Port questionbox all (followers) functionality to TypeScript

app/javascript/retrospring/features/questionbox/all.ts

@@ -0,0 +1,42 @@
+import Rails from '@rails/ujs';
+import { showErrorNotification, showNotification } from 'utilities/notifications';
+import I18n from '../../../legacy/i18n';
+
+export function questionboxAllHandler(event: Event): void {
+  const button = event.target as HTMLButtonElement;
+
+  button.disabled = true;
+  document.querySelector<HTMLInputElement>('textarea[name=qb-all-question]').readOnly = true;
+
+  Rails.ajax({
+    url: '/ajax/ask',
+    type: 'POST',
+    data: new URLSearchParams({
+      rcpt: 'followers',
+      question: document.querySelector<HTMLInputElement>('textarea[name=qb-all-question]').value,
+      anonymousQuestion: 'false'
+    }).toString(),
+    success: (data) => {
+      if (data.success) {
+        document.querySelector<HTMLInputElement>('textarea[name=qb-all-question]').value = '';
+        window['$']('#modal-ask-followers').modal('hide');
+      }
+      
+      showNotification(data.message, data.success);
+    },
+    error: (data, status, xhr) => {
+      console.log(data, status, xhr);
+      showErrorNotification(I18n.translate('frontend.error.message'));
+    },
+    complete: () => {
+      button.disabled = false;
+      document.querySelector<HTMLInputElement>('textarea[name=qb-all-question]').readOnly = false;
+    }
+  });
+}
+
+export function questionboxAllInputHandler(event: KeyboardEvent) {
+  if (event.keyCode == 13 && (event.ctrlKey || event.metaKey)) {
+    document.querySelector<HTMLButtonElement>(`button[name=qb-all-ask]`).click();
+  }
+}