fix setup of new document, closes #966

src/public/app/dialogs/info.js

@@ -0,0 +1,33 @@
+import utils from "../services/utils.js";
+
+const $dialog = $("#info-dialog");
+const $infoContent = $("#info-dialog-content");
+const $okButton = $("#info-dialog-ok-button");
+
+let resolve;
+let $originallyFocused; // element focused before the dialog was opened so we can return to it afterwards
+
+export function info(message) {
+    $originallyFocused = $(':focus');
+
+    $infoContent.text(message);
+
+    utils.openDialog($dialog);
+
+    return new Promise((res, rej) => { resolve = res; });
+}
+
+$dialog.on('shown.bs.modal', () => $okButton.trigger("focus"));
+
+$dialog.on("hidden.bs.modal", () => {
+    if (resolve) {
+        resolve();
+    }
+
+    if ($originallyFocused) {
+        $originallyFocused.trigger('focus');
+        $originallyFocused = null;
+    }
+});
+
+$okButton.on('click', () => $dialog.modal("hide"));