1 files changed, 67 insertions, 0 deletions

diff --git a/beamer/viewer/init.js b/beamer/viewer/init.js
new file mode 100644
index 0000000..9192834
--- /dev/null
+++ b/beamer/viewer/init.js
@@ -0,0 +1,67 @@
+/*
+ * 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/>.
+ */
+
+"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;
+}
+
+function initCache() {
+  if (!navigator.serviceWorker) return;
+  navigator.serviceWorker.register("appcache.js");
+  
+  const offlineCapableIndicator = document.getElementById("offlineCapable");
+  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())
+  init();