mirror of
https://git.notmuchmail.org/git/notmuch
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d931758a15
This is complex enough to warrant a dedicated widget type, which will make future improvements less messy to implement.
980 lines
37 KiB
EmacsLisp
980 lines
37 KiB
EmacsLisp
;;; notmuch-hello.el --- welcome to notmuch, a frontend
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;;
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;; Copyright © David Edmondson
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;;
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;; This file is part of Notmuch.
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;;
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;; Notmuch is free software: you can redistribute it and/or modify it
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;; under the terms of the GNU General Public License as published by
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;; the Free Software Foundation, either version 3 of the License, or
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;; (at your option) any later version.
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;;
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;; Notmuch is distributed in the hope that it will be useful, but
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;; WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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;; General Public License for more details.
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;;
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;; You should have received a copy of the GNU General Public License
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;; along with Notmuch. If not, see <https://www.gnu.org/licenses/>.
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;;
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;; Authors: David Edmondson <dme@dme.org>
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;;; Code:
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(require 'cl-lib)
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(require 'widget)
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(require 'wid-edit) ; For `widget-forward'.
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(require 'notmuch-lib)
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(require 'notmuch-mua)
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(declare-function notmuch-search "notmuch"
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(&optional query oldest-first target-thread target-line continuation))
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(declare-function notmuch-poll "notmuch" ())
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(declare-function notmuch-tree "notmuch-tree"
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(&optional query query-context target buffer-name open-target unthreaded))
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(declare-function notmuch-unthreaded
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(&optional query query-context target buffer-name open-target))
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(defun notmuch-saved-search-get (saved-search field)
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"Get FIELD from SAVED-SEARCH.
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If SAVED-SEARCH is a plist, this is just `plist-get', but for
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backwards compatibility, this also deals with the two other
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possible formats for SAVED-SEARCH: cons cells (NAME . QUERY) and
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lists (NAME QUERY COUNT-QUERY)."
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(cond
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((keywordp (car saved-search))
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(plist-get saved-search field))
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;; It is not a plist so it is an old-style entry.
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((consp (cdr saved-search))
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(pcase-let ((`(,name ,query ,count-query) saved-search))
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(cl-case field
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(:name name)
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(:query query)
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(:count-query count-query)
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(t nil))))
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(t
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(pcase-let ((`(,name . ,query) saved-search))
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(cl-case field
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(:name name)
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(:query query)
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(t nil))))))
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(defun notmuch-hello-saved-search-to-plist (saved-search)
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"Return a copy of SAVED-SEARCH in plist form.
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If saved search is a plist then just return a copy. In other
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cases, for backwards compatibility, convert to plist form and
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return that."
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(if (keywordp (car saved-search))
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(copy-sequence saved-search)
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(let ((fields (list :name :query :count-query))
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plist-search)
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(dolist (field fields plist-search)
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(let ((string (notmuch-saved-search-get saved-search field)))
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(when string
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(setq plist-search (append plist-search (list field string)))))))))
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(defun notmuch-hello--saved-searches-to-plist (symbol)
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"Extract a saved-search variable into plist form.
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The new style saved search is just a plist, but for backwards
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compatibility we use this function to extract old style saved
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searches so they still work in customize."
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(let ((saved-searches (default-value symbol)))
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(mapcar #'notmuch-hello-saved-search-to-plist saved-searches)))
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(define-widget 'notmuch-saved-search-plist 'list
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"A single saved search property list."
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:tag "Saved Search"
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:args '((list :inline t
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:format "%v"
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(group :format "%v" :inline t
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(const :format " Name: " :name)
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(string :format "%v"))
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(group :format "%v" :inline t
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(const :format " Query: " :query)
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(string :format "%v")))
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(checklist :inline t
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:format "%v"
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(group :format "%v" :inline t
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(const :format "Shortcut key: " :key)
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(key-sequence :format "%v"))
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(group :format "%v" :inline t
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(const :format "Count-Query: " :count-query)
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(string :format "%v"))
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(group :format "%v" :inline t
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(const :format "" :sort-order)
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(choice :tag " Sort Order"
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(const :tag "Default" nil)
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(const :tag "Oldest-first" oldest-first)
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(const :tag "Newest-first" newest-first)))
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(group :format "%v" :inline t
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(const :format "" :search-type)
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(choice :tag " Search Type"
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(const :tag "Search mode" nil)
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(const :tag "Tree mode" tree)
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(const :tag "Unthreaded mode" unthreaded))))))
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(defcustom notmuch-saved-searches
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`((:name "inbox" :query "tag:inbox" :key ,(kbd "i"))
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(:name "unread" :query "tag:unread" :key ,(kbd "u"))
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(:name "flagged" :query "tag:flagged" :key ,(kbd "f"))
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(:name "sent" :query "tag:sent" :key ,(kbd "t"))
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(:name "drafts" :query "tag:draft" :key ,(kbd "d"))
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(:name "all mail" :query "*" :key ,(kbd "a")))
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"A list of saved searches to display.
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The saved search can be given in 3 forms. The preferred way is as
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a plist. Supported properties are
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:name Name of the search (required).
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:query Search to run (required).
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:key Optional shortcut key for `notmuch-jump-search'.
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:count-query Optional extra query to generate the count
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shown. If not present then the :query property
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is used.
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:sort-order Specify the sort order to be used for the search.
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Possible values are `oldest-first', `newest-first'
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or nil. Nil means use the default sort order.
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:search-type Specify whether to run the search in search-mode,
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tree mode or unthreaded mode. Set to 'tree to specify tree
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mode, 'unthreaded to specify unthreaded mode, and set to nil
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(or anything except tree and unthreaded) to specify search mode.
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Other accepted forms are a cons cell of the form (NAME . QUERY)
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or a list of the form (NAME QUERY COUNT-QUERY)."
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;; The saved-search format is also used by the all-tags notmuch-hello
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;; section. This section generates its own saved-search list in one of
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;; the latter two forms.
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:get 'notmuch-hello--saved-searches-to-plist
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:type '(repeat notmuch-saved-search-plist)
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:tag "List of Saved Searches"
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:group 'notmuch-hello)
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(defcustom notmuch-hello-recent-searches-max 10
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"The number of recent searches to display."
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:type 'integer
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:group 'notmuch-hello)
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(defcustom notmuch-show-empty-saved-searches nil
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"Should saved searches with no messages be listed?"
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:type 'boolean
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:group 'notmuch-hello)
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(defun notmuch-sort-saved-searches (saved-searches)
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"Generate an alphabetically sorted saved searches list."
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(sort (copy-sequence saved-searches)
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(lambda (a b)
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(string< (notmuch-saved-search-get a :name)
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(notmuch-saved-search-get b :name)))))
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(defcustom notmuch-saved-search-sort-function nil
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"Function used to sort the saved searches for the notmuch-hello view.
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This variable controls how saved searches should be sorted. No
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sorting (nil) displays the saved searches in the order they are
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stored in `notmuch-saved-searches'. Sort alphabetically sorts the
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saved searches in alphabetical order. Custom sort function should
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be a function or a lambda expression that takes the saved
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searches list as a parameter, and returns a new saved searches
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list to be used. For compatibility with the various saved-search
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formats it should use notmuch-saved-search-get to access the
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fields of the search."
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:type '(choice (const :tag "No sorting" nil)
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(const :tag "Sort alphabetically" notmuch-sort-saved-searches)
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(function :tag "Custom sort function"
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:value notmuch-sort-saved-searches))
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:group 'notmuch-hello)
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(defvar notmuch-hello-indent 4
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"How much to indent non-headers.")
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(defcustom notmuch-show-logo t
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"Should the notmuch logo be shown?"
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:type 'boolean
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:group 'notmuch-hello)
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(defcustom notmuch-show-all-tags-list nil
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"Should all tags be shown in the notmuch-hello view?"
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:type 'boolean
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:group 'notmuch-hello)
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(defcustom notmuch-hello-tag-list-make-query nil
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"Function or string to generate queries for the all tags list.
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This variable controls which query results are shown for each tag
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in the \"all tags\" list. If nil, it will use all messages with
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that tag. If this is set to a string, it is used as a filter for
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messages having that tag (equivalent to \"tag:TAG and (THIS-VARIABLE)\").
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Finally this can be a function that will be called for each tag and
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should return a filter for that tag, or nil to hide the tag."
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:type '(choice (const :tag "All messages" nil)
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(const :tag "Unread messages" "tag:unread")
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(string :tag "Custom filter"
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:value "tag:unread")
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(function :tag "Custom filter function"))
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:group 'notmuch-hello)
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(defcustom notmuch-hello-hide-tags nil
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"List of tags to be hidden in the \"all tags\"-section."
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:type '(repeat string)
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:group 'notmuch-hello)
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(defface notmuch-hello-logo-background
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'((((class color)
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(background dark))
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(:background "#5f5f5f"))
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(((class color)
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(background light))
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(:background "white")))
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"Background colour for the notmuch logo."
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:group 'notmuch-hello
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:group 'notmuch-faces)
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(defcustom notmuch-column-control t
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"Controls the number of columns for saved searches/tags in notmuch view.
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This variable has three potential sets of values:
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- t: automatically calculate the number of columns possible based
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on the tags to be shown and the window width,
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- an integer: a lower bound on the number of characters that will
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be used to display each column,
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- a float: a fraction of the window width that is the lower bound
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on the number of characters that should be used for each
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column.
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So:
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- if you would like two columns of tags, set this to 0.5.
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- if you would like a single column of tags, set this to 1.0.
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- if you would like tags to be 30 characters wide, set this to
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30.
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- if you don't want to worry about all of this nonsense, leave
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this set to `t'."
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:type '(choice
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(const :tag "Automatically calculated" t)
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(integer :tag "Number of characters")
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(float :tag "Fraction of window"))
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:group 'notmuch-hello)
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(defcustom notmuch-hello-thousands-separator " "
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"The string used as a thousands separator.
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Typically \",\" in the US and UK and \".\" or \" \" in Europe.
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The latter is recommended in the SI/ISO 31-0 standard and by the
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International Bureau of Weights and Measures."
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:type 'string
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:group 'notmuch-hello)
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(defcustom notmuch-hello-mode-hook nil
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"Functions called after entering `notmuch-hello-mode'."
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:type 'hook
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:group 'notmuch-hello
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:group 'notmuch-hooks)
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(defcustom notmuch-hello-refresh-hook nil
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"Functions called after updating a `notmuch-hello' buffer."
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:type 'hook
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:group 'notmuch-hello
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:group 'notmuch-hooks)
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(defconst notmuch-hello-url "https://notmuchmail.org"
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"The `notmuch' web site.")
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(defvar notmuch-hello-custom-section-options
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'((:filter (string :tag "Filter for each tag"))
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(:filter-count (string :tag "Different filter to generate message counts"))
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(:initially-hidden (const :tag "Hide this section on startup" t))
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(:show-empty-searches (const :tag "Show queries with no matching messages" t))
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(:hide-if-empty (const :tag "Hide this section if all queries are empty
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\(and not shown by show-empty-searches)" t)))
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"Various customization-options for notmuch-hello-tags/query-section.")
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(define-widget 'notmuch-hello-tags-section 'lazy
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"Customize-type for notmuch-hello tag-list sections."
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:tag "Customized tag-list section (see docstring for details)"
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:type
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`(list :tag ""
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(const :tag "" notmuch-hello-insert-tags-section)
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(string :tag "Title for this section")
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(plist
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:inline t
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:options
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,(append notmuch-hello-custom-section-options
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'((:hide-tags (repeat :tag "Tags that will be hidden"
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string)))))))
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(define-widget 'notmuch-hello-query-section 'lazy
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"Customize-type for custom saved-search-like sections"
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:tag "Customized queries section (see docstring for details)"
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:type
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`(list :tag ""
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(const :tag "" notmuch-hello-insert-searches)
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(string :tag "Title for this section")
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(repeat :tag "Queries"
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(cons (string :tag "Name") (string :tag "Query")))
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(plist :inline t :options ,notmuch-hello-custom-section-options)))
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(defcustom notmuch-hello-sections
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(list #'notmuch-hello-insert-header
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#'notmuch-hello-insert-saved-searches
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#'notmuch-hello-insert-search
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#'notmuch-hello-insert-recent-searches
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#'notmuch-hello-insert-alltags
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#'notmuch-hello-insert-footer)
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"Sections for notmuch-hello.
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The list contains functions which are used to construct sections in
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notmuch-hello buffer. When notmuch-hello buffer is constructed,
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these functions are run in the order they appear in this list. Each
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function produces a section simply by adding content to the current
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buffer. A section should not end with an empty line, because a
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newline will be inserted after each section by `notmuch-hello'.
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Each function should take no arguments. The return value is
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ignored.
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For convenience an element can also be a list of the form (FUNC ARG1
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ARG2 .. ARGN) in which case FUNC will be applied to the rest of the
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list.
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A \"Customized tag-list section\" item in the customize-interface
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displays a list of all tags, optionally hiding some of them. It
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is also possible to filter the list of messages matching each tag
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by an additional filter query. Similarly, the count of messages
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displayed next to the buttons can be generated by applying a
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different filter to the tag query. These filters are also
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supported for \"Customized queries section\" items."
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:group 'notmuch-hello
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:type
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'(repeat
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(choice (function-item notmuch-hello-insert-header)
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(function-item notmuch-hello-insert-saved-searches)
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(function-item notmuch-hello-insert-search)
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(function-item notmuch-hello-insert-recent-searches)
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(function-item notmuch-hello-insert-alltags)
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(function-item notmuch-hello-insert-footer)
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(function-item notmuch-hello-insert-inbox)
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notmuch-hello-tags-section
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notmuch-hello-query-section
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(function :tag "Custom section"))))
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(defcustom notmuch-hello-auto-refresh t
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"Automatically refresh when returning to the notmuch-hello buffer."
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:group 'notmuch-hello
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:type 'boolean)
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(defvar notmuch-hello-hidden-sections nil
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"List of sections titles whose contents are hidden.")
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(defvar notmuch-hello-first-run t
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"True if `notmuch-hello' is run for the first time, set to nil afterwards.")
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(defun notmuch-hello-nice-number (n)
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(let (result)
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(while (> n 0)
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(push (% n 1000) result)
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(setq n (/ n 1000)))
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(setq result (or result '(0)))
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(apply #'concat
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(number-to-string (car result))
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(mapcar (lambda (elem)
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(format "%s%03d" notmuch-hello-thousands-separator elem))
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(cdr result)))))
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(define-widget 'notmuch-search-item 'item
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"A recent search."
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:format "%v\n"
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:value-create 'notmuch-search-item-value-create)
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(defun notmuch-search-item-value-create (widget)
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(let ((value (widget-get widget :value)))
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(widget-insert (make-string notmuch-hello-indent ?\s))
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(widget-create 'editable-field
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:size (widget-get widget :size)
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:parent widget
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:action #'notmuch-hello-search
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value)
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(widget-insert " ")
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(widget-create 'push-button
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:parent widget
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:notify #'notmuch-hello-add-saved-search
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"save")
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(widget-insert " ")
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(widget-create 'push-button
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:parent widget
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:notify #'notmuch-hello-delete-search-from-history
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"del")))
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(defun notmuch-search-item-field-width ()
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(max 8 ; Don't let the search boxes be less than 8 characters wide.
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(- (window-width)
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notmuch-hello-indent ; space at bol
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notmuch-hello-indent ; space at eol
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1 ; for the space before the [save] button
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6 ; for the [save] button
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1 ; for the space before the [del] button
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5))) ; for the [del] button
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(defun notmuch-hello-search (widget &rest _event)
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(let ((search (widget-value widget)))
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(when search
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(setq search (string-trim search))
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(let ((history-delete-duplicates t))
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(add-to-history 'notmuch-search-history search)))
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(notmuch-search search notmuch-search-oldest-first)))
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(defun notmuch-hello-add-saved-search (widget &rest _event)
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(let ((search (widget-value (widget-get widget :parent)))
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(name (completing-read "Name for saved search: "
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notmuch-saved-searches)))
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;; If an existing saved search with this name exists, remove it.
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(setq notmuch-saved-searches
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(cl-loop for elem in notmuch-saved-searches
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if (not (equal name
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(notmuch-saved-search-get elem :name)))
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collect elem))
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;; Add the new one.
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(customize-save-variable 'notmuch-saved-searches
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(add-to-list 'notmuch-saved-searches
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(list :name name :query search) t))
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(message "Saved '%s' as '%s'." search name)
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(notmuch-hello-update)))
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(defun notmuch-hello-delete-search-from-history (widget &rest _event)
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(when (y-or-n-p "Are you sure you want to delete this search? ")
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(let ((search (widget-value (widget-get widget :parent))))
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(setq notmuch-search-history
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(delete search notmuch-search-history)))
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(notmuch-hello-update)))
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(defun notmuch-hello-longest-label (searches-alist)
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(or (cl-loop for elem in searches-alist
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maximize (length (notmuch-saved-search-get elem :name)))
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0))
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(defun notmuch-hello-reflect-generate-row (ncols nrows row list)
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(let ((len (length list)))
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(cl-loop for col from 0 to (- ncols 1)
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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 (ceiling (length list) ncols)))
|
|
(cl-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)
|
|
(cond
|
|
((eq (widget-get widget :notmuch-search-type) 'tree)
|
|
(notmuch-tree (widget-get widget
|
|
:notmuch-search-terms)))
|
|
((eq (widget-get widget :notmuch-search-type) 'unthreaded)
|
|
(notmuch-unthreaded (widget-get widget
|
|
:notmuch-search-terms)))
|
|
(t
|
|
(notmuch-search (widget-get widget
|
|
:notmuch-search-terms)
|
|
(widget-get widget
|
|
:notmuch-search-oldest-first)))))
|
|
|
|
(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 9 wide (8 digits plus space), 1 for the space
|
|
;; after the name.
|
|
(+ 9 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 9 wide (8 digits plus space), 1 for the space
|
|
;; after the name.
|
|
(+ 9 1 widest)))))))
|
|
(cons tags-per-line (/ (max 1
|
|
(- (window-width) notmuch-hello-indent
|
|
;; Count is 9 wide (8 digits plus
|
|
;; space), 1 for the space after the
|
|
;; name.
|
|
(* tags-per-line (+ 9 1))))
|
|
tags-per-line))))
|
|
|
|
(defun notmuch-hello-filtered-query (query filter)
|
|
"Constructs a query to search all messages matching QUERY and FILTER.
|
|
|
|
If FILTER is a string, it is directly used in the returned query.
|
|
|
|
If FILTER is a function, it is called with QUERY as a parameter and
|
|
the string it returns is used as the query. If nil is returned,
|
|
the entry is hidden.
|
|
|
|
Otherwise, FILTER is ignored."
|
|
(cond
|
|
((functionp filter) (funcall filter query))
|
|
((stringp filter)
|
|
(concat "(" query ") and (" filter ")"))
|
|
(t query)))
|
|
|
|
(defun notmuch-hello-query-counts (query-list &rest options)
|
|
"Compute list of counts of matched messages from QUERY-LIST.
|
|
|
|
QUERY-LIST must be a list of saved-searches. Ideally each of
|
|
these is a plist but other options are available for backwards
|
|
compatibility: see `notmuch-saved-searches' for details.
|
|
|
|
The result is a list of plists each of which includes the
|
|
properties :name NAME, :query QUERY and :count COUNT, together
|
|
with any properties in the original saved-search.
|
|
|
|
The values :show-empty-searches, :filter and :filter-count from
|
|
options will be handled as specified for
|
|
`notmuch-hello-insert-searches'."
|
|
(with-temp-buffer
|
|
(dolist (elem query-list nil)
|
|
(let ((count-query (or (notmuch-saved-search-get elem :count-query)
|
|
(notmuch-saved-search-get elem :query))))
|
|
(insert
|
|
(replace-regexp-in-string
|
|
"\n" " "
|
|
(notmuch-hello-filtered-query count-query
|
|
(or (plist-get options :filter-count)
|
|
(plist-get options :filter))))
|
|
"\n")))
|
|
(unless (= (call-process-region (point-min) (point-max) notmuch-command
|
|
t t nil "count" "--batch") 0)
|
|
(notmuch-logged-error
|
|
"notmuch count --batch failed"
|
|
"Please check that the notmuch CLI is new enough to support `count
|
|
--batch'. In general we recommend running matching versions of
|
|
the CLI and emacs interface."))
|
|
(goto-char (point-min))
|
|
(cl-mapcan
|
|
(lambda (elem)
|
|
(let* ((elem-plist (notmuch-hello-saved-search-to-plist elem))
|
|
(search-query (plist-get elem-plist :query))
|
|
(filtered-query (notmuch-hello-filtered-query
|
|
search-query (plist-get options :filter)))
|
|
(message-count (prog1 (read (current-buffer))
|
|
(forward-line 1))))
|
|
(when (and filtered-query (or (plist-get options :show-empty-searches)
|
|
(> message-count 0)))
|
|
(setq elem-plist (plist-put elem-plist :query filtered-query))
|
|
(list (plist-put elem-plist :count message-count)))))
|
|
query-list)))
|
|
|
|
(defun notmuch-hello-insert-buttons (searches)
|
|
"Insert buttons for SEARCHES.
|
|
|
|
SEARCHES must be a list of plists each of which should contain at
|
|
least the properties :name NAME :query QUERY and :count COUNT,
|
|
where QUERY is the query to start when the button for the
|
|
corresponding entry is activated, and COUNT should be the number
|
|
of messages matching the query. Such a plist can be computed
|
|
with `notmuch-hello-query-counts'."
|
|
(let* ((widest (notmuch-hello-longest-label searches))
|
|
(tags-and-width (notmuch-hello-tags-per-line widest))
|
|
(tags-per-line (car tags-and-width))
|
|
(column-width (cdr tags-and-width))
|
|
(column-indent 0)
|
|
(count 0)
|
|
(reordered-list (notmuch-hello-reflect searches tags-per-line))
|
|
;; Hack the display of the buttons used.
|
|
(widget-push-button-prefix "")
|
|
(widget-push-button-suffix ""))
|
|
;; 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
|
|
(when (> column-indent 0)
|
|
(widget-insert (make-string column-indent ? )))
|
|
(let* ((name (plist-get elem :name))
|
|
(query (plist-get elem :query))
|
|
(oldest-first (cl-case (plist-get elem :sort-order)
|
|
(newest-first nil)
|
|
(oldest-first t)
|
|
(otherwise notmuch-search-oldest-first)))
|
|
(search-type (plist-get elem :search-type))
|
|
(msg-count (plist-get elem :count)))
|
|
(widget-insert (format "%8s "
|
|
(notmuch-hello-nice-number msg-count)))
|
|
(widget-create 'push-button
|
|
:notify #'notmuch-hello-widget-search
|
|
:notmuch-search-terms query
|
|
:notmuch-search-oldest-first oldest-first
|
|
:notmuch-search-type search-type
|
|
name)
|
|
(setq column-indent
|
|
(1+ (max 0 (- column-width (length name)))))))
|
|
(cl-incf count)
|
|
(when (eq (% count tags-per-line) 0)
|
|
(setq column-indent 0)
|
|
(widget-insert "\n")))
|
|
reordered-list)
|
|
;; If the last line was not full (and hence did not include a
|
|
;; carriage return), insert one now.
|
|
(unless (eq (% count tags-per-line) 0)
|
|
(widget-insert "\n"))))
|
|
|
|
(defimage notmuch-hello-logo ((:type png :file "notmuch-logo.png")))
|
|
|
|
(defun notmuch-hello-update ()
|
|
"Update the notmuch-hello buffer."
|
|
;; Lazy - rebuild everything.
|
|
(interactive)
|
|
(notmuch-hello t))
|
|
|
|
(defun notmuch-hello-window-configuration-change ()
|
|
"Hook function to update the hello buffer when it is switched to."
|
|
(let ((hello-buf (get-buffer "*notmuch-hello*"))
|
|
(do-refresh nil))
|
|
;; Consider all windows in the currently selected frame, since
|
|
;; that's where the configuration change happened. This also
|
|
;; refreshes our snapshot of all windows, so we have to do this
|
|
;; even if we know we won't refresh (e.g., hello-buf is null).
|
|
(dolist (window (window-list))
|
|
(let ((last-buf (window-parameter window 'notmuch-hello-last-buffer))
|
|
(cur-buf (window-buffer window)))
|
|
(unless (eq last-buf cur-buf)
|
|
;; This window changed or is new. Update recorded buffer
|
|
;; for next time.
|
|
(set-window-parameter window 'notmuch-hello-last-buffer cur-buf)
|
|
(when (and (eq cur-buf hello-buf) last-buf)
|
|
;; The user just switched to hello in this window (hello
|
|
;; is currently visible, was not visible on the last
|
|
;; configuration change, and this is not a new window)
|
|
(setq do-refresh t)))))
|
|
(when (and do-refresh notmuch-hello-auto-refresh)
|
|
;; Refresh hello as soon as we get back to redisplay. On Emacs
|
|
;; 24, we can't do it right here because something in this
|
|
;; hook's call stack overrides hello's point placement.
|
|
;; FIXME And on Emacs releases that we still support?
|
|
(run-at-time nil nil #'notmuch-hello t))
|
|
(unless hello-buf
|
|
;; Clean up hook
|
|
(remove-hook 'window-configuration-change-hook
|
|
#'notmuch-hello-window-configuration-change))))
|
|
|
|
(defvar notmuch-hello-mode-map
|
|
;; Inherit both widget-keymap and notmuch-common-keymap. We have
|
|
;; to use make-sparse-keymap to force this to be a new keymap (so
|
|
;; that when we modify map it does not modify widget-keymap).
|
|
(let ((map (make-composed-keymap (list (make-sparse-keymap) widget-keymap))))
|
|
(set-keymap-parent map notmuch-common-keymap)
|
|
(define-key map (kbd "<C-tab>") 'widget-backward)
|
|
map)
|
|
"Keymap for \"notmuch hello\" buffers.")
|
|
|
|
(define-derived-mode notmuch-hello-mode fundamental-mode "notmuch-hello"
|
|
"Major mode for convenient notmuch navigation. This is your entry portal into notmuch.
|
|
|
|
Saved searches are \"bookmarks\" for arbitrary queries. Hit RET
|
|
or click on a saved search to view matching threads. Edit saved
|
|
searches with the `edit' button. Type `\\[notmuch-jump-search]'
|
|
in any Notmuch screen for quick access to saved searches that
|
|
have shortcut keys.
|
|
|
|
Type new searches in the search box and hit RET to view matching
|
|
threads. Hit RET in a recent search box to re-submit a previous
|
|
search. Edit it first if you like. Save a recent search to saved
|
|
searches with the `save' button.
|
|
|
|
Hit `\\[notmuch-search]' or `\\[notmuch-tree]' in any Notmuch
|
|
screen to search for messages and view matching threads or
|
|
messages, respectively. Recent searches are available in the
|
|
minibuffer history.
|
|
|
|
Expand the all tags view with the `show' button (and collapse
|
|
again with the `hide' button). Hit RET or click on a tag name to
|
|
view matching threads.
|
|
|
|
Hit `\\[notmuch-refresh-this-buffer]' to refresh the screen and
|
|
`\\[notmuch-bury-or-kill-this-buffer]' to quit.
|
|
|
|
The screen may be customized via `\\[customize]'.
|
|
|
|
Complete list of currently available key bindings:
|
|
|
|
\\{notmuch-hello-mode-map}"
|
|
(setq notmuch-buffer-refresh-function #'notmuch-hello-update)
|
|
;;(setq buffer-read-only t)
|
|
)
|
|
|
|
(defun notmuch-hello-generate-tag-alist (&optional hide-tags)
|
|
"Return an alist from tags to queries to display in the all-tags section."
|
|
(cl-mapcan (lambda (tag)
|
|
(and (not (member tag hide-tags))
|
|
(list (cons tag
|
|
(concat "tag:"
|
|
(notmuch-escape-boolean-term tag))))))
|
|
(process-lines notmuch-command "search" "--output=tags" "*")))
|
|
|
|
(defun notmuch-hello-insert-header ()
|
|
"Insert the default notmuch-hello header."
|
|
(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"
|
|
(notmuch-hello-nice-number
|
|
(string-to-number
|
|
(car (process-lines notmuch-command "count")))))
|
|
(widget-insert " messages.\n")))
|
|
|
|
(defun notmuch-hello-insert-saved-searches ()
|
|
"Insert the saved-searches section."
|
|
(let ((searches (notmuch-hello-query-counts
|
|
(if notmuch-saved-search-sort-function
|
|
(funcall notmuch-saved-search-sort-function
|
|
notmuch-saved-searches)
|
|
notmuch-saved-searches)
|
|
:show-empty-searches notmuch-show-empty-saved-searches)))
|
|
(when searches
|
|
(widget-insert "Saved searches: ")
|
|
(widget-create 'push-button
|
|
:notify (lambda (&rest ignore)
|
|
(customize-variable 'notmuch-saved-searches))
|
|
"edit")
|
|
(widget-insert "\n\n")
|
|
(let ((start (point)))
|
|
(notmuch-hello-insert-buttons searches)
|
|
(indent-rigidly start (point) notmuch-hello-indent)))))
|
|
|
|
(defun notmuch-hello-insert-search ()
|
|
"Insert a search widget."
|
|
(widget-insert "Search: ")
|
|
(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 #'notmuch-hello-search)
|
|
;; Add an invisible dot to make `widget-end-of-line' ignore
|
|
;; trailing spaces in the search widget field. A dot is used
|
|
;; instead of a space to make `show-trailing-whitespace'
|
|
;; happy, i.e. avoid it marking the whole line as trailing
|
|
;; spaces.
|
|
(widget-insert ".")
|
|
(put-text-property (1- (point)) (point) 'invisible t)
|
|
(widget-insert "\n"))
|
|
|
|
(defun notmuch-hello-insert-recent-searches ()
|
|
"Insert recent searches."
|
|
(when notmuch-search-history
|
|
(widget-insert "Recent searches: ")
|
|
(widget-create
|
|
'push-button
|
|
:notify (lambda (&rest _ignore)
|
|
(when (y-or-n-p "Are you sure you want to clear the searches? ")
|
|
(setq notmuch-search-history nil)
|
|
(notmuch-hello-update)))
|
|
"clear")
|
|
(widget-insert "\n\n")
|
|
(let ((width (notmuch-search-item-field-width)))
|
|
(dolist (search (seq-take notmuch-search-history
|
|
notmuch-hello-recent-searches-max))
|
|
(widget-create 'notmuch-search-item :value search :size width)))))
|
|
|
|
(defun notmuch-hello-insert-searches (title query-list &rest options)
|
|
"Insert a section with TITLE showing a list of buttons made from QUERY-LIST.
|
|
|
|
QUERY-LIST should ideally be a plist but for backwards
|
|
compatibility other forms are also accepted (see
|
|
`notmuch-saved-searches' for details). The plist should
|
|
contain keys :name and :query; if :count-query is also present
|
|
then it specifies an alternate query to be used to generate the
|
|
count for the associated search.
|
|
|
|
Supports the following entries in OPTIONS as a plist:
|
|
:initially-hidden - if non-nil, section will be hidden on startup
|
|
:show-empty-searches - show buttons with no matching messages
|
|
:hide-if-empty - hide if no buttons would be shown
|
|
(only makes sense without :show-empty-searches)
|
|
:filter - This can be a function that takes the search query as its argument and
|
|
returns a filter to be used in conjunction with the query for that search or nil
|
|
to hide the element. This can also be a string that is used as a combined with
|
|
each query using \"and\".
|
|
:filter-count - Separate filter to generate the count displayed each search. Accepts
|
|
the same values as :filter. If :filter and :filter-count are specified, this
|
|
will be used instead of :filter, not in conjunction with it."
|
|
(widget-insert title ": ")
|
|
(when (and notmuch-hello-first-run (plist-get options :initially-hidden))
|
|
(add-to-list 'notmuch-hello-hidden-sections title))
|
|
(let ((is-hidden (member title notmuch-hello-hidden-sections))
|
|
(start (point)))
|
|
(if is-hidden
|
|
(widget-create 'push-button
|
|
:notify `(lambda (widget &rest ignore)
|
|
(setq notmuch-hello-hidden-sections
|
|
(delete ,title notmuch-hello-hidden-sections))
|
|
(notmuch-hello-update))
|
|
"show")
|
|
(widget-create 'push-button
|
|
:notify `(lambda (widget &rest ignore)
|
|
(add-to-list 'notmuch-hello-hidden-sections
|
|
,title)
|
|
(notmuch-hello-update))
|
|
"hide"))
|
|
(widget-insert "\n")
|
|
(unless is-hidden
|
|
(let ((searches (apply 'notmuch-hello-query-counts query-list options)))
|
|
(when (or (not (plist-get options :hide-if-empty))
|
|
searches)
|
|
(widget-insert "\n")
|
|
(notmuch-hello-insert-buttons searches)
|
|
(indent-rigidly start (point) notmuch-hello-indent))))))
|
|
|
|
(defun notmuch-hello-insert-tags-section (&optional title &rest options)
|
|
"Insert a section displaying all tags with message counts.
|
|
|
|
TITLE defaults to \"All tags\".
|
|
Allowed options are those accepted by `notmuch-hello-insert-searches' and the
|
|
following:
|
|
|
|
:hide-tags - List of tags that should be excluded."
|
|
(apply 'notmuch-hello-insert-searches
|
|
(or title "All tags")
|
|
(notmuch-hello-generate-tag-alist (plist-get options :hide-tags))
|
|
options))
|
|
|
|
(defun notmuch-hello-insert-inbox ()
|
|
"Show an entry for each saved search and inboxed messages for each tag."
|
|
(notmuch-hello-insert-searches "What's in your inbox"
|
|
(append
|
|
notmuch-saved-searches
|
|
(notmuch-hello-generate-tag-alist))
|
|
:filter "tag:inbox"))
|
|
|
|
(defun notmuch-hello-insert-alltags ()
|
|
"Insert a section displaying all tags and associated message counts."
|
|
(notmuch-hello-insert-tags-section
|
|
nil
|
|
:initially-hidden (not notmuch-show-all-tags-list)
|
|
:hide-tags notmuch-hello-hide-tags
|
|
:filter notmuch-hello-tag-list-make-query))
|
|
|
|
(defun notmuch-hello-insert-footer ()
|
|
"Insert the notmuch-hello footer."
|
|
(let ((start (point)))
|
|
(widget-insert "Hit `?' for context-sensitive help in any Notmuch screen.\n")
|
|
(widget-insert "Customize ")
|
|
(widget-create 'link
|
|
:notify (lambda (&rest ignore)
|
|
(customize-group 'notmuch))
|
|
:button-prefix "" :button-suffix ""
|
|
"Notmuch")
|
|
(widget-insert " or ")
|
|
(widget-create 'link
|
|
:notify (lambda (&rest ignore)
|
|
(customize-variable 'notmuch-hello-sections))
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|
:button-prefix "" :button-suffix ""
|
|
"this page.")
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|
(let ((fill-column (- (window-width) notmuch-hello-indent)))
|
|
(center-region start (point)))))
|
|
|
|
;;;###autoload
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|
(defun notmuch-hello (&optional no-display)
|
|
"Run notmuch and display saved searches, known tags, etc."
|
|
(interactive)
|
|
(notmuch-assert-cli-sane)
|
|
;; This may cause a window configuration change, so if the
|
|
;; auto-refresh hook is already installed, avoid recursive refresh.
|
|
(let ((notmuch-hello-auto-refresh nil))
|
|
(if no-display
|
|
(set-buffer "*notmuch-hello*")
|
|
(pop-to-buffer-same-window "*notmuch-hello*")))
|
|
;; Install auto-refresh hook
|
|
(when notmuch-hello-auto-refresh
|
|
(add-hook 'window-configuration-change-hook
|
|
#'notmuch-hello-window-configuration-change))
|
|
(let ((target-line (line-number-at-pos))
|
|
(target-column (current-column))
|
|
(inhibit-read-only t))
|
|
;; Delete all editable widget fields. Editable widget fields are
|
|
;; tracked in a buffer local variable `widget-field-list' (and
|
|
;; others). If we do `erase-buffer' without properly deleting the
|
|
;; widgets, some widget-related functions are confused later.
|
|
(mapc 'widget-delete widget-field-list)
|
|
(erase-buffer)
|
|
(unless (eq major-mode 'notmuch-hello-mode)
|
|
(notmuch-hello-mode))
|
|
(let ((all (overlay-lists)))
|
|
;; Delete all the overlays.
|
|
(mapc 'delete-overlay (car all))
|
|
(mapc 'delete-overlay (cdr all)))
|
|
(mapc
|
|
(lambda (section)
|
|
(let ((point-before (point)))
|
|
(if (functionp section)
|
|
(funcall section)
|
|
(apply (car section) (cdr section)))
|
|
;; don't insert a newline when the previous section didn't
|
|
;; show anything.
|
|
(unless (eq (point) point-before)
|
|
(widget-insert "\n"))))
|
|
notmuch-hello-sections)
|
|
(widget-setup)
|
|
;; Move point back to where it was before refresh. Use line and
|
|
;; column instead of point directly to be insensitive to additions
|
|
;; and removals of text within earlier lines.
|
|
(goto-char (point-min))
|
|
(forward-line (1- target-line))
|
|
(move-to-column target-column))
|
|
(run-hooks 'notmuch-hello-refresh-hook)
|
|
(setq notmuch-hello-first-run nil))
|
|
|
|
;;
|
|
|
|
(provide 'notmuch-hello)
|
|
|
|
;;; notmuch-hello.el ends here
|