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;;; ycp-buffer.el -- My config for buffers, windows, frames etc. -*- lexical-binding: t -*-

;; Copyright (C) 2023 Free Software Foundation.

;; Author: Yuchen Pei <id@ypei.org>
;; Package-Requires: ((emacs "28.2"))

;; This file is part of dotfiles.

;; dotfiles is free software: you can redistribute it and/or modify it under
;; the terms of the GNU Affero General Public License as published by
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.

;; dotfiles is distributed in the hope that it will be useful, but WITHOUT
;; ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
;; or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Affero General
;; Public License for more details.

;; You should have received a copy of the GNU Affero General Public
;; License along with dotfiles.  If not, see <https://www.gnu.org/licenses/>.

;;; Commentary:

;; My config for buffers, windows, frames etc..

;;; Code:


(my-package my-buffer
  (:delay 15)
  (my-keybind global-map
    "\M-c" #'my-copy-buffer-file-name
    "<C-f2>" #'my-rename-file-and-buffer
    "C-x k" #'my-kill-buffer
    "M-s b" #'my-switch-to-buffer-matching-major-mode
    "M-s v" #'my-buffers-vc-root
    ;; F7: Cycle or create buffers with the same base buffer as the
    ;; current buffer
    "<f10>" #'my-create-or-switch-indirect-buffers
    ;; F8: Cycle or create buffers with the same major mode as the
    ;; current buffer
    "<f8>" #'my-buffer-create-or-cycle-same-mode
    ;; F9: Prompt for a mode, then switch to or create a buffer of
    ;; that mode
    "<f9>" #'my-buffer-switch-or-create-major-mode
    )
  )

(my-configure
  (:delay 15)
  (my-keybind ctl-x-x-map
    "f" #'follow-mode                   ; override `font-lock-update'
    "r" #'rename-uniquely
    "l" #'visual-line-mode)

  ;; make ibuffer default
  (advice-add 'list-buffers :override 'ibuffer-list-buffers)

  ;; In Emacs 27+, use Control + mouse wheel to scale text.
  (setq mouse-wheel-scroll-amount
        '(1
          ((shift) . 5)
          ((meta) . 0.5)
          ((control) . text-scale))
        mouse-drag-copy-region nil
        make-pointer-invisible t
        mouse-wheel-progressive-speed t
        mouse-wheel-follow-mouse t)

  ;; Scrolling behaviour
  (setq-default scroll-conservatively 1 ; affects `scroll-step'
                scroll-margin 0
                next-screen-context-lines 2)

  (mouse-wheel-mode 1)
  (define-key global-map (kbd "C-M-<mouse-3>") #'tear-off-window))

;;; Repeatable key chords (repeat-mode)
(my-package repeat
  (:delay 30)
  (setq repeat-on-final-keystroke t
        repeat-exit-timeout 5
        repeat-exit-key "<escape>"
        repeat-keep-prefix nil
        repeat-check-key t
        repeat-echo-function 'ignore
        ;; Technically, this is not in repeal.el, though it is the
        ;; same idea.
        set-mark-command-repeat-pop t)
  (repeat-mode 1))

;;;; Built-in bookmarking framework (bookmark.el)
(my-package bookmark
  (setq bookmark-use-annotations nil)
  (setq bookmark-automatically-show-annotations t)
  (add-hook 'bookmark-bmenu-mode-hook #'hl-line-mode))

(my-package follow
  (:delay 15)
  ;; TODO: update this to adapt to number of windows
  (my-keybind follow-mode-map
    "C-v" #'follow-scroll-up
    "M-v" #'follow-scroll-down
    "<next>" #'follow-scroll-up
    "<prior>" #'follow-scroll-down)
  )

(my-package view
  (:delay 10)
  (my-keybind view-mode-map
    "n" #'next-line
    "p" #'previous-line
    "f" #'forward-char
    "b" #'backward-char
    "e" #'move-end-of-line
    "a" #'move-beginning-of-line
    "v" #'scroll-up-command
    "V" #'scroll-down-command
    "l" #'previous-buffer
    "r" #'next-buffer
    "d" nil
    "u" nil
    "w" #'kill-ring-save
    "i" #'view-mode)
  (my-keybind global-map "C-`" #'view-mode))

;; move windows
(my-package windmove
  (:delay 5)
  (windmove-default-keybindings 'control)
  ;; swap windows
  (windmove-swap-states-default-keybindings '(control shift))
  (setq windmove-wrap-around t))

(my-package winner
  (:delay 5)
  (winner-mode t))

;;;; `window', `display-buffer-alist', and related
(my-package window
  (require 'time)
  (require 'my-buffer)
  (add-hook 'window-configuration-change-hook 'my-dedicate-windows-by-modes)
  (setq display-buffer-alist
        `(;; no window
          ("\\`\\*Async Shell Command\\*\\'"
           (display-buffer-no-window)
           (dedicated . t))
          ;; bottom side window
          ("\\*Org Select\\*"        ; the `org-capture' key selection
           (display-buffer-in-side-window)
           (dedicated . t)
           (side . bottom)
           (slot . 0)
           (window-parameters . ((mode-line-format . none))))
          ;; bottom buffer (NOT side window)
          ((or . (,(my-buffer-make-display-matcher
                    '(flymake-diagnostics-buffer-mode
                      flymake-project-diagnostics-mode
                      messages-buffer-mode backtrace-mode))
                  "\\*\\(Warnings\\|Compile-Log\\|Org Links\\)\\*"
                  ,world-clock-buffer-name))
           (display-buffer-reuse-mode-window display-buffer-at-bottom)
           (window-height . 0.3)
           (dedicated . t)
           (preserve-size . (t . t)))
          ("\\*\\(Output\\|Register Preview\\).*"
           (display-buffer-reuse-mode-window display-buffer-at-bottom))
          ;; below current window
          ((derived-mode . help-mode) ; See the hooks for `visual-line-mode'
           (display-buffer-reuse-mode-window display-buffer-below-selected))
          ("\\*\\vc-\\(incoming\\|outgoing\\|git : \\).*"
           (display-buffer-reuse-mode-window display-buffer-below-selected)
           (window-height . 0.1)
           (dedicated . t)
           (preserve-size . (t . t)))
          ((derived-mode . log-view-mode)
           (display-buffer-reuse-mode-window display-buffer-below-selected)
           (window-height . 0.3)
           (dedicated . t)
           (preserve-size . (t . t)))
          ((derived-mode . reb-mode)    ; M-x re-builder
           (display-buffer-reuse-mode-window display-buffer-below-selected)
           (window-height . 4) ; note this is literal lines, not relative
           (dedicated . t)
           (preserve-size . (t . t)))
          ("\\*\\(Calendar\\|Bookmark Annotation\\).*"
           (display-buffer-reuse-mode-window display-buffer-below-selected)
           (dedicated . t)
           (window-height . fit-window-to-buffer))
          ("\\*ispell-top-choices\\*.*"
           (display-buffer-reuse-mode-window display-buffer-below-selected)
           (window-height . fit-window-to-buffer))
          ;; same window

          ;; NOTE 2023-02-17: `man' does not fully obey the
          ;; `display-buffer-alist'.  It works for new frames and for
          ;; `display-buffer-below-selected', but otherwise is
          ;; unpredictable.  See `Man-notify-method'.
          ((or . ((derived-mode . Man-mode)
                  (derived-mode . woman-mode)
                  "\\*\\(Man\\|woman\\).*"
                  "\\*shell\\*.*"))
           (display-buffer-same-window))
          ))

  (setq switch-to-buffer-in-dedicated-window 'pop)
  (setq window-combination-resize nil)
  (my-keybind resize-window-repeat-map
    ">" #'enlarge-window-horizontally
    "<" #'shrink-window-horizontally)
  )

(my-keybind global-map
  "C-x C-n" #'next-buffer     ; override `set-goal-column'
  "C-x C-p" #'previous-buffer ; override `mark-page'
  "C-x !" #'delete-other-windows-vertically
  "C-x -" #'fit-window-to-buffer ; hyphen
  "C-x }" #'enlarge-window
  "C-x {" #'shrink-window
  "C-x >" #'enlarge-window-horizontally ; override `scroll-right'
  "C-x <" #'shrink-window-horizontally) ; override `scroll-left'

(my-package my-buffer
  (:delay 10)
  (my-keybind global-map
    "<f1>" #'my-focus-write
    "<insert>" #'my-cycle-windows
    "C-M-<mouse-4>" #'my-increase-default-face-height
    "C-M-<mouse-5>" #'my-decrease-default-face-height)
  )

(setq large-file-warning-threshold 15000000)

(provide 'ycp-buffer)