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Bind to zn/zN to new narrow/widen (indirect) commands

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Henrik Lissner 2019-09-13 00:26:25 -04:00
parent a217b0132e
commit 5e6c2205b8
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GPG key ID: 5F6C0EA160557395
2 changed files with 35 additions and 25 deletions
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58
core/autoload/ui.el
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@ -169,35 +169,43 @@ OPACITY is an integer between 0 to 100, inclusive."
100)))) 100))))
(set-frame-parameter nil 'alpha opacity)) (set-frame-parameter nil 'alpha opacity))
(defvar-local doom--buffer-narrowed-origin nil)
(defvar-local doom--buffer-narrowed-window-start nil)
;;;###autoload ;;;###autoload
(defun doom/clone-and-narrow-buffer (beg end &optional clone-p) (defun doom/narrow-buffer-indirectly (beg end &optional clone-p)
"Restrict editing in this buffer to the current region, indirectly. With CLONE-P, "Restrict editing in this buffer to the current region, indirectly.
clone the buffer and hard-narrow the selection. If mark isn't active, then widen
the buffer (if narrowed). This creates an indirect clone of the buffer, so that the narrowing doesn't
affect other windows displaying the same buffer. Call
`doom/widen-indirectly-narrowed-buffer' to undo it.
Inspired from http://demonastery.org/2013/04/emacs-evil-narrow-region/" Inspired from http://demonastery.org/2013/04/emacs-evil-narrow-region/"
(interactive (interactive
(list (or (bound-and-true-p evil-visual-beginning) (region-beginning)) (list (or (bound-and-true-p evil-visual-beginning) (region-beginning))
(or (bound-and-true-p evil-visual-end) (region-end)) (or (bound-and-true-p evil-visual-end) (region-end))
current-prefix-arg)) current-prefix-arg))
(cond ((or (region-active-p) (unless (region-active-p)
(not (buffer-narrowed-p))) (setq beg (line-beginning-position)
(unless (region-active-p) end (line-end-position)))
(setq beg (line-beginning-position) (deactivate-mark)
end (line-end-position))) (with-current-buffer (switch-to-buffer (clone-indirect-buffer nil nil))
(setq deactivate-mark t) (narrow-to-region beg end)))
(when clone-p
(let ((old-buf (current-buffer))) ;;;###autoload
(switch-to-buffer (clone-indirect-buffer nil nil)) (defun doom/widen-indirectly-narrowed-buffer (&optional dontkill)
(setq doom--buffer-narrowed-origin old-buf))) "Widens narrowed indirect buffer, created with
(setq doom--buffer-narrowed-window-start (window-start))
(narrow-to-region beg end)) Mainly used for indirectly narrowed buffers created by
(doom--buffer-narrowed-origin `doom/narrow-buffer-indirectly', but will work with `narrow-to-region' and
(kill-current-buffer) others."
(switch-to-buffer doom--buffer-narrowed-origin) (interactive "P")
(setq doom--buffer-narrowed-origin nil)) (unless (buffer-narrowed-p)
(t (user-error "Buffer isn't narrowed"))
(widen) (let ((buffers (list (current-buffer)))
(set-window-start nil doom--buffer-narrowed-window-start)))) buffer)
(while (setq buffer (buffer-base-buffer buffer))
(when (buffer-live-p buffer)
(push buffer buffers)))
(when buffers
(switch-to-buffer (car buffers))
(unless dontkill
(mapc #'kill-buffer (cdr buffers))))
(widen)))

2
modules/config/default/+evil-bindings.el
View file

@ -116,6 +116,8 @@
:v "g+" #'evil-numbers/inc-at-pt :v "g+" #'evil-numbers/inc-at-pt
;; custom evil keybinds ;; custom evil keybinds
:n "zn" #'doom/narrow-buffer-indirectly
:n "zN" #'doom/widen-indirectly-narrowed-buffer
:n "zx" #'kill-current-buffer :n "zx" #'kill-current-buffer
:n "ZX" #'bury-buffer :n "ZX" #'bury-buffer
;; repeat in visual mode (FIXME buggy) ;; repeat in visual mode (FIXME buggy)