fix: use translated filename as PDF print title

Read Content-Disposition filename from the HTML download response, strip the extension, inject it as <title> before printing. Browser uses <title> as the filename when saving to PDF.
2026-07-13 17:06:14 +08:00
parent c770b7348d
commit 206ef091cc
1 changed files with 13 additions and 1 deletions
--- a/docutranslate/static/index.html
+++ b/docutranslate/static/index.html
@@ -2004,7 +2004,19 @@
                }, 3000);

                const ifr = document.getElementById('printFrame');
-                fetch(url).then(r => r.text()).then(h => {
+                fetch(url).then(r => {
+                    const cd = r.headers.get('content-disposition') || '';
+                    const match = cd.match(/filename[^;=\n]*=['"]?([^'"\n;]+)['"]?/i);
+                    const printTitle = match ? match[1].replace(/\.[^.]+$/, '') : '';
+                    return r.text().then(h => ({ h, printTitle }));
+                }).then(({ h, printTitle }) => {
+                    if (printTitle) {
+                        if (/<title>/i.test(h)) {
+                            h = h.replace(/<title>[^<]*<\/title>/i, `<title>${printTitle}</title>`);
+                        } else {
+                            h = h.replace(/<head>/i, `<head><title>${printTitle}</title>`);
+                        }
+                    }
                    ifr.srcdoc = h;
                    ifr.onload = () => {
                        setTimeout(() => {