From f531d4b029b2e5040ffa20869f391fb131c2334a Mon Sep 17 00:00:00 2001
From: Sassan Haradji <me@sassanh.com>
Date: Tue, 19 Dec 2023 10:25:39 +0400
Subject: [PATCH] feat: cancel clock event when kivy app stops

---
 CHANGELOG.md                 | 4 ++++
 headless_kivy_pi/__init__.py | 5 ++++-
 pyproject.toml               | 2 +-
 3 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index ed221f1..d596907 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Changelog
 
+## Version 0.5.7
+
+- feat: cancel clock event when kivy app stops
+
 ## Version 0.5.6
 
 - fix: ignore data hash and render a single frame after resume
diff --git a/headless_kivy_pi/__init__.py b/headless_kivy_pi/__init__.py
index 97f4ee8..dcac967 100644
--- a/headless_kivy_pi/__init__.py
+++ b/headless_kivy_pi/__init__.py
@@ -24,7 +24,7 @@
 
 import kivy
 import numpy as np
-from kivy.app import ObjectProperty, Widget
+from kivy.app import App, ObjectProperty, Widget
 from kivy.clock import Clock
 from kivy.config import Config
 from kivy.graphics import (
@@ -305,6 +305,9 @@ def __init__(self: HeadlessWidget, **kwargs: Any) -> None:  # noqa: ANN401
             True,
         )
         self.render_on_display_event()
+        App.get_running_app().bind(
+            on_stop=lambda _: self.render_on_display_event.cancel(),
+        )
 
     def add_widget(
         self: HeadlessWidget,
diff --git a/pyproject.toml b/pyproject.toml
index 1e040d3..2a8dac8 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "headless-kivy-pi"
-version = "0.5.6"
+version = "0.5.7"
 description = "Headless renderer for Kivy framework on Raspberry Pi"
 authors = ["Sassan Haradji <sassanh@gmail.com>"]
 license = "Apache-2.0"