From 35269ef701767cfa6474984c73ae6d19e40e3d71 Mon Sep 17 00:00:00 2001
From: tdro <tdro@noreply.example.com>
Date: Fri, 2 Sep 2022 08:32:34 -0400
Subject: static/js/pager: Delay intersection observer from scroll event once

Replace instead of append
---
 static/js/pager.ts | 16 ++++++++++++++--
 1 file changed, 14 insertions(+), 2 deletions(-)

(limited to 'static')

diff --git a/static/js/pager.ts b/static/js/pager.ts
index 68708cc..7231161 100644
--- a/static/js/pager.ts
+++ b/static/js/pager.ts
@@ -56,7 +56,7 @@
   const fragmentClear = (entries) => {
     for (let entry = 0; entry < entries.length; entry++) {
       if (self.location.hash) {
-        self.history.pushState(null, "", url);
+        self.history.replaceState(null, "", url);
       }
     }
   };
@@ -78,7 +78,6 @@
 
   self.addEventListener("DOMContentLoaded", function () {
     scrollRestore(settings, url);
-    fragmentRelease(fragmentClear);
     self.addEventListener("click", function (event) {
       const up = document.getElementById("top");
       const back = document.getElementById("back");
@@ -86,7 +85,20 @@
     });
   });
 
+  let scrolls = 0;
+
+  let once = (action) => {
+    once = function () {};
+    action();
+  };
+
   self.addEventListener("scroll", function () {
     scrollTrack(settings, url);
+    if (scrolls > 3) {
+      once(function () {
+        fragmentRelease(fragmentClear);
+      });
+    }
+    scrolls++;
   });
 })();
-- 
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