JS formatting panel refactoring

boards/static/js/thread.js

@@ -46,15 +46,20 b' function resetFormPosition() {'
 }
 
 function addQuickReply(postId) {
+    var postLinkRaw = '[post]' + postId + '[/post]'
+
     var textToAdd = '';
     var blockToInsert = null;
 
+    var textAreaJq = $('textarea');
+
     if (postId != null) {
         var post = $('#' + postId);
 
-        // If this is not OP, add reflink to the post
-        if (!post.is(':first-child')) {
-            textToAdd += '[post]' + postId + '[/post]\n';
+        // 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)) {
+            textToAdd += postLinkRaw + '\n';
         }
 
         blockToInsert = post;
@@ -67,15 +72,14 b' function addQuickReply(postId) {'
         textToAdd += '[quote]' + selection + '[/quote]\n';
     }
 
-    var textAreaId = 'textarea';
-    $(textAreaId).val($(textAreaId).val()+ textToAdd);
+    textAreaJq.val(textAreaJq.val()+ textToAdd);
 
     var form = getForm();
     form.insertAfter(blockToInsert);
     form.show();
 
+    textAreaJq.focus();
     var textarea = document.getElementsByTagName('textarea')[0];
-    $(textAreaId).focus();
     moveCaretToEnd(textarea);
 }