Only call exwm-randr-screen-change-hook on new event sequence number

Multiple event callbacks are triggered per physical monitor plug event.
This de-duplicates the events triggering the running of the hook.
This commit is contained in:
James Ferguson 2018-12-03 11:25:11 -05:00
parent 58f7916619
commit e6892216a6

View file

@ -95,6 +95,8 @@ corresponding monitors whenever the monitors are active.
(defvar exwm-workspace--fullscreen-frame-count) (defvar exwm-workspace--fullscreen-frame-count)
(defvar exwm-workspace--list) (defvar exwm-workspace--list)
(defvar exwm-randr--prev-screen-change-seqnum nil
"The most recent ScreenChangeNotify sequence number.")
(declare-function exwm-workspace--count "exwm-workspace.el") (declare-function exwm-workspace--count "exwm-workspace.el")
(declare-function exwm-workspace--set-active "exwm-workspace.el" (declare-function exwm-workspace--set-active "exwm-workspace.el"
(frame active)) (frame active))
@ -193,12 +195,17 @@ corresponding monitors whenever the monitors are active.
(define-obsolete-function-alias 'exwm-randr--refresh #'exwm-randr-refresh (define-obsolete-function-alias 'exwm-randr--refresh #'exwm-randr-refresh
"27.1") "27.1")
(defun exwm-randr--on-ScreenChangeNotify (_data _synthetic) (defun exwm-randr--on-ScreenChangeNotify (data _synthetic)
"Handle `ScreenChangeNotify' event. "Handle `ScreenChangeNotify' event.
Run `exwm-randr-screen-change-hook' (usually user scripts to configure RandR)." Run `exwm-randr-screen-change-hook' (usually user scripts to configure RandR)."
(exwm--log) (exwm--log)
(run-hooks 'exwm-randr-screen-change-hook)) (let ((evt (make-instance 'xcb:randr:ScreenChangeNotify)))
(xcb:unmarshal evt data)
(let ((seqnum (slot-value evt '~sequence)))
(unless (equal seqnum exwm-randr--prev-screen-change-seqnum)
(setq exwm-randr--prev-screen-change-seqnum seqnum)
(run-hooks 'exwm-randr-screen-change-hook)))))
(defun exwm-randr--on-Notify (data _synthetic) (defun exwm-randr--on-Notify (data _synthetic)
"Handle `CrtcChangeNotify' and `OutputChangeNotify' events. "Handle `CrtcChangeNotify' and `OutputChangeNotify' events.