repo/chat: src/chat.js comparison

comparison src/chat.js @ 33:e2b7f6393dab

add online

author	Franklin Schmidt <fschmidt@gmail.com>
date	Sun, 10 Nov 2024 19:57:14 -0700
parents	0f40501b0b56
children	62d04ca486dd

comparison

equal deleted inserted replaced

-:0f40501b0b56
+:e2b7f6393dab
 		}
 	}
 }
 window.onfocus = function() {
+	// console.log('onfocus');
 	document.title = title;
 	hasUnseen = false;
 };
 let urlRegex = /(^|\s)(https?:\/\/\S+)/g;
 		pulldown.scrollIntoViewIfNeeded(false);
 	}
 }
 setInterval(function(){
+	showOnline();
 	ajax(`heartbeat.js?last_update=${lastUpdate}`);
-}, 60000 );
+}, 10000 );
 function resync(updated) {
 	lastUpdate = updated;
 	currentChatId = null;
 	document.querySelector('div[posts]').innerHTML = '';
 let sound = new Audio('/images/notify.mp3');
 function notify() {
 	sound.play();
 }
+let online = {};
+function setOnline(userId) {
+	online[userId] = Date.now();
+}
+function showOnline() {
+	let old = Date.now() - 20000;
+	for( let id of Object.keys(online) ) {
+		if( online[id] < old )
+			delete online[id];
+	}
+	let a = [];
+	for( let id in online ) {
+		a.push( `span[online="${id}"]` );
+	}
+	let style = document.querySelector('style[online]');
+	if( a.length === 0 ) {
+		style.innerHTML = '';
+	} else {
+		style.innerHTML = `
+			${a.join(', ')} {
+				background-color: green;
+			}
+`		;
+	}
+}