16 files changed, 659 insertions, 1040 deletions

diff --git a/.gitignore b/.gitignore
index 47e221d..853f429 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,17 +1,5 @@
 # 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
  
 *.sty
diff --git a/appcache.js b/appcache.js
index ee9e356..f6f7cca 100644
--- a/appcache.js
+++ b/appcache.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";
@@ -24,7 +12,6 @@ class AppCache {
     this.cacheName = "cache";
     this.filesToCache = [
       ".",
-      "popup.html",
       "appcache.js",
       "favicon.ico",
       "sample/demo.pdf",
diff --git a/beamer/viewer/init.js b/beamer/viewer/init.js
index 9192834..c8b1ccf 100644
--- a/beamer/viewer/init.js
+++ b/beamer/viewer/init.js
@@ -1,32 +1,11 @@
 /*
  * 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";
 
-const params = function() {
-  const queryDict = {};
-  location.hash.substr(1).split("&").forEach(item => {
-    const pair = item.split("=");
-    queryDict[pair[0]] = pair[1];
-  });
-  return queryDict;
-}();
-
 function isController() {
   return window.opener == null || window.opener.location.href != window.location.href;
 }
@@ -39,28 +18,9 @@ function initCache() {
   offlineCapableIndicator.style.visibility = "visible";
 }
 
-function checkPopupPermission() {
-  const popup = window.open("popup.html");
-
-  if (popup == null) {
-    const warningMessage = document.getElementById("warning");
-    warningMessage.textContent = "A pop-up blocker is active. Make sure to allow pop-ups on this website.";
-  }
-}
-
 function init() {
   initCache();
-  checkPopupPermission();
-
   const viewer = new Viewer();
-
-  if ("file" in params)
-    viewer.load(params["file"]);
-}
-
-function load(file) {
-  location.hash = "file=" + file;
-  location.reload();
 }
 
 if (isController())
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))
   }
 }
diff --git a/beamer/viewer/screen/screen.js b/beamer/viewer/screen/screen.js
index c65ebc3..4bebab4 100644
--- a/beamer/viewer/screen/screen.js
+++ b/beamer/viewer/screen/screen.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";
@@ -42,10 +30,7 @@ class Screen {