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exwm/exwm.el
Chris Feng 97daba20ad Improve bc80eefe 
* exwm-layout.el (exwm-layout--set-frame-fullscreen):
* exwm-randr.el (exwm-randr--refresh):
* exwm-workspace.el (exwm-workspace--resize-minibuffer):
(exwm-workspace-switch):
* exwm.el (exwm--on-ClientMessage):
Calling `exwm-workspace-switch' in bc80eefe does not work correctly
sometimes.  This commit improves it by directly specify the geometry info
rather than getting it from Emacs frame.
2016-02-06 20:33:56 +08:00

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;;; exwm.el --- Emacs X Window Manager -*- lexical-binding: t -*-
;; Copyright (C) 2015-2016 Free Software Foundation, Inc.
;; Author: Chris Feng <chris.w.feng@gmail.com>
;; Maintainer: Chris Feng <chris.w.feng@gmail.com>
;; Version: 0.1
;; Package-Requires: ((xelb "0.3"))
;; Keywords: unix
;; URL: https://github.com/ch11ng/exwm
;; 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:
;; Overview
;; --------
;; EXWM (Emacs X Window Manager) is a full-featured tiling X window manager for
;; Emacs built on top of XELB. It features:
;; + Fully keyboard-driven operation
;; + Hybrid layout modes (tiling & stacking)
;; + Workspace support
;; + ICCCM/EWMH compliance
;; + Basic RandR support (optional)
;; Installation & configuration
;; ----------------------------
;; Here are the minimal steps to get EXWM working:
;; 1. Install XELB and EXWM, and make sure they are in `load-path'.
;; 2. In '~/.emacs', add following lines (please modify accordingly):
;;
;; (require 'exwm)
;; (require 'exwm-config)
;; (exwm-config-default)
;;
;; 3. Link or copy the file 'xinitrc' to '~/.xinitrc'.
;; 4. Launch EXWM in a console (e.g. tty1) with
;;
;; xinit -- vt01
;;
;; You should additionally hide the menu-bar, tool-bar, etc to increase the
;; usable space. Please check the wiki (https://github.com/ch11ng/exwm/wiki)
;; for more detailed instructions on installation, configuration, usage, etc.
;; References:
;; + dwm (http://dwm.suckless.org/)
;; + i3 wm (https://i3wm.org/)
;; + Also see references within each required library.
;;; Code:
(require 'server)
(require 'exwm-core)
(require 'exwm-workspace)
(require 'exwm-layout)
(require 'exwm-floating)
(require 'exwm-manage)
(require 'exwm-input)
(defun exwm-reset ()
"Reset window to standard state: non-fullscreen, line-mode."
(interactive)
(with-current-buffer (window-buffer)
(when (eq major-mode 'exwm-mode)
(when exwm--fullscreen (exwm-layout-unset-fullscreen))
;; Force refresh
(exwm-layout--refresh)
(exwm-input-grab-keyboard))))
;;;###autoload
(defun exwm--update-window-type (id &optional force)
"Update _NET_WM_WINDOW_TYPE."
(with-current-buffer (exwm--id->buffer id)
(unless (and exwm-window-type (not force))
(let ((reply (xcb:+request-unchecked+reply exwm--connection
(make-instance 'xcb:ewmh:get-_NET_WM_WINDOW_TYPE
:window id))))
(when reply ;nil when destroyed
(setq exwm-window-type (append (slot-value reply 'value) nil)))))))
(defvar exwm-update-class-hook nil
"Normal hook run when window class is updated.")
;;;###autoload
(defun exwm--update-class (id &optional force)
"Update WM_CLASS."
(with-current-buffer (exwm--id->buffer id)
(unless (and exwm-instance-name exwm-class-name (not force))
(let ((reply (xcb:+request-unchecked+reply exwm--connection
(make-instance 'xcb:icccm:get-WM_CLASS :window id))))
(when reply ;nil when destroyed
(setq exwm-instance-name (slot-value reply 'instance-name)
exwm-class-name (slot-value reply 'class-name))
(when (and exwm-instance-name exwm-class-name)
(run-hooks 'exwm-update-class-hook)))))))
(defvar exwm-update-title-hook nil
"Normal hook run when window title is updated.")
;;;###autoload
(defun exwm--update-utf8-title (id &optional force)
"Update _NET_WM_NAME."
(with-current-buffer (exwm--id->buffer id)
(when (or force (not exwm-title))
(let ((reply (xcb:+request-unchecked+reply exwm--connection
(make-instance 'xcb:ewmh:get-_NET_WM_NAME :window id))))
(when reply ;nil when destroyed
(setq exwm-title (slot-value reply 'value))
(when exwm-title
(setq exwm--title-is-utf8 t)
(run-hooks 'exwm-update-title-hook)))))))
;;;###autoload
(defun exwm--update-ctext-title (id &optional force)
"Update WM_NAME."
(with-current-buffer (exwm--id->buffer id)
(unless (or exwm--title-is-utf8
(and exwm-title (not force)))
(let ((reply (xcb:+request-unchecked+reply exwm--connection
(make-instance 'xcb:icccm:get-WM_NAME :window id))))
(when reply ;nil when destroyed
(setq exwm-title (slot-value reply 'value))
(when exwm-title
(run-hooks 'exwm-update-title-hook)))))))
;;;###autoload
(defun exwm--update-title (id)
"Update _NET_WM_NAME or WM_NAME."
(exwm--update-utf8-title id)
(exwm--update-ctext-title id))
;;;###autoload
(defun exwm--update-transient-for (id &optional force)
"Update WM_TRANSIENT_FOR."
(with-current-buffer (exwm--id->buffer id)
(unless (and exwm-transient-for (not force))
(let ((reply (xcb:+request-unchecked+reply exwm--connection
(make-instance 'xcb:icccm:get-WM_TRANSIENT_FOR
:window id))))
(when reply ;nil when destroyed
(setq exwm-transient-for (slot-value reply 'value)))))))
;;;###autoload
(defun exwm--update-normal-hints (id &optional force)
"Update WM_NORMAL_HINTS."
(with-current-buffer (exwm--id->buffer id)
(unless (and (not force)
(or exwm--normal-hints-x exwm--normal-hints-y
exwm--normal-hints-width exwm--normal-hints-height
exwm--normal-hints-min-width exwm--normal-hints-min-height
exwm--normal-hints-max-width exwm--normal-hints-max-height
;; FIXME: other fields
))
(let ((reply (xcb:+request-unchecked+reply exwm--connection
(make-instance 'xcb:icccm:get-WM_NORMAL_HINTS
:window id))))
(when (and reply (slot-value reply 'flags)) ;nil when destroyed
(with-slots (flags x y width height min-width min-height max-width
max-height base-width base-height ;; win-gravity
)
reply
(unless (= 0 (logand flags xcb:icccm:WM_SIZE_HINTS:USPosition))
(setq exwm--normal-hints-x x exwm--normal-hints-y y))
(unless (= 0 (logand flags xcb:icccm:WM_SIZE_HINTS:USSize))
(setq exwm--normal-hints-width width
exwm--normal-hints-height height))
(unless (= 0 (logand flags xcb:icccm:WM_SIZE_HINTS:PMinSize))
(setq exwm--normal-hints-min-width min-width
exwm--normal-hints-min-height min-height))
(unless (= 0 (logand flags xcb:icccm:WM_SIZE_HINTS:PMaxSize))
(setq exwm--normal-hints-max-width max-width
exwm--normal-hints-max-height max-height))
(unless (or exwm--normal-hints-min-width
(= 0 (logand flags xcb:icccm:WM_SIZE_HINTS:PBaseSize)))
(setq exwm--normal-hints-min-width base-width
exwm--normal-hints-min-height base-height))
;; (unless (= 0 (logand flags xcb:icccm:WM_SIZE_HINTS:PWinGravity))
;; (setq exwm--normal-hints-win-gravity win-gravity))
(setq exwm--fixed-size
(and exwm--normal-hints-min-width
exwm--normal-hints-min-height
exwm--normal-hints-max-width
exwm--normal-hints-max-height
(/= 0 exwm--normal-hints-min-width)
(/= 0 exwm--normal-hints-min-height)
(= exwm--normal-hints-min-width
exwm--normal-hints-max-width)
(= exwm--normal-hints-min-height
exwm--normal-hints-max-height)))))))))
;;;###autoload
(defun exwm--update-hints (id &optional force)
"Update WM_HINTS."
(with-current-buffer (exwm--id->buffer id)
(unless (and (not force) exwm--hints-input exwm--hints-urgency)
(let ((reply (xcb:+request-unchecked+reply exwm--connection
(make-instance 'xcb:icccm:get-WM_HINTS :window id))))
(when (and reply (slot-value reply 'flags)) ;nil when destroyed
(with-slots (flags input) reply
(when flags
(unless (= 0 (logand flags xcb:icccm:WM_HINTS:InputHint))
(setq exwm--hints-input (when input (= 1 input))))
(unless (= 0 (logand flags xcb:icccm:WM_HINTS:UrgencyHint))
(setq exwm--hints-urgency t))))
(when (and exwm--hints-urgency
(not (eq exwm--frame exwm-workspace--current)))
(unless (frame-parameter exwm--frame 'exwm--urgency)
(set-frame-parameter exwm--frame 'exwm--urgency t)
(setq exwm-workspace--switch-history-outdated t))))))))
;;;###autoload
(defun exwm--update-protocols (id &optional force)
"Update WM_PROTOCOLS."
(with-current-buffer (exwm--id->buffer id)
(unless (and exwm--protocols (not force))
(let ((reply (xcb:+request-unchecked+reply exwm--connection
(make-instance 'xcb:icccm:get-WM_PROTOCOLS
:window id))))
(when reply ;nil when destroyed
(setq exwm--protocols (append (slot-value reply 'value) nil)))))))
;;;###autoload
(defun exwm--update-state (id &optional force)
"Update WM_STATE."
(with-current-buffer (exwm--id->buffer id)
(unless (and exwm-state (not force))
(let ((reply (xcb:+request-unchecked+reply exwm--connection
(make-instance 'xcb:icccm:get-WM_STATE :window id))))
(when reply ;nil when destroyed
(setq exwm-state (or (slot-value reply 'state)
;; Default to normal state
xcb:icccm:WM_STATE:NormalState)))))))
(defun exwm--on-PropertyNotify (data _synthetic)
"Handle PropertyNotify event."
(let ((obj (make-instance 'xcb:PropertyNotify))
atom id buffer)
(xcb:unmarshal obj data)
(setq id (slot-value obj 'window)
atom (slot-value obj 'atom)
exwm-input--timestamp (slot-value obj 'time))
(setq buffer (exwm--id->buffer id))
(when (buffer-live-p buffer)
(with-current-buffer buffer
(cond ((= atom xcb:Atom:_NET_WM_WINDOW_TYPE)
(exwm--update-window-type id t))
((= atom xcb:Atom:WM_CLASS)
(exwm--update-class id t))
((= atom xcb:Atom:_NET_WM_NAME)
(exwm--update-utf8-title id t))
((= atom xcb:Atom:WM_NAME)
(exwm--update-ctext-title id t))
((= atom xcb:Atom:WM_TRANSIENT_FOR)
(exwm--update-transient-for id t))
((= atom xcb:Atom:WM_NORMAL_HINTS)
(exwm--update-normal-hints id t))
((= atom xcb:Atom:WM_HINTS)
(exwm--update-hints id t))
((= atom xcb:Atom:WM_PROTOCOLS)
(exwm--update-protocols id t))
((= atom xcb:Atom:WM_STATE)
(exwm--update-state id t))
((= atom xcb:Atom:_NET_WM_USER_TIME)) ;ignored
(t (exwm--log "Unhandled PropertyNotify: %s(%d)"
(x-get-atom-name atom exwm-workspace--current)
atom)))))))
(defun exwm--on-ClientMessage (raw-data _synthetic)
"Handle ClientMessage event."
(let ((obj (make-instance 'xcb:ClientMessage))
type id data)
(xcb:unmarshal obj raw-data)
(setq type (slot-value obj 'type)
id (slot-value obj 'window)
data (slot-value (slot-value obj 'data) 'data32))
(cond
;; _NET_WM_MOVERESIZE
((= type xcb:Atom:_NET_WM_MOVERESIZE)
(let ((direction (elt data 2))
(buffer (exwm--id->buffer id)))
(unless (and buffer (with-current-buffer buffer
(not exwm--floating-frame)))
(cond ((= direction
xcb:ewmh:_NET_WM_MOVERESIZE_SIZE_KEYBOARD)
;; FIXME
)
((= direction
xcb:ewmh:_NET_WM_MOVERESIZE_MOVE_KEYBOARD)
;; FIXME
)
((= direction xcb:ewmh:_NET_WM_MOVERESIZE_CANCEL)
(exwm-floating--stop-moveresize))
(t (exwm-floating--start-moveresize id direction))))))
;; _NET_REQUEST_FRAME_EXTENTS
((= type xcb:Atom:_NET_REQUEST_FRAME_EXTENTS)
(let ((buffer (exwm--id->buffer id))
left right top btm)
(if (or (not buffer)
(with-current-buffer buffer
(not exwm--floating-frame)))
(setq left 0 right 0 top 0 btm 0)
(setq left exwm-floating-border-width
right exwm-floating-border-width
top (+ exwm-floating-border-width (window-header-line-height))
btm (+ exwm-floating-border-width
(window-mode-line-height))))
(xcb:+request exwm--connection
(make-instance 'xcb:ewmh:set-_NET_FRAME_EXTENTS
:window id :left left :right right
:top top :bottom btm)))
(xcb:flush exwm--connection))
;; _NET_WM_STATE
((= type xcb:Atom:_NET_WM_STATE)
(let ((action (elt data 0))
(props (list (elt data 1) (elt data 2)))
(buffer (exwm--id->buffer id))
props-new)
;; only support _NET_WM_STATE_FULLSCREEN / _NET_WM_STATE_ADD for frames
(when (and (not buffer)
(memq xcb:Atom:_NET_WM_STATE_FULLSCREEN props)
(= action xcb:ewmh:_NET_WM_STATE_ADD))
(dolist (f exwm-workspace--list)
(when (equal (frame-parameter f 'exwm-outer-id) id)
(exwm-layout--set-frame-fullscreen f)
(xcb:+request
exwm--connection
(make-instance 'xcb:ewmh:set-_NET_WM_STATE
:window id
:data (vector
xcb:Atom:_NET_WM_STATE_FULLSCREEN)))
(xcb:flush exwm--connection))))
(when buffer ;ensure it's managed
(with-current-buffer buffer
;; _NET_WM_STATE_MODAL
(when (memq xcb:Atom:_NET_WM_STATE_MODAL props)
(cond ((= action xcb:ewmh:_NET_WM_STATE_ADD)
(unless exwm--floating-frame
(exwm-floating--set-floating id))
(push xcb:Atom:_NET_WM_STATE_MODAL props-new))
((= action xcb:ewmh:_NET_WM_STATE_REMOVE)
(when exwm--floating-frame
(exwm-floating--unset-floating id)))
((= action xcb:ewmh:_NET_WM_STATE_TOGGLE)
(if exwm--floating-frame
(exwm-floating--unset-floating id)
(exwm-floating--set-floating id)
(push xcb:Atom:_NET_WM_STATE_MODAL props-new)))))
;; _NET_WM_STATE_FULLSCREEN
(when (or (memq xcb:Atom:_NET_WM_STATE_FULLSCREEN props)
(memq xcb:Atom:_NET_WM_STATE_ABOVE props))
(cond ((= action xcb:ewmh:_NET_WM_STATE_ADD)
(unless exwm--fullscreen (exwm-layout-set-fullscreen id))
(push xcb:Atom:_NET_WM_STATE_FULLSCREEN props-new))
((= action xcb:ewmh:_NET_WM_STATE_REMOVE)
(when exwm--fullscreen (exwm-layout-unset-fullscreen id)))
((= action xcb:ewmh:_NET_WM_STATE_TOGGLE)
(if exwm--fullscreen
(exwm-layout-unset-fullscreen id)
(exwm-layout-set-fullscreen id)
(push xcb:Atom:_NET_WM_STATE_FULLSCREEN props-new)))))
;; _NET_WM_STATE_DEMANDS_ATTENTION
;; FIXME: check (may require other properties set)
(when (memq xcb:Atom:_NET_WM_STATE_DEMANDS_ATTENTION props)
(when (= action xcb:ewmh:_NET_WM_STATE_ADD)
(let ((idx (cl-position exwm--frame exwm-workspace--list)))
(unless (= idx exwm-workspace-current-index)
(set-frame-parameter exwm--frame 'exwm--urgency t)
(setq exwm-workspace--switch-history-outdated t))))
;; xcb:ewmh:_NET_WM_STATE_REMOVE?
;; xcb:ewmh:_NET_WM_STATE_TOGGLE?
)
(xcb:+request exwm--connection
(make-instance 'xcb:ewmh:set-_NET_WM_STATE
:window id :data (vconcat props-new)))
(xcb:flush exwm--connection)))))
((= type xcb:Atom:WM_PROTOCOLS)
(let ((type (elt data 0)))
(cond ((= type xcb:Atom:_NET_WM_PING)
(setq exwm-manage--ping-lock nil))
(t (exwm--log "Unhandled WM_PROTOCOLS of type: %d" type)))))
(t (exwm--log "Unhandled client message: %s" obj)))))
(defun exwm--init-icccm-ewmh ()
"Initialize ICCCM/EWMH support."
;; Handle PropertyNotify event
(xcb:+event exwm--connection 'xcb:PropertyNotify #'exwm--on-PropertyNotify)
;; Handle relevant client messages
;; FIXME: WM_STATE client messages (normal => iconic)
;; WM_COLORMAP_NOTIFY
(xcb:+event exwm--connection 'xcb:ClientMessage #'exwm--on-ClientMessage)
;; Set _NET_SUPPORTED
(xcb:+request exwm--connection
(make-instance 'xcb:ewmh:set-_NET_SUPPORTED
:window exwm--root
:data (vector xcb:Atom:_NET_SUPPORTED
xcb:Atom:_NET_CLIENT_LIST
xcb:Atom:_NET_CLIENT_LIST_STACKING
xcb:Atom:_NET_NUMBER_OF_DESKTOPS
xcb:Atom:_NET_DESKTOP_VIEWPORT
xcb:Atom:_NET_CURRENT_DESKTOP
xcb:Atom:_NET_WORKAREA
xcb:Atom:_NET_SUPPORTING_WM_CHECK
xcb:Atom:_NET_VIRTUAL_ROOTS
xcb:Atom:_NET_WM_MOVERESIZE
xcb:Atom:_NET_REQUEST_FRAME_EXTENTS
xcb:Atom:_NET_FRAME_EXTENTS
xcb:Atom:_NET_WM_NAME
;;
xcb:Atom:_NET_WM_WINDOW_TYPE
xcb:Atom:_NET_WM_WINDOW_TYPE_TOOLBAR
xcb:Atom:_NET_WM_WINDOW_TYPE_MENU
xcb:Atom:_NET_WM_WINDOW_TYPE_UTILITY
xcb:Atom:_NET_WM_WINDOW_TYPE_SPLASH
xcb:Atom:_NET_WM_WINDOW_TYPE_DIALOG
xcb:Atom:_NET_WM_WINDOW_TYPE_DROPDOWN_MENU
xcb:Atom:_NET_WM_WINDOW_TYPE_POPUP_MENU
xcb:Atom:_NET_WM_WINDOW_TYPE_TOOLTIP
xcb:Atom:_NET_WM_WINDOW_TYPE_NOTIFICATION
xcb:Atom:_NET_WM_WINDOW_TYPE_COMBO
xcb:Atom:_NET_WM_WINDOW_TYPE_DND
xcb:Atom:_NET_WM_WINDOW_TYPE_NORMAL
;;
xcb:Atom:_NET_WM_STATE
xcb:Atom:_NET_WM_STATE_MODAL
xcb:Atom:_NET_WM_STATE_FULLSCREEN
xcb:Atom:_NET_WM_STATE_DEMANDS_ATTENTION
;; FIXME: more?
)))
;; Create a child window for setting _NET_SUPPORTING_WM_CHECK
(let ((new-id (xcb:generate-id exwm--connection)))
(xcb:+request exwm--connection
(make-instance 'xcb:CreateWindow
:depth 0 :wid new-id :parent exwm--root
:x -1 :y -1 :width 1 :height 1
:border-width 0 :class xcb:WindowClass:CopyFromParent
:visual 0 :value-mask xcb:CW:OverrideRedirect
:override-redirect 1))
(dolist (i (list exwm--root new-id))
;; Set _NET_SUPPORTING_WM_CHECK
(xcb:+request exwm--connection
(make-instance 'xcb:ewmh:set-_NET_SUPPORTING_WM_CHECK
:window i :data new-id))
;; Set _NET_WM_NAME
(xcb:+request exwm--connection
(make-instance 'xcb:ewmh:set-_NET_WM_NAME
:window i :data "EXWM"))))
;; Set _NET_NUMBER_OF_DESKTOPS
(xcb:+request exwm--connection
(make-instance 'xcb:ewmh:set-_NET_NUMBER_OF_DESKTOPS
:window exwm--root :data exwm-workspace-number))
;; Set _NET_DESKTOP_VIEWPORT
(xcb:+request exwm--connection
(make-instance 'xcb:ewmh:set-_NET_DESKTOP_VIEWPORT
:window exwm--root
:data (make-vector (* 2 exwm-workspace-number) 0)))
;; Set _NET_WORKAREA (with minibuffer excluded)
(let* ((workareas
(vector 0 0 (x-display-pixel-width)
(- (x-display-pixel-height)
(if exwm-workspace-minibuffer-position
0
(window-pixel-height (minibuffer-window))))))
(workareas (mapconcat (lambda (_) workareas)
(make-list exwm-workspace-number 0) [])))
(xcb:+request exwm--connection
(make-instance 'xcb:ewmh:set-_NET_WORKAREA
:window exwm--root :data workareas)))
(xcb:flush exwm--connection))
(defvar exwm-init-hook nil
"Normal hook run when EXWM has just finished initialization.")
(defun exwm-init (&optional frame)
"Initialize EXWM."
(if (not (eq 'x (framep (or frame (selected-frame)))))
(exwm--log "Not running under X environment")
(unless exwm--connection
(exwm-enable 'undo) ;never initialize again
(setq exwm--connection (xcb:connect-to-socket))
(set-process-query-on-exit-flag (slot-value exwm--connection 'process)
nil) ;prevent query message on exit
(setq exwm--root
(slot-value (car (slot-value
(xcb:get-setup exwm--connection) 'roots))
'root))
(if (xcb:+request-checked+request-check exwm--connection
(make-instance 'xcb:ChangeWindowAttributes
:window exwm--root :value-mask xcb:CW:EventMask
:event-mask xcb:EventMask:SubstructureRedirect))
;; Other window manager is running
(progn (xcb:disconnect exwm--connection)
(setq exwm--connection nil)
(exwm--log "Other window manager detected"))
;; Disable some features not working well with EXWM
(setq use-dialog-box nil)
;; Initialize ICCCM/EWMH support
;; (xcb:icccm:init exwm--connection)
(xcb:ewmh:init exwm--connection)
(exwm--lock)
(exwm--init-icccm-ewmh)
(exwm-layout--init)
(exwm-floating--init)
(exwm-manage--init)
(exwm-workspace--init)
(exwm-input--init)
(exwm--unlock)
;; Manage existing windows
(exwm-manage--scan)
(run-hooks 'exwm-init-hook)))))
(defvar exwm-blocking-subrs '(x-file-dialog x-popup-dialog x-select-font)
"Subrs (primitives) that would normally block EXWM.")
(defun exwm-enable (&optional undo)
"Enable/Disable EXWM."
(pcase undo
(`undo ;prevent reinitialization
(remove-hook 'window-setup-hook #'exwm-init)
(remove-hook 'after-make-frame-functions #'exwm-init))
(`undo-all ;attempt to revert everything
(remove-hook 'window-setup-hook #'exwm-init)
(remove-hook 'after-make-frame-functions #'exwm-init)
(remove-hook 'kill-emacs-hook #'exwm--server-stop)
(dolist (i exwm-blocking-subrs)
(advice-remove i #'exwm--server-eval-at)))
(_ ;enable EXWM
(setq frame-resize-pixelwise t) ;mandatory; before init
(add-hook 'window-setup-hook #'exwm-init t) ;for Emacs
(add-hook 'after-make-frame-functions #'exwm-init t) ;for Emacs Client
(add-hook 'kill-emacs-hook #'exwm--server-stop)
(dolist (i exwm-blocking-subrs)
(advice-add i :around #'exwm--server-eval-at)))))
(defconst exwm--server-name "server-exwm"
"Name of the subordinate Emacs server.")
(defvar exwm--server-process nil "Process of the subordinate Emacs server.")
(defun exwm--server-stop ()
"Stop the subordinate Emacs server."
(server-force-delete exwm--server-name)
(when exwm--server-process
(delete-process exwm--server-process)
(setq exwm--server-process nil)))
(defun exwm--server-eval-at (&rest args)
"Wrapper of `server-eval-at' used to advice subrs."
;; Start the subordinate Emacs server if it's not alive
(unless (server-running-p exwm--server-name)
(when exwm--server-process (delete-process exwm--server-process))
(setq exwm--server-process
(start-process exwm--server-name
nil
(car command-line-args) ;The executable file
"-d" x-display-name
"-Q"
(concat "--daemon=" exwm--server-name)
"--eval"
;; Create an invisible frame
"(make-frame '((window-system . x) (visibility)))"))
(while (not (server-running-p exwm--server-name))
(sit-for 0.001)))
(server-eval-at
exwm--server-name
`(progn (select-frame (car (frame-list)))
(let ((result ,(nconc (list (make-symbol (subr-name (car args))))
(cdr args))))
(pcase (type-of result)
;; Return the name of a buffer
(`buffer (buffer-name result))
;; We blindly convert all font objects to their XLFD names. This
;; might cause problems of course, but it still has a chance to
;; work (whereas directly passing font objects would merely
;; raise errors).
((or `font-entity `font-object `font-spec)
(font-xlfd-name result))
;; Passing following types makes little sense
((or `compiled-function `finalizer `frame `hash-table `marker
`overlay `process `window `window-configuration))
;; Passing the name of a subr
(`subr (make-symbol (subr-name result)))
;; For other types, return the value as-is.
(t result))))))
(define-obsolete-function-alias 'exwm-enable-ido-workaround 'exwm-config-ido
"25.1" "Enable workarounds for Ido.")
(defun exwm-disable-ido-workaround ()
"This function does nothing actually."
(declare (obsolete nil "25.1")))
(provide 'exwm)
;;; exwm.el ends here
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