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;;; core-popups.el -*- lexical-binding: t; -*-
;; I want a "real"-buffer-first policy in my Emacsian utpoia; popup buffers
;; ought to be second-class citizens to "real" buffers. No need for a wall or
;; controversial immigration policies -- all we need is `shackle' (and it will
;; actually work).
;; The gist is: popups should be displayed on one side of the frame, away from
;; 'real' buffers. They should be easy to dispose of when we don't want to see
;; them and easily brought back in case we change our minds. Also, popups should
;; typically have no mode-line.
;; Be warned, this requires a lot of hackery voodoo that could break with an
;; emacs update or an update to any of the packages it tries to tame (like helm
;; or org-mode).
(defvar doom-popup-history nil
"A list of popups that were last closed. Used by `doom/popup-restore' and
(defvar doom-popup-other-window nil
"The last window selected before a popup was opened.")
(defvar doom-popup-no-fringes t
"If non-nil, disable fringes in popup windows.")
(defvar doom-popup-windows ()
"A list of open popup windows.")
(defvar-local doom-popup-rules nil
"The shackle rule that caused this buffer to be recognized as a popup. Don't
edit this directly.")
(put 'doom-popup-rules 'permanent-local t)
(defvar doom-popup-window-parameters
'(:noesc :modeline :autokill :autoclose :autofit :static)
"A list of window parameters that are set (and cleared) when `doom-popup-mode
is enabled/disabled.'")
(defvar doom-popup-remember-history t
"Don't modify this directly. If non-nil, DOOM will remember the last popup(s)
that was/were open in `doom-popup-history'.")
(defvar doom-popup-inhibit-autokill nil
"Don't modify this directly. When it is non-nil, no buffers will be killed
when their associated popup windows are closed, despite their :autokill
(defvar doom-popup-mode-map (make-sparse-keymap)
"Active keymap in popup windows.")
(def-setting! :popup (&rest rules)
"Prepend a new popup rule to `shackle-rules' (see for format details).
Several custom properties have been added that are not part of shackle, but are
recognized by DOOM's popup system. They are:
:noesc If non-nil, the popup won't be closed if you press ESC from *inside*
its window. Used by `doom/popup-close-maybe'.
:modeline By default, mode-lines are hidden in popups unless this is non-nil.
If it is a symbol, it'll use `doom-modeline' to fetch a modeline
config (in `doom-popup-mode').
:autokill If non-nil, the popup's buffer will be killed when the popup is
closed. Used by `doom*delete-popup-window'. NOTE
`doom/popup-restore' can't restore non-file popups that have an
:autokill property.
:autoclose If non-nil, close popup if ESC is pressed from outside the popup
:autofit If non-nil, resize the popup to fit its content. Uses the value of
the :size property as the maximum height/width. This will not work
if the popup has no content when displayed.
:static If non-nil, don't treat this window like a popup. This makes it
impervious to being automatically closed or tracked in popup
history. Excellent for permanent sidebars."
(if (cl-every #'listp (mapcar #'doom-unquote rules))
`(setq shackle-rules (nconc (list ,@rules) shackle-rules))
`(push (list ,@rules) shackle-rules)))
;; (defvar doom-popup-parameters
;; '(:esc :modeline :transient :fit :align :size)
;; "TODO")
;; (defvar doom-popup-whitelist
;; '(("^ ?\\*" :size 15 :noselect t :autokill t :autoclose t))
;; "TODO")
(defvar doom-popup-blacklist
;; Bootstrap
(def-package! shackle
(setq shackle-default-alignment 'below
shackle-default-size 8
'(("^\\*eww" :regexp t :size 0.5 :select t :autokill t :noesc t)
("^\\*ftp " :noselect t :autokill t :noesc t)
;; doom
("^\\*doom:scratch" :regexp t :size 15 :noesc t :select t :modeline t :autokill t :static t)
("^\\*doom:" :regexp t :size 0.35 :noesc t :select t)
("^ ?\\*doom " :regexp t :noselect t :autokill t :autoclose t :autofit t)
;; built-in (emacs)
("*compilation*" :size 0.25 :noselect t :autokill t :autoclose t)
("*ert*" :same t :modeline t)
("*info*" :size 0.5 :select t :autokill t)
("*Backtrace*" :size 20 :noselect t)
("*Warnings*" :size 12 :noselect t :autofit t)
("*Messages*" :size 12 :noselect t)
("*Help*" :size 0.3 :autokill t)
("^\\*.*Shell Command.*\\*$" :regexp t :size 20 :noselect t :autokill t)
(apropos-mode :size 0.3 :autokill t :autoclose t)
(Buffer-menu-mode :size 20 :autokill t)
(comint-mode :noesc t)
(grep-mode :size 25 :noselect t :autokill t)
(profiler-report-mode :size 0.3 :regexp t :autokill t :modeline minimal)
(tabulated-list-mode :noesc t)
("^ ?\\*" :regexp t :size 15 :noselect t :autokill t :autoclose t)))
;; NOTE This is a temporary fix while I rewrite core-popups
(defun doom-display-buffer-condition (buffer _action)
(and (cl-loop for re in doom-popup-blacklist
when (string-match-p re buffer)
return nil
finally return t)
(shackle-match buffer)))
(defun doom-display-buffer-action (buffer alist)
(shackle-display-buffer buffer alist (shackle-match buffer)))
(defun doom|autokill-popups ()
(or (not (doom-popup-p))
(prog1 (when (and (not doom-popup-inhibit-autokill)
(plist-get doom-popup-rules :autokill))
(doom-popup-mode -1)
(when-let* ((process (get-buffer-process (current-buffer))))
(set-process-query-on-exit-flag process nil))
(add-hook! doom-post-init
(setq display-buffer-alist
(cons '(doom-display-buffer-condition doom-display-buffer-action)
(add-hook 'kill-buffer-query-functions #'doom|autokill-popups))
;; no modeline in popups
(add-hook 'doom-popup-mode-hook #'doom|hide-modeline-in-popup)
;; ensure every rule without an :align, :same or :frame property has an
;; implicit :align (see `shackle-default-alignment')
(advice-add #'shackle--match :filter-return #'doom*shackle-always-align)
;; bootstrap popup system
(advice-add #'shackle-display-buffer :around #'doom*popup-init)
(advice-add #'balance-windows :around #'doom*popups-save)
(advice-add #'delete-window :before #'doom*delete-popup-window)
;; Tell `window-state-get' and `current-window-configuration' to recognize
;; these custom parameters. Helpful for `persp-mode' and persisting window
;; configs that have popups in them.
(dolist (param `(popup ,@doom-popup-window-parameters))
(push (cons param 'writable) window-persistent-parameters))
(let ((map doom-popup-mode-map))
(define-key map [escape] #'doom/popup-close-maybe)
(define-key map (kbd "ESC") #'doom/popup-close-maybe)
(define-key map [remap quit-window] #'doom/popup-close-maybe)
(define-key map [remap doom/kill-this-buffer] #'doom/popup-close-maybe)
(define-key map [remap split-window-right] #'ignore)
(define-key map [remap split-window-below] #'ignore)
(define-key map [remap split-window-horizontally] #'ignore)
(define-key map [remap split-window-vertically] #'ignore)
(define-key map [remap mouse-split-window-horizontally] #'ignore)
(define-key map [remap mouse-split-window-vertically] #'ignore)))
;; Hacks
(progn ; hacks for built-in functions
(defun doom*suppress-pop-to-buffer-same-window (orig-fn &rest args)
(cl-letf (((symbol-function 'pop-to-buffer-same-window)
(symbol-function 'pop-to-buffer)))
(apply orig-fn args)))
(advice-add #'info :around #'doom*suppress-pop-to-buffer-same-window)
(advice-add #'eww :around #'doom*suppress-pop-to-buffer-same-window)
(advice-add #'eww-browse-url :around #'doom*suppress-pop-to-buffer-same-window)
(defun doom*popup-buffer-menu (&optional arg)
"Open `buffer-menu' in a popup window."
(interactive "P")
(with-selected-window (doom-popup-buffer (list-buffers-noselect arg))
(setq mode-line-format "Commands: d, s, x, u; f, o, 1, 2, m, v; ~, %; q to quit; ? for help.")))
(advice-add #'buffer-menu :override #'doom*popup-buffer-menu))
(after! comint
(defun doom|popup-close-comint-buffer ()
(when (and (doom-popup-p)
(derived-mode-p 'comint-mode)
(not (process-live-p (get-buffer-process (current-buffer)))))
(add-hook '+evil-esc-hook #'doom|popup-close-comint-buffer t))
(after! eshell
;; By tying buffer life to its process, we ensure that we land back in the
;; eshell buffer after term dies. May cause problems with short-lived
;; processes.
;; FIXME replace with a 'kill buffer' keybinding.
(setq eshell-destroy-buffer-when-process-dies t)
;; When eshell runs a visual command (see `eshell-visual-commands'), it spawns
;; a term buffer to run it in, but where it spawns it is the problem...
(defun doom*eshell-undedicate-popup (orig-fn &rest args)
"Force spawned term buffer to share with the eshell popup (if necessary)."
(when (doom-popup-p)
(set-window-dedicated-p nil nil)
(add-transient-hook! #'eshell-query-kill-processes :after
(set-window-dedicated-p nil t)))
(apply orig-fn args))
(advice-add #'eshell-exec-visual :around #'doom*eshell-undedicate-popup))
(after! evil
(let ((map doom-popup-mode-map))
(define-key map [remap evil-window-delete] #'doom/popup-close-maybe)
(define-key map [remap evil-save-modified-and-close] #'doom/popup-close-maybe)
(define-key map [remap evil-window-move-very-bottom] #'doom/popup-move-bottom)
(define-key map [remap evil-window-move-very-top] #'doom/popup-move-top)
(define-key map [remap evil-window-move-far-left] #'doom/popup-move-left)
(define-key map [remap evil-window-move-far-right] #'doom/popup-move-right)
(define-key map [remap evil-window-split] #'ignore)
(define-key map [remap evil-window-vsplit] #'ignore))
(defun doom|popup-close-maybe ()
"If current window is a popup, close it. If minibuffer is open, close it. If
not in a popup, close all popups with an :autoclose property."
(if (doom-popup-p)
(unless (doom-popup-property :noesc)
(add-hook '+evil-esc-hook #'doom|popup-close-maybe t)
;; Make evil-mode cooperate with popups
(advice-add #'evil-command-window :override #'doom*popup-evil-command-window)
(advice-add #'evil-command-window-execute :override #'doom*popup-evil-command-window-execute)
(defun doom*popup-evil-command-window (hist cmd-key execute-fn)
"The evil command window has a mind of its own (uses `switch-to-buffer'). We
monkey patch it to use pop-to-buffer, and to remember the previous window."
(when (eq major-mode 'evil-command-window-mode)
(user-error "Cannot recursively open command line window"))
(dolist (win (window-list))
(when (equal (buffer-name (window-buffer win))
"*Command Line*")
(kill-buffer (window-buffer win))
(delete-window win)))
(setq evil-command-window-current-buffer (current-buffer))
(ignore-errors (kill-buffer "*Command Line*"))
(with-current-buffer (pop-to-buffer "*Command Line*")
(setq-local evil-command-window-execute-fn execute-fn)
(setq-local evil-command-window-cmd-key cmd-key)
(evil-command-window-insert-commands hist)))
(defun doom*popup-evil-command-window-execute ()
"Execute the command under the cursor in the appropriate buffer, rather than
the command buffer."
(let ((result (buffer-substring (line-beginning-position)
(execute-fn evil-command-window-execute-fn)
(popup (selected-window)))
(select-window doom-popup-other-window)
(unless (equal evil-command-window-current-buffer (current-buffer))
(user-error "Originating buffer is no longer active"))
;; (kill-buffer "*Command Line*")
(doom/popup-close popup)
(funcall execute-fn result)
(setq evil-command-window-current-buffer nil)))
;; Don't mess with popups
(advice-add #'doom-evil-window-move :around #'doom*popups-save)
(advice-add #'evil-window-move-very-bottom :around #'doom*popups-save)
(advice-add #'evil-window-move-very-top :around #'doom*popups-save)
(advice-add #'evil-window-move-far-left :around #'doom*popups-save)
(advice-add #'evil-window-move-far-right :around #'doom*popups-save)
;; Don't block moving to/from popup windows
(defun doom*ignore-window-parameters-in-popups (dir &optional arg window)
(window-in-direction (cond ((eq dir 'up) 'above)
((eq dir 'down) 'below)
(t dir))
window t arg windmove-wrap-around t))
(advice-add #'windmove-find-other-window :override #'doom*ignore-window-parameters-in-popups))
(after! helm
;; Helm tries to clean up after itself, but shackle has already done this,
;; causing problems. This fixes that. To reproduce, add a helm rule in
;; `shackle-rules', open two splits side-by-side, move to the buffer on the
;; right and invoke helm. It will close all but the left-most buffer.
(setq-default helm-reuse-last-window-split-state t
helm-split-window-in-side-p t)
(after! helm-swoop
(setq helm-swoop-split-window-function #'pop-to-buffer))
(after! helm-ag
;; This prevents helm-ag from switching between windows and buffers.
(defun doom*helm-ag-edit-done (orig-fn &rest args)
(cl-letf (((symbol-function 'select-window) #'ignore))
(apply orig-fn args))
(advice-add #'helm-ag--edit-commit :around #'doom*helm-ag-edit-done)
(advice-add #'helm-ag--edit-abort :around #'doom*helm-ag-edit-done)
(defun doom*helm-ag-edit (orig-fn &rest args)
(cl-letf (((symbol-function 'other-window) #'ignore)
((symbol-function 'switch-to-buffer) #'doom-popup-buffer))
(apply orig-fn args)
(with-current-buffer (get-buffer "*helm-ag-edit*")
(use-local-map helm-ag-edit-map))))
(advice-add #'helm-ag--edit :around #'doom*helm-ag-edit)))
(defsubst doom--switch-from-popup (location)
(switch-to-buffer (car location) nil t)
(if (not (cdr location))
(message "Unable to find location in file")
(goto-char (cdr location))
(after! help-mode
;; Help buffers use `other-window' to decide where to open followed links,
;; which can be unpredictable. It should *only* replace the original buffer we
;; opened the popup from. To fix this these three button types need to be
;; redefined to set aside the popup before following a link.
(define-button-type 'help-function-def
:supertype 'help-xref
(lambda (fun file)
(require 'find-func)
(when (eq file 'C-source)
(setq file (help-C-file-name (indirect-function fun) 'fun)))
(doom--switch-from-popup (find-function-search-for-symbol fun nil file))))
(define-button-type 'help-variable-def
:supertype 'help-xref
(lambda (var &optional file)
(when (eq file 'C-source)
(setq file (help-C-file-name var 'var)))
(doom--switch-from-popup (find-variable-noselect var file))))
(define-button-type 'help-face-def
:supertype 'help-xref
(lambda (fun file)
(require 'find-func)
(doom--switch-from-popup (find-function-search-for-symbol fun 'defface file)))))
(after! magit
(add-hook 'magit-mode-hook #'doom-hide-modeline-mode))
(after! mu4e
(defun doom*mu4e-popup-window (buf _height)
(doom-popup-buffer buf '(:size 10 :noselect t))
(advice-add #'mu4e~temp-window :override #'doom*mu4e-popup-window))
(after! multi-term
(setq multi-term-buffer-name "doom:terminal"))
(after! neotree
;; Neotree has its own window/popup management built-in, which is difficult to
;; police. For example, switching perspectives will cause neotree to forget it
;; is a neotree pane.
;; By handing neotree over to shackle, which is better integrated into the
;; rest of my config (and persp-mode), this is no longer a problem.
(set! :popup " *NeoTree*" :align neo-window-position :size neo-window-width :static t)
(defun +evil-neotree-display-fn (buf _alist)
"Hand neotree off to shackle."
(let ((win (doom-popup-buffer buf)))
(setq neo-global--buffer (window-buffer win)
neo-global--window win)))
(setq neo-display-action '(+evil-neotree-display-fn))
(defun +evil|neotree-fix-popup ()
"Repair neotree state whenever its popup state is restored. This ensures
that `doom*popup-save' won't break it."
(when (equal (buffer-name) neo-buffer-name)
(setq neo-global--window (selected-window))
;; Fix neotree shrinking when closing nearby vertical splits
(when neo-window-fixed-size
(doom-resize-window neo-global--window neo-window-width t t))))
(add-hook 'doom-popup-mode-hook #'+evil|neotree-fix-popup))
(after! persp-mode
(defun doom*persp-mode-restore-popups (&rest _)
"Restore popup windows when loading a perspective from file."
(dolist (window (window-list))
(when-let* ((plist (doom-popup-properties window)))
(with-selected-window window
(unless doom-popup-mode
(setq-local doom-popup-rules plist)
(doom-popup-mode +1))))))
(advice-add #'persp-load-state-from-file :after #'doom*persp-mode-restore-popups))
(after! quickrun
;; don't auto-focus quickrun windows, shackle handles that
(setq quickrun-focus-p nil))
(after! twittering-mode
(setq twittering-pop-to-buffer-function #'pop-to-buffer))
(after! wgrep
;; close the popup after you're done with a wgrep buffer
(advice-add #'wgrep-abort-changes :after #'doom/popup-close)
(advice-add #'wgrep-finish-edit :after #'doom/popup-close))
(after! xref
(defun doom*xref-follow-and-close (orig-fn &rest args)
"Jump to the xref on the current line, select its window and close the popup
you came from."
(let ((popup-p (doom-popup-p))
(window (selected-window)))
(apply orig-fn args)
(when popup-p (doom/popup-close window))))
(advice-add #'xref-goto-xref :around #'doom*xref-follow-and-close))
;; Major modes
(after! plantuml-mode
(defun doom*plantuml-preview-in-popup-window (orig-fn &rest args)
(apply orig-fn args))
(pop-to-buffer plantuml-preview-buffer))
(advice-add #'plantuml-preview-string
:around #'doom*plantuml-preview-in-popup-window))
;; Ensure these settings are loaded as late as possible, giving other modules a
;; chance to reconfigure org popup settings before the defaults kick in.
(defun doom|init-org-popups ()
(add-hook! org-load
(set! :popup
'("*Calendar*" :size 0.4 :noselect t)
'(" *Org todo*" :size 5 :noselect t)
'("*Org Note*" :size 10)
'("*Org Select*" :size 20 :noselect t)
'("*Org Links*" :size 5 :noselect t)
'("*Org Export Dispatcher*" :noselect t)
'(" *Agenda Commands*" :noselect t)
'("^\\*Org Agenda" :regexp t :size 20)
'("*Org Clock*" :noselect t)
'("^\\*Org Src" :regexp t :size 0.35 :noesc t)
'("*Edit Formulas*" :size 10)
'("^\\*Org-Babel" :regexp t :size 25 :noselect t)
'("^CAPTURE.*\\.org$" :regexp t :size 20))
;; Org has a scorched-earth window management system I'm not fond of. i.e.
;; it kills all windows and monopolizes the frame. No thanks. We can do
;; better with shackle's help.
(defun doom*suppress-delete-other-windows (orig-fn &rest args)
(cl-letf (((symbol-function 'delete-other-windows)
(symbol-function 'ignore)))
(apply orig-fn args)))
(advice-add #'org-add-log-note :around #'doom*suppress-delete-other-windows)
(advice-add #'org-capture-place-template :around #'doom*suppress-delete-other-windows)
(advice-add #'org-export--dispatch-ui :around #'doom*suppress-delete-other-windows)
;; Hand off the src-block window to a shackle popup window.
(defun doom*org-src-pop-to-buffer (buffer _context)
"Open the src-edit in a way that shackle can detect."
(if (eq org-src-window-setup 'switch-invisibly)
(set-buffer buffer)
(pop-to-buffer buffer)))
(advice-add #'org-src-switch-to-buffer :override #'doom*org-src-pop-to-buffer)
;; Ensure todo, agenda, and other minor popups are delegated to shackle.
(defun doom*org-pop-to-buffer (&rest args)
"Use `pop-to-buffer' instead of `switch-to-buffer' to open buffer.'"
(let ((buf (car args)))
(cond ((stringp buf) (get-buffer-create buf))
((bufferp buf) buf)
(t (error "Invalid buffer %s" buf))))))
(advice-add #'org-switch-to-buffer-other-window :override #'doom*org-pop-to-buffer)
;; org-agenda
(setq org-agenda-window-setup 'other-window
org-agenda-restore-windows-after-quit nil)
;; Hide modeline in org-agenda
(add-hook 'org-agenda-finalize-hook #'doom-hide-modeline-mode)
(add-hook 'org-agenda-finalize-hook #'org-fit-window-to-buffer)
;; Don't monopolize frame!
(advice-add #'org-agenda :around #'doom*suppress-delete-other-windows)
;; ensure quit keybindings work propertly
(map! :map* org-agenda-mode-map
:m [escape] 'org-agenda-Quit
:m "ESC" 'org-agenda-Quit)))
(add-hook 'doom-init-hook #'doom|init-org-popups)
(provide 'core-popups)
;;; core-popups.el ends here