closes #1513

public/language/en_GB/modules.json

@@ -3,5 +3,6 @@
 	"chat.placeholder": "type chat message here, press enter to send",
 	"chat.send": "Send",
 	"chat.no_active": "You have no active chats.",
-	"chat.user_typing": "%1 is typing ..."
+	"chat.user_typing": "%1 is typing ...",
+	"chat.user_has_messaged_you": "%1 has messaged you."
 }

public/src/app.js

@@ -385,16 +385,20 @@ var socket,
 			if (!titleObj.titles[0]) {
 				titleObj.titles[0] = window.document.title;
 			}
-			titleObj.titles[1] = title;
+
+			translator.translate(title, function(translated) {
+				titleObj.titles[1] = translated;
 				if (titleObj.interval) {
 					clearInterval(titleObj.interval);
 				}
+
 				titleObj.interval = setInterval(function() {
 					var title = titleObj.titles[titleObj.titles.indexOf(window.document.title) ^ 1];
 					if (title) {
 						window.document.title = title;
 					}
 				}, 2000);
+			});
 		} else {
 			if (titleObj.interval) {
 				clearInterval(titleObj.interval);

public/src/modules/chat.js

@@ -72,13 +72,13 @@ define(['taskbar', 'string', 'sounds'], function(taskbar, S, sounds) {
 				}
 
 				if (!isSelf && (!modal.is(":visible") || !app.isFocused)) {
-					app.alternatingTitle(username + ' has messaged you');
+					app.alternatingTitle('[[modules:chat.user_has_messaged_you, ' + username + ']]');
 				}
 			} else {
 				module.createModal(username, data.withUid, function(modal) {
 					module.toggleNew(modal.attr('UUID'), true);
 					if (!isSelf) {
-						app.alternatingTitle(username + ' has messaged you');
+						app.alternatingTitle('[[modules:chat.user_has_messaged_you, ' + username + ']]');
 					}
 				});
 			}
@@ -91,6 +91,9 @@ define(['taskbar', 'string', 'sounds'], function(taskbar, S, sounds) {
 		socket.on('event:chats.userStartTyping', function(withUid) {
 			var modal = module.getModal(withUid);
 			var chatContent = modal.find('#chat-content');
+			if (!chatContent.length) {
+				return;
+			}
 			var atBottom = chatContent[0].scrollHeight - chatContent.scrollTop() === chatContent.innerHeight();
 
 			modal.find('.user-typing').removeClass('hide').appendTo(chatContent);