mirror of
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625 lines
28 KiB
EmacsLisp
625 lines
28 KiB
EmacsLisp
;;; exwm.el --- Emacs X Window Manager -*- lexical-binding: t -*-
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;; Copyright (C) 2015-2016 Free Software Foundation, Inc.
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;; Author: Chris Feng <chris.w.feng@gmail.com>
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;; Maintainer: Chris Feng <chris.w.feng@gmail.com>
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;; Version: 0.5
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;; Package-Requires: ((xelb "0.8"))
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;; Keywords: unix
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;; URL: https://github.com/ch11ng/exwm
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;; This file is part of GNU Emacs.
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;; GNU Emacs is free software: you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation, either version 3 of the License, or
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;; (at your option) any later version.
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;; GNU Emacs is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
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;;; Commentary:
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;; Overview
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;; --------
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;; EXWM (Emacs X Window Manager) is a full-featured tiling X window manager for
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;; Emacs built on top of XELB. It features:
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;; + Fully keyboard-driven operations
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;; + Hybrid layout modes (tiling & stacking)
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;; + Workspace support
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;; + ICCCM/EWMH compliance
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;; ++ (Optional) RandR (multi-monitor) support
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;; ++ (Optional) system tray
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;; Installation & configuration
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;; ----------------------------
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;; Here are the minimal steps to get EXWM working:
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;; 1. Install XELB and EXWM, and make sure they are in `load-path'.
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;; 2. In '~/.emacs', add following lines (please modify accordingly):
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;;
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;; (require 'exwm)
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;; (require 'exwm-config)
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;; (exwm-config-default)
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;;
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;; 3. Link or copy the file 'xinitrc' to '~/.xinitrc'.
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;; 4. Launch EXWM in a console (e.g. tty1) with
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;;
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;; xinit -- vt01
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;;
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;; You should additionally hide the menu-bar, tool-bar, etc to increase the
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;; usable space. Please check the wiki (https://github.com/ch11ng/exwm/wiki)
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;; for more detailed instructions on installation, configuration, usage, etc.
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;; References:
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;; + dwm (http://dwm.suckless.org/)
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;; + i3 wm (https://i3wm.org/)
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;; + Also see references within each required library.
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;;; Code:
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(require 'server)
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(require 'exwm-core)
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(require 'exwm-workspace)
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(require 'exwm-layout)
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(require 'exwm-floating)
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(require 'exwm-manage)
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(require 'exwm-input)
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;;;###autoload
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(defun exwm-reset ()
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"Reset window to standard state: non-fullscreen, line-mode."
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(interactive)
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(with-current-buffer (window-buffer)
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(when (eq major-mode 'exwm-mode)
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(when exwm--fullscreen (exwm-layout-unset-fullscreen))
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;; Force refresh
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(exwm-layout--refresh)
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(call-interactively #'exwm-input-grab-keyboard))))
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(defun exwm--update-window-type (id &optional force)
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"Update _NET_WM_WINDOW_TYPE."
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(with-current-buffer (exwm--id->buffer id)
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(unless (and exwm-window-type (not force))
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(let ((reply (xcb:+request-unchecked+reply exwm--connection
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(make-instance 'xcb:ewmh:get-_NET_WM_WINDOW_TYPE
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:window id))))
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(when reply ;nil when destroyed
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(setq exwm-window-type (append (slot-value reply 'value) nil)))))))
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(defvar exwm-update-class-hook nil
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"Normal hook run when window class is updated.")
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(defun exwm--update-class (id &optional force)
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"Update WM_CLASS."
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(with-current-buffer (exwm--id->buffer id)
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(unless (and exwm-instance-name exwm-class-name (not force))
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(let ((reply (xcb:+request-unchecked+reply exwm--connection
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(make-instance 'xcb:icccm:get-WM_CLASS :window id))))
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(when reply ;nil when destroyed
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(setq exwm-instance-name (slot-value reply 'instance-name)
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exwm-class-name (slot-value reply 'class-name))
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(when (and exwm-instance-name exwm-class-name)
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(run-hooks 'exwm-update-class-hook)))))))
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(defvar exwm-update-title-hook nil
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"Normal hook run when window title is updated.")
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(defun exwm--update-utf8-title (id &optional force)
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"Update _NET_WM_NAME."
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(with-current-buffer (exwm--id->buffer id)
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(when (or force (not exwm-title))
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(let ((reply (xcb:+request-unchecked+reply exwm--connection
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(make-instance 'xcb:ewmh:get-_NET_WM_NAME :window id))))
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(when reply ;nil when destroyed
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(setq exwm-title (slot-value reply 'value))
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(when exwm-title
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(setq exwm--title-is-utf8 t)
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(run-hooks 'exwm-update-title-hook)))))))
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(defun exwm--update-ctext-title (id &optional force)
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"Update WM_NAME."
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(with-current-buffer (exwm--id->buffer id)
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(unless (or exwm--title-is-utf8
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(and exwm-title (not force)))
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(let ((reply (xcb:+request-unchecked+reply exwm--connection
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(make-instance 'xcb:icccm:get-WM_NAME :window id))))
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(when reply ;nil when destroyed
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(setq exwm-title (slot-value reply 'value))
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(when exwm-title
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(run-hooks 'exwm-update-title-hook)))))))
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(defun exwm--update-title (id)
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"Update _NET_WM_NAME or WM_NAME."
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(exwm--update-utf8-title id)
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(exwm--update-ctext-title id))
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(defun exwm--update-transient-for (id &optional force)
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"Update WM_TRANSIENT_FOR."
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(with-current-buffer (exwm--id->buffer id)
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(unless (and exwm-transient-for (not force))
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(let ((reply (xcb:+request-unchecked+reply exwm--connection
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(make-instance 'xcb:icccm:get-WM_TRANSIENT_FOR
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:window id))))
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(when reply ;nil when destroyed
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(setq exwm-transient-for (slot-value reply 'value)))))))
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(defun exwm--update-normal-hints (id &optional force)
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"Update WM_NORMAL_HINTS."
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(with-current-buffer (exwm--id->buffer id)
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(unless (and (not force)
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(or exwm--normal-hints-x exwm--normal-hints-y
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exwm--normal-hints-width exwm--normal-hints-height
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exwm--normal-hints-min-width exwm--normal-hints-min-height
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exwm--normal-hints-max-width exwm--normal-hints-max-height
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;; FIXME: other fields
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))
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(let ((reply (xcb:+request-unchecked+reply exwm--connection
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(make-instance 'xcb:icccm:get-WM_NORMAL_HINTS
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:window id))))
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(when (and reply (slot-value reply 'flags)) ;nil when destroyed
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(with-slots (flags x y width height min-width min-height max-width
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max-height base-width base-height ;; win-gravity
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)
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reply
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(unless (= 0 (logand flags xcb:icccm:WM_SIZE_HINTS:USPosition))
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(setq exwm--normal-hints-x x exwm--normal-hints-y y))
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(unless (= 0 (logand flags xcb:icccm:WM_SIZE_HINTS:USSize))
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(setq exwm--normal-hints-width width
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exwm--normal-hints-height height))
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(unless (= 0 (logand flags xcb:icccm:WM_SIZE_HINTS:PMinSize))
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(setq exwm--normal-hints-min-width min-width
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exwm--normal-hints-min-height min-height))
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(unless (= 0 (logand flags xcb:icccm:WM_SIZE_HINTS:PMaxSize))
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(setq exwm--normal-hints-max-width max-width
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exwm--normal-hints-max-height max-height))
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(unless (or exwm--normal-hints-min-width
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(= 0 (logand flags xcb:icccm:WM_SIZE_HINTS:PBaseSize)))
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(setq exwm--normal-hints-min-width base-width
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exwm--normal-hints-min-height base-height))
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;; (unless (= 0 (logand flags xcb:icccm:WM_SIZE_HINTS:PWinGravity))
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;; (setq exwm--normal-hints-win-gravity win-gravity))
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(setq exwm--fixed-size
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(and exwm--normal-hints-min-width
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exwm--normal-hints-min-height
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exwm--normal-hints-max-width
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exwm--normal-hints-max-height
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(/= 0 exwm--normal-hints-min-width)
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(/= 0 exwm--normal-hints-min-height)
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(= exwm--normal-hints-min-width
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exwm--normal-hints-max-width)
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(= exwm--normal-hints-min-height
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exwm--normal-hints-max-height)))))))))
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(defun exwm--update-hints (id &optional force)
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"Update WM_HINTS."
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(with-current-buffer (exwm--id->buffer id)
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(unless (and (not force) exwm--hints-input exwm--hints-urgency)
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(let ((reply (xcb:+request-unchecked+reply exwm--connection
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(make-instance 'xcb:icccm:get-WM_HINTS :window id))))
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(when (and reply (slot-value reply 'flags)) ;nil when destroyed
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(with-slots (flags input) reply
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(when flags
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(unless (= 0 (logand flags xcb:icccm:WM_HINTS:InputHint))
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(setq exwm--hints-input (when input (= 1 input))))
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(unless (= 0 (logand flags xcb:icccm:WM_HINTS:UrgencyHint))
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(setq exwm--hints-urgency t))))
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(when (and exwm--hints-urgency
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(not (eq exwm--frame exwm-workspace--current)))
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(unless (frame-parameter exwm--frame 'exwm--urgency)
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(set-frame-parameter exwm--frame 'exwm--urgency t)
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(setq exwm-workspace--switch-history-outdated t))))))))
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(defun exwm--update-protocols (id &optional force)
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"Update WM_PROTOCOLS."
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(with-current-buffer (exwm--id->buffer id)
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(unless (and exwm--protocols (not force))
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(let ((reply (xcb:+request-unchecked+reply exwm--connection
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(make-instance 'xcb:icccm:get-WM_PROTOCOLS
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:window id))))
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(when reply ;nil when destroyed
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(setq exwm--protocols (append (slot-value reply 'value) nil)))))))
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(defun exwm--update-state (id &optional force)
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"Update WM_STATE."
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(with-current-buffer (exwm--id->buffer id)
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(unless (and exwm-state (not force))
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(let ((reply (xcb:+request-unchecked+reply exwm--connection
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(make-instance 'xcb:icccm:get-WM_STATE :window id))))
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(when reply ;nil when destroyed
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(setq exwm-state (or (slot-value reply 'state)
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;; Default to normal state
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xcb:icccm:WM_STATE:NormalState)))))))
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(defun exwm--on-PropertyNotify (data _synthetic)
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"Handle PropertyNotify event."
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(let ((obj (make-instance 'xcb:PropertyNotify))
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atom id buffer)
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(xcb:unmarshal obj data)
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(setq id (slot-value obj 'window)
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atom (slot-value obj 'atom)
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exwm-input--timestamp (slot-value obj 'time))
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(setq buffer (exwm--id->buffer id))
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(when (buffer-live-p buffer)
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(with-current-buffer buffer
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(cond ((= atom xcb:Atom:_NET_WM_WINDOW_TYPE)
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(exwm--update-window-type id t))
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((= atom xcb:Atom:WM_CLASS)
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(exwm--update-class id t))
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((= atom xcb:Atom:_NET_WM_NAME)
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(exwm--update-utf8-title id t))
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((= atom xcb:Atom:WM_NAME)
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(exwm--update-ctext-title id t))
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((= atom xcb:Atom:WM_TRANSIENT_FOR)
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(exwm--update-transient-for id t))
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((= atom xcb:Atom:WM_NORMAL_HINTS)
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(exwm--update-normal-hints id t))
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((= atom xcb:Atom:WM_HINTS)
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(exwm--update-hints id t))
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((= atom xcb:Atom:WM_PROTOCOLS)
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(exwm--update-protocols id t))
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((= atom xcb:Atom:WM_STATE)
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(exwm--update-state id t))
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((= atom xcb:Atom:_NET_WM_USER_TIME)) ;ignored
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(t (exwm--log "Unhandled PropertyNotify: %s(%d)"
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(x-get-atom-name atom exwm-workspace--current)
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atom)))))))
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(defun exwm--on-ClientMessage (raw-data _synthetic)
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"Handle ClientMessage event."
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(let ((obj (make-instance 'xcb:ClientMessage))
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type id data)
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(xcb:unmarshal obj raw-data)
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(setq type (slot-value obj 'type)
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id (slot-value obj 'window)
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data (slot-value (slot-value obj 'data) 'data32))
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(cond
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;; _NET_WM_MOVERESIZE
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((= type xcb:Atom:_NET_WM_MOVERESIZE)
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(let ((direction (elt data 2))
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(buffer (exwm--id->buffer id)))
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(unless (and buffer (with-current-buffer buffer
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(not exwm--floating-frame)))
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(cond ((= direction
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xcb:ewmh:_NET_WM_MOVERESIZE_SIZE_KEYBOARD)
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;; FIXME
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)
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((= direction
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xcb:ewmh:_NET_WM_MOVERESIZE_MOVE_KEYBOARD)
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;; FIXME
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)
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((= direction xcb:ewmh:_NET_WM_MOVERESIZE_CANCEL)
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(exwm-floating--stop-moveresize))
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(t (exwm-floating--start-moveresize id direction))))))
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;; _NET_REQUEST_FRAME_EXTENTS
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((= type xcb:Atom:_NET_REQUEST_FRAME_EXTENTS)
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(let ((buffer (exwm--id->buffer id))
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left right top btm)
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(if (or (not buffer)
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(with-current-buffer buffer
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(not exwm--floating-frame)))
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(setq left 0 right 0 top 0 btm 0)
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(setq left exwm-floating-border-width
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right exwm-floating-border-width
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top (+ exwm-floating-border-width (window-header-line-height))
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btm (+ exwm-floating-border-width
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(window-mode-line-height))))
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(xcb:+request exwm--connection
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(make-instance 'xcb:ewmh:set-_NET_FRAME_EXTENTS
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:window id :left left :right right
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:top top :bottom btm)))
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(xcb:flush exwm--connection))
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;; _NET_WM_STATE
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((= type xcb:Atom:_NET_WM_STATE)
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(let ((action (elt data 0))
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(props (list (elt data 1) (elt data 2)))
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(buffer (exwm--id->buffer id))
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props-new)
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;; only support _NET_WM_STATE_FULLSCREEN / _NET_WM_STATE_ADD for frames
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(when (and (not buffer)
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(memq xcb:Atom:_NET_WM_STATE_FULLSCREEN props)
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(= action xcb:ewmh:_NET_WM_STATE_ADD))
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(dolist (f exwm-workspace--list)
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(when (equal (frame-parameter f 'exwm-outer-id) id)
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(exwm-layout--set-frame-fullscreen f)
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(xcb:+request
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exwm--connection
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(make-instance 'xcb:ewmh:set-_NET_WM_STATE
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:window id
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:data (vector
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xcb:Atom:_NET_WM_STATE_FULLSCREEN)))
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(xcb:flush exwm--connection))))
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(when buffer ;ensure it's managed
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(with-current-buffer buffer
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;; _NET_WM_STATE_MODAL
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(when (memq xcb:Atom:_NET_WM_STATE_MODAL props)
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(cond ((= action xcb:ewmh:_NET_WM_STATE_ADD)
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(unless exwm--floating-frame
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(exwm-floating--set-floating id))
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(push xcb:Atom:_NET_WM_STATE_MODAL props-new))
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((= action xcb:ewmh:_NET_WM_STATE_REMOVE)
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(when exwm--floating-frame
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(exwm-floating--unset-floating id)))
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((= action xcb:ewmh:_NET_WM_STATE_TOGGLE)
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(if exwm--floating-frame
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(exwm-floating--unset-floating id)
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(exwm-floating--set-floating id)
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(push xcb:Atom:_NET_WM_STATE_MODAL props-new)))))
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;; _NET_WM_STATE_FULLSCREEN
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(when (or (memq xcb:Atom:_NET_WM_STATE_FULLSCREEN props)
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(memq xcb:Atom:_NET_WM_STATE_ABOVE props))
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(cond ((= action xcb:ewmh:_NET_WM_STATE_ADD)
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(unless exwm--fullscreen (exwm-layout-set-fullscreen id))
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(push xcb:Atom:_NET_WM_STATE_FULLSCREEN props-new))
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((= action xcb:ewmh:_NET_WM_STATE_REMOVE)
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(when exwm--fullscreen (exwm-layout-unset-fullscreen id)))
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((= action xcb:ewmh:_NET_WM_STATE_TOGGLE)
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(if exwm--fullscreen
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(exwm-layout-unset-fullscreen id)
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(exwm-layout-set-fullscreen id)
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(push xcb:Atom:_NET_WM_STATE_FULLSCREEN props-new)))))
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;; _NET_WM_STATE_DEMANDS_ATTENTION
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;; FIXME: check (may require other properties set)
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(when (memq xcb:Atom:_NET_WM_STATE_DEMANDS_ATTENTION props)
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(when (= action xcb:ewmh:_NET_WM_STATE_ADD)
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(let ((idx (cl-position exwm--frame exwm-workspace--list)))
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(unless (= idx exwm-workspace-current-index)
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(set-frame-parameter exwm--frame 'exwm--urgency t)
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(setq exwm-workspace--switch-history-outdated t))))
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;; xcb:ewmh:_NET_WM_STATE_REMOVE?
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;; xcb:ewmh:_NET_WM_STATE_TOGGLE?
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)
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(xcb:+request exwm--connection
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(make-instance 'xcb:ewmh:set-_NET_WM_STATE
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:window id :data (vconcat props-new)))
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(xcb:flush exwm--connection)))))
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((= type xcb:Atom:WM_PROTOCOLS)
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(let ((type (elt data 0)))
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(cond ((= type xcb:Atom:_NET_WM_PING)
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(setq exwm-manage--ping-lock nil))
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(t (exwm--log "Unhandled WM_PROTOCOLS of type: %d" type)))))
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(t (exwm--log "Unhandled client message: %s" obj)))))
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(defun exwm--init-icccm-ewmh ()
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"Initialize ICCCM/EWMH support."
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;; Handle PropertyNotify event
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(xcb:+event exwm--connection 'xcb:PropertyNotify #'exwm--on-PropertyNotify)
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;; Handle relevant client messages
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;; FIXME: WM_STATE client messages (normal => iconic)
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;; WM_COLORMAP_NOTIFY
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(xcb:+event exwm--connection 'xcb:ClientMessage #'exwm--on-ClientMessage)
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;; Set _NET_SUPPORTED
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(xcb:+request exwm--connection
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(make-instance 'xcb:ewmh:set-_NET_SUPPORTED
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:window exwm--root
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:data (vector xcb:Atom:_NET_SUPPORTED
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xcb:Atom:_NET_CLIENT_LIST
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xcb:Atom:_NET_CLIENT_LIST_STACKING
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||
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-own-frame-p)
|
||
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 frame
|
||
;; The frame might not be selected if it's created by emacslicnet.
|
||
(select-frame-set-input-focus frame)
|
||
(setq frame (selected-frame)))
|
||
(if (not (eq 'x (framep frame)))
|
||
(exwm--log "Not running under X environment")
|
||
(unless exwm--connection
|
||
(exwm-enable 'undo) ;never initialize again
|
||
(setq exwm--connection (xcb:connect))
|
||
(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 t)
|
||
(xcb:ewmh:init exwm--connection t)
|
||
(exwm--lock)
|
||
(exwm--init-icccm-ewmh)
|
||
(exwm-layout--init)
|
||
(exwm-floating--init)
|
||
(exwm-manage--init)
|
||
(exwm-workspace--init)
|
||
(exwm-input--init)
|
||
(exwm--unlock)
|
||
(exwm-workspace--post-init)
|
||
;; Manage existing windows
|
||
(exwm-manage--scan)
|
||
(run-hooks 'exwm-init-hook)))))
|
||
|
||
(defvar exwm-exit-hook nil
|
||
"Normal hook run just before EXWM is about to exit.
|
||
|
||
This hook is only run when EXWM is started with emacsclient.")
|
||
|
||
(defun exwm--exit ()
|
||
"Exit EXWM."
|
||
(run-hooks 'exwm-exit-hook)
|
||
;; Exit modules.
|
||
(exwm-input--exit)
|
||
(exwm-workspace--exit)
|
||
(exwm-manage--exit)
|
||
(exwm-floating--exit)
|
||
(exwm-layout--exit)
|
||
;; Reset several import variables.
|
||
(setq exwm--connection nil
|
||
exwm--root nil
|
||
exwm--id-buffer-alist nil)
|
||
(exwm-enable))
|
||
|
||
(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" (frame-parameter nil 'display)
|
||
"-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
|