With an argument, record and reply the state of the buffer during `notmuch-show-refresh-view'.
In this context, "state" is defined as: - the open/closed state of each message, - the current message. Traditional use of refresh with the = key does not retain the state. The recently introduced toggle commands ($, !, < and >) do retain the state. --- emacs/notmuch-show.el | 56 ++++++++++++++++++++++++++++++++++++++++++------- 1 files changed, 48 insertions(+), 8 deletions(-) diff --git a/emacs/notmuch-show.el b/emacs/notmuch-show.el index db9292c..f23aa8d 100644 --- a/emacs/notmuch-show.el +++ b/emacs/notmuch-show.el @@ -948,7 +948,7 @@ current buffer, if possible." (message (if notmuch-show-process-crypto "Processing cryptographic MIME parts." "Not processing cryptographic MIME parts.")) - (notmuch-show-refresh-view)) + (notmuch-show-refresh-view t)) (defun notmuch-show-toggle-elide-non-matching () "Toggle the display of non-matching messages." @@ -957,7 +957,7 @@ current buffer, if possible." (message (if notmuch-show-elide-non-matching-messages "Showing matching messages only." "Showing all messages.")) - (notmuch-show-refresh-view)) + (notmuch-show-refresh-view t)) (defun notmuch-show-toggle-thread-indentation () "Toggle the indentation of threads." @@ -966,7 +966,7 @@ current buffer, if possible." (message (if notmuch-show-indent-content "Content is indented." "Content is not indented.")) - (notmuch-show-refresh-view)) + (notmuch-show-refresh-view t)) (defun notmuch-show-insert-tree (tree depth) "Insert the message tree TREE at depth DEPTH in the current thread." @@ -1070,14 +1070,54 @@ function is used." (notmuch-show-mark-read))) -(defun notmuch-show-refresh-view () +(defun notmuch-show-capture-state () + "Capture the state of the current buffer. + +This includes: + - the list of open messages, + - the current message." + (list (notmuch-show-get-message-id) (notmuch-show-get-message-ids-for-open-messages))) + +(defun notmuch-show-apply-state (state) + "Apply STATE to the current buffer. + +This includes: + - opening the messages previously opened, + - closing all other messages, + - moving to the correct current message." + (let ((current (car state)) + (open (cadr state))) + + ;; Open those that were open. + (goto-char (point-min)) + (loop do (notmuch-show-message-visible (notmuch-show-get-message-properties) + (member (notmuch-show-get-message-id) open)) + until (not (notmuch-show-goto-message-next))) + + ;; Go to the previously open message. + (goto-char (point-min)) + (unless (loop if (string= current (notmuch-show-get-message-id)) + return t + until (not (notmuch-show-goto-message-next))) + (goto-char (point-min)) + (message "Previously current message not found.")) + (notmuch-show-message-adjust))) + +(defun notmuch-show-refresh-view (&optional retain-state) "Refresh the current view. -Refreshes the current view, observing changes in cryptographic preferences." +Refreshes the current view, observing changes in display +preferences. If RETAIN-STATE is non-nil then the state of the +buffer is stored and re-applied after the refresh." (interactive) - (let ((inhibit-read-only t)) - (erase-buffer)) - (notmuch-show-worker)) + (let ((inhibit-read-only t) + state) + (if retain-state + (setq state (notmuch-show-capture-state))) + (erase-buffer) + (notmuch-show-worker) + (if state + (notmuch-show-apply-state state)))) (defvar notmuch-show-stash-map (let ((map (make-sparse-keymap))) -- 1.7.8.3