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wp-includes/js/dist/script-modules/block-library/file/view.js

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+// packages/block-library/build-module/file/view.mjs
+import { store } from "@wordpress/interactivity";
+
+// packages/block-library/build-module/file/utils/index.mjs
+var browserSupportsPdfs = () => {
+  if (window.navigator.pdfViewerEnabled) {
+    return true;
+  }
+  if (window.navigator.userAgent.indexOf("Mobi") > -1) {
+    return false;
+  }
+  if (window.navigator.userAgent.indexOf("Android") > -1) {
+    return false;
+  }
+  if (window.navigator.userAgent.indexOf("Macintosh") > -1 && window.navigator.maxTouchPoints && window.navigator.maxTouchPoints > 2) {
+    return false;
+  }
+  if (!!(window.ActiveXObject || "ActiveXObject" in window) && !(createActiveXObject("AcroPDF.PDF") || createActiveXObject("PDF.PdfCtrl"))) {
+    return false;
+  }
+  return true;
+};
+var createActiveXObject = (type) => {
+  let ax;
+  try {
+    ax = new window.ActiveXObject(type);
+  } catch (e) {
+    ax = void 0;
+  }
+  return ax;
+};
+
+// packages/block-library/build-module/file/view.mjs
+store(
+  "core/file",
+  {
+    state: {
+      get hasPdfPreview() {
+        return browserSupportsPdfs();
+      }
+    }
+  },
+  { lock: true }
+);