Some initial work on removing jQuery

src/converse-muc.js

@@ -1804,25 +1804,25 @@
                     this.scrollDown();
                 },
 
-                onChatRoomMessage: function (msg) {
+                onChatRoomMessage: function (message) {
                     /* Given a <message> stanza, create a message
                      * Backbone.Model if appropriate.
                      *
                      * Parameters:
                      *  (XMLElement) msg: The received message stanza
                      */
-                    var $message = $(msg),
-                        $forwarded = $message.find('forwarded'),
-                        $delay;
-                    if ($forwarded.length) {
-                        $message = $forwarded.children('message');
-                        $delay = $forwarded.children('delay');
-                    }
-                    var jid = msg.getAttribute('from'),
-                        msgid = msg.getAttribute('id'),
+                    var original_stanza = message,
+                        forwarded = message.querySelector('forwarded'),
+                        delay;
+                    if (!_.isNull(forwarded)) {
+                        message = forwarded.querySelector('message');
+                        delay = forwarded.querySelector('delay');
+                    }
+                    var jid = message.getAttribute('from'),
+                        msgid = message.getAttribute('id'),
                         resource = Strophe.getResourceFromJid(jid),
                         sender = resource && Strophe.unescapeNode(resource) || '',
-                        subject = $message.children('subject').text(),
+                        subject = _.propertyOf(message.querySelector('subject'))('textContent'),
                         dupes = msgid && this.model.messages.filter(function (msg) {
                             // Find duplicates.
                             // Some bots (like HAL in the prosody chatroom)
@@ -1839,7 +1839,7 @@
                     if (sender === '') {
                         return true;
                     }
-                    this.model.createMessage($message, $delay, msg);
+                    this.model.createMessage(message, delay, original_stanza);
                     if (sender !== this.model.get('nick')) {
                         // We only emit an event if it's not our own message
                         converse.emit('message', msg);

src/converse-otr.js

@@ -107,10 +107,9 @@
                         !(utils.isOTRMessage($message[0]) && !_.includes([UNVERIFIED, VERIFIED], this.get('otr_status')));
                 },
 
-                createMessage: function ($message, $delay, original_stanza) {
+                createMessage: function (message, delay, original_stanza) {
                     var converse = this.__super__.converse,
-                        $body = $message.children('body'),
-                        text = ($body.length > 0 ? $body.text() : undefined);
+                        text = _.propertyOf(message.querySelector('body'))('textContent');
 
                     if ((!text) || (!converse.allow_otr)) {
                         return this.__super__.createMessage.apply(this, arguments);