219 lines
10 KiB
EmacsLisp
219 lines
10 KiB
EmacsLisp
;;; core-popup.el --- taming stray windows
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;; The following is a whole slew of hackery to get Emacs to treat 'pop-up' windows in a
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;; sane and "modern" way (whatever that means). It goes through great lengths to tame
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;; helm, flycheck, help buffers--*even* the beast that is org-mode.
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;;
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;; Be warned, any of this may break as their respective packages update!
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(use-package shackle
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:config
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(shackle-mode 1)
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(setq shackle-rules
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'(;; Plugins
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("\\` ?\\*[hH]elm.*?\\*\\'" :regexp t :align below :size 20 :select t)
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(" ?\\*Flycheck.+\\*" :regexp t :align below :size 15 :noselect t)
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(" *NeoTree*" :align left :select t)
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("*evil-registers*" :align below :size 0.3)
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("*quickrun*" :align below :size 15 :noselect t)
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("*eval*" :align below :size 15)
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("*esup*" :align below :size 30 :noselect t)
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("*ert*" :align below :size 20 :noselect t)
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;; vcs
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("^\\*git-gutter.+\\*$" :regexp t :align below :size 0.4 :noselect t)
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("*vc-diff*" :align below :size 0.4 :noselect t)
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("*vc-change-log*" :align below :select t)
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(vc-annotate-mode :same t)
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("*Apropos*" :align below :size 0.3)
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("*minor-modes*" :align below :size 0.5 :noselect t)
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;; Org
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("^\\*Org Src .+\\*$" :regexp t :align below :size 0.4 :select t)
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("^\\*Org-Babel.*\\*$" :regexp t :align below :size 0.4)
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("^\\*Org Agenda.+" :regexp t :align below :size 0.4)
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("*Calendar*" :align below :size 0.4)
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(" *Agenda Commands*" :align below :size 30)
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(" *Org todo*" :align below :size 5 :noselect t)
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("*Org Links*" :align below :size 5)
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;; Emacs
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("^\\*.+-Profiler-Report .+\\*$" :regexp t :align below :size 0.3)
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("*Backtrace*" :align below :size 0.25 :noselect t)
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("*scratch*" :align below :size 0.3 :select t)
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("*Help*" :align below :size 25 :select t)
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("*Messages*" :align below :size 20 :select t)
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("*Completions*" :align below :size 20 :noselect t)
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(debugger-mode :align below :size 0.25 :noselect t)
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(compilation-mode :noselect t)
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;; REPLs
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((:custom (lambda (b &rest _)
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(when (featurep 'repl-toggle)
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(when (string-prefix-p "*" (buffer-name (get-buffer b)))
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(with-current-buffer b repl-p)))))
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:popup t :align below :size 16)))
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(defvar narf-popup-windows '()
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"A list of windows that have been opened via shackle. Do not touch this!")
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(after! ert
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(add-hook! 'ert-results-mode-hook 'narf|hide-mode-line)
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(map! (:map ert-results-mode-map
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[escape] 'quit-window
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"<escape>" 'quit-window)))
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(after! help-mode
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;; So that help buffer links do not open in the help popup, we need to redefine these
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;; three button types to use `switch-to-buffer-other-window' rather than
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;; `pop-to-buffer'. Instead of lambas these help-functions should be function symbols,
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;; so that we could advise those instead of clumsify redefine these button types.
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(define-button-type 'help-function-def
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:supertype 'help-xref
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'help-function (lambda (fun file)
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(require 'find-func)
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(when (eq file 'C-source)
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(setq file (help-C-file-name (indirect-function fun) 'fun)))
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(let ((location
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(find-function-search-for-symbol fun nil file)))
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(switch-to-buffer-other-window (car location))
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(if (cdr location)
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(goto-char (cdr location))
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(message "Unable to find location in file"))))
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'help-echo (purecopy "mouse-2, RET: find function's definition"))
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(define-button-type 'help-variable-def
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:supertype 'help-xref
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'help-function (lambda (var &optional file)
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(when (eq file 'C-source)
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(setq file (help-C-file-name var 'var)))
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(let ((location (find-variable-noselect var file)))
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(switch-to-buffer-other-window (car location))
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(if (cdr location)
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(goto-char (cdr location))
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(message "Unable to find location in file"))))
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'help-echo (purecopy "mouse-2, RET: find variable's definition"))
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(define-button-type 'help-face-def
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:supertype 'help-xref
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'help-function (lambda (fun file)
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(require 'find-func)
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(let ((location
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(find-function-search-for-symbol fun 'defface file)))
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(switch-to-buffer-other-window (car location))
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(if (cdr location)
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(goto-char (cdr location))
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(message "Unable to find location in file"))))
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'help-echo (purecopy "mouse-2, RET: find face's definition")))
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(after! helm
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;; This is a good alternative to either popwin or shackle, specifically for helm. If
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;; either fail me (for the last time), this is where I'll turn.
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;;(add-to-list 'display-buffer-alist
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;; `(,(rx bos "*helm" (* not-newline) "*" eos)
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;; (display-buffer-in-side-window)
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;; (inhibit-same-window . t)
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;; (window-height . 0.4)))
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;; Helm tries to clean up after itself, but shackle has already done this. This fixes
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;; that. To reproduce, add a helm rule in `shackle-rules', open two splits
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;; side-by-side, move to the buffer on the right and invoke helm. It will close all
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;; but the left-most buffer.
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(setq-default helm-split-window-in-side-p t))
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(after! helm-swoop
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(setq helm-swoop-split-window-function (lambda ($buf) (narf/popup-buffer $buf))))
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(after! helm-ag
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;; Helm-ag needs a little coaxing for it to cooperate with shackle. Mostly to prevent
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;; it from switching between windows and buffers.
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(defadvice helm-ag--edit-abort (around helm-ag-edit-abort-popup-compat activate)
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(cl-letf (((symbol-function 'select-window) 'ignore)) ad-do-it)
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(narf/popup-close nil t t))
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(defadvice helm-ag--edit-commit (around helm-ag-edit-commit-popup-compat activate)
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(cl-letf (((symbol-function 'select-window) 'ignore)) ad-do-it)
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(narf/popup-close nil t t))
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(defadvice helm-ag--edit (around helm-ag-edit-popup-compat activate)
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(cl-letf (((symbol-function 'other-window) 'ignore)
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((symbol-function 'switch-to-buffer) 'narf/popup-buffer))
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ad-do-it)))
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(after! quickrun
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;; This allows us to run code several times in a row without having to close the popup
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;; window and move back to the code buffer.
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(defun narf*quickrun-close-popup (&optional _ _ _ _)
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(let* ((buffer (get-buffer quickrun/buffer-name))
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(window (and buffer (get-buffer-window buffer))))
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(when buffer
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(shut-up! (quickrun/kill-running-process))
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(narf/popup-close window nil t))))
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(advice-add 'quickrun :before 'narf*quickrun-close-popup)
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(advice-add 'quickrun-region :before 'narf*quickrun-close-popup)
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;; Turns on `nlinum-mode', and ensures window is scrolled to EOF
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(defun narf|quickrun-after-run ()
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(let ((window (get-buffer-window quickrun/buffer-name)))
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(with-selected-window window
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(make-variable-buffer-local 'nlinum-format)
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(setq nlinum-format "%3d ")
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(narf|nlinum-enable)
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(narf|hide-mode-line)
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(let* ((lines (count-lines (point-min) (point-max)))
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(act-lines (max 5 (min 30 lines))))
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(set-window-start window (evil-line-position (+ 2 (- lines act-lines))))
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(evil-resize-window act-lines)))))
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(add-hook 'quickrun-after-run-hook 'narf|quickrun-after-run)
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;; I let `narf|quickrun-after-run' handle scrolling, so quickrun shouldn't have to!
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(advice-add 'quickrun/recenter :override 'ignore))
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(after! repl-toggle
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(map! :map repl-toggle-mode-map
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"ESC ESC" 'narf/popup-close))
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(add-hook! org-load
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;; This ensures org-src-edit yields control of its buffer to shackle.
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(defun org-src-switch-to-buffer (buffer context)
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(pop-to-buffer buffer))
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;; And these for org-todo, org-link and agenda
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(defun org-pop-to-buffer-same-window (&optional buffer-or-name norecord label)
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"Pop to buffer specified by BUFFER-OR-NAME in the selected window."
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(display-buffer buffer-or-name))
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(defun org-switch-to-buffer-other-window (&rest args)
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(mapc (lambda (b)
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(let ((buf (if (stringp b) (get-buffer-create b) b)))
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(pop-to-buffer buf t t)))
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args))
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;; Taming Org-agenda!
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(defun narf/org-agenda-quit ()
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"Necessary to finagle org-agenda into shackle popups and behave properly on quit."
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(interactive)
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(if org-agenda-columns-active
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(org-columns-quit)
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(let ((buf (current-buffer)))
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(and (not (eq org-agenda-window-setup 'current-window))
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(not (one-window-p))
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(delete-window))
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(kill-buffer buf)
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(setq org-agenda-archives-mode nil
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org-agenda-buffer nil))))
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(map! :map org-agenda-mode-map
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:e "<escape>" 'narf/org-agenda-quit
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:e "ESC" 'narf/org-agenda-quit
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:e [escape] 'narf/org-agenda-quit
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"q" 'narf/org-agenda-quit
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"Q" 'narf/org-agenda-quit))
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(after! flycheck
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(map! :map flycheck-error-list-mode-map
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:n "q" 'narf/popup-close
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:n [escape] 'narf/popup-close)))
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(provide 'core-popup)
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;;; core-popup.el ends here
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