Fusion - the Fusion 360 Bridge

@@ -5798,6 +5798,17 @@ def _seat_sweep_tick():         _close_idle_bridge_docs()     except Exception:         pass+    # A Create-new prompt from ANY route (not just our own EDIT) blocks the main thread.+    # Answer No: it means a name did not exist, and inventing an empty artifact would hide+    # that. Self-contained, like every other section in this sweep.+    try:+        for _d in (classify_blocking_dialogs() or []):+            if _d.get("category") == "create_confirm":+                _unwrap(_ad_call("desktop_ui_click", {"hwnd": _d.get("hwnd"), "name": "No"}, timeout=12))+                print("[Fusion Bridge] janitor: declined a stray Create-new prompt (%s)"+                      % _d.get("matchedOn", "title"))+    except Exception:+        pass   def _seat_resolve_section():@@ -6816,6 +6827,32 @@ def _show_library_view(name, suffix, lbr_path=None):                   % (name, resolved))             name = resolved     edit = _proxy_to_addin("electron_run", {"command": "EDIT %s.%s" % (name, suffix)}, timeout=15)+    # WE MAY NOT HAVE BEEN ABLE TO PRE-CHECK (no libraryPath, nothing remembered, or the+    # library was opened by another route). If Fusion prompted anyway, answer it HERE - a+    # modal we caused must never outlive the call that caused it, and it is holding the main+    # thread hostage while it sits there (John saw this dialog twice, 2026-08-21).+    try:+        _pending = [d for d in (classify_blocking_dialogs() or [])+                    if d.get("category") == "create_confirm"]+        if _pending:+            for _d in _pending:+                _unwrap(_ad_call("desktop_ui_click", {"hwnd": _d.get("hwnd"), "name": "No"}, timeout=12))+            print("[Fusion Bridge] declined a Create-new prompt for %r - the name is not in the "+                  "library (answering Yes would fabricate an empty artifact)" % name)+            return {+                "success": False,+                "error": "No %s named %r in the open library. Fusion offered to CREATE it; the "+                         "bridge declined." % ({"sym": "symbol", "pac": "footprint",+                                                "dev": "device"}.get(suffix, suffix), name),+                "errorCode": "artifact_not_in_library",+                "promptDeclined": True,+                "_hint": ("The prompt was answered (No) inside this call, so nothing is left "+                          "blocking Fusion's main thread. Answering Yes would have created an "+                          "EMPTY artifact and made this look like it worked. Pass libraryPath so "+                          "the bridge can verify names up front and never raise the prompt at all."),+            }+    except Exception:+        pass     if not edit.get("success"):         return {"success": False, "error": "EDIT %s.%s failed: %s" % (name, suffix, edit.get("error")),                 "_hint": ("The name must match the deviceset/artifact inside the OPEN library exactly "@@ -6836,6 +6873,19 @@ def _show_library_view(name, suffix, lbr_path=None):     return out  +def _last_library() -> str:+    """The .lbr we most recently opened, across respawns."""+    if _LAST_LIBRARY[0]:+        return _LAST_LIBRARY[0]+    try:+        return _get_bridge_pref("lastLibraryPath", "") or ""+    except Exception:+        return ""+++_LAST_LIBRARY = [""]          # the .lbr most recently opened by this bridge++ def _show_prepare_library(args, symbol_xml=None, package_xml=None, name=""):     """Open the target library: explicit path, generated wrapper, or already-open. @@ -6856,6 +6906,15 @@ def _show_prepare_library(args, symbol_xml=None, package_xml=None, name=""):         if not opened.get("success"):             return {"success": False, "error": "open_lbr failed: " + str(opened.get("error")),                     "data": {"libraryPath": library_path, "wrapped": bool(wrapped)}}, None+        # REMEMBER IT. The name-only call path ("the library is already open") had no .lbr to+        # check against, so the Create-new guard silently did nothing and the blind EDIT went+        # out anyway - which is why John saw the dialog AGAIN after the first fix. Whatever we+        # last opened IS the library those calls mean.+        _LAST_LIBRARY[0] = library_path+        try:+            _set_bridge_pref("lastLibraryPath", library_path)   # survives a bridge respawn+        except Exception:+            pass     return None, wrapped  @@ -6874,7 +6933,7 @@ def _orchestrate_show_symbol(args: dict) -> dict:     err, wrapped = _show_prepare_library(args, symbol_xml=symbol_xml, name=name)     if err:         return err-    out = _show_library_view(name, "sym", wrapped or (args.get("libraryPath") or "").replace("\\", "/"))+    out = _show_library_view(name, "sym", wrapped or (args.get("libraryPath") or "").replace("\\", "/") or _last_library())     if wrapped and out.get("success"):         out["wrappedLibrary"] = wrapped         out["_hint"] = ("Bare symbol was wrapped in a generated library at %s (a deviceset with one "@@ -6895,7 +6954,7 @@ def _orchestrate_show_footprint(args: dict) -> dict:     err, wrapped = _show_prepare_library(args, package_xml=package_xml, name=name)     if err:         return err-    out = _show_library_view(name, "pac", wrapped or (args.get("libraryPath") or "").replace("\\", "/"))+    out = _show_library_view(name, "pac", wrapped or (args.get("libraryPath") or "").replace("\\", "/") or _last_library())     if wrapped and out.get("success"):         out["wrappedLibrary"] = wrapped         out["_hint"] = "Bare footprint was wrapped in a generated library at " + wrapped + "."