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Avoid unnecessary focus changes when creating/killing buffers

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* exwm-input.el (exwm-input--skip-buffer-list-update): New internal
variable for skipping the next 'buffer-list-update'.
(exwm-input--on-buffer-list-update): Skip when
`exwm-input--skip-buffer-list-update` is set.

* exwm-manage.el (exwm-manage--manage-window): Set
`exwm-input--skip-buffer-list-update` when creating/killing buffers.
This commit is contained in:
Chris Feng 2018-12-16 00:00:00 +00:00
parent e6892216a6
commit 2efd7495d9
2 changed files with 9 additions and 2 deletions
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4
exwm-input.el
View file

@ -117,6 +117,9 @@ defined in `exwm-mode-map' here."
(defvar exwm-input--simulation-keys nil "Simulation keys in line-mode.")
(defvar exwm-input--skip-buffer-list-update nil
"Skip the upcoming 'buffer-list-update'.")
(defvar exwm-input--temp-line-mode nil
"Non-nil indicates it's in temporary line-mode for char-mode.")
@ -264,6 +267,7 @@ ARGS are additional arguments to CALLBACK."
(defun exwm-input--on-buffer-list-update ()
"Run in `buffer-list-update-hook' to track input focus."
(when (and (not (eq this-command #'handle-switch-frame))
(not exwm-input--skip-buffer-list-update)
(not (exwm-workspace--client-p))
;; The following conditions filter out events relating to temp
;; buffers.

7
exwm-manage.el
View file

@ -91,6 +91,7 @@ You can still make the X windows floating afterwards."
(defvar exwm-manage--ping-lock nil
"Non-nil indicates EXWM is pinging a window.")
(defvar exwm-input--skip-buffer-list-update)
(defvar exwm-input-prefix-keys)
(defvar exwm-workspace--current)
(defvar exwm-workspace--id-struts-alist)
@ -201,7 +202,8 @@ You can still make the X windows floating afterwards."
(make-instance 'xcb:ChangeSaveSet
:mode xcb:SetMode:Insert
:window id))
(with-current-buffer (generate-new-buffer "*EXWM*")
(with-current-buffer (let ((exwm-input--skip-buffer-list-update t))
(generate-new-buffer "*EXWM*"))
;; Keep the oldest X window first.
(setq exwm--id-buffer-alist
(nconc exwm--id-buffer-alist `((,id . ,(current-buffer)))))
@ -284,7 +286,8 @@ You can still make the X windows floating afterwards."
:stack-mode xcb:StackMode:Below)))
(xcb:flush exwm--connection)
(setq exwm--id-buffer-alist (assq-delete-all id exwm--id-buffer-alist))
(let ((kill-buffer-query-functions nil))
(let ((kill-buffer-query-functions nil)
(exwm-input--skip-buffer-list-update t))
(kill-buffer (current-buffer)))
(throw 'return 'ignored))
(let ((index (plist-get exwm--configurations 'workspace)))