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Avoid unnecessary keyboard grab/ungrab in char-mode

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* exwm-input.el (exwm-input--cache-event): Optimize the handling of
single event global key by not grabbing/ungrabbing the keyboard.
This commit is contained in:
Chris Feng 2018-11-25 00:00:00 +00:00
parent 786c2b4f7d
commit 38e343ff07
1 changed files with 8 additions and 7 deletions
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13
exwm-input.el
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@ -565,7 +565,7 @@ instead."
(cl-return-from exwm-input--translate translation))))) (cl-return-from exwm-input--translate translation)))))
key) key)
(defun exwm-input--cache-event (event) (defun exwm-input--cache-event (event &optional temp-line-mode)
"Cache EVENT." "Cache EVENT."
(setq exwm-input--line-mode-cache (setq exwm-input--line-mode-cache
(vconcat exwm-input--line-mode-cache (vector event))) (vconcat exwm-input--line-mode-cache (vector event)))
@ -575,8 +575,12 @@ instead."
;; When the key sequence is complete (not a keymap). ;; When the key sequence is complete (not a keymap).
;; Note that `exwm-input--line-mode-cache' might get translated to nil, for ;; Note that `exwm-input--line-mode-cache' might get translated to nil, for
;; example 'mouse--down-1-maybe-follows-link' does this. ;; example 'mouse--down-1-maybe-follows-link' does this.
(unless (and exwm-input--line-mode-cache (if (and exwm-input--line-mode-cache
(keymapp (key-binding exwm-input--line-mode-cache))) (keymapp (key-binding exwm-input--line-mode-cache)))
;; Grab keyboard temporarily to intercept the complete key sequence.
(when temp-line-mode
(setq exwm-input--temp-line-mode t)
(exwm-input--grab-keyboard))
(setq exwm-input--line-mode-cache nil) (setq exwm-input--line-mode-cache nil)
(when exwm-input--temp-line-mode (when exwm-input--temp-line-mode
(setq exwm-input--temp-line-mode nil) (setq exwm-input--temp-line-mode nil)
@ -652,10 +656,7 @@ Current buffer must be an `exwm-mode' buffer."
(setq event (exwm-input--mimic-read-event raw-event))) (setq event (exwm-input--mimic-read-event raw-event)))
(if (not (derived-mode-p 'exwm-mode)) (if (not (derived-mode-p 'exwm-mode))
(exwm-input--unread-event raw-event) (exwm-input--unread-event raw-event)
;; Grab keyboard temporarily. (exwm-input--cache-event event t)
(setq exwm-input--temp-line-mode t)
(exwm-input--grab-keyboard)
(exwm-input--cache-event event)
(exwm-input--unread-event raw-event))))) (exwm-input--unread-event raw-event)))))
(xcb:+request exwm--connection (xcb:+request exwm--connection
(make-instance 'xcb:AllowEvents (make-instance 'xcb:AllowEvents