WIP

src/main.ts

@@ -38,6 +38,21 @@ class Post {
   }
 }
 
+window.addEventListener('scroll', () => {
+  // Total height of the document
+  const totalPageHeight = document.body.scrollHeight;
+
+  // Current scroll position
+  const scrollPoint = window.scrollY + window.innerHeight;
+
+  // Check if scrolled to bottom
+  if (scrollPoint >= totalPageHeight) {
+    console.log('Scrolled to the bottom!');
+    console.log(scrollPoint, totalPageHeight);
+    // You can perform your action here
+  }
+});
+
 
 function initMarkdown() {
   const renderer = new marked.Renderer();
@@ -252,6 +267,8 @@ function connectWebsocket(userID: string) {
   websocket.onopen = function (evt) {
     log("Websocket: CONNECTED");
     websocket.send(`{"messageType":"connect", "id": "${userID}"}`);
+
+    let websocketPingInterval = window.setInterval(()=>{websocket.send(`{"messageType":"ping", "id": "${userID}"}`);}, 5000)
   };
 
   websocket.onclose = function (evt) {
@@ -269,15 +286,24 @@ function connectWebsocket(userID: string) {
   return websocket;
 }
 
-function setFont(fontName: string) {
+function setFont(fontName: string, fontSize: string) {
+
+  let content = document.getElementById('content');
+
+  if (!content) {
+    return;
+  }
+
+  content.style.fontFamily = fontName;
+  content.style.fontSize = fontSize;
 
-  document.body.style.fontFamily = fontName;
   let textArea = document.getElementById('textarea_post');
   if (!textArea) {
     return;
   }
 
   textArea.style.fontFamily = fontName;
+  textArea.style.fontSize = fontSize;
 }
 
 function initOffline() {
@@ -295,8 +321,8 @@ function initButtons(userID: string, posts: Post[]) {
   let font1Button = document.getElementById("button_font1") as HTMLButtonElement;
   let font2Button = document.getElementById("button_font2") as HTMLButtonElement;
 
-  font1Button.addEventListener('click', () => { setFont('Bookerly'); });
-  font2Button.addEventListener('click', () => { setFont('Virgil') });
+  font1Button.addEventListener('click', () => { setFont('Bookerly', '16px') });
+  font2Button.addEventListener('click', () => { setFont('Virgil', '24px') });
 
 
   let postButton = document.getElementById("button_post") as HTMLButtonElement;
@@ -349,7 +375,7 @@ async function main() {
     log(`Persisted storage granted: ${isPersisted}`);
   }
 
-  log(`Persisted: ${(await navigator.storage.persisted()).toString()}`);
+  log(`Persisted: ${(await navigator?.storage?.persisted())?.toString()}`);
 
   initMarkdown();