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;;; bind-chord.el --- key-chord binding helper for use-package-chords -*- lexical-binding: t; -*-
;; Copyright (C) 2015-2022 Free Software Foundation, Inc.
;; Author: Justin Talbott <justin@waymondo.com>
;; Keywords: convenience, tools, extensions
;; URL: https://github.com/jwiegley/use-package
;; Version: 0.2.1
;; Package-Requires: ((bind-key "1.0") (key-chord "0.6"))
;; Filename: bind-chord.el
;; License: GNU General Public License version 3, or (at your option) any later version
;;
;;; Commentary:
;;
;;; Code:
(require 'bind-key)
(require 'key-chord nil t)
;;;###autoload
(defmacro bind-chord (chord command &optional keymap)
"Bind CHORD to COMMAND in KEYMAP (`global-map' if not passed)."
(let ((key1 (logand 255 (aref chord 0)))
(key2 (logand 255 (aref chord 1))))
(if (eq key1 key2)
`(bind-key (vector 'key-chord ,key1 ,key2) ,command ,keymap)
`(progn
(bind-key (vector 'key-chord ,key1 ,key2) ,command ,keymap)
(bind-key (vector 'key-chord ,key2 ,key1) ,command ,keymap)))))
(defun bind-chords-form (args keymap)
"Bind multiple chords at once.
Accepts keyword arguments:
:map MAP - a keymap into which the keybindings should be
added
The rest of the arguments are conses of keybinding string and a
function symbol (unquoted)."
(let (map pkg)
(let ((cont t))
(while (and cont args)
(if (cond ((eq :map (car args))
(setq map (cadr args)))
((eq :package (car args))
(setq pkg (cadr args))))
(setq args (cddr args))
(setq cont nil))))
(unless map (setq map keymap))
(let (first next)
(while args
(if (keywordp (car args))
(progn
(setq next args)
(setq args nil))
(if first
(nconc first (list (car args)))
(setq first (list (car args))))
(setq args (cdr args))))
(cl-flet
((wrap (map bindings)
(if (and map pkg (not (memq map '(global-map
override-global-map))))
`((if (boundp ',map)
,(macroexp-progn bindings)
(eval-after-load
,(if (symbolp pkg) `',pkg pkg)
',(macroexp-progn bindings))))
bindings)))
(append
(wrap map
(cl-mapcan
(lambda (form)
(let ((fun (and (cdr form) (list 'function (cdr form)))))
(if (and map (not (eq map 'global-map)))
`((bind-chord ,(car form) ,fun ,map))
`((bind-chord ,(car form) ,fun nil)))))
first))
(when next
(bind-chords-form (if pkg
(cons :package (cons pkg next))
next) map)))))))
;;;###autoload
(defmacro bind-chords (&rest args)
"Bind multiple chords at once.
Accepts keyword argument:
:map - a keymap into which the keybindings should be added
The rest of the arguments are conses of keybinding string and a
function symbol (unquoted)."
(macroexp-progn (bind-chords-form args nil)))
(provide 'bind-chord)
;;; bind-chord.el ends here
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