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Support monitor mirroring

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* exwm-randr.el (exwm-randr--get-monitors): Also return an alist of
monitor name aliases.
(exwm-randr-refresh): Unify mirrored monitor names.
This commit is contained in:
Chris Feng 2019-03-24 00:00:00 +00:00
parent 73b4d6f966
commit bd99d8cf7f
1 changed files with 36 additions and 8 deletions
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44
exwm-randr.el
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@ -101,7 +101,8 @@ corresponding monitors whenever the monitors are active.
(defun exwm-randr--get-monitors () (defun exwm-randr--get-monitors ()
"Get RandR monitors." "Get RandR monitors."
(exwm--log) (exwm--log)
(let (monitor-name geometry monitor-plist primary-monitor) (let (monitor-name geometry monitor-geometry-alist primary-monitor
monitor-position-alist monitor-alias-alist)
(with-slots (timestamp monitors) (with-slots (timestamp monitors)
(xcb:+request-unchecked+reply exwm--connection (xcb:+request-unchecked+reply exwm--connection
(make-instance 'xcb:randr:GetMonitors (make-instance 'xcb:randr:GetMonitors
@ -117,14 +118,36 @@ corresponding monitors whenever the monitors are active.
:y y :y y
:width width :width width
:height height) :height height)
monitor-plist (plist-put monitor-plist monitor-name geometry)) monitor-geometry-alist (cons (cons monitor-name geometry)
monitor-geometry-alist))
(exwm--log "%s: %sx%s+%s+%s" monitor-name x y width height) (exwm--log "%s: %sx%s+%s+%s" monitor-name x y width height)
;; Save primary monitor when available (fallback to the first one). ;; Save primary monitor when available (fallback to the first one).
(when (or (/= 0 primary) (when (or (/= 0 primary)
(not primary-monitor)) (not primary-monitor))
(setq primary-monitor monitor-name))))) (setq primary-monitor monitor-name)))))
(exwm--log "Primary monitor: %s" primary-monitor) (exwm--log "Primary monitor: %s" primary-monitor)
(list primary-monitor monitor-plist))) ;; In a mirroring setup some monitors overlap and should be treated
;; as one.
(setq monitor-position-alist (with-slots (x y)
(cdr (assoc primary-monitor
monitor-geometry-alist))
(list (cons primary-monitor (vector x y)))))
(setq monitor-alias-alist (list (cons primary-monitor primary-monitor)))
(dolist (pair monitor-geometry-alist)
(setq monitor-name (car pair)
geometry (cdr pair))
(unless (assoc monitor-name monitor-alias-alist)
(let* ((position (vector (slot-value geometry 'x)
(slot-value geometry 'y)))
(alias (car (rassoc position monitor-position-alist))))
(if alias
(setq monitor-alias-alist (cons (cons monitor-name alias)
monitor-alias-alist))
(setq monitor-position-alist (cons (cons monitor-name position)
monitor-position-alist)
monitor-alias-alist (cons (cons monitor-name monitor-name)
monitor-alias-alist))))))
(list primary-monitor monitor-geometry-alist monitor-alias-alist)))
;;;###autoload ;;;###autoload
(defun exwm-randr-refresh () (defun exwm-randr-refresh ()
@ -133,20 +156,25 @@ corresponding monitors whenever the monitors are active.
(exwm--log) (exwm--log)
(let* ((result (exwm-randr--get-monitors)) (let* ((result (exwm-randr--get-monitors))
(primary-monitor (elt result 0)) (primary-monitor (elt result 0))
(monitor-plist (elt result 1)) (monitor-geometry-alist (elt result 1))
(monitor-alias-alist (elt result 2))
container-monitor-alist container-frame-alist) container-monitor-alist container-frame-alist)
(when (and primary-monitor monitor-plist) (when (and primary-monitor monitor-geometry-alist)
(when exwm-workspace--fullscreen-frame-count (when exwm-workspace--fullscreen-frame-count
;; Not all workspaces are fullscreen; reset this counter. ;; Not all workspaces are fullscreen; reset this counter.
(setq exwm-workspace--fullscreen-frame-count 0)) (setq exwm-workspace--fullscreen-frame-count 0))
(dotimes (i (exwm-workspace--count)) (dotimes (i (exwm-workspace--count))
(let* ((monitor (plist-get exwm-randr-workspace-monitor-plist i)) (let* ((monitor (plist-get exwm-randr-workspace-monitor-plist i))
(geometry (lax-plist-get monitor-plist monitor)) (geometry (cdr (assoc monitor monitor-geometry-alist)))
(frame (elt exwm-workspace--list i)) (frame (elt exwm-workspace--list i))
(container (frame-parameter frame 'exwm-container))) (container (frame-parameter frame 'exwm-container)))
(unless geometry (if geometry
;; Unify monitor names in case it's a mirroring setup.
(setq monitor (cdr (assoc monitor monitor-alias-alist)))
;; Missing monitors fallback to the primary one.
(setq monitor primary-monitor (setq monitor primary-monitor
geometry (lax-plist-get monitor-plist primary-monitor))) geometry (cdr (assoc primary-monitor
monitor-geometry-alist))))
(setq container-monitor-alist (nconc (setq container-monitor-alist (nconc
`((,container . ,(intern monitor))) `((,container . ,(intern monitor)))
container-monitor-alist) container-monitor-alist)