[Editor] Fix test failures in m-c because of the new FreeText undo/redo stuff

src/display/editor/annotation_editor_layer.js

@@ -330,36 +330,6 @@ class AnnotationEditorLayer {
     }
   }
 
-  /**
-   * Add a new editor and make this addition undoable.
-   * @param {AnnotationEditor} editor
-   */
-  addANewEditor(editor) {
-    const cmd = () => {
-      this.addOrRebuild(editor);
-    };
-    const undo = () => {
-      editor.remove();
-    };
-
-    this.addCommands({ cmd, undo, mustExec: true });
-  }
-
-  /**
-   * Add a new editor and make this addition undoable.
-   * @param {AnnotationEditor} editor
-   */
-  addUndoableEditor(editor) {
-    const cmd = () => {
-      this.addOrRebuild(editor);
-    };
-    const undo = () => {
-      editor.remove();
-    };
-
-    this.addCommands({ cmd, undo, mustExec: false });
-  }
-
   /**
    * Get an id for an editor.
    * @returns {string}

src/display/editor/editor.js

@@ -472,6 +472,7 @@ class AnnotationEditor {
    */
   rebuild() {
     this.div?.addEventListener("focusin", this.#boundFocusin);
+    this.div?.addEventListener("focusout", this.#boundFocusout);
   }
 
   /**

src/display/editor/freetext.js

@@ -46,8 +46,6 @@ class FreeTextEditor extends AnnotationEditor {
 
   #editorDivId = `${this.id}-editor`;
 
-  #hasAlreadyBeenCommitted = false;
-
   #fontSize;
 
   static _freeTextDefaultContent = "";
@@ -355,13 +353,6 @@ class FreeTextEditor extends AnnotationEditor {
     }
 
     super.commit();
-    if (!this.#hasAlreadyBeenCommitted) {
-      // This editor has something and it's the first time
-      // it's commited so we can add it in the undo/redo stack.
-      this.#hasAlreadyBeenCommitted = true;
-      this.parent.addUndoableEditor(this);
-    }
-
     this.disableEditMode();
     const savedText = this.#content;
     const newText = (this.#content = this.#extractText().trimEnd());
@@ -371,7 +362,12 @@ class FreeTextEditor extends AnnotationEditor {
 
     const setText = text => {
       this.#content = text;
+      if (!text) {
+        this.remove();
+        return;
+      }
       this.#setContent();
+      this.rebuild();
       this.#setEditorDimensions();
     };
     this.addCommands({