rather than just disappearing the notification when the user clicks on it,
open the default calendar app.

src/calendar-server/gnome-shell-calendar-server.c

@@ -1090,6 +1090,18 @@ app_dismiss_reminder_cb (GSimpleAction *action,
   reminder_watcher_dismiss_by_id (app->reminder_watcher, g_variant_get_string (parameter, NULL));
 }
 
+static void
+app_open_in_app_cb (GSimpleAction *action,
+                    GVariant *parameter,
+                    gpointer user_data)
+{
+  App *app = _global_app;
+
+  g_return_if_fail (app != NULL);
+
+  reminder_watcher_open_in_app_by_id (app->reminder_watcher, g_variant_get_string (parameter, NULL));
+}
+
 int
 main (int    argc,
       char **argv)
@@ -1101,7 +1113,8 @@ main (int    argc,
   };
   const GActionEntry action_entries[] = {
     { "snooze-reminder", app_snooze_reminder_cb, "s" },
-    { "dismiss-reminder", app_dismiss_reminder_cb, "s" }
+    { "dismiss-reminder", app_dismiss_reminder_cb, "s" },
+    { "open-in-app", app_open_in_app_cb, "s" }
   };
   g_autoptr (GApplication) application = NULL;
   g_autoptr (GError) error = NULL;

src/calendar-server/reminder-watcher.c

@@ -234,6 +234,7 @@ reminder_watcher_notify_display (ReminderWatcher *rw,
     }
 #endif
 
+  g_notification_set_default_action_and_target (notification, "app.open-in-app", "s", notif_id);
   g_notification_add_button_with_target (notification, _("Snooze"), "app.snooze-reminder", "s", notif_id);
   g_notification_add_button_with_target (notification, _("Dismiss"), "app.dismiss-reminder", "s", notif_id);
 
@@ -813,3 +814,41 @@ reminder_watcher_snooze_by_id (EReminderWatcher *reminder_watcher,
       print_debug ("Snooze: Cannot find reminder '%s'", id);
     }
 }
+
+void
+reminder_watcher_open_in_app_by_id (EReminderWatcher *reminder_watcher,
+                                    const gchar *id)
+{
+  GAppInfo *app_info;
+  GError *local_error = NULL;
+
+  app_info = g_app_info_get_default_for_type ("text/calendar", FALSE);
+  if (app_info == NULL)
+    {
+      GList *recommended;
+
+      print_debug ("OpenInApp: No default application for 'text/calendar' found");
+
+      recommended = g_app_info_get_recommended_for_type ("text/calendar");
+      if (recommended)
+        {
+          /* pick the last used, when there's no default app */
+          app_info = g_object_ref (recommended->data);
+
+          g_list_free_full (recommended, g_object_unref);
+        }
+       else
+        {
+          print_debug ("OpenInApp: No recommended application for 'text/calendar' found");
+          return;
+        }
+    }
+
+  if (g_app_info_launch_uris (app_info, NULL, NULL, &local_error))
+    print_debug ("OpenInApp: Launched '%s'", g_app_info_get_executable (app_info));
+   else
+    print_debug ("OpenInApp: Failed to launch '%s': %s", g_app_info_get_executable (app_info), local_error ? local_error->message : "Unknown error");
+
+  g_object_unref (app_info);
+  g_clear_error (&local_error);
+}

src/calendar-server/reminder-watcher.h

@@ -63,7 +63,9 @@ void              reminder_watcher_dismiss_by_id(EReminderWatcher *reminder_watc
                                                  const gchar *id);
 void              reminder_watcher_snooze_by_id (EReminderWatcher *reminder_watcher,
                                                  const gchar *id);
-
+void              reminder_watcher_open_in_app_by_id
+                                                (EReminderWatcher *reminder_watcher,
+                                                 const gchar *id);
 G_END_DECLS
 
 #endif /* REMINDER_WATCHER_H */