emacs: add notmuch-show-refresh-view function

This function, like the equivalent for notmuch-search, just refreshes
the current show view.  Like in notmuch-search, this new function is
bound to "=".  If a prefix is given then the redisplay happens with the
crypto-switch set, which displays the thread with the opposite logic
of whatever is set in the notmuch-crypto-process-mime customization
variable.

diff --git a/emacs/notmuch-show.el b/emacs/notmuch-show.el
index 90f9af7f2d9d4b5a6b8a78d706b6e6025634a1d8..8db5435fb291b22abf1317ebed0c7e79c0cfd0aa 100644 (file)
--- a/emacs/notmuch-show.el
+++ b/emacs/notmuch-show.el
@@ -780,8 +780,14 @@ current buffer, if possible."
   "Insert the forest of threads FOREST."
   (mapc '(lambda (thread) (notmuch-show-insert-thread thread 0)) forest))
 
+(defvar notmuch-show-thread-id nil)
+(make-variable-buffer-local 'notmuch-show-thread-id)
 (defvar notmuch-show-parent-buffer nil)
 (make-variable-buffer-local 'notmuch-show-parent-buffer)
+(defvar notmuch-show-query-context nil)
+(make-variable-buffer-local 'notmuch-show-query-context)
+(defvar notmuch-show-buffer-name nil)
+(make-variable-buffer-local 'notmuch-show-buffer-name)
 
 ;;;###autoload
 (defun notmuch-show (thread-id &optional parent-buffer query-context buffer-name crypto-switch)
@@ -801,17 +807,23 @@ which the message thread is shown. If it is nil (which occurs
 when the command is called interactively) the argument to the
 function is used. "
   (interactive "sNotmuch show: ")
-  (let ((buffer (get-buffer-create (generate-new-buffer-name
-                                   (or buffer-name
-                                       (concat "*notmuch-" thread-id "*")))))
-       (process-crypto (if crypto-switch
-                           (not notmuch-crypto-process-mime)
-                         notmuch-crypto-process-mime))
-       (inhibit-read-only t))
+  (let* ((buffer-name (generate-new-buffer-name
+                      (or buffer-name
+                          (concat "*notmuch-" thread-id "*"))))
+        (buffer (get-buffer-create buffer-name))
+        (process-crypto (if crypto-switch
+                            (not notmuch-crypto-process-mime)
+                          notmuch-crypto-process-mime))
+        (inhibit-read-only t))
     (switch-to-buffer buffer)
     (notmuch-show-mode)
+
+    (setq notmuch-show-thread-id thread-id)
     (setq notmuch-show-parent-buffer parent-buffer)
+    (setq notmuch-show-query-context query-context)
+    (setq notmuch-show-buffer-name buffer-name)
     (setq notmuch-show-process-crypto process-crypto)
+
     (erase-buffer)
     (goto-char (point-min))
     (save-excursion
@@ -844,6 +856,21 @@ function is used. "
 
     (notmuch-show-mark-read)))
 
+(defun notmuch-show-refresh-view (&optional crypto-switch)
+  "Refresh the current view (with crypto switch if prefix given).
+
+Kills the current buffer and reruns notmuch show with the same
+thread id.  If a prefix is given, the current thread is
+redisplayed with the crypto switch activated, which switch the
+logic of the notmuch-crypto-process-mime customization variable."
+  (interactive "P")
+  (let ((thread-id notmuch-show-thread-id)
+       (parent-buffer notmuch-show-parent-buffer)
+       (query-context notmuch-show-query-context)
+       (buffer-name notmuch-show-buffer-name))
+    (notmuch-kill-this-buffer)
+    (notmuch-show thread-id parent-buffer query-context buffer-name crypto-switch)))
+
 (defvar notmuch-show-stash-map
   (let ((map (make-sparse-keymap)))
     (define-key map "c" 'notmuch-show-stash-cc)
@@ -875,6 +902,7 @@ function is used. "
        (define-key map "V" 'notmuch-show-view-raw-message)
        (define-key map "v" 'notmuch-show-view-all-mime-parts)
        (define-key map "c" 'notmuch-show-stash-map)
+       (define-key map "=" 'notmuch-show-refresh-view)
        (define-key map "h" 'notmuch-show-toggle-headers)
        (define-key map "-" 'notmuch-show-remove-tag)
        (define-key map "+" 'notmuch-show-add-tag)