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+ Sat, 14 Dec 2013 15:53:37 -0800 (PST)\r
+From: Mark Walters <markwalters1009@gmail.com>\r
+To: notmuch@notmuchmail.org\r
+Subject: [PATCH v2 3/5] emacs: show: mark tags changed since buffer loaded\r
+Date: Sat, 14 Dec 2013 23:53:15 +0000\r
+Message-Id: <1387065197-15776-4-git-send-email-markwalters1009@gmail.com>\r
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+\r
+This shows any tags changed in the show buffer since it was loaded or\r
+refreshed. By default a removed tag is displayed with strike-through\r
+in red (if strike-through is not available, eg on a terminal, inverse\r
+video is used instead) and an added tag is displayed underlined in\r
+green.\r
+\r
+One nice feature is that this makes it clear when a message was unread\r
+when you first loaded the buffer (previously the unread tag could be\r
+removed before a user realised that it had been unread).\r
+\r
+The code adds into the existing tag formatting code. The user can\r
+specify exactly how a tag should be displayed normally, when deleted,\r
+or when added. For convenience an entry for the entry string in the\r
+notmuch-tag-formats (and the corresponding notmuch-tag-deleted-formats\r
+notmuch-tag-added-formats) is applied to all tags which do not have an\r
+explicit match.\r
+\r
+This means that a user can tell notmuch not to show deleted tags at\r
+all by setting notmuch-tag-deleted-formats to\r
+'(("" nil))\r
+or not to show any deleted tags except "unread" by setting it to\r
+'(("" nil)\r
+ ("unread" (propertize tag 'face '(strike-through "red"))))\r
+\r
+All the variables are customizable; however, more complicated cases\r
+like changing the face depending on the type of display will require\r
+custom lisp.\r
+\r
+Currently this overrides notmuch-tag-deleted-formats for the tests\r
+setting it to '(("" nil)) so that they get removed from the display\r
+and, thus, all tests still pass.\r
+---\r
+ emacs/notmuch-show.el | 22 ++++++++--\r
+ emacs/notmuch-tag.el | 105 +++++++++++++++++++++++++++++++++++--------------\r
+ test/test-lib.el | 4 ++\r
+ 3 files changed, 96 insertions(+), 35 deletions(-)\r
+\r
+diff --git a/emacs/notmuch-show.el b/emacs/notmuch-show.el\r
+index 1ac80ca..30e84b1 100644\r
+--- a/emacs/notmuch-show.el\r
++++ b/emacs/notmuch-show.el\r
+@@ -341,11 +341,21 @@ operation on the contents of the current buffer."\r
+ "Update the displayed tags of the current message."\r
+ (save-excursion\r
+ (goto-char (notmuch-show-message-top))\r
+- (if (re-search-forward "(\\([^()]*\\))$" (line-end-position) t)\r
+- (let ((inhibit-read-only t))\r
+- (replace-match (concat "("\r
+- (notmuch-tag-format-tags tags)\r
+- ")"))))))\r
++ (let* ((orig-tags (notmuch-show-get-prop :orig-tags))\r
++ (all-tags (sort (delete-dups (append tags orig-tags)) #'string<))\r
++ (display-tags (mapcar (lambda (tag) (cond ((and (member tag tags) (member tag orig-tags))\r
++ tag)\r
++ ((not (member tag tags))\r
++ (cons tag 'deleted))\r
++ ((not (member tag orig-tags))\r
++ (cons tag 'added))))\r
++ all-tags)))\r
++\r
++ (if (re-search-forward "(\\([^()]*\\))$" (line-end-position) t)\r
++ (let ((inhibit-read-only t))\r
++ (replace-match (concat "("\r
++ (notmuch-tag-format-tags display-tags)\r
++ ")")))))))\r
+ \r
+ (defun notmuch-clean-address (address)\r
+ "Try to clean a single email ADDRESS for display. Return a cons\r
+@@ -1167,6 +1177,8 @@ function is used."\r
+ \r
+ (jit-lock-register #'notmuch-show-buttonise-links)\r
+ \r
++ (notmuch-show-mapc (lambda () (notmuch-show-set-prop :orig-tags (notmuch-show-get-tags))))\r
++\r
+ ;; Set the header line to the subject of the first message.\r
+ (setq header-line-format (notmuch-sanitize (notmuch-show-strip-re (notmuch-show-get-subject))))\r
+ \r
+diff --git a/emacs/notmuch-tag.el b/emacs/notmuch-tag.el\r
+index b60f46c..81ce287 100644\r
+--- a/emacs/notmuch-tag.el\r
++++ b/emacs/notmuch-tag.el\r
+@@ -28,34 +28,8 @@\r
+ (require 'crm)\r
+ (require 'notmuch-lib)\r
+ \r
+-(defcustom notmuch-tag-formats\r
+- '(("unread" (propertize tag 'face '(:foreground "red")))\r
+- ("flagged" (propertize tag 'face '(:foreground "blue"))\r
+- (notmuch-tag-format-image-data tag (notmuch-tag-star-icon))))\r
+- "Custom formats for individual tags.\r
+-\r
+-This gives a list that maps from tag names to lists of formatting\r
+-expressions. The car of each element gives a tag name and the\r
+-cdr gives a list of Elisp expressions that modify the tag. If\r
+-the list is empty, the tag will simply be hidden. Otherwise,\r
+-each expression will be evaluated in order: for the first\r
+-expression, the variable `tag' will be bound to the tag name; for\r
+-each later expression, the variable `tag' will be bound to the\r
+-result of the previous expression. In this way, each expression\r
+-can build on the formatting performed by the previous expression.\r
+-The result of the last expression will displayed in place of the\r
+-tag.\r
+-\r
+-For example, to replace a tag with another string, simply use\r
+-that string as a formatting expression. To change the foreground\r
+-of a tag to red, use the expression\r
+- (propertize tag 'face '(:foreground \"red\"))\r
+-\r
+-See also `notmuch-tag-format-image', which can help replace tags\r
+-with images."\r
+-\r
+- :group 'notmuch-search\r
+- :group 'notmuch-show\r
++(define-widget 'notmuch-tag-format-type 'lazy\r
++ "Customize widget for notmuch-tag-format and friends"\r
+ :type '(alist :key-type (string :tag "Tag")\r
+ :extra-offset -3\r
+ :value-type\r
+@@ -82,6 +56,61 @@ with images."\r
+ (string :tag "Custom")))\r
+ (sexp :tag "Custom")))))\r
+ \r
++(defcustom notmuch-tag-formats\r
++ '(("unread" (propertize tag 'face '(:foreground "red")))\r
++ ("flagged" (propertize tag 'face '(:foreground "blue"))\r
++ (notmuch-tag-format-image-data tag (notmuch-tag-star-icon))))\r
++ "Custom formats for individual tags.\r
++\r
++This gives a list that maps from tag names to lists of formatting\r
++expressions. The car of each element gives a tag name and the\r
++cdr gives a list of Elisp expressions that modify the tag. If the\r
++car is an empty string it matches all tags that do not have an\r
++explicit match. If the list is empty, the tag will simply be\r
++hidden. Otherwise, each expression will be evaluated in order:\r
++for the first expression, the variable `tag' will be bound to the\r
++tag name; for each later expression, the variable `tag' will be\r
++bound to the result of the previous expression. In this way,\r
++each expression can build on the formatting performed by the\r
++previous expression. The result of the last expression will\r
++displayed in place of the tag.\r
++\r
++For example, to replace a tag with another string, simply use\r
++that string as a formatting expression. To change the foreground\r
++of a tag to red, use the expression\r
++ (propertize tag 'face '(:foreground \"red\"))\r
++\r
++See also `notmuch-tag-format-image', which can help replace tags\r
++with images."\r
++ :group 'notmuch-search\r
++ :group 'notmuch-show\r
++ :type 'notmuch-tag-format-type)\r
++\r
++(defcustom notmuch-tag-deleted-formats\r
++ '(("" (propertize tag 'face\r
++ (if (display-supports-face-attributes-p '(:strike-through "red"))\r
++ '(:strike-through "red")\r
++ '(:inverse-video t)))))\r
++ "Custom formats for tags when deleted.\r
++\r
++By default this shows deleted tags with strike-through in red,\r
++unless strike-through is not available (e.g., emacs is running in\r
++a terminal) in which case it uses inverse video. To hide deleted\r
++tags completely set this to\r
++ '((\"\" nil))\r
++\r
++See `notmuch-tag-formats' for full documentation."\r
++ :group 'notmuch-show\r
++ :type 'notmuch-tag-format-type)\r
++\r
++(defcustom notmuch-tag-added-formats\r
++ '(("" (propertize tag 'face '(:underline "green"))))\r
++ "Custom formats for tags when added.\r
++\r
++See `notmuch-tag-formats' for full documentation."\r
++ :group 'notmuch-show\r
++ :type 'notmuch-tag-format-type)\r
++\r
+ (defun notmuch-tag-format-image-data (tag data)\r
+ "Replace TAG with image DATA, if available.\r
+ \r
+@@ -136,8 +165,24 @@ This can be used with `notmuch-tag-format-image-data'."\r
+ </svg>")\r
+ \r
+ (defun notmuch-tag-format-tag (tag)\r
+- "Format TAG by looking into `notmuch-tag-formats'."\r
+- (let ((formats (assoc tag notmuch-tag-formats)))\r
++ "Format TAG by looking into `notmuch-tag-formats'.\r
++\r
++TAG can either be a string for a tag or a cons cell. In the\r
++latter case the car of the cons cell is the tag string, the cdr\r
++should be 'deleted or 'added to indicate whether the tag has been\r
++deleted or added. The format for tag is looked up in\r
++`notmuch-tag-formats' or `notmuch-tag-deleted-formats' or\r
++`notmuch-tag-added-formats' as appropriate."\r
++ (let* ((status (if (consp tag) (cdr tag)))\r
++ (tag (if (consp tag) (car tag) tag))\r
++ (status-formats (cond\r
++ ((eq status 'deleted)\r
++ notmuch-tag-deleted-formats)\r
++ ((eq status 'added)\r
++ notmuch-tag-added-formats)\r
++ (t notmuch-tag-formats)))\r
++ (formats (or (append (assoc tag status-formats))\r
++ (append (assoc "" status-formats)))))\r
+ (cond\r
+ ((null formats) ;; - Tag not in `notmuch-tag-formats',\r
+ tag) ;; the format is the tag itself.\r
+diff --git a/test/test-lib.el b/test/test-lib.el\r
+index 1c9e224..a1b40b7 100644\r
+--- a/test/test-lib.el\r
++++ b/test/test-lib.el\r
+@@ -174,3 +174,7 @@ nothing."\r
+ (dolist (form body ret)\r
+ (setq ret (eval form))\r
+ (notmuch-post-command))))\r
++\r
++;; hide deleted tags\r
++(setq notmuch-tag-deleted-formats\r
++ '(("" nil)))\r
+-- \r
+1.7.9.1\r
+\r
projects / notmuch-archives.git / commitdiff