fix(org-noter): smart launcher -- auto-select PDF window on SPC o n

config.el

@@ -1234,18 +1234,38 @@ Otherwise: runs interactive ement-connect, then opens rooms after sync."
   :after (:any org pdf-view)
   :config
   (setq org-noter-notes-window-location 'horizontal-split
-        ;; Where to search for and create notes files (same dir as org notes)
+        ;; Directories to search for and create notes files
         org-noter-notes-search-path (list (expand-file-name "notes/" org-directory))
+        ;; Default note file name when creating a new session
+        org-noter-default-notes-file-names '("notes.org")
         ;; Remember last position in PDF across sessions
         org-noter-auto-save-last-location t
-        ;; Insert note at precise location (not just page level)
+        ;; Insert note at precise location, not just page level
         org-noter-insert-note-no-questions nil
-        ;; Always use separate notes file per PDF (cleaner than one big file)
         org-noter-use-indirect-buffer nil))
 
+;; Smart launcher: always start org-noter from the PDF window,
+;; regardless of which window is currently selected.
+;; Fixes: calling SPC o n from an org buffer while PDF is visible in split.
+(defun my/org-noter-smart ()
+  "Start org-noter, auto-selecting the PDF window in the current frame.
+If current buffer is pdf-view-mode: start normally.
+If another visible window shows a PDF: switch to it first, then start.
+Otherwise: run standard org-noter (interactive, prompts for document)."
+  (interactive)
+  (let ((pdf-win (cl-find-if
+                  (lambda (w)
+                    (with-current-buffer (window-buffer w)
+                      (derived-mode-p 'pdf-view-mode)))
+                  (window-list (selected-frame)))))
+    (if pdf-win
+        (with-selected-window pdf-win
+          (org-noter))
+      (org-noter))))
+
 (map! :leader
       (:prefix ("o" . "open")
-       :desc "org-noter"             "n" #'org-noter
+       :desc "org-noter (smart)"     "n" #'my/org-noter-smart
        :desc "org-noter insert note" "N" #'org-noter-insert-note))