GNU bug report logs - #29985
Allow modifier combinations in windmove-default-keybindings

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Juri Linkov <juri <at> linkov.net>
To: bug-gnu-emacs <at> gnu.org
Subject: Allow modifier combinations in windmove-default-keybindings
Date: Thu, 04 Jan 2018 23:47:36 +0200

I propose to support a list of modifiers as an arg of
‘windmove-default-keybindings’ to be able to customize it
with e.g. (windmove-default-keybindings '(meta shift))

diff --git a/lisp/windmove.el b/lisp/windmove.el
index db77d81..f565068 100644
--- a/lisp/windmove.el
+++ b/lisp/windmove.el
@@ -543,16 +543,18 @@ windmove-down
 ;; probably want to use different bindings in that case.
 
 ;;;###autoload
-(defun windmove-default-keybindings (&optional modifier)
+(defun windmove-default-keybindings (&optional modifiers)
   "Set up keybindings for `windmove'.
-Keybindings are of the form MODIFIER-{left,right,up,down}.
-Default MODIFIER is `shift'."
+Keybindings are of the form MODIFIERS-{left,right,up,down},
+where MODIFIERS is either a list of modifiers or a single modifier.
+Default value of MODIFIERS is `shift'."
   (interactive)
-  (unless modifier (setq modifier 'shift))
-  (global-set-key (vector (list modifier 'left))  'windmove-left)
-  (global-set-key (vector (list modifier 'right)) 'windmove-right)
-  (global-set-key (vector (list modifier 'up))    'windmove-up)
-  (global-set-key (vector (list modifier 'down))  'windmove-down))
+  (unless modifiers (setq modifiers 'shift))
+  (unless (listp modifiers) (setq modifiers (list modifiers)))
+  (global-set-key (vector (append modifiers '(left)))  'windmove-left)
+  (global-set-key (vector (append modifiers '(right))) 'windmove-right)
+  (global-set-key (vector (append modifiers '(up)))    'windmove-up)
+  (global-set-key (vector (append modifiers '(down)))  'windmove-down))
 
 
 (provide 'windmove)

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