Left pane: small sorting fix, logging for error cases (#1969)

js/views/conversation_list_view.js

@@ -10,23 +10,45 @@
         itemView: Whisper.ConversationListItemView,
         updateLocation: function(conversation) {
             var $el = this.$('.' + conversation.cid);
-            if ($el && $el.length > 0) {
-                var inboxCollection = getInboxCollection();
-                var index = inboxCollection.indexOf(conversation);
-                var elIndex = this.$el.index($el);
 
-                if (index === elIndex) {
-                    return;
-                }
-                if (index === 0) {
-                    this.$el.prepend($el);
-                } else if (index === this.collection.length - 1) {
-                    this.$el.append($el);
-                } else {
-                    var targetConversation = inboxCollection.at(index + 1);
-                    var target = this.$('.' + targetConversation.cid);
-                    $el.insertBefore(target);
-                }
+            if (!$el || !$el.length) {
+                console.log(
+                    'updateLocation: did not find element for conversation',
+                    conversation.idForLogging()
+                );
+                return;
+            }
+            if ($el.length > 1) {
+                console.log(
+                    'updateLocation: found more than one element for conversation',
+                    conversation.idForLogging()
+                );
+                return;
+            }
+
+            var $allConversations = this.$('.conversation-list-item');
+            var inboxCollection = getInboxCollection();
+            var index = inboxCollection.indexOf(conversation);
+
+            var elIndex = $allConversations.index($el);
+            if (elIndex < 0) {
+                console.log(
+                    'updateLocation: did not find index for conversation',
+                    conversation.idForLogging()
+                );
+            }
+
+            if (index === elIndex) {
+                return;
+            }
+            if (index === 0) {
+                this.$el.prepend($el);
+            } else if (index === this.collection.length - 1) {
+                this.$el.append($el);
+            } else {
+                var targetConversation = inboxCollection.at(index - 1);
+                var target = this.$('.' + targetConversation.cid);
+                $el.insertAfter(target);
             }
         },
         removeItem: function(conversation) {