1 files changed, 5 insertions, 0 deletions
diff --git a/include/cru/platform/gui/UiApplication.hpp b/include/cru/platform/gui/UiApplication.hpp
index ba85020a..5a5b0b13 100644
--- a/include/cru/platform/gui/UiApplication.hpp
+++ b/include/cru/platform/gui/UiApplication.hpp
@@ -79,6 +79,9 @@ class TimerAutoCanceler {
   }
 
   TimerAutoCanceler& operator=(TimerAutoCanceler&& other) {
+    if (&other == this) {
+      return *this;
+    }
     Reset(other.id_);
     other.id_ = 0;
     return *this;
@@ -101,6 +104,8 @@ class TimerAutoCanceler {
     id_ = id;
   }
 
+  explicit operator bool() const { return id_; }
+
  private:
   long long id_;
 };