proper tracking of users' reply status when others enter the room

public/src/forum/topic.js

@@ -618,7 +618,6 @@ define(['composer', 'forum/pagination'], function(composer, pagination) {
 		]);
 
 		socket.on('get_users_in_room', function(data) {
-
 			if(data && data.room.indexOf('topic') !== -1) {
 				var activeEl = $('li.post-bar[data-index="0"] .thread_active_users');
 
@@ -696,6 +695,17 @@ define(['composer', 'forum/pagination'], function(composer, pagination) {
 						title: title
 					});
 				}
+
+				// Get users who are currently replying to the topic entered
+				socket.emit('modules.composer.getUsersByTid', templates.get('topic_id'), function(err, uids) {
+					var	activeUsersEl = $('.thread_active_users'),
+						x;
+					if (uids && uids.length) {
+						for(var x=0;x<uids.length;x++) {
+							activeUsersEl.find('[data-uid="' + uids[x] + '"]').addClass('replying');
+						}
+					}
+				});
 			}
 
 			app.populateOnlineUsers();
@@ -896,7 +906,7 @@ define(['composer', 'forum/pagination'], function(composer, pagination) {
 
 			votes.html(currentVotes).attr('data-votes', currentVotes);
 			reputationElements.html(reputation).attr('data-reputation', reputation);
-		}
+		};
 
 		function adjust_favourites(value, pid, uid) {
 			var favourites = $('li[data-pid="' + pid + '"] .favouriteCount'),
@@ -905,7 +915,7 @@ define(['composer', 'forum/pagination'], function(composer, pagination) {
 			currentFavourites += value;
 
 			favourites.html(currentFavourites).attr('data-favourites', currentFavourites);
-		}
+		};
 
 		function set_follow_state(state, alert) {
 
@@ -920,7 +930,7 @@ define(['composer', 'forum/pagination'], function(composer, pagination) {
 					type: 'success'
 				});
 			}
-		}
+		};
 
 		function set_locked_state(locked, alert) {
 			translator.translate('<i class="fa fa-fw fa-' + (locked ? 'un': '') + 'lock"></i> [[topic:thread_tools.' + (locked ? 'un': '') + 'lock]]', function(translated) {
@@ -943,7 +953,7 @@ define(['composer', 'forum/pagination'], function(composer, pagination) {
 			}
 
 			thread_state.locked = locked ? '1' : '0';
-		}
+		};
 
 		function set_delete_state(deleted) {
 			var threadEl = $('#post-container');
@@ -960,7 +970,7 @@ define(['composer', 'forum/pagination'], function(composer, pagination) {
 			} else {
 				$('#thread-deleted').remove();
 			}
-		}
+		};
 
 		function set_pinned_state(pinned, alert) {
 			translator.translate('<i class="fa fa-fw fa-thumb-tack"></i> [[topic:thread_tools.' + (pinned ? 'unpin' : 'pin') + ']]', function(translated) {
@@ -977,7 +987,7 @@ define(['composer', 'forum/pagination'], function(composer, pagination) {
 				}
 				thread_state.pinned = pinned ? '1' : '0';
 			});
-		}
+		};
 
 		function toggle_post_delete_state(pid) {
 			var postEl = $('#post-container li[data-pid="' + pid + '"]');
@@ -989,7 +999,7 @@ define(['composer', 'forum/pagination'], function(composer, pagination) {
 
 				updatePostCount();
 			}
-		}
+		};
 
 		function toggle_post_tools(pid, isDeleted) {
 			var postEl = $('#post-container li[data-pid="' + pid + '"]');
@@ -999,7 +1009,7 @@ define(['composer', 'forum/pagination'], function(composer, pagination) {
 			translator.translate(isDeleted ? ' [[topic:restore]]' : ' [[topic:delete]]', function(translated) {
 				postEl.find('.delete').find('span').html(translated);
 			});
-		}
+		};
 
 		$(window).on('scroll', updateHeader);
 		$(window).trigger('action:topic.loaded');

src/socket.io/modules.js

@@ -12,6 +12,7 @@ var	posts = require('../posts'),
 	async = require('async'),
 	S = require('string'),
 	winston = require('winston'),
+	_ = require('underscore'),
 	server = require('./'),
 
 	SocketModules = {};
@@ -22,6 +23,27 @@ SocketModules.composer = {
 	replyHash: {}
 };
 
+var	stopTracking = function(replyObj) {
+		if (isLast(replyObj.uid, replyObj.tid)) {
+			server.in('topic_' + replyObj.tid).emit('event:topic.replyStop', replyObj.uid);
+		}
+
+		clearInterval(replyObj.timer);
+		delete SocketModules.composer.replyHash[replyObj.uuid];
+	},
+	isLast = function(uid, tid) {
+		return _.filter(SocketModules.composer.replyHash, function(replyObj, uuid) {
+			if (
+				parseInt(replyObj.tid, 10) === parseInt(tid, 10) &&
+				parseInt(replyObj.uid, 10) === parseInt(uid, 10)
+			) {
+				return true;
+			} else {
+				return false;
+			}
+		}).length === 1;
+	};
+
 SocketModules.composer.push = function(socket, pid, callback) {
 	if (socket.uid || parseInt(meta.config.allowGuestPosting, 10)) {
 		if (parseInt(pid, 10) > 0) {
@@ -90,8 +112,7 @@ SocketModules.composer.register = function(socket, data) {
 			data.lastPing = Date.now();
 			socket.emit('event:composer.ping', data.uuid);
 		} else {
-			server.in('topic_' + data.tid).emit('event:topic.replyStop', data.uid);
-			delete SocketModules.composer.replyHash[data.uuid];
+			stopTracking(data);
 		}
 	}, 1000*5);	// Every 5 seconds...
 
@@ -101,9 +122,7 @@ SocketModules.composer.register = function(socket, data) {
 SocketModules.composer.unregister = function(socket, uuid) {
 	var	replyObj = SocketModules.composer.replyHash[uuid];
 	if (uuid && replyObj) {
-		server.in('topic_' + replyObj.tid).emit('event:topic.replyStop', replyObj.uid);
-		clearInterval(replyObj.timer);
-		delete SocketModules.composer.replyHash[replyObj.uuid];
+		stopTracking(replyObj);
 	}
 };
 
@@ -114,6 +133,20 @@ SocketModules.composer.pingActive = function(socket, uuid) {
 	}
 };
 
+SocketModules.composer.getUsersByTid = function(socket, tid, callback) {
+	// Return uids with active composers
+	console.log(tid);
+	callback(null, _.filter(SocketModules.composer.replyHash, function(replyObj, uuid) {
+		if (parseInt(replyObj.tid, 10) === parseInt(tid, 10)) {
+			return true;
+		} else {
+			return false;
+		}
+	}).map(function(replyObj) {
+		return replyObj.uid
+	}));
+}
+
 /* Chat */
 
 SocketModules.chats = {};