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Diffstat (limited to 'third_party/emacs/exwm/exwm-randr.el')
| -rw-r--r-- | third_party/emacs/exwm/exwm-randr.el | 375 |
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diff --git a/third_party/emacs/exwm/exwm-randr.el b/third_party/emacs/exwm/exwm-randr.el deleted file mode 100644 index 7acceb1324de..000000000000 --- a/third_party/emacs/exwm/exwm-randr.el +++ /dev/null @@ -1,375 +0,0 @@ -;;; exwm-randr.el --- RandR Module for EXWM -*- lexical-binding: t -*- - -;; Copyright (C) 2015-2020 Free Software Foundation, Inc. - -;; Author: Chris Feng <chris.w.feng@gmail.com> - -;; This file is part of GNU Emacs. - -;; GNU Emacs is free software: you can redistribute it and/or modify -;; it under the terms of the GNU General Public License as published by -;; the Free Software Foundation, either version 3 of the License, or -;; (at your option) any later version. - -;; GNU Emacs is distributed in the hope that it will be useful, -;; but WITHOUT ANY WARRANTY; without even the implied warranty of -;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -;; GNU General Public License for more details. - -;; You should have received a copy of the GNU General Public License -;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. - -;;; Commentary: - -;; This module adds RandR support for EXWM. Currently it requires external -;; tools such as xrandr(1) to properly configure RandR first. This -;; dependency may be removed in the future, but more work is needed before -;; that. - -;; To use this module, load, enable it and configure -;; `exwm-randr-workspace-monitor-plist' and `exwm-randr-screen-change-hook' -;; as follows: -;; -;; (require 'exwm-randr) -;; (setq exwm-randr-workspace-monitor-plist '(0 "VGA1")) -;; (add-hook 'exwm-randr-screen-change-hook -;; (lambda () -;; (start-process-shell-command -;; "xrandr" nil "xrandr --output VGA1 --left-of LVDS1 --auto"))) -;; (exwm-randr-enable) -;; -;; With above lines, workspace 0 should be assigned to the output named "VGA1", -;; staying at the left of other workspaces on the output "LVDS1". Please refer -;; to xrandr(1) for the configuration of RandR. - -;; References: -;; + RandR (http://www.x.org/archive/X11R7.7/doc/randrproto/randrproto.txt) - -;;; Code: - -(require 'xcb-randr) - -(require 'exwm-core) -(require 'exwm-workspace) - -(defgroup exwm-randr nil - "RandR." - :version "25.3" - :group 'exwm) - -(defcustom exwm-randr-refresh-hook nil - "Normal hook run when the RandR module just refreshed." - :type 'hook) - -(defcustom exwm-randr-screen-change-hook nil - "Normal hook run when screen changes." - :type 'hook) - -(defcustom exwm-randr-workspace-monitor-plist nil - "Plist mapping workspaces to monitors. - -In RandR 1.5 a monitor is a rectangle region decoupled from the physical -size of screens, and can be identified with `xrandr --listmonitors' (name of -the primary monitor is prefixed with an `*'). When no monitor is created it -automatically fallback to RandR 1.2 output which represents the physical -screen size. RandR 1.5 monitors can be created with `xrandr --setmonitor'. -For example, to split an output (`LVDS-1') of size 1280x800 into two -side-by-side monitors one could invoke (the digits after `/' are size in mm) - - xrandr --setmonitor *LVDS-1-L 640/135x800/163+0+0 LVDS-1 - xrandr --setmonitor LVDS-1-R 640/135x800/163+640+0 none - -If a monitor is not active, the workspaces mapped to it are displayed on the -primary monitor until it becomes active (if ever). Unspecified workspaces -are all mapped to the primary monitor. For example, with the following -setting workspace other than 1 and 3 would always be displayed on the -primary monitor where workspace 1 and 3 would be displayed on their -corresponding monitors whenever the monitors are active. - - \\='(1 \"HDMI-1\" 3 \"DP-1\")" - :type '(plist :key-type integer :value-type string)) - -(with-no-warnings - (define-obsolete-variable-alias 'exwm-randr-workspace-output-plist - 'exwm-randr-workspace-monitor-plist "27.1")) - -(defvar exwm-randr--last-timestamp 0 "Used for debouncing events.") - -(defvar exwm-randr--prev-screen-change-seqnum nil - "The most recent ScreenChangeNotify sequence number.") - -(defvar exwm-randr--compatibility-mode nil - "Non-nil when the server does not support RandR 1.5 protocol.") - -(defun exwm-randr--get-monitors () - "Get RandR 1.5 monitors." - (exwm--log) - (let (monitor-name geometry monitor-geometry-alist primary-monitor) - (with-slots (timestamp monitors) - (xcb:+request-unchecked+reply exwm--connection - (make-instance 'xcb:randr:GetMonitors - :window exwm--root - :get-active 1)) - (when (> timestamp exwm-randr--last-timestamp) - (setq exwm-randr--last-timestamp timestamp)) - (dolist (monitor monitors) - (with-slots (name primary x y width height) monitor - (setq monitor-name (x-get-atom-name name) - geometry (make-instance 'xcb:RECTANGLE - :x x - :y y - :width width - :height height) - monitor-geometry-alist (cons (cons monitor-name geometry) - monitor-geometry-alist)) - (exwm--log "%s: %sx%s+%s+%s" monitor-name x y width height) - ;; Save primary monitor when available (fallback to the first one). - (when (or (/= 0 primary) - (not primary-monitor)) - (setq primary-monitor monitor-name))))) - (exwm--log "Primary monitor: %s" primary-monitor) - (list primary-monitor monitor-geometry-alist - (exwm-randr--get-monitor-alias primary-monitor - monitor-geometry-alist)))) - -(defun exwm-randr--get-outputs () - "Get RandR 1.2 outputs. - -Only used when RandR 1.5 is not supported by the server." - (exwm--log) - (let (output-name geometry output-geometry-alist primary-output) - (with-slots (config-timestamp outputs) - (xcb:+request-unchecked+reply exwm--connection - (make-instance 'xcb:randr:GetScreenResourcesCurrent - :window exwm--root)) - (when (> config-timestamp exwm-randr--last-timestamp) - (setq exwm-randr--last-timestamp config-timestamp)) - (dolist (output outputs) - (with-slots (crtc connection name) - (xcb:+request-unchecked+reply exwm--connection - (make-instance 'xcb:randr:GetOutputInfo - :output output - :config-timestamp config-timestamp)) - (when (and (= connection xcb:randr:Connection:Connected) - (/= crtc 0)) - (with-slots (x y width height) - (xcb:+request-unchecked+reply exwm--connection - (make-instance 'xcb:randr:GetCrtcInfo - :crtc crtc - :config-timestamp config-timestamp)) - (setq output-name (decode-coding-string - (apply #'unibyte-string name) 'utf-8) - geometry (make-instance 'xcb:RECTANGLE - :x x - :y y - :width width - :height height) - output-geometry-alist (cons (cons output-name geometry) - output-geometry-alist)) - (exwm--log "%s: %sx%s+%s+%s" output-name x y width height) - ;; The primary output is the first one. - (unless primary-output - (setq primary-output output-name))))))) - (exwm--log "Primary output: %s" primary-output) - (list primary-output output-geometry-alist - (exwm-randr--get-monitor-alias primary-output - output-geometry-alist)))) - -(defun exwm-randr--get-monitor-alias (primary-monitor monitor-geometry-alist) - "Generate monitor aliases using PRIMARY-MONITOR MONITOR-GEOMETRY-ALIST. - -In a mirroring setup some monitors overlap and should be treated as one." - (let (monitor-position-alist monitor-alias-alist monitor-name geometry) - (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)))))) - monitor-alias-alist)) - -;;;###autoload -(defun exwm-randr-refresh () - "Refresh workspaces according to the updated RandR info." - (interactive) - (exwm--log) - (let* ((result (if exwm-randr--compatibility-mode - (exwm-randr--get-outputs) - (exwm-randr--get-monitors))) - (primary-monitor (elt result 0)) - (monitor-geometry-alist (elt result 1)) - (monitor-alias-alist (elt result 2)) - container-monitor-alist container-frame-alist) - (when (and primary-monitor monitor-geometry-alist) - (when exwm-workspace--fullscreen-frame-count - ;; Not all workspaces are fullscreen; reset this counter. - (setq exwm-workspace--fullscreen-frame-count 0)) - (dotimes (i (exwm-workspace--count)) - (let* ((monitor (plist-get exwm-randr-workspace-monitor-plist i)) - (geometry (cdr (assoc monitor monitor-geometry-alist))) - (frame (elt exwm-workspace--list i)) - (container (frame-parameter frame 'exwm-container))) - (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 - geometry (cdr (assoc primary-monitor - monitor-geometry-alist)))) - (setq container-monitor-alist (nconc - `((,container . ,(intern monitor))) - container-monitor-alist) - container-frame-alist (nconc `((,container . ,frame)) - container-frame-alist)) - (set-frame-parameter frame 'exwm-randr-monitor monitor) - (set-frame-parameter frame 'exwm-geometry geometry))) - ;; Update workareas. - (exwm-workspace--update-workareas) - ;; Resize workspace. - (dolist (f exwm-workspace--list) - (exwm-workspace--set-fullscreen f)) - (xcb:flush exwm--connection) - ;; Raise the minibuffer if it's active. - (when (and (active-minibuffer-window) - (exwm-workspace--minibuffer-own-frame-p)) - (exwm-workspace--show-minibuffer)) - ;; Set _NET_DESKTOP_GEOMETRY. - (exwm-workspace--set-desktop-geometry) - ;; Update active/inactive workspaces. - (dolist (w exwm-workspace--list) - (exwm-workspace--set-active w nil)) - ;; Mark the workspace on the top of each monitor as active. - (dolist (xwin - (reverse - (slot-value (xcb:+request-unchecked+reply exwm--connection - (make-instance 'xcb:QueryTree - :window exwm--root)) - 'children))) - (let ((monitor (cdr (assq xwin container-monitor-alist)))) - (when monitor - (setq container-monitor-alist - (rassq-delete-all monitor container-monitor-alist)) - (exwm-workspace--set-active (cdr (assq xwin container-frame-alist)) - t)))) - (xcb:flush exwm--connection) - (run-hooks 'exwm-randr-refresh-hook)))) - -(define-obsolete-function-alias 'exwm-randr--refresh #'exwm-randr-refresh - "27.1") - -(defun exwm-randr--on-ScreenChangeNotify (data _synthetic) - "Handle `ScreenChangeNotify' event. - -Run `exwm-randr-screen-change-hook' (usually user scripts to configure RandR)." - (exwm--log) - (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) - "Handle `CrtcChangeNotify' and `OutputChangeNotify' events. - -Refresh when any CRTC/output changes." - (exwm--log) - (let ((evt (make-instance 'xcb:randr:Notify)) - notify) - (xcb:unmarshal evt data) - (with-slots (subCode u) evt - (cl-case subCode - (xcb:randr:Notify:CrtcChange - (setq notify (slot-value u 'cc))) - (xcb:randr:Notify:OutputChange - (setq notify (slot-value u 'oc)))) - (when notify - (with-slots (timestamp) notify - (when (> timestamp exwm-randr--last-timestamp) - (exwm-randr-refresh) - (setq exwm-randr--last-timestamp timestamp))))))) - -(defun exwm-randr--on-ConfigureNotify (data _synthetic) - "Handle `ConfigureNotify' event. - -Refresh when any RandR 1.5 monitor changes." - (exwm--log) - (let ((evt (make-instance 'xcb:ConfigureNotify))) - (xcb:unmarshal evt data) - (with-slots (window) evt - (when (eq window exwm--root) - (exwm-randr-refresh))))) - -(defun exwm-randr--init () - "Initialize RandR extension and EXWM RandR module." - (exwm--log) - (when (= 0 (slot-value (xcb:get-extension-data exwm--connection 'xcb:randr) - 'present)) - (error "[EXWM] RandR extension is not supported by the server")) - (with-slots (major-version minor-version) - (xcb:+request-unchecked+reply exwm--connection - (make-instance 'xcb:randr:QueryVersion - :major-version 1 :minor-version 5)) - (cond ((and (= major-version 1) (= minor-version 5)) - (setq exwm-randr--compatibility-mode nil)) - ((and (= major-version 1) (>= minor-version 2)) - (setq exwm-randr--compatibility-mode t)) - (t - (error "[EXWM] The server only support RandR version up to %d.%d" - major-version minor-version))) - ;; External monitor(s) may already be connected. - (run-hooks 'exwm-randr-screen-change-hook) - (exwm-randr-refresh) - ;; Listen for `ScreenChangeNotify' to notify external tools to - ;; configure RandR and `CrtcChangeNotify/OutputChangeNotify' to - ;; refresh the workspace layout. - (xcb:+event exwm--connection 'xcb:randr:ScreenChangeNotify - #'exwm-randr--on-ScreenChangeNotify) - (xcb:+event exwm--connection 'xcb:randr:Notify - #'exwm-randr--on-Notify) - (xcb:+event exwm--connection 'xcb:ConfigureNotify - #'exwm-randr--on-ConfigureNotify) - (xcb:+request exwm--connection - (make-instance 'xcb:randr:SelectInput - :window exwm--root - :enable (logior - xcb:randr:NotifyMask:ScreenChange - xcb:randr:NotifyMask:CrtcChange - xcb:randr:NotifyMask:OutputChange))) - (xcb:flush exwm--connection) - (add-hook 'exwm-workspace-list-change-hook #'exwm-randr-refresh)) - ;; Prevent frame parameters introduced by this module from being - ;; saved/restored. - (dolist (i '(exwm-randr-monitor)) - (unless (assq i frameset-filter-alist) - (push (cons i :never) frameset-filter-alist)))) - -(defun exwm-randr--exit () - "Exit the RandR module." - (exwm--log) - (remove-hook 'exwm-workspace-list-change-hook #'exwm-randr-refresh)) - -(defun exwm-randr-enable () - "Enable RandR support for EXWM." - (exwm--log) - (add-hook 'exwm-init-hook #'exwm-randr--init) - (add-hook 'exwm-exit-hook #'exwm-randr--exit)) - - - -(provide 'exwm-randr) - -;;; exwm-randr.el ends here |