485 lines
17 KiB
EmacsLisp
485 lines
17 KiB
EmacsLisp
;;; winum.el --- Window numbers: navigate windows and frames using numbers.
|
|
;;
|
|
;; Copyright (c) 2006-2015 Nikolaj Schumacher
|
|
;; Copyright (c) 2016 Thomas Chauvot de Beauchêne
|
|
;;
|
|
;; 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/>.
|
|
;;
|
|
;; Author: Thomas de Beauchêne <thomas.de.beauchene@gmail.com>
|
|
;; Version: 1.0
|
|
;; Keywords: convenience, frames, windows, multi-screen
|
|
;; URL: http://github.com/deb0ch/winum.el
|
|
;; Created: 2016
|
|
;; Compatibility: GNU Emacs 24.x
|
|
;; Package-requires: ((cl-lib "0.5"))
|
|
;;
|
|
;; This file is NOT part of GNU Emacs.
|
|
;;
|
|
;;; Commentary:
|
|
;;
|
|
;; Window numbers for Emacs: Navigate your windows and frames using numbers.
|
|
;;
|
|
;; This package is an extended and actively maintained version of the
|
|
;; https://github.com/nschum/window-numbering.el package by Nikolaj Schumacher,
|
|
;; with some ideas and code taken from https://github.com/abo-abo/ace-window.
|
|
;;
|
|
;;; Code:
|
|
;;
|
|
;; FIXME: Error during redisplay: (eval (winum-get-number-string)) signaled
|
|
;; (wrong-type-argument numberp nil) when opening a helm buffer.
|
|
;;
|
|
|
|
(eval-when-compile (require 'cl-lib))
|
|
|
|
;; Configuration variables -----------------------------------------------------
|
|
|
|
(defgroup winum nil
|
|
"Navigate and manage windows using numbers."
|
|
:group 'convenience)
|
|
|
|
(defcustom winum-scope 'global
|
|
"Frames affected by a number set."
|
|
;; FIXME: when changed from frame-local to non-local in customize, need to
|
|
;; force update or `winum-get-number' fails and messes the
|
|
;; modeline until next update.
|
|
:group 'winum
|
|
:type '(choice
|
|
(const :tag "frame local" frame-local)
|
|
(const :tag "visible frames" visible)
|
|
(const :tag "global" global)))
|
|
|
|
(defcustom winum-reverse-frame-list nil
|
|
"If t, order frames by reverse order of creation.
|
|
Has effect only when `winum-scope' is not 'frame-local."
|
|
:group 'winum
|
|
:type 'boolean)
|
|
|
|
(defcustom winum-auto-assign-0-to-minibuffer t
|
|
"If non-nil, `winum-mode' assigns 0 to the minibuffer when active."
|
|
:group 'winum
|
|
:type 'boolean)
|
|
|
|
(defcustom winum-assign-func nil
|
|
"Function called for each window by `winum-mode'.
|
|
This is called before automatic assignment begins. The function should
|
|
return a number to have it assigned to the current-window, nil otherwise.
|
|
This function along with `winum-auto-assign-0-to-minibuffer' are the only
|
|
ways to have 0 assigned to a window."
|
|
:group 'winum
|
|
:type 'function)
|
|
|
|
(defcustom winum-auto-setup-mode-line t
|
|
"When nil, `winum-mode' will not display window numbers in the mode-line.
|
|
You might want this to be nil if you use a package that already manages window
|
|
numbers in the mode-line.")
|
|
|
|
(defcustom winum-mode-line-position 1
|
|
"The position in the mode-line `winum-mode' displays the number."
|
|
:group 'winum
|
|
:type 'integer)
|
|
|
|
(defcustom winum-ignored-buffers '(" *which-key*")
|
|
"List of buffers to ignore when selecting window."
|
|
:group 'winum
|
|
:type '(repeat string))
|
|
|
|
(defface winum-face '()
|
|
"Face used for the number in the mode-line."
|
|
:group 'winum)
|
|
|
|
(defcustom winum-keymap-prefix (kbd "C-x w")
|
|
"Prefix key sequence for keybindings."
|
|
:group 'winum
|
|
:type 'string)
|
|
|
|
(defvar winum-keymap
|
|
(let ((map (make-sparse-keymap)))
|
|
(let ((prefix-map (make-sparse-keymap)))
|
|
(define-key prefix-map (kbd "`") 'winum-select-window-by-number)
|
|
(define-key prefix-map (kbd "0") 'winum-select-window-0-or-10)
|
|
(define-key prefix-map (kbd "1") 'winum-select-window-1)
|
|
(define-key prefix-map (kbd "2") 'winum-select-window-2)
|
|
(define-key prefix-map (kbd "3") 'winum-select-window-3)
|
|
(define-key prefix-map (kbd "4") 'winum-select-window-4)
|
|
(define-key prefix-map (kbd "5") 'winum-select-window-5)
|
|
(define-key prefix-map (kbd "6") 'winum-select-window-6)
|
|
(define-key prefix-map (kbd "7") 'winum-select-window-7)
|
|
(define-key prefix-map (kbd "8") 'winum-select-window-8)
|
|
(define-key prefix-map (kbd "9") 'winum-select-window-9)
|
|
(define-key map winum-keymap-prefix prefix-map))
|
|
map)
|
|
"Keymap used for `winum-mode'.")
|
|
|
|
;; Internal variables ----------------------------------------------------------
|
|
|
|
(defvar winum--max-frames 16
|
|
"Maximum number of frames that can be numbered.")
|
|
|
|
(defvar winum--window-count nil
|
|
"Current count of windows to be numbered.")
|
|
|
|
(defvar winum--remaining nil
|
|
"A list of window numbers to assign.")
|
|
|
|
(defvar winum--window-vector nil
|
|
"Vector of windows indexed by their number.
|
|
Used internally by winum to get a window provided a number.")
|
|
|
|
(defvar winum--numbers-table nil
|
|
"Hash table of numbers indexed by their window.
|
|
Used internally by winum to get a number provided a window.")
|
|
|
|
(defvar winum--frames-table nil
|
|
"Table linking windows to numbers and numbers to windows for each frame.
|
|
|
|
Used only when `winum-scope' is 'frame-local to keep track of
|
|
separate window numbers sets in every frame.
|
|
|
|
It is a hash table using Emacs frames as keys and cons of the form
|
|
\(`winum--window-vector' . `winum--numbers-table')
|
|
as values.
|
|
|
|
To get a window given a number, use the `car' of a value.
|
|
To get a number given a window, use the `cdr' of a value.
|
|
|
|
Such a structure allows for per-frame bidirectional fast access.")
|
|
|
|
;; Interactive functions -------------------------------------------------------
|
|
|
|
;;;###autoload
|
|
(define-minor-mode winum-mode
|
|
"A minor mode that allows for managing windows based on window numbers."
|
|
nil
|
|
nil
|
|
winum-keymap
|
|
:global t
|
|
(if winum-mode
|
|
(winum--init)
|
|
(winum--deinit)))
|
|
|
|
;;;###autoload
|
|
(defun winum-select-window-0-or-10 (&optional arg)
|
|
"Jump to window 0 if assigned or 10 if exists.
|
|
If prefix ARG is given, delete the window instead of selecting it."
|
|
(interactive "P")
|
|
(let ((n (if (winum-get-window-by-number 0)
|
|
(if arg '- 0)
|
|
(if arg -10 10))))
|
|
(winum-select-window-by-number n)))
|
|
|
|
;;;###autoload
|
|
(defun winum-select-window-0 (&optional arg)
|
|
"Jump to window 0.
|
|
If prefix ARG is given, delete the window instead of selecting it."
|
|
(interactive "P")
|
|
(winum-select-window-by-number (if arg '- 0)))
|
|
|
|
;;;###autoload
|
|
(defun winum-select-window-1 (&optional arg)
|
|
"Jump to window 1.
|
|
If prefix ARG is given, delete the window instead of selecting it."
|
|
(interactive "P")
|
|
(winum-select-window-by-number (if arg -1 1)))
|
|
|
|
;;;###autoload
|
|
(defun winum-select-window-2 (&optional arg)
|
|
"Jump to window 2.
|
|
If prefix ARG is given, delete the window instead of selecting it."
|
|
(interactive "P")
|
|
(winum-select-window-by-number (if arg -2 2)))
|
|
|
|
;;;###autoload
|
|
(defun winum-select-window-3 (&optional arg)
|
|
"Jump to window 3.
|
|
If prefix ARG is given, delete the window instead of selecting it."
|
|
(interactive "P")
|
|
(winum-select-window-by-number (if arg -3 3)))
|
|
|
|
;;;###autoload
|
|
(defun winum-select-window-4 (&optional arg)
|
|
"Jump to window 4.
|
|
If prefix ARG is given, delete the window instead of selecting it."
|
|
(interactive "P")
|
|
(winum-select-window-by-number (if arg -4 4)))
|
|
|
|
;;;###autoload
|
|
(defun winum-select-window-5 (&optional arg)
|
|
"Jump to window 5.
|
|
If prefix ARG is given, delete the window instead of selecting it."
|
|
(interactive "P")
|
|
(winum-select-window-by-number (if arg -5 5)))
|
|
|
|
;;;###autoload
|
|
(defun winum-select-window-6 (&optional arg)
|
|
"Jump to window 6.
|
|
If prefix ARG is given, delete the window instead of selecting it."
|
|
(interactive "P")
|
|
(winum-select-window-by-number (if arg -6 6)))
|
|
|
|
;;;###autoload
|
|
(defun winum-select-window-7 (&optional arg)
|
|
"Jump to window 7.
|
|
If prefix ARG is given, delete the window instead of selecting it."
|
|
(interactive "P")
|
|
(winum-select-window-by-number (if arg -7 7)))
|
|
|
|
;;;###autoload
|
|
(defun winum-select-window-8 (&optional arg)
|
|
"Jump to window 8.
|
|
If prefix ARG is given, delete the window instead of selecting it."
|
|
(interactive "P")
|
|
(winum-select-window-by-number (if arg -8 8)))
|
|
|
|
;;;###autoload
|
|
(defun winum-select-window-9 (&optional arg)
|
|
"Jump to window 9.
|
|
If prefix ARG is given, delete the window instead of selecting it."
|
|
(interactive "P")
|
|
(winum-select-window-by-number (if arg -9 9)))
|
|
|
|
;;;###autoload
|
|
(defun winum-select-window-by-number (&optional arg)
|
|
"Select or delete window which number is specified by ARG.
|
|
If the number is negative, delete the window instead of selecting it.
|
|
There are several ways to provide the number:
|
|
- if called from elisp with an argument, use it.
|
|
- if called interactively with a numeric prefix argument, use it.
|
|
- if prefix argument is the negative argument, delete window 0.
|
|
- if prefix argument is the default prefix argument, delete current window.
|
|
- if called interactively and no valid argument is provided, read from
|
|
minibuffer."
|
|
(interactive "P")
|
|
(let* ((n (cond
|
|
((integerp arg) arg)
|
|
((eq arg '-) 0) ; negative-argument
|
|
(arg (winum-get-number))
|
|
((called-interactively-p 'any)
|
|
(let ((user-input-str (read-from-minibuffer "Window: ")))
|
|
(if (not (string-match-p "[+-]?[0-9]+\.*" user-input-str))
|
|
(winum-get-number)
|
|
(string-to-number user-input-str))))
|
|
(t (winum-get-number))))
|
|
(w (winum-get-window-by-number (abs n)))
|
|
(delete (and arg
|
|
(or (not (integerp arg))
|
|
(> 0 n)))))
|
|
(if w
|
|
(if delete
|
|
(delete-window w)
|
|
(winum--switch-to-window w))
|
|
(error "No window numbered %d" n))))
|
|
|
|
;; Public API ------------------------------------------------------------------
|
|
|
|
;;;###autoload
|
|
(defun winum-get-window-by-number (n)
|
|
"Return window numbered N if exists, nil otherwise."
|
|
(let ((windows (if (eq winum-scope 'frame-local)
|
|
(car (gethash (selected-frame) winum--frames-table))
|
|
winum--window-vector))
|
|
window)
|
|
(if (and (>= n 0) (< n (1+ winum--window-count))
|
|
(setq window (aref windows n)))
|
|
window
|
|
nil)))
|
|
|
|
;;;###autoload
|
|
(defun winum-get-number-string (&optional window)
|
|
"Get the current or specified window's current number as a propertized string.
|
|
WINDOW: if specified, the window of which we want to know the number.
|
|
If not specified, the number of the currently selected window is
|
|
returned."
|
|
(let ((s (int-to-string (winum-get-number window))))
|
|
(propertize s 'face 'winum-face)))
|
|
|
|
;;;###autoload
|
|
(defun winum-get-number (&optional window)
|
|
"Get the current or specified window's current number.
|
|
WINDOW: if specified, the window of which we want to know the number.
|
|
If not specified, the number of the currently selected window is
|
|
returned."
|
|
(let ((w (or window (selected-window))))
|
|
(if (eq winum-scope 'frame-local)
|
|
(gethash w (cdr (gethash (selected-frame) winum--frames-table)))
|
|
(gethash w winum--numbers-table))))
|
|
|
|
;; Internal functions ----------------------------------------------------------
|
|
|
|
(defun winum--init ()
|
|
"Initialize winum-mode."
|
|
(setq winum--window-count (length (winum--window-list)))
|
|
(if (eq winum-scope 'frame-local)
|
|
(setq winum--frames-table (make-hash-table :size winum--max-frames))
|
|
(setq winum--numbers-table (make-hash-table :size winum--window-count)))
|
|
(when winum-auto-setup-mode-line
|
|
(winum--install-mode-line))
|
|
(add-hook 'minibuffer-setup-hook 'winum--update)
|
|
(add-hook 'window-configuration-change-hook 'winum--update)
|
|
(dolist (frame (frame-list))
|
|
(select-frame frame)
|
|
(winum--update)))
|
|
|
|
(defun winum--deinit ()
|
|
"Actions performed when turning off winum-mode."
|
|
(when winum-auto-setup-mode-line
|
|
(winum--clear-mode-line))
|
|
(remove-hook 'minibuffer-setup-hook 'winum--update)
|
|
(remove-hook 'window-configuration-change-hook 'winum--update)
|
|
(setq winum--frames-table nil))
|
|
|
|
(defun winum--install-mode-line (&optional position)
|
|
"Install the window number from `winum-mode' to the mode-line.
|
|
POSITION: position in the mode-line."
|
|
(let ((mode-line (default-value 'mode-line-format))
|
|
(res))
|
|
(dotimes (i (min (or position winum-mode-line-position 1)
|
|
(length mode-line)))
|
|
(push (pop mode-line) res))
|
|
(push '(:eval (winum-get-number-string)) res)
|
|
(while mode-line
|
|
(push (pop mode-line) res))
|
|
(setq-default mode-line-format (nreverse res)))
|
|
(force-mode-line-update t))
|
|
|
|
(defun winum--clear-mode-line ()
|
|
"Remove the window number of `winum-mode' from the mode-line."
|
|
(let ((mode-line (default-value 'mode-line-format))
|
|
(res))
|
|
(while mode-line
|
|
(let ((item (car mode-line)))
|
|
(unless (equal item '(:eval (winum-get-number-string)))
|
|
(push item res)))
|
|
(pop mode-line))
|
|
(setq-default mode-line-format (nreverse res)))
|
|
(force-mode-line-update t))
|
|
|
|
(defun winum--update ()
|
|
"Update window numbers."
|
|
(let ((windows (winum--window-list)))
|
|
(setq winum--window-count (length windows)
|
|
winum--remaining (winum--available-numbers))
|
|
(if (eq winum-scope 'frame-local)
|
|
(puthash (selected-frame)
|
|
(cons (make-vector (1+ winum--window-count) nil)
|
|
(make-hash-table :size winum--window-count))
|
|
winum--frames-table)
|
|
(setq winum--window-vector (make-vector (1+ winum--window-count) nil))
|
|
(clrhash winum--numbers-table))
|
|
(when winum-assign-func
|
|
(mapc (lambda (w)
|
|
(with-selected-window w
|
|
(with-current-buffer (window-buffer w)
|
|
(let ((num (funcall winum-assign-func)))
|
|
(when num
|
|
(winum--assign w num))))))
|
|
windows))
|
|
(when (and winum-auto-assign-0-to-minibuffer
|
|
(active-minibuffer-window)
|
|
(not (winum-get-window-by-number 0)))
|
|
(winum--assign (active-minibuffer-window) 0))
|
|
(dolist (w windows)
|
|
(winum--assign w))))
|
|
|
|
(defun winum--assign (window &optional number)
|
|
"Assign to window WINDOW the number NUMBER.
|
|
If NUMBER is not specified, determine it first based on
|
|
`winum--remaining'.
|
|
Returns the assigned number, or nil on error."
|
|
(if number
|
|
(if (aref (winum--get-window-vector) number)
|
|
(progn (message "Number %s already assigned to %s, can't assign to %s"
|
|
number (aref winum--window-vector number) window)
|
|
nil)
|
|
(setf (aref (winum--get-window-vector) number) window)
|
|
(puthash window number (winum--get-numbers-table))
|
|
(setq winum--remaining (delq number winum--remaining))
|
|
number)
|
|
;; else determine number and assign
|
|
(when winum--remaining
|
|
(unless (gethash window (winum--get-numbers-table))
|
|
(let ((number (car winum--remaining)))
|
|
(winum--assign window number))))))
|
|
|
|
(defun winum--window-list ()
|
|
"Return a list of interesting windows."
|
|
(cl-remove-if
|
|
(lambda (w)
|
|
(let ((f (window-frame w)))
|
|
(or (not (and (frame-live-p f)
|
|
(frame-visible-p f)))
|
|
(string= "initial_terminal" (terminal-name f))
|
|
(member (buffer-name (window-buffer w)) winum-ignored-buffers))))
|
|
(cl-case winum-scope
|
|
(global
|
|
(cl-mapcan 'winum--list-windows-in-frame
|
|
(if winum-reverse-frame-list
|
|
(frame-list)
|
|
(nreverse (frame-list)))))
|
|
(visible
|
|
(cl-mapcan 'winum--list-windows-in-frame
|
|
(if winum-reverse-frame-list
|
|
(visible-frame-list)
|
|
(nreverse (visible-frame-list)))))
|
|
(frame-local
|
|
(winum--list-windows-in-frame))
|
|
(t
|
|
(error "Invalid `winum-scope': %S" winum-scope)))))
|
|
|
|
(defun winum--list-windows-in-frame (&optional f)
|
|
"List windows in frame F using natural Emacs ordering."
|
|
(window-list f 0 (frame-first-window f)))
|
|
|
|
(defun winum--get-window-vector ()
|
|
"Return the window vector used to get a window given a number.
|
|
This vector is not stored the same way depending on the value of
|
|
`winum-scope'."
|
|
(if (eq winum-scope 'frame-local)
|
|
(car (gethash (selected-frame) winum--frames-table))
|
|
winum--window-vector))
|
|
|
|
(defun winum--get-numbers-table ()
|
|
"Return the numbers hashtable used to get a number given a window.
|
|
This hashtable is not stored the same way depending on the value of
|
|
`winum-scope'"
|
|
(if (eq winum-scope 'frame-local)
|
|
(cdr (gethash (selected-frame) winum--frames-table))
|
|
winum--numbers-table))
|
|
|
|
(defun winum--available-numbers ()
|
|
"Return a list of numbers from 1 to `winum--window-count'.
|
|
0 is is not part of the list as its assignment is either manual
|
|
using the `winum-assign-func', or using `winum-auto-assign-0-to-minibuffer'."
|
|
(let ((numbers))
|
|
(dotimes (i winum--window-count)
|
|
(push (1+ i) numbers))
|
|
(nreverse numbers)))
|
|
|
|
(defun winum--switch-to-window (window)
|
|
"Switch to the window WINDOW and switch input focus if on a different frame."
|
|
(let ((frame (window-frame window)))
|
|
(when (and (frame-live-p frame)
|
|
(not (eq frame (selected-frame))))
|
|
(select-frame-set-input-focus frame))
|
|
(if (window-live-p window)
|
|
(select-window window)
|
|
(error "Got a dead window %S" window))))
|
|
|
|
(push "^No window numbered .$" debug-ignored-errors)
|
|
(push "^Got a dead window .$" debug-ignored-errors)
|
|
(push "^Invalid `winum-scope': .$" debug-ignored-errors)
|
|
|
|
(provide 'winum)
|
|
|
|
;;; winum.el ends here
|