feat: 发布 v0.4.0 桌面端

apps/web/src/pdf-export.ts

@@ -1,4 +1,7 @@
-import type { ExportConfig } from "@md-to-pdf/core";
+import type {
+  ExportConfig,
+  PagedDocumentPayload
+} from "@md-to-pdf/core";
 
 export interface PdfExportRequest {
   markdown: string;
@@ -129,11 +132,38 @@ export async function requestPdfExport(
   };
 }
 
-export function downloadPdf(blob: Blob, fileName: string) {
+export async function requestDesktopPdfExport(
+  payload: PagedDocumentPayload
+): Promise<PdfExportResult> {
+  const bridge = window.mdToPdfDesktop;
+  if (!bridge) {
+    throw new Error("桌面 PDF 引擎不可用");
+  }
+
+  const result = await bridge.generatePdf(payload);
+  const pdfBytes = Uint8Array.from(result.pdf);
+  return {
+    blob: new Blob([pdfBytes.buffer], { type: "application/pdf" }),
+    fileName: payload.fileName.replace(/\.(md|markdown)$/i, "") + ".pdf",
+    pageCount: result.pageCount,
+    echartsErrorCount: result.echartsErrors.length,
+    mermaidErrorCount: result.mermaidErrors.length
+  };
+}
+
+export async function downloadPdf(blob: Blob, fileName: string) {
+  if (window.mdToPdfDesktop) {
+    return window.mdToPdfDesktop.savePdf(
+      fileName,
+      new Uint8Array(await blob.arrayBuffer())
+    );
+  }
+
   const url = URL.createObjectURL(blob);
   const anchor = document.createElement("a");
   anchor.href = url;
   anchor.download = fileName;
   anchor.click();
   window.setTimeout(() => URL.revokeObjectURL(url), 0);
+  return true;
 }