Re: How to restore the layout?

[Juanma Barranquero <lekktu@gmail.com>]

On Mon, Jun 24, 2013 at 10:57 PM, martin rudalics <rudalics@gmx.at> wrote:

> Now could someone also implement the desktop stuff, pretty please?
> (IIUC it's mostly about writing good doc-strings for some trivial
> function changes and defcustoms.)

This is a first cut against 24.3; no docstrings, not tested other than
trivially.

Once window-state-(get|put) do work in the trunk we can try to massage
it into something better.

   J



--- desktop.el.old 2013-01-01 21:37:17.000000000 +0100
+++ desktop.el 2013-06-25 00:45:16.773228800 +0200
@@ -273,6 +273,7 @@

 (defcustom desktop-globals-to-save
   '(desktop-missing-file-warning
+    desktop--window-state
     tags-file-name
     tags-table-list
     search-ring
@@ -358,6 +359,12 @@
   :type '(repeat symbol)
   :group 'desktop)

+(defcustom desktop-save-windows t
+  "When non-nil, save window configuration to desktop file."
+  :type 'boolean
+  :group 'desktop
+  :version "24.4")
+
 (defcustom desktop-file-name-format 'absolute
   "Format in which desktop file names should be saved.
 Possible values are:
@@ -539,6 +546,9 @@
 (defvar desktop-delay-hook nil
   "Hooks run after all buffers are loaded; intended for internal use.")

+(defvar desktop--window-state nil
+  "Internal use only.")
+
 ;; ----------------------------------------------------------------------------
 ;; Desktop file conflict detection
 (defvar desktop-file-modtime nil
@@ -851,8 +861,15 @@
     ((eq desktop-file-name-format 'local) (file-relative-name
filename dirname))
     (t (expand-file-name filename))))

-
 ;; ----------------------------------------------------------------------------
+
+(defun desktop--save-windows ()
+  (setq desktop--window-state
+        (and desktop-save-windows
+             (mapcar (lambda (frame)
+                       (window-state-get (frame-root-window frame) t))
+                     (frame-list)))))
+
 ;;;###autoload
 (defun desktop-save (dirname &optional release)
   "Save the desktop in a desktop file.
@@ -880,6 +897,8 @@
     (desktop-release-lock)
   (unless (and new-modtime (desktop-owner)) (desktop-claim-lock)))

+        (desktop--save-windows)
+
  (with-temp-buffer
   (insert
    ";; -*- mode: emacs-lisp; coding: emacs-mule; -*-\n"
@@ -940,6 +959,13 @@

 (defvar desktop-lazy-timer nil)

+(defun desktop--read-windows ()
+  (when desktop--window-state
+    (window-state-put (car desktop--window-state)
+                      (frame-root-window (selected-frame)))
+    (dolist (state (cdr desktop--window-state))
+      (window-state-put state (frame-root-window (make-frame))))))
+
 ;; ----------------------------------------------------------------------------
 ;;;###autoload
 (defun desktop-read (&optional dirname)
@@ -1009,6 +1035,7 @@
     (switch-to-buffer (car (buffer-list)))
     (run-hooks 'desktop-delay-hook)
     (setq desktop-delay-hook nil)
+            (desktop--read-windows)
     (run-hooks 'desktop-after-read-hook)
     (message "Desktop: %d buffer%s restored%s%s."
      desktop-buffer-ok-count