From 95a8a458420dd2ebdbd6f7c03bd58c649985933e Mon Sep 17 00:00:00 2001
From: retoor <retoor@molodetz.nl>
Date: Mon, 17 Feb 2025 19:03:40 +0100
Subject: [PATCH] Scroll infinite.

---
 src/snek/templates/web.html | 35 +++++++++++++++++++++++++----------
 1 file changed, 25 insertions(+), 10 deletions(-)

diff --git a/src/snek/templates/web.html b/src/snek/templates/web.html
index cf7b7cb..7740191 100644
--- a/src/snek/templates/web.html
+++ b/src/snek/templates/web.html
@@ -55,26 +55,41 @@
             rect.right <= (window.innerWidth || document.documentElement.clientWidth)
         );
     }
+    
 
     const messagesContainer = document.querySelector(".chat-messages");
+    function isScrolledPastHalf() {
+        let scrollTop = messagesContainer.scrollTop;
+        let scrollableHeight = messagesContainer.scrollHeight - messagesContainer.clientHeight;
+
+        if (scrollTop < scrollableHeight / 2) {
+            return false;
+        }
+        return true;
+    }
+    let isLoadingExtra = false;
     async function loadExtra() {
     
-        const offsetMessage = messagesContainer.querySelector(".chat-messages :nth-child(10)");
-        if(!offsetMessage){
-            return
-        }
+        //const offsetMessage = messagesContainer.querySelector(".chat-messages :nth-child(10)");
+        //if(!offsetMessage){
+        //    return
+        //}
         const firstMessage = messagesContainer.querySelector(".message:first-child");
-        if(offsetMessage.dataset.seen){
+        //if(offsetMessage.dataset.seen){
+        //    return 
+        //}
+        if(isLoadingExtra){
             return 
         }
-
-        if(isElementVisible(offsetMessage)){
-            offsetMessage.dataset.seen = true
+        if(isScrolledPastHalf()){
+            isLoadingExtra = true
+        
+        }
+            
             const messages = await app.rpc.getMessages(channelUid, 1, offsetMessage.dataset.created_at);
             messages.forEach((message) => {
                 firstMessage.insertAdjacentHTML("beforebegin", message.html);
-            })
-        }
+        isLoadingExtra = false;
     }
     messagesContainer.addEventListener("scroll",()=>{
         loadExtra()