From c608468b7d6dad0a007ce1031724737b02fbdd55 Mon Sep 17 00:00:00 2001 From: David Gay Date: Wed, 23 Jun 2021 20:20:21 -0400 Subject: Fix results and chat divs sometimes not scrolling due to large output --- app/javascript/channels/chat_room_channel.js | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-) (limited to 'app/javascript/channels') diff --git a/app/javascript/channels/chat_room_channel.js b/app/javascript/channels/chat_room_channel.js index af29953..514742f 100644 --- a/app/javascript/channels/chat_room_channel.js +++ b/app/javascript/channels/chat_room_channel.js @@ -10,14 +10,19 @@ consumer.subscriptions.create("ChatRoomChannel", { }, received(data) { + // If scrolled to the bottom or near the bottom, then smooth scroll to the bottom. + var shouldScroll = false; + var chatOutputElement = document.getElementById("chat_output"); + if ((chatOutputElement.scrollTop + 100) >= (chatOutputElement.scrollHeight - chatOutputElement.offsetHeight)) { + shouldScroll = true; + } + // Called when there's incoming data on the websocket for this channel var node = document.createElement("P"); node.innerHTML = data.html; - var chatOutputElement = document.getElementById("chat_output"); chatOutputElement.appendChild(node); - // If scrolled to the bottom or near the bottom, then smooth scroll to the bottom. - if ((chatOutputElement.scrollTop + 100) >= (chatOutputElement.scrollHeight - chatOutputElement.offsetHeight)) { + if (shouldScroll) { chatOutputElement.scrollTo({ top: chatOutputElement.scrollHeight, left: 0, behavior: 'smooth' }); -- cgit v1.2.3