Open bot files in a preview modal instead of a new tab

Markdown rendered, CSV/TSV as a table, images, PDFs, audio, video and sandboxed HTML in place, other text as code, with Download and Open in a new tab. Used by file chips, message attachments, the files modal, task files and the files browser. Co-Authored-By: Claude Opus 5.5 <[email protected]>
2026-10-28 19:25:49 +01:00
parent 521c2bbac0
commit faa554d5e3
26 changed files with 960 additions and 42 deletions
@@ -0,0 +1,50 @@
+import Loading from "@moduletrace/twui/elements/Loading";
+import Stack from "@moduletrace/twui/layout/Stack";
+import useFileText from "@/src/hooks/use-file-text";
+import formatBytes from "@/src/utils/format-bytes";
+import { AppData } from "@/src/data/app-data";
+import type { FilePreviewKind } from "@/src/utils/file-preview-kind";
+import FilePreviewCode from "./file-preview-code";
+import FilePreviewMarkdown from "./file-preview-markdown";
+import FilePreviewNotice from "./file-preview-notice";
+import FilePreviewTable from "./file-preview-table";
+
+type Props = {
+    kind: FilePreviewKind;
+    url: string;
+    size?: number;
+};
+
+/**
+ * A text file read into the preview: markdown rendered, CSV or TSV as a
+ * table, anything else as code.
+ */
+export default function FilePreviewText({ kind, url, size }: Props) {
+    const { text, loading, error, too_large } = useFileText({ url, size });
+
+    if (loading) {
+        return (
+            <Stack className="grow w-full items-center justify-center">
+                <Loading />
+            </Stack>
+        );
+    }
+
+    if (too_large) {
+        return (
+            <FilePreviewNotice
+                message={`This file is bigger than ${formatBytes({ bytes: AppData.FilePreviewMaxTextBytes })}, too big to preview. Download it to open it.`}
+            />
+        );
+    }
+
+    if (error || text == null) {
+        return <FilePreviewNotice message={error || "The file couldn't be read."} />;
+    }
+
+    if (kind == "markdown") return <FilePreviewMarkdown text={text} />;
+    if (kind == "csv") return <FilePreviewTable text={text} delimiter="," />;
+    if (kind == "tsv") return <FilePreviewTable text={text} delimiter={"\t"} />;
+
+    return <FilePreviewCode text={text} />;
+}