mirror of
https://git.notmuchmail.org/git/notmuch
synced 2024-11-22 10:58:10 +01:00
251d57f56b
Add `notmuch-column-control', which has three potential sets of values: - t: automatically calculate the number of columns per line based on the tags to be shown and the window width, - an integer: a lower bound on the number of characters that will be used to display each column, - a float: a fraction of the window width that is the lower bound on the number of characters that should be used for each column. So: - if you would like two columns of tags, set this to 0.5. - if you would like a single column of tags, set this to 1.0. - if you would like tags to be 30 characters wide, set this to 30. - if you don't want to worry about all of this nonsense, leave this set to `t'.
476 lines
16 KiB
EmacsLisp
476 lines
16 KiB
EmacsLisp
;; notmuch-hello.el --- welcome to notmuch, a frontend
|
|
;;
|
|
;; Copyright © David Edmondson
|
|
;;
|
|
;; This file is part of Notmuch.
|
|
;;
|
|
;; Notmuch is free software: you can redistribute it and/or modify it
|
|
;; under the terms of the GNU General Public License as published by
|
|
;; the Free Software Foundation, either version 3 of the License, or
|
|
;; (at your option) any later version.
|
|
;;
|
|
;; Notmuch is distributed in the hope that it will be useful, but
|
|
;; WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
;; General Public License for more details.
|
|
;;
|
|
;; You should have received a copy of the GNU General Public License
|
|
;; along with Notmuch. If not, see <http://www.gnu.org/licenses/>.
|
|
;;
|
|
;; Authors: David Edmondson <dme@dme.org>
|
|
|
|
(require 'widget)
|
|
(require 'wid-edit) ; For `widget-forward'.
|
|
(require 'cl)
|
|
|
|
(require 'notmuch-lib)
|
|
(require 'notmuch-mua)
|
|
|
|
(declare-function notmuch-search "notmuch" (query &optional oldest-first target-thread target-line continuation))
|
|
(declare-function notmuch-poll "notmuch" ())
|
|
|
|
(defvar notmuch-hello-search-bar-marker nil
|
|
"The position of the search bar within the notmuch-hello buffer.")
|
|
|
|
(defcustom notmuch-recent-searches-max 10
|
|
"The number of recent searches to store and display."
|
|
:type 'integer
|
|
:group 'notmuch)
|
|
|
|
(defcustom notmuch-show-empty-saved-searches nil
|
|
"Should saved searches with no messages be listed?"
|
|
:type 'boolean
|
|
:group 'notmuch)
|
|
|
|
(defvar notmuch-hello-indent 4
|
|
"How much to indent non-headers.")
|
|
|
|
(defcustom notmuch-show-logo t
|
|
"Should the notmuch logo be shown?"
|
|
:type 'boolean
|
|
:group 'notmuch)
|
|
|
|
(defcustom notmuch-show-all-tags-list nil
|
|
"Should all tags be shown in the notmuch-hello view?"
|
|
:type 'boolean
|
|
:group 'notmuch)
|
|
|
|
(defface notmuch-hello-logo-background
|
|
'((((class color)
|
|
(background dark))
|
|
(:background "#5f5f5f"))
|
|
(((class color)
|
|
(background light))
|
|
(:background "white")))
|
|
"Background colour for the notmuch logo."
|
|
:group 'notmuch)
|
|
|
|
(defcustom notmuch-column-control t
|
|
"Controls the number of columns for saved searches/tags in notmuch view.
|
|
|
|
This variable has three potential sets of values:
|
|
|
|
- t: automatically calculate the number of columns possible based
|
|
on the tags to be shown and the window width,
|
|
- an integer: a lower bound on the number of characters that will
|
|
be used to display each column,
|
|
- a float: a fraction of the window width that is the lower bound
|
|
on the number of characters that should be used for each
|
|
column.
|
|
|
|
So:
|
|
- if you would like two columns of tags, set this to 0.5.
|
|
- if you would like a single column of tags, set this to 1.0.
|
|
- if you would like tags to be 30 characters wide, set this to
|
|
30.
|
|
- if you don't want to worry about all of this nonsense, leave
|
|
this set to `t'."
|
|
:group 'notmuch
|
|
:type '(choice
|
|
(const :tag "Automatically calculated" t)
|
|
(integer :tag "Number of characters")
|
|
(float :tag "Fraction of window")))
|
|
|
|
(defvar notmuch-hello-url "http://notmuchmail.org"
|
|
"The `notmuch' web site.")
|
|
|
|
(defvar notmuch-hello-recent-searches nil)
|
|
|
|
(defun notmuch-hello-remember-search (search)
|
|
(if (not (member search notmuch-hello-recent-searches))
|
|
(push search notmuch-hello-recent-searches))
|
|
(if (> (length notmuch-hello-recent-searches)
|
|
notmuch-recent-searches-max)
|
|
(setq notmuch-hello-recent-searches (butlast notmuch-hello-recent-searches))))
|
|
|
|
(defun notmuch-hello-trim (search)
|
|
"Trim whitespace."
|
|
(if (string-match "^[[:space:]]*\\(.*[^[:space:]]\\)[[:space:]]*$" search)
|
|
(match-string 1 search)
|
|
search))
|
|
|
|
(defun notmuch-hello-search (search)
|
|
(let ((search (notmuch-hello-trim search)))
|
|
(notmuch-hello-remember-search search)
|
|
(notmuch-search search notmuch-search-oldest-first nil nil #'notmuch-hello-search-continuation)))
|
|
|
|
(defun notmuch-hello-add-saved-search (widget)
|
|
(interactive)
|
|
(let ((search (widget-value
|
|
(symbol-value
|
|
(widget-get widget :notmuch-saved-search-widget))))
|
|
(name (completing-read "Name for saved search: "
|
|
notmuch-saved-searches)))
|
|
;; If an existing saved search with this name exists, remove it.
|
|
(setq notmuch-saved-searches
|
|
(loop for elem in notmuch-saved-searches
|
|
if (not (equal name
|
|
(car elem)))
|
|
collect elem))
|
|
;; Add the new one.
|
|
(customize-save-variable 'notmuch-saved-searches
|
|
(push (cons name search)
|
|
notmuch-saved-searches))
|
|
(message "Saved '%s' as '%s'." search name)
|
|
(notmuch-hello-update)))
|
|
|
|
(defun notmuch-hello-longest-label (tag-alist)
|
|
(or (loop for elem in tag-alist
|
|
maximize (length (car elem)))
|
|
0))
|
|
|
|
(defun notmuch-hello-roundup (dividend divisor)
|
|
"Return the rounded up value of dividing `dividend' by `divisor'."
|
|
(+ (/ dividend divisor)
|
|
(if (> (% dividend divisor) 0) 1 0)))
|
|
|
|
(defun notmuch-hello-reflect-generate-row (ncols nrows row list)
|
|
(let ((len (length list)))
|
|
(loop for col from 0 to (- ncols 1)
|
|
collect (let ((offset (+ (* nrows col) row)))
|
|
(if (< offset len)
|
|
(nth offset list)
|
|
;; Don't forget to insert an empty slot in the
|
|
;; output matrix if there is no corresponding
|
|
;; value in the input matrix.
|
|
nil)))))
|
|
|
|
(defun notmuch-hello-reflect (list ncols)
|
|
"Reflect a `ncols' wide matrix represented by `list' along the
|
|
diagonal."
|
|
;; Not very lispy...
|
|
(let ((nrows (notmuch-hello-roundup (length list) ncols)))
|
|
(loop for row from 0 to (- nrows 1)
|
|
append (notmuch-hello-reflect-generate-row ncols nrows row list))))
|
|
|
|
(defun notmuch-hello-widget-search (widget &rest ignore)
|
|
(notmuch-search (widget-get widget
|
|
:notmuch-search-terms)
|
|
notmuch-search-oldest-first
|
|
nil nil #'notmuch-hello-search-continuation))
|
|
|
|
(defun notmuch-saved-search-count (search)
|
|
(car (process-lines notmuch-command "count" search)))
|
|
|
|
(defun notmuch-hello-tags-per-line (widest)
|
|
"Determine how many tags to show per line and how wide they
|
|
should be. Returns a cons cell `(tags-per-line width)'."
|
|
(let ((tags-per-line
|
|
(cond
|
|
((integerp notmuch-column-control)
|
|
(max 1
|
|
(/ (- (window-width) notmuch-hello-indent)
|
|
;; Count is 7 wide (6 digits plus space), 1 for the space
|
|
;; after the name.
|
|
(+ 7 1 (max notmuch-column-control widest)))))
|
|
|
|
((floatp notmuch-column-control)
|
|
(let* ((available-width (- (window-width) notmuch-hello-indent))
|
|
(proposed-width (max (* available-width notmuch-column-control) widest)))
|
|
(floor available-width proposed-width)))
|
|
|
|
(t
|
|
(max 1
|
|
(/ (- (window-width) notmuch-hello-indent)
|
|
;; Count is 7 wide (6 digits plus space), 1 for the space
|
|
;; after the name.
|
|
(+ 7 1 widest)))))))
|
|
|
|
(cons tags-per-line (/ (- (window-width) notmuch-hello-indent
|
|
(* tags-per-line (+ 7 1)))
|
|
tags-per-line))))
|
|
|
|
(defun notmuch-hello-insert-tags (tag-alist widest target)
|
|
(let* ((tags-and-width (notmuch-hello-tags-per-line widest))
|
|
(tags-per-line (car tags-and-width))
|
|
(widest (cdr tags-and-width))
|
|
(count 0)
|
|
(reordered-list (notmuch-hello-reflect tag-alist tags-per-line))
|
|
;; Hack the display of the buttons used.
|
|
(widget-push-button-prefix "")
|
|
(widget-push-button-suffix "")
|
|
(found-target-pos nil))
|
|
;; dme: It feels as though there should be a better way to
|
|
;; implement this loop than using an incrementing counter.
|
|
(mapc (lambda (elem)
|
|
;; (not elem) indicates an empty slot in the matrix.
|
|
(when elem
|
|
(let* ((name (car elem))
|
|
(query (cdr elem))
|
|
(formatted-name (format "%s " name)))
|
|
(widget-insert (format "%6s " (notmuch-saved-search-count query)))
|
|
(if (string= formatted-name target)
|
|
(setq found-target-pos (point-marker)))
|
|
(widget-create 'push-button
|
|
:notify #'notmuch-hello-widget-search
|
|
:notmuch-search-terms query
|
|
formatted-name)
|
|
;; Insert enough space to consume the rest of the
|
|
;; column. Because the button for the name is `(1+
|
|
;; (length name))' long (due to the trailing space) we
|
|
;; can just insert `(- widest (length name))' spaces -
|
|
;; the column separator is included in the button if
|
|
;; `(equal widest (length name)'.
|
|
(widget-insert (make-string (- widest (length name)) ? ))))
|
|
(setq count (1+ count))
|
|
(if (eq (% count tags-per-line) 0)
|
|
(widget-insert "\n")))
|
|
reordered-list)
|
|
|
|
;; If the last line was not full (and hence did not include a
|
|
;; carriage return), insert one now.
|
|
(if (not (eq (% count tags-per-line) 0))
|
|
(widget-insert "\n"))
|
|
found-target-pos))
|
|
|
|
(defun notmuch-hello-goto-search ()
|
|
"Put point inside the `search' widget."
|
|
(interactive)
|
|
(goto-char notmuch-hello-search-bar-marker))
|
|
|
|
(defimage notmuch-hello-logo ((:type png :file "notmuch-logo.png")))
|
|
|
|
(defun notmuch-hello-search-continuation()
|
|
(notmuch-hello-update t))
|
|
|
|
(defun notmuch-hello-update (&optional no-display)
|
|
;; Lazy - rebuild everything.
|
|
(interactive)
|
|
(notmuch-hello no-display))
|
|
|
|
(defun notmuch-hello-poll-and-update ()
|
|
"Invoke `notmuch-poll' to import mail, then refresh the current view."
|
|
(interactive)
|
|
(notmuch-poll)
|
|
(notmuch-hello-update))
|
|
|
|
(defun notmuch-hello (&optional no-display)
|
|
(interactive)
|
|
|
|
; Jump through a hoop to get this value from the deprecated variable
|
|
; name (`notmuch-folders') or from the default value.
|
|
(if (not notmuch-saved-searches)
|
|
(setq notmuch-saved-searches (notmuch-saved-searches)))
|
|
|
|
(if no-display
|
|
(set-buffer "*notmuch-hello*")
|
|
(switch-to-buffer "*notmuch-hello*"))
|
|
|
|
(let ((target (if (widget-at)
|
|
(widget-value (widget-at))
|
|
(condition-case nil
|
|
(progn
|
|
(widget-forward 1)
|
|
(widget-value (widget-at)))
|
|
(error nil)))))
|
|
|
|
(kill-all-local-variables)
|
|
(let ((inhibit-read-only t))
|
|
(erase-buffer))
|
|
|
|
(let ((all (overlay-lists)))
|
|
;; Delete all the overlays.
|
|
(mapc 'delete-overlay (car all))
|
|
(mapc 'delete-overlay (cdr all)))
|
|
|
|
(when notmuch-show-logo
|
|
(let ((image notmuch-hello-logo))
|
|
;; The notmuch logo uses transparency. That can display poorly
|
|
;; when inserting the image into an emacs buffer (black logo on
|
|
;; a black background), so force the background colour of the
|
|
;; image. We use a face to represent the colour so that
|
|
;; `defface' can be used to declare the different possible
|
|
;; colours, which depend on whether the frame has a light or
|
|
;; dark background.
|
|
(setq image (cons 'image
|
|
(append (cdr image)
|
|
(list :background (face-background 'notmuch-hello-logo-background)))))
|
|
(insert-image image))
|
|
(widget-insert " "))
|
|
|
|
(widget-insert "Welcome to ")
|
|
;; Hack the display of the links used.
|
|
(let ((widget-link-prefix "")
|
|
(widget-link-suffix ""))
|
|
(widget-create 'link
|
|
:notify (lambda (&rest ignore)
|
|
(browse-url notmuch-hello-url))
|
|
:help-echo "Visit the notmuch website."
|
|
"notmuch")
|
|
(widget-insert ". ")
|
|
(widget-insert "You have ")
|
|
(widget-create 'link
|
|
:notify (lambda (&rest ignore)
|
|
(notmuch-hello-update))
|
|
:help-echo "Refresh"
|
|
(car (process-lines notmuch-command "count")))
|
|
(widget-insert " messages (that's not much mail).\n"))
|
|
|
|
(let ((found-target-pos nil)
|
|
(final-target-pos nil))
|
|
(let* ((saved-alist
|
|
;; Filter out empty saved seaches if required.
|
|
(if notmuch-show-empty-saved-searches
|
|
notmuch-saved-searches
|
|
(loop for elem in notmuch-saved-searches
|
|
if (> (string-to-number (notmuch-saved-search-count (cdr elem))) 0)
|
|
collect elem)))
|
|
(saved-widest (notmuch-hello-longest-label saved-alist))
|
|
(alltags-alist (if notmuch-show-all-tags-list
|
|
(mapcar '(lambda (tag) (cons tag (concat "tag:" tag)))
|
|
(process-lines notmuch-command "search-tags"))))
|
|
(alltags-widest (notmuch-hello-longest-label alltags-alist))
|
|
(widest (max saved-widest alltags-widest)))
|
|
|
|
(when saved-alist
|
|
(widget-insert "\nSaved searches: ")
|
|
(widget-create 'push-button
|
|
:notify (lambda (&rest ignore)
|
|
(customize-variable 'notmuch-saved-searches))
|
|
"edit")
|
|
(widget-insert "\n\n")
|
|
(setq final-target-pos (point-marker))
|
|
(let ((start (point)))
|
|
(setq found-target-pos (notmuch-hello-insert-tags saved-alist widest target))
|
|
(if found-target-pos
|
|
(setq final-target-pos found-target-pos))
|
|
(indent-rigidly start (point) notmuch-hello-indent)))
|
|
|
|
(widget-insert "\nSearch: ")
|
|
(setq notmuch-hello-search-bar-marker (point-marker))
|
|
(widget-create 'editable-field
|
|
;; Leave some space at the start and end of the
|
|
;; search boxes.
|
|
:size (max 8 (- (window-width) notmuch-hello-indent
|
|
(length "Search: ")))
|
|
:action (lambda (widget &rest ignore)
|
|
(notmuch-hello-search (widget-value widget))))
|
|
(widget-insert "\n")
|
|
|
|
(when notmuch-hello-recent-searches
|
|
(widget-insert "\nRecent searches: ")
|
|
(widget-create 'push-button
|
|
:notify (lambda (&rest ignore)
|
|
(setq notmuch-hello-recent-searches nil)
|
|
(notmuch-hello-update))
|
|
"clear")
|
|
(widget-insert "\n\n")
|
|
(let ((start (point))
|
|
(nth 0))
|
|
(mapc '(lambda (search)
|
|
(let ((widget-symbol (intern (format "notmuch-hello-search-%d" nth))))
|
|
(set widget-symbol
|
|
(widget-create 'editable-field
|
|
;; Don't let the search boxes be
|
|
;; less than 8 characters wide.
|
|
:size (max 8
|
|
(- (window-width)
|
|
;; Leave some space
|
|
;; at the start and
|
|
;; end of the
|
|
;; boxes.
|
|
(* 2 notmuch-hello-indent)
|
|
;; 1 for the space
|
|
;; before the
|
|
;; `[save]' button. 6
|
|
;; for the `[save]'
|
|
;; button.
|
|
1 6))
|
|
:action (lambda (widget &rest ignore)
|
|
(notmuch-hello-search (widget-value widget)))
|
|
search))
|
|
(widget-insert " ")
|
|
(widget-create 'push-button
|
|
:notify (lambda (widget &rest ignore)
|
|
(notmuch-hello-add-saved-search widget))
|
|
:notmuch-saved-search-widget widget-symbol
|
|
"save"))
|
|
(widget-insert "\n")
|
|
(setq nth (1+ nth)))
|
|
notmuch-hello-recent-searches)
|
|
(indent-rigidly start (point) notmuch-hello-indent)))
|
|
|
|
(when alltags-alist
|
|
(widget-insert "\nAll tags: ")
|
|
(widget-create 'push-button
|
|
:notify (lambda (widget &rest ignore)
|
|
(setq notmuch-show-all-tags-list nil)
|
|
(notmuch-hello-update))
|
|
"hide")
|
|
(widget-insert "\n\n")
|
|
(let ((start (point)))
|
|
(setq found-target-pos (notmuch-hello-insert-tags alltags-alist widest target))
|
|
(if (not final-target-pos)
|
|
(setq final-target-pos found-target-pos))
|
|
(indent-rigidly start (point) notmuch-hello-indent)))
|
|
|
|
(widget-insert "\n")
|
|
|
|
(if (not notmuch-show-all-tags-list)
|
|
(widget-create 'push-button
|
|
:notify (lambda (widget &rest ignore)
|
|
(setq notmuch-show-all-tags-list t)
|
|
(notmuch-hello-update))
|
|
"Show all tags")))
|
|
|
|
(let ((start (point)))
|
|
(widget-insert "\n\n")
|
|
(widget-insert "Type a search query and hit RET to view matching threads.\n")
|
|
(when notmuch-hello-recent-searches
|
|
(widget-insert "Hit RET to re-submit a previous search. Edit it first if you like.\n")
|
|
(widget-insert "Save recent searches with the `save' button.\n"))
|
|
(when notmuch-saved-searches
|
|
(widget-insert "Edit saved searches with the `edit' button.\n"))
|
|
(widget-insert "Hit RET or click on a saved search or tag name to view matching threads.\n")
|
|
(widget-insert "`=' refreshes this screen. `s' jumps to the search box. `q' to quit.\n")
|
|
(let ((fill-column (- (window-width) notmuch-hello-indent)))
|
|
(center-region start (point))))
|
|
|
|
(use-local-map widget-keymap)
|
|
(local-set-key "=" 'notmuch-hello-update)
|
|
(local-set-key "G" 'notmuch-hello-poll-and-update)
|
|
(local-set-key "m" 'notmuch-mua-mail)
|
|
(local-set-key "q" '(lambda () (interactive) (kill-buffer (current-buffer))))
|
|
(local-set-key "s" 'notmuch-hello-goto-search)
|
|
(local-set-key "v" '(lambda () (interactive)
|
|
(message "notmuch version %s" (notmuch-version))))
|
|
|
|
(widget-setup)
|
|
|
|
(when final-target-pos
|
|
(goto-char final-target-pos)
|
|
(unless (widget-at)
|
|
(widget-forward 1)))
|
|
|
|
(unless (widget-at)
|
|
(notmuch-hello-goto-search)))))
|
|
|
|
;;;###autoload
|
|
(defun notmuch-folder ()
|
|
"Deprecated function for invoking notmuch---calling `notmuch' is preferred now."
|
|
(interactive)
|
|
(notmuch-hello))
|
|
|
|
;;
|
|
|
|
(provide 'notmuch-hello)
|