diff --git a/packages/editor/src/classes/bootstrap/BootstrapDialog.js b/packages/editor/src/classes/bootstrap/BootstrapDialog.js
index 33099fd5..848ebeb4 100644
--- a/packages/editor/src/classes/bootstrap/BootstrapDialog.js
+++ b/packages/editor/src/classes/bootstrap/BootstrapDialog.js
@@ -114,7 +114,7 @@ class BootstrapDialog extends Options {
     return header;
   }
 
-  onAcceptClick() {
+  onAcceptClick(event) {
     throw new Error('Unsupported operation');
   }
 
@@ -122,7 +122,7 @@ class BootstrapDialog extends Options {
     // Overwrite default behaviour ...
   }
 
-  onRemoveClick() {
+  onRemoveClick(event) {
     throw new Error('Unsupported operation');
   }
 
diff --git a/packages/mindplot/src/components/widget/NoteEditor.js b/packages/mindplot/src/components/widget/NoteEditor.ts
similarity index 87%
rename from packages/mindplot/src/components/widget/NoteEditor.js
rename to packages/mindplot/src/components/widget/NoteEditor.ts
index 3d127996..b7691e49 100644
--- a/packages/mindplot/src/components/widget/NoteEditor.js
+++ b/packages/mindplot/src/components/widget/NoteEditor.ts
@@ -20,8 +20,13 @@ import $ from 'jquery';
 import BootstrapDialog from '../../../../editor/src/classes/bootstrap/BootstrapDialog';
 import { $msg } from '../Messages';
 
+interface NoteEditorModel {
+  getValue(): string;
+  setValue(value: string): void;
+}
+
 class NoteEditor extends BootstrapDialog {
-  constructor(model) {
+  constructor(model: NoteEditorModel) {
     $assert(model, 'model can not be null');
     super($msg('NOTE'), {
       cancelButton: true,
@@ -30,13 +35,12 @@ class NoteEditor extends BootstrapDialog {
       removeButton: typeof model.getValue() !== 'undefined',
       onEventData: { model },
     });
-    this._model = model;
     this.css({ margin: '150px auto' });
     const panel = this._buildPanel(model);
     this.setContent(panel);
   }
 
-  _buildPanel(model) {
+  _buildPanel(model: NoteEditorModel) {
     const result = $('<div></div>').css('padding-top', '5px');
 
     const form = $('<form></form>').attr({
@@ -68,20 +72,20 @@ class NoteEditor extends BootstrapDialog {
     return result;
   }
 
-  onAcceptClick(event) {
+  onAcceptClick(event): void {
     event.data.dialog._submitForm(event.data.model);
   }
 
-  _submitForm(model) {
+  _submitForm(model: NoteEditorModel) {
     const textarea = this._native.find('textarea');
     if (textarea.val()) {
-      model.setValue(textarea.val());
+      model.setValue(textarea.val() as string);
     }
     this.close();
   }
 
   onDialogShown() {
-    $(this).find('textarea').focus();
+    $(this).find('textarea').trigger('focus');
   }
 
   onRemoveClick(event) {