fts

2026-10-03 13:58:22 +00:00
parent 3075d951ba
commit 98b08f6e57
431 changed files with 210848 additions and 60 deletions
@@ -0,0 +1,47 @@
+"use strict";
+
+// Configure the upstream generic viewer before its application starts.
+const target = window.parent.document;
+function configureViewer(event) {
+  if (event.detail?.source !== window) return;
+  const options = window.PDFViewerApplicationOptions;
+  const app = window.PDFViewerApplication;
+  const file = new URLSearchParams(location.search).get("file") || "";
+  const match = file.match(/^\/api\/documents\/([a-f0-9]{32})\/content(?:\?v=[a-f0-9]{16})?$/);
+  if (!match) history.replaceState({}, "", location.pathname + "?file=");
+  options.setAll({
+    defaultUrl: "", disablePreferences: true, disableHistory: true,
+    localeProperties: {lang: "de"}, viewerCssTheme: 1,
+    enableScripting: false, annotationEditorMode: -1, annotationMode: 1,
+    enableComment: false, enableAltText: false, enableGuessAltText: false,
+    enableAltTextModelDownload: false, enableHighlightFloatingButton: false,
+    enableWebGPU: false, defaultZoomValue: "page-width",
+  });
+  // Downloads use the original endpoint and its fresh access checks.
+  const download = async () => {
+    if (!match) return;
+    const link = document.createElement("a");
+    link.href = `/api/documents/${match[1]}/download`;
+    link.download = app._docFilename || "";
+    document.body.append(link); link.click(); link.remove();
+  };
+  app.download = app.save = app.downloadOrSave = download;
+  const run = app.run.bind(app);
+  app.run = async config => {
+    await run(config);
+    if (app._openFileInput) app._openFileInput.disabled = true;
+  };
+  const open = app.open.bind(app);
+  app.open = async args => {
+    if (!match || args?.url !== file) return;
+    try { await open(args); }
+    catch (error) {
+      // PDF.js already shows these loading errors. Revocation is handled by
+      // the parent dialog's permission refresh, rather than an unhandled promise.
+      if (!["ResponseException", "InvalidPDFException", "PasswordException", "UnknownErrorException", "AbortException"].includes(error.name)) throw error;
+    }
+  };
+}
+target.addEventListener("webviewerloaded", configureViewer);
+window.addEventListener("pagehide", () => target.removeEventListener("webviewerloaded", configureViewer), {once: true});
+document.addEventListener("drop", event => { event.preventDefault(); event.stopImmediatePropagation(); }, true);