Tweak the emoji picker

templates/new.html

@@ -35,8 +35,16 @@
 </div>
 </div>
 <script>
+// The new post textarea
 var ta = document.getElementsByTagName("textarea")[0];
+// Helper for inserting text (emojis) in the textarea
 function insertAtCursor (textToInsert) {
+    ta.focus();
+    const isSuccess = document.execCommand("insertText", false, textToInsert);
+
+    // Firefox (non-standard method)
+    if (!isSuccess) {
+        // Credits to https://www.everythingfrontend.com/posts/insert-text-into-textarea-at-cursor-position.html
         // get current text of the input
         const value = ta.value;
         // save selection start and end position
@@ -47,11 +55,14 @@ function insertAtCursor (textToInsert) {
         // update cursor to be at the end of insertion
         ta.selectionStart = ta.selectionEnd = start + textToInsert.length;
     }
+}
+// Emoji click callback func
 var ji = function (ev) {
-    insertAtCursor(ev.target.attributes.alt.value);
+    insertAtCursor(ev.target.attributes.alt.value + " ");
     ta.focus()
     //console.log(document.execCommand('insertText', false /*no UI*/, ev.target.attributes.alt.value));
 }
+// Enable the click for each emojis
 var items = document.getElementsByClassName("ji")
 for (var i = 0; i < items.length; i++) {
     items[i].addEventListener('click', ji);