web: Make displayMessage public again

web/packages/core/src/internal/player/inner.tsx

@@ -1951,7 +1951,7 @@ export class InnerPlayer {
      *
      * @param message The message shown to the user.
      */
-    protected displayMessage(message: string): void {
+    public displayMessage(message: string): void {
         const div = document.createElement("div");
         div.id = "message-overlay";
         const messageDiv = document.createElement("div");

web/packages/core/src/internal/player/ruffle-player-element.tsx

@@ -160,6 +160,10 @@ export class RufflePlayerElement extends HTMLElement implements Player {
     set config(value: URLLoadOptions | DataLoadOptions | object) {
         this.#inner.config = value;
     }
+
+    displayMessage(message: string): void {
+        this.#inner.displayMessage(message);
+    }
 }
 
 /**

web/packages/core/src/public/legacy.ts

@@ -157,4 +157,11 @@ export interface LegacyRuffleAPI {
      * Fetches the loaded SWF and downloads it.
      */
     downloadSwf(): Promise<void>;
+
+    /**
+     * Show a dismissible message in front of the player.
+     *
+     * @param message The message shown to the user.
+     */
+    displayMessage(message: string): void;
 }