MUC: Don't show duplicate `join` messages.

converse-logs/converse-logs.js

 define("transcripts", [
-    "tpl!converse-logs/conversejs.containers-1460718487729",
+    "tpl!converse-logs/double_logins",
 ], function () {
     return arguments;
 });

spec/chatroom.js

@@ -400,7 +400,7 @@
                     }).up()
                     .c('status', {code: '110'});
                 _converse.connection._dataRecv(test_utils.createRequest(presence));
-                expect($chat_content.find('div.chat-info:first').html()).toBe("some1 has joined the room");
+                expect($chat_content.find('div.chat-info:first').html()).toBe("some1 has joined the room.");
 
                 presence = $pres({
                         to: 'dummy@localhost/_converse.js-29092160',
@@ -413,7 +413,20 @@
                     });
                 _converse.connection._dataRecv(test_utils.createRequest(presence));
                 expect($chat_content.find('div.chat-info').length).toBe(2);
-                expect($chat_content.find('div.chat-info:last').html()).toBe("newguy has joined the room");
+                expect($chat_content.find('div.chat-info:last').html()).toBe("newguy has joined the room.");
+
+                // Don't show duplicate join messages
+                presence = $pres({
+                        to: 'dummy@localhost/_converse.js-290918392',
+                        from: 'coven@chat.shakespeare.lit/newguy'
+                    }).c('x', {xmlns: Strophe.NS.MUC_USER})
+                    .c('item', {
+                        'affiliation': 'none',
+                        'jid': 'newguy@localhost/_converse.js-290929789',
+                        'role': 'participant'
+                    });
+                _converse.connection._dataRecv(test_utils.createRequest(presence));
+                expect($chat_content.find('div.chat-info').length).toBe(2);
 
                 presence = $pres({
                         to: 'dummy@localhost/_converse.js-29092160',
@@ -1203,7 +1216,7 @@
                 expect($occupants.children().first(0).text()).toBe("oldnick");
 
                 expect($chat_content.find('div.chat-info').length).toBe(2);
-                expect($chat_content.find('div.chat-info:first').html()).toBe("oldnick has joined the room");
+                expect($chat_content.find('div.chat-info:first').html()).toBe("oldnick has joined the room.");
                 expect($chat_content.find('div.chat-info:last').html()).toBe(__(_converse.muc.new_nickname_messages["210"], "oldnick"));
 
                 presence = $pres().attrs({
@@ -1245,7 +1258,7 @@
                 _converse.connection._dataRecv(test_utils.createRequest(presence));
                 expect($chat_content.find('div.chat-info').length).toBe(4);
                 expect($chat_content.find('div.chat-info').get(2).textContent).toBe(__(_converse.muc.new_nickname_messages["303"], "newnick"));
-                expect($chat_content.find('div.chat-info').last().html()).toBe("newnick has joined the room");
+                expect($chat_content.find('div.chat-info').last().html()).toBe("newnick has joined the room.");
                 $occupants = view.$('.occupant-list');
                 expect($occupants.children().length).toBe(1);
                 expect($occupants.children().first(0).text()).toBe("newnick");

spec/transcripts.js

@@ -50,10 +50,10 @@
 
         it("can be used to replay conversations", mock.initConverse(function (_converse) {
             /*
-            test_utils.openChatRoom(_converse, "dummy", 'rooms.localhost', 'jc');
-            test_utils.openChatRoom(_converse, "prosody", 'conference.prosody.im', 'jc');
+            test_utils.openAndEnterChatRoom(_converse, "dummy", 'rooms.localhost', 'jc');
+            test_utils.openAndEnterChatRoom(_converse, "prosody", 'conference.prosody.im', 'jc');
             */
-            test_utils.openChatRoom(_converse, "discuss", 'conference.conversejs.org', 'ee');
+            test_utils.openAndEnterChatRoom(_converse, "discuss", 'conference.conversejs.org', 'jc');
             spyOn(_converse, 'areDesktopNotificationsEnabled').andReturn(true);
             _.each(transcripts, function (transcript) {
                 var text = transcript();

src/converse-muc.js

@@ -1702,15 +1702,24 @@
                     // result look like the structure returned by
                     // parseXUserElement. Not nice...
                     var nick = Strophe.getResourceFromJid(stanza.getAttribute('from'));
-                    if (stanza.getAttribute('type') === 'unavailable') {
                     var stat = stanza.querySelector('status');
+                    if (stanza.getAttribute('type') === 'unavailable') {
                         if (!_.isNull(stat) && stat.textContent) {
                             return [{'messages': [__(nick+' has left the room. "'+stat.textContent+'"')]}];
                         } else {
                             return [{'messages': [__(nick+' has left the room')]}];
                         }
                     }
-                    return [{'messages': [__(nick+' has joined the room')]}];
+                    if (!this.occupantsview.model.find({'nick': nick})) {
+                        // Only show join message if we don't already have the
+                        // occupant model. Doing so avoids showing duplicate
+                        // join messages.
+                        if (!_.isNull(stat) && stat.textContent) {
+                            return [{'messages': [__(nick+' has joined the room. "'+stat.textContent+'"')]}];
+                        } else {
+                            return [{'messages': [__(nick+' has joined the room.')]}];
+                        }
+                    }
                 },
 
                 showStatusMessages: function (stanza) {
@@ -1837,6 +1846,8 @@
                         this.getRoomFeatures();
                     }
                     this.hideSpinner().showStatusMessages(pres);
+                    // This must be called after showStatusMessages so that
+                    // "join" messages are correctly shown.
                     this.occupantsview.updateOccupantsOnPresence(pres);
                     if (this.model.get('role') !== 'none' &&
                             this.model.get('connection_status') === ROOMSTATUS.CONNECTING) {