add vue_realtime_listener function

1 files changed, 16 insertions, 0 deletions

diff --git a/app/assets/javascripts/vue_realtime_listener/index.js.es6 b/app/assets/javascripts/vue_realtime_listener/index.js.es6
new file mode 100644
index 00000000000..72404c6f015
--- /dev/null
+++ b/app/assets/javascripts/vue_realtime_listener/index.js.es6
@@ -0,0 +1,16 @@
+(() => {
+  gl.VueRealtimeListener = (removeIntervals, startIntervals) => {
+    const removeAll = () => {
+      removeIntervals();
+      window.removeEventListener('beforeunload', removeIntervals);
+      window.removeEventListener('focus', startIntervals);
+      window.removeEventListener('blur', removeIntervals);
+      document.removeEventListener('page:fetch', removeAll);
+    };
+
+    window.addEventListener('beforeunload', removeIntervals);
+    window.addEventListener('focus', startIntervals);
+    window.addEventListener('blur', removeIntervals);
+    document.addEventListener('page:fetch', removeAll);
+  };
+})(window.gl || (window.gl = {}));