Fix emoji JS in the admin

app/static/new.js

@@ -0,0 +1,32 @@
+// 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
+        const start = ta.selectionStart;
+        const end = ta.selectionEnd;
+        // update the value with our text inserted
+        ta.value = value.slice(0, start) + textToInsert + value.slice(end);
+        // 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 + " ");
+    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);
+}