Refactored thread update code. Use indexOf() instead of contains() for strings

in format panel

boards/static/js/thread.js

@@ -58,7 +58,7 b' function addQuickReply(postId) {'
 
         // If this is not OP, add reflink to the post. If there already is
         // the same reflink, don't add it again.
-        if (!post.is(':first-child') && !textAreaJq.val().contains(postLinkRaw)) {
+        if (!post.is(':first-child') && textAreaJq.val().indexOf(postLinkRaw) < 0) {
             textToAdd += postLinkRaw + '\n';
         }
 

boards/static/js/thread_update.js

@@ -23,13 +23,15 b''
  for the JavaScript code in this page.
  */
 
+var CLASS_POST = '.post'
+
 var wsUser = '';
 
 var unreadPosts = 0;
 var documentOriginalTitle = '';
 
 // Thread ID does not change, can be stored one time
-var threadId = $('div.thread').children('.post').first().attr('id');
+var threadId = $('div.thread').children(CLASS_POST).first().attr('id');
 
 /**
  * Connect to websocket server and subscribe to thread updates. On any update we
@@ -97,6 +99,10 b' function getThreadDiff() {'
                 hasMetaUpdates = true;
             }
 
+            var addedPostsCount = addedPosts.length;
+            updateBumplimitProgress(addedPostsCount);
+            showNewPostsTitle(addedPostsCount);
+
             var updatedPosts = data.updated;
 
             for (var i = 0; i < updatedPosts.length; i++) {
@@ -136,13 +142,7 b' function updatePost(postHtml) {'
     if (existingPosts.size() > 0) {
         existingPosts.replaceWith(post);
     } else {
-        var threadPosts = threadBlock.children('.post');
-        var lastPost = threadPosts.last();
-
-        post.appendTo(lastPost.parent());
-
-        updateBumplimitProgress(1);
-        showNewPostsTitle(1);
+        post.appendTo(threadBlock);
 
         if (bottom) {
             scrollToBottom();
@@ -176,7 +176,7 b' function initAutoupdate() {'
 }
 
 function getReplyCount() {
-    return $('.thread').children('.post').length
+    return $('.thread').children(CLASS_POST).length
 }
 
 function getImageCount() {