Sacha Chua writes:
> Summary: A most-recently-used window switcher
> Requires: emacs-25.1, compat-29.1.4.1
> Website: https://sr.ht/~tsdh/switchy-window/
> Keywords: windows
> Maintainer: Tassilo Horn
> Author: Tassilo Horn
>
> # switchy-window.el: A most-recently-used window switcher for Emacs
>
> `switchy-window.el` is a most-recently-used window switcher. It suits my
> personal Emacs layout and workflow where I usually have at most two editing
> windows but up to three side-windows which I have to select only seldomly.
>
> The idea of `switchy-window.el` is simple: when you invoke `switchy-window` in
> quick succession, it will switch to one window after the other in
> most-recently-used order. Once you stop switching for long enough time
> (`switchy-window-delay`, 1.5 seconds by default), the selected window gets
> locked in, i.e., its LRU timestamp is updated and this switching sequence is
> ended. Thusly, you can toggle between two windows simply by invoking
> `switchy-window`, waiting at least `switchy-window-delay`, and then invoking
> `switchy-window` again to switch back to the original window.
>
>
> ## Usage
>
> Activate `switchy-window-minor-mode` which tracks window changes and bind
> `switchy-window` to a key of your liking in `switchy-window-minor-mode-map` or
> globally. Here are is a sample configuration:
>
> ```elisp
> (switchy-window-minor-mode)
>
> ;; That's what I use.
> (keymap-set switchy-window-minor-mode-map "C-<" #'switchy-window)
>
> ;; Or as a substitute for `other-window'.
> (add-hook 'switchy-window-minor-mode-hook
> (lambda ()
> (if switchy-window-minor-mode
> (keymap-global-set "<remap> <other-window>"
> #'switchy-window)
> (keymap-global-unset "<remap> <other-window>"))))
> ```
>
>
> **Hint**: Since the order of window switching is not as obvious as it is with
> `other-window`, adding a bit visual feedback to window selection changes can
> be
> helpful. That can be done easily with the stock Emacs `pulse.el`, e.g.:
>
> ```elisp
> (add-hook 'window-selection-change-functions
> (lambda (frame)
> (when (eq frame (selected-frame))
> (pulse-momentary-highlight-one-line))))
> ```
>
>
> ## Installation
>
> `switchy-window.el` is available as [GNU ELPA
> package](https://elpa.nongnu.org/nongnu/switchy-window.html) so that you can
> install it simply from `M-x list-packages RET` or using `use-package` like so:
>
> ```elisp
> (use-package switchy-window
> :ensure t
> :custom (switchy-window-delay 1.5) ;; That's the default value.
> :bind (:map switchy-window-minor-mode-map
> ("C-<" . switchy-window))
> :init
> (switchy-window-minor-mode))
> ```
>
> ## Questions & Patches
>
> For asking questions, sending feedback, or patches, refer to [my public inbox
> (mailinglist)](https://lists.sr.ht/~tsdh/public-inbox). Please mention the
> project you are referring to in the subject.
>
> ## Bugs
>
> Bugs and requests can be reported
> [here](https://todo.sr.ht/~tsdh/switchy-window).
>
> ## License
>
> `switchy-window.el` is licensed under the
> [GPLv3](https://www.gnu.org/licenses/gpl-3.0.en.html) (or later).
What I use, FWIW:
--8<---------------cut here---------------start------------->8---
(add-hook
'buffer-list-update-hook
(lambda nil
(when
(or (eq this-command 'get-mru-window-by-other-than-other-window)
(and (or
(eq this-command 'other-window)
(eq this-command 'other-window-backward))
(not (or (eq last-repeatable-command 'other-window)
(eq last-repeatable-command 'other-window-backward)))))
(setq last-window (get-mru-window nil nil t))))
-100)
(defun get-mru-window-by-other-than-other-window nil
(interactive) (select-window last-window))
(global-set-key (kbd "C-<backspace>"
#'get-mru-window-by-other-than-other-window))
--8<---------------cut here---------------end--------------->8---
Uses my customization in bug#78803 (and is thus also a thinly disguised
ad for it :-)).
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