From 473cbf122853db399fefa0efd21fdbb8f21637eb Mon Sep 17 00:00:00 2001
From: ccd0 <admin@containerchan.org>
Date: Sat, 13 Jul 2019 10:58:18 -0700
Subject: [PATCH] Fix excessive thread watcher checking when switching tabs if
 cookies disabled.

---
 src/Monitoring/ThreadWatcher.coffee | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/Monitoring/ThreadWatcher.coffee b/src/Monitoring/ThreadWatcher.coffee
index 53cdbe12f..8a5e01e53 100644
--- a/src/Monitoring/ThreadWatcher.coffee
+++ b/src/Monitoring/ThreadWatcher.coffee
@@ -227,7 +227,7 @@ ThreadWatcher =
     interval = if Conf['Show Page'] or (ThreadWatcher.unreadEnabled and Conf['Show Unread Count']) then 5 * $.MINUTE else 2 * $.HOUR
     now = Date.now()
     unless now - interval < (db.data.lastChecked or 0) <= now or d.hidden or not d.hasFocus()
-      ThreadWatcher.fetchAllStatus()
+      ThreadWatcher.fetchAllStatus interval
     ThreadWatcher.timeout = setTimeout ThreadWatcher.fetchAuto, interval
 
   buttonFetchAll: ->
@@ -236,7 +236,7 @@ ThreadWatcher =
     else
       ThreadWatcher.fetchAllStatus()
 
-  fetchAllStatus: ->
+  fetchAllStatus: (interval=0) ->
     ThreadWatcher.status.textContent = '...'
     $.addClass ThreadWatcher.refreshButton, 'fa-spin'
     ThreadWatcher.syncing = true
@@ -245,6 +245,7 @@ ThreadWatcher =
     for dbi in dbs
       dbi.forceSync ->
         if (++n) is dbs.length
+          return if 0 <= Date.now() - (ThreadWatcher.db.data.lastChecked or 0) < interval # checked in another tab
           return if !ThreadWatcher.syncing # aborted
           delete ThreadWatcher.syncing
           # XXX On vichan boards, last_modified field of threads.json does not account for sage posts.