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72 lines
2.4 KiB
Scheme
Executable file
72 lines
2.4 KiB
Scheme
Executable file
(define-module (modules which-key)
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#:use-module (swayipc records)
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#:use-module (swayipc info)
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#:use-module (swayipc dispatcher)
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#:use-module (swayipc events)
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#:use-module (modules general)
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#:use-module (ice-9 hash-table)
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#:use-module (srfi srfi-18)
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#:export (which-key-init
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which-key-configure
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which-key-delay-idle
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which-key-display-keybindings-hook
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which-key-event-counter
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which-key-hide-keybindings-hook))
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;; idle delay before showing
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(define which-key-delay-idle 1.5)
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;; used to keep track of how many events occured
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(define which-key-event-counter 0)
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;; used to keep track of whether the which-key is active or not
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(define which-key-active #f)
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(define* (get-submap-keybindings submap #:optional (keybindings general-keybindings))
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"Return all provided submap keybindings.
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Returned value is a list of keybindings. Each is a list
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that contains the values: (CHORD KEY EXP WK SUBMAP)."
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(filter (lambda (ls) (equal? (list-ref ls 4) submap))
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(hash-map->list cons keybindings)))
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;; emitted on submap change.
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;; Parameters:
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;; - arg1: submap.
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;; - arg2: available keybindings.
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(define which-key-display-keybindings-hook
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(make-hook 2))
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;; emitted on submap change to default.
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;; Parameters:
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;; - arg1: submap.
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(define which-key-hide-keybindings-hook
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(make-hook 1))
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(define (mode-changed mode-event)
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(let ((mode (sway-mode-event-change mode-event))
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(counter (+ 1 which-key-event-counter)))
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(set! which-key-event-counter counter)
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(if (equal? "default" mode)
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(begin
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(set! which-key-active #f)
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(run-hook which-key-hide-keybindings-hook mode))
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(thread-start!
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(make-thread
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(lambda ()
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(unless which-key-active
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(usleep (inexact->exact (* 1000000 which-key-delay-idle))))
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(when (equal? which-key-event-counter counter)
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(set! which-key-active #t)
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(run-hook which-key-display-keybindings-hook mode (get-submap-keybindings mode)))))))))
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(define* (which-key-configure #:key delay-idle)
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"Configure which-key
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Parameters:
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- delay-idle: the idle delay before showing the which key menu."
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(when delay-idle
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(set! which-key-delay-idle delay-idle)))
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(define (which-key-init)
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"Initialize the which-key module."
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(add-hook! sway-mode-hook mode-changed)
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(display "starting which-key\n"))
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