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Merge pull request #1236 from mhcerri/mu4e-orphan-thread-prefix 

mu4e: orphan thread prefix
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Dirk-Jan C. Binnema 2018-05-11 14:50:01 +03:00 committed by GitHub
parent 35951da4b5 94e9795d9d
commit c2c5dd5939
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1 changed files with 25 additions and 33 deletions
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58
mu4e/mu4e-headers.el
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@ -233,38 +233,29 @@ one of: `:date', `:subject', `:size', `:prio', `:from', `:to.',
;; thread prefix marks
(defvar mu4e-headers-thread-child-prefix '("├>" . "┣▶ ")
"Prefix for messages in sub threads that do have a following sibling.
This variable is only used when mu4e-headers-new-thread-style is non-nil.")
"Prefix for messages in sub threads that do have a following sibling.")
(defvar mu4e-headers-thread-last-child-prefix '("└>" . "┗▶ ")
"Prefix for messages in sub threads that do not have a following sibling.
This variable is only used when mu4e-headers-new-thread-style is non-nil.")
"Prefix for messages in sub threads that do not have a following sibling.")
(defvar mu4e-headers-thread-connection-prefix '("│" . "┃ ")
"Prefix to connect sibling messages that do not follow each other.
This prefix should have the same length as `mu4e-headers-thread-blank-prefix'.
This variable is only used when mu4e-headers-new-thread-style is non-nil.")
This prefix should have the same length as `mu4e-headers-thread-blank-prefix'.")
(defvar mu4e-headers-thread-blank-prefix '(" " . " ")
"Prefix to separate non connected messages.
This prefix should have the same length as `mu4e-headers-thread-connection-prefix'.
This prefix should have the same length as `mu4e-headers-thread-connection-prefix'.")
This variable is only used when mu4e-headers-new-thread-style is non-nil.")
(defvar mu4e-headers-thread-orphan-prefix '("┬>" . "┳▶ ")
"Prefix for orphan messages with siblings.")
(defvar mu4e-headers-thread-orphan-prefix '("" . "")
"Prefix for orphan messages.
This variable is only used when mu4e-headers-new-thread-style is non-nil.")
(defvar mu4e-headers-thread-single-orphan-prefix '("─>" . "━▶ ")
"Prefix for orphan messages with no siblings.")
(defvar mu4e-headers-thread-duplicate-prefix '("=" . "≡ ")
"Prefix for duplicate messages.
This variable is only used when mu4e-headers-new-thread-style is non-nil.")
"Prefix for duplicate messages.")
(defvar mu4e-headers-actions
'( ("capture message" . mu4e-action-capture-message)
@ -445,13 +436,14 @@ into a string."
(lambda (cell)
(if mu4e-use-fancy-chars (cdr cell) (car cell)))))
(case type
('child (funcall get-prefix mu4e-headers-thread-child-prefix))
('last-child (funcall get-prefix mu4e-headers-thread-last-child-prefix))
('connection (funcall get-prefix mu4e-headers-thread-connection-prefix))
('blank (funcall get-prefix mu4e-headers-thread-blank-prefix))
('orphan (funcall get-prefix mu4e-headers-thread-orphan-prefix))
('duplicate (funcall get-prefix mu4e-headers-thread-duplicate-prefix))
(t "?"))))
('child (funcall get-prefix mu4e-headers-thread-child-prefix))
('last-child (funcall get-prefix mu4e-headers-thread-last-child-prefix))
('connection (funcall get-prefix mu4e-headers-thread-connection-prefix))
('blank (funcall get-prefix mu4e-headers-thread-blank-prefix))
('orphan (funcall get-prefix mu4e-headers-thread-orphan-prefix))
('single-orphan (funcall get-prefix mu4e-headers-thread-single-orphan-prefix))
('duplicate (funcall get-prefix mu4e-headers-thread-duplicate-prefix))
(t "?"))))
;; In order to print a thread tree with all the message connections,
;; it's necessary to keep track of all sub levels that still have
@ -470,7 +462,7 @@ into a string."
(last-child (plist-get thread :last-child))
(duplicate (plist-get thread :duplicate)))
;; Do not prefix root messages.
(if (or (= level 0) empty-parent)
(if (= level 0)
(setq mu4e~headers-thread-state '()))
(if (> level 0)
(let* ((length (length mu4e~headers-thread-state))
@ -490,12 +482,14 @@ into a string."
;; connections or blanks.
(mapconcat
(lambda (s)
(if s (mu4e~headers-thread-prefix-map 'connection)
(mu4e~headers-thread-prefix-map 'blank)))
(mu4e~headers-thread-prefix-map
(if s 'connection 'blank)))
mu4e~headers-thread-state "")
;; Current entry.
(if last-child (mu4e~headers-thread-prefix-map 'last-child)
(mu4e~headers-thread-prefix-map 'child))))))
(mu4e~headers-thread-prefix-map
(if (and empty-parent first-child)
(if last-child 'single-orphan 'orphan)
(if last-child 'last-child 'child)))))))
;; If a new sub-thread will follow (has-child) and the current
;; one is still not done (not last-child), then a new
;; connection needs to be added to the tree-state. It's not
@ -505,10 +499,8 @@ into a string."
(setq mu4e~headers-thread-state
(append mu4e~headers-thread-state '(t))))
;; Return the thread prefix.
(format "%s%s%s"
(format "%s%s"
prefix
(if empty-parent
(mu4e~headers-thread-prefix-map 'orphan) "")
(if duplicate
(mu4e~headers-thread-prefix-map 'duplicate) "")))))