;; Free Software Foundation, Inc.
;; Author: Morten Welinder <terra@diku.dk>
+;; Maintainter: Lars Hansen <larsh@math.ku.dk>
;; Keywords: convenience
;; Favourite-brand-of-beer: None, I hate beer.
;; Save window configuration.
;; Recognize more minor modes.
;; Save mark rings.
-;; Start-up with buffer-menu???
;;; Code:
;; We use functions from these modules
;; We can't (require 'mh-e) since that wants to load something.
(mapcar 'require '(info dired reporter)))
+
+(defvar desktop-file-version "206"
+ "Verion number of desktop file format.
+Written into the desktop file and used at desktop read to provide
+backward compatibility.")
+
;; ----------------------------------------------------------------------------
;; USER OPTIONS -- settings you might want to play with.
;; ----------------------------------------------------------------------------
:initialize 'custom-initialize-default
:version "20.3")
-(defcustom desktop-basefilename
+(defcustom desktop-save 'ask-if-new
+ "*When the user changes desktop or quits emacs, should the desktop be saved?
+\(in the current desktop directory)
+ t -- always save.
+ ask -- always ask.
+ ask-if-new -- ask if no desktop file exists, otherwise just save.
+ ask-if-exists -- ask if desktop file exists, otherwise don't save.
+ if-exists -- save if desktop file exists, otherwise don't save.
+ nil -- never save.
+The desktop is never saved when `desktop-enable' is nil."
+ :type '(choice
+ (const :tag "Always save" t)
+ (const :tag "Always ask" ask)
+ (const :tag "Ask if desktop file is new, else do save" ask-if-new)
+ (const :tag "Ask if desktop file exists, else don't save" ask-if-exists)
+ (const :tag "Save if desktop file exists, else don't" if-exists)
+ (const :tag "Never save" nil))
+ :group 'desktop)
+
+(defcustom desktop-base-file-name
(convert-standard-filename ".emacs.desktop")
"File for Emacs desktop, not including the directory name."
:type 'file
:group 'desktop)
+(defvaralias 'desktop-basefilename 'desktop-base-file-name)
+
+(defcustom desktop-path '("." "~")
+ "List of directories to search for the desktop file.
+The base name of the file is specified in `desktop-base-file-name'."
+ :type '(repeat directory)
+ :group 'desktop)
(defcustom desktop-missing-file-warning nil
"*If non-nil then desktop warns when a file no longer exists.
:type 'boolean
:group 'desktop)
-(defvar desktop-globals-to-save
- (list 'desktop-missing-file-warning
- ;; Feature: saving kill-ring implies saving kill-ring-yank-pointer
- ;; 'kill-ring
- 'tags-file-name
- 'tags-table-list
- 'search-ring
- 'regexp-search-ring
- 'register-alist
- ;; 'desktop-globals-to-save ; Itself!
- )
+(defcustom desktop-no-desktop-file-hook nil
+ "Normal hook run after fail of `desktop-read' due to missing desktop file.
+May e.g. be used to show a dired buffer."
+ :type 'hook
+ :group 'desktop)
+
+(defcustom desktop-after-read-hook nil
+ "Normal hook run after a sucessful `desktop-read'.
+May e.g. be used to show a buffer list."
+ :type 'hook
+ :group 'desktop)
+
+(defcustom desktop-save-hook nil
+ "Hook run before desktop saves the state of Emacs.
+This is useful for truncating history lists, for example."
+ :type 'hook
+ :group 'desktop)
+
+(defcustom desktop-globals-to-save '(
+ desktop-missing-file-warning
+ tags-file-name
+ tags-table-list
+ search-ring
+ regexp-search-ring
+ register-alist)
"List of global variables to save when killing Emacs.
An element may be variable name (a symbol)
or a cons cell of the form (VAR . MAX-SIZE),
which means to truncate VAR's value to at most MAX-SIZE elements
-\(if the value is a list) before saving the value.")
-
-(defvar desktop-locals-to-save
- (list 'desktop-locals-to-save ; Itself! Think it over.
- 'truncate-lines
- 'case-fold-search
- 'case-replace
- 'fill-column
- 'overwrite-mode
- 'change-log-default-name
- 'line-number-mode
- )
+\(if the value is a list) before saving the value.
+Feature: Saving `kill-ring' implies saving `kill-ring-yank-pointer'."
+ :type '(repeat (restricted-sexp :match-alternatives (symbolp consp)))
+ :group 'desktop)
+
+(defcustom desktop-globals-to-clear '(
+ kill-ring
+ kill-ring-yank-pointer
+ search-ring
+ search-ring-yank-pointer
+ regexp-search-ring
+ regexp-search-ring-yank-pointer)
+ "List of global variables set to clear by `desktop-clear'.
+An element may be variable name (a symbol) or a cons cell of the form
+\(VAR . FORM). Symbols are set to nil and for cons cells VAR is set
+to the value obtained by evaluateing FORM."
+ :type '(repeat (restricted-sexp :match-alternatives (symbolp consp)))
+ :group 'desktop)
+
+(defcustom desktop-clear-preserve-buffers-regexp
+ "^\\*tramp/.+\\*$"
+ "Regexp identifying buffers that `desktop-clear' should not delete."
+ :type 'regexp
+ :group 'desktop)
+
+;; Maintained for backward compatibility
+(defcustom desktop-clear-preserve-buffers
+ '("*scratch*" "*Messages*")
+ "*List of buffer names that `desktop-clear' should not delete."
+ :type '(repeat string)
+ :group 'desktop)
+
+(defvar desktop-locals-to-save '(
+ desktop-locals-to-save ; Itself! Think it over.
+ truncate-lines
+ case-fold-search
+ case-replace
+ fill-column
+ overwrite-mode
+ change-log-default-name
+ line-number-mode)
"List of local variables to save for each buffer.
The variables are saved only when they really are local.")
(make-variable-buffer-local 'desktop-locals-to-save)
;; (ftp) files because they require passwords and whatnot.
;; TAGS files to save time (tags-file-name is saved instead).
(defcustom desktop-buffers-not-to-save
- "\\(^nn\\.a[0-9]+\\|\\.log\\|(ftp)\\|^tags\\|^TAGS\\)$"
- "Regexp identifying buffers that are to be excluded from saving."
- :type 'regexp
- :group 'desktop)
+ "\\(^nn\\.a[0-9]+\\|\\.log\\|(ftp)\\|^tags\\|^TAGS\\)$"
+ "Regexp identifying buffers that are to be excluded from saving."
+ :type 'regexp
+ :group 'desktop)
;; Skip ange-ftp files
(defcustom desktop-files-not-to-save
:type '(repeat symbol)
:group 'desktop)
-(defcustom desktop-buffer-major-mode nil
- "When desktop creates a buffer, this holds the desired Major mode."
- :type 'symbol
- :group 'desktop)
-
-(defcustom desktop-buffer-file-name nil
- "When desktop creates a buffer, this holds the file name to visit."
- :type '(choice file (const nil))
+(defcustom desktop-file-name-format 'absolute
+ "*Format in which desktop file names should be saved.
+Possible values are:
+ absolute -- Absolute file name.
+ tilde -- Relative to ~.
+ local -- Relative to directory of desktop file."
+ :type '(choice (const absolute) (const tilde) (const local))
:group 'desktop)
-(defcustom desktop-buffer-name nil
- "When desktop creates a buffer, this holds the desired buffer name."
- :type '(choice string (const nil))
- :group 'desktop)
-
-(defvar desktop-buffer-misc nil
- "When desktop creates a buffer, this holds a list of misc info.
-It is used by the `desktop-buffer-handlers' functions.")
-
(defcustom desktop-buffer-misc-functions
'(desktop-buffer-info-misc-data
desktop-buffer-dired-misc-data)
returns non-nil, its value is saved along with the desktop buffer for
which it was called; no further functions will be called.
+File names should formatted using the call
+\"(desktop-file-name FILE-NAME dirname)\".
+
Later, when desktop.el restores the buffers it has saved, each of the
`desktop-buffer-handlers' functions will have access to a buffer local
variable, named `desktop-buffer-misc', whose value is what the
desktop-buffer-file)
"*List of functions to call in order to create a buffer.
The functions are called without explicit parameters but can use the
-variables `desktop-buffer-major-mode', `desktop-buffer-file-name',
-`desktop-buffer-name'.
+following variables:
+
+ desktop-file-version
+ desktop-buffer-file-name
+ desktop-buffer-name
+ desktop-buffer-major-mode
+ desktop-buffer-minor-modes
+ desktop-buffer-point
+ desktop-buffer-mark
+ desktop-buffer-read-only
+ desktop-buffer-misc
+ desktop-buffer-locals
+
If one function returns non-nil, no further functions are called.
-If the function returns t then the buffer is considered created."
+If the function returns a buffer, then the saved mode settings
+and variable values for that buffer are copied into it."
:type '(repeat function)
:group 'desktop)
(put 'desktop-buffer-handlers 'risky-local-variable t)
-(defvar desktop-create-buffer-form "(desktop-create-buffer 205"
- "Opening of form for creation of new buffers.")
-
-(defcustom desktop-save-hook nil
- "Hook run before desktop saves the state of Emacs.
-This is useful for truncating history lists, for example."
- :type 'hook
- :group 'desktop)
-
(defcustom desktop-minor-mode-table
'((auto-fill-function auto-fill-mode)
(vc-mode nil))
(let ((here (nthcdr (1- n) l)))
(if (consp here)
(setcdr here nil))))
-;; ----------------------------------------------------------------------------
-(defcustom desktop-clear-preserve-buffers
- '("*scratch*" "*Messages*")
- "*Buffer names that `desktop-clear' should not delete."
- :type '(repeat string)
- :group 'desktop)
+;; ----------------------------------------------------------------------------
(defun desktop-clear ()
"Empty the Desktop.
-This kills all buffers except for internal ones
-and those listed in `desktop-clear-preserve-buffers'."
+This kills all buffers except for internal ones and those listed
+in `desktop-clear-preserve-buffers'. Furthermore, it clears the
+variables listed in `desktop-globals-to-clear'."
(interactive)
- (setq kill-ring nil
- kill-ring-yank-pointer nil
- search-ring nil
- search-ring-yank-pointer nil
- regexp-search-ring nil
- regexp-search-ring-yank-pointer nil)
+ (dolist (var desktop-globals-to-clear)
+ (if (symbolp var)
+ (eval `(setq-default ,var nil))
+ (eval `(setq-default ,(car var) ,(cdr var)))))
(let ((buffers (buffer-list)))
(while buffers
- (or (member (buffer-name (car buffers)) desktop-clear-preserve-buffers)
- (null (buffer-name (car buffers)))
- ;; Don't kill buffers made for internal purposes.
- (and (not (equal (buffer-name (car buffers)) ""))
- (eq (aref (buffer-name (car buffers)) 0) ?\ ))
- (kill-buffer (car buffers)))
+ (let ((bufname (buffer-name (car buffers))))
+ (or
+ (null bufname)
+ (string-match desktop-clear-preserve-buffers-regexp bufname)
+ (member bufname desktop-clear-preserve-buffers)
+ ;; Don't kill buffers made for internal purposes.
+ (and (not (equal bufname "")) (eq (aref bufname 0) ?\ ))
+ (kill-buffer (car buffers))))
(setq buffers (cdr buffers))))
(delete-other-windows))
+
;; ----------------------------------------------------------------------------
(add-hook 'kill-emacs-hook 'desktop-kill)
(defun desktop-kill ()
- (if desktop-dirname
- (condition-case err
- (desktop-save desktop-dirname)
- (file-error
- (if (yes-or-no-p "Error while saving the desktop. Quit anyway? ")
- nil
- (signal (car err) (cdr err)))))))
+ "If `desktop-enable' is non-nil, do what `desktop-save' says to do.
+If the desktop should be saved and `desktop-dirname'
+is nil, ask the user where to save the desktop."
+ (when
+ (and
+ desktop-enable
+ (let ((exists (file-exists-p (expand-file-name desktop-base-file-name desktop-dirname))))
+ (or
+ (eq desktop-save 't)
+ (and exists (memq desktop-save '(ask-if-new if-exists)))
+ (and
+ (or
+ (memq desktop-save '(ask ask-if-new))
+ (and exists (eq desktop-save 'ask-if-exists)))
+ (y-or-n-p "Save desktop? ")))))
+ (unless desktop-dirname
+ (setq desktop-dirname
+ (file-name-as-directory
+ (expand-file-name
+ (call-interactively
+ (lambda (dir) (interactive "DDirectory for desktop file: ") dir))))))
+ (condition-case err
+ (desktop-save desktop-dirname)
+ (file-error
+ (unless (yes-or-no-p "Error while saving the desktop. Ignore? ")
+ (signal (car err) (cdr err)))))))
+
;; ----------------------------------------------------------------------------
(defun desktop-list* (&rest args)
(if (null (cdr args))
(setq args (cdr args)))
value)))
+;; ----------------------------------------------------------------------------
(defun desktop-internal-v2s (val)
"Convert VALUE to a pair (QUOTE . TXT); (eval (read TXT)) gives VALUE.
TXT is a string that when read and evaluated yields value.
(t ; save as text
(cons 'may "\"Unprintable entity\""))))
+;; ----------------------------------------------------------------------------
(defun desktop-value-to-string (val)
"Convert VALUE to a string that when read evaluates to the same value.
Not all types of values are supported."
(if (eq quote 'must)
(concat "'" txt)
txt)))
+
;; ----------------------------------------------------------------------------
(defun desktop-outvar (varspec)
"Output a setq statement for variable VAR to the desktop file.
" "
(desktop-value-to-string (symbol-value var))
")\n")))))
+
;; ----------------------------------------------------------------------------
(defun desktop-save-buffer-p (filename bufname mode &rest dummy)
"Return t if the desktop should record a particular buffer for next startup.
default-directory))))
(and (null filename)
(memq mode desktop-buffer-modes-to-save))))))
+
+;; ----------------------------------------------------------------------------
+(defun desktop-file-name (filename dirname)
+ "Convert FILENAME to format specified in `desktop-file-name-format'.
+DIRNAME must be the directory in which the desktop file will be saved."
+ (cond
+ ((not filename) nil)
+ ((eq desktop-file-name-format 'tilde)
+ (let ((relative-name (file-relative-name (expand-file-name filename) "~")))
+ (cond
+ ((file-name-absolute-p relative-name) relative-name)
+ ((string= "./" relative-name) "~/")
+ ((string= "." relative-name) "~")
+ (t (concat "~/" relative-name)))))
+ ((eq desktop-file-name-format 'local) (file-relative-name filename dirname))
+ (t (expand-file-name filename))))
+
;; ----------------------------------------------------------------------------
(defun desktop-save (dirname)
- "Save the Desktop file. Parameter DIRNAME specifies where to save desktop."
+ "Save the Desktop file. Parameter DIRNAME specifies where to save desktop."
(interactive "DDirectory to save desktop file in: ")
(run-hooks 'desktop-save-hook)
+ (setq dirname (file-name-as-directory (expand-file-name dirname)))
(save-excursion
- (let ((filename (expand-file-name desktop-basefilename dirname))
- (info (nreverse
- (mapcar
- (function
- (lambda (b)
- (set-buffer b)
- (list
- (buffer-file-name)
- (buffer-name)
- major-mode
- ;; minor modes
- (let (ret)
- (mapcar
- #'(lambda (mim)
- (and (boundp mim)
- (symbol-value mim)
- (setq ret
- (cons (let ((special (assq mim desktop-minor-mode-table)))
- (if special
- (cadr special)
- mim))
- ret))))
- (mapcar #'car minor-mode-alist))
- ret)
- (point)
- (list (mark t) mark-active)
- buffer-read-only
- (run-hook-with-args-until-success
- 'desktop-buffer-misc-functions)
- (let ((locals desktop-locals-to-save)
- (loclist (buffer-local-variables))
- (ll))
- (while locals
- (let ((here (assq (car locals) loclist)))
- (if here
- (setq ll (cons here ll))
- (if (member (car locals) loclist)
- (setq ll (cons (car locals) ll)))))
- (setq locals (cdr locals)))
- ll)
- )))
- (buffer-list))))
- (buf (get-buffer-create "*desktop*")))
+ (let ((filename (expand-file-name desktop-base-file-name dirname))
+ (info
+ (mapcar
+ (function
+ (lambda (b)
+ (set-buffer b)
+ (list
+ (desktop-file-name (buffer-file-name) dirname)
+ (buffer-name)
+ major-mode
+ ;; minor modes
+ (let (ret)
+ (mapcar
+ #'(lambda (mim)
+ (and
+ (boundp mim)
+ (symbol-value mim)
+ (setq ret
+ (cons
+ (let ((special (assq mim desktop-minor-mode-table)))
+ (if special (cadr special) mim))
+ ret))))
+ (mapcar #'car minor-mode-alist))
+ ret)
+ (point)
+ (list (mark t) mark-active)
+ buffer-read-only
+ (run-hook-with-args-until-success 'desktop-buffer-misc-functions)
+ (let ((locals desktop-locals-to-save)
+ (loclist (buffer-local-variables))
+ (ll))
+ (while locals
+ (let ((here (assq (car locals) loclist)))
+ (if here
+ (setq ll (cons here ll))
+ (when (member (car locals) loclist)
+ (setq ll (cons (car locals) ll)))))
+ (setq locals (cdr locals)))
+ ll))))
+ (buffer-list)))
+ (buf (get-buffer-create "*desktop*")))
(set-buffer buf)
(erase-buffer)
- (insert ";; -*- coding: utf-8-emacs; -*-\n"
- desktop-header
- ";; Created " (current-time-string) "\n"
- ";; Emacs version " emacs-version "\n\n"
- ";; Global section:\n")
+ (insert
+ ";; -*- coding: utf-8-emacs; -*-\n"
+ desktop-header
+ ";; Created " (current-time-string) "\n"
+ ";; Desktop file format version " desktop-file-version "\n"
+ ";; Emacs version " emacs-version "\n\n"
+ ";; Global section:\n")
(mapcar (function desktop-outvar) desktop-globals-to-save)
(if (memq 'kill-ring desktop-globals-to-save)
- (insert "(setq kill-ring-yank-pointer (nthcdr "
- (int-to-string
- (- (length kill-ring) (length kill-ring-yank-pointer)))
- " kill-ring))\n"))
+ (insert
+ "(setq kill-ring-yank-pointer (nthcdr "
+ (int-to-string (- (length kill-ring) (length kill-ring-yank-pointer)))
+ " kill-ring))\n"))
- (insert "\n;; Buffer section:\n")
+ (insert "\n;; Buffer section -- buffers listed in same order as in buffer list:\n")
(mapcar
- (function (lambda (l)
- (if (apply 'desktop-save-buffer-p l)
- (progn
- (insert desktop-create-buffer-form)
- (mapcar
- (function (lambda (e)
- (insert "\n "
- (desktop-value-to-string e))))
- l)
- (insert ")\n\n")))))
- info)
+ (function
+ (lambda (l)
+ (if (apply 'desktop-save-buffer-p l)
+ (progn
+ (insert "(desktop-create-buffer " desktop-file-version)
+ (mapcar
+ (function
+ (lambda (e)
+ (insert "\n " (desktop-value-to-string e))))
+ l)
+ (insert ")\n\n")))))
+ info)
(setq default-directory dirname)
- (if (file-exists-p filename) (delete-file filename))
+ (when (file-exists-p filename) (delete-file filename))
(let ((coding-system-for-write 'utf-8-emacs))
- (write-region (point-min) (point-max) filename nil 'nomessage))))
+ (write-region (point-min) (point-max) filename nil 'nomessage))))
(setq desktop-dirname dirname))
+
;; ----------------------------------------------------------------------------
(defun desktop-remove ()
"Delete the Desktop file and inactivate the desktop system."
(interactive)
(if desktop-dirname
- (let ((filename (concat desktop-dirname desktop-basefilename)))
- (setq desktop-dirname nil)
- (if (file-exists-p filename)
- (delete-file filename)))))
+ (let ((filename (expand-file-name desktop-base-file-name desktop-dirname)))
+ (setq desktop-dirname nil)
+ (if (file-exists-p filename)
+ (delete-file filename)))))
;; ----------------------------------------------------------------------------
;;;###autoload
(defun desktop-read ()
"Read the Desktop file and the files it specifies.
-This is a no-op when Emacs is running in batch mode."
+This is a no-op when Emacs is running in batch mode.
+Look for the desktop file according to the variables `desktop-base-file-name'
+and `desktop-path'. If no desktop file is found, clear the desktop.
+Returns t if it has read a desktop file, nil otherwise."
(interactive)
- (if noninteractive
- nil
- (let ((dirs '("./" "~/")))
- (while (and dirs
- (not (file-exists-p (expand-file-name
- desktop-basefilename
- (car dirs)))))
- (setq dirs (cdr dirs)))
- (setq desktop-dirname (and dirs (expand-file-name (car dirs))))
+ (unless noninteractive
+ (let ((dirs desktop-path))
+ (while
+ (and
+ dirs
+ (not
+ (file-exists-p (expand-file-name desktop-base-file-name (car dirs)))))
+ (setq dirs (cdr dirs)))
+ (setq desktop-dirname (and dirs (file-name-as-directory (expand-file-name (car dirs)))))
(if desktop-dirname
- (let ((desktop-last-buffer nil))
- ;; `load-with-code-conversion' calls `eval-buffer' which
- ;; contains a `save-excursion', so we end up with the same
- ;; buffer before and after the load. This is a problem
- ;; when the desktop is read initially when Emacs starts up
- ;; because, if we still are in *scratch* after running
- ;; `after-init-hook', the splash screen will be displayed.
- (load (expand-file-name desktop-basefilename desktop-dirname)
- t t t)
- (when desktop-last-buffer
- (switch-to-buffer desktop-last-buffer))
- (run-hooks 'desktop-delay-hook)
- (setq desktop-delay-hook nil)
- (message "Desktop loaded."))
- (desktop-clear)))))
+ (let ((desktop-first-buffer nil))
+ ;; Evaluate desktop buffer.
+ (load (expand-file-name desktop-base-file-name desktop-dirname) t t t)
+ ;; `desktop-create-buffer' puts buffers at end of the buffer list.
+ ;; We want buffers existing prior to evaluating the desktop (and not reused)
+ ;; to be placed at the end of the buffer list, so we move them here.
+ (mapcar 'bury-buffer
+ (nreverse (cdr (memq desktop-first-buffer (nreverse (buffer-list))))))
+ (switch-to-buffer (car (buffer-list)))
+ (run-hooks 'desktop-delay-hook)
+ (setq desktop-delay-hook nil)
+ (run-hooks 'desktop-after-read-hook)
+ (message "Desktop loaded.")
+ t)
+ (desktop-clear)
+ (run-hooks 'desktop-no-desktop-file-hook)
+ (message "No desktop file.")
+ nil))))
+
;; ----------------------------------------------------------------------------
;;;###autoload
(defun desktop-load-default ()
(progn
(load "default" t t)
(setq inhibit-default-init t))))
+
+;; ----------------------------------------------------------------------------
+;;;###autoload
+(defun desktop-change-dir (dir)
+ "Save and clear the desktop, then load the desktop from directory DIR.
+However, if `desktop-enable' was nil at call, don't save the old desktop.
+This function always sets `desktop-enable' to t."
+ (interactive "DNew directory: ")
+ (setq dir (file-name-as-directory (expand-file-name dir desktop-dirname)))
+ (desktop-kill)
+ (desktop-clear)
+ (setq desktop-enable t)
+ (let ((desktop-path (list dir))
+ (default-directory dir))
+ (desktop-read))
+ ;; Set `desktop-dirname' even in no desktop file was found
+ (setq desktop-dirname dir))
+ ;; ----------------------------------------------------------------------------
+;;;###autoload
+(defun desktop-save-in-load-dir ()
+ "Save desktop in directory from which it was loaded."
+ (interactive)
+ (if desktop-dirname
+ (desktop-save desktop-dirname)
+ (call-interactively 'desktop-save))
+ (message "Desktop saved in %s" desktop-dirname))
+
+;; ----------------------------------------------------------------------------
+;;;###autoload
+(defun desktop-revert ()
+ "Revert to the last loaded desktop."
+ (interactive)
+ (unless desktop-dirname (error "No desktop has been loaded"))
+ (setq desktop-enable nil)
+ (desktop-change-dir desktop-dirname))
+
;; ----------------------------------------------------------------------------
;; Note: the following functions use the dynamic variable binding in Lisp.
;;
+
+(eval-when-compile ; Just to silence the byte compiler
+ (defvar desktop-file-version)
+ (defvar desktop-buffer-file-name)
+ (defvar desktop-buffer-name)
+ (defvar desktop-buffer-major-mode)
+ (defvar desktop-buffer-minor-modes)
+ (defvar desktop-buffer-point)
+ (defvar desktop-buffer-mark)
+ (defvar desktop-buffer-read-only)
+ (defvar desktop-buffer-misc)
+ (defvar desktop-buffer-locals)
+)
+
(defun desktop-buffer-info-misc-data ()
(if (eq major-mode 'Info-mode)
(list Info-current-file
Info-current-node)))
+;; ----------------------------------------------------------------------------
(defun desktop-buffer-dired-misc-data ()
- (if (eq major-mode 'dired-mode)
- (cons
- (expand-file-name dired-directory)
- (cdr
- (nreverse
- (mapcar
- (function car)
- dired-subdir-alist))))))
+ (when (eq major-mode 'dired-mode)
+ (eval-when-compile (defvar dirname))
+ (cons
+ ;; Value of `dired-directory'.
+ (if (consp dired-directory)
+ ;; Directory name followed by list of files.
+ (cons (desktop-file-name (car dired-directory) dirname) (cdr dired-directory))
+ ;; Directory name, optionally with with shell wildcard.
+ (desktop-file-name dired-directory dirname))
+ ;; Subdirectories in `dired-subdir-alist'.
+ (cdr
+ (nreverse
+ (mapcar
+ (function (lambda (f) (desktop-file-name (car f) dirname)))
+ dired-subdir-alist))))))
+;; ----------------------------------------------------------------------------
(defun desktop-buffer-info () "Load an info file."
(if (eq 'Info-mode desktop-buffer-major-mode)
(progn
(second (nth 1 desktop-buffer-misc)))
(when (and first second)
(require 'info)
- (Info-find-node first second)
+ (with-no-warnings
+ (Info-find-node first second))
(current-buffer))))))
+
;; ----------------------------------------------------------------------------
+(eval-when-compile (defvar rmail-buffer)) ; Just to silence the byte compiler.
(defun desktop-buffer-rmail () "Load an RMAIL file."
(if (eq 'rmail-mode desktop-buffer-major-mode)
(condition-case error
(file-locked
(kill-buffer (current-buffer))
'ignored))))
+
;; ----------------------------------------------------------------------------
(defun desktop-buffer-mh () "Load a folder in the mh system."
(if (eq 'mh-folder-mode desktop-buffer-major-mode)
- (progn
- (require 'mh-e)
+ (with-no-warnings
(mh-find-path)
(mh-visit-folder desktop-buffer-name)
(current-buffer))))
+
;; ----------------------------------------------------------------------------
(defun desktop-buffer-dired () "Load a directory using dired."
(if (eq 'dired-mode desktop-buffer-major-mode)
- (if (file-directory-p (file-name-directory (car desktop-buffer-misc)))
- (progn
- (dired (car desktop-buffer-misc))
- (mapcar 'dired-maybe-insert-subdir (cdr desktop-buffer-misc))
- (current-buffer))
- (message "Directory %s no longer exists." (car desktop-buffer-misc))
- (sit-for 1)
- 'ignored)))
+ ;; First element of `desktop-buffer-misc' is the value of `dired-directory'.
+ ;; This value is a directory name, optionally with with shell wildcard or
+ ;; a directory name followed by list of files.
+ (let* ((dired-directory (car desktop-buffer-misc))
+ (dir (if (consp dired-directory) (car dired-directory) dired-directory)))
+ (if (file-directory-p (file-name-directory dir))
+ (progn
+ (dired dired-directory)
+ (mapcar 'dired-maybe-insert-subdir (cdr desktop-buffer-misc))
+ (current-buffer))
+ (message "Directory %s no longer exists." dir)
+ (sit-for 1)
+ 'ignored))))
+
;; ----------------------------------------------------------------------------
-(defun desktop-buffer-file () "Load a file."
+(defun desktop-buffer-file ()
+ "Load a file."
(if desktop-buffer-file-name
(if (or (file-exists-p desktop-buffer-file-name)
(and desktop-missing-file-warning
(let ((buf (find-file-noselect desktop-buffer-file-name)))
(condition-case nil
(switch-to-buffer buf)
- (error (pop-to-buffer buf))))
+ (error (pop-to-buffer buf)))
+ (and (not (eq major-mode desktop-buffer-major-mode))
+ (functionp desktop-buffer-major-mode)
+ (funcall desktop-buffer-major-mode))
+ buf)
'ignored)))
+
;; ----------------------------------------------------------------------------
;; Create a buffer, load its file, set is mode, ...; called from Desktop file
;; only.
-(defvar desktop-last-buffer nil
- "Last buffer read. Dynamically bound in `desktop-read'.")
-
-(defun desktop-create-buffer (ver desktop-buffer-file-name desktop-buffer-name
- desktop-buffer-major-mode
- mim pt mk ro desktop-buffer-misc
- &optional locals)
- (let ((hlist desktop-buffer-handlers)
- (result)
- (handler))
- (while (and (not result) hlist)
- (setq handler (car hlist))
- (setq result (funcall handler))
- (setq hlist (cdr hlist)))
- (when (bufferp result)
- (setq desktop-last-buffer result)
- (set-buffer result)
- (if (not (equal (buffer-name) desktop-buffer-name))
- (rename-buffer desktop-buffer-name))
- ;; minor modes
- (cond ((equal '(t) mim) (auto-fill-mode 1)) ; backwards compatible
- ((equal '(nil) mim) (auto-fill-mode 0))
- (t (mapcar #'(lambda (minor-mode)
- (when (functionp minor-mode)
- (funcall minor-mode 1)))
- mim)))
- (goto-char pt)
- (if (consp mk)
- (progn
- (set-mark (car mk))
- (setq mark-active (car (cdr mk))))
- (set-mark mk))
- ;; Never override file system if the file really is read-only marked.
- (if ro (setq buffer-read-only ro))
- (while locals
- (let ((this (car locals)))
- (if (consp this)
- ;; an entry of this form `(symbol . value)'
- (progn
- (make-local-variable (car this))
- (set (car this) (cdr this)))
- ;; an entry of the form `symbol'
- (make-local-variable this)
- (makunbound this)))
- (setq locals (cdr locals))))))
+(eval-when-compile ; Just to silence the byte compiler
+ (defvar desktop-first-buffer) ;; Dynamically bound in `desktop-read'
+)
+
+(defun desktop-create-buffer (
+ desktop-file-version
+ desktop-buffer-file-name
+ desktop-buffer-name
+ desktop-buffer-major-mode
+ desktop-buffer-minor-modes
+ desktop-buffer-point
+ desktop-buffer-mark
+ desktop-buffer-read-only
+ desktop-buffer-misc
+ &optional
+ desktop-buffer-locals)
+ ;; To make desktop files with relative file names possible, we cannot
+ ;; allow `default-directory' to change. Therefore we save current buffer.
+ (save-current-buffer
+ (let (
+ (buffer-list (buffer-list))
+ (hlist desktop-buffer-handlers)
+ (result)
+ (handler)
+ )
+ ;; Call desktop-buffer-handlers to create buffer.
+ (while (and (not result) hlist)
+ (setq handler (car hlist))
+ (setq result (funcall handler))
+ (setq hlist (cdr hlist)))
+ (unless (bufferp result) (setq result nil))
+ ;; Restore buffer list order with new buffer at end. Don't change
+ ;; the order for old desktop files (old desktop module behaviour).
+ (unless (< desktop-file-version 206)
+ (mapcar 'bury-buffer buffer-list)
+ (when result (bury-buffer result)))
+ (when result
+ (unless (or desktop-first-buffer (< desktop-file-version 206))
+ (setq desktop-first-buffer result))
+ (set-buffer result)
+ (unless (equal (buffer-name) desktop-buffer-name)
+ (rename-buffer desktop-buffer-name))
+ ;; minor modes
+ (cond (
+ ;; backwards compatible
+ (equal '(t) desktop-buffer-minor-modes)
+ (auto-fill-mode 1))(
+ (equal '(nil) desktop-buffer-minor-modes)
+ (auto-fill-mode 0))(
+ t
+ (mapcar
+ #'(lambda (minor-mode)
+ (when (functionp minor-mode) (funcall minor-mode 1)))
+ desktop-buffer-minor-modes)))
+ ;; Even though point and mark are non-nil when written by `desktop-save'
+ ;; they may be modified by handlers wanting to set point or mark themselves.
+ (when desktop-buffer-point (goto-char desktop-buffer-point))
+ (when desktop-buffer-mark
+ (if (consp desktop-buffer-mark)
+ (progn
+ (set-mark (car desktop-buffer-mark))
+ (setq mark-active (car (cdr desktop-buffer-mark))))
+ (set-mark desktop-buffer-mark)))
+ ;; Never override file system if the file really is read-only marked.
+ (if desktop-buffer-read-only (setq buffer-read-only desktop-buffer-read-only))
+ (while desktop-buffer-locals
+ (let ((this (car desktop-buffer-locals)))
+ (if (consp this)
+ ;; an entry of this form `(symbol . value)'
+ (progn
+ (make-local-variable (car this))
+ (set (car this) (cdr this)))
+ ;; an entry of the form `symbol'
+ (make-local-variable this)
+ (makunbound this)))
+ (setq desktop-buffer-locals (cdr desktop-buffer-locals)))))))
+;; ----------------------------------------------------------------------------
;; Backward compatibility -- update parameters to 205 standards.
(defun desktop-buffer (desktop-buffer-file-name desktop-buffer-name
desktop-buffer-major-mode
(cons 'case-fold-search cfs)
(cons 'case-replace cr)
(cons 'overwrite-mode (car mim)))))
-;; ----------------------------------------------------------------------------
-;; If the user set desktop-enable to t with Custom,
-;; do the rest of what it takes to use desktop,
-;; but do it after finishing loading the init file.
-(add-hook 'after-init-hook
- '(lambda ()
- (when desktop-enable
- (desktop-load-default)
- (desktop-read))))
+;; ----------------------------------------------------------------------------
+;; When `desktop-enable' is non-nil and "--no-desktop" is not specified on the
+;; command line, we do the rest of what it takes to use desktop, but do it
+;; after finishing loading the init file.
+;; We cannot use `command-switch-alist' to process "--no-desktop" because these
+;; functions are processed after `after-init-hook'.
+(add-hook
+ 'after-init-hook
+ '(lambda ()
+ (let ((key "--no-desktop"))
+ (if (member key command-line-args)
+ (delete key command-line-args)
+ (when desktop-enable
+ (desktop-load-default)
+ (desktop-read))))))
(provide 'desktop)