From 0f8559f22af4e140ed7cd099ce36d37d2aeccc07 Mon Sep 17 00:00:00 2001
From: Midgard <midgard@zeus.ugent.be>
Date: Thu, 9 Jun 2022 15:14:40 +0200
Subject: [PATCH] Mark incoming messages in current channel as read

but only if tab is focused. When tab gets focus, mark channel as read.
---
 js/controller.js | 17 +++++++++++++++++
 js/main.js       |  9 +++++++++
 js/pubsub.js     |  1 +
 3 files changed, 27 insertions(+)

diff --git a/js/controller.js b/js/controller.js
index 5047a1d..da82b88 100644
--- a/js/controller.js
+++ b/js/controller.js
@@ -207,3 +207,20 @@ function checkKeyPress(event) {
 	}
 	return false;
 }
+
+pubsub.subscribe("MESSAGES_NEW", post => {
+	if (!window.hasFocus) {
+		return;
+	}
+
+	const curChan = currentChannel();
+	if (post.endpoint === curChan.endpoint && post.channel_id === curChan.channel_id) {
+		mm_client.getOrCreate(post.endpoint).markChannelRead(post.channel_id);
+	}
+});
+
+pubsub.subscribe("WINDOW_FOCUSED", () => {
+	const curChan = currentChannel();
+	if (!curChan.channel_id) return;
+	mm_client.getOrCreate(curChan.endpoint).markChannelRead(curChan.channel_id);
+});
diff --git a/js/main.js b/js/main.js
index fa4adab..aa94dc6 100644
--- a/js/main.js
+++ b/js/main.js
@@ -21,3 +21,12 @@ localstorage_credentials.getServers()
 	.forEach(mm_client.getOrCreate);
 
 populateChannelList();
+
+window.hasFocus = true;
+window.addEventListener("focus", _ => {
+	window.hasFocus = true;
+	pubsub.publish("WINDOW_FOCUSED");
+});
+window.addEventListener("blur", _ => {
+	window.hasFocus = false;
+});
diff --git a/js/pubsub.js b/js/pubsub.js
index 0e5102d..79ae073 100644
--- a/js/pubsub.js
+++ b/js/pubsub.js
@@ -10,6 +10,7 @@ const topics = [
 	"CHANNEL_MEMBERS_NEW",
 	"CHANNEL_MEMBERS_REMOVED",
 	"CHANNEL_READ", // {endpoint, channel_id}
+	"WINDOW_FOCUSED",
 ];
 
 let subscribers = Object.create(null);