From 9f5c0de078d18594adf7223920eba1308b747338 Mon Sep 17 00:00:00 2001
From: Jeremy Ruston <jeremy@jermolene.com>
Date: Fri, 6 Dec 2019 17:27:28 +0000
Subject: [PATCH] Clear outstanding alerts when synchronisation is restored

---
 core/modules/syncer.js       |  6 +++++-
 core/modules/utils/logger.js | 14 ++++++++++++++
 2 files changed, 19 insertions(+), 1 deletion(-)

diff --git a/core/modules/syncer.js b/core/modules/syncer.js
index 640798f0235..736e4cebc99 100644
--- a/core/modules/syncer.js
+++ b/core/modules/syncer.js
@@ -190,7 +190,11 @@ Update the document body with the class "tc-dirty" if the wiki has unsaved/unsyn
 */
 Syncer.prototype.updateDirtyStatus = function() {
 	if($tw.browser && !this.disableUI) {
-		$tw.utils.toggleClass(document.body,"tc-dirty",this.isDirty());
+		var dirty = this.isDirty();
+		$tw.utils.toggleClass(document.body,"tc-dirty",dirty);
+		if(!dirty) {
+			this.logger.clearAlerts();
+		}
 	}
 };
 
diff --git a/core/modules/utils/logger.js b/core/modules/utils/logger.js
index 01e850aae89..5100772aff5 100644
--- a/core/modules/utils/logger.js
+++ b/core/modules/utils/logger.js
@@ -25,6 +25,7 @@ function Logger(componentName,options) {
 	this.save = "save" in options ? options.save : true;
 	this.saveLimit = options.saveLimit || 100 * 1024;
 	this.buffer = "";
+	this.alertCount = 0;
 }
 
 /*
@@ -91,6 +92,7 @@ Logger.prototype.alert = function(/* args */) {
 					component: this.componentName
 				};
 				existingCount = 0;
+				this.alertCount += 1;
 			}
 			alertFields.modified = new Date();
 			if(++existingCount > 1) {
@@ -108,6 +110,18 @@ Logger.prototype.alert = function(/* args */) {
 	}
 };
 
+/*
+Clear outstanding alerts
+*/
+Logger.prototype.clearAlerts = function() {
+	if(this.alertCount > 0) {
+		$tw.utils.each($tw.wiki.getTiddlersWithTag(ALERT_TAG),function(title) {
+			$tw.wiki.deleteTiddler(title);
+		});
+		this.alertCount = 0;
+	}
+};
+
 exports.Logger = Logger;
 
 })();