1 files changed, 14 insertions, 23 deletions

diff --git a/beamer/viewer/presentation.js b/beamer/viewer/presentation.js
index 222a6d4..f7f47b2 100644
--- a/beamer/viewer/presentation.js
+++ b/beamer/viewer/presentation.js
@@ -1,19 +1,7 @@
 /*
  * Beamer Viewer, a web-based PDF presentation viewer
- * Copyright (C) 2018 Pacien TRAN-GIRARD
- * 
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License as
- * published by the Free Software Foundation, either version 3 of the
- * License, or (at your option) any later version.
- * 
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU Affero General Public License for more details.
- * 
- * You should have received a copy of the GNU Affero General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ * Copyright 2018-2024 Pacien TRAN-GIRARD
+ * SPDX-License-Identifier: EUPL-1.2
  */
 
 "use strict";
@@ -25,12 +13,16 @@ class Presentation {
     this.stage = this._setupStage();
   }
 
+  start() {
+    this.stage.start();
+  }
+
   _setupStage() {
-    const self = this;
-    const onStageReadyCallback = function() { self._onStageReady(); };
-    const onNextCallback = function() { self._onNext(); };
-    const onPreviousCallback = function() { self._onPrevious(); };
-    return new Stage(onStageReadyCallback, onNextCallback, onPreviousCallback);
+    return new Stage(
+      () => this._onStageReady(),
+      () => this._onNext(),
+      () => this._onPrevious(),
+    );
   }
 
   _onStageReady() {
@@ -48,10 +40,9 @@ class Presentation {
   }
 
   _setPage(pageIndex) {
-    const self = this;
     this.currentPageIndex = pageIndex;
-    this.pdf.getPage(this.currentPageIndex).then(function(page) {
-      self.stage.setPage(page);
-    })
+    this.pdf
+      .getPage(this.currentPageIndex)
+      .then(page => this.stage.setPage(page))
   }
 }