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;;; which-key.el --- Display available keybindings in popup -*- lexical-binding: t; -*-
;; Copyright (C) 2017-2021 Free Software Foundation, Inc.
;; Author: Justin Burkett <justin@burkett.cc>
;; Maintainer: Justin Burkett <justin@burkett.cc>
;; URL: https://github.com/justbur/emacs-which-key
;; Version: 3.6.0
;; Keywords:
;; Package-Requires: ((emacs "24.4"))
;; 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 <http://www.gnu.org/licenses/>.
;;; Commentary:
;; which-key provides the minor mode which-key-mode for Emacs. The mode displays
;; the key bindings following your currently entered incomplete command (a
;; prefix) in a popup. For example, after enabling the minor mode if you enter
;; C-x and wait for the default of 1 second the minibuffer will expand with all
;; of the available key bindings that follow C-x (or as many as space allows
;; given your settings). This includes prefixes like C-x 8 which are shown in a
;; different face. Screenshots of what the popup will look like along with
;; information about additional features can be found at
;; https://github.com/justbur/emacs-which-key.
;;
;;; Code:
(require 'cl-lib)
(require 'button)
(require 'regexp-opt)
;; For compiler
(defvar evil-operator-shortcut-map)
(defvar evil-operator-state-map)
(defvar evil-motion-state-map)
(defvar golden-ratio-mode)
(declare-function evil-get-command-property "ext:evil-common.el")
;;; Options
(defgroup which-key nil
"Customization options for which-key-mode"
:group 'help
:prefix "which-key-")
(defcustom which-key-idle-delay 1.0
"Delay (in seconds) for which-key buffer to popup.
This variable should be set before activating `which-key-mode'.
A value of zero might lead to issues, so a non-zero value is
recommended
(see https://github.com/justbur/emacs-which-key/issues/134)."
:group 'which-key
:type 'float)
(defcustom which-key-idle-secondary-delay nil
"Once the which-key buffer shows once for a key sequence reduce
the idle time to this amount (in seconds). This makes it possible
to shorten the delay for subsequent popups in the same key
sequence. The default is for this value to be nil, which disables
this behavior."
:group 'which-key
:type '(choice float (const :tag "Disabled" nil)))
(defcustom which-key-echo-keystrokes (if (and echo-keystrokes
(> (+ echo-keystrokes 0.01)
which-key-idle-delay))
(/ (float which-key-idle-delay) 4)
echo-keystrokes)
"Value to use for `echo-keystrokes'.
This only applies if `which-key-popup-type' is minibuffer or
`which-key-show-prefix' is echo. It needs to be less than
`which-key-idle-delay' or else the keystroke echo will erase the
which-key popup."
:group 'which-key
:type 'float)
(defcustom which-key-max-description-length 27
"Truncate the description of keys to this length.
Either nil (no truncation), an integer (truncate after that many
characters), a float (use that fraction of the available width),
or a function, which takes one argument, the available width in
characters, and whose return value has one of the types mentioned
before. Truncation is done using `which-key-ellipsis'."
:group 'which-key
:type '(choice (const :tag "Disable truncation" nil)
(integer :tag "Width in characters")
(float :tag "Use fraction of available width")
function))
(defcustom which-key-min-column-description-width 0
"Every column should at least have this width."
:group 'which-key
:type 'integer)
(defcustom which-key-add-column-padding 0
"Additional padding (number of spaces) to add to the left of
each key column."
:group 'which-key
:type 'integer)
(defcustom which-key-unicode-correction 3
"Correction for wide unicode characters.
Since we measure width in terms of the number of characters,
Unicode characters that are wider than ASCII characters throw off
the calculation for available width in the which-key buffer. This
variable allows you to adjust for the wide unicode characters by
artificially reducing the available width in the buffer.
The default of 3 means allow for the total extra width
contributed by any wide unicode characters to be up to one
additional ASCII character in the which-key buffer. Increase this
number if you are seeing characters get cutoff on the right side
of the which-key popup."
:group 'which-key
:type 'integer)
(defcustom which-key-dont-use-unicode nil
"If non-nil, don't use any unicode characters in default setup."
:group 'which-key
:type 'boolean)
(defcustom which-key-separator
(if which-key-dont-use-unicode " : " " → ")
"Separator to use between key and description. Default is \" →
\", unless `which-key-dont-use-unicode' is non nil, in which case
the default is \" : \"."
:group 'which-key
:type 'string)
(defcustom which-key-ellipsis
(if which-key-dont-use-unicode ".." "…")
"Ellipsis to use when truncating.
Default is \"…\", unless `which-key-dont-use-unicode' is non nil,
in which case the default is \"..\". This can also be the empty
string to truncate without using any ellipsis."
:group 'which-key
:type 'string)
(defcustom which-key-prefix-prefix "+"
"String to insert in front of prefix commands (i.e., commands
that represent a sub-map). Default is \"+\"."
:group 'which-key
:type 'string)
(defcustom which-key-compute-remaps nil
"If non-nil, show remapped command if a command has been
remapped given the currently active keymaps."
:group 'which-key
:type 'boolean)
(defcustom which-key-replacement-alist
(delq nil
`(((nil . "which-key-show-next-page-no-cycle") . (nil . "wk next pg"))
,@(unless which-key-dont-use-unicode
'((("<left>") . ("←"))
(("<right>") . ("→"))))
(("<\\([[:alnum:]-]+\\)>") . ("\\1"))))
"Association list to determine how to manipulate descriptions
of key bindings in the which-key popup. Each element of the list
is a nested cons cell with the format
\(MATCH CONS . REPLACEMENT\).
The MATCH CONS determines when a replacement should occur and
REPLACEMENT determines how the replacement should occur. Each may
have the format \(KEY REGEXP . BINDING REGEXP\). For the
replacement to apply the key binding must match both the KEY
REGEXP and the BINDING REGEXP. A value of nil in either position
can be used to match every possibility. The replacement is
performed by using `replace-regexp-in-string' on the KEY REGEXP
from the MATCH CONS and REPLACEMENT when it is a cons cell, and
then similarly for the BINDING REGEXP. A nil value in the BINDING
REGEXP position cancels the replacement. For example, the entry
\(\(nil . \"Prefix Command\"\) . \(nil . \"prefix\"\)\)
matches any binding with the descriptions \"Prefix Command\" and
replaces the description with \"prefix\", ignoring the
corresponding key.
REPLACEMENT may also be a function taking a cons cell
\(KEY . BINDING\) and producing a new corresponding cons cell.
If REPLACEMENT is anything other than a cons cell \(and non nil\)
the key binding is ignored by which-key.
Finally, you can multiple replacements to occur for a given key
binding by setting `which-key-allow-multiple-replacements' to a
non-nil value."
:group 'which-key
:type '(alist :key-type (cons (choice regexp (const nil))
(choice regexp (const nil)))
:value-type (cons (choice string (const nil))
(choice string (const nil)))))
(defcustom which-key-allow-multiple-replacements nil
"Allow a key binding to match and be modified by multiple
elements in `which-key-replacement-alist' if non-nil. When nil,
only the first match is used to perform replacements from
`which-key-replacement-alist'."
:group 'which-key
:type 'boolean)
(defcustom which-key-show-docstrings nil
"If non-nil, show each command's docstring next to the command
in the which-key buffer. This will only display the docstring up
to the first line break. If you set this variable to the symbol
docstring-only, then the command's name with be omitted. You
probably also want to adjust `which-key-max-description-length'
at the same time if you use this feature."
:group 'which-key
:type '(radio
(const :tag "Do not show docstrings" nil)
(const :tag "Add docstring to command names" t)
(const :tag "Replace command name with docstring" docstring-only)))
(defcustom which-key-highlighted-command-list '()
"A list of strings and/or cons cells used to highlight certain
commands. If the element is a string, assume it is a regexp
pattern for matching command names and use
`which-key-highlighted-command-face' for any matching names. If
the element is a cons cell, it should take the form (regexp .
face to apply)."
:group 'which-key
:type '(repeat (choice string (cons regexp face))))
(defcustom which-key-special-keys '()
"These keys will automatically be truncated to one character
and have `which-key-special-key-face' applied to them. This is
disabled by default. Try this to see the effect.
\(setq which-key-special-keys \\='(\"SPC\" \"TAB\" \"RET\" \"ESC\" \"DEL\")\)"
:group 'which-key
:type '(repeat string))
(defcustom which-key-buffer-name " *which-key*"
"Name of which-key buffer."
:group 'which-key
:type 'string)
(defcustom which-key-show-prefix 'echo
"Whether to and where to display the current prefix sequence
Possible choices are echo for echo area (the default), left, top
and nil. Nil turns the feature off."
:group 'which-key
:type '(radio (const :tag "Left of the keys" left)
(const :tag "In the first line" top)
(const :tag "In the last line" bottom)
(const :tag "In the echo area" echo)
(const :tag "In the mode-line" mode-line)
(const :tag "Hide" nil)))
(defcustom which-key-popup-type 'side-window
"Supported types are minibuffer, side-window, frame, and custom"
:group 'which-key
:type '(radio (const :tag "Show in minibuffer" minibuffer)
(const :tag "Show in side window" side-window)
(const :tag "Show in popup frame" frame)
(const :tag "Use your custom display functions" custom)))
(defcustom which-key-min-display-lines 1
"Minimum number of horizontal lines to display in the which-key buffer"
:group 'which-key
:type 'integer)
(defcustom which-key-max-display-columns nil
"Maximum number of columns to display in the which-key buffer
nil means don't impose a maximum."
:group 'which-key
:type '(choice integer (const :tag "Unbounded" nil)))
(defcustom which-key-side-window-location 'bottom
"Location of which-key popup when `which-key-popup-type' is side-window.
Should be one of top, bottom, left or right. You can also specify
a list of two locations, like (right bottom). In this case, the
first location is tried. If there is not enough room, the second
location is tried."
:group 'which-key
:type '(radio (const right)
(const bottom)
(const left)
(const top)
(const (right bottom))
(const (bottom right))))
(defcustom which-key-side-window-slot 0
"The `slot' to use for `display-buffer-in-side-window' when
`which-key-popup-type' is `side-window'. Quoting from the
docstring of `display-buffer-in-side-window',
`slot' if non-nil, specifies the window slot where to display
BUFFER. A value of zero or nil means use the middle slot on the
specified side. A negative value means use a slot
preceding (that is, above or on the left of) the middle slot. A
positive value means use a slot following (that is, below or on
the right of) the middle slot. The default is zero."
:group 'which-key
:type 'integer)
(defcustom which-key-side-window-max-width 0.333
"Maximum width of which-key popup when type is side-window
This variable can also be a number between 0 and 1. In that case,
it denotes a percentage out of the frame's width."
:group 'which-key
:type 'float)
(defcustom which-key-side-window-max-height 0.25
"Maximum height of which-key popup when type is side-window
This variable can also be a number between 0 and 1. In that case, it denotes
a percentage out of the frame's height."
:group 'which-key
:type 'float)
(defcustom which-key-frame-max-width 60
"Maximum width of which-key popup when type is frame."
:group 'which-key
:type 'integer)
(defcustom which-key-frame-max-height 20
"Maximum height of which-key popup when type is frame."
:group 'which-key
:type 'integer)
(defcustom which-key-allow-imprecise-window-fit (not (display-graphic-p))
"If non-nil allow which-key to use a less intensive method of
fitting the popup window to the buffer. If you are noticing lag
when the which-key popup displays turning this on may help.
See https://github.com/justbur/emacs-which-key/issues/130
and https://github.com/justbur/emacs-which-key/issues/225."
:group 'which-key
:type 'boolean)
(defcustom which-key-show-remaining-keys nil
"Show remaining keys in last slot, when keys are hidden."
:group 'which-key
:type '(radio (const :tag "Yes" t)
(const :tag "No" nil)))
(defcustom which-key-sort-order 'which-key-key-order
"If nil, do not resort the output from
`describe-buffer-bindings' which groups by mode. Ordering options
are
1. `which-key-key-order': by key (default)
2. `which-key-key-order-alpha': by key using alphabetical order
3. `which-key-description-order': by description
4. `which-key-prefix-then-key-order': prefix (no prefix first) then key
5. `which-key-local-then-key-order': local binding then key
See the README and the docstrings for those functions for more
information."
:group 'which-key
:type '(choice (function-item which-key-key-order)
(function-item which-key-key-order-alpha)
(function-item which-key-description-order)
(function-item which-key-prefix-then-key-order)
(function-item which-key-local-then-key-order)))
(defcustom which-key-sort-uppercase-first t
"If non-nil, uppercase comes before lowercase in sorting
function chosen in `which-key-sort-order'. Otherwise, the order
is reversed."
:group 'which-key
:type 'boolean)
(defcustom which-key-paging-prefixes '()
"Enable paging for these prefixes."
:group 'which-key
:type '(repeat string))
(defcustom which-key-paging-key "<f5>"
"Key to use for changing pages. Bound after each of the
prefixes in `which-key-paging-prefixes'"
:group 'which-key
:type 'string)
;; (defcustom which-key-undo-key nil
;; "Key (string) to use for undoing keypresses. Bound recursively
;; in each of the maps in `which-key-undo-keymaps'."
;; :group 'which-key
;; :type 'string)
;; (defcustom which-key-undo-keymaps '()
;; "Keymaps in which to bind `which-key-undo-key'"
;; :group 'which-key
;; :type '(repeat symbol))
(defcustom which-key-use-C-h-commands t
"Use C-h (or whatever `help-char' is set to) for paging if
non-nil. Normally C-h after a prefix calls
`describe-prefix-bindings'. This changes that command to a
which-key paging command when which-key-mode is active."
:group 'which-key
:type 'boolean)
(defcustom which-key-show-early-on-C-h nil
"Show the which-key buffer before if C-h (or whatever
`help-char' is set to) is pressed in the middle of a prefix
before the which-key buffer would normally be triggered through
the idle delay. If combined with the following settings,
which-key will effectively only show when triggered \"manually\"
using C-h.
\(setq `which-key-idle-delay' 10000)
\(setq `which-key-idle-secondary-delay' 0.05)
Note that `which-key-idle-delay' should be set before turning on
`which-key-mode'. "
:group 'which-key
:type 'boolean)
(defcustom which-key-is-verbose nil
"Whether to warn about potential mistakes in configuration."
:group 'which-key
:type 'boolean)
(defcustom which-key-preserve-window-configuration nil
"If non-nil, save window configuration before which-key buffer is shown
and restore it after which-key buffer is hidden. It prevents which-key from
changing window position of visible buffers.
Only takken into account when popup type is side-window."
:group
'which-key
:type 'boolean)
(defvar which-key-C-h-map-prompt
(concat " \\<which-key-C-h-map>"
" \\[which-key-show-next-page-cycle]"
which-key-separator "next-page,"
" \\[which-key-show-previous-page-cycle]"
which-key-separator "previous-page,"
" \\[which-key-undo-key]"
which-key-separator "undo-key,"
" \\[which-key-toggle-docstrings]"
which-key-separator "toggle-docstrings,"
" \\[which-key-show-standard-help]"
which-key-separator "help,"
" \\[which-key-abort]"
which-key-separator "abort"
" 1..9"
which-key-separator "digit-arg")
"Prompt to display when invoking `which-key-C-h-map'. This string
is fed into `substitute-command-keys'")
(defvar which-key-C-h-map
(let ((map (make-sparse-keymap)))
(dolist (bind `(("\C-a" . which-key-abort)
("a" . which-key-abort)
("\C-d" . which-key-toggle-docstrings)
("d" . which-key-toggle-docstrings)
(,(vector help-char) . which-key-show-standard-help)
("h" . which-key-show-standard-help)
("\C-n" . which-key-show-next-page-cycle)
("n" . which-key-show-next-page-cycle)
("\C-p" . which-key-show-previous-page-cycle)
("p" . which-key-show-previous-page-cycle)
("\C-u" . which-key-undo-key)
("u" . which-key-undo-key)
("1" . which-key-digit-argument)
("2" . which-key-digit-argument)
("3" . which-key-digit-argument)
("4" . which-key-digit-argument)
("5" . which-key-digit-argument)
("6" . which-key-digit-argument)
("7" . which-key-digit-argument)
("8" . which-key-digit-argument)
("9" . which-key-digit-argument)))
(define-key map (car bind) (cdr bind)))
map)
"Keymap for C-h commands.")
(defvar which-key--paging-functions '(which-key-C-h-dispatch
which-key-manual-update
which-key-turn-page
which-key-show-next-page-cycle
which-key-show-next-page-no-cycle
which-key-show-previous-page-cycle
which-key-show-previous-page-no-cycle
which-key-undo-key
which-key-undo))
(defvar which-key-persistent-popup nil
"Whether or not to disable `which-key--hide-popup'.")
(defcustom which-key-hide-alt-key-translations t
"Hide key translations using Alt key if non nil.
These translations are not relevant most of the times since a lot
of terminals issue META modifier for the Alt key.
See http://www.gnu.org/software/emacs/manual/html_node/emacs/Modifier-Keys.html"
:group 'which-key
:type 'boolean)
(defcustom which-key-delay-functions nil
"A list of functions that may decide whether to delay the
which-key popup based on the current incomplete key
sequence. Each function in the list is run with two arguments,
the current key sequence as produced by `key-description' and the
length of the key sequence. If the popup should be delayed based
on that key sequence, the function should return the delay time
in seconds. Returning nil means no delay. The first function in
this list to return a value is the value that is used.
The delay time is effectively added to the normal
`which-key-idle-delay'."
:group 'which-key
:type '(repeat function))
(defcustom which-key-allow-regexps nil
"A list of regexp strings to use to filter key sequences.
When non-nil, for a key sequence to trigger the which-key popup
it must match one of the regexps in this list. The format of the
key sequences is what is produced by `key-description'."
:group 'which-key
:type '(repeat regexp))
(defcustom which-key-inhibit-regexps nil
"Similar to `which-key-allow-regexps', a list of regexp strings
to use to filter key sequences. When non-nil, for a key sequence
to trigger the which-key popup it cannot match one of the regexps
in this list. The format of the key sequences is what is produced
by `key-description'."
:group 'which-key
:type '(repeat regexp))
(defcustom which-key-show-transient-maps nil
"Show keymaps created by `set-transient-map' when applicable.
More specifically, detect when `overriding-terminal-local-map' is
set (this is the keymap used by `set-transient-map') and display
it."
:group 'which-key
:type 'boolean)
(make-obsolete-variable
'which-key-enable-extended-define-key
"which-key-enable-extended-define-key is obsolete and has no effect."
"2021-06-21")
;; Hooks
(defcustom which-key-init-buffer-hook '()
"Hook run when which-key buffer is initialized."
:group 'which-key
:type 'hook)
;;;; Faces
(defgroup which-key-faces nil
"Faces for which-key-mode"
:group 'which-key
:prefix "which-key-")
(defface which-key-key-face
'((t . (:inherit font-lock-constant-face)))
"Face for which-key keys"
:group 'which-key-faces)
(defface which-key-separator-face
'((t . (:inherit font-lock-comment-face)))
"Face for the separator (default separator is an arrow)"
:group 'which-key-faces)
(defface which-key-note-face
'((t . (:inherit which-key-separator-face)))
"Face for notes or hints occasionally provided"
:group 'which-key-faces)
(defface which-key-command-description-face
'((t . (:inherit font-lock-function-name-face)))
"Face for the key description when it is a command"
:group 'which-key-faces)
(defface which-key-local-map-description-face
'((t . (:inherit which-key-command-description-face)))
"Face for the key description when it is found in `current-local-map'"
:group 'which-key-faces)
(defface which-key-highlighted-command-face
'((t . (:inherit which-key-command-description-face :underline t)))
"Default face for the command description when it is a command
and it matches a string in `which-key-highlighted-command-list'."
:group 'which-key-faces)
(defface which-key-group-description-face
'((t . (:inherit font-lock-keyword-face)))
"Face for the key description when it is a group or prefix"
:group 'which-key-faces)
(defface which-key-special-key-face
'((t . (:inherit which-key-key-face :inverse-video t :weight bold)))
"Face for special keys (SPC, TAB, RET)"
:group 'which-key-faces)
(defface which-key-docstring-face
'((t . (:inherit which-key-note-face)))
"Face for docstrings"
:group 'which-key-faces)
;;;; Custom popup
(defcustom which-key-custom-popup-max-dimensions-function nil
"Variable to hold a custom max-dimensions function.
Will be passed the width of the active window and is expected to
return the maximum height in lines and width in characters of the
which-key popup in the form a cons cell (height . width)."
:group 'which-key
:type '(choice function (const nil)))
(defcustom which-key-custom-hide-popup-function nil
"Variable to hold a custom hide-popup function.
It takes no arguments and the return value is ignored."
:group 'which-key
:type '(choice function (const nil)))
(defcustom which-key-custom-show-popup-function nil
"Variable to hold a custom show-popup function.
Will be passed the required dimensions in the form (height .
width) in lines and characters respectively. The return value is
ignored."
:group 'which-key
:type '(choice function (const nil)))
(defcustom which-key-lighter " WK"
"Minor mode lighter to use in the mode-line."
:group 'which-key
:type 'string)
(defvar which-key-inhibit nil
"Prevent which-key from popping up momentarily by setting this
to a non-nil value for the execution of a command. Like this
\(let \(\(which-key-inhibit t\)\)
...\)")
(defvar which-key-keymap-history nil
"History of keymap selections in functions like
`which-key-show-keymap'.")
;;; Internal Vars
(defvar which-key--buffer nil
"Internal: Holds reference to which-key buffer.")
(defvar which-key--timer nil
"Internal: Holds reference to open window timer.")
(defvar which-key--secondary-timer-active nil
"Internal: Non-nil if the secondary timer is active.")
(defvar which-key--paging-timer nil
"Internal: Holds reference to timer for paging.")
(defvar which-key--frame nil
"Internal: Holds reference to which-key frame.
Used when `which-key-popup-type' is frame.")
(defvar which-key--echo-keystrokes-backup nil
"Internal: Backup the initial value of `echo-keystrokes'.")
(defvar which-key--prefix-help-cmd-backup nil
"Internal: Backup the value of `prefix-help-command'.")
(defvar which-key--last-try-2-loc nil
"Internal: Last location of side-window when two locations
used.")
(defvar which-key--automatic-display nil
"Internal: Non-nil if popup was triggered with automatic
update.")
(defvar which-key--debug-buffer-name nil
"If non-nil, use this buffer for debug messages.")
(defvar which-key--multiple-locations nil)
(defvar which-key--inhibit-next-operator-popup nil)
(defvar which-key--prior-show-keymap-args nil)
(defvar which-key--previous-frame-size nil)
(defvar which-key--prefix-title-alist nil)
(defvar which-key--evil-keys-regexp (eval-when-compile
(regexp-opt '("-state"))))
(defvar which-key--ignore-non-evil-keys-regexp
(eval-when-compile
(regexp-opt '("mouse-" "wheel-" "remap" "drag-" "scroll-bar"
"select-window" "switch-frame" "which-key"))))
(defvar which-key--ignore-keys-regexp
(eval-when-compile
(regexp-opt '("mouse-" "wheel-" "remap" "drag-" "scroll-bar"
"select-window" "switch-frame" "-state"
"which-key"))))
(defvar which-key--pages-obj nil)
(cl-defstruct which-key--pages
pages
height
widths
keys/page
page-nums
num-pages
total-keys
prefix
prefix-title)
(defvar which-key--saved-window-configuration nil)
(defun which-key--rotate (list n)
(let* ((len (length list))
(n (if (< n 0) (+ len n) n))
(n (mod n len)))
(append (last list (- len n)) (butlast list (- len n)))))
(defun which-key--pages-set-current-page (pages-obj n)
(setf (which-key--pages-pages pages-obj)
(which-key--rotate (which-key--pages-pages pages-obj) n))
(setf (which-key--pages-widths pages-obj)
(which-key--rotate (which-key--pages-widths pages-obj) n))
(setf (which-key--pages-keys/page pages-obj)
(which-key--rotate (which-key--pages-keys/page pages-obj) n))
(setf (which-key--pages-page-nums pages-obj)
(which-key--rotate (which-key--pages-page-nums pages-obj) n))
pages-obj)
(defsubst which-key--on-first-page ()
(= (which-key--pages-page-nums which-key--pages-obj) 1))
(defsubst which-key--on-last-page ()
(= (which-key--pages-page-nums which-key--pages-obj)
(which-key--pages-num-pages which-key--pages-obj)))
(defsubst which-key--current-prefix ()
(and which-key--pages-obj
(which-key--pages-prefix which-key--pages-obj)))
(defmacro which-key--debug-message (&rest msg)
`(when which-key--debug-buffer-name
(let ((buf (get-buffer-create which-key--debug-buffer-name))
(fmt-msg (format ,@msg)))
(with-current-buffer buf
(goto-char (point-max))
(insert "\n" fmt-msg "\n")))))
(defsubst which-key--safe-lookup-key (keymap key)
"Version of `lookup-key' that allows KEYMAP to be nil.
Also convert numeric results of `lookup-key' to nil. KEY is not
checked."
(when (keymapp keymap)
(let ((result (lookup-key keymap key)))
(when (and result (not (numberp result)))
result))))
(defsubst which-key--safe-lookup-key-description (keymap key)
"Version of `lookup-key' that allows KEYMAP to be nil.
Also convert numeric results of `lookup-key' to nil. KEY
should be formatted as an input for `kbd'."
(let ((key (ignore-errors (kbd key))))
(when (and key (keymapp keymap))
(let ((result (lookup-key keymap key)))
(when (and result (not (numberp result)))
result)))))
;;; Third-party library support
;;;; Evil
(defvar evil-state nil)
(defcustom which-key-allow-evil-operators (boundp 'evil-this-operator)
"Allow popup to show for evil operators.
The popup is normally inhibited in the middle of commands, but
setting this to non-nil will override this behavior for evil
operators."
:group 'which-key
:type 'boolean)
(defcustom which-key-show-operator-state-maps nil
"Experimental: Try to show the right keys following an evil
command that reads a motion, such as \"y\", \"d\" and \"c\" from
normal state. This is experimental, because there might be some
valid keys missing and it might be showing some invalid keys."
:group 'which-key
:type 'boolean)
;;;; God-mode
(defvar which-key--god-mode-support-enabled nil
"Support god-mode if non-nil. This is experimental,
so you need to explicitly opt-in for now. Please report any
problems at github.")
(defvar which-key--god-mode-key-string nil
"Holds key string to use for god-mode support.")
(defun which-key--god-mode-lookup-command-advice (orig-fun arg1 &rest args)
(setq which-key--god-mode-key-string arg1)
(unwind-protect
(apply orig-fun arg1 args)
(when (bound-and-true-p which-key-mode)
(which-key--hide-popup))))
(defun which-key-enable-god-mode-support (&optional disable)
"Enable support for god-mode if non-nil.
This is experimental, so you need to explicitly opt-in for
now. Please report any problems at github. If DISABLE is non-nil
disable support."
(interactive "P")
(setq which-key--god-mode-support-enabled (null disable))
(if disable
(advice-remove 'god-mode-lookup-command
#'which-key--god-mode-lookup-command-advice)
(advice-add 'god-mode-lookup-command :around
#'which-key--god-mode-lookup-command-advice)))
;;; Mode
;;;###autoload
(define-minor-mode which-key-mode
"Toggle which-key-mode."
:global t
:group 'which-key
:lighter which-key-lighter
:keymap (let ((map (make-sparse-keymap)))
(mapc
(lambda (prefix)
(define-key map
(kbd (concat prefix " " which-key-paging-key))
#'which-key-C-h-dispatch))
which-key-paging-prefixes)
map)
(if which-key-mode
(progn
(setq which-key--echo-keystrokes-backup echo-keystrokes)
(when (or (eq which-key-show-prefix 'echo)
(eq which-key-popup-type 'minibuffer))
(which-key--setup-echo-keystrokes))
(unless (member prefix-help-command which-key--paging-functions)
(setq which-key--prefix-help-cmd-backup prefix-help-command))
(when (or which-key-use-C-h-commands
which-key-show-early-on-C-h)
(setq prefix-help-command #'which-key-C-h-dispatch))
(when which-key-show-remaining-keys
(add-hook 'pre-command-hook #'which-key--lighter-restore))
(add-hook 'pre-command-hook #'which-key--hide-popup)
(add-hook 'window-size-change-functions
#'which-key--hide-popup-on-frame-size-change)
(which-key--start-timer))
(setq echo-keystrokes which-key--echo-keystrokes-backup)
(when which-key--prefix-help-cmd-backup
(setq prefix-help-command which-key--prefix-help-cmd-backup))
(when which-key-show-remaining-keys
(remove-hook 'pre-command-hook #'which-key--lighter-restore))
(remove-hook 'pre-command-hook #'which-key--hide-popup)
(remove-hook 'window-size-change-functions
#'which-key--hide-popup-on-frame-size-change)
(which-key--stop-timer)))
(defun which-key--init-buffer ()
"Initialize which-key buffer"
(unless (buffer-live-p which-key--buffer)
(setq which-key--buffer (get-buffer-create which-key-buffer-name))
(with-current-buffer which-key--buffer
;; suppress confusing minibuffer message
(let (message-log-max)
(toggle-truncate-lines 1)
(message ""))
(setq-local cursor-type nil)
(setq-local cursor-in-non-selected-windows nil)
(setq-local mode-line-format nil)
(setq-local header-line-format nil)
(setq-local word-wrap nil)
(setq-local show-trailing-whitespace nil)
(run-hooks 'which-key-init-buffer-hook))))
(defun which-key--setup-echo-keystrokes ()
"Reduce `echo-keystrokes' if necessary (it will interfere if
it's set too high)."
(when (and echo-keystrokes
(> (abs (- echo-keystrokes which-key-echo-keystrokes)) 0.000001))
(if (> which-key-idle-delay which-key-echo-keystrokes)
(setq echo-keystrokes which-key-echo-keystrokes)
(setq which-key-echo-keystrokes (/ (float which-key-idle-delay) 4)
echo-keystrokes which-key-echo-keystrokes))))
(defun which-key-remove-default-unicode-chars ()
"Use of `which-key-dont-use-unicode' is preferred to this
function, but it's included here in case someone cannot set that
variable early enough in their configuration, if they are using a
starter kit for example."
(when (string-equal which-key-separator " → ")
(setq which-key-separator " : ")))
;;; Default configuration functions for use by users.
;;;###autoload
(defun which-key-setup-side-window-right ()
"Apply suggested settings for side-window that opens on right."
(interactive)
(setq which-key-popup-type 'side-window
which-key-side-window-location 'right
which-key-show-prefix 'top))
;;;###autoload
(defun which-key-setup-side-window-right-bottom ()
"Apply suggested settings for side-window that opens on right
if there is space and the bottom otherwise."
(interactive)
(setq which-key-popup-type 'side-window
which-key-side-window-location '(right bottom)
which-key-show-prefix 'top))
;;;###autoload
(defun which-key-setup-side-window-bottom ()
"Apply suggested settings for side-window that opens on bottom."
(interactive)
(which-key--setup-echo-keystrokes)
(setq which-key-popup-type 'side-window
which-key-side-window-location 'bottom
which-key-show-prefix 'echo))
;;;###autoload
(defun which-key-setup-minibuffer ()
"Apply suggested settings for minibuffer.
Do not use this setup if you use the paging commands. Instead use
`which-key-setup-side-window-bottom', which is nearly identical
but more functional."
(interactive)
(which-key--setup-echo-keystrokes)
(setq which-key-popup-type 'minibuffer
which-key-show-prefix 'left))
;;; Helper functions to modify replacement lists.
;;;###autoload
(defun which-key-add-keymap-based-replacements (keymap key replacement &rest more)
"Replace the description of KEY using REPLACEMENT in KEYMAP.
KEY should take a format suitable for use in `kbd'. REPLACEMENT
should be a cons cell of the form \(STRING . COMMAND\) for each
REPLACEMENT, where STRING is the replacement string and COMMAND
is a symbol corresponding to the intended command to be
replaced. COMMAND can be nil if the binding corresponds to a key
prefix. An example is
\(which-key-add-keymap-based-replacements global-map
\"C-x w\" \\='\(\"Save as\" . write-file\)\).
For backwards compatibility, REPLACEMENT can also be a string,
but the above format is preferred, and the option to use a string
for REPLACEMENT will eventually be removed."
(while key
(let ((def
(cond
((consp replacement) replacement)
((stringp replacement)
(cons replacement
(or (which-key--safe-lookup-key-description keymap key)
(make-sparse-keymap))))
(t
(user-error "replacement is neither a cons cell or a string")))))
(define-key keymap (kbd key) def))
(setq key (pop more)
replacement (pop more))))
(put 'which-key-add-keymap-based-replacements 'lisp-indent-function 'defun)
;;;###autoload
(defun which-key-add-key-based-replacements
(key-sequence replacement &rest more)
"Replace the description of KEY-SEQUENCE with REPLACEMENT.
KEY-SEQUENCE is a string suitable for use in `kbd'. REPLACEMENT
may either be a string, as in
\(which-key-add-key-based-replacements \"C-x 1\" \"maximize\"\)
a cons of two strings as in
\(which-key-add-key-based-replacements \"C-x 8\"
\\='(\"unicode\" . \"Unicode keys\")\)
or a function that takes a \(KEY . BINDING\) cons and returns a
replacement.
In the second case, the second string is used to provide a longer
name for the keys under a prefix.
MORE allows you to specifcy additional KEY REPLACEMENT pairs. All
replacements are added to `which-key-replacement-alist'."
;; TODO: Make interactive
(while key-sequence
;; normalize key sequences before adding
(let ((key-seq (key-description (kbd key-sequence)))
(replace (or (and (functionp replacement) replacement)
(car-safe replacement)
replacement)))
(push (cons (cons (concat "\\`" (regexp-quote key-seq) "\\'") nil)
(if (functionp replace) replace (cons nil replace)))
which-key-replacement-alist)
(when (and (not (functionp replacement)) (consp replacement))
(push (cons key-seq (cdr-safe replacement))
which-key--prefix-title-alist)))
(setq key-sequence (pop more) replacement (pop more))))
(put 'which-key-add-key-based-replacements 'lisp-indent-function 'defun)
;;;###autoload
(defun which-key-add-major-mode-key-based-replacements
(mode key-sequence replacement &rest more)
"Functions like `which-key-add-key-based-replacements'.
The difference is that MODE specifies the `major-mode' that must
be active for KEY-SEQUENCE and REPLACEMENT (MORE contains
addition KEY-SEQUENCE REPLACEMENT pairs) to apply."
;; TODO: Make interactive
(when (not (symbolp mode))
(error "MODE should be a symbol corresponding to a value of major-mode"))
(let ((mode-alist
(or (cdr-safe (assq mode which-key-replacement-alist)) (list)))
(title-mode-alist
(or (cdr-safe (assq mode which-key--prefix-title-alist)) (list))))
(while key-sequence
;; normalize key sequences before adding
(let ((key-seq (key-description (kbd key-sequence)))
(replace (or (and (functionp replacement) replacement)
(car-safe replacement)
replacement)))
(push (cons (cons (concat "\\`" (regexp-quote key-seq) "\\'") nil)
(if (functionp replace) replace (cons nil replace)))
mode-alist)
(when (and (not (functionp replacement)) (consp replacement))
(push (cons key-seq (cdr-safe replacement))
title-mode-alist)))
(setq key-sequence (pop more) replacement (pop more)))
(if (assq mode which-key-replacement-alist)
(setcdr (assq mode which-key-replacement-alist) mode-alist)
(push (cons mode mode-alist) which-key-replacement-alist))
(if (assq mode which-key--prefix-title-alist)
(setcdr (assq mode which-key--prefix-title-alist) title-mode-alist)
(push (cons mode title-mode-alist) which-key--prefix-title-alist))))
(put 'which-key-add-major-mode-key-based-replacements
'lisp-indent-function 'defun)
(defun which-key-define-key-recursively (map key def &optional at-root)
"Recursively bind KEY in MAP to DEF on every level of MAP except the first.
If AT-ROOT is non-nil the binding is also placed at the root of MAP."
(when at-root (define-key map key def))
(map-keymap
(lambda (_ev df)
(when (keymapp df)
(which-key-define-key-recursively df key def t)))
map))
;;; Functions for computing window sizes
(defun which-key--text-width-to-total (text-width)
"Convert window text-width to window total-width.
TEXT-WIDTH is the desired text width of the window. The function
calculates what total width is required for a window in the
selected to have a text-width of TEXT-WIDTH columns. The
calculation considers possible fringes and scroll bars. This
function assumes that the desired window has the same character
width as the frame."
(let ((char-width (frame-char-width)))
(+ text-width
(/ (frame-fringe-width) char-width)
(/ (frame-scroll-bar-width) char-width)
(if (which-key--char-enlarged-p) 1 0)
;; add padding to account for possible wide (unicode) characters
3)))
(defun which-key--total-width-to-text (total-width)
"Convert window total-width to window text-width.
TOTAL-WIDTH is the desired total width of the window. The function calculates
what text width fits such a window. The calculation considers possible fringes
and scroll bars. This function assumes that the desired window has the same
character width as the frame."
(let ((char-width (frame-char-width)))
(- total-width
(/ (frame-fringe-width) char-width)
(/ (frame-scroll-bar-width) char-width)
(if (which-key--char-enlarged-p) 1 0)
;; add padding to account for possible wide (unicode) characters
3)))
(defun which-key--char-enlarged-p (&optional _frame)
(> (frame-char-width)
(/ (float (frame-pixel-width)) (window-total-width (frame-root-window)))))
(defun which-key--char-reduced-p (&optional _frame)
(< (frame-char-width)
(/ (float (frame-pixel-width)) (window-total-width (frame-root-window)))))
(defun which-key--char-exact-p (&optional _frame)
(= (frame-char-width)
(/ (float (frame-pixel-width)) (window-total-width (frame-root-window)))))
(defun which-key--width-or-percentage-to-width (width-or-percentage)
"Return window total width.
If WIDTH-OR-PERCENTAGE is a whole number, return it unchanged. Otherwise, it
should be a percentage (a number between 0 and 1) out of the frame's width.
More precisely, it should be a percentage out of the frame's root window's
total width."
(if (wholenump width-or-percentage)
width-or-percentage
(round (* width-or-percentage (window-total-width (frame-root-window))))))
(defun which-key--height-or-percentage-to-height (height-or-percentage)
"Return window total height.
If HEIGHT-OR-PERCENTAGE is a whole number, return it unchanged. Otherwise, it
should be a percentage (a number between 0 and 1) out of the frame's height.
More precisely, it should be a percentage out of the frame's root window's
total height."
(if (wholenump height-or-percentage)
height-or-percentage
(round (* height-or-percentage (window-total-height (frame-root-window))))))
(defun which-key--frame-size-changed-p ()
"Non-nil if a change in frame size is detected."
(let ((new-size (cons (frame-width) (frame-height))))
(cond ((null which-key--previous-frame-size)
(setq which-key--previous-frame-size new-size)
nil)
((not (equal which-key--previous-frame-size new-size))
(setq which-key--previous-frame-size new-size)))))
;;; Show/hide which-key buffer
(defun which-key--hide-popup ()
"This function is called to hide the which-key buffer."
(unless (or which-key-persistent-popup
(member real-this-command which-key--paging-functions))
(setq which-key--last-try-2-loc nil)
(setq which-key--pages-obj nil)
(setq which-key--automatic-display nil)
(setq which-key--prior-show-keymap-args nil)
(when (and which-key-idle-secondary-delay which-key--secondary-timer-active)
(which-key--start-timer))
(which-key--lighter-restore)
(which-key--hide-popup-ignore-command)))
(defun which-key--hide-popup-ignore-command ()
"Version of `which-key--hide-popup' without the check of
`real-this-command'."
(cl-case which-key-popup-type
;; Not necessary to hide minibuffer
;; (minibuffer (which-key--hide-buffer-minibuffer))
(side-window (which-key--hide-buffer-side-window))
(frame (which-key--hide-buffer-frame))
(custom (funcall which-key-custom-hide-popup-function))))
(defun which-key--hide-popup-on-frame-size-change (&optional _)
"Hide which-key popup if the frame is resized (to trigger a new popup)."
(when (which-key--frame-size-changed-p)
(which-key--hide-popup)))
(defun which-key--hide-buffer-side-window ()
"Hide which-key buffer when side-window popup is used."
(when (buffer-live-p which-key--buffer)
;; in case which-key buffer was shown in an existing window, `quit-window'
;; will re-show the previous buffer, instead of closing the window
(quit-windows-on which-key--buffer)
(when (and which-key-preserve-window-configuration
which-key--saved-window-configuration)
(set-window-configuration which-key--saved-window-configuration)
(setq which-key--saved-window-configuration nil))))
(defun which-key--hide-buffer-frame ()
"Hide which-key buffer when frame popup is used."
(when (frame-live-p which-key--frame)
(delete-frame which-key--frame)))
(defun which-key--popup-showing-p ()
(and (bufferp which-key--buffer)
(or (window-live-p (get-buffer-window which-key--buffer))
(let ((window (get-buffer-window which-key--buffer t)))
(and (window-live-p window)
(frame-visible-p (window-frame window)))))))
(defun which-key--show-popup (act-popup-dim)
"Show the which-key buffer.
ACT-POPUP-DIM includes the dimensions, (height . width) of the
buffer text to be displayed in the popup. Return nil if no window
is shown, or if there is no need to start the closing timer."
(when (and (> (car act-popup-dim) 0)
(> (cdr act-popup-dim) 0))
(cl-case which-key-popup-type
;; Not called for minibuffer
;; (minibuffer (which-key--show-buffer-minibuffer act-popup-dim))
(side-window (which-key--show-buffer-side-window act-popup-dim))
(frame (which-key--show-buffer-frame act-popup-dim))
(custom (funcall which-key-custom-show-popup-function act-popup-dim)))))
(defun which-key--fit-buffer-to-window-horizontally
(&optional window &rest params)
"Slightly modified version of `fit-buffer-to-window'.
Use &rest params because `fit-buffer-to-window' has a different
call signature in different emacs versions"
(let ((fit-window-to-buffer-horizontally t)
(window-min-height 1))
(apply #'fit-window-to-buffer window params)))
(defun which-key--show-buffer-side-window (act-popup-dim)
"Show which-key buffer when popup type is side-window."
(when (and which-key-preserve-window-configuration
(not which-key--saved-window-configuration))
(setq which-key--saved-window-configuration (current-window-configuration)))
(let* ((height (car act-popup-dim))
(width (cdr act-popup-dim))
(alist
(if which-key-allow-imprecise-window-fit
`((window-width . ,(which-key--text-width-to-total width))
(window-height . ,height)
(side . ,which-key-side-window-location)
(slot . ,which-key-side-window-slot))
`((window-width . which-key--fit-buffer-to-window-horizontally)
(window-height . (lambda (w) (fit-window-to-buffer w nil 1)))
(side . ,which-key-side-window-location)
(slot . ,which-key-side-window-slot)))))
;; Previously used `display-buffer-in-major-side-window' here, but
;; apparently that is meant to be an internal function. See emacs bug #24828
;; and advice given there.
(cond
((eq which-key--multiple-locations t)
;; possibly want to switch sides in this case so we can't reuse the window
(delete-windows-on which-key--buffer)
(display-buffer-in-side-window which-key--buffer alist))
((get-buffer-window which-key--buffer)
(display-buffer-reuse-window which-key--buffer alist))
(t
(display-buffer-in-side-window which-key--buffer alist)))))
(defun which-key--show-buffer-frame (act-popup-dim)
"Show which-key buffer when popup type is frame."
(let* (;(orig-window (selected-window))
(frame-height (+ (car act-popup-dim)
(if (with-current-buffer which-key--buffer
mode-line-format)
1
0)))
;; without adding 2, frame sometimes isn't wide enough for the buffer.
;; this is probably because of the fringes. however, setting fringes
;; sizes to 0 (instead of adding 2) didn't always make the frame wide
;; enough. don't know why it is so.
(frame-width (+ (cdr act-popup-dim) 2))
(new-window (if (and (frame-live-p which-key--frame)
(eq which-key--buffer
(window-buffer
(frame-root-window which-key--frame))))
(which-key--show-buffer-reuse-frame
frame-height frame-width)
(which-key--show-buffer-new-frame
frame-height frame-width))))
(when new-window
;; display successful
(setq which-key--frame (window-frame new-window))
new-window)))
(defun which-key--show-buffer-new-frame (frame-height frame-width)
"Helper for `which-key--show-buffer-frame'."
(let* ((frame-params `((height . ,frame-height)
(width . ,frame-width)
;; tell the window manager to respect the given sizes
(user-size . t)
;; which-key frame doesn't need a minibuffer
(minibuffer . nil)
(name . "which-key")
;; no need for scroll bars in which-key frame
(vertical-scroll-bars . nil)
;; (left-fringe . 0)
;; (right-fringe . 0)
;; (right-divider-width . 0)
;; make sure frame is visible
(visibility . t)))
(alist `((pop-up-frame-parameters . ,frame-params)))
(orig-frame (selected-frame))
(new-window (display-buffer-pop-up-frame which-key--buffer alist)))
(when new-window
;; display successful
(redirect-frame-focus (window-frame new-window) orig-frame)
new-window)))
(defun which-key--show-buffer-reuse-frame (frame-height frame-width)
"Helper for `which-key--show-buffer-frame'."
(let ((window
(display-buffer-reuse-window
which-key--buffer `((reusable-frames . ,which-key--frame)))))
(when window
;; display successful
(set-frame-size (window-frame window) frame-width frame-height)
window)))
;;; Max dimension of available window functions
(defun which-key--popup-max-dimensions ()
"Dimesion functions should return the maximum possible (height
. width) of the intended popup. SELECTED-WINDOW-WIDTH is the
width of currently active window, not the which-key buffer
window."
(cl-case which-key-popup-type
(minibuffer (which-key--minibuffer-max-dimensions))
(side-window (which-key--side-window-max-dimensions))
(frame (which-key--frame-max-dimensions))
(custom (funcall which-key-custom-popup-max-dimensions-function
(window-width)))))
(defun which-key--minibuffer-max-dimensions ()
"Return max-dimensions of minibuffer (height . width).
Measured in lines and characters respectively."
(cons
;; height
(if (floatp max-mini-window-height)
(floor (* (frame-text-lines)
max-mini-window-height))
max-mini-window-height)
;; width
(max 0 (- (frame-text-cols) which-key-unicode-correction))))
(defun which-key--side-window-max-dimensions ()
"Return max-dimensions of the side-window popup (height .
width) in lines and characters respectively."
(cons
;; height
(if (member which-key-side-window-location '(left right))
;; 1 is a kludge to make sure there is no overlap
(- (frame-height) (window-text-height (minibuffer-window)) 1)
;; (window-mode-line-height which-key--window))
;; FIXME: change to something like
;; (min which-*-height (calculate-max-height))
(which-key--height-or-percentage-to-height
which-key-side-window-max-height))
;; width
(max 0
(- (if (member which-key-side-window-location '(left right))
(which-key--total-width-to-text
(which-key--width-or-percentage-to-width
which-key-side-window-max-width))
(which-key--total-width-to-text
(which-key--width-or-percentage-to-width
1.0)))
which-key-unicode-correction))))
(defun which-key--frame-max-dimensions ()
"Return max-dimensions of the frame popup (height .
width) in lines and characters respectively."
(cons which-key-frame-max-height which-key-frame-max-width))
;;; Sorting functions
(defun which-key--string< (a b &optional alpha)
(let ((da (downcase a))
(db (downcase b)))
(cond
((and alpha (not which-key-sort-uppercase-first))
(if (string-equal da db)
(not (string-lessp a b))
(string-lessp da db)))
((and alpha which-key-sort-uppercase-first)
(if (string-equal da db)
(string-lessp a b)
(string-lessp da db)))
((not which-key-sort-uppercase-first)
(let ((aup (not (string-equal da a)))
(bup (not (string-equal db b))))
(if (eq aup bup)
(string-lessp a b)
bup)))
(t (string-lessp a b)))))
(defun which-key--key-description< (a b &optional alpha)
"Sorting function used for `which-key-key-order' and
`which-key-key-order-alpha'."
(save-match-data
(let* ((a (which-key--extract-key a))
(b (which-key--extract-key b))
(rngrgxp "^\\([^ ]+\\) \\.\\. [^ ]+")
(a (if (string-match rngrgxp a) (match-string 1 a) a))
(b (if (string-match rngrgxp b) (match-string 1 b) b))
(aem? (string-equal a ""))
(bem? (string-equal b ""))
(a1? (= 1 (length a)))
(b1? (= 1 (length b)))
(srgxp "^\\(RET\\|SPC\\|TAB\\|DEL\\|LFD\\|ESC\\|NUL\\)")
(asp? (string-match-p srgxp a))
(bsp? (string-match-p srgxp b))
(prrgxp "^\\(M\\|C\\|S\\|A\\|H\\|s\\)-")
(apr? (string-match-p prrgxp a))
(bpr? (string-match-p prrgxp b))
(afn? (string-match-p "<f[0-9]+>" a))
(bfn? (string-match-p "<f[0-9]+>" b)))
(cond ((or aem? bem?) (and aem? (not bem?)))
((and asp? bsp?)
(if (string-equal (substring a 0 3) (substring b 0 3))
(which-key--key-description<
(substring a 3) (substring b 3) alpha)
(which-key--string< a b alpha)))
((or asp? bsp?) asp?)
((and a1? b1?) (which-key--string< a b alpha))
((or a1? b1?) a1?)
((and afn? bfn?)
(< (string-to-number
(replace-regexp-in-string "<f\\([0-9]+\\)>" "\\1" a))
(string-to-number
(replace-regexp-in-string "<f\\([0-9]+\\)>" "\\1" b))))
((or afn? bfn?) afn?)
((and apr? bpr?)
(if (string-equal (substring a 0 2) (substring b 0 2))
(which-key--key-description<
(substring a 2) (substring b 2) alpha)
(which-key--string< a b alpha)))
((or apr? bpr?) apr?)
(t (which-key--string< a b alpha))))))
(defsubst which-key-key-order-alpha (acons bcons)
"Order key descriptions A and B.
Order is lexicographic within a \"class\", where the classes and
the ordering of classes are listed below.
special (SPC,TAB,...) < single char < mod (C-,M-,...) < other.
Sorts single characters alphabetically with lowercase coming
before upper."
(which-key--key-description< (car acons) (car bcons) t))
(defsubst which-key-key-order (acons bcons)
"Order key descriptions A and B.
Order is lexicographic within a \"class\", where the classes and
the ordering of classes are listed below.
special (SPC,TAB,...) < single char < mod (C-,M-,...) < other."
(which-key--key-description< (car acons) (car bcons)))
(defsubst which-key-description-order (acons bcons)
"Order descriptions of A and B.
Uses `string-lessp' after applying lowercase."
(string-lessp (downcase (cdr acons)) (downcase (cdr bcons))))
(defsubst which-key--group-p (description)
(or (string-equal description "prefix")
(string-match-p "^group:" description)
(keymapp (intern description))))
(defun which-key-prefix-then-key-order (acons bcons)
"Order first by whether A and/or B is a prefix with no prefix
coming before a prefix. Within these categories order using
`which-key-key-order'."
(let ((apref? (which-key--group-p (cdr acons)))
(bpref? (which-key--group-p (cdr bcons))))
(if (not (eq apref? bpref?))
(and (not apref?) bpref?)
(which-key-key-order acons bcons))))
(defun which-key-prefix-then-key-order-reverse (acons bcons)
"Order first by whether A and/or B is a prefix with prefix
coming before a prefix. Within these categories order using
`which-key-key-order'."
(let ((apref? (which-key--group-p (cdr acons)))
(bpref? (which-key--group-p (cdr bcons))))
(if (not (eq apref? bpref?))
(and apref? (not bpref?))
(which-key-key-order acons bcons))))
(defun which-key-local-then-key-order (acons bcons)
"Order first by whether A and/or B is a local binding with
local bindings coming first. Within these categories order using
`which-key-key-order'."
(let ((aloc? (which-key--local-binding-p acons))
(bloc? (which-key--local-binding-p bcons)))
(if (not (eq aloc? bloc?))
(and aloc? (not bloc?))
(which-key-key-order acons bcons))))
;;; Functions for retrieving and formatting keys
(defsubst which-key--string-width (maybe-string)
"If MAYBE-STRING is a string use `which-key--string-width' o/w return 0."
(if (stringp maybe-string) (string-width maybe-string) 0))
(defsubst which-key--butlast-string (str)
(mapconcat #'identity (butlast (split-string str)) " "))
(defun which-key--match-replacement (key-binding replacement)
;; these are mode specific ones to ignore. The mode specific case is
;; handled in the selection of alist
(when (and (consp key-binding) (not (symbolp (car replacement))))
(let ((key-regexp (caar replacement))
(binding-regexp (cdar replacement))
case-fold-search)
(and (or (null key-regexp)
(string-match-p key-regexp
(car key-binding)))
(or (null binding-regexp)
(string-match-p binding-regexp
(cdr key-binding)))))))
(defsubst which-key--replace-in-binding (key-binding repl)
(cond ((or (not (consp repl)) (null (cdr repl)))
key-binding)
((functionp (cdr repl))
(funcall (cdr repl) key-binding))
((consp (cdr repl))
(cons
(cond ((and (caar repl) (cadr repl))
(replace-regexp-in-string
(caar repl) (cadr repl) (car key-binding) t))
((cadr repl) (cadr repl))
(t (car key-binding)))
(cond ((and (cdar repl) (cddr repl))
(replace-regexp-in-string
(cdar repl) (cddr repl) (cdr key-binding) t))
((cddr repl) (cddr repl))
(t (cdr key-binding)))))))
(defun which-key--replace-in-repl-list-once (key-binding repls)
(cl-dolist (repl repls)
(when (which-key--match-replacement key-binding repl)
(cl-return `(replaced . ,(which-key--replace-in-binding key-binding repl))))))
(defun which-key--replace-in-repl-list-many (key-binding repls)
(let (found)
(dolist (repl repls)
(when (which-key--match-replacement key-binding repl)
(setq found 't)
(setq key-binding (which-key--replace-in-binding key-binding repl))))
(when found `(replaced . ,key-binding))))
(defun which-key--maybe-replace (key-binding)
"Use `which-key--replacement-alist' to maybe replace KEY-BINDING.
KEY-BINDING is a cons cell of the form \(KEY . BINDING\) each of
which are strings. KEY is of the form produced by `key-binding'."
(let* ((replacer (if which-key-allow-multiple-replacements
#'which-key--replace-in-repl-list-many
#'which-key--replace-in-repl-list-once)))
(pcase
(apply replacer
(list key-binding
(cdr-safe (assq major-mode which-key-replacement-alist))))
(`(replaced . ,repl)
(if which-key-allow-multiple-replacements
(pcase (apply replacer (list repl which-key-replacement-alist))
(`(replaced . ,repl) repl)
('() repl))
repl))
('()
(pcase (apply replacer (list key-binding which-key-replacement-alist))
(`(replaced . ,repl) repl)
('() key-binding))))))
(defsubst which-key--current-key-list (&optional key-str)
(append (listify-key-sequence (which-key--current-prefix))
(when key-str
(listify-key-sequence (kbd key-str)))))
(defsubst which-key--current-key-string (&optional key-str)
(key-description (which-key--current-key-list key-str)))
(defun which-key--local-binding-p (keydesc)
(eq (which-key--safe-lookup-key-description
(current-local-map)
(which-key--current-key-string (car keydesc)))
(intern (cdr keydesc))))
(defun which-key--map-binding-p (map keydesc)
"Does MAP contain KEYDESC = (key . binding)?"
(or
(when (bound-and-true-p evil-state)
(let ((lookup
(which-key--safe-lookup-key-description
map
(which-key--current-key-string
(format "<%s-state> %s" evil-state (car keydesc))))))
(or (eq lookup (intern (cdr keydesc)))
(and (keymapp lookup) (string= (cdr keydesc) "Prefix Command")))))
(let ((lookup
(which-key--safe-lookup-key-description
map (which-key--current-key-string (car keydesc)))))
(or (eq lookup (intern (cdr keydesc)))
(and (keymapp lookup) (string= (cdr keydesc) "Prefix Command"))))))
(defun which-key--maybe-get-prefix-title (keys)
"KEYS is a string produced by `key-description'.
A title is possibly returned using
`which-key--prefix-title-alist'. An empty string is returned if
no title exists."
(cond
((not (string-equal keys ""))
(let* ((title-res
(cdr-safe (assoc-string keys which-key--prefix-title-alist)))
(repl-res
(cdr-safe (which-key--maybe-replace (cons keys ""))))
(binding (key-binding (kbd keys)))
(alternate (when (and binding (symbolp binding))
(symbol-name binding))))
(cond (title-res title-res)
((not (string-equal repl-res "")) repl-res)
((and (eq which-key-show-prefix 'echo) alternate)
alternate)
((and (member which-key-show-prefix '(bottom top mode-line))
(eq which-key-side-window-location 'bottom)
echo-keystrokes)
(if alternate alternate
(concat "Following " keys)))
(t ""))))
(t "")))
(defun which-key--propertize (string &rest properties)
"Version of `propertize' that checks type of STRING."
(when (stringp string)
(apply #'propertize string properties)))
(defun which-key--propertize-key (key)
"Add a face to KEY.
If KEY contains any \"special keys\" defined in
`which-key-special-keys' then truncate and add the corresponding
`which-key-special-key-face'."
(let ((key-w-face (which-key--propertize key 'face 'which-key-key-face))
(regexp (concat "\\("
(mapconcat #'identity which-key-special-keys
"\\|")
"\\)"))
case-fold-search)
(save-match-data
(if (and which-key-special-keys
(string-match regexp key))
(let ((beg (match-beginning 0)) (end (match-end 0)))
(concat (substring key-w-face 0 beg)
(which-key--propertize (substring key-w-face beg (1+ beg))
'face 'which-key-special-key-face)
(substring key-w-face end
(which-key--string-width key-w-face))))
key-w-face))))
(defsubst which-key--truncate-description (desc avl-width)
"Truncate DESC description to `which-key-max-description-length'."
(let* ((max which-key-max-description-length)
(max (cl-etypecase max
(null nil)
(integer max)
(float (truncate (* max avl-width)))
(function (let ((val (funcall max avl-width)))
(if (floatp val) (truncate val) val))))))
(if (and max (> (length desc) max))
(let ((dots (and (not (equal which-key-ellipsis ""))
(which-key--propertize
which-key-ellipsis 'face
(get-text-property (1- (length desc)) 'face desc)))))
(if dots
(concat (substring desc 0 (- max (length dots))) dots)
(substring desc 0 max)))
desc)))
(defun which-key--highlight-face (description)
"Return the highlight face for DESCRIPTION if it has one."
(let (face)
(dolist (el which-key-highlighted-command-list)
(unless face
(cond ((consp el)
(when (string-match-p (car el) description)
(setq face (cdr el))))
((stringp el)
(when (string-match-p el description)
(setq face 'which-key-highlighted-command-face)))
(t
(message "which-key: warning: element %s of \
which-key-highlighted-command-list is not a string or a cons
cell" el)))))
face))
(defun which-key--propertize-description
(description group local hl-face &optional original-description)
"Add face to DESCRIPTION where the face chosen depends on
whether the description represents a group or a command. Also
make some minor adjustments to the description string, like
removing a \"group:\" prefix.
ORIGINAL-DESCRIPTION is the description given by
`describe-buffer-bindings'."
(when description
(let* ((desc description)
(desc (if (string-match-p "^group:" desc)
(substring desc 6) desc))
(desc (if group (concat which-key-prefix-prefix desc) desc)))
(make-text-button
desc nil
'face (cond (hl-face hl-face)
(group 'which-key-group-description-face)
(local 'which-key-local-map-description-face)
(t 'which-key-command-description-face))
'help-echo (cond
((and original-description
(fboundp (intern original-description))
(documentation (intern original-description))
;; tooltip-mode doesn't exist in emacs-nox
(boundp 'tooltip-mode) tooltip-mode)
(documentation (intern original-description)))
((and original-description
(fboundp (intern original-description))
(documentation (intern original-description))
(let* ((doc (documentation
(intern original-description)))
(str (replace-regexp-in-string "\n" " " doc))
(max (floor (* (frame-width) 0.8))))
(if (> (length str) max)
(concat (substring str 0 max) "...")
str)))))))))
(defun which-key--extract-key (key-str)
"Pull the last key (or key range) out of KEY-STR."
(save-match-data
(let ((key-range-regexp "\\`.*\\([^ \t]+ \\.\\. [^ \t]+\\)\\'"))
(if (string-match key-range-regexp key-str)
(match-string 1 key-str)
(car (last (split-string key-str " ")))))))
(defun which-key--maybe-add-docstring (current original)
"Maybe concat a docstring to CURRENT and return result.
Specifically, do this if ORIGINAL is a command with a docstring
and `which-key-show-docstrings' is non-nil. If
`which-key-show-docstrings' is the symbol docstring-only, just
return the docstring."
(let* ((orig-sym (intern original))
(doc (when (commandp orig-sym)
(documentation orig-sym)))
(doc (when doc
(replace-regexp-in-string
(concat "^\\(?::"
(regexp-opt '("around" "override"
"after" "after-until" "after-while"
"before" "before-until" "before-while"
"filter-args" "filter-return"))
" advice: [^\n]+\n"
"\\)+\n")
"" doc)))
(docstring (when doc
(which-key--propertize (car (split-string doc "\n"))
'face 'which-key-docstring-face))))
(cond ((not (and which-key-show-docstrings docstring))
current)
((eq which-key-show-docstrings 'docstring-only)
docstring)
(t
(format "%s %s" current docstring)))))
(defun which-key--format-and-replace (unformatted &optional preserve-full-key)
"Take a list of (key . desc) cons cells in UNFORMATTED, add
faces and perform replacements according to the three replacement
alists. Returns a list (key separator description)."
(let ((sep-w-face
(which-key--propertize which-key-separator
'face 'which-key-separator-face))
(local-map (current-local-map))
(avl-width (cdr (which-key--popup-max-dimensions)))
new-list)
(dolist (key-binding unformatted)
(let* ((keys (car key-binding))
(orig-desc (cdr key-binding))
(group (which-key--group-p orig-desc))
(local (eq (which-key--safe-lookup-key-description
local-map keys)
(intern orig-desc)))
(hl-face (which-key--highlight-face orig-desc))
(key-binding (which-key--maybe-replace key-binding))
(final-desc (which-key--propertize-description
(cdr key-binding) group local hl-face orig-desc)))
(when final-desc
(setq final-desc
(which-key--truncate-description
(which-key--maybe-add-docstring final-desc orig-desc)
avl-width)))
(when (consp key-binding)
(push
(list (which-key--propertize-key
(if preserve-full-key
(car key-binding)
(which-key--extract-key (car key-binding))))
sep-w-face
final-desc)
new-list))))
(nreverse new-list)))
(defun which-key--compute-binding (binding)
"Replace BINDING with remapped binding if it exists.
Requires `which-key-compute-remaps' to be non-nil"
(let (remap)
(if (and which-key-compute-remaps
(setq remap (command-remapping binding)))
(copy-sequence (symbol-name remap))
(copy-sequence (symbol-name binding)))))
(defun which-key--get-menu-item-binding (def)
"Retrieve binding for menu-item"
;; see `keymap--menu-item-binding'
(let* ((binding (nth 2 def))
(plist (nthcdr 3 def))
(filter (plist-get plist :filter)))
(if filter (funcall filter binding) binding)))
(defun which-key--get-keymap-bindings-1
(keymap start &optional prefix filter all ignore-commands)
"See `which-key--get-keymap-bindings'."
(let ((bindings start)
(prefix-map (if prefix (lookup-key keymap prefix) keymap)))
(when (keymapp prefix-map)
(map-keymap
(lambda (ev def)
(let* ((key (vconcat prefix (list ev)))
(key-desc (key-description key)))
(cond
((assoc key-desc bindings))
((and (listp ignore-commands) (symbolp def) (memq def ignore-commands)))
((or (string-match-p
which-key--ignore-non-evil-keys-regexp key-desc)
(eq ev 'menu-bar)))
((and (keymapp def)
(string-match-p which-key--evil-keys-regexp key-desc)))
((and (keymapp def)
(or all
;; event 27 is escape, so this will pick up meta
;; bindings and hopefully not too much more
(and (numberp ev) (= ev 27))))
(setq bindings
(which-key--get-keymap-bindings-1
keymap bindings key nil all ignore-commands)))
(def
(let* ((def (if (eq 'menu-item (car-safe def))
(which-key--get-menu-item-binding def)
def))
(binding
(cons key-desc
(cond
((symbolp def) (which-key--compute-binding def))
((keymapp def) "prefix")
((eq 'lambda (car-safe def)) "lambda")
((eq 'closure (car-safe def)) "closure")
((stringp def) def)
((vectorp def) (key-description def))
((and (consp def)
;; looking for (STRING . DEFN)
(stringp (car def)))
(concat (when (keymapp (cdr-safe def))
"group:")
(car def)))
(t "unknown")))))
(when (or (null filter)
(and (functionp filter)
(funcall filter binding)))
(push binding bindings)))))))
prefix-map))
bindings))
(defun which-key--get-keymap-bindings
(keymap &optional start prefix filter all evil)
"Retrieve top-level bindings from KEYMAP.
PREFIX limits bindings to those starting with this key
sequence. START is a list of existing bindings to add to. If ALL
is non-nil, recursively retrieve all bindings below PREFIX. If
EVIL is non-nil, extract active evil bidings."
(let ((bindings start)
(ignore '(self-insert-command ignore ignore-event company-ignore))
(evil-map
(when (and evil (bound-and-true-p evil-local-mode))
(lookup-key keymap (kbd (format "<%s-state>" evil-state))))))
(when (keymapp evil-map)
(setq bindings (which-key--get-keymap-bindings-1
evil-map bindings prefix filter all ignore)))
(which-key--get-keymap-bindings-1
keymap bindings prefix filter all ignore)))
(defun which-key--get-current-bindings (&optional prefix filter)
"Generate a list of current active bindings."
(let (bindings)
(dolist (map (current-active-maps t) bindings)
(when (cdr map)
(setq bindings
(which-key--get-keymap-bindings
map bindings prefix filter))))))
(defun which-key--get-bindings (&optional prefix keymap filter recursive)
"Collect key bindings.
If KEYMAP is nil, collect from current buffer using the current
key sequence as a prefix. Otherwise, collect from KEYMAP. FILTER
is a function to use to filter the bindings. If RECURSIVE is
non-nil, then bindings are collected recursively for all prefixes."
(let* ((unformatted
(cond ((keymapp keymap)
(which-key--get-keymap-bindings
keymap nil prefix filter recursive))
(keymap
(error "%s is not a keymap" keymap))
(t
(which-key--get-current-bindings prefix filter)))))
(when which-key-sort-order
(setq unformatted
(sort unformatted which-key-sort-order)))
(which-key--format-and-replace unformatted recursive)))
;;; Functions for laying out which-key buffer pages
(defun which-key--normalize-columns (columns)
"Pad COLUMNS to the same length using empty strings."
(let ((max-len (cl-reduce (lambda (a x) (max a (length x))) columns
:initial-value 0)))
(mapcar
(lambda (c)
(if (< (length c) max-len)
(append c (make-list (- max-len (length c)) ""))
c))
columns)))
(defsubst which-key--join-columns (columns)
"Transpose columns into rows, concat rows into lines and rows into page."
(let* ((padded (which-key--normalize-columns (nreverse columns)))
(rows (apply #'cl-mapcar #'list padded)))
(mapconcat (lambda (row) (mapconcat #'identity row " ")) rows "\n")))
(defsubst which-key--max-len (keys index &optional initial-value)
"Internal function for finding the max length of the INDEX
element in each list element of KEYS."
(cl-reduce
(lambda (x y) (max x (which-key--string-width (nth index y))))
keys :initial-value (if initial-value initial-value 0)))
(defun which-key--pad-column (col-keys avl-width)
"Take a column of (key separator description) COL-KEYS,
calculate the max width in the column and pad all cells out to
that width."
(let* ((col-key-width (+ which-key-add-column-padding
(which-key--max-len col-keys 0)))
(col-sep-width (which-key--max-len col-keys 1))
(avl-width (- avl-width col-key-width col-sep-width))
(col-desc-width (min avl-width
(which-key--max-len
col-keys 2
which-key-min-column-description-width)))
(col-width (+ col-key-width col-sep-width col-desc-width))
(col-format (concat "%" (int-to-string col-key-width)
"s%s%-" (int-to-string col-desc-width) "s")))
(cons col-width
(mapcar (lambda (k) (apply #'format col-format k))
col-keys))))
(defun which-key--partition-list (n list)
"Partition LIST into N-sized sublists."
(let (res)
(while list
(setq res (cons (cl-subseq list 0 (min n (length list))) res)
list (nthcdr n list)))
(nreverse res)))
(defun which-key--list-to-pages (keys avl-lines avl-width)
"Convert list of KEYS to columns based on dimensions AVL-LINES and AVL-WIDTH.
Returns a `which-key--pages' object that holds the page strings,
as well as metadata."
(let ((cols-w-widths (mapcar (lambda (c) (which-key--pad-column c avl-width))
(which-key--partition-list avl-lines keys)))
(page-width 0) (n-pages 0) (n-keys 0) (n-columns 0)
page-cols pages page-widths keys/page col)
(if (> (apply #'max (mapcar #'car cols-w-widths)) avl-width)
;; give up if no columns fit
nil
(while cols-w-widths
;; start new page
(cl-incf n-pages)
(setq col (pop cols-w-widths))
(setq page-cols (list (cdr col)))
(setq page-width (car col))
(setq n-keys (length (cdr col)))
(setq n-columns 1)
;; add additional columns as long as they fit
(while (and cols-w-widths
(or (null which-key-max-display-columns)
(< n-columns which-key-max-display-columns))
(<= (+ page-width 1 (caar cols-w-widths)) avl-width))
(setq col (pop cols-w-widths))
(push (cdr col) page-cols)
(cl-incf page-width (1+ (car col)))
(cl-incf n-keys (length (cdr col)))
(cl-incf n-columns))
(push (which-key--join-columns page-cols) pages)
(push n-keys keys/page)
(push page-width page-widths))
(make-which-key--pages
:pages (nreverse pages)
:height (if (> n-pages 1) avl-lines (min avl-lines n-keys))
:widths (nreverse page-widths)
:keys/page (reverse keys/page)
:page-nums (number-sequence 1 n-pages)
:num-pages n-pages
:total-keys (apply #'+ keys/page)))))
(defun which-key--create-pages-1
(keys available-lines available-width &optional min-lines vertical)
"Create page strings using `which-key--list-to-pages'.
Will try to find the best number of rows and columns using the
given dimensions and the length and widths of ITEMS. Use VERTICAL
if the ITEMS are laid out vertically and the number of columns
should be minimized."
(let ((result (which-key--list-to-pages
keys available-lines available-width))
(min-lines (or min-lines 0))
found prev-result)
(if (or (null result)
vertical
(> (which-key--pages-num-pages result) 1)
(= 1 available-lines))
result
;; simple search for a fitting page
(while (and (> available-lines min-lines)
(not found))
(setq available-lines (- available-lines 1)
prev-result result
result (which-key--list-to-pages
keys available-lines available-width)
found (> (which-key--pages-num-pages result) 1)))
(if found prev-result result))))
(defun which-key--create-pages (keys &optional prefix-keys prefix-title)
"Create page strings using `which-key--list-to-pages'.
Will try to find the best number of rows and columns using the
given dimensions and the length and wdiths of KEYS. SEL-WIN-WIDTH
is the width of the live window."
(let* ((max-dims (which-key--popup-max-dimensions))
(max-lines (car max-dims))
(max-width (cdr max-dims))
(prefix-desc (key-description prefix-keys))
(full-prefix (which-key--full-prefix prefix-desc))
(prefix (when (eq which-key-show-prefix 'left)
(+ 2 (which-key--string-width full-prefix))))
(prefix-top-bottom (member which-key-show-prefix '(bottom top)))
(avl-lines (if prefix-top-bottom (- max-lines 1) max-lines))
(min-lines (min avl-lines which-key-min-display-lines))
(avl-width (if prefix (- max-width prefix) max-width))
(vertical (or (and (eq which-key-popup-type 'side-window)
(member which-key-side-window-location '(left right)))
(eq which-key-max-display-columns 1)))
result)
(setq result
(which-key--create-pages-1
keys avl-lines avl-width min-lines vertical))
(when (and result
(> (which-key--pages-num-pages result) 0))
(setf (which-key--pages-prefix result) prefix-keys)
(setf (which-key--pages-prefix-title result)
(or prefix-title
(which-key--maybe-get-prefix-title
(key-description prefix-keys))))
(when prefix-top-bottom
;; Add back the line earlier reserved for the page information.
(setf (which-key--pages-height result) max-lines))
(when (and (= (which-key--pages-num-pages result) 1)
(> which-key-min-display-lines
(which-key--pages-height result)))
;; result is shorter than requested, so we artificially increase the
;; height. See #325. Note this only has an effect if
;; `which-key-allow-imprecise-window-fit' is non-nil.
(setf (which-key--pages-height result) which-key-min-display-lines))
(which-key--debug-message "Frame height: %s
Minibuffer height: %s
Max dimensions: (%s,%s)
Available for bindings: (%s,%s)
Actual lines: %s" (frame-height) (window-text-height (minibuffer-window))
max-lines max-width avl-lines avl-width (which-key--pages-height result))
result)))
(defun which-key--lighter-status ()
"Possibly show number of keys and total in the mode line."
(when which-key-show-remaining-keys
(let ((n-shown (car (which-key--pages-keys/page which-key--pages-obj)))
(n-tot (which-key--pages-total-keys which-key--pages-obj)))
(setcar (cdr (assq 'which-key-mode minor-mode-alist))
(format " WK: %s/%s keys" n-shown n-tot)))))
(defun which-key--lighter-restore ()
"Restore the lighter for which-key."
(when which-key-show-remaining-keys
(setcar (cdr (assq 'which-key-mode minor-mode-alist))
which-key-lighter)))
(defun which-key--echo (text)
"Echo TEXT to minibuffer without logging."
(let (message-log-max)
(message "%s" text)))
(defun which-key--next-page-hint (prefix-keys)
"Return string for next page hint."
(let* ((paging-key (concat prefix-keys " " which-key-paging-key))
(paging-key-bound (eq 'which-key-C-h-dispatch
(key-binding (kbd paging-key))))
(key (key-description (vector help-char)))
(key (if paging-key-bound
(concat key " or " which-key-paging-key)
key)))
(when (and which-key-use-C-h-commands
(not (equal (vector help-char)
(vconcat (kbd prefix-keys)))))
(which-key--propertize (format "[%s paging/help]" key)
'face 'which-key-note-face))))
(eval-and-compile
(if (fboundp 'universal-argument--description)
(defalias 'which-key--universal-argument--description
#'universal-argument--description)
(defun which-key--universal-argument--description ()
;; Backport of the definition of universal-argument--description in
;; emacs25 on 2015-12-04
(when prefix-arg
(concat "C-u"
(pcase prefix-arg
(`(-) " -")
(`(,(and (pred integerp) n))
(let ((str ""))
(while (and (> n 4) (= (mod n 4) 0))
(setq str (concat str " C-u"))
(setq n (/ n 4)))
(if (= n 4) str (format " %s" prefix-arg))))
(_ (format " %s" prefix-arg))))))))
(defun which-key--full-prefix (prefix-keys &optional -prefix-arg dont-prop-keys)
"Return a description of the full key sequence up to now,
including prefix arguments."
(let* ((left (eq which-key-show-prefix 'left))
(prefix-arg (if -prefix-arg -prefix-arg prefix-arg))
(str (concat
(which-key--universal-argument--description)
(when prefix-arg " ")
prefix-keys))
(dash (if (and (not (string= prefix-keys ""))
(null left)) "-" "")))
(if (or (eq which-key-show-prefix 'echo) dont-prop-keys)
(concat str dash)
(concat (which-key--propertize-key str)
(which-key--propertize dash 'face 'which-key-key-face)))))
(defun which-key--get-popup-map ()
"Generate transient-map for use in the top level binding display."
(unless which-key--automatic-display
(let ((map (make-sparse-keymap)))
(define-key map (kbd which-key-paging-key) #'which-key-C-h-dispatch)
(when which-key-use-C-h-commands
;; Show next page even when C-h is pressed
(define-key map (vector help-char) #'which-key-C-h-dispatch))
map)))
(defun which-key--process-page (pages-obj)
"Add information to the basic list of key bindings, including
if applicable the current prefix, the name of the current prefix,
and a page count."
(let* ((page (car (which-key--pages-pages pages-obj)))
(height (which-key--pages-height pages-obj))
(n-pages (which-key--pages-num-pages pages-obj))
(page-n (car (which-key--pages-page-nums pages-obj)))
(prefix-desc (key-description (which-key--pages-prefix pages-obj)))
(prefix-title (which-key--pages-prefix-title pages-obj))
(full-prefix (which-key--full-prefix prefix-desc))
(nxt-pg-hint (which-key--next-page-hint prefix-desc))
;; not used in left case
(status-line
(concat (which-key--propertize prefix-title 'face 'which-key-note-face)
(when (< 1 n-pages)
(which-key--propertize (format " (%s of %s)" page-n n-pages)
'face 'which-key-note-face)))))
(pcase which-key-show-prefix
(`left
(let* ((page-cnt (which-key--propertize (format "%s/%s" page-n n-pages)
'face 'which-key-separator-face))
(first-col-width (+ 2 (max (which-key--string-width full-prefix)
(which-key--string-width page-cnt))))
(prefix (format (concat "%-" (int-to-string first-col-width) "s")
full-prefix))
(page-cnt (if (> n-pages 1)
(format
(concat "%-" (int-to-string first-col-width) "s")
page-cnt)
(make-string first-col-width 32)))
lines first-line new-end)
(if (= 1 height)
(cons (concat prefix page) nil)
(setq lines (split-string page "\n")
first-line (concat prefix (car lines) "\n" page-cnt)
new-end (concat "\n" (make-string first-col-width 32)))
(cons
(concat first-line (mapconcat #'identity (cdr lines) new-end))
nil))))
(`top
(cons
(concat (when (or (= 0 echo-keystrokes)
(not (eq which-key-side-window-location 'bottom)))
(concat full-prefix " "))
status-line " " nxt-pg-hint "\n" page)
nil))
(`bottom
(cons
(concat page "\n"
(when (or (= 0 echo-keystrokes)
(not (eq which-key-side-window-location 'bottom)))
(concat full-prefix " "))
status-line " " nxt-pg-hint)
nil))
(`echo
(cons page
(lambda ()
(which-key--echo
(concat full-prefix (when prefix-desc " ")
status-line (when status-line " ")
nxt-pg-hint)))))
(`mode-line
(cons page
(lambda ()
(with-current-buffer which-key--buffer
(setq-local mode-line-format
(concat " " full-prefix
" " status-line
" " nxt-pg-hint))))))
(_ (cons page nil)))))
(defun which-key--show-page (&optional n)
"Show current page.
N changes the current page to the Nth page relative to the
current one."
(which-key--init-buffer) ;; in case it was killed
(let ((prefix-keys (which-key--current-key-string))
golden-ratio-mode)
(if (null which-key--pages-obj)
(message "%s- which-key can't show keys: There is not \
enough space based on your settings and frame size." prefix-keys)
(when n
(setq which-key--pages-obj
(which-key--pages-set-current-page which-key--pages-obj n)))
(let ((page-echo (which-key--process-page which-key--pages-obj))
(height (which-key--pages-height which-key--pages-obj))
(width (car (which-key--pages-widths which-key--pages-obj))))
(which-key--lighter-status)
(if (eq which-key-popup-type 'minibuffer)
(which-key--echo (car page-echo))
(with-current-buffer which-key--buffer
(erase-buffer)
(insert (car page-echo))
(goto-char (point-min)))
(when (cdr page-echo) (funcall (cdr page-echo)))
(which-key--show-popup (cons height width)))))
;; used for paging at top-level
(if (fboundp 'set-transient-map)
(set-transient-map (which-key--get-popup-map))
(with-no-warnings
(set-temporary-overlay-map (which-key--get-popup-map))))))
;;; Paging functions
;;;###autoload
(defun which-key-reload-key-sequence (&optional key-seq)
"Simulate entering the key sequence KEY-SEQ.
KEY-SEQ should be a list of events as produced by
`listify-key-sequence'. If nil, KEY-SEQ defaults to
`which-key--current-key-list'. Any prefix arguments that were
used are reapplied to the new key sequence."
(let* ((key-seq (or key-seq (which-key--current-key-list)))
(next-event (mapcar (lambda (ev) (cons t ev)) key-seq)))
(setq prefix-arg current-prefix-arg
unread-command-events next-event)))
(defun which-key-turn-page (delta)
"Show the next page of keys."
(which-key-reload-key-sequence)
(if which-key--last-try-2-loc
(let ((which-key-side-window-location which-key--last-try-2-loc)
(which-key--multiple-locations t))
(which-key--show-page delta))
(which-key--show-page delta))
(which-key--start-paging-timer))
;;;###autoload
(defun which-key-show-standard-help (&optional _)
"Call the command in `which-key--prefix-help-cmd-backup'.
Usually this is `describe-prefix-bindings'."
(interactive)
(let ((which-key-inhibit t)
(popup-showing (which-key--popup-showing-p)))
(which-key--hide-popup-ignore-command)
(cond ((and (eq which-key--prefix-help-cmd-backup
'describe-prefix-bindings)
;; If the popup is not showing, we call
;; `describe-prefix-bindings' directly.
popup-showing)
;; This is essentially what `describe-prefix-bindings' does. We can't
;; use this function directly, because the prefix will not be correct
;; when we enter using `which-key-C-h-dispatch'.
(describe-bindings (kbd (which-key--current-key-string))))
((functionp which-key--prefix-help-cmd-backup)
(funcall which-key--prefix-help-cmd-backup)))))
;;;###autoload
(defun which-key-show-next-page-no-cycle ()
"Show next page of keys unless on the last page, in which case
call `which-key-show-standard-help'."
(interactive)
(let ((which-key-inhibit t))
(if (which-key--on-last-page)
(which-key-show-standard-help)
(which-key-turn-page 1))))
;;;###autoload
(defun which-key-show-previous-page-no-cycle ()
"Show previous page of keys unless on the first page, in which
case do nothing."
(interactive)
(let ((which-key-inhibit t))
(unless (which-key--on-first-page)
(which-key-turn-page -1))))
;;;###autoload
(defun which-key-show-next-page-cycle (&optional _)
"Show the next page of keys, cycling from end to beginning
after last page."
(interactive)
(let ((which-key-inhibit t))
(which-key-turn-page 1)))
;;;###autoload
(defun which-key-show-previous-page-cycle (&optional _)
"Show the previous page of keys, cycling from beginning to end
after first page."
(interactive)
(let ((which-key-inhibit t))
(which-key-turn-page -1)))
;;;###autoload
(defun which-key-show-top-level (&optional _)
"Show top-level bindings."
(interactive)
(which-key--create-buffer-and-show nil nil nil "Top-level bindings"))
;;;###autoload
(defun which-key-show-major-mode (&optional all)
"Show top-level bindings in the map of the current major mode.
This function will also detect evil bindings made using
`evil-define-key' in this map. These bindings will depend on the
current evil state. "
(interactive "P")
(let ((map-sym (intern (format "%s-map" major-mode))))
(if (and (boundp map-sym) (keymapp (symbol-value map-sym)))
(which-key--show-keymap
"Major-mode bindings"
(symbol-value map-sym)
(apply-partially #'which-key--map-binding-p (symbol-value map-sym))
all)
(message "which-key: No map named %s" map-sym))))
;;;###autoload
(defun which-key-show-full-major-mode ()
"Show all bindings in the map of the current major mode.
This function will also detect evil bindings made using
`evil-define-key' in this map. These bindings will depend on the
current evil state. "
(interactive)
(which-key-show-major-mode t))
;;;###autoload
(defun which-key-dump-bindings (prefix buffer-name)
"Dump bindings from PREFIX into buffer named BUFFER-NAME.
PREFIX should be a string suitable for `kbd'."
(interactive "sPrefix: \nB")
(let* ((buffer (get-buffer-create buffer-name))
(keys (which-key--get-bindings (kbd prefix))))
(with-current-buffer buffer
(point-max)
(save-excursion
(dolist (key keys)
(insert (apply #'format "%s%s%s\n" key)))))
(switch-to-buffer-other-window buffer)))
;;;###autoload
(defun which-key-undo-key (&optional _)
"Undo last keypress and force which-key update."
(interactive)
(let* ((key-lst (butlast (which-key--current-key-list)))
(which-key-inhibit t))
(cond (which-key--prior-show-keymap-args
(if (keymapp (cdr (car-safe which-key--prior-show-keymap-args)))
(let ((args (pop which-key--prior-show-keymap-args)))
(which-key--show-keymap (car args) (cdr args)))
(which-key--hide-popup)))
(key-lst
(which-key-reload-key-sequence key-lst)
(which-key--create-buffer-and-show (apply #'vector key-lst)))
(t (setq which-key--automatic-display nil)
(which-key-show-top-level)))))
(defalias 'which-key-undo #'which-key-undo-key)
(defun which-key-abort (&optional _)
"Abort key sequence."
(interactive)
(let ((which-key-inhibit t))
(which-key--hide-popup-ignore-command)
(keyboard-quit)))
(defun which-key-digit-argument (key)
"Version of `digit-argument' for use in `which-key-C-h-map'."
(interactive)
(let ((last-command-event (string-to-char key)))
(digit-argument key))
(let ((current-prefix-arg prefix-arg))
(which-key-reload-key-sequence)))
(defun which-key-toggle-docstrings (&optional _)
"Toggle the display of docstrings."
(interactive)
(unless (eq which-key-show-docstrings 'docstring-only)
(setq which-key-show-docstrings (null which-key-show-docstrings)))
(which-key-reload-key-sequence)
(which-key--create-buffer-and-show (which-key--current-prefix)))
;;;###autoload
(defun which-key-C-h-dispatch ()
"Dispatch C-h commands by looking up key in
`which-key-C-h-map'. This command is always accessible (from any
prefix) if `which-key-use-C-h-commands' is non nil."
(interactive)
(cond ((and (not (which-key--popup-showing-p))
which-key-show-early-on-C-h)
(let ((current-prefix
(butlast
(listify-key-sequence (which-key--this-command-keys)))))
(which-key-reload-key-sequence current-prefix)
(if which-key-idle-secondary-delay
(which-key--start-timer which-key-idle-secondary-delay t)
(which-key--start-timer 0.05 t))))
((not (which-key--popup-showing-p))
(which-key-show-standard-help))
(t
(if (not (which-key--popup-showing-p))
(which-key-show-standard-help)
(let* ((prefix-keys (which-key--current-key-string))
(full-prefix (which-key--full-prefix prefix-keys current-prefix-arg t))
(prompt (concat (when (string-equal prefix-keys "")
(which-key--propertize
(concat " "
(which-key--pages-prefix-title
which-key--pages-obj))
'face 'which-key-note-face))
full-prefix
(which-key--propertize
(substitute-command-keys
which-key-C-h-map-prompt)
'face 'which-key-note-face)))
(key (let ((key (read-key prompt)))
(if (numberp key)
(string key)
(vector key))))
(cmd (lookup-key which-key-C-h-map key))
(which-key-inhibit t))
(if cmd (funcall cmd key) (which-key-turn-page 0)))))))
;;; Update
(defun which-key--any-match-p (regexps string)
"Non-nil if any of REGEXPS match STRING."
(catch 'match
(dolist (regexp regexps)
(when (string-match-p regexp string)
(throw 'match t)))))
(defun which-key--try-2-side-windows
(bindings prefix-keys prefix-title loc1 loc2 &rest _ignore)
"Try to show BINDINGS (PAGE-N) in LOC1 first.
Only if no bindings fit fallback to LOC2."
(let (pages1)
(let ((which-key-side-window-location loc1)
(which-key--multiple-locations t))
(setq pages1 (which-key--create-pages
bindings prefix-keys prefix-title)))
(if pages1
(progn
(setq which-key--pages-obj pages1)
(let ((which-key-side-window-location loc1)
(which-key--multiple-locations t))
(which-key--show-page))
loc1)
(let ((which-key-side-window-location loc2)
(which-key--multiple-locations t))
(setq which-key--pages-obj
(which-key--create-pages bindings prefix-keys prefix-title))
(which-key--show-page)
loc2))))
(defun which-key--read-keymap ()
"Read keymap symbol from minibuffer."
(intern
(completing-read "Keymap: " obarray
(lambda (m)
(and (boundp m)
(keymapp (symbol-value m))
(not (equal (symbol-value m)
(make-sparse-keymap)))))
t
(let ((sym (symbol-at-point)))
(and (boundp sym)
(keymapp (symbol-value sym))
(symbol-name sym)))
'which-key-keymap-history)))
;;;###autoload
(defun which-key-show-keymap (keymap &optional no-paging)
"Show the top-level bindings in KEYMAP using which-key.
KEYMAP is selected interactively from all available keymaps.
If NO-PAGING is non-nil, which-key will not intercept subsequent
keypresses for the paging functionality."
(interactive (list (which-key--read-keymap)))
(which-key--show-keymap (symbol-name keymap)
(symbol-value keymap)
nil nil no-paging))
;;;###autoload
(defun which-key-show-full-keymap (keymap)
"Show all bindings in KEYMAP using which-key.
KEYMAP is selected interactively from all available keymaps."
(interactive (list (which-key--read-keymap)))
(which-key--show-keymap (symbol-name keymap)
(symbol-value keymap)
nil t))
;;;###autoload
(defun which-key-show-minor-mode-keymap (&optional all)
"Show the top-level bindings in KEYMAP using which-key.
KEYMAP is selected interactively by mode in
`minor-mode-map-alist'."
(interactive)
(let ((mode-sym
(intern
(completing-read
"Minor Mode: "
(mapcar #'car
(cl-remove-if-not
(lambda (entry)
(and (symbol-value (car entry))
(not (equal (cdr entry) (make-sparse-keymap)))))
minor-mode-map-alist))
nil t nil 'which-key-keymap-history))))
(which-key--show-keymap (symbol-name mode-sym)
(cdr (assq mode-sym minor-mode-map-alist))
all)))
;;;###autoload
(defun which-key-show-full-minor-mode-keymap ()
"Show all bindings in KEYMAP using which-key.
KEYMAP is selected interactively by mode in
`minor-mode-map-alist'."
(interactive)
(which-key-show-minor-mode-keymap t))
(defun which-key--show-keymap
(keymap-name keymap &optional prior-args all no-paging filter)
(when prior-args (push prior-args which-key--prior-show-keymap-args))
(let ((bindings (which-key--get-bindings nil keymap filter all)))
(if (= (length bindings) 0)
(message "which-key: No bindings found in %s" keymap-name)
(cond ((listp which-key-side-window-location)
(setq which-key--last-try-2-loc
(apply #'which-key--try-2-side-windows
bindings nil keymap-name
which-key-side-window-location)))
(t (setq which-key--pages-obj
(which-key--create-pages bindings nil keymap-name))
(which-key--show-page)))
(unless no-paging
(let* ((key (read-key))
(key-desc (key-description (list key)))
(next-def (lookup-key keymap (vector key))))
(cond ((and which-key-use-C-h-commands
(numberp key) (= key help-char))
(which-key-C-h-dispatch))
((keymapp next-def)
(which-key--hide-popup-ignore-command)
(which-key--show-keymap
(concat keymap-name " " key-desc)
next-def
(cons keymap-name keymap)))
(t (which-key--hide-popup))))))))
(defun which-key--evil-operator-filter (binding)
(let ((def (intern (cdr binding))))
(and (functionp def)
(not (evil-get-command-property def :suppress-operator)))))
(defun which-key--show-evil-operator-keymap ()
(if which-key--inhibit-next-operator-popup
(setq which-key--inhibit-next-operator-popup nil)
(let ((keymap
(make-composed-keymap (list evil-operator-shortcut-map
evil-operator-state-map
evil-motion-state-map))))
(when (keymapp keymap)
(let ((formatted-keys
(which-key--get-bindings
nil keymap #'which-key--evil-operator-filter)))
(cond ((= (length formatted-keys) 0)
(message "which-key: Keymap empty"))
((listp which-key-side-window-location)
(setq which-key--last-try-2-loc
(apply #'which-key--try-2-side-windows
formatted-keys nil "evil operator/motion keys"
which-key-side-window-location)))
(t (setq which-key--pages-obj
(which-key--create-pages
formatted-keys
nil "evil operator/motion keys"))
(which-key--show-page)))))
(let* ((key (read-key)))
(when (member key '(?f ?F ?t ?T ?`))
;; these keys trigger commands that read the next char manually
(setq which-key--inhibit-next-operator-popup t))
(cond ((and which-key-use-C-h-commands (numberp key) (= key help-char))
(which-key-C-h-dispatch))
((and (numberp key) (= key ?\C-\[))
(which-key--hide-popup)
(keyboard-quit))
(t
(which-key--hide-popup)
(setq unread-command-events (vector key))))))))
(defun which-key--create-buffer-and-show
(&optional prefix-keys from-keymap filter prefix-title)
"Fill `which-key--buffer' with key descriptions and reformat.
Finally, show the buffer."
(let ((start-time (current-time))
(formatted-keys (which-key--get-bindings
prefix-keys from-keymap filter))
(prefix-desc (key-description prefix-keys)))
(cond ((= (length formatted-keys) 0)
(message "%s- which-key: There are no keys to show" prefix-desc))
((listp which-key-side-window-location)
(setq which-key--last-try-2-loc
(apply #'which-key--try-2-side-windows
formatted-keys prefix-keys prefix-title
which-key-side-window-location)))
(t (setq which-key--pages-obj
(which-key--create-pages
formatted-keys prefix-keys prefix-title))
(which-key--show-page)))
(which-key--debug-message
"On prefix \"%s\" which-key took %.0f ms." prefix-desc
(* 1000 (float-time (time-since start-time))))))
(defun which-key--this-command-keys ()
"Version of `this-single-command-keys' corrected for key-chords and god-mode."
(let ((this-command-keys (this-single-command-keys)))
(when (and (vectorp this-command-keys)
(> (length this-command-keys) 0)
(eq (aref this-command-keys 0) 'key-chord)
(bound-and-true-p key-chord-mode))
(setq this-command-keys (this-single-command-raw-keys)))
(when (and which-key--god-mode-support-enabled
(bound-and-true-p god-local-mode)
(eq this-command 'god-mode-self-insert))
(setq this-command-keys (when which-key--god-mode-key-string
(kbd which-key--god-mode-key-string))))
this-command-keys))
(defun which-key--update ()
"Function run by timer to possibly trigger
`which-key--create-buffer-and-show'."
(let ((prefix-keys (which-key--this-command-keys))
delay-time)
(cond ((and (> (length prefix-keys) 0)
(or (keymapp (key-binding prefix-keys))
;; Some keymaps are stored here like iso-transl-ctl-x-8-map
(keymapp (which-key--safe-lookup-key
key-translation-map prefix-keys))
;; just in case someone uses one of these
(keymapp (which-key--safe-lookup-key
function-key-map prefix-keys)))
(not which-key-inhibit)
(or (null which-key-allow-regexps)
(which-key--any-match-p
which-key-allow-regexps (key-description prefix-keys)))
(or (null which-key-inhibit-regexps)
(not
(which-key--any-match-p
which-key-inhibit-regexps (key-description prefix-keys))))
;; Do not display the popup if a command is currently being
;; executed
(or (and which-key-allow-evil-operators
(bound-and-true-p evil-this-operator))
(and which-key--god-mode-support-enabled
(bound-and-true-p god-local-mode)
(eq this-command 'god-mode-self-insert))
(null this-command)))
(when (and (not (equal prefix-keys (which-key--current-prefix)))
(or (null which-key-delay-functions)
(null (setq delay-time
(run-hook-with-args-until-success
'which-key-delay-functions
(key-description prefix-keys)
(length prefix-keys))))
(sit-for delay-time)))
(setq which-key--automatic-display t)
(which-key--create-buffer-and-show prefix-keys)
(when (and which-key-idle-secondary-delay
(not which-key--secondary-timer-active))
(which-key--start-timer which-key-idle-secondary-delay t))))
((and which-key-show-transient-maps
;; Assuming that if this is not true we're in
;; `which-key-show-top-level', which would then be overwritten.
(> (length prefix-keys) 0)
(keymapp overriding-terminal-local-map)
;; basic test for it being a hydra
(not (eq (lookup-key overriding-terminal-local-map "\C-u")
'hydra--universal-argument)))
(which-key--create-buffer-and-show
nil overriding-terminal-local-map))
((and which-key-show-operator-state-maps
(bound-and-true-p evil-state)
(eq evil-state 'operator)
(not (which-key--popup-showing-p)))
(which-key--show-evil-operator-keymap))
(which-key--automatic-display
(which-key--hide-popup)))))
;;; Timers
(defun which-key--start-timer (&optional delay secondary)
"Activate idle timer to trigger `which-key--update'."
(which-key--stop-timer)
(setq which-key--secondary-timer-active secondary)
(setq which-key--timer
(run-with-idle-timer (or delay which-key-idle-delay)
t #'which-key--update)))
(defun which-key--stop-timer ()
"Deactivate idle timer for `which-key--update'."
(when which-key--timer (cancel-timer which-key--timer)))
(defun which-key--start-paging-timer ()
"Activate timer to restart which-key after paging."
(when which-key--paging-timer (cancel-timer which-key--paging-timer))
(which-key--stop-timer)
(setq which-key--paging-timer
(run-with-idle-timer
0.2 t (lambda ()
(when (or (not (member real-last-command
which-key--paging-functions))
(and (< 0 (length (this-single-command-keys)))
(not (equal (which-key--current-prefix)
(which-key--this-command-keys)))))
(cancel-timer which-key--paging-timer)
(if which-key-idle-secondary-delay
;; we haven't executed a command yet so the secandary
;; timer is more relevant here
(which-key--start-timer which-key-idle-secondary-delay t)
(which-key--start-timer)))))))
(provide 'which-key)
;;; which-key.el ends here
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