From 7dfdbae812306875bac2445ca4ee505b406e3be1 Mon Sep 17 00:00:00 2001
From: Jeremy Ruston <jeremy@jermolene.com>
Date: Thu, 29 Aug 2024 17:25:30 +0100
Subject: [PATCH] Keyboard widget should not crash if the keyboard manager has
 not been initialised

A user reported a problem with using the keyboard widget within a startup action.
---
 core/modules/widgets/keyboard.js | 18 ++++++++++--------
 1 file changed, 10 insertions(+), 8 deletions(-)

diff --git a/core/modules/widgets/keyboard.js b/core/modules/widgets/keyboard.js
index ce3162f51..9515f5a3b 100644
--- a/core/modules/widgets/keyboard.js
+++ b/core/modules/widgets/keyboard.js
@@ -96,13 +96,15 @@ KeyboardWidget.prototype.execute = function() {
 	this.param = this.getAttribute("param","");
 	this.key = this.getAttribute("key","");
 	this.tag = this.getAttribute("tag","");
-	this.keyInfoArray = $tw.keyboardManager.parseKeyDescriptors(this.key);
-	if(this.key.substr(0,2) === "((" && this.key.substr(-2,2) === "))") {
-		this.shortcutTiddlers = [];
-		var name = this.key.substring(2,this.key.length -2);
-		$tw.utils.each($tw.keyboardManager.lookupNames,function(platformDescriptor) {
-			self.shortcutTiddlers.push("$:/config/" + platformDescriptor + "/" + name);
-		});
+	if($tw.keyboardManager) {
+		this.keyInfoArray = $tw.keyboardManager.parseKeyDescriptors(this.key);
+		if(this.key.substr(0,2) === "((" && this.key.substr(-2,2) === "))") {
+			this.shortcutTiddlers = [];
+			var name = this.key.substring(2,this.key.length -2);
+			$tw.utils.each($tw.keyboardManager.lookupNames,function(platformDescriptor) {
+				self.shortcutTiddlers.push("$:/config/" + platformDescriptor + "/" + name);
+			});
+		}	
 	}
 	// Make child widgets
 	this.makeChildWidgets();
@@ -126,7 +128,7 @@ KeyboardWidget.prototype.refresh = function(changedTiddlers) {
 		this.assignDomNodeClasses();
 	}
 	// Update the keyInfoArray if one of its shortcut-config-tiddlers has changed
-	if(this.shortcutTiddlers && $tw.utils.hopArray(changedTiddlers,this.shortcutTiddlers)) {
+	if(this.shortcutTiddlers && $tw.utils.hopArray(changedTiddlers,this.shortcutTiddlers) && $tw.keyboardManager) {
 		this.keyInfoArray = $tw.keyboardManager.parseKeyDescriptors(this.key);
 	}
 	return this.refreshChildren(changedTiddlers);