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core/autoload/buffers: rewrite switch-to-{next,prev} real buffer behavior

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This commit is contained in:
Henrik Lissner 2017-02-24 03:11:28 -05:00
parent 2cb115ebb7
commit 585a559422
1 changed files with 21 additions and 30 deletions
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51
core/autoload/buffers.el
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@ -94,36 +94,27 @@ match the regex PATTERN."
(or buffer-list (doom-buffer-list))))
(defun doom--cycle-real-buffers (&optional n)
"Switch to the next buffer N times (previous, if N < 0), skipping over special
and unreal buffers. If there's nothing left, create a scratch buffer.
See `doom-real-buffer-p' for what 'real' means."
(let* ((start-buffer (current-buffer))
(move-func (if (> n 0) 'switch-to-next-buffer 'switch-to-prev-buffer))
(max 25)
(i 0)
(project-dir (doom-project-root))
(buffers (doom-real-buffers-list))
destbuf)
(setq destbuf
(catch 'goto
(if (or (not buffers)
(= (length buffers) 1))
(throw 'goto t)
(funcall move-func)
(while (not (memq (current-buffer) buffers))
(if (or (eq (current-buffer) start-buffer)
(>= i max))
(throw 'goto t)
(funcall move-func))
(cl-incf i))
(current-buffer))))
(when (eq destbuf t)
(setq destbuf (doom-fallback-buffer)))
(prog1
(switch-to-buffer destbuf)
(when (eq destbuf (doom-fallback-buffer))
(cd project-dir)))))
"Switch to the next buffer N times (previous, if N < 0), skipping over unreal
buffers. If there's nothing left, switch to `doom-fallback-buffer'. See
`doom-real-buffer-p' for what 'real' means."
(let ((buffers (delq (current-buffer) (doom-real-buffers-list)))
(project-dir (doom-project-root)))
(cond ((or (not buffers)
(zerop (mod n (1+ (length buffers)))))
(set-window-buffer nil (doom-fallback-buffer)))
((= (length buffers) 1)
(set-window-buffer nil (car buffers)))
(t
(let ((move-func (if (> n 0) 'switch-to-next-buffer 'switch-to-prev-buffer)))
;; Why this instead of switching straight to the Nth buffer in
;; BUFFERS? Because `switch-to-next-buffer' and
;; `switch-to-prev-buffer' properly update buffer list order.
(while (not (memq (current-buffer) buffers))
(dotimes (i (abs n))
(funcall move-func))))))
(when (eq (current-buffer) (doom-fallback-buffer))
(cd project-dir))
(current-buffer)))
;;;###autoload
(defun doom-real-buffer-p (&optional buffer-or-name)