Keep transfer settings sub-tab after embed soft-reload of manual transfer.

Co-authored-by: Cursor <cursoragent@cursor.com>

lib/common/static/instance_embed.js

@@ -235,9 +235,57 @@
     const parts = [];
     if (qs) parts.push(qs);
     parts.push("embed=1");
+    if (tab === "settings") {
+      try {
+        const st = new URLSearchParams(location.search).get("settings_tab");
+        if (st) parts.push("settings_tab=" + encodeURIComponent(st));
+      } catch (_) {}
+    }
     return url + "?" + parts.join("&");
   }
 
+  function setSettingsSubTabInUrl(key) {
+    if (!key) return;
+    try {
+      const q = new URLSearchParams(location.search);
+      q.set("tab", "settings");
+      q.set("settings_tab", key);
+      q.set("embed", "1");
+      history.replaceState(null, "", "/embed?" + q.toString());
+    } catch (_) {}
+  }
+
+  function activateSettingsSubTab(key) {
+    if (!key) return;
+    setSettingsSubTabInUrl(key);
+    const pane = tabPanes.get("settings") || document;
+    const radio = pane.querySelector(
+      'input.env-tab-radio[data-settings-tab="' + key + '"]'
+    );
+    if (radio) radio.checked = true;
+  }
+
+  function formActionPath(form) {
+    try {
+      return new URL(form.action || "", location.href).pathname.replace(/\/$/, "") || "/";
+    } catch (_) {
+      return "";
+    }
+  }
+
+  function maybeKeepSettingsSubTabAfterForm(form) {
+    const path = formActionPath(form);
+    if (path === "/manual_transfer") {
+      setSettingsSubTabInUrl("transfer");
+      return "transfer";
+    }
+    if (path.indexOf("/api/options/transfer") >= 0 || path.indexOf("/api/options/cross-transfer") >= 0) {
+      setSettingsSubTabInUrl("options_transfer");
+      return "options_transfer";
+    }
+    return "";
+  }
+
   async function fetchTabHtml(tab) {
     const r = await fetch(embedPageUrl(tab), {
       credentials: "same-origin",
@@ -400,14 +448,15 @@
       }
     }
     const fd = new FormData(form);
+    const keepSub = maybeKeepSettingsSubTabAfterForm(form);
     return fetch(form.action, {
       method: form.method || "POST",
       body: fd,
       credentials: "same-origin",
       redirect: "manual",
     })
-      .then(() => reloadCurrentTab())
-      .catch(() => reloadCurrentTab());
+      .then(() => reloadCurrentTab().then(() => activateSettingsSubTab(keepSub)))
+      .catch(() => reloadCurrentTab().then(() => activateSettingsSubTab(keepSub)));
   }
 
   function patchApplyListWindow() {
@@ -466,14 +515,15 @@
         if (CUSTOM_SUBMIT_FORM_IDS.has(form.id)) return;
         ev.preventDefault();
         const fd = new FormData(form);
+        const keepSub = maybeKeepSettingsSubTabAfterForm(form);
         fetch(form.action, {
           method: form.method || "POST",
           body: fd,
           credentials: "same-origin",
           redirect: "manual",
         })
-          .then(() => reloadCurrentTab())
-          .catch(() => reloadCurrentTab());
+          .then(() => reloadCurrentTab().then(() => activateSettingsSubTab(keepSub)))
+          .catch(() => reloadCurrentTab().then(() => activateSettingsSubTab(keepSub)));
       },
       true
     );