* wl-vars.el (wl-message-use-header-narrowing): New user option.
[elisp/wanderlust.git] / wl / wl-summary.el
index 3cc4b96..476b6f7 100644 (file)
 (defvar wl-summary-buffer-mode-line nil)
 (defvar wl-summary-buffer-display-mime-mode 'mime)
 (defvar wl-summary-buffer-display-header-mode 'partial)
-(defvar wl-summary-buffer-event-handler nil)
 
 (defvar wl-thread-indent-level-internal nil)
 (defvar wl-thread-have-younger-brother-str-internal nil)
 (make-variable-buffer-local 'wl-summary-buffer-mode-line)
 (make-variable-buffer-local 'wl-summary-buffer-display-mime-mode)
 (make-variable-buffer-local 'wl-summary-buffer-display-header-mode)
-(make-variable-buffer-local 'wl-summary-buffer-event-handler)
 
 (defvar wl-datevec)
 (defvar wl-thr-indent-string)
@@ -649,66 +647,56 @@ See also variable `wl-use-petname'."
        'nomini frame))))
 
 ;; Handler of event from elmo-folder
-(eval-and-compile
-  (luna-define-class wl-summary-event-handler (elmo-event-handler)
-                    (buffer))
-  (luna-define-internal-accessors 'wl-summary-event-handler))
-
-(luna-define-method elmo-event-handler-flag-changed ((handler
-                                                     wl-summary-event-handler)
-                                                    numbers)
+(defun wl-summary-update-persistent-mark-on-event (buffer numbers)
   (save-excursion
-    (set-buffer (wl-summary-event-handler-buffer-internal handler))
-    (let ((window-list (get-buffer-window-list (current-buffer) 'nomini t))
-         invalidate)
+    (set-buffer buffer)
+    (if wl-summary-lazy-update-mark
+       (let ((window-list (get-buffer-window-list (current-buffer) 'nomini t))
+             invalidate)
+         (dolist (number numbers)
+           (when (wl-summary-message-visible-p number)
+             (if (catch 'visible
+                   (let ((window-list window-list)
+                         win)
+                     (while (setq win (car window-list))
+                       (when (wl-summary-jump-to-msg number
+                                                     (window-start win)
+                                                     (window-end win))
+                         (throw 'visible t))
+                       (setq window-list (cdr window-list)))))
+                 (wl-summary-update-persistent-mark number)
+               (setq invalidate t))))
+         (when invalidate
+           (wl-summary-invalidate-persistent-mark)
+           (dolist (win window-list)
+             (wl-summary-validate-persistent-mark
+              (window-start win)
+              (window-end win)))))
       (dolist (number numbers)
-       (when (wl-summary-message-visible-p number)
-         (if (catch 'visible
-               (let ((window-list window-list)
-                     win)
-                 (while (setq win (car window-list))
-                   (when (wl-summary-jump-to-msg number
-                                                 (window-start win)
-                                                 (window-end win))
-                     (throw 'visible t))
-                   (setq window-list (cdr window-list)))))
-             (wl-summary-update-persistent-mark number)
-           (setq invalidate t))))
-      (when invalidate
-       (wl-summary-invalidate-persistent-mark)
-       (dolist (win window-list)
-         (wl-summary-validate-persistent-mark
-          (window-start win)
-          (window-end win)))))))
-
-(luna-define-method elmo-event-handler-cache-changed
-  ((handler wl-summary-event-handler) number)
-  (save-excursion
-    (set-buffer (wl-summary-event-handler-buffer-internal handler))
-    (let ((window-list (get-buffer-window-list (current-buffer) 'nomini t)))
-      (when (wl-summary-message-visible-p number)
-       (if (catch 'visible
-             (let ((window-list window-list)
-                   win)
-               (while (setq win (car window-list))
-                 (when (wl-summary-jump-to-msg number
-                                               (window-start win)
-                                               (window-end win))
-                   (throw 'visible t))
-                 (setq window-list (cdr window-list)))))
-           (wl-summary-update-persistent-mark number)
-         (wl-summary-invalidate-persistent-mark)
-         (dolist (win window-list)
-           (wl-summary-validate-persistent-mark
-            (window-start win)
-            (window-end win))))))))
+       (when (and (wl-summary-message-visible-p number)
+                  (wl-summary-jump-to-msg number))
+         (wl-summary-update-persistent-mark number))))))
+
+(defun wl-summary-buffer-attach ()
+  (when wl-summary-buffer-elmo-folder
+    (elmo-connect-signal
+     wl-summary-buffer-elmo-folder
+     'flag-changed
+     (current-buffer)
+     (elmo-define-signal-handler (buffer folder numbers)
+       (wl-summary-update-persistent-mark-on-event buffer numbers)))
+    (elmo-connect-signal
+     wl-summary-buffer-elmo-folder
+     'cache-changed
+     (current-buffer)
+     (elmo-define-signal-handler (buffer folder number)
+       (wl-summary-update-persistent-mark-on-event buffer (list number))))))
 
 (defun wl-summary-buffer-detach ()
   (when (and (eq major-mode 'wl-summary-mode)
-            wl-summary-buffer-elmo-folder
-            wl-summary-buffer-event-handler)
-    (elmo-folder-remove-handler wl-summary-buffer-elmo-folder
-                               wl-summary-buffer-event-handler)))
+            wl-summary-buffer-elmo-folder)
+    (elmo-disconnect-signal 'flag-changed (current-buffer))
+    (elmo-disconnect-signal 'cache-changed (current-buffer))))
 
 (defun wl-status-update ()
   (interactive)
@@ -891,11 +879,7 @@ you."
   (setq wl-summary-buffer-persistent
        (wl-folder-persistent-p (elmo-folder-name-internal folder)))
   (elmo-folder-set-persistent-internal folder wl-summary-buffer-persistent)
-  (elmo-folder-add-handler folder
-                          (setq wl-summary-buffer-event-handler
-                                (luna-make-entity
-                                 'wl-summary-event-handler
-                                 :buffer (current-buffer))))
+  (wl-summary-buffer-attach)
   ;; process duplicates.
   (elmo-folder-set-process-duplicates-internal
    folder (cdr (elmo-string-matched-assoc
@@ -2193,21 +2177,16 @@ If ARG, without confirm."
 
 (defun wl-summary-load-file-object (filename)
   "Load lisp object from dir."
-  (save-excursion
-    (let ((tmp-buffer (get-buffer-create " *wl-summary-load-file-object*"))
-         insert-file-contents-pre-hook   ; To avoid autoconv-xmas...
+  (with-temp-buffer
+    (let (insert-file-contents-pre-hook        ; To avoid autoconv-xmas...
          insert-file-contents-post-hook
          ret-val)
       (if (not (file-readable-p filename))
          ()
-       (set-buffer tmp-buffer)
        (as-binary-input-file (insert-file-contents filename))
-       (setq ret-val
-             (condition-case nil
-                 (read (current-buffer))
-               (error (error "Reading failed")))))
-      (kill-buffer tmp-buffer)
-      ret-val)))
+       (condition-case nil
+           (read (current-buffer))
+         (error (error "Reading failed")))))))
 
 (defun wl-summary-goto-folder (&optional arg)
   (interactive "P")
@@ -3682,11 +3661,9 @@ Return non-nil if the mark is updated"
                  (write-region-as-binary (point-min)(point-max)
                                          cache nil 'no-msg)))
              (when (file-writable-p view) ; 'thread or 'sequence
-               (save-excursion
-                 (set-buffer tmp-buffer)
-                 (erase-buffer)
-                 (prin1 save-view tmp-buffer)
-                 (princ "\n" tmp-buffer)
+               (with-temp-buffer
+                 (prin1 save-view (current-buffer))
+                 (princ "\n" (current-buffer))
                  (write-region (point-min) (point-max) view nil 'no-msg))))
          ;; kill tmp buffer.
          (kill-buffer tmp-buffer))))))
@@ -4497,7 +4474,9 @@ If ARG is numeric number, decode message as following:
        (setq mime-mode (case arg
                          (1 'mime)
                          (2 'header-only)
-                         (3 'as-is))))
+                         (3 'as-is)
+;;;                      (4 'decode-only)
+                         (5 'no-merge))))
        (arg
        ;; Specify coding-system (doesn't change the MIME mode).
        (setq elmo-mime-display-as-is-coding-system
@@ -4706,25 +4685,23 @@ If ARG is numeric number, decode message as following:
   (interactive)
   (let ((filename)
        (num (wl-summary-message-number)))
-    (if (null wl-save-dir)
-       (setq wl-save-dir wl-temporary-file-directory))
+    (unless wl-save-dir
+      (setq wl-save-dir wl-temporary-file-directory))
     (if num
        (save-excursion
          (setq filename (expand-file-name
                          (concat (int-to-string num)
                                  wl-summary-save-file-suffix)
                          wl-save-dir))
-         (if (null (and arg
-                        (null (file-exists-p filename))))
-             (setq filename
-                   (read-file-name "Save to file: " filename)))
-
+         (when (or (null arg)
+                   (file-exists-p filename))
+           (setq filename (read-file-name "Save to file: " filename)))
          (wl-summary-set-message-buffer-or-redisplay)
          (set-buffer (wl-message-get-original-buffer))
-         (if (and (null arg) (file-exists-p filename))
-             (if (y-or-n-p "File already exists.  override it? ")
-                 (write-region (point-min) (point-max) filename))
-           (write-region (point-min) (point-max) filename)))
+         (when (or arg
+                   (not (file-exists-p filename))
+                   (y-or-n-p "File already exists.  override it? "))
+           (write-region-as-binary (point-min) (point-max) filename)))
       (message "No message to save."))
     num))