mirror of
https://github.com/doomemacs/doomemacs
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48 lines
1.8 KiB
EmacsLisp
48 lines
1.8 KiB
EmacsLisp
;;; ui/smooth-scroll/config.el -*- lexical-binding: t; -*-
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(use-package! ultra-scroll
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:when (fboundp 'pixel-scroll-precision-mode)
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:hook (doom-first-input . ultra-scroll-mode)
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:hook (doom-first-file . ultra-scroll-mode)
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:init
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(setq scroll-conservatively 101
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scroll-margin 0)
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:config
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(add-hook 'ultra-scroll-hide-functions #'hl-todo-mode)
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(add-hook 'ultra-scroll-hide-functions #'diff-hl-flydiff-mode)
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(add-hook 'ultra-scroll-hide-functions #'jit-lock-mode)
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(add-hook 'ultra-scroll-hide-functions #'good-scroll-mode))
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(use-package good-scroll
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:when (modulep! +interpolate)
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:hook (doom-first-input . good-scroll-mode)
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:config
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;; HACK: We're using good-scroll only for interpolation; ultra-scroll is
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;; responsible for smoothing input scrolling (e.g. the mouse wheel), so do
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;; this to ensure good-scroll keeps its hands off mouse wheels/trackpads.
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(add-hook! 'good-scroll-mode-hook
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(defun +smooth-scroll-coexist-with-ultra-scroll-h ()
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(if good-scroll-mode
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(setq mwheel-scroll-up-function #'scroll-up
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mwheel-scroll-down-function #'scroll-down))))
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(defun good-scroll--convert-line-to-step (line)
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(cond ((integerp line) (* line (line-pixel-height)))
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((or (null line) (memq '- line))
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(- (good-scroll--window-usable-height)
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(* next-screen-context-lines (line-pixel-height))))
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((line-pixel-height))))
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(defadvice! good-scroll--scroll-up (fn &optional arg)
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:around #'scroll-up
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(if good-scroll-mode
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(good-scroll-move (good-scroll--convert-line-to-step arg))
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(funcall fn arg)))
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(defadvice! good-scroll--scroll-down (fn &optional arg)
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:around #'scroll-down
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(if good-scroll-mode
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(good-scroll-move (- (good-scroll--convert-line-to-step arg)))
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(funcall fn arg))))
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