Add Save as… menu

rolladecks.scm

@@ -154,39 +154,49 @@
 (define (menubar-callbacks window)
   (let* [(menu-file-exit (qt:find window "actionQuit"))
          (menu-file-save (qt:find window "actionSave"))
+         (menu-file-save-as (qt:find window "actionSaveAs"))
          (menu-file-open (qt:find window "actionOpen"))
          (menu-file-new (qt:find window "actionNew"))]
     ;; We connect to https://doc.qt.io/qt-6/qaction.html#triggered
     ;; Simply kill the program.
-    (if menu-file-exit
+    (when menu-file-exit
       (qt:connect
        menu-file-exit "triggered()"
        (qt:receiver exit)))
-    ;; If they try to Save, tell them it’s not supported.
-    (if menu-file-save
+    ;; If they try to Save, save!
+    (when menu-file-save
       (qt:connect
        menu-file-save "triggered()"
        (qt:receiver
         (lambda ()
           (save-vcard-file window)))))
+    ;; If they try to Save As…, set the current vcard-path, then save!
+    (when menu-file-save-as
+      (qt:connect
+       menu-file-save-as "triggered()"
+       (qt:receiver
+        (lambda ()
+          (let [(new-path (qt:get-save-filename "Save contact as…" (contacts-dir)))]
+            (when (and (string? new-path) (not (string-null? new-path)))
+              (set! *vcard-pathname* new-path)
+              (save-vcard-file window)))
+          (save-vcard-file window)))))
     ;; If they want a new contact, create a new, blank, window.
     ;; That is, a new process.
-    (if menu-file-new
+    (when menu-file-new
       (qt:connect
        menu-file-new "triggered()"
        (qt:receiver create-new-window)))
     ;; If they want to open a contact through the Open… dialogue, we should open
     ;; the contact in a new window.
-    (if menu-file-open
+    (when menu-file-open
       (qt:connect
        menu-file-open "triggered()"
        (qt:receiver
         (lambda ()
-            (let* [(contacts-dir (conc (get-environment-variable "HOME")
-                                       "/Contacts"))
-                   (selected-file (qt:get-open-filename
+          (let* [(selected-file (qt:get-open-filename
                                  "Select a contact file to open…"
-                                   contacts-dir))]
+                                 (contacts-dir)))]
             (if (not (string-null? selected-file))
                 (if *vcard-pathname*
                     (create-new-window selected-file)
@@ -345,6 +355,14 @@
     (when exit-after-message? (exit))))
 
 
+;; Guess the user’s contacts directory, as best we can.
+(define (contacts-dir)
+  (let [(home (get-environment-variable "HOME"))]
+    (if home
+        (conc home "/Contacts")
+        "./")))
+
+
 ;; Set a QT window’s title, suffixing with the program name (Contact).
 (define (set-window-title! window title)
   (set! (qt:property window "windowTitle")