feat: typing user list in chat

install/package.json

@@ -102,10 +102,10 @@
         "nodebb-plugin-ntfy": "1.5.0",
         "nodebb-plugin-spam-be-gone": "2.1.1",
         "nodebb-rewards-essentials": "0.2.3",
-        "nodebb-theme-harmony": "1.1.50",
+        "nodebb-theme-harmony": "1.1.51",
         "nodebb-theme-lavender": "7.1.3",
         "nodebb-theme-peace": "2.1.18",
-        "nodebb-theme-persona": "13.2.25",
+        "nodebb-theme-persona": "13.2.26",
         "nodebb-widget-essentials": "7.0.13",
         "nodemailer": "6.9.4",
         "nprogress": "0.2.0",

public/language/en-GB/modules.json

@@ -9,7 +9,10 @@
 	"chat.chat-with-usernames-and-x-others": "Chat with %1 & %2 others",
 	"chat.send": "Send",
 	"chat.no_active": "You have no active chats.",
-	"chat.user_typing": "%1 is typing ...",
+	"chat.user_typing_1": "<strong>%1</strong> is typing ...",
+	"chat.user_typing_2": "<strong>%1</strong> and <strong>%2</strong> are typing ...",
+	"chat.user_typing_3": "<strong>%1</strong>, <strong>%2</strong> and <strong>%3</strong> are typing ...",
+	"chat.user_typing_n": "<strong>%1</strong>, <strong>%2</strong> and <strong>%3</strong> others are typing ...",
 	"chat.user_has_messaged_you": "%1 has messaged you.",
 	"chat.replying-to": "Replying to %1",
 	"chat.see_all": "All chats",

public/src/client/chats.js

@@ -18,11 +18,12 @@ define('forum/chats', [
 	'chat',
 	'api',
 	'uploadHelpers',
+	'translator',
 ], function (
 	components, mousetrap, recentChats, create,
 	manage, messages, userList, messageSearch, pinnedMessages,
 	autocomplete, hooks, bootbox, alerts, chatModule, api,
-	uploadHelpers
+	uploadHelpers, translator
 ) {
 	const Chats = {
 		initialised: false,
@@ -89,6 +90,7 @@ define('forum/chats', [
 		Chats.addParentHandler(mainWrapper);
 		Chats.addCharactersLeftHandler(mainWrapper);
 		Chats.addTextareaResizeHandler(mainWrapper);
+		Chats.addTypingHandler(mainWrapper, roomId);
 		Chats.addIPHandler(mainWrapper);
 		Chats.createAutoComplete(roomId, $('[component="chat/input"]'));
 		Chats.addUploadHandler({
@@ -313,6 +315,23 @@ define('forum/chats', [
 		});
 	};
 
+	Chats.addTypingHandler = function (parent, roomId) {
+		const textarea = parent.find('[component="chat/input"]');
+		function emitTyping(typing) {
+			socket.emit('modules.chats.typing', {
+				roomId: roomId,
+				typing: typing,
+				username: app.user.username,
+			});
+		}
+
+		textarea.on('focus', () => emitTyping(!!textarea.val()));
+		textarea.on('blur', () => emitTyping(false));
+		textarea.on('input', utils.throttle(function () {
+			emitTyping(!!textarea.val());
+		}, 2500, true));
+	};
+
 	Chats.addActionHandlers = function (element, roomId) {
 		element.on('click', '[data-mid] [data-action]', function () {
 			const msgEl = $(this).parents('[data-mid]');
@@ -544,6 +563,7 @@ define('forum/chats', [
 				const html = await app.parseAndTranslate('partials/chats/message-window', payload);
 				const mainWrapper = components.get('chat/main-wrapper');
 				mainWrapper.html(html);
+				mainWrapper.attr('data-roomid', roomId);
 				chatNavWrapper = $('[component="chat/nav-wrapper"]');
 				html.find('.timeago').timeago();
 				ajaxify.data = { ...ajaxify.data, ...payload, roomId: roomId };
@@ -636,6 +656,13 @@ define('forum/chats', [
 				}
 			});
 		});
+
+		socket.on('event:chats.typing', async (data) => {
+			if (chatModule.isFromBlockedUser(data.uid)) {
+				return;
+			}
+			chatModule.updateTypingUserList($(`[component="chat/main-wrapper"][data-roomid="${data.roomId}"]`), data);
+		});
 	};
 
 	Chats.markChatPageElUnread = function (data) {

public/src/client/header/chat.js

@@ -25,8 +25,8 @@ define('forum/header/chat', [
 		socket.removeListener('event:chats.receive', onChatMessageReceived);
 		socket.on('event:chats.receive', onChatMessageReceived);
 
-		socket.removeListener('event:user_status_change', onUserStatusChange);
-		socket.on('event:user_status_change', onUserStatusChange);
+		socket.removeListener('event:chats.typing', onUserTyping);
+		socket.on('event:chats.typing', onUserTyping);
 
 		socket.removeListener('event:chats.roomRename', onRoomRename);
 		socket.on('event:chats.roomRename', onRoomRename);
@@ -63,8 +63,8 @@ define('forum/header/chat', [
 		requireAndCall('onChatMessageReceived', data);
 	}
 
-	function onUserStatusChange(data) {
-		requireAndCall('onUserStatusChange', data);
+	function onUserTyping(data) {
+		requireAndCall('onUserTyping', data);
 	}
 
 	function onRoomRename(data) {

public/src/modules/chat.js

@@ -226,11 +226,6 @@ define('chat', [
 		});
 	}
 
-	module.onUserStatusChange = function (data) {
-		const modal = module.getModal(data.uid);
-		app.updateUserStatus(modal.find('[component="user/status"]'), data.status);
-	};
-
 	module.onRoomRename = function (data) {
 		const modal = module.getModal(data.roomId);
 		const titleEl = modal.find('[component="chat/room/name"]');
@@ -252,6 +247,44 @@ define('chat', [
 		}));
 	};
 
+	module.onUserTyping = function (data) {
+		if (module.isFromBlockedUser(data.uid)) {
+			return;
+		}
+		const modal = module.getModal(data.roomId);
+		if (modal.length) {
+			module.updateTypingUserList(modal, data);
+		}
+	};
+
+	module.updateTypingUserList = async function (container, { uid, username, typing }) {
+		const typingEl = container.find(`[component="chat/composer/typing"]`);
+		const typingUsersList = typingEl.find('[component="chat/composer/typing/users"]');
+		const userEl = typingUsersList.find(`[data-uid="${uid}"]`);
+
+		if (typing && !userEl.length) {
+			$(`<div/>`).attr('data-uid', uid)
+				.text(username)
+				.appendTo(typingUsersList);
+		} else if (!typing && userEl.length) {
+			userEl.remove();
+		}
+
+		const usernames = [];
+		typingUsersList.children().each((i, el) => {
+			usernames.push($(el).text());
+		});
+
+		const typingTextEl = typingEl.find('[component="chat/composer/typing/text"]');
+		const count = usernames.length > 3 ? 'n' : usernames.length;
+		if (count) {
+			const key = `modules:chat.user_typing_${count}`;
+			const compiled = translator.compile.apply(null, [key, ...usernames]);
+			typingTextEl.html(await translator.translate(compiled));
+		}
+		typingTextEl.toggleClass('hidden', !usernames.length);
+	};
+
 	module.getModal = function (roomId) {
 		return $('#chat-modal-' + roomId);
 	};
@@ -370,6 +403,7 @@ define('chat', [
 				Chats.addParentHandler(chatModal.find('[component="chat/message/content"]'));
 				Chats.addCharactersLeftHandler(chatModal);
 				Chats.addTextareaResizeHandler(chatModal);
+				Chats.addTypingHandler(chatModal, roomId);
 				Chats.addIPHandler(chatModal);
 				Chats.addTooltipHandler(chatModal);
 				Chats.addUploadHandler({

public/src/utils.common.js

@@ -707,9 +707,7 @@ const utils = {
 			const args = arguments;
 			const later = function () {
 				timeout = null;
-				if (!immediate) {
-					func.apply(context, args);
-				}
+				func.apply(context, args);
 			};
 			const callNow = immediate && !timeout;
 			if (!timeout) {

src/socket.io/index.js

@@ -97,6 +97,19 @@ function onConnection(socket) {
 		}, onMessage, socket, payload);
 	});
 
+	socket.on('disconnecting', () => {
+		for (const room of socket.rooms) {
+			if (room && room.match(/^chat_room_\d+$/)) {
+				Sockets.server.in(room).emit('event:chats.typing', {
+					roomId: room.split('_').pop(),
+					uid: socket.uid,
+					username: '',
+					typing: false,
+				});
+			}
+		}
+	});
+
 	socket.on('disconnect', () => {
 		onDisconnect(socket);
 	});

src/socket.io/modules.js

@@ -1,6 +1,7 @@
 'use strict';
 
 const _ = require('lodash');
+const validator = require('validator');
 
 const db = require('../database');
 const Messaging = require('../messaging');
@@ -264,5 +265,21 @@ SocketModules.chats.loadPinnedMessages = async (socket, data) => {
 	return pinnedMsgs;
 };
 
+SocketModules.chats.typing = async (socket, data) => {
+	if (!data || !utils.isNumber(data.roomId) || typeof data.typing !== 'boolean') {
+		throw new Error('[[error:invalid-data]]');
+	}
+	const isInRoom = await Messaging.isUserInRoom(socket.uid, data.roomId);
+	if (!isInRoom) {
+		throw new Error('[[error:no-privileges]]');
+	}
+	socket.to(`chat_room_${data.roomId}`).emit('event:chats.typing', {
+		uid: socket.uid,
+		roomId: data.roomId,
+		typing: data.typing,
+		username: validator.escape(String(data.username)),
+	});
+};
+
 
 require('../promisify')(SocketModules);