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;;; common.el --- Some common functions -*- lexical-binding: t; -*-
;;;###autoload
(defun center-string-in-width (str width)
"Add spaces to STR so that it is centered in a box which is WIDTH wide."
(let ((len (length str)))
(cond
((> len width)
(error "String %s longer than %d" str width))
(t (format "%s%s"
(make-string (round (- width len) 2)
32)
str)))))
;;; jump between the completions buffer and the minibuffer
;;;###autoload
(defvar durand-completion-buffer-names (list "Completions"
"Embark Collect"
"comb")
"The list of names that match the names of \"completion buffers\".")
;;;###autoload
(defun durand-focus-completion-or-minibuffer (&optional arg)
"Jump between the completions buffer and the minibuffer."
(interactive "P")
(let* ((completion-windows
(delq nil
(mapcar
(lambda (w)
(and (consp
(delq nil
(mapcar (lambda (name)
(string-match-p
name
(buffer-name (window-buffer w))))
durand-completion-buffer-names)))
w))
(window-list nil 'nomini))))
(in-completion-p (consp
(delq nil
(mapcar
(lambda (name)
(string-match-p name (buffer-name)))
durand-completion-buffer-names))))
(minibuffer-active-p (active-minibuffer-window))
(in-minibuffer-p (minibuffer-window-active-p (selected-window))))
(cond
((and minibuffer-active-p
(not in-minibuffer-p))
(select-window (active-minibuffer-window)))
((and (consp completion-windows)
(not in-completion-p))
(select-window (car completion-windows)))
(t
(other-window 1)))))
;;;###autoload
(defun durand-embark-scroll-down-or-go-to-completions (&optional arg)
"Scroll down; if this is not feasible, go to the completions buffer.
ARG means do this command ARG times."
(interactive "p")
(let ((original-point (point))
(left (abs (forward-line arg)))
(completion-windows
(delq nil
(mapcar
(lambda (w)
(and (consp
(delq nil
(mapcar (lambda (name)
(string-match-p
name
(buffer-name (window-buffer w))))
durand-completion-buffer-names)))
w))
(window-list nil 'nomini))))
(in-completion-p (consp
(delq nil
(mapcar
(lambda (name)
(string-match-p name (buffer-name)))
durand-completion-buffer-names)))))
(cond ((= (point) (point-max))
(setq left (1+ left)))
((get-text-property (point) 'field)
(goto-char original-point)))
(cond ((and (> left 0)
(consp completion-windows)
(not in-completion-p))
(select-window (car completion-windows))
(cond
((> arg 0)
(goto-char (point-min))
(cond
((derived-mode-p 'completion-list-mode)
(next-completion 1))))
((< arg 0)
(goto-char (point-max))
(cond
((derived-mode-p 'completion-list-mode)
(next-completion -1)))))))))
;;;###autoload
(defun durand-embark-scroll-up-or-go-to-completions (&optional arg)
"Scroll up; if this is not feasible, go to the completions buffer.
ARG means do this command ARG times."
(interactive "p")
(durand-embark-scroll-down-or-go-to-completions (- arg)))
;;;###autoload
(defun durand-completion-scroll-down-or-go-to-minibuffer (&optional arg)
"Scroll down; if this is not feasible, go to the mini-buffer.
ARG means do this command ARG times."
(interactive "p")
(let ((original-point (point))
(left (abs (forward-line arg)))
(minibuffer-active-p (active-minibuffer-window))
(in-minibuffer-p (minibuffer-window-active-p (selected-window))))
(cond ((= (point) (point-max))
(setq left (1+ left)))
((get-text-property (point) 'field)
(goto-char original-point)))
(cond ((and (> left 0)
minibuffer-active-p
(not in-minibuffer-p))
(select-window (active-minibuffer-window))
(cond
((> arg 0)
(goto-char (point-min)))
((< arg 0)
(goto-char (point-max))))))))
;;;###autoload
(defun durand-display-in-one-window (buffer _alist)
"Display BUFFER in one window.
ALIST is an association list of action symbols and values. See
Info node `(elisp) Buffer Display Action Alists' for details of
such alists.
This function pops up a new window and then deletes all other
windows. And ALIST is completely ignored."
(let ((window (split-window (frame-root-window (selected-frame)))))
(set-window-buffer window buffer)
(select-window window)
(delete-other-windows)
window))
;;;###autoload
(defun durand-completion-scroll-up-or-go-to-minibuffer (&optional arg)
"Scroll up; if this is not feasible, go to the mini-buffer.
ARG means do this command ARG times."
(interactive "p")
(durand-completion-scroll-down-or-go-to-minibuffer (- arg)))
;;; Don't ask me if I want to visit the file again.
(require 'register)
;;;###autoload
(cl-defmethod register-val-jump-to ((val cons) delete)
(cond
((frame-configuration-p (car val))
(set-frame-configuration (car val) (not delete))
(goto-char (cadr val)))
((window-configuration-p (car val))
(set-window-configuration (car val))
(goto-char (cadr val)))
((eq (car val) 'file)
(find-file (cdr val)))
((eq (car val) 'file-query)
(find-buffer-visiting (nth 1 val))
(find-file (nth 1 val))
(goto-char (nth 2 val)))
(t (cl-call-next-method val delete))))
;;; Intentionally disable some key-bindings.
;;;###autoload
(defun intentionally-disabled-bind ()
"Warn the user that this key-binding is intentionally disabled."
(interactive)
(user-error "You pressed an intentionally disabled key-binding: %s"
(key-description (this-command-keys-vector))))
;;; Hide some minor mode from the mode line display.
;;;###autoload
(defmacro durand-hide-minor-mode (minor &optional to-require light)
"Hide MINOR from the mode line.
Require TO-REQUIRE so that we don't have errors.
Optional LIGHT means to use the lighter name instead of
completely hiding it."
;; (cond (to-require (require to-require)))
(cond
(to-require `(eval-after-load ',to-require
(quote
(setcdr
(assq ',minor minor-mode-alist)
(list (or ,light ""))))))
(`(setcdr (assq ',minor minor-mode-alist) (list (or ,light ""))))))
(provide 'common)
;;; common.el ends here.
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