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org-ql-view.el
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;;; org-ql-view.el --- Agenda-like view based on org-ql -*- lexical-binding: t; -*-
;; Copyright (C) 2019-2023 Adam Porter
;; Author: Adam Porter <adam@alphapapa.net>
;; Url: https://github.com/alphapapa/org-ql
;;; Commentary:
;; This library is part of the package `org-ql'; it's not a standalone
;; library. It displays strings in buffers similar to Org Agenda
;; buffers.
;;; License:
;; This program 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.
;; This program 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 this program. If not, see <https://www.gnu.org/licenses/>.
;;; Code:
;;;; Requirements
(require 'cl-lib)
(require 'crm)
(require 'map)
(require 'org)
(require 'org-element)
(require 'org-agenda)
(require 'seq)
(require 'rx)
(require 'subr-x)
(require 'org-ql)
(declare-function org-ql-search "org-ql-search" t)
(declare-function org-ql-search--org-link-store-props "org-ql-search" t)
(declare-function org-ql--normalize-query "org-ql" t t)
(require 'dash)
(require 's)
(require 'org-super-agenda)
(require 'ov)
(require 'ts)
;;;; Faces
(defface org-ql-view-due-date
'((t (:slant italic :weight bold)))
"Face for due dates in `org-ql-view' views."
:group 'org-ql)
;;;; Variables
(defvar org-ql-view-buffer-name-prefix "*Org QL View:"
"Prefix for names of `org-ql-view' buffers.")
(defvar org-ql-view-buffer nil
"Optionally set the target buffer for `org-ql-view' commands.
Includes `org-ql-search'. Helpful when passing a buffer argument
down a chain of function calls would be awkward.")
(defvar org-ql-view-map
(let ((map (make-sparse-keymap)))
(set-keymap-parent map org-agenda-mode-map)
(define-key map "g" #'org-ql-view-refresh)
(define-key map "r" #'org-ql-view-refresh)
(define-key map "q" #'bury-buffer)
(define-key map "v" #'org-ql-view-dispatch)
(define-key map (kbd "C-x C-s") #'org-ql-view-save)
map)
"Keymap for `org-ql-view', `org-ql-search', and `org-ql-views' views.
Based on `org-agenda-mode-map'.")
(defvar org-ql-view-list-map
(let ((map (make-sparse-keymap)))
(define-key map (kbd "RET") #'org-ql-view-switch)
(define-key map [mouse-1] #'org-ql-view-switch)
(define-key map "c" #'org-ql-view-customize)
map)
"Keymap for `org-ql-view' view list buffer.")
;; For refreshing results buffers.
(defvar-local org-ql-view-buffers-files nil)
(defvar-local org-ql-view-query nil)
(defvar-local org-ql-view-sort nil)
(defvar-local org-ql-view-narrow nil)
(defvar-local org-ql-view-super-groups nil)
(defvar-local org-ql-view-title nil)
;;;; Customization
(defgroup org-ql-view nil
"Options for `org-ql-view'."
:group 'org-ql)
(defcustom org-ql-view-display-buffer-action nil
"Action argument passed through `pop-to-buffer' to `display-buffer', which see."
:type '(cons function alist))
(defcustom org-ql-view-list-side 'right
"Which side to show the view list on."
:type '(choice (const :tag "Left" left)
(const :tag "Right" right)))
(defcustom org-ql-view-no-other-window nil
"Whether `other-window' commands should cycle through `org-ql-views' sidebar.
See info node `(elisp)Cyclic Window Ordering'."
:type 'boolean)
(defcustom org-ql-view-list-slot 0
"Side-window slot for Org QL Views list buffer."
:type 'integer)
(defcustom org-ql-view-sidebar-sort-views nil
"Sort `org-ql-views' in `org-ql-view-sidebar'."
:type 'boolean)
(defcustom org-ql-views
(list (cons "Overview: Agenda-like"
(list :buffers-files #'org-agenda-files
:query '(and (not (done))
(or (habit)
(deadline auto)
(scheduled :to today)
(ts-active :on today)))
:sort '(todo priority date)
:super-groups 'org-super-agenda-groups
:title "Agenda-like"))
(cons "Overview: NEXT tasks"
(list :buffers-files #'org-agenda-files
:query '(todo "NEXT")
:sort '(date priority)
:super-groups 'org-super-agenda-groups
:title "Overview: NEXT tasks"))
(cons "Calendar: Today"
(list :buffers-files #'org-agenda-files
:query '(ts-active :on today)
:title "Today"
:super-groups 'org-super-agenda-groups
:sort '(priority)))
(cons "Calendar: This week"
(lambda ()
"Show items with an active timestamp during this calendar week."
(interactive)
(let* ((ts (ts-now))
(beg-of-week (->> ts
(ts-adjust 'day (- (ts-dow (ts-now))))
(ts-apply :hour 0 :minute 0 :second 0)))
(end-of-week (->> ts
(ts-adjust 'day (- 6 (ts-dow (ts-now))))
(ts-apply :hour 23 :minute 59 :second 59))))
(org-ql-search (org-agenda-files)
`(ts-active :from ,beg-of-week
:to ,end-of-week)
:title "This week"
:super-groups 'org-super-agenda-groups
:sort '(priority)))))
(cons "Calendar: Next week"
(lambda ()
"Show items with an active timestamp during the next calendar week."
(interactive)
(let* ((ts (ts-adjust 'day 7 (ts-now)))
(beg-of-week (->> ts
(ts-adjust 'day (- (ts-dow (ts-now))))
(ts-apply :hour 0 :minute 0 :second 0)))
(end-of-week (->> ts
(ts-adjust 'day (- 6 (ts-dow (ts-now))))
(ts-apply :hour 23 :minute 59 :second 59))))
(org-ql-search (org-agenda-files)
`(ts-active :from ,beg-of-week
:to ,end-of-week)
:title "Next week"
:super-groups 'org-super-agenda-groups
:sort '(priority)))))
(cons "Review: Recently timestamped" #'org-ql-view-recent-items)
(cons (propertize "Review: Dangling tasks"
'help-echo "Tasks whose ancestor is done")
(list :buffers-files #'org-agenda-files
:query '(and (todo)
(ancestors (done)))
:title (propertize "Review: Dangling tasks"
'help-echo "Tasks whose ancestor is done")
:sort '(todo priority date)
:super-groups '((:auto-parent t))))
(cons (propertize "Review: Stale tasks"
'help-echo "Tasks without a timestamp in the past 2 weeks")
(list :buffers-files #'org-agenda-files
:query '(and (todo)
(not (ts :from -14)))
:title (propertize "Review: Stale tasks"
'help-echo "Tasks without a timestamp in the past 2 weeks")
:sort '(todo priority date)
:super-groups '((:auto-parent t))))
(cons (propertize "Review: Stuck projects"
'help-echo "Tasks with sub-tasks but no NEXT sub-tasks")
(list :buffers-files #'org-agenda-files
:query '(and (todo)
(descendants (todo))
(not (descendants (todo "NEXT"))))
:title (propertize "Review: Stuck projects"
'help-echo "Tasks with sub-tasks but no NEXT sub-tasks")
:sort '(date priority)
:super-groups 'org-super-agenda-groups)))
"Alist of `org-ql-view' commands."
:type
'(alist
:key-type (string :tag "Name")
:value-type
(choice (function :tag "Function which calls `org-ql-search'")
(plist :tag "Org QL Search"
:options (((const :tag "Buffers/files" :buffers-files)
(choice (function-item :tag "Org Agenda Files" org-agenda-files)
(repeat :tag "Buffer or file names" string)
(function :tag "Function which returns a list of buffers and/or files" list)))
((const :tag "Query" :query) (sexp :tag "org-ql query sexp"))
((const :tag "Search title" :title) string)
((const :tag "Sort-by" :sort) (repeat
(choice (const date)
(const deadline)
(const scheduled)
(const todo)
(const priority)
(const random)
(const reverse)
(function :tag "Custom comparator"))))
((const :tag "Group-by" :super-groups)
(choice (variable-item :tag "Default org-super-agenda groups" org-super-agenda-groups)
(sexp :tag "org-super-agenda grouping expression")
(variable :tag "Variable holding org-super-agenda grouping expression"))))))))
;;;; Commands
;;;###autoload
(defun org-ql-view (&optional name)
"Choose and display the `org-ql-views' view NAME.
Interactively, prompt for NAME."
(interactive (list (completing-read "View: " (mapcar #'car org-ql-views))))
(let* ((view (alist-get name org-ql-views nil nil #'string=))
(window (--find (string-prefix-p org-ql-view-buffer-name-prefix (buffer-name (window-buffer it)))
(window-list)))
(org-ql-view-display-buffer-action (when (and window (not org-ql-view-display-buffer-action))
(cons #'display-buffer-same-window nil))))
(when window
(select-window window))
(cl-typecase view
(function (call-interactively view))
(list (-let* (((&plist :buffers-files :query :sort :narrow :super-groups :title) view)
(super-groups (cl-typecase super-groups
(symbol (symbol-value super-groups))
(list super-groups))))
(org-ql-search buffers-files query
:super-groups super-groups :narrow narrow :sort sort :title title
:buffer org-ql-view-buffer))))))
;;;###autoload
(cl-defun org-ql-view-recent-items
(&key num-days (type 'ts)
(files (org-agenda-files))
(groups '((:auto-parent t)
(:auto-todo t))))
"Show items in FILES from last NUM-DAYS days with timestamps of TYPE.
TYPE may be `ts', `ts-active', `ts-inactive', `clocked', or
`closed'."
(interactive (list :num-days (read-number "Days: ")
:type (->> '(ts ts-active ts-inactive clocked closed)
(completing-read "Timestamp type: ")
intern)))
;; It doesn't make much sense to use other date-based selectors to
;; look into the past, so to prevent confusion, we won't allow them.
(-let* ((query (pcase-exhaustive type
((or 'ts 'ts-active 'ts-inactive)
`(,type :from ,(- num-days) :to 0))
((or 'clocked 'closed)
`(,type :from ,(- num-days) :to 0)))))
(org-ql-search files query
:title "Recent items"
:sort '(todo priority date)
:super-groups groups)))
;;;###autoload
(cl-defun org-ql-view-sidebar (&key (slot org-ql-view-list-slot))
"Show `org-ql-view' view list sidebar.
SLOT is passed to `display-buffer-in-side-window', which see."
;; TODO: Update sidebar when `org-ql-views' changes.
(interactive)
(select-window
(or (get-buffer-window (org-ql-view--list-buffer))
(display-buffer-in-side-window
(org-ql-view--list-buffer)
(list (cons 'side org-ql-view-list-side)
(cons 'slot slot)
(cons 'window-parameters (list (cons 'no-delete-other-windows t)
(cons 'no-other-window org-ql-view-no-other-window))))))))
(defun org-ql-view-switch ()
"Switch to view at point."
(interactive)
(let ((key (buffer-substring-no-properties (pos-bol) (pos-eol))))
(unless (string-empty-p key)
(ov-clear :org-ql-view-selected)
(ov (pos-bol) (1+ (pos-eol)) :org-ql-view-selected t
'face '(:weight bold :inherit highlight))
(org-ql-view key))))
(defun org-ql-view-refresh (&optional prompt)
"Refresh current `org-ql-search' buffer.
If PROMPT is non-nil (interactively, with prefix), prompt to
update search arguments."
(interactive "P")
(unless org-ql-view-buffers-files
(user-error "Not an Org QL View buffer"))
(let* ((current-line (buffer-substring-no-properties (line-beginning-position) (line-end-position)))
(old-pos (point))
(defaults (list org-ql-view-buffers-files
org-ql-view-query
:sort org-ql-view-sort
:narrow org-ql-view-narrow
:super-groups org-ql-view-super-groups
:title org-ql-view-title))
(org-ql-view-buffer (current-buffer)))
(if prompt
(call-interactively #'org-ql-search)
(apply #'org-ql-search defaults))
;; Now in the results buffer.
(rename-buffer (format "%s %s*"
org-ql-view-buffer-name-prefix
(or org-ql-view-title org-ql-view-query))
;; Avoid any errors in case a buffer by this name already exists.
'unique)
(goto-char (point-min))
(or (when (search-forward current-line nil t)
(beginning-of-line))
(goto-char old-pos))
(message "View refreshed")))
(defun org-ql-view-save ()
"Save current `org-ql-search' buffer to `org-ql-views'."
(interactive)
(let* ((name (read-string "Save view as: " org-ql-view-title))
;; Bind `org-ql-view-title' to the name that was read, in case
;; it's different, which `org-ql-view--plist' will pick up.
(org-ql-view-title name)
(plist (org-ql-view--plist (current-buffer))))
(when (or (not (map-elt org-ql-views name nil))
(yes-or-no-p (format "Overwrite view \"%s\"?" name)))
(setf (map-elt org-ql-views name nil #'equal) plist)
(customize-set-variable 'org-ql-views org-ql-views)
(customize-mark-to-save 'org-ql-views)
(custom-save-all))))
(defun org-ql-view-delete ()
"Delete current view (with confirmation)."
(interactive)
(when (yes-or-no-p (format "Delete view \"%s\"?" org-ql-view-title))
(setf org-ql-views
(--remove (equal (car it) org-ql-view-title)
org-ql-views))
(customize-set-variable 'org-ql-views org-ql-views)
(customize-mark-to-save 'org-ql-views)
(custom-save-all)))
(defun org-ql-view-customize ()
"Customize view at point in `org-ql-view-sidebar' buffer."
(interactive)
(let ((key (buffer-substring-no-properties (pos-bol) (pos-eol))))
(customize-option 'org-ql-views)
(search-forward (concat "Name: " key))))
;;;; Functions
(defun org-ql-view--plist (buffer)
"Return plist describing Org QL View in BUFFER."
(with-current-buffer buffer
(list :buffers-files org-ql-view-buffers-files
:query org-ql-view-query
:sort org-ql-view-sort
:narrow org-ql-view-narrow
:super-groups org-ql-view-super-groups
:title org-ql-view-title)))
(defun org-ql-view--list-buffer ()
"Return view list buffer."
(with-current-buffer (get-buffer-create "*Org QL View List*")
(use-local-map org-ql-view-list-map)
(setf buffer-read-only t
mode-line-format nil
header-line-format (propertize " Org QL Views"
'face 'header-line))
(let ((inhibit-read-only t))
(erase-buffer)
(->> org-ql-views
(-map #'car)
(-sort (if org-ql-view-sidebar-sort-views
#'string<
#'ignore))
(s-join "\n")
insert))
(current-buffer)))
(defvar bookmark-make-record-function)
(cl-defun org-ql-view--display (&key (buffer org-ql-view-buffer) header strings)
"Display STRING in `org-ql-view' BUFFER.
BUFFER may be a buffer, or a string naming a buffer, which is
reused if it already exists. `org-ql-view-buffer' is used by
default.
HEADER is a string displayed in the buffer's header line.
The following special variables, if non-nil, are set
buffer-locally to preserve their value in the buffer for
subsequent refreshing of the buffer: `org-ql-view-buffers-files',
`org-ql-view-query', `org-ql-view-sort', `org-ql-view-narrow',
`org-ql-view-super-groups', `org-ql-title.'"
(declare (indent defun))
(let* ((vars (list 'org-ql-view-buffers-files 'org-ql-view-query
'org-ql-view-sort 'org-ql-view-narrow
'org-ql-view-super-groups 'org-ql-view-title))
;; Save the values of variables which are set buffer-locally in the
;; results buffer, which we want to override and set buffer-locally again.
(vals (cl-loop for symbol in vars
collect (cons symbol (symbol-value symbol))))
(buffer (cl-etypecase buffer
(string (org-ql-view--buffer buffer))
(null (org-ql-view--buffer buffer))
(buffer buffer))))
(with-current-buffer buffer
(setq-local bookmark-make-record-function #'org-ql-view-bookmark-make-record)
(use-local-map org-ql-view-map)
;; Prepare buffer, saving data for refreshing.
(cl-loop for symbol in vars
do (progn
(kill-local-variable symbol)
(set (make-local-variable symbol) (alist-get symbol vals nil nil #'equal))))
(setf header-line-format header)
;; Clear buffer, insert entries, etc.
(let ((inhibit-read-only t))
(erase-buffer)
(dolist (string strings)
(insert string "\n"))
(insert "\n")
(pop-to-buffer (current-buffer) org-ql-view-display-buffer-action)
(org-agenda-finalize)
(goto-char (point-min))))))
(cl-defun org-ql-view--header-line-format (&key buffers-files query title)
"Return `header-line-format' for BUFFERS-FILES and QUERY.
If TITLE, prepend it to the header."
(let* ((title (if title
(concat (propertize "View:" 'face 'transient-argument)
title " ")
""))
(query-formatted (when query
(org-ql-view--format-query query)))
(query-width (when query-formatted
(length query-formatted)))
(query-propertized (when query-formatted
(propertize (org-ql-view--font-lock-string 'emacs-lisp-mode query-formatted)
'help-echo query-formatted)))
(available-width (max 0 (- (window-width) (length "In: ")
(length "Query: ") (or query-width 0)
4)))
(buffers-files-formatted (when buffers-files
(format "%s" (org-ql-view--contract-buffers-files buffers-files))))
(buffers-files-formatted (when buffers-files-formatted
(propertize (->> buffers-files-formatted
(org-ql-view--font-lock-string 'emacs-lisp-mode)
(s-truncate available-width))
'help-echo buffers-files-formatted))))
(concat title
(when query (propertize "Query:" 'face 'transient-argument))
(when query query-propertized)
(when query " ")
(when buffers-files
(propertize "In:" 'face 'transient-argument))
(when buffers-files-formatted
buffers-files-formatted))))
(defun org-ql-view--format-query (query)
"Return QUERY formatted as a string.
Makes QUERY more readable, e.g. timestamp objects are replaced
with human-readable strings."
(cl-labels ((rec (form)
(cl-typecase form
(ts (ts-format form))
(cons (cons (rec (car form))
(rec (cdr form))))
(otherwise form))))
(format "%S" (rec query))))
(defun org-ql-view--font-lock-string (mode s)
"Return string S font-locked according to MODE."
;; FIXME: Is this the proper way to do this? It works, but I feel like there must be a built-in way...
(with-temp-buffer
(delay-mode-hooks
(insert s)
(funcall mode)
(font-lock-ensure)
(buffer-string))))
(defun org-ql-view--buffer (&optional name)
"Return `org-ql-view' buffer, creating it if necessary.
If NAME is non-nil, return buffer by that name instead of using
default buffer."
(with-current-buffer (get-buffer-create (or name (concat org-ql-view-buffer-name-prefix "*")))
(unless (eq major-mode 'org-agenda-mode)
(org-agenda-mode)
(setf buffer-read-only t))
(current-buffer)))
(defun org-ql-view--format-relative-date (difference)
;; MAYBE: Make this a `defsubst'.
"Return relative date string for DIFFERENCE.
DIFFERENCE should be an integer number of days, positive for
dates in the past, and negative for dates in the future."
(cond ((> difference 0)
(format "%sd ago" difference))
((< difference 0)
(format "in %sd" (* -1 difference)))
(t "today")))
;;;; Bookmarks
;; Support for Emacs bookmarks.
(require 'bookmark)
(defun org-ql-view-bookmark-make-record ()
"Return a bookmark record for the current Org QL View buffer."
(cl-labels ((file-nameize (b-f)
(abbreviate-file-name
(cl-typecase b-f
(string b-f)
(buffer (or (buffer-file-name b-f)
(when (buffer-base-buffer b-f)
(buffer-file-name (buffer-base-buffer b-f)))))
(t (user-error "Only file-backed buffers can be bookmarked by Org QL View: %s" b-f))))))
(-let* ((plist (org-ql-view--plist (current-buffer)))
((&plist :buffers-files) plist))
;; Replace buffers with their filenames, and signal error if any are not file-backed.
(setf plist (plist-put plist :buffers-files
(cl-etypecase buffers-files
(symbol buffers-files)
(string buffers-files)
(buffer (file-nameize buffers-files))
(list (mapcar #'file-nameize buffers-files)))))
(list (concat "Org QL View: " org-ql-view-title)
(cons 'org-ql-view-plist plist)
(cons 'handler #'org-ql-view-bookmark-handler)
(cons 'position (point))))))
;;;###autoload
(defun org-ql-view-bookmark-handler (bookmark)
"Show Org QL View BOOKMARK in current buffer."
;; FIXME: `pcase-let*' is easier to use to destructure this, but if I use
;; that, I want to use map 2.1 for the extra convenience, but I can't force
;; that to be installed into the makem.sh sandbox, so I just use `-let*' here.
(-let* ((record (bookmark-get-bookmark-record bookmark))
((&alist 'org-ql-view-plist) record)
((&plist :buffers-files :query :super-groups :narrow :sort :title)
org-ql-view-plist)
(super-groups (cl-etypecase super-groups
(symbol (symbol-value super-groups))
(list super-groups))))
(org-ql-search buffers-files query
:super-groups super-groups :narrow narrow :sort sort :title title)
;; HACK: `bookmark--jump-via' expects that, when the handler returns, the current buffer
;; (not merely the selected window's buffer) is the one to be displayed. However,
;; `org-ql-view--display' uses `with-current-buffer', which resets the current buffer to
;; the one that was active when the bookmark was jumped to. So we set the buffer before
;; returning. It might be better to refactor `org-ql-view--display' into a function that
;; returns a buffer which can be displayed by the calling function. But that would be
;; more complicated and might introduce bugs elsewhere, so we'll just do this for now.
(set-buffer (window-buffer (selected-window)))))
;;;; Links
;; This section implements support for Org links to Org QL searches. Since the
;; links are stored from and opened in `org-ql-view' buffers, this section resides
;; in this file. However, since the links are to `org-ql-search' searches rather
;; than `org-ql-view' saved views, the link type is "org-ql-search".
(org-link-set-parameters "org-ql-search"
:follow #'org-ql-view--link-follow
:store #'org-ql-view--link-store)
;; We require the URL libraries in the functions to hopefully avoid
;; loading them until they're needed.
(eval-when-compile
(require 'url-parse)
(require 'url-util))
(defun org-ql-view--link-follow (path &optional _ignored)
"Open Org QL query for current buffer at PATH.
PATH should be the part of an \"org-ql-search:\" URL after the
protocol. See, e.g. `org-ql-view--link-store'.
The optional, second argument is temporarily _IGNORED for
purposes of compatibility with changes in Org 9.4."
(require 'url-parse)
(require 'url-util)
(declare-function url-path-and-query "url-parse")
(when (version<= "9.3" (org-version))
;; Org 9.3+ makes a backward-incompatible change to link escaping.
;; I don't think it would be a good idea to try to guess whether
;; the string received by this function was made with or without
;; that change, so we'll just test the current version of Org.
;; Any links created with older Org versions and then opened with
;; newer ones will have to be recreated.
(setf path (url-unhex-string path)))
(pcase-let* ((`(,query . ,params) (url-path-and-query
(url-parse-make-urlobj "org-ql-search" nil nil nil nil
path)))
(query (url-unhex-string query))
(params (when params (url-parse-query-string params)))
;; `url-parse-query-string' returns "improper" alists, which makes this awkward.
(sort (when-let* ((stored-string (alist-get "sort" params nil nil #'string=))
(read-value (read stored-string)))
;; Ensure the value is either a symbol or list of symbols (which excludes lambdas).
(unless (or (symbolp read-value) (cl-every #'symbolp read-value))
(error "CAUTION: Link not opened because unsafe sort parameter detected: %s"
read-value))
read-value))
(org-super-agenda-allow-unsafe-groups nil) ; Disallow unsafe group selectors.
(groups (--when-let (alist-get "super-groups" params nil nil #'string=)
(read it)))
(title (--when-let (alist-get "title" params nil nil #'string=)
(read it)))
(buffers-files (--if-let (alist-get "buffers-files" params nil nil #'string=)
(org-ql-view--expand-buffers-files (read it))
(current-buffer))))
(unless (or (bufferp buffers-files)
(stringp buffers-files)
(cl-every #'stringp buffers-files))
(error "CAUTION: Link not opened because unsafe buffers-files parameter detected: %s" buffers-files))
(when (or (listp query)
(string-match (rx bol (0+ space) "(") query))
;; SAFETY: Query is in sexp form: ask for confirmation, because it could contain arbitrary code.
(org-ql--ask-unsafe-query query))
(org-ql-search buffers-files query
:sort sort
:super-groups groups
:title title)))
(defun org-ql-view--link-store ()
"Store a link to the current Org QL view.
When opened, the link searches the buffer it's opened from."
(require 'url-parse)
(require 'url-util)
(when org-ql-view-query
;; Only Org QL View buffers should have `org-ql-view-query' set.
(cl-labels ((prompt-for (buffers-files)
(pcase-exhaustive
(completing-read (format "Make link that searches: ")
'("file link is in" "files currently searched")
nil t nil nil "file link is in")
("file link is in" nil)
("files currently searched" buffers-files)))
(strings-or-file-buffers-p (thing)
(cl-etypecase thing
(list (cl-every #'strings-or-file-buffers-p thing))
(string thing)
(buffer (or (buffer-file-name thing)
;; TODO: Should indirect buffers be allowed? Maybe not, since their
;; narrowing isn't preserved. On the other hand, it's possible to
;; accidentally make a search view for an indirect buffer that's
;; since been widened, and forcing the user to manually change that
;; would be awkward, and trying to communicate the problem would be
;; difficult, so maybe it's okay to allow it.
(when (buffer-base-buffer thing)
(buffer-file-name (buffer-base-buffer thing))))))))
(unless (strings-or-file-buffers-p org-ql-view-buffers-files)
(user-error "%s" "Views that search non-file-backed buffers can't be linked to"))
(let* ((query-string (--if-let (org-ql--query-sexp-to-string org-ql-view-query)
it (org-ql-view--format-query org-ql-view-query)))
(buffers-files (prompt-for (org-ql-view--contract-buffers-files org-ql-view-buffers-files)))
(params (list (when buffers-files
(list "buffers-files" (prin1-to-string buffers-files)))
(when org-ql-view-super-groups
(list "super-groups" (prin1-to-string org-ql-view-super-groups)))
(when org-ql-view-sort
(list "sort" (prin1-to-string org-ql-view-sort)))
(when org-ql-view-title
(list "title" (prin1-to-string org-ql-view-title)))))
(filename (concat (url-hexify-string query-string)
"?" (url-build-query-string (delete nil params))))
(url (url-recreate-url (url-parse-make-urlobj "org-ql-search" nil nil nil nil
filename))))
(org-ql-search--org-link-store-props
:type "org-ql-search"
:link url
:description (concat "org-ql-search: " org-ql-view-title))))
t))
;;;; Transient
;; This section uses `transient' to allow the user to easily modify
;; and refresh views.
;; NOTE: I don't really know what I'm doing here. Even though the
;; Transient manual is written very well, not everything is covered in
;; it, so I'm having to try to imitate examples from `magit-transient'.
(require 'eieio-core)
(require 'transient)
(defclass org-ql-view--variable (transient-variable)
;; FIXME: We don't need :scope, but maybe a slot has to be defined.
((scope :initarg :scope)))
(cl-defmethod transient-infix-set ((obj org-ql-view--variable) value)
"Set Org QL View variable defined by OBJ to VALUE."
(let ((variable (oref obj variable)))
(oset obj value value)
(set (make-local-variable (oref obj variable)) value)
(unless (or value transient--prefix)
(message "Unset %s" variable))))
(transient-define-prefix org-ql-view-dispatch ()
"Show Org QL View dispatcher."
[["Edit"
("t" org-ql-view--transient-title)
("q" org-ql-view--transient-query)
("i" org-ql-view--transient-in)
("s" org-ql-view--transient-sort)
("g" org-ql-view--transient-super-groups)]]
[["View"
("r" "Refresh" org-ql-view-refresh)
("v" "Select" org-ql-view)]
[""
("C-s" "Save" org-ql-view-save)
("C-k" "Delete" org-ql-view-delete)]])
(defun org-ql-view--format-transient-key-value (key value)
"Return KEY and VALUE formatted for display in Transient."
;; `window-width' minus 15 is about right. I think there's no way
;; to determine it automatically, because we can't know which column
;; Transient is starting at.
(let ((max-width (- (window-width) 15)))
(format "%s: %s" (propertize key 'face 'transient-argument)
(s-truncate max-width (format "%s" value)))))
(defun org-ql-view--format-transient-lisp-argument (key value)
"Return KEY and VALUE (a Lisp object) formatted for display in Transient."
;; `window-width' minus 15 is about right. I think there's no way
;; to determine it automatically, because we can't know which column
;; Transient is starting at.
(s-truncate (- (window-width) 15)
(concat (propertize key 'face 'transient-argument) ": "
(->> value
org-ql-view--format-query
(org-ql-view--font-lock-string 'emacs-lisp-mode)))))
(transient-define-infix org-ql-view--transient-title ()
;; TODO: Add an asterisk or something when the view has been modified but not saved.
:description (lambda () (org-ql-view--format-transient-key-value "Title" org-ql-view-title))
:class 'org-ql-view--variable
:argument ""
:variable 'org-ql-view-title
:prompt "Title: "
:reader (lambda (prompt _initial-input history)
;; FIXME: Figure out how to integrate initial-input.
(read-string prompt (when org-ql-view-title
(format "%s" org-ql-view-title))
history)))
(transient-define-infix org-ql-view--transient-query ()
:description (lambda () (org-ql-view--format-transient-lisp-argument "Query" org-ql-view-query))
:class 'org-ql-view--variable
:argument ""
:variable 'org-ql-view-query
:prompt "Query: "
:reader (lambda (prompt _initial-input history)
;; FIXME: Figure out how to integrate initial-input.
(let ((query (read-string prompt (when org-ql-view-query
(format "%S" org-ql-view-query))
history)))
(if (or (string-prefix-p "(" query)
(string-prefix-p "\"" query))
;; Read sexp query.
(read query)
;; Parse non-sexp query into sexp query.
(org-ql--query-string-to-sexp query)))))
(transient-define-infix org-ql-view--transient-in ()
:description (lambda () (org-ql-view--format-transient-lisp-argument "In buffers/files" org-ql-view-buffers-files))
:class 'org-ql-view--variable
:argument ""
:variable 'org-ql-view-buffers-files
:prompt "Buffers/files: "
:reader (lambda (_prompt _initial-input _history)
;; This doesn't use the Transient `initial-input'
;; argument, but it gives the same result.
(org-ql-view--complete-buffers-files)))
(transient-define-infix org-ql-view--transient-super-groups ()
:description (lambda ()
(org-ql-view--format-transient-lisp-argument "Group by" org-ql-view-super-groups))
:class 'org-ql-view--variable
:argument ""
:variable 'org-ql-view-super-groups
:prompt "Group by: "
:reader (lambda (_prompt _initial-input _history)
;; FIXME: Figure out how to integrate initial-input and history.
(org-ql-view--complete-super-groups)))
(transient-define-infix org-ql-view--transient-sort ()
:description
(lambda ()
(org-ql-view--format-transient-lisp-argument "Sort by" (or org-ql-view-sort 'buffer-order)))
:class 'org-ql-view--variable
:argument ""
:variable 'org-ql-view-sort
:prompt "Sort: "
:reader (lambda (_prompt _initial-input _history)
;; FIXME: Figure out how to integrate initial-input and history.
(org-ql-view--complete-sort)))
;;;; Faces/properties
(defalias 'org-ql-view--resolve-element-properties
;; It would be preferable to define this as an inline function, but
;; that would mean that users would have to recompile org-ql when
;; upgrading to Org 9.7 or else get weird errors.
;; TODO(someday): Define `org-ql-view--resolve-element-properties' as inline.
(if (version<= "9.7" org-version)
(lambda (node)
"Resolve NODE's properties using `org-element-properties-resolve'."
;; Silence warnings about `org-element-properties-resolve'
;; being unresolved on earlier Org versions.
(with-no-warnings
(org-element-properties-resolve node 'force-undefer)))
#'identity))
(defun org-ql-view--format-element (element)
;; This essentially needs to do what `org-agenda-format-item' does,
;; which is a lot. We are a long way from that, but it's a start.
"Return ELEMENT as a string with text-properties set by its property list.
Its property list should be the second item in the list, as
returned by `org-element-parse-buffer'. If ELEMENT is nil,
return an empty string."
(if (not element)
""
(setf element (org-ql-view--resolve-element-properties element))
(let* ((properties (cadr element))
;; Remove the :parent property, which so bloats the size of
;; the properties list that it makes it essentially
;; impossible to debug, because Emacs takes approximately
;; forever to show it in the minibuffer or with
;; `describe-text-properties'. FIXME: Shouldn't be necessary
;; anymore since we're not parsing the whole buffer.
;; Also, remove ":" from key symbols. FIXME: It would be
;; better to avoid this somehow. At least, we should use a
;; function to convert plists to alists, if possible.
(properties (cl-loop for (key val) on properties by #'cddr
for symbol = (intern (cl-subseq (symbol-name key) 1))
unless (member symbol '(parent))
append (list symbol val)))
;; TODO: --add-faces is used to add the :relative-due-date property, but that fact is
;; hidden by doing it through --add-faces (which calls --add-scheduled-face and
;; --add-deadline-face), and doing it in this form that gets the title hides it even more.
;; Adding the relative due date property should probably be done explicitly and separately
;; (which would also make it easier to do it independently of faces, etc).
(title (--> (org-ql-view--add-faces element)
(org-element-property :raw-value it)))
(todo-keyword (-some--> (org-element-property :todo-keyword element)
(org-ql-view--add-todo-face
(substring-no-properties it))))
(tag-list (if org-use-tag-inheritance
;; MAYBE: Use our own variable instead of `org-use-tag-inheritance'.
(if-let ((marker (or (org-element-property :org-hd-marker element)
(org-element-property :org-marker element))))
(with-current-buffer (marker-buffer marker)
(org-with-wide-buffer
(goto-char marker)
(cl-loop for type in (org-ql--tags-at marker)
unless (or (eq 'org-ql-nil type)
(not type))
append type)))
;; No marker found
(display-warning 'org-ql (format "No marker found for item: %s" title))
(org-element-property :tags element))
(org-element-property :tags element)))
(tag-string (when tag-list
(--> tag-list
(s-join ":" it)
(s-wrap it ":")
(org-add-props it nil 'face 'org-tag))))
(category (or (org-element-property :CATEGORY element)
(when-let ((marker (or (org-element-property :org-hd-marker element)
(org-element-property :org-marker element))))
(org-with-point-at marker
(or (org-get-category)
(when buffer-file-name
(file-name-sans-extension
(file-name-nondirectory buffer-file-name))))))
""))
(priority-string (-some->> (org-element-property :priority element)
(char-to-string)
(format "[#%s]")
(org-ql-view--add-priority-face)))
(habit-property (org-with-point-at (or (org-element-property :org-hd-marker element)
(org-element-property :org-marker element))
(when (org-is-habit-p)
(org-habit-parse-todo))))
(due-string (pcase (org-element-property :relative-due-date element)
('nil "")
(string (format " %s " (org-add-props string nil 'face 'org-ql-view-due-date)))))
(string (s-join " " (-non-nil (list todo-keyword priority-string title due-string tag-string)))))
(remove-list-of-text-properties 0 (length string) '(line-prefix) string)
;; Add all the necessary properties and faces to the whole string
(--> string
;; FIXME: Use proper prefix
(concat " " it)
(org-add-props it properties
'org-agenda-type 'search
'org-category category
'todo-state todo-keyword
'tags tag-list
'org-habit-p habit-property)))))
(defun org-ql-view--add-faces (element)
"Return ELEMENT with deadline and scheduled faces added."
(->> element
(org-ql-view--add-scheduled-face)
(org-ql-view--add-deadline-face)))
(defun org-ql-view--add-priority-face (string)
"Return STRING with priority face added."
(when (string-match "\\(\\[#\\(.\\)\\]\\)" string)
(let ((face (org-get-priority-face (string-to-char (match-string 2 string)))))
(org-add-props string nil 'face face 'font-lock-fontified t))))
(defun org-ql-view--add-scheduled-face (element)
"Add faces to ELEMENT's title for its scheduled status."
;; NOTE: Also adding prefix
(if-let ((scheduled-date (org-element-property :scheduled element)))
(let* ((todo-keyword (org-element-property :todo-keyword element))
(today-day-number (org-today))
;; (current-day-number
;; NOTE: Not currently used, but if we ever implement a more "traditional" agenda that
;; shows perspective of multiple days at once, we'll need this, so I'll leave it for now.
;; ;; FIXME: This is supposed to be the, shall we say,
;; ;; pretend, or perspective, day number that this pass
;; ;; through the agenda is being made for. We need to
;; ;; either set this in the calling function, set it here,
;; ;; or accomplish this in a different way. See
;; ;; `org-agenda-get-scheduled' and where `date' is set in
;; ;; `org-agenda-list'.
;; today-day-number)
(scheduled-day-number (org-time-string-to-absolute
(org-element-timestamp-interpreter scheduled-date 'ignore)))
(difference-days (- today-day-number scheduled-day-number))
(relative-due-date (org-add-props (org-ql-view--format-relative-date difference-days) nil
'help-echo (org-element-property :raw-value scheduled-date)))
;; FIXME: Unused for now:
;; (show-all (or (eq org-agenda-repeating-timestamp-show-all t)
;; (member todo-keyword org-agenda-repeating-timestamp-show-all)))
;; FIXME: Unused for now: (sexp-p (string-prefix-p "%%" raw-value))
;; FIXME: Unused for now: (raw-value (org-element-property :raw-value scheduled-date))
;; FIXME: I don't remember what `repeat-day-number' was for, but we aren't using it.
;; But I'll leave it here for now.
;; (repeat-day-number (cond (sexp-p (org-time-string-to-absolute scheduled-date))
;; ((< today-day-number scheduled-day-number) scheduled-day-number)
;; (t (org-time-string-to-absolute
;; raw-value
;; (if show-all
;; current-day-number
;; today-day-number)
;; 'future
;; ;; FIXME: I don't like
;; ;; calling `current-buffer'
;; ;; here. If the element has
;; ;; a marker, we should use
;; ;; that.
;; (current-buffer)
;; (org-element-property :begin element)))))
(face (cond ((member todo-keyword org-done-keywords) 'org-agenda-done)
((= today-day-number scheduled-day-number) 'org-scheduled-today)
((> today-day-number scheduled-day-number) 'org-scheduled-previously)
(t 'org-scheduled)))
(title (--> (org-element-property :raw-value element)
(org-add-props it nil
'face face)))
(properties (--> (cadr element)
(plist-put it :title title)