265 lines
12 KiB
EmacsLisp
265 lines
12 KiB
EmacsLisp
;;; core-popup.el --- taming stray windows
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;; I use a slew of hackery to get Emacs to treat 'pop-up' windows in a sane and "modern"
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;; way (whatever that means). It goes through great lengths to tame helm, flycheck, help
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;; buffers--*even* the beast that is org-mode.
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;;
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;; Be warned, an update could break any of this.
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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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`(;; Util
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("^\\*.+-Profiler-Report .+\\*$" :align below :size 0.3 :regexp t)
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("*esup*" :align below :size 0.4 :noselect t)
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("*minor-modes*" :align below :size 0.5 :noselect t)
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("*eval*" :align below :size 20)
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;; Emacs
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("*Pp Eval Output*" :align below :size 0.3)
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("*Apropos*" :align below :size 0.3)
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("*Backtrace*" :align below :size 25 :noselect t)
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("*Completions*" :align below :size 20 :noselect t)
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("*Help*" :align below :size 16 :select t)
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("*Messages*" :align below :size 15 :select t)
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("*Warnings*" :align below :size 10 :noselect t)
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(compilation-mode :align below :size 15 :noselect t)
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(eww-mode :align below :size 30 :select t)
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;; vcs
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("*vc-diff*" :align below :size 15 :noselect t)
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("*vc-change-log*" :align below :size 15 :select t)
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(vc-annotate-mode :same t)))
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(defvar doom-popup-windows '()
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"A list of windows that have been opened via shackle. Do not touch this!")
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(defvar doom-last-popup nil
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"The last (important) popup buffer.")
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(defvar doom-prev-buffer nil
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"The buffer from which the popup was invoked.")
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(defvar-local doom-popup-protect nil
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"If non-nil, this popup buffer won't be killed when closed.")
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(defvar doom-popup-inescapable-modes
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'(compilation-mode comint-mode "^\\*doom.*\\*$")
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"A list of modes that should not be closeable with a single ESC.")
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(defvar doom-popup-protect-modes
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'(messages-buffer-mode esup-mode help-mode tabulated-list-mode comint-mode)
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"A list of modes that shouldn't be killed and can be revived.")
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;; There is no shackle-popup hook, so I hacked one in
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(defvar doom-popup-pre-hook '() "Hooks run after a popup is opened.")
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(defvar doom-popup-post-hook '() "Hooks run before a popup is opened.")
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(advice-add 'shackle-display-buffer :before 'doom*run-popup-pre-hooks)
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(advice-add 'shackle-display-buffer :after 'doom*run-popup-post-hooks)
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(add-hook 'doom-popup-post-hook 'doom|popup-init) ; Keep track of popups
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(add-hook 'doom-popup-post-hook 'doom|hide-mode-line) ; No mode line in popups
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;; Prevents popups from messaging with windows-moving functions
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(advice-add 'doom/evil-window-move :around 'doom*save-popup))
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;;
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;; Hacks
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;;
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(defun doom-popup-magit-hacks ()
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;; Some wrassling must be done to get magit to kill itself, and trigger my
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;; shackle popup hooks.
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(setq magit-bury-buffer-function
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(lambda (&rest _) (doom/popup-close (selected-window)))
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magit-display-buffer-function
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(lambda (b)
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(funcall (if (doom/popup-p (selected-window)) 'switch-to-buffer 'doom/popup-buffer) b)
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(get-buffer-window b))
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magit-display-file-buffer-function
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(lambda (b)
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(when doom-prev-buffer
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(select-window (get-buffer-window doom-prev-buffer)))
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(switch-to-buffer b))))
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(after! evil
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(defun doom*evil-command-window (hist cmd-key execute-fn)
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(when (eq major-mode 'evil-command-window-mode)
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(user-error "Cannot recursively open command line window"))
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(dolist (win (window-list))
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(when (equal (buffer-name (window-buffer win))
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"*Command Line*")
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(kill-buffer (window-buffer win))
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(delete-window win)))
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(setq evil-command-window-current-buffer (current-buffer))
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(ignore-errors (kill-buffer "*Command Line*"))
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(with-current-buffer (pop-to-buffer "*Command Line*")
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(setq-local evil-command-window-execute-fn execute-fn)
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(setq-local evil-command-window-cmd-key cmd-key)
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(evil-command-window-mode)
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(evil-command-window-insert-commands hist)
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(doom|hide-mode-line)))
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(advice-add 'evil-command-window :override 'doom*evil-command-window))
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(after! help-mode
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;; So that file links in help buffers don't replace the help buffer, we need
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;; to redefine these three button types to use `doom/popup-save' and
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;; `switch-to-buffer' rather than `pop-to-buffer'. This way, it is sure to
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;; open links in the source buffer.
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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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(doom/popup-save
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(switch-to-buffer (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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(doom/popup-save
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(switch-to-buffer (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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(doom/popup-save
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(switch-to-buffer (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
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;; ;; helm. If 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.
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;; ;; This fixes that. To reproduce, add a helm rule in `shackle-rules', open two
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;; ;; splits side-by-side, move to the buffer on the right and invoke helm. It
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;; ;; will close all but the left-most buffer.
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;; (setq-default helm-reuse-last-window-split-state t
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;; 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 (b) (doom/popup-buffer b))))
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;; (after! helm-ag
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;; ;; This prevents helm-ag 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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;; (doom/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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;; (doom/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) 'doom/popup-buffer))
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;; ad-do-it)))
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(after! quickrun
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;; This allows us to rerun code from inside a quickrun buffer.
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(defun doom*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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(doom/popup-close window nil t))))
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(advice-add 'quickrun :before 'doom*quickrun-close-popup)
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(advice-add 'quickrun-region :before 'doom*quickrun-close-popup)
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;; Ensures window is scrolled to BOF
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(defun doom|quickrun-after-run ()
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(with-selected-window (get-buffer-window quickrun/buffer-name)
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(goto-char (point-min))))
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(add-hook 'quickrun-after-run-hook 'doom|quickrun-after-run)
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(add-hook 'quickrun/mode-hook 'doom|hide-mode-line))
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(add-hook! org-load
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;; 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 org-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 doom/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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(after! org-agenda
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(map! :map org-agenda-mode-map
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:e "<escape>" 'doom/org-agenda-quit
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:e "ESC" 'doom/org-agenda-quit
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:e [escape] 'doom/org-agenda-quit
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"q" 'doom/org-agenda-quit
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"Q" 'doom/org-agenda-quit)))
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(after! realgud
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;; This allows realgud debuggers to run in a popup.
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;; TODO Find a more elegant advice-based solution
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;; FIXME Causes realgud:cmd-* to focus popup on every invocation
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(defun realgud:run-process(debugger-name script-filename cmd-args minibuffer-history &optional no-reset)
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(let ((cmd-buf))
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(setq cmd-buf
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(apply 'realgud-exec-shell debugger-name script-filename
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(car cmd-args) no-reset (cdr cmd-args)))
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(let ((process (get-buffer-process cmd-buf)))
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(if (and process (eq 'run (process-status process)))
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(progn
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(pop-to-buffer cmd-buf)
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(define-key evil-emacs-state-local-map (kbd "ESC ESC") 'doom/debug-quit)
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(realgud:track-set-debugger debugger-name)
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(realgud-cmdbuf-info-in-debugger?= 't)
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(realgud-cmdbuf-info-cmd-args= cmd-args)
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(when cmd-buf
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(switch-to-buffer cmd-buf)
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(when realgud-cmdbuf-info
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(let* ((info realgud-cmdbuf-info)
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(cmd-args (realgud-cmdbuf-info-cmd-args info))
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(cmd-str (mapconcat 'identity cmd-args " ")))
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(set minibuffer-history
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(list-utils-uniq (cons cmd-str (eval minibuffer-history))))))))
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;; else
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(progn
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(if cmd-buf (switch-to-buffer cmd-buf))
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(message "Error running command: %s" (mapconcat 'identity cmd-args " ")))))
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cmd-buf)))
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(provide 'core-popup)
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;;; core-popup.el ends here
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