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chore(3p/emacs/exwm): Import from commit '0368127976bda29d35eed788edfe74644ecd3845'

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Imported from 0368127976

git-subtree-dir: third_party/emacs/exwm
git-subtree-mainline: e84f9ef0ad
git-subtree-split: 0368127976
Change-Id: Id3af5610254180f42947d71265aad89def7c6a3d
This commit is contained in:
Vincent Ambo 2020-11-08 01:00:10 +01:00
commit 6104f6514f
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README.md

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*.elc
*-pkg.el
*-autoloads.el

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# Emacs X Window Manager
EXWM (Emacs X Window Manager) is a full-featured tiling X window manager
for Emacs built on top of [XELB](https://github.com/ch11ng/xelb).
It features:
+ Fully keyboard-driven operations
+ Hybrid layout modes (tiling & stacking)
+ Dynamic workspace support
+ ICCCM/EWMH compliance
+ (Optional) RandR (multi-monitor) support
+ (Optional) Builtin system tray
+ (Optional) Builtin input method
Please check out the
[screenshots](https://github.com/ch11ng/exwm/wiki/Screenshots)
to get an overview of what EXWM is capable of,
and the [user guide](https://github.com/ch11ng/exwm/wiki)
for a detailed explanation of its usage.
**Note**: If you install EXWM from source, it's recommended to install
XELB also from source (otherwise install both from GNU ELPA).

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;;; exwm-cm.el --- Compositing Manager for EXWM -*- lexical-binding: t -*-
;; Copyright (C) 2016-2020 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;; This module is obsolete since EXWM now supports third-party compositors.
;;; Code:
(make-obsolete-variable 'exwm-cm-opacity
"This variable should no longer be used." "26")
(defun exwm-cm-set-opacity (&rest _args)
(declare (obsolete nil "26")))
(defun exwm-cm-enable ()
(declare (obsolete nil "26")))
(defun exwm-cm-start ()
(declare (obsolete nil "26")))
(defun exwm-cm-stop ()
(declare (obsolete nil "26")))
(defun exwm-cm-toggle ()
(declare (obsolete nil "26")))
(provide 'exwm-cm)
;;; exwm-cm.el ends here

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;;; exwm-config.el --- Predefined configurations -*- 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 contains typical (yet minimal) configurations of EXWM.
;;; Code:
(require 'exwm)
(require 'ido)
(define-obsolete-function-alias 'exwm-config-default
#'exwm-config-example "27.1")
(defun exwm-config-example ()
"Default configuration of EXWM."
;; Set the initial workspace number.
(unless (get 'exwm-workspace-number 'saved-value)
(setq exwm-workspace-number 4))
;; Make class name the buffer name
(add-hook 'exwm-update-class-hook
(lambda ()
(exwm-workspace-rename-buffer exwm-class-name)))
;; Global keybindings.
(unless (get 'exwm-input-global-keys 'saved-value)
(setq exwm-input-global-keys
`(
;; 's-r': Reset (to line-mode).
([?\s-r] . exwm-reset)
;; 's-w': Switch workspace.
([?\s-w] . exwm-workspace-switch)
;; 's-&': Launch application.
([?\s-&] . (lambda (command)
(interactive (list (read-shell-command "$ ")))
(start-process-shell-command command nil command)))
;; 's-N': Switch to certain workspace.
,@(mapcar (lambda (i)
`(,(kbd (format "s-%d" i)) .
(lambda ()
(interactive)
(exwm-workspace-switch-create ,i))))
(number-sequence 0 9)))))
;; Line-editing shortcuts
(unless (get 'exwm-input-simulation-keys 'saved-value)
(setq exwm-input-simulation-keys
'(([?\C-b] . [left])
([?\C-f] . [right])
([?\C-p] . [up])
([?\C-n] . [down])
([?\C-a] . [home])
([?\C-e] . [end])
([?\M-v] . [prior])
([?\C-v] . [next])
([?\C-d] . [delete])
([?\C-k] . [S-end delete]))))
;; Enable EXWM
(exwm-enable)
;; Configure Ido
(exwm-config-ido)
;; Other configurations
(exwm-config-misc))
(defun exwm-config--fix/ido-buffer-window-other-frame ()
"Fix `ido-buffer-window-other-frame'."
(defalias 'exwm-config-ido-buffer-window-other-frame
(symbol-function #'ido-buffer-window-other-frame))
(defun ido-buffer-window-other-frame (buffer)
"This is a version redefined by EXWM.
You can find the original one at `exwm-config-ido-buffer-window-other-frame'."
(with-current-buffer (window-buffer (selected-window))
(if (and (derived-mode-p 'exwm-mode)
exwm--floating-frame)
;; Switch from a floating frame.
(with-current-buffer buffer
(if (and (derived-mode-p 'exwm-mode)
exwm--floating-frame
(eq exwm--frame exwm-workspace--current))
;; Switch to another floating frame.
(frame-root-window exwm--floating-frame)
;; Do not switch if the buffer is not on the current workspace.
(or (get-buffer-window buffer exwm-workspace--current)
(selected-window))))
(with-current-buffer buffer
(when (derived-mode-p 'exwm-mode)
(if (eq exwm--frame exwm-workspace--current)
(when exwm--floating-frame
;; Switch to a floating frame on the current workspace.
(frame-selected-window exwm--floating-frame))
;; Do not switch to exwm-mode buffers on other workspace (which
;; won't work unless `exwm-layout-show-all-buffers' is set)
(unless exwm-layout-show-all-buffers
(selected-window)))))))))
(defun exwm-config-ido ()
"Configure Ido to work with EXWM."
(ido-mode 1)
(add-hook 'exwm-init-hook #'exwm-config--fix/ido-buffer-window-other-frame))
(defun exwm-config-misc ()
"Other configurations."
;; Make more room
(menu-bar-mode -1)
(tool-bar-mode -1)
(scroll-bar-mode -1)
(fringe-mode 1))
(provide 'exwm-config)
;;; exwm-config.el ends here

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;;; exwm-core.el --- Core definitions -*- 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 includes core definitions of variables, macros, functions, etc
;; shared by various other modules.
;;; Code:
(require 'kmacro)
(require 'xcb)
(require 'xcb-icccm)
(require 'xcb-ewmh)
(require 'xcb-debug)
(defcustom exwm-debug-log-time-function #'exwm-debug-log-uptime
"Function used for generating timestamps in `exwm-debug' logs.
Here are some predefined candidates:
`exwm-debug-log-uptime': Display the uptime of this Emacs instance.
`exwm-debug-log-time': Display time of day.
`nil': Disable timestamp."
:group 'exwm-debug
:type `(choice (const :tag "Emacs uptime" ,#'exwm-debug-log-uptime)
(const :tag "Time of day" ,#'exwm-debug-log-time)
(const :tag "Off" nil)
(function :tag "Other"))
:set (lambda (symbol value)
(set-default symbol value)
;; Also change the format for XELB to make logs consistent
;; (as they share the same buffer).
(setq xcb-debug:log-time-function value)))
(defalias 'exwm-debug-log-uptime 'xcb-debug:log-uptime
"Add uptime to `exwm-debug' logs.")
(defalias 'exwm-debug-log-time 'xcb-debug:log-time
"Add time of day to `exwm-debug' logs.")
(defvar exwm--connection nil "X connection.")
(defvar exwm--wmsn-window nil
"An X window owning the WM_S0 selection.")
(defvar exwm--wmsn-acquire-timeout 3
"Number of seconds to wait for other window managers to release the selection.")
(defvar exwm--guide-window nil
"An X window separating workspaces and X windows.")
(defvar exwm--id-buffer-alist nil "Alist of (<X window ID> . <Emacs buffer>).")
(defvar exwm--root nil "Root window.")
(defvar exwm-input--global-prefix-keys)
(defvar exwm-input--simulation-keys)
(defvar exwm-input-line-mode-passthrough)
(defvar exwm-input-prefix-keys)
(declare-function exwm-input--fake-key "exwm-input.el" (event))
(declare-function exwm-input--on-KeyPress-line-mode "exwm-input.el"
(key-press raw-data))
(declare-function exwm-floating-hide "exwm-floating.el")
(declare-function exwm-floating-toggle-floating "exwm-floating.el")
(declare-function exwm-input-release-keyboard "exwm-input.el")
(declare-function exwm-input-send-next-key "exwm-input.el" (times))
(declare-function exwm-layout-set-fullscreen "exwm-layout.el" (&optional id))
(declare-function exwm-layout-toggle-mode-line "exwm-layout.el")
(declare-function exwm-manage--kill-buffer-query-function "exwm-manage.el")
(declare-function exwm-workspace-move-window "exwm-workspace.el"
(frame-or-index &optional id))
(define-minor-mode exwm-debug
"Debug-logging enabled if non-nil"
:global t)
(defmacro exwm--debug (&rest forms)
(when exwm-debug `(progn ,@forms)))
(defmacro exwm--log (&optional format-string &rest objects)
"Emit a message prepending the name of the function being executed.
FORMAT-STRING is a string specifying the message to output, as in
`format'. The OBJECTS arguments specify the substitutions."
(unless format-string (setq format-string ""))
`(when exwm-debug
(xcb-debug:message ,(concat "%s%s:\t" format-string "\n")
(if exwm-debug-log-time-function
(funcall exwm-debug-log-time-function)
"")
(xcb-debug:compile-time-function-name)
,@objects)
nil))
(defsubst exwm--id->buffer (id)
"X window ID => Emacs buffer."
(cdr (assoc id exwm--id-buffer-alist)))
(defsubst exwm--buffer->id (buffer)
"Emacs buffer BUFFER => X window ID."
(car (rassoc buffer exwm--id-buffer-alist)))
(defun exwm--lock (&rest _args)
"Lock (disable all events)."
(exwm--log)
(xcb:+request exwm--connection
(make-instance 'xcb:ChangeWindowAttributes
:window exwm--root
:value-mask xcb:CW:EventMask
:event-mask xcb:EventMask:NoEvent))
(xcb:flush exwm--connection))
(defun exwm--unlock (&rest _args)
"Unlock (enable all events)."
(exwm--log)
(xcb:+request exwm--connection
(make-instance 'xcb:ChangeWindowAttributes
:window exwm--root
:value-mask xcb:CW:EventMask
:event-mask (eval-when-compile
(logior xcb:EventMask:SubstructureRedirect
xcb:EventMask:StructureNotify))))
(xcb:flush exwm--connection))
(defun exwm--set-geometry (xwin x y width height)
"Set the geometry of X window XWIN to WIDTHxHEIGHT+X+Y.
Nil can be passed as placeholder."
(exwm--log "Setting #x%x to %sx%s+%s+%s" xwin width height x y)
(xcb:+request exwm--connection
(make-instance 'xcb:ConfigureWindow
:window xwin
:value-mask (logior (if x xcb:ConfigWindow:X 0)
(if y xcb:ConfigWindow:Y 0)
(if width xcb:ConfigWindow:Width 0)
(if height xcb:ConfigWindow:Height 0))
:x x :y y :width width :height height)))
(defun exwm--intern-atom (atom)
"Intern X11 ATOM."
(slot-value (xcb:+request-unchecked+reply exwm--connection
(make-instance 'xcb:InternAtom
:only-if-exists 0
:name-len (length atom)
:name atom))
'atom))
(defmacro exwm--defer (secs function &rest args)
"Defer the execution of FUNCTION.
The action is to call FUNCTION with arguments ARGS. If Emacs is not idle,
defer the action until Emacs is idle. Otherwise, defer the action until at
least SECS seconds later."
`(run-with-idle-timer (+ (float-time (or (current-idle-time)
(seconds-to-time (- ,secs))))
,secs)
nil
,function
,@args))
(defun exwm--get-client-event-mask ()
"Return event mask set on all managed windows."
(logior xcb:EventMask:StructureNotify
xcb:EventMask:PropertyChange
(if mouse-autoselect-window
xcb:EventMask:EnterWindow 0)))
(defun exwm--color->pixel (color)
"Convert COLOR to PIXEL (index in TrueColor colormap)."
(when (and color
(eq (x-display-visual-class) 'true-color))
(let ((rgb (x-color-values color)))
(logior (lsh (lsh (pop rgb) -8) 16)
(lsh (lsh (pop rgb) -8) 8)
(lsh (pop rgb) -8)))))
;; Internal variables
(defvar-local exwm--id nil) ;window ID
(defvar-local exwm--configurations nil) ;initial configurations.
(defvar-local exwm--frame nil) ;workspace frame
(defvar-local exwm--floating-frame nil) ;floating frame
(defvar-local exwm--mode-line-format nil) ;save mode-line-format
(defvar-local exwm--floating-frame-position nil) ;set when hidden.
(defvar-local exwm--fixed-size nil) ;fixed size
(defvar-local exwm--selected-input-mode 'line-mode
"Input mode as selected by the user.
One of `line-mode' or `char-mode'.")
(defvar-local exwm--input-mode 'line-mode
"Actual input mode, i.e. whether mouse and keyboard are grabbed.")
;; Properties
(defvar-local exwm--desktop nil "_NET_WM_DESKTOP.")
(defvar-local exwm-window-type nil "_NET_WM_WINDOW_TYPE.")
(defvar-local exwm--geometry nil)
(defvar-local exwm-class-name nil "Class name in WM_CLASS.")
(defvar-local exwm-instance-name nil "Instance name in WM_CLASS.")
(defvar-local exwm-title nil "Window title (either _NET_WM_NAME or WM_NAME)")
(defvar-local exwm--title-is-utf8 nil)
(defvar-local exwm-transient-for nil "WM_TRANSIENT_FOR.")
(defvar-local exwm--protocols nil)
(defvar-local exwm-state xcb:icccm:WM_STATE:NormalState "WM_STATE.")
(defvar-local exwm--ewmh-state nil "_NET_WM_STATE.")
;; _NET_WM_NORMAL_HINTS
(defvar-local exwm--normal-hints-x nil)
(defvar-local exwm--normal-hints-y nil)
(defvar-local exwm--normal-hints-width nil)
(defvar-local exwm--normal-hints-height nil)
(defvar-local exwm--normal-hints-min-width nil)
(defvar-local exwm--normal-hints-min-height nil)
(defvar-local exwm--normal-hints-max-width nil)
(defvar-local exwm--normal-hints-max-height nil)
;; (defvar-local exwm--normal-hints-win-gravity nil)
;; WM_HINTS
(defvar-local exwm--hints-input nil)
(defvar-local exwm--hints-urgency nil)
;; _MOTIF_WM_HINTS
(defvar-local exwm--mwm-hints-decorations t)
(defvar exwm-mode-map
(let ((map (make-sparse-keymap)))
(define-key map "\C-c\C-d\C-l" #'xcb-debug:clear)
(define-key map "\C-c\C-d\C-m" #'xcb-debug:mark)
(define-key map "\C-c\C-d\C-t" #'exwm-debug)
(define-key map "\C-c\C-f" #'exwm-layout-set-fullscreen)
(define-key map "\C-c\C-h" #'exwm-floating-hide)
(define-key map "\C-c\C-k" #'exwm-input-release-keyboard)
(define-key map "\C-c\C-m" #'exwm-workspace-move-window)
(define-key map "\C-c\C-q" #'exwm-input-send-next-key)
(define-key map "\C-c\C-t\C-f" #'exwm-floating-toggle-floating)
(define-key map "\C-c\C-t\C-m" #'exwm-layout-toggle-mode-line)
map)
"Keymap for `exwm-mode'.")
(defvar exwm--kmacro-map
(let ((map (make-sparse-keymap)))
(define-key map [t]
(lambda ()
(interactive)
(cond
((or exwm-input-line-mode-passthrough
;; Do not test `exwm-input--during-command'.
(active-minibuffer-window)
(memq last-input-event exwm-input--global-prefix-keys)
(memq last-input-event exwm-input-prefix-keys)
(lookup-key exwm-mode-map (vector last-input-event))
(gethash last-input-event exwm-input--simulation-keys))
(set-transient-map (make-composed-keymap (list exwm-mode-map
global-map)))
(push last-input-event unread-command-events))
(t
(exwm-input--fake-key last-input-event)))))
map)
"Keymap used when executing keyboard macros.")
;; This menu mainly acts as an reminder for users. Thus it should be as
;; detailed as possible, even some entries do not make much sense here.
;; Also, inactive entries should be disabled rather than hidden.
(easy-menu-define exwm-mode-menu exwm-mode-map
"Menu for `exwm-mode'."
'("EXWM"
"---"
"*General*"
"---"
["Toggle floating" exwm-floating-toggle-floating]
["Toggle fullscreen mode" exwm-layout-toggle-fullscreen]
["Hide window" exwm-floating-hide exwm--floating-frame]
["Close window" (kill-buffer (current-buffer))]
"---"
"*Resizing*"
"---"
["Toggle mode-line" exwm-layout-toggle-mode-line]
["Enlarge window vertically" exwm-layout-enlarge-window]
["Enlarge window horizontally" exwm-layout-enlarge-window-horizontally]
["Shrink window vertically" exwm-layout-shrink-window]
["Shrink window horizontally" exwm-layout-shrink-window-horizontally]
"---"
"*Keyboard*"
"---"
["Toggle keyboard mode" exwm-input-toggle-keyboard]
["Send key" exwm-input-send-next-key (eq exwm--input-mode 'line-mode)]
;; This is merely a reference.
("Send simulation key" :filter
(lambda (&rest _args)
(let (result)
(maphash
(lambda (key value)
(when (sequencep key)
(setq result (append result
`([
,(format "Send '%s'"
(key-description value))
(lambda ()
(interactive)
(dolist (i ',value)
(exwm-input--fake-key i)))
:keys ,(key-description key)])))))
exwm-input--simulation-keys)
result)))
["Define global binding" exwm-input-set-key]
"---"
"*Workspace*"
"---"
["Add workspace" exwm-workspace-add]
["Delete current workspace" exwm-workspace-delete]
["Move workspace to" exwm-workspace-move]
["Swap workspaces" exwm-workspace-swap]
["Move X window to" exwm-workspace-move-window]
["Move X window from" exwm-workspace-switch-to-buffer]
["Toggle minibuffer" exwm-workspace-toggle-minibuffer]
["Switch workspace" exwm-workspace-switch]
;; Place this entry at bottom to avoid selecting others by accident.
("Switch to" :filter
(lambda (&rest _args)
(mapcar (lambda (i)
`[,(format "Workspace %d" i)
(lambda ()
(interactive)
(exwm-workspace-switch ,i))
(/= ,i exwm-workspace-current-index)])
(number-sequence 0 (1- (exwm-workspace--count))))))))
(define-derived-mode exwm-mode nil "EXWM"
"Major mode for managing X windows.
\\{exwm-mode-map}"
;;
(setq mode-name
'(:eval (propertize "EXWM" 'face
(when (cl-some (lambda (i)
(frame-parameter i 'exwm-urgency))
exwm-workspace--list)
'font-lock-warning-face))))
;; Change major-mode is not allowed
(add-hook 'change-major-mode-hook #'kill-buffer nil t)
;; Kill buffer -> close window
(add-hook 'kill-buffer-query-functions
#'exwm-manage--kill-buffer-query-function nil t)
;; Redirect events when executing keyboard macros.
(push `(executing-kbd-macro . ,exwm--kmacro-map)
minor-mode-overriding-map-alist)
(setq buffer-read-only t
cursor-type nil
left-margin-width nil
right-margin-width nil
left-fringe-width 0
right-fringe-width 0
vertical-scroll-bar nil))
(provide 'exwm-core)
;;; exwm-core.el ends here

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;;; exwm-floating.el --- Floating 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 deals with the conversion between floating and non-floating
;; states and implements moving/resizing operations on floating windows.
;;; Code:
(require 'xcb-cursor)
(require 'exwm-core)
(defgroup exwm-floating nil
"Floating."
:version "25.3"
:group 'exwm)
(defcustom exwm-floating-setup-hook nil
"Normal hook run when an X window has been made floating, in the
context of the corresponding buffer."
:type 'hook)
(defcustom exwm-floating-exit-hook nil
"Normal hook run when an X window has exited floating state, in the
context of the corresponding buffer."
:type 'hook)
(defcustom exwm-floating-border-color "navy"
"Border color of floating windows."
:type 'color
:initialize #'custom-initialize-default
:set (lambda (symbol value)
(set-default symbol value)
;; Change border color for all floating X windows.
(when exwm--connection
(let ((border-pixel (exwm--color->pixel value)))
(when border-pixel
(dolist (pair exwm--id-buffer-alist)
(with-current-buffer (cdr pair)
(when exwm--floating-frame
(xcb:+request exwm--connection
(make-instance 'xcb:ChangeWindowAttributes
:window
(frame-parameter exwm--floating-frame
'exwm-container)
:value-mask xcb:CW:BorderPixel
:border-pixel border-pixel)))))
(xcb:flush exwm--connection))))))
(defcustom exwm-floating-border-width 1
"Border width of floating windows."
:type '(integer
:validate (lambda (widget)
(when (< (widget-value widget) 0)
(widget-put widget :error "Border width is at least 0")
widget)))
:initialize #'custom-initialize-default
:set (lambda (symbol value)
(let ((delta (- value exwm-floating-border-width))
container)
(set-default symbol value)
;; Change border width for all floating X windows.
(dolist (pair exwm--id-buffer-alist)
(with-current-buffer (cdr pair)
(when exwm--floating-frame
(setq container (frame-parameter exwm--floating-frame
'exwm-container))
(with-slots (x y)
(xcb:+request-unchecked+reply exwm--connection
(make-instance 'xcb:GetGeometry
:drawable container))
(xcb:+request exwm--connection
(make-instance 'xcb:ConfigureWindow
:window container
:value-mask
(logior xcb:ConfigWindow:X
xcb:ConfigWindow:Y
xcb:ConfigWindow:BorderWidth)
:border-width value
:x (- x delta)
:y (- y delta)))))))
(when exwm--connection
(xcb:flush exwm--connection)))))
;; Cursors for moving/resizing a window
(defvar exwm-floating--cursor-move nil)
(defvar exwm-floating--cursor-top-left nil)
(defvar exwm-floating--cursor-top nil)
(defvar exwm-floating--cursor-top-right nil)
(defvar exwm-floating--cursor-right nil)
(defvar exwm-floating--cursor-bottom-right nil)
(defvar exwm-floating--cursor-bottom nil)
(defvar exwm-floating--cursor-bottom-left nil)
(defvar exwm-floating--cursor-left nil)
(defvar exwm-floating--moveresize-calculate nil
"Calculate move/resize parameters [buffer event-mask x y width height].")
(defvar exwm-workspace--current)
(defvar exwm-workspace--frame-y-offset)
(defvar exwm-workspace--window-y-offset)
(defvar exwm-workspace--workareas)
(declare-function exwm-layout--hide "exwm-layout.el" (id))
(declare-function exwm-layout--iconic-state-p "exwm-layout.el" (&optional id))
(declare-function exwm-layout--refresh "exwm-layout.el" ())
(declare-function exwm-layout--show "exwm-layout.el" (id &optional window))
(declare-function exwm-workspace--position "exwm-workspace.el" (frame))
(declare-function exwm-workspace--update-offsets "exwm-workspace.el" ())
(defun exwm-floating--set-allowed-actions (id tilling)
"Set _NET_WM_ALLOWED_ACTIONS."
(exwm--log "#x%x" id)
(xcb:+request exwm--connection
(make-instance 'xcb:ewmh:set-_NET_WM_ALLOWED_ACTIONS
:window id
:data (if tilling
(vector xcb:Atom:_NET_WM_ACTION_MINIMIZE
xcb:Atom:_NET_WM_ACTION_FULLSCREEN
xcb:Atom:_NET_WM_ACTION_CHANGE_DESKTOP
xcb:Atom:_NET_WM_ACTION_CLOSE)
(vector xcb:Atom:_NET_WM_ACTION_MOVE
xcb:Atom:_NET_WM_ACTION_RESIZE
xcb:Atom:_NET_WM_ACTION_MINIMIZE
xcb:Atom:_NET_WM_ACTION_FULLSCREEN
xcb:Atom:_NET_WM_ACTION_CHANGE_DESKTOP
xcb:Atom:_NET_WM_ACTION_CLOSE)))))
(defun exwm-floating--set-floating (id)
"Make window ID floating."
(let ((window (get-buffer-window (exwm--id->buffer id))))
(when window
;; Hide the non-floating X window first.
(set-window-buffer window (other-buffer nil t))))
(let* ((original-frame (buffer-local-value 'exwm--frame
(exwm--id->buffer id)))
;; Create new frame
(frame (with-current-buffer
(or (get-buffer "*scratch*")
(progn
(set-buffer-major-mode
(get-buffer-create "*scratch*"))
(get-buffer "*scratch*")))
(make-frame
`((minibuffer . ,(minibuffer-window exwm--frame))
(left . ,(* window-min-width -10000))
(top . ,(* window-min-height -10000))
(width . ,window-min-width)
(height . ,window-min-height)
(unsplittable . t))))) ;and fix the size later
(outer-id (string-to-number (frame-parameter frame 'outer-window-id)))
(window-id (string-to-number (frame-parameter frame 'window-id)))
(frame-container (xcb:generate-id exwm--connection))
(window (frame-first-window frame)) ;and it's the only window
(x (slot-value exwm--geometry 'x))
(y (slot-value exwm--geometry 'y))
(width (slot-value exwm--geometry 'width))
(height (slot-value exwm--geometry 'height)))
;; Force drawing menu-bar & tool-bar.
(redisplay t)
(exwm-workspace--update-offsets)
(exwm--log "Floating geometry (original): %dx%d%+d%+d" width height x y)
;; Save frame parameters.
(set-frame-parameter frame 'exwm-outer-id outer-id)
(set-frame-parameter frame 'exwm-id window-id)
(set-frame-parameter frame 'exwm-container frame-container)
;; Fix illegal parameters
;; FIXME: check normal hints restrictions
(let* ((workarea (elt exwm-workspace--workareas
(exwm-workspace--position original-frame)))
(x* (aref workarea 0))
(y* (aref workarea 1))
(width* (aref workarea 2))
(height* (aref workarea 3)))
;; Center floating windows
(when (and (or (= x 0) (= x x*))
(or (= y 0) (= y y*)))
(let ((buffer (exwm--id->buffer exwm-transient-for))
window edges)
(when (and buffer (setq window (get-buffer-window buffer)))
(setq edges (window-inside-absolute-pixel-edges window))
(unless (and (<= width (- (elt edges 2) (elt edges 0)))
(<= height (- (elt edges 3) (elt edges 1))))
(setq edges nil)))
(if edges
;; Put at the center of leading window
(setq x (+ x* (/ (- (elt edges 2) (elt edges 0) width) 2))
y (+ y* (/ (- (elt edges 3) (elt edges 1) height) 2)))
;; Put at the center of screen
(setq x (/ (- width* width) 2)
y (/ (- height* height) 2)))))
(if (> width width*)
;; Too wide
(progn (setq x x*
width width*))
;; Invalid width
(when (= 0 width) (setq width (/ width* 2)))
;; Make sure at least half of the window is visible
(unless (< x* (+ x (/ width 2)) (+ x* width*))
(setq x (+ x* (/ (- width* width) 2)))))
(if (> height height*)
;; Too tall
(setq y y*
height height*)
;; Invalid height
(when (= 0 height) (setq height (/ height* 2)))
;; Make sure at least half of the window is visible
(unless (< y* (+ y (/ height 2)) (+ y* height*))
(setq y (+ y* (/ (- height* height) 2)))))
;; The geometry can be overridden by user options.
(let ((x** (plist-get exwm--configurations 'x))
(y** (plist-get exwm--configurations 'y))
(width** (plist-get exwm--configurations 'width))
(height** (plist-get exwm--configurations 'height)))
(if (integerp x**)
(setq x (+ x* x**))
(when (and (floatp x**)
(>= 1 x** 0))
(setq x (+ x* (round (* x** width*))))))
(if (integerp y**)
(setq y (+ y* y**))
(when (and (floatp y**)
(>= 1 y** 0))
(setq y (+ y* (round (* y** height*))))))
(if (integerp width**)
(setq width width**)
(when (and (floatp width**)
(> 1 width** 0))
(setq width (max 1 (round (* width** width*))))))
(if (integerp height**)
(setq height height**)
(when (and (floatp height**)
(> 1 height** 0))
(setq height (max 1 (round (* height** height*))))))))
(exwm--set-geometry id x y nil nil)
(xcb:flush exwm--connection)
(exwm--log "Floating geometry (corrected): %dx%d%+d%+d" width height x y)
;; Fit frame to client
;; It seems we have to make the frame invisible in order to resize it
;; timely.
;; The frame will be made visible by `select-frame-set-input-focus'.
(make-frame-invisible frame)
(let* ((edges (window-inside-pixel-edges window))
(frame-width (+ width (- (frame-pixel-width frame)
(- (elt edges 2) (elt edges 0)))))
(frame-height (+ height (- (frame-pixel-height frame)
(- (elt edges 3) (elt edges 1)))
;; Use `frame-outer-height' in the future.
exwm-workspace--frame-y-offset))
(floating-mode-line (plist-get exwm--configurations
'floating-mode-line))
(floating-header-line (plist-get exwm--configurations
'floating-header-line))
(border-pixel (exwm--color->pixel exwm-floating-border-color)))
(if floating-mode-line
(setq exwm--mode-line-format (or exwm--mode-line-format
mode-line-format)
mode-line-format floating-mode-line)
(if (and (not (plist-member exwm--configurations 'floating-mode-line))
exwm--mwm-hints-decorations)
(when exwm--mode-line-format
(setq mode-line-format exwm--mode-line-format))
;; The mode-line need to be hidden in floating mode.
(setq frame-height (- frame-height (window-mode-line-height
(frame-root-window frame)))
exwm--mode-line-format (or exwm--mode-line-format
mode-line-format)
mode-line-format nil)))
(if floating-header-line
(setq header-line-format floating-header-line)
(if (and (not (plist-member exwm--configurations
'floating-header-line))
exwm--mwm-hints-decorations)
(setq header-line-format nil)
;; The header-line need to be hidden in floating mode.
(setq frame-height (- frame-height (window-header-line-height
(frame-root-window frame)))
header-line-format nil)))
(set-frame-size frame frame-width frame-height t)
;; Create the frame container as the parent of the frame.
(xcb:+request exwm--connection
(make-instance 'xcb:CreateWindow
:depth 0
:wid frame-container
:parent exwm--root
:x x
:y (- y exwm-workspace--window-y-offset)
:width width
:height height
:border-width
(with-current-buffer (exwm--id->buffer id)
(let ((border-witdh (plist-get exwm--configurations
'border-width)))
(if (and (integerp border-witdh)
(>= border-witdh 0))
border-witdh
exwm-floating-border-width)))
:class xcb:WindowClass:InputOutput
:visual 0
:value-mask (logior xcb:CW:BackPixmap
(if border-pixel
xcb:CW:BorderPixel 0)
xcb:CW:OverrideRedirect)
:background-pixmap xcb:BackPixmap:ParentRelative
:border-pixel border-pixel
:override-redirect 1))
(xcb:+request exwm--connection
(make-instance 'xcb:ewmh:set-_NET_WM_NAME
:window frame-container
:data
(format "EXWM floating frame container for 0x%x" id)))
;; Map it.
(xcb:+request exwm--connection
(make-instance 'xcb:MapWindow :window frame-container))
;; Put the X window right above this frame container.
(xcb:+request exwm--connection
(make-instance 'xcb:ConfigureWindow
:window id
:value-mask (logior xcb:ConfigWindow:Sibling
xcb:ConfigWindow:StackMode)
:sibling frame-container
:stack-mode xcb:StackMode:Above)))
;; Reparent this frame to its container.
(xcb:+request exwm--connection
(make-instance 'xcb:ReparentWindow
:window outer-id :parent frame-container :x 0 :y 0))
(exwm-floating--set-allowed-actions id nil)
(xcb:flush exwm--connection)
;; Set window/buffer
(with-current-buffer (exwm--id->buffer id)
(setq window-size-fixed exwm--fixed-size
exwm--floating-frame frame)
;; Do the refresh manually.
(remove-hook 'window-configuration-change-hook #'exwm-layout--refresh)
(set-window-buffer window (current-buffer)) ;this changes current buffer
(add-hook 'window-configuration-change-hook #'exwm-layout--refresh)
(set-window-dedicated-p window t)
(exwm-layout--show id window))
(with-current-buffer (exwm--id->buffer id)
(if (exwm-layout--iconic-state-p id)
;; Hide iconic floating X windows.
(exwm-floating-hide)
(with-selected-frame exwm--frame
(exwm-layout--refresh)))
(select-frame-set-input-focus frame))
;; FIXME: Strangely, the Emacs frame can move itself at this point
;; when there are left/top struts set. Force resetting its
;; position seems working, but it'd better to figure out why.
;; FIXME: This also happens in another case (#220) where the cause is
;; still unclear.
(exwm--set-geometry outer-id 0 0 nil nil)
(xcb:flush exwm--connection))
(with-current-buffer (exwm--id->buffer id)
(run-hooks 'exwm-floating-setup-hook))
;; Redraw the frame.
(redisplay t))
(defun exwm-floating--unset-floating (id)
"Make window ID non-floating."
(exwm--log "#x%x" id)
(let ((buffer (exwm--id->buffer id)))
(with-current-buffer buffer
(when exwm--floating-frame
;; The X window is already mapped.
;; Unmap the X window.
(xcb:+request exwm--connection
(make-instance 'xcb:ChangeWindowAttributes
:window id :value-mask xcb:CW:EventMask
:event-mask xcb:EventMask:NoEvent))
(xcb:+request exwm--connection
(make-instance 'xcb:UnmapWindow :window id))
(xcb:+request exwm--connection
(make-instance 'xcb:ChangeWindowAttributes
:window id :value-mask xcb:CW:EventMask
:event-mask (exwm--get-client-event-mask)))
;; Reparent the floating frame back to the root window.
(let ((frame-id (frame-parameter exwm--floating-frame 'exwm-outer-id))
(frame-container (frame-parameter exwm--floating-frame
'exwm-container)))
(xcb:+request exwm--connection
(make-instance 'xcb:UnmapWindow :window frame-id))
(xcb:+request exwm--connection
(make-instance 'xcb:ReparentWindow
:window frame-id
:parent exwm--root
:x 0 :y 0))
;; Also destroy its container.
(xcb:+request exwm--connection
(make-instance 'xcb:DestroyWindow :window frame-container))))
;; Place the X window just above the reference X window.
;; (the stacking order won't change from now on).
;; Also hide the possible floating border.
(xcb:+request exwm--connection
(make-instance 'xcb:ConfigureWindow
:window id
:value-mask (logior xcb:ConfigWindow:BorderWidth
xcb:ConfigWindow:Sibling
xcb:ConfigWindow:StackMode)
:border-width 0
:sibling exwm--guide-window
:stack-mode xcb:StackMode:Above)))
(exwm-floating--set-allowed-actions id t)
(xcb:flush exwm--connection)
(with-current-buffer buffer
(when exwm--floating-frame ;from floating to non-floating
(set-window-dedicated-p (frame-first-window exwm--floating-frame) nil)
;; Select a tiling window and delete the old frame.
(select-window (frame-selected-window exwm-workspace--current))
(with-current-buffer buffer
(delete-frame exwm--floating-frame))))
(with-current-buffer buffer
(setq window-size-fixed nil
exwm--floating-frame nil)
(if (not (plist-member exwm--configurations 'tiling-mode-line))
(when exwm--mode-line-format
(setq mode-line-format exwm--mode-line-format))
(setq exwm--mode-line-format (or exwm--mode-line-format
mode-line-format)
mode-line-format (plist-get exwm--configurations
'tiling-mode-line)))
(if (not (plist-member exwm--configurations 'tiling-header-line))
(setq header-line-format nil)
(setq header-line-format (plist-get exwm--configurations
'tiling-header-line))))
;; Only show X windows in normal state.
(unless (exwm-layout--iconic-state-p)
(pop-to-buffer-same-window buffer)))
(with-current-buffer (exwm--id->buffer id)
(run-hooks 'exwm-floating-exit-hook)))
;;;###autoload
(cl-defun exwm-floating-toggle-floating ()
"Toggle the current window between floating and non-floating states."
(interactive)
(exwm--log)
(unless (derived-mode-p 'exwm-mode)
(cl-return-from exwm-floating-toggle-floating))
(with-current-buffer (window-buffer)
(if exwm--floating-frame
(exwm-floating--unset-floating exwm--id)
(exwm-floating--set-floating exwm--id))))
;;;###autoload
(defun exwm-floating-hide ()
"Hide the current floating X window (which would show again when selected)."
(interactive)
(exwm--log)
(when (and (derived-mode-p 'exwm-mode)
exwm--floating-frame)
(exwm-layout--hide exwm--id)
(select-frame-set-input-focus exwm-workspace--current)))
(defun exwm-floating--start-moveresize (id &optional type)
"Start move/resize."
(exwm--log "#x%x" id)
(let ((buffer-or-id (or (exwm--id->buffer id) id))
frame container-or-id x y width height cursor)
(if (bufferp buffer-or-id)
;; Managed.
(with-current-buffer buffer-or-id
(setq frame exwm--floating-frame
container-or-id (frame-parameter exwm--floating-frame
'exwm-container)))
;; Unmanaged.
(setq container-or-id id))
(when (and container-or-id
;; Test if the pointer can be grabbed
(= xcb:GrabStatus:Success
(slot-value
(xcb:+request-unchecked+reply exwm--connection
(make-instance 'xcb:GrabPointer
:owner-events 0
:grab-window container-or-id
:event-mask xcb:EventMask:NoEvent
:pointer-mode xcb:GrabMode:Async
:keyboard-mode xcb:GrabMode:Async
:confine-to xcb:Window:None
:cursor xcb:Cursor:None
:time xcb:Time:CurrentTime))
'status)))
(with-slots (root-x root-y win-x win-y)
(xcb:+request-unchecked+reply exwm--connection
(make-instance 'xcb:QueryPointer :window id))
(if (not (bufferp buffer-or-id))
;; Unmanaged.
(unless (eq type xcb:ewmh:_NET_WM_MOVERESIZE_MOVE)
(with-slots ((width* width)
(height* height))
(xcb:+request-unchecked+reply exwm--connection
(make-instance 'xcb:GetGeometry :drawable id))
(setq width width*
height height*)))
;; Managed.
(select-window (frame-first-window frame)) ;transfer input focus
(setq width (frame-pixel-width frame)
height (frame-pixel-height frame))
(unless type
;; Determine the resize type according to the pointer position
;; Clicking the center 1/3 part to resize has no effect
(setq x (/ (* 3 win-x) (float width))
y (/ (* 3 win-y) (float height))
type (cond ((and (< x 1) (< y 1))
xcb:ewmh:_NET_WM_MOVERESIZE_SIZE_TOPLEFT)
((and (> x 2) (< y 1))
xcb:ewmh:_NET_WM_MOVERESIZE_SIZE_TOPRIGHT)
((and (> x 2) (> y 2))
xcb:ewmh:_NET_WM_MOVERESIZE_SIZE_BOTTOMRIGHT)
((and (< x 1) (> y 2))
xcb:ewmh:_NET_WM_MOVERESIZE_SIZE_BOTTOMLEFT)
((> x 2) xcb:ewmh:_NET_WM_MOVERESIZE_SIZE_RIGHT)
((> y 2) xcb:ewmh:_NET_WM_MOVERESIZE_SIZE_BOTTOM)
((< x 1) xcb:ewmh:_NET_WM_MOVERESIZE_SIZE_LEFT)
((< y 1) xcb:ewmh:_NET_WM_MOVERESIZE_SIZE_TOP)))))
(if (not type)
(exwm-floating--stop-moveresize)
(cond ((= type xcb:ewmh:_NET_WM_MOVERESIZE_MOVE)
(setq cursor exwm-floating--cursor-move
exwm-floating--moveresize-calculate
(lambda (x y)
(vector buffer-or-id
(eval-when-compile
(logior xcb:ConfigWindow:X
xcb:ConfigWindow:Y))
(- x win-x) (- y win-y) 0 0))))
((= type xcb:ewmh:_NET_WM_MOVERESIZE_SIZE_TOPLEFT)
(setq cursor exwm-floating--cursor-top-left
exwm-floating--moveresize-calculate
(lambda (x y)
(vector buffer-or-id
(eval-when-compile
(logior xcb:ConfigWindow:X
xcb:ConfigWindow:Y
xcb:ConfigWindow:Width
xcb:ConfigWindow:Height))
(- x win-x) (- y win-y)
(- (+ root-x width) x)
(- (+ root-y height) y)))))
((= type xcb:ewmh:_NET_WM_MOVERESIZE_SIZE_TOP)
(setq cursor exwm-floating--cursor-top
exwm-floating--moveresize-calculate
(lambda (_x y)
(vector buffer-or-id
(eval-when-compile
(logior xcb:ConfigWindow:Y
xcb:ConfigWindow:Height))
0 (- y win-y) 0 (- (+ root-y height) y)))))
((= type xcb:ewmh:_NET_WM_MOVERESIZE_SIZE_TOPRIGHT)
(setq cursor exwm-floating--cursor-top-right
exwm-floating--moveresize-calculate
(lambda (x y)
(vector buffer-or-id
(eval-when-compile
(logior xcb:ConfigWindow:Y
xcb:ConfigWindow:Width
xcb:ConfigWindow:Height))
0 (- y win-y) (- x (- root-x width))
(- (+ root-y height) y)))))
((= type xcb:ewmh:_NET_WM_MOVERESIZE_SIZE_RIGHT)
(setq cursor exwm-floating--cursor-right
exwm-floating--moveresize-calculate
(lambda (x _y)
(vector buffer-or-id
xcb:ConfigWindow:Width
0 0 (- x (- root-x width)) 0))))
((= type xcb:ewmh:_NET_WM_MOVERESIZE_SIZE_BOTTOMRIGHT)
(setq cursor exwm-floating--cursor-bottom-right
exwm-floating--moveresize-calculate
(lambda (x y)
(vector buffer-or-id
(eval-when-compile
(logior xcb:ConfigWindow:Width
xcb:ConfigWindow:Height))
0 0 (- x (- root-x width))
(- y (- root-y height))))))
((= type xcb:ewmh:_NET_WM_MOVERESIZE_SIZE_BOTTOM)
(setq cursor exwm-floating--cursor-bottom
exwm-floating--moveresize-calculate
(lambda (_x y)
(vector buffer-or-id
xcb:ConfigWindow:Height
0 0 0 (- y (- root-y height))))))
((= type xcb:ewmh:_NET_WM_MOVERESIZE_SIZE_BOTTOMLEFT)
(setq cursor exwm-floating--cursor-bottom-left
exwm-floating--moveresize-calculate
(lambda (x y)
(vector buffer-or-id
(eval-when-compile
(logior xcb:ConfigWindow:X
xcb:ConfigWindow:Width
xcb:ConfigWindow:Height))
(- x win-x)
0
(- (+ root-x width) x)
(- y (- root-y height))))))
((= type xcb:ewmh:_NET_WM_MOVERESIZE_SIZE_LEFT)
(setq cursor exwm-floating--cursor-left
exwm-floating--moveresize-calculate
(lambda (x _y)
(vector buffer-or-id
(eval-when-compile
(logior xcb:ConfigWindow:X
xcb:ConfigWindow:Width))
(- x win-x) 0 (- (+ root-x width) x) 0)))))
;; Select events and change cursor (should always succeed)
(xcb:+request-unchecked+reply exwm--connection
(make-instance 'xcb:GrabPointer
:owner-events 0 :grab-window container-or-id
:event-mask (eval-when-compile
(logior xcb:EventMask:ButtonRelease
xcb:EventMask:ButtonMotion))
:pointer-mode xcb:GrabMode:Async
:keyboard-mode xcb:GrabMode:Async
:confine-to xcb:Window:None
:cursor cursor
:time xcb:Time:CurrentTime)))))))
(defun exwm-floating--stop-moveresize (&rest _args)
"Stop move/resize."
(exwm--log)
(xcb:+request exwm--connection
(make-instance 'xcb:UngrabPointer :time xcb:Time:CurrentTime))
(when exwm-floating--moveresize-calculate
(let (result buffer-or-id outer-id container-id)
(setq result (funcall exwm-floating--moveresize-calculate 0 0)
buffer-or-id (aref result 0))
(when (bufferp buffer-or-id)
(with-current-buffer buffer-or-id
(setq outer-id (frame-parameter exwm--floating-frame 'exwm-outer-id)
container-id (frame-parameter exwm--floating-frame
'exwm-container))
(with-slots (x y width height border-width)
(xcb:+request-unchecked+reply exwm--connection
(make-instance 'xcb:GetGeometry
:drawable container-id))
;; Notify Emacs frame about this the position change.
(xcb:+request exwm--connection
(make-instance 'xcb:SendEvent
:propagate 0
:destination outer-id
:event-mask xcb:EventMask:StructureNotify
:event
(xcb:marshal
(make-instance 'xcb:ConfigureNotify
:event outer-id
:window outer-id
:above-sibling xcb:Window:None
:x (+ x border-width)
:y (+ y border-width)
:width width
:height height
:border-width 0
:override-redirect 0)
exwm--connection)))
(xcb:flush exwm--connection))
(exwm-layout--show exwm--id
(frame-root-window exwm--floating-frame)))))
(setq exwm-floating--moveresize-calculate nil)))
(defun exwm-floating--do-moveresize (data _synthetic)
"Perform move/resize."
(when exwm-floating--moveresize-calculate
(let* ((obj (make-instance 'xcb:MotionNotify))
result value-mask x y width height buffer-or-id container-or-id)
(xcb:unmarshal obj data)
(setq result (funcall exwm-floating--moveresize-calculate
(slot-value obj 'root-x) (slot-value obj 'root-y))
buffer-or-id (aref result 0)
value-mask (aref result 1)
x (aref result 2)
y (aref result 3)
width (max 1 (aref result 4))
height (max 1 (aref result 5)))
(if (not (bufferp buffer-or-id))
;; Unmanaged.
(setq container-or-id buffer-or-id)
;; Managed.
(setq container-or-id
(with-current-buffer buffer-or-id
(frame-parameter exwm--floating-frame 'exwm-container))
x (- x exwm-floating-border-width)
;; Use `frame-outer-height' in the future.
y (- y exwm-floating-border-width
exwm-workspace--window-y-offset)
height (+ height exwm-workspace--window-y-offset)))
(xcb:+request exwm--connection
(make-instance 'xcb:ConfigureWindow
:window container-or-id
:value-mask (aref result 1)
:x x
:y y
:width width
:height height))
(when (bufferp buffer-or-id)
;; Managed.
(setq value-mask (logand value-mask (logior xcb:ConfigWindow:Width
xcb:ConfigWindow:Height)))
(when (/= 0 value-mask)
(with-current-buffer buffer-or-id
(xcb:+request exwm--connection
(make-instance 'xcb:ConfigureWindow
:window (frame-parameter exwm--floating-frame
'exwm-outer-id)
:value-mask value-mask
:width width
:height height)))))
(xcb:flush exwm--connection))))
(defun exwm-floating-move (&optional delta-x delta-y)
"Move a floating window right by DELTA-X pixels and down by DELTA-Y pixels.
Both DELTA-X and DELTA-Y default to 1. This command should be bound locally."
(exwm--log "delta-x: %s, delta-y: %s" delta-x delta-y)
(unless (and (derived-mode-p 'exwm-mode) exwm--floating-frame)
(user-error "[EXWM] `exwm-floating-move' is only for floating X windows"))
(unless delta-x (setq delta-x 1))
(unless delta-y (setq delta-y 1))
(unless (and (= 0 delta-x) (= 0 delta-y))
(let* ((floating-container (frame-parameter exwm--floating-frame
'exwm-container))
(geometry (xcb:+request-unchecked+reply exwm--connection
(make-instance 'xcb:GetGeometry
:drawable floating-container)))
(edges (window-inside-absolute-pixel-edges)))
(with-slots (x y) geometry
(exwm--set-geometry floating-container
(+ x delta-x) (+ y delta-y) nil nil))
(exwm--set-geometry exwm--id
(+ (pop edges) delta-x)
(+ (pop edges) delta-y)
nil nil))
(xcb:flush exwm--connection)))
(defun exwm-floating--init ()
"Initialize floating module."
(exwm--log)
;; Initialize cursors for moving/resizing a window
(xcb:cursor:init exwm--connection)
(setq exwm-floating--cursor-move
(xcb:cursor:load-cursor exwm--connection "fleur")
exwm-floating--cursor-top-left
(xcb:cursor:load-cursor exwm--connection "top_left_corner")
exwm-floating--cursor-top
(xcb:cursor:load-cursor exwm--connection "top_side")
exwm-floating--cursor-top-right
(xcb:cursor:load-cursor exwm--connection "top_right_corner")
exwm-floating--cursor-right
(xcb:cursor:load-cursor exwm--connection "right_side")
exwm-floating--cursor-bottom-right
(xcb:cursor:load-cursor exwm--connection "bottom_right_corner")
exwm-floating--cursor-bottom
(xcb:cursor:load-cursor exwm--connection "bottom_side")
exwm-floating--cursor-bottom-left
(xcb:cursor:load-cursor exwm--connection "bottom_left_corner")
exwm-floating--cursor-left
(xcb:cursor:load-cursor exwm--connection "left_side")))
(defun exwm-floating--exit ()
"Exit the floating module."
(exwm--log))
(provide 'exwm-floating)
;;; exwm-floating.el ends here

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;;; exwm-layout.el --- Layout 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 is responsible for keeping X client window properly displayed.
;;; Code:
(require 'exwm-core)
(defgroup exwm-layout nil
"Layout."
:version "25.3"
:group 'exwm)
(defcustom exwm-layout-auto-iconify t
"Non-nil to automatically iconify unused X windows when possible."
:type 'boolean)
(defcustom exwm-layout-show-all-buffers nil
"Non-nil to allow switching to buffers on other workspaces."
:type 'boolean)
(defconst exwm-layout--floating-hidden-position -101
"Where to place hidden floating X windows.")
(defvar exwm-layout--other-buffer-exclude-buffers nil
"List of buffers that should not be selected by `other-buffer'.")
(defvar exwm-layout--other-buffer-exclude-exwm-mode-buffers nil
"When non-nil, prevent EXWM buffers from being selected by `other-buffer'.")
(defvar exwm-layout--timer nil "Timer used to track echo area changes.")
(defvar exwm-workspace--current)
(defvar exwm-workspace--frame-y-offset)
(declare-function exwm-input--release-keyboard "exwm-input.el")
(declare-function exwm-input--grab-keyboard "exwm-input.el")
(declare-function exwm-input-grab-keyboard "exwm-input.el")
(declare-function exwm-workspace--active-p "exwm-workspace.el" (frame))
(declare-function exwm-workspace--client-p "exwm-workspace.el"
(&optional frame))
(declare-function exwm-workspace--minibuffer-own-frame-p "exwm-workspace.el")
(declare-function exwm-workspace--workspace-p "exwm-workspace.el"
(workspace))
(declare-function exwm-workspace-move-window "exwm-workspace.el"
(frame-or-index &optional id))
(defun exwm-layout--set-state (id state)
"Set WM_STATE."
(exwm--log "id=#x%x" id)
(xcb:+request exwm--connection
(make-instance 'xcb:icccm:set-WM_STATE
:window id :state state :icon xcb:Window:None))
(with-current-buffer (exwm--id->buffer id)
(setq exwm-state state)))
(defun exwm-layout--iconic-state-p (&optional id)
(= xcb:icccm:WM_STATE:IconicState
(if id
(buffer-local-value 'exwm-state (exwm--id->buffer id))
exwm-state)))
(defun exwm-layout--set-ewmh-state (xwin)
"Set _NET_WM_STATE."
(with-current-buffer (exwm--id->buffer xwin)
(xcb:+request exwm--connection
(make-instance 'xcb:ewmh:set-_NET_WM_STATE
:window exwm--id
:data exwm--ewmh-state))))
(defun exwm-layout--fullscreen-p ()
(when (derived-mode-p 'exwm-mode)
(memq xcb:Atom:_NET_WM_STATE_FULLSCREEN exwm--ewmh-state)))
(defun exwm-layout--auto-iconify ()
(when (and exwm-layout-auto-iconify
(not exwm-transient-for))
(let ((xwin exwm--id)
(state exwm-state))
(dolist (pair exwm--id-buffer-alist)
(with-current-buffer (cdr pair)
(when (and exwm--floating-frame
(eq exwm-transient-for xwin)
(not (eq exwm-state state)))
(if (eq state xcb:icccm:WM_STATE:NormalState)
(exwm-layout--refresh-floating exwm--floating-frame)
(exwm-layout--hide exwm--id))))))))
(defun exwm-layout--show (id &optional window)
"Show window ID exactly fit in the Emacs window WINDOW."
(exwm--log "Show #x%x in %s" id window)
(let* ((edges (window-inside-absolute-pixel-edges window))
(x (pop edges))
(y (pop edges))
(width (- (pop edges) x))
(height (- (pop edges) y))
frame-x frame-y frame-width frame-height)
(with-current-buffer (exwm--id->buffer id)
(when exwm--floating-frame
(setq frame-width (frame-pixel-width exwm--floating-frame)
frame-height (+ (frame-pixel-height exwm--floating-frame)
;; Use `frame-outer-height' in the future.
exwm-workspace--frame-y-offset))
(when exwm--floating-frame-position
(setq frame-x (elt exwm--floating-frame-position 0)
frame-y (elt exwm--floating-frame-position 1)
x (+ x frame-x (- exwm-layout--floating-hidden-position))
y (+ y frame-y (- exwm-layout--floating-hidden-position)))
(setq exwm--floating-frame-position nil))
(exwm--set-geometry (frame-parameter exwm--floating-frame
'exwm-container)
frame-x frame-y frame-width frame-height))
(when (exwm-layout--fullscreen-p)
(with-slots ((x* x)
(y* y)
(width* width)
(height* height))
(exwm-workspace--get-geometry exwm--frame)
(setq x x*
y y*
width width*
height height*)))
(exwm--set-geometry id x y width height)
(xcb:+request exwm--connection (make-instance 'xcb:MapWindow :window id))
(exwm-layout--set-state id xcb:icccm:WM_STATE:NormalState)
(setq exwm--ewmh-state
(delq xcb:Atom:_NET_WM_STATE_HIDDEN exwm--ewmh-state))
(exwm-layout--set-ewmh-state id)
(exwm-layout--auto-iconify)))
(xcb:flush exwm--connection))
(defun exwm-layout--hide (id)
"Hide window ID."
(with-current-buffer (exwm--id->buffer id)
(unless (or (exwm-layout--iconic-state-p)
(and exwm--floating-frame
(eq 4294967295. exwm--desktop)))
(exwm--log "Hide #x%x" id)
(when exwm--floating-frame
(let* ((container (frame-parameter exwm--floating-frame
'exwm-container))
(geometry (xcb:+request-unchecked+reply exwm--connection
(make-instance 'xcb:GetGeometry
:drawable container))))
(setq exwm--floating-frame-position
(vector (slot-value geometry 'x) (slot-value geometry 'y)))
(exwm--set-geometry container exwm-layout--floating-hidden-position
exwm-layout--floating-hidden-position
1
1)))
(xcb:+request exwm--connection
(make-instance 'xcb:ChangeWindowAttributes
:window id :value-mask xcb:CW:EventMask
:event-mask xcb:EventMask:NoEvent))
(xcb:+request exwm--connection
(make-instance 'xcb:UnmapWindow :window id))
(xcb:+request exwm--connection
(make-instance 'xcb:ChangeWindowAttributes
:window id :value-mask xcb:CW:EventMask
:event-mask (exwm--get-client-event-mask)))
(exwm-layout--set-state id xcb:icccm:WM_STATE:IconicState)
(cl-pushnew xcb:Atom:_NET_WM_STATE_HIDDEN exwm--ewmh-state)
(exwm-layout--set-ewmh-state id)
(exwm-layout--auto-iconify)
(xcb:flush exwm--connection))))
;;;###autoload
(cl-defun exwm-layout-set-fullscreen (&optional id)
"Make window ID fullscreen."
(interactive)
(exwm--log "id=#x%x" (or id 0))
(unless (and (or id (derived-mode-p 'exwm-mode))
(not (exwm-layout--fullscreen-p)))
(cl-return-from exwm-layout-set-fullscreen))
(with-current-buffer (if id (exwm--id->buffer id) (window-buffer))
;; Expand the X window to fill the whole screen.
(with-slots (x y width height) (exwm-workspace--get-geometry exwm--frame)
(exwm--set-geometry exwm--id x y width height))
;; Raise the X window.
(xcb:+request exwm--connection
(make-instance 'xcb:ConfigureWindow
:window exwm--id
:value-mask (logior xcb:ConfigWindow:BorderWidth
xcb:ConfigWindow:StackMode)
:border-width 0
:stack-mode xcb:StackMode:Above))
(cl-pushnew xcb:Atom:_NET_WM_STATE_FULLSCREEN exwm--ewmh-state)
(exwm-layout--set-ewmh-state exwm--id)
(xcb:flush exwm--connection)
(set-window-dedicated-p (get-buffer-window) t)
(exwm-input--release-keyboard exwm--id)))
;;;###autoload
(cl-defun exwm-layout-unset-fullscreen (&optional id)
"Restore window from fullscreen state."
(interactive)
(exwm--log "id=#x%x" (or id 0))
(unless (and (or id (derived-mode-p 'exwm-mode))
(exwm-layout--fullscreen-p))
(cl-return-from exwm-layout-unset-fullscreen))
(with-current-buffer (if id (exwm--id->buffer id) (window-buffer))
(setq exwm--ewmh-state
(delq xcb:Atom:_NET_WM_STATE_FULLSCREEN exwm--ewmh-state))
(if exwm--floating-frame
(exwm-layout--show exwm--id (frame-root-window exwm--floating-frame))
(xcb:+request exwm--connection
(make-instance 'xcb:ConfigureWindow
:window exwm--id
:value-mask (logior xcb:ConfigWindow:Sibling
xcb:ConfigWindow:StackMode)
:sibling exwm--guide-window
:stack-mode xcb:StackMode:Above))
(let ((window (get-buffer-window nil t)))
(when window
(exwm-layout--show exwm--id window))))
(setq exwm--ewmh-state
(delq xcb:Atom:_NET_WM_STATE_FULLSCREEN exwm--ewmh-state))
(exwm-layout--set-ewmh-state exwm--id)
(xcb:flush exwm--connection)
(set-window-dedicated-p (get-buffer-window) nil)
(when (eq 'line-mode exwm--selected-input-mode)
(exwm-input--grab-keyboard exwm--id))))
;;;###autoload
(cl-defun exwm-layout-toggle-fullscreen (&optional id)
"Toggle fullscreen mode."
(interactive (list (exwm--buffer->id (window-buffer))))
(exwm--log "id=#x%x" (or id 0))
(unless (or id (derived-mode-p 'exwm-mode))
(cl-return-from exwm-layout-toggle-fullscreen))
(when id
(with-current-buffer (exwm--id->buffer id)
(if (exwm-layout--fullscreen-p)
(exwm-layout-unset-fullscreen id)
(exwm-layout-set-fullscreen id)))))
(defun exwm-layout--other-buffer-predicate (buffer)
"Return non-nil when the BUFFER may be displayed in selected frame.
Prevents EXWM-mode buffers already being displayed on some other window from
being selected.
Should be set as `buffer-predicate' frame parameter for all
frames. Used by `other-buffer'.
When variable `exwm-layout--other-buffer-exclude-exwm-mode-buffers'
is t EXWM buffers are never selected by `other-buffer'.
When variable `exwm-layout--other-buffer-exclude-buffers' is a
list of buffers, EXWM buffers belonging to that list are never
selected by `other-buffer'."
(or (not (with-current-buffer buffer (derived-mode-p 'exwm-mode)))
(and (not exwm-layout--other-buffer-exclude-exwm-mode-buffers)
(not (memq buffer exwm-layout--other-buffer-exclude-buffers))
;; Do not select if already shown in some window.
(not (get-buffer-window buffer t)))))
(defun exwm-layout--set-client-list-stacking ()
"Set _NET_CLIENT_LIST_STACKING."
(exwm--log)
(let (id clients-floating clients clients-iconic clients-other)
(dolist (pair exwm--id-buffer-alist)
(setq id (car pair))
(with-current-buffer (cdr pair)
(if (eq exwm--frame exwm-workspace--current)
(if exwm--floating-frame
;; A floating X window on the current workspace.
(setq clients-floating (cons id clients-floating))
(if (get-buffer-window (cdr pair) exwm-workspace--current)
;; A normal tilling X window on the current workspace.
(setq clients (cons id clients))
;; An iconic tilling X window on the current workspace.
(setq clients-iconic (cons id clients-iconic))))
;; X window on other workspaces.
(setq clients-other (cons id clients-other)))))
(xcb:+request exwm--connection
(make-instance 'xcb:ewmh:set-_NET_CLIENT_LIST_STACKING
:window exwm--root
:data (vconcat (append clients-other clients-iconic
clients clients-floating))))))
(defun exwm-layout--refresh (&optional frame)
"Refresh layout."
;; `window-size-change-functions' sets this argument while
;; `window-configuration-change-hook' makes the frame selected.
(unless frame
(setq frame (selected-frame)))
(exwm--log "frame=%s" frame)
(if (not (exwm-workspace--workspace-p frame))
(if (frame-parameter frame 'exwm-outer-id)
(exwm-layout--refresh-floating frame)
(exwm-layout--refresh-other frame))
(exwm-layout--refresh-workspace frame)))
(defun exwm-layout--refresh-floating (frame)
"Refresh floating frame FRAME."
(exwm--log "Refresh floating %s" frame)
(let ((window (frame-first-window frame)))
(with-current-buffer (window-buffer window)
(when (and (derived-mode-p 'exwm-mode)
;; It may be a buffer waiting to be killed.
(exwm--id->buffer exwm--id))
(exwm--log "Refresh floating window #x%x" exwm--id)
(if (exwm-workspace--active-p exwm--frame)
(exwm-layout--show exwm--id window)
(exwm-layout--hide exwm--id))))))
(defun exwm-layout--refresh-other (frame)
"Refresh client or nox frame FRAME."
;; Other frames (e.g. terminal/graphical frame of emacsclient)
;; We shall bury all `exwm-mode' buffers in this case
(exwm--log "Refresh other %s" frame)
(let ((windows (window-list frame 'nomini)) ;exclude minibuffer
(exwm-layout--other-buffer-exclude-exwm-mode-buffers t))
(dolist (window windows)
(with-current-buffer (window-buffer window)
(when (derived-mode-p 'exwm-mode)
(if (window-prev-buffers window)
(switch-to-prev-buffer window)
(switch-to-next-buffer window)))))))
(defun exwm-layout--refresh-workspace (frame)
"Refresh workspace frame FRAME."
(exwm--log "Refresh workspace %s" frame)
;; Workspaces other than the active one can also be refreshed (RandR)
(let (covered-buffers ;EXWM-buffers covered by a new X window.
vacated-windows) ;Windows previously displaying EXWM-buffers.
(dolist (pair exwm--id-buffer-alist)
(with-current-buffer (cdr pair)
(when (and (not exwm--floating-frame) ;exclude floating X windows
(or exwm-layout-show-all-buffers
;; Exclude X windows on other workspaces
(eq frame exwm--frame)))
(let (;; List of windows in current frame displaying the `exwm-mode'
;; buffers.
(windows (get-buffer-window-list (current-buffer) 'nomini
frame)))
(if (not windows)
(when (eq frame exwm--frame)
;; Hide it if it was being shown in this workspace.
(exwm-layout--hide exwm--id))
(let ((window (car windows)))
(if (eq frame exwm--frame)
;; Show it if `frame' is active, hide otherwise.
(if (exwm-workspace--active-p frame)
(exwm-layout--show exwm--id window)
(exwm-layout--hide exwm--id))
;; It was last shown in other workspace; move it here.
(exwm-workspace-move-window frame exwm--id))
;; Vacate any other windows (in any workspace) showing this
;; `exwm-mode' buffer.
(setq vacated-windows
(append vacated-windows (remove
window
(get-buffer-window-list
(current-buffer) 'nomini t))))
;; Note any `exwm-mode' buffer is being covered by another
;; `exwm-mode' buffer. We want to avoid that `exwm-mode'
;; buffer to be reappear in any of the vacated windows.
(let ((prev-buffer (car-safe
(car-safe (window-prev-buffers window)))))
(and
prev-buffer
(with-current-buffer prev-buffer
(derived-mode-p 'exwm-mode))
(push prev-buffer covered-buffers)))))))))
;; Set some sensible buffer to vacated windows.
(let ((exwm-layout--other-buffer-exclude-buffers covered-buffers))
(dolist (window vacated-windows)
(if (window-prev-buffers window)
(switch-to-prev-buffer window)
(switch-to-next-buffer window))))
;; Make sure windows floating / on other workspaces are excluded
(let ((exwm-layout--other-buffer-exclude-exwm-mode-buffers t))
(dolist (window (window-list frame 'nomini))
(with-current-buffer (window-buffer window)
(when (and (derived-mode-p 'exwm-mode)
(or exwm--floating-frame (not (eq frame exwm--frame))))
(if (window-prev-buffers window)
(switch-to-prev-buffer window)
(switch-to-next-buffer window))))))
(exwm-layout--set-client-list-stacking)
(xcb:flush exwm--connection)))
(defun exwm-layout--on-minibuffer-setup ()
"Refresh layout when minibuffer grows."
(exwm--log)
(unless (exwm-workspace--client-p)
(exwm--defer 0 (lambda ()
(when (< 1 (window-height (minibuffer-window)))
(exwm-layout--refresh))))))
(defun exwm-layout--on-echo-area-change (&optional dirty)
"Run when message arrives or in `echo-area-clear-hook' to refresh layout."
(when (and (current-message)
(not (exwm-workspace--client-p))
(or (cl-position ?\n (current-message))
(> (length (current-message))
(frame-width exwm-workspace--current))))
(exwm--log)
(if dirty
(exwm-layout--refresh)
(exwm--defer 0 #'exwm-layout--refresh))))
;;;###autoload
(defun exwm-layout-enlarge-window (delta &optional horizontal)
"Make the selected window DELTA pixels taller.
If no argument is given, make the selected window one pixel taller. If the
optional argument HORIZONTAL is non-nil, make selected window DELTA pixels
wider. If DELTA is negative, shrink selected window by -DELTA pixels.
Normal hints are checked and regarded if the selected window is displaying an
`exwm-mode' buffer. However, this may violate the normal hints set on other X
windows."
(interactive "p")
(exwm--log)
(cond
((zerop delta)) ;no operation
((window-minibuffer-p)) ;avoid resize minibuffer-window
((not (and (derived-mode-p 'exwm-mode) exwm--floating-frame))
;; Resize on tiling layout
(unless (= 0 (window-resizable nil delta horizontal nil t)) ;not resizable
(let ((window-resize-pixelwise t))
(window-resize nil delta horizontal nil t))))
;; Resize on floating layout
(exwm--fixed-size) ;fixed size
(horizontal
(let* ((width (frame-pixel-width))
(edges (window-inside-pixel-edges))
(inner-width (- (elt edges 2) (elt edges 0)))
(margin (- width inner-width)))
(if (> delta 0)
(if (not exwm--normal-hints-max-width)
(cl-incf width delta)
(if (>= inner-width exwm--normal-hints-max-width)
(setq width nil)
(setq width (min (+ exwm--normal-hints-max-width margin)
(+ width delta)))))
(if (not exwm--normal-hints-min-width)
(cl-incf width delta)
(if (<= inner-width exwm--normal-hints-min-width)
(setq width nil)
(setq width (max (+ exwm--normal-hints-min-width margin)
(+ width delta))))))
(when (and width (> width 0))
(setf (slot-value exwm--geometry 'width) width)
(xcb:+request exwm--connection
(make-instance 'xcb:ConfigureWindow
:window (frame-parameter exwm--floating-frame
'exwm-outer-id)
:value-mask xcb:ConfigWindow:Width
:width width))
(xcb:+request exwm--connection
(make-instance 'xcb:ConfigureWindow
:window (frame-parameter exwm--floating-frame
'exwm-container)
:value-mask xcb:ConfigWindow:Width
:width width))
(xcb:flush exwm--connection))))
(t
(let* ((height (+ (frame-pixel-height) exwm-workspace--frame-y-offset))
(edges (window-inside-pixel-edges))
(inner-height (- (elt edges 3) (elt edges 1)))
(margin (- height inner-height)))
(if (> delta 0)
(if (not exwm--normal-hints-max-height)
(cl-incf height delta)
(if (>= inner-height exwm--normal-hints-max-height)
(setq height nil)
(setq height (min (+ exwm--normal-hints-max-height margin)
(+ height delta)))))
(if (not exwm--normal-hints-min-height)
(cl-incf height delta)
(if (<= inner-height exwm--normal-hints-min-height)
(setq height nil)
(setq height (max (+ exwm--normal-hints-min-height margin)
(+ height delta))))))
(when (and height (> height 0))
(setf (slot-value exwm--geometry 'height) height)
(xcb:+request exwm--connection
(make-instance 'xcb:ConfigureWindow
:window (frame-parameter exwm--floating-frame
'exwm-outer-id)
:value-mask xcb:ConfigWindow:Height
:height height))
(xcb:+request exwm--connection
(make-instance 'xcb:ConfigureWindow
:window (frame-parameter exwm--floating-frame
'exwm-container)
:value-mask xcb:ConfigWindow:Height
:height height))
(xcb:flush exwm--connection))))))
;;;###autoload
(defun exwm-layout-enlarge-window-horizontally (delta)
"Make the selected window DELTA pixels wider.
See also `exwm-layout-enlarge-window'."
(interactive "p")
(exwm--log "%s" delta)
(exwm-layout-enlarge-window delta t))
;;;###autoload
(defun exwm-layout-shrink-window (delta)
"Make the selected window DELTA pixels lower.
See also `exwm-layout-enlarge-window'."
(interactive "p")
(exwm--log "%s" delta)
(exwm-layout-enlarge-window (- delta)))
;;;###autoload
(defun exwm-layout-shrink-window-horizontally (delta)
"Make the selected window DELTA pixels narrower.
See also `exwm-layout-enlarge-window'."
(interactive "p")
(exwm--log "%s" delta)
(exwm-layout-enlarge-window (- delta) t))
;;;###autoload
(defun exwm-layout-hide-mode-line ()
"Hide mode-line."
(interactive)
(exwm--log)
(when (and (derived-mode-p 'exwm-mode) mode-line-format)
(let (mode-line-height)
(when exwm--floating-frame
(setq mode-line-height (window-mode-line-height
(frame-root-window exwm--floating-frame))))
(setq exwm--mode-line-format mode-line-format
mode-line-format nil)
(if (not exwm--floating-frame)
(exwm-layout--show exwm--id)
(set-frame-height exwm--floating-frame
(- (frame-pixel-height exwm--floating-frame)
mode-line-height)
nil t)))))
;;;###autoload
(defun exwm-layout-show-mode-line ()
"Show mode-line."
(interactive)
(exwm--log)
(when (and (derived-mode-p 'exwm-mode) (not mode-line-format))
(setq mode-line-format exwm--mode-line-format
exwm--mode-line-format nil)
(if (not exwm--floating-frame)
(exwm-layout--show exwm--id)
(set-frame-height exwm--floating-frame
(+ (frame-pixel-height exwm--floating-frame)
(window-mode-line-height (frame-root-window
exwm--floating-frame)))
nil t)
(call-interactively #'exwm-input-grab-keyboard))
(force-mode-line-update)))
;;;###autoload
(defun exwm-layout-toggle-mode-line ()
"Toggle the display of mode-line."
(interactive)
(exwm--log)
(when (derived-mode-p 'exwm-mode)
(if mode-line-format
(exwm-layout-hide-mode-line)
(exwm-layout-show-mode-line))))
(defun exwm-layout--init ()
"Initialize layout module."
;; Auto refresh layout
(exwm--log)
(add-hook 'window-configuration-change-hook #'exwm-layout--refresh)
;; The behavior of `window-configuration-change-hook' will be changed.
(when (fboundp 'window-pixel-width-before-size-change)
(add-hook 'window-size-change-functions #'exwm-layout--refresh))
(unless (exwm-workspace--minibuffer-own-frame-p)
;; Refresh when minibuffer grows
(add-hook 'minibuffer-setup-hook #'exwm-layout--on-minibuffer-setup t)
(setq exwm-layout--timer
(run-with-idle-timer 0 t #'exwm-layout--on-echo-area-change t))
(add-hook 'echo-area-clear-hook #'exwm-layout--on-echo-area-change)))
(defun exwm-layout--exit ()
"Exit the layout module."
(exwm--log)
(remove-hook 'window-configuration-change-hook #'exwm-layout--refresh)
(when (fboundp 'window-pixel-width-before-size-change)
(remove-hook 'window-size-change-functions #'exwm-layout--refresh))
(remove-hook 'minibuffer-setup-hook #'exwm-layout--on-minibuffer-setup)
(when exwm-layout--timer
(cancel-timer exwm-layout--timer)
(setq exwm-layout--timer nil))
(remove-hook 'echo-area-clear-hook #'exwm-layout--on-echo-area-change))
(provide 'exwm-layout)
;;; exwm-layout.el ends here

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@ -0,0 +1,805 @@
;;; exwm-manage.el --- Window Management Module for -*- lexical-binding: t -*-
;;; EXWM
;; 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 is the fundamental module of EXWM that deals with window management.
;;; Code:
(require 'exwm-core)
(defgroup exwm-manage nil
"Manage."
:version "25.3"
:group 'exwm)
(defcustom exwm-manage-finish-hook nil
"Normal hook run after a window is just managed, in the context of the
corresponding buffer."
:type 'hook)
(defcustom exwm-manage-force-tiling nil
"Non-nil to force managing all X windows in tiling layout.
You can still make the X windows floating afterwards."
:type 'boolean)
(defcustom exwm-manage-ping-timeout 3
"Seconds to wait before killing a client."
:type 'integer)
(defcustom exwm-manage-configurations nil
"Per-application configurations.
Configuration options allow to override various default behaviors of EXWM
and only take effect when they are present. Note for certain options
specifying nil is not exactly the same as leaving them out. Currently
possible choices:
* floating: Force floating (non-nil) or tiling (nil) on startup.
* x/y/width/height: Override the initial geometry (floating X window only).
* border-width: Override the border width (only visible when floating).
* fullscreen: Force full screen (non-nil) on startup.
* floating-mode-line: `mode-line-format' used when floating.
* tiling-mode-line: `mode-line-format' used when tiling.
* floating-header-line: `header-line-format' used when floating.
* tiling-header-line: `header-line-format' used when tiling.
* char-mode: Force char-mode (non-nil) on startup.
* prefix-keys: `exwm-input-prefix-keys' local to this X window.
* simulation-keys: `exwm-input-simulation-keys' local to this X window.
* workspace: The initial workspace.
* managed: Force to manage (non-nil) or not manage (nil) the X window.
For each X window managed for the first time, matching criteria (sexps) are
evaluated sequentially and the first configuration with a non-nil matching
criterion would be applied. Apart from generic forms, one would typically
want to match against EXWM internal variables such as `exwm-title',
`exwm-class-name' and `exwm-instance-name'."
:type '(alist :key-type (sexp :tag "Matching criterion" nil)
:value-type
(plist :tag "Configurations"
:options
(((const :tag "Floating" floating) boolean)
((const :tag "X" x) number)
((const :tag "Y" y) number)
((const :tag "Width" width) number)
((const :tag "Height" height) number)
((const :tag "Border width" border-width) integer)
((const :tag "Fullscreen" fullscreen) boolean)
((const :tag "Floating mode-line" floating-mode-line)
sexp)
((const :tag "Tiling mode-line" tiling-mode-line) sexp)
((const :tag "Floating header-line"
floating-header-line)
sexp)
((const :tag "Tiling header-line" tiling-header-line)
sexp)
((const :tag "Char-mode" char-mode) boolean)
((const :tag "Prefix keys" prefix-keys)
(repeat key-sequence))
((const :tag "Simulation keys" simulation-keys)
(alist :key-type (key-sequence :tag "From")
:value-type (key-sequence :tag "To")))
((const :tag "Workspace" workspace) integer)
((const :tag "Managed" managed) boolean)
;; For forward compatibility.
((other) sexp))))
;; TODO: This is admittedly ugly. We'd be better off with an event type.
:get (lambda (symbol)
(mapcar (lambda (pair)
(let* ((match (car pair))
(config (cdr pair))
(prefix-keys (plist-get config 'prefix-keys)))
(when prefix-keys
(setq config (copy-tree config)
config (plist-put config 'prefix-keys
(mapcar (lambda (i)
(if (sequencep i)
i
(vector i)))
prefix-keys))))
(cons match config)))
(default-value symbol)))
:set (lambda (symbol value)
(set symbol
(mapcar (lambda (pair)
(let* ((match (car pair))
(config (cdr pair))
(prefix-keys (plist-get config 'prefix-keys)))
(when prefix-keys
(setq config (copy-tree config)
config (plist-put config 'prefix-keys
(mapcar (lambda (i)
(if (sequencep i)
(aref i 0)
i))
prefix-keys))))
(cons match config)))
value))))
;; FIXME: Make the following values as small as possible.
(defconst exwm-manage--height-delta-min 5)
(defconst exwm-manage--width-delta-min 5)
;; The _MOTIF_WM_HINTS atom (see <Xm/MwmUtil.h> for more details)
;; It's currently only used in 'exwm-manage' module
(defvar exwm-manage--_MOTIF_WM_HINTS nil "_MOTIF_WM_HINTS atom.")
(defvar exwm-manage--desktop nil "The desktop X window.")
(defvar exwm-manage--frame-outer-id-list nil
"List of window-outer-id's of all frames.")
(defvar exwm-manage--ping-lock nil
"Non-nil indicates EXWM is pinging a window.")
(defvar exwm-input--skip-buffer-list-update)
(defvar exwm-input-prefix-keys)
(defvar exwm-workspace--current)
(defvar exwm-workspace--id-struts-alist)
(defvar exwm-workspace--list)
(defvar exwm-workspace--switch-history-outdated)
(defvar exwm-workspace--workareas)
(defvar exwm-workspace-current-index)
(declare-function exwm--update-class "exwm.el" (id &optional force))
(declare-function exwm--update-hints "exwm.el" (id &optional force))
(declare-function exwm--update-normal-hints "exwm.el" (id &optional force))
(declare-function exwm--update-protocols "exwm.el" (id &optional force))
(declare-function exwm--update-struts "exwm.el" (id))
(declare-function exwm--update-title "exwm.el" (id))
(declare-function exwm--update-transient-for "exwm.el" (id &optional force))
(declare-function exwm--update-desktop "exwm.el" (id &optional force))
(declare-function exwm--update-window-type "exwm.el" (id &optional force))
(declare-function exwm-floating--set-floating "exwm-floating.el" (id))
(declare-function exwm-floating--unset-floating "exwm-floating.el" (id))
(declare-function exwm-input-grab-keyboard "exwm-input.el")
(declare-function exwm-input-set-local-simulation-keys "exwm-input.el")
(declare-function exwm-layout--fullscreen-p "exwm-layout.el" ())
(declare-function exwm-layout--iconic-state-p "exwm-layout.el" (&optional id))
(declare-function exwm-workspace--position "exwm-workspace.el" (frame))
(declare-function exwm-workspace--set-fullscreen "exwm-workspace.el" (frame))
(declare-function exwm-workspace--update-struts "exwm-workspace.el" ())
(declare-function exwm-workspace--update-workareas "exwm-workspace.el" ())
(defun exwm-manage--update-geometry (id &optional force)
"Update window geometry."
(exwm--log "id=#x%x" id)
(with-current-buffer (exwm--id->buffer id)
(unless (and exwm--geometry (not force))
(let ((reply (xcb:+request-unchecked+reply exwm--connection
(make-instance 'xcb:GetGeometry :drawable id))))
(setq exwm--geometry
(or reply
;; Provide a reasonable fallback value.
(make-instance 'xcb:RECTANGLE
:x 0
:y 0
:width (/ (x-display-pixel-width) 2)
:height (/ (x-display-pixel-height) 2))))))))
(defun exwm-manage--update-ewmh-state (id)
"Update _NET_WM_STATE."
(exwm--log "id=#x%x" id)
(with-current-buffer (exwm--id->buffer id)
(unless exwm--ewmh-state
(let ((reply (xcb:+request-unchecked+reply exwm--connection
(make-instance 'xcb:ewmh:get-_NET_WM_STATE
:window id))))
(when reply
(setq exwm--ewmh-state (append (slot-value reply 'value) nil)))))))
(defun exwm-manage--update-mwm-hints (id &optional force)
"Update _MOTIF_WM_HINTS."
(exwm--log "id=#x%x" id)
(with-current-buffer (exwm--id->buffer id)
(unless (and (not exwm--mwm-hints-decorations) (not force))
(let ((reply (xcb:+request-unchecked+reply exwm--connection
(make-instance 'xcb:icccm:-GetProperty
:window id
:property exwm-manage--_MOTIF_WM_HINTS
:type exwm-manage--_MOTIF_WM_HINTS
:long-length 5))))
(when reply
;; Check MotifWmHints.decorations.
(with-slots (value) reply
(setq value (append value nil))
(when (and value
;; See <Xm/MwmUtil.h> for fields definitions.
(/= 0 (logand
(elt value 0) ;MotifWmHints.flags
2)) ;MWM_HINTS_DECORATIONS
(= 0
(elt value 2))) ;MotifWmHints.decorations
(setq exwm--mwm-hints-decorations nil))))))))
(defun exwm-manage--set-client-list ()
"Set _NET_CLIENT_LIST."
(exwm--log)
(xcb:+request exwm--connection
(make-instance 'xcb:ewmh:set-_NET_CLIENT_LIST
:window exwm--root
:data (vconcat (mapcar #'car exwm--id-buffer-alist)))))
(cl-defun exwm-manage--get-configurations ()
"Retrieve configurations for this buffer."
(exwm--log)
(when (derived-mode-p 'exwm-mode)
(dolist (i exwm-manage-configurations)
(save-current-buffer
(when (with-demoted-errors "Problematic configuration: %S"
(eval (car i) t))
(cl-return-from exwm-manage--get-configurations (cdr i)))))))
(defun exwm-manage--manage-window (id)
"Manage window ID."
(exwm--log "Try to manage #x%x" id)
(catch 'return
;; Ensure it's alive
(when (xcb:+request-checked+request-check exwm--connection
(make-instance 'xcb:ChangeWindowAttributes
:window id :value-mask xcb:CW:EventMask
:event-mask (exwm--get-client-event-mask)))
(throw 'return 'dead))
;; Add this X window to save-set.
(xcb:+request exwm--connection
(make-instance 'xcb:ChangeSaveSet
:mode xcb:SetMode:Insert
:window id))
(with-current-buffer (let ((exwm-input--skip-buffer-list-update t))
(generate-new-buffer "*EXWM*"))
;; Keep the oldest X window first.
(setq exwm--id-buffer-alist
(nconc exwm--id-buffer-alist `((,id . ,(current-buffer)))))
(exwm-mode)
(setq exwm--id id
exwm--frame exwm-workspace--current)
(exwm--update-window-type id)
(exwm--update-class id)
(exwm--update-transient-for id)
(exwm--update-normal-hints id)
(exwm--update-hints id)
(exwm-manage--update-geometry id)
(exwm-manage--update-mwm-hints id)
(exwm--update-title id)
(exwm--update-protocols id)
(setq exwm--configurations (exwm-manage--get-configurations))
;; OverrideRedirect is not checked here.
(when (and
;; The user has specified to manage it.
(not (plist-get exwm--configurations 'managed))
(or
;; The user has specified not to manage it.
(plist-member exwm--configurations 'managed)
;; This is not a type of X window we can manage.
(and exwm-window-type
(not (cl-intersection
exwm-window-type
(list xcb:Atom:_NET_WM_WINDOW_TYPE_UTILITY
xcb:Atom:_NET_WM_WINDOW_TYPE_DIALOG
xcb:Atom:_NET_WM_WINDOW_TYPE_NORMAL))))
;; Check the _MOTIF_WM_HINTS property to not manage floating X
;; windows without decoration.
(and (not exwm--mwm-hints-decorations)
(not exwm--hints-input)
;; Floating windows only
(or exwm-transient-for exwm--fixed-size
(memq xcb:Atom:_NET_WM_WINDOW_TYPE_UTILITY
exwm-window-type)
(memq xcb:Atom:_NET_WM_WINDOW_TYPE_DIALOG
exwm-window-type)))))
(exwm--log "No need to manage #x%x" id)
;; Update struts.
(when (memq xcb:Atom:_NET_WM_WINDOW_TYPE_DOCK exwm-window-type)
(exwm--update-struts id))
;; Remove all events
(xcb:+request exwm--connection
(make-instance 'xcb:ChangeWindowAttributes
:window id :value-mask xcb:CW:EventMask
:event-mask
(if (memq xcb:Atom:_NET_WM_WINDOW_TYPE_DOCK
exwm-window-type)
;; Listen for PropertyChange (struts) and
;; UnmapNotify/DestroyNotify event of the dock.
(exwm--get-client-event-mask)
xcb:EventMask:NoEvent)))
;; The window needs to be mapped
(xcb:+request exwm--connection
(make-instance 'xcb:MapWindow :window id))
(with-slots (x y width height) exwm--geometry
;; Center window of type _NET_WM_WINDOW_TYPE_SPLASH
(when (memq xcb:Atom:_NET_WM_WINDOW_TYPE_SPLASH exwm-window-type)
(let* ((workarea (elt exwm-workspace--workareas
(exwm-workspace--position exwm--frame)))
(x* (aref workarea 0))
(y* (aref workarea 1))
(width* (aref workarea 2))
(height* (aref workarea 3)))
(exwm--set-geometry id
(+ x* (/ (- width* width) 2))
(+ y* (/ (- height* height) 2))
nil
nil))))
;; Check for desktop.
(when (memq xcb:Atom:_NET_WM_WINDOW_TYPE_DESKTOP exwm-window-type)
;; There should be only one desktop X window.
(setq exwm-manage--desktop id)
;; Put it at bottom.
(xcb:+request exwm--connection
(make-instance 'xcb:ConfigureWindow
:window id
:value-mask xcb:ConfigWindow:StackMode
:stack-mode xcb:StackMode:Below)))
(xcb:flush exwm--connection)
(setq exwm--id-buffer-alist (assq-delete-all id exwm--id-buffer-alist))
(let ((kill-buffer-query-functions nil)
(exwm-input--skip-buffer-list-update t))
(kill-buffer (current-buffer)))
(throw 'return 'ignored))
(let ((index (plist-get exwm--configurations 'workspace)))
(when (and index (< index (length exwm-workspace--list)))
(setq exwm--frame (elt exwm-workspace--list index))))
;; Manage the window
(exwm--log "Manage #x%x" id)
(xcb:+request exwm--connection ;remove border
(make-instance 'xcb:ConfigureWindow
:window id :value-mask xcb:ConfigWindow:BorderWidth
:border-width 0))
(dolist (button ;grab buttons to set focus / move / resize
(list xcb:ButtonIndex:1 xcb:ButtonIndex:2 xcb:ButtonIndex:3))
(xcb:+request exwm--connection
(make-instance 'xcb:GrabButton
:owner-events 0 :grab-window id
:event-mask xcb:EventMask:ButtonPress
:pointer-mode xcb:GrabMode:Sync
:keyboard-mode xcb:GrabMode:Async
:confine-to xcb:Window:None :cursor xcb:Cursor:None
:button button :modifiers xcb:ModMask:Any)))
(exwm-manage--set-client-list)
(xcb:flush exwm--connection)
(if (plist-member exwm--configurations 'floating)
;; User has specified whether it should be floating.
(if (plist-get exwm--configurations 'floating)
(exwm-floating--set-floating id)
(with-selected-window (frame-selected-window exwm--frame)
(exwm-floating--unset-floating id)))
;; Try to determine if it should be floating.
(if (and (not exwm-manage-force-tiling)
(or exwm-transient-for exwm--fixed-size
(memq xcb:Atom:_NET_WM_WINDOW_TYPE_UTILITY
exwm-window-type)
(memq xcb:Atom:_NET_WM_WINDOW_TYPE_DIALOG
exwm-window-type)))
(exwm-floating--set-floating id)
(with-selected-window (frame-selected-window exwm--frame)
(exwm-floating--unset-floating id))))
(if (plist-get exwm--configurations 'char-mode)
(exwm-input-release-keyboard id)
(exwm-input-grab-keyboard id))
(let ((simulation-keys (plist-get exwm--configurations 'simulation-keys))
(prefix-keys (plist-get exwm--configurations 'prefix-keys)))
(with-current-buffer (exwm--id->buffer id)
(when simulation-keys
(exwm-input-set-local-simulation-keys simulation-keys))
(when prefix-keys
(setq-local exwm-input-prefix-keys prefix-keys))))
(setq exwm-workspace--switch-history-outdated t)
(exwm--update-desktop id)
(exwm-manage--update-ewmh-state id)
(with-current-buffer (exwm--id->buffer id)
(when (or (plist-get exwm--configurations 'fullscreen)
(exwm-layout--fullscreen-p))
(setq exwm--ewmh-state (delq xcb:Atom:_NET_WM_STATE_FULLSCREEN
exwm--ewmh-state))
(exwm-layout-set-fullscreen id))
(run-hooks 'exwm-manage-finish-hook)))))
(defun exwm-manage--unmanage-window (id &optional withdraw-only)
"Unmanage window ID.
If WITHDRAW-ONLY is non-nil, the X window will be properly placed back to the
root window. Set WITHDRAW-ONLY to 'quit if this functions is used when window
manager is shutting down."
(let ((buffer (exwm--id->buffer id)))
(exwm--log "Unmanage #x%x (buffer: %s, widthdraw: %s)"
id buffer withdraw-only)
(setq exwm--id-buffer-alist (assq-delete-all id exwm--id-buffer-alist))
;; Update workspaces when a dock is destroyed.
(when (and (null withdraw-only)
(assq id exwm-workspace--id-struts-alist))
(setq exwm-workspace--id-struts-alist
(assq-delete-all id exwm-workspace--id-struts-alist))
(exwm-workspace--update-struts)
(exwm-workspace--update-workareas)
(dolist (f exwm-workspace--list)
(exwm-workspace--set-fullscreen f)))
(when (buffer-live-p buffer)
(with-current-buffer buffer
;; Unmap the X window.
(xcb:+request exwm--connection
(make-instance 'xcb:UnmapWindow :window id))
;;
(setq exwm-workspace--switch-history-outdated t)
;;
(when withdraw-only
(xcb:+request exwm--connection
(make-instance 'xcb:ChangeWindowAttributes
:window id :value-mask xcb:CW:EventMask
:event-mask xcb:EventMask:NoEvent))
;; Delete WM_STATE property
(xcb:+request exwm--connection
(make-instance 'xcb:DeleteProperty
:window id :property xcb:Atom:WM_STATE))
(cond
((eq withdraw-only 'quit)
;; Remap the window when exiting.
(xcb:+request exwm--connection
(make-instance 'xcb:MapWindow :window id)))
(t
;; Remove _NET_WM_DESKTOP.
(xcb:+request exwm--connection
(make-instance 'xcb:DeleteProperty
:window id
:property xcb:Atom:_NET_WM_DESKTOP)))))
(when exwm--floating-frame
;; Unmap the floating frame before destroying its container.
(let ((window (frame-parameter exwm--floating-frame 'exwm-outer-id))
(container (frame-parameter exwm--floating-frame
'exwm-container)))
(xcb:+request exwm--connection
(make-instance 'xcb:UnmapWindow :window window))
(xcb:+request exwm--connection
(make-instance 'xcb:ReparentWindow
:window window :parent exwm--root :x 0 :y 0))
(xcb:+request exwm--connection
(make-instance 'xcb:DestroyWindow :window container))))
(when (exwm-layout--fullscreen-p)
(let ((window (get-buffer-window)))
(when window
(set-window-dedicated-p window nil))))
(exwm-manage--set-client-list)
(xcb:flush exwm--connection))
(let ((kill-buffer-func
(lambda (buffer)
(when (buffer-local-value 'exwm--floating-frame buffer)
(select-window
(frame-selected-window exwm-workspace--current)))
(with-current-buffer buffer
(let ((kill-buffer-query-functions nil))
(kill-buffer buffer))))))
(exwm--defer 0 kill-buffer-func buffer)
(when (active-minibuffer-window)
(exit-minibuffer))))))
(defun exwm-manage--scan ()
"Search for existing windows and try to manage them."
(exwm--log)
(let* ((tree (xcb:+request-unchecked+reply exwm--connection
(make-instance 'xcb:QueryTree
:window exwm--root)))
reply)
(dolist (i (slot-value tree 'children))
(setq reply (xcb:+request-unchecked+reply exwm--connection
(make-instance 'xcb:GetWindowAttributes
:window i)))
;; It's possible the X window has been destroyed.
(when reply
(with-slots (override-redirect map-state) reply
(when (and (= 0 override-redirect)
(= xcb:MapState:Viewable map-state))
(xcb:+request exwm--connection
(make-instance 'xcb:UnmapWindow
:window i))
(xcb:flush exwm--connection)
(exwm-manage--manage-window i)))))))
(defun exwm-manage--kill-buffer-query-function ()
"Run in `kill-buffer-query-functions'."
(exwm--log "id=#x%x; buffer=%s" exwm--id (current-buffer))
(catch 'return
(when (or (not exwm--id)
(xcb:+request-checked+request-check exwm--connection
(make-instance 'xcb:ChangeWindowAttributes
:window exwm--id
:value-mask xcb:CW:EventMask
:event-mask (exwm--get-client-event-mask))))
;; The X window is no longer alive so just close the buffer.
(when exwm--floating-frame
(let ((window (frame-parameter exwm--floating-frame 'exwm-outer-id))
(container (frame-parameter exwm--floating-frame
'exwm-container)))
(xcb:+request exwm--connection
(make-instance 'xcb:UnmapWindow :window window))
(xcb:+request exwm--connection
(make-instance 'xcb:ReparentWindow
:window window
:parent exwm--root
:x 0 :y 0))
(xcb:+request exwm--connection
(make-instance 'xcb:DestroyWindow
:window container))))
(xcb:flush exwm--connection)
(throw 'return t))
(unless (memq xcb:Atom:WM_DELETE_WINDOW exwm--protocols)
;; The X window does not support WM_DELETE_WINDOW; destroy it.
(xcb:+request exwm--connection
(make-instance 'xcb:DestroyWindow :window exwm--id))
(xcb:flush exwm--connection)
;; Wait for DestroyNotify event.
(throw 'return nil))
(let ((id exwm--id))
;; Try to close the X window with WM_DELETE_WINDOW client message.
(xcb:+request exwm--connection
(make-instance 'xcb:icccm:SendEvent
:destination id
:event (xcb:marshal
(make-instance 'xcb:icccm:WM_DELETE_WINDOW
:window id)
exwm--connection)))
(xcb:flush exwm--connection)
;;
(unless (memq xcb:Atom:_NET_WM_PING exwm--protocols)
;; For X windows without _NET_WM_PING support, we'd better just
;; wait for DestroyNotify events.
(throw 'return nil))
;; Try to determine if the X window is dead with _NET_WM_PING.
(setq exwm-manage--ping-lock t)
(xcb:+request exwm--connection
(make-instance 'xcb:SendEvent
:propagate 0
:destination id
:event-mask xcb:EventMask:NoEvent
:event (xcb:marshal
(make-instance 'xcb:ewmh:_NET_WM_PING
:window id
:timestamp 0
:client-window id)
exwm--connection)))
(xcb:flush exwm--connection)
(with-timeout (exwm-manage-ping-timeout
(if (y-or-n-p (format "'%s' is not responding. \
Would you like to kill it? "
(buffer-name)))
(progn (exwm-manage--kill-client id)
;; Kill the unresponsive X window and
;; wait for DestroyNotify event.
(throw 'return nil))
;; Give up.
(throw 'return nil)))
(while (and exwm-manage--ping-lock
(exwm--id->buffer id)) ;may have been destroyed.
(accept-process-output nil 0.1))
;; Give up.
(throw 'return nil)))))
(defun exwm-manage--kill-client (&optional id)
"Kill an X client."
(unless id (setq id (exwm--buffer->id (current-buffer))))
(exwm--log "id=#x%x" id)
(let* ((response (xcb:+request-unchecked+reply exwm--connection
(make-instance 'xcb:ewmh:get-_NET_WM_PID :window id)))
(pid (and response (slot-value response 'value)))
(request (make-instance 'xcb:KillClient :resource id)))
(if (not pid)
(xcb:+request exwm--connection request)
;; What if the PID is fake/wrong?
(signal-process pid 'SIGKILL)
;; Ensure it's dead
(run-with-timer exwm-manage-ping-timeout nil
(lambda ()
(xcb:+request exwm--connection request))))
(xcb:flush exwm--connection)))
(defun exwm-manage--add-frame (frame)
"Run in `after-make-frame-functions'."
(exwm--log "frame=%s" frame)
(when (display-graphic-p frame)
(push (string-to-number (frame-parameter frame 'outer-window-id))
exwm-manage--frame-outer-id-list)))
(defun exwm-manage--remove-frame (frame)
"Run in `delete-frame-functions'."
(exwm--log "frame=%s" frame)
(when (display-graphic-p frame)
(setq exwm-manage--frame-outer-id-list
(delq (string-to-number (frame-parameter frame 'outer-window-id))
exwm-manage--frame-outer-id-list))))
(defun exwm-manage--on-ConfigureRequest (data _synthetic)
"Handle ConfigureRequest event."
(exwm--log)
(let ((obj (make-instance 'xcb:ConfigureRequest))
buffer edges width-delta height-delta)
(xcb:unmarshal obj data)
(with-slots (window x y width height
border-width sibling stack-mode value-mask)
obj
(exwm--log "#x%x (#x%x) @%dx%d%+d%+d; \
border-width: %d; sibling: #x%x; stack-mode: %d"
window value-mask width height x y
border-width sibling stack-mode)
(if (and (setq buffer (exwm--id->buffer window))
(with-current-buffer buffer
(or (exwm-layout--fullscreen-p)
;; Make sure it's a floating X window wanting to resize
;; itself.
(or (not exwm--floating-frame)
(progn
(setq edges
(window-inside-pixel-edges
(get-buffer-window buffer t))
width-delta (- width (- (elt edges 2)
(elt edges 0)))
height-delta (- height (- (elt edges 3)
(elt edges 1))))
;; We cannot do resizing precisely for now.
(and (if (= 0 (logand value-mask
xcb:ConfigWindow:Width))
t
(< (abs width-delta)
exwm-manage--width-delta-min))
(if (= 0 (logand value-mask
xcb:ConfigWindow:Height))
t
(< (abs height-delta)
exwm-manage--height-delta-min))))))))
;; Send client message for managed windows
(with-current-buffer buffer
(setq edges
(if (exwm-layout--fullscreen-p)
(with-slots (x y width height)
(exwm-workspace--get-geometry exwm--frame)
(list x y width height))
(window-inside-absolute-pixel-edges
(get-buffer-window buffer t))))
(exwm--log "Reply with ConfigureNotify (edges): %s" edges)
(xcb:+request exwm--connection
(make-instance 'xcb:SendEvent
:propagate 0 :destination window
:event-mask xcb:EventMask:StructureNotify
:event (xcb:marshal
(make-instance
'xcb:ConfigureNotify
:event window :window window
:above-sibling xcb:Window:None
:x (elt edges 0) :y (elt edges 1)
:width (- (elt edges 2) (elt edges 0))
:height (- (elt edges 3) (elt edges 1))
:border-width 0 :override-redirect 0)
exwm--connection))))
(if buffer
(with-current-buffer buffer
(exwm--log "ConfigureWindow (resize floating X window)")
(exwm--set-geometry (frame-parameter exwm--floating-frame
'exwm-outer-id)
nil
nil
(+ (frame-pixel-width exwm--floating-frame)
width-delta)
(+ (frame-pixel-height exwm--floating-frame)
height-delta)))
(exwm--log "ConfigureWindow (preserve geometry)")
;; Configure the unmanaged window.
;; But Emacs frames should be excluded. Generally we don't
;; receive ConfigureRequest events from Emacs frames since we
;; have set OverrideRedirect on them, but this is not true for
;; Lucid build (as of 25.1).
(unless (memq window exwm-manage--frame-outer-id-list)
(xcb:+request exwm--connection
(make-instance 'xcb:ConfigureWindow
:window window
:value-mask value-mask
:x x :y y :width width :height height
:border-width border-width
:sibling sibling
:stack-mode stack-mode)))))))
(xcb:flush exwm--connection))
(defun exwm-manage--on-MapRequest (data _synthetic)
"Handle MapRequest event."
(let ((obj (make-instance 'xcb:MapRequest)))
(xcb:unmarshal obj data)
(with-slots (parent window) obj
(exwm--log "id=#x%x parent=#x%x" window parent)
(if (assoc window exwm--id-buffer-alist)
(with-current-buffer (exwm--id->buffer window)
(if (exwm-layout--iconic-state-p)
;; State change: iconic => normal.
(when (eq exwm--frame exwm-workspace--current)
(pop-to-buffer-same-window (current-buffer)))
(exwm--log "#x%x is already managed" window)))
(if (/= exwm--root parent)
(progn (xcb:+request exwm--connection
(make-instance 'xcb:MapWindow :window window))
(xcb:flush exwm--connection))
(exwm--log "#x%x" window)
(exwm-manage--manage-window window))))))
(defun exwm-manage--on-UnmapNotify (data _synthetic)
"Handle UnmapNotify event."
(let ((obj (make-instance 'xcb:UnmapNotify)))
(xcb:unmarshal obj data)
(with-slots (window) obj
(exwm--log "id=#x%x" window)
(exwm-manage--unmanage-window window t))))
(defun exwm-manage--on-MapNotify (data _synthetic)
"Handle MapNotify event."
(let ((obj (make-instance 'xcb:MapNotify)))
(xcb:unmarshal obj data)
(with-slots (window) obj
(when (assoc window exwm--id-buffer-alist)
(exwm--log "id=#x%x" window)
;; With this we ensure that a "window hierarchy change" happens after
;; mapping the window, as some servers (XQuartz) do not generate it.
(with-current-buffer (exwm--id->buffer window)
(if exwm--floating-frame
(xcb:+request exwm--connection
(make-instance 'xcb:ConfigureWindow
:window window
:value-mask xcb:ConfigWindow:StackMode
:stack-mode xcb:StackMode:Above))
(xcb:+request exwm--connection
(make-instance 'xcb:ConfigureWindow
:window window
:value-mask (logior xcb:ConfigWindow:Sibling
xcb:ConfigWindow:StackMode)
:sibling exwm--guide-window
:stack-mode xcb:StackMode:Above))))
(xcb:flush exwm--connection)))))
(defun exwm-manage--on-DestroyNotify (data synthetic)
"Handle DestroyNotify event."
(unless synthetic
(exwm--log)
(let ((obj (make-instance 'xcb:DestroyNotify)))
(xcb:unmarshal obj data)
(exwm--log "#x%x" (slot-value obj 'window))
(exwm-manage--unmanage-window (slot-value obj 'window)))))
(defun exwm-manage--init ()
"Initialize manage module."
;; Intern _MOTIF_WM_HINTS
(exwm--log)
(setq exwm-manage--_MOTIF_WM_HINTS (exwm--intern-atom "_MOTIF_WM_HINTS"))
(add-hook 'after-make-frame-functions #'exwm-manage--add-frame)
(add-hook 'delete-frame-functions #'exwm-manage--remove-frame)
(xcb:+event exwm--connection 'xcb:ConfigureRequest
#'exwm-manage--on-ConfigureRequest)
(xcb:+event exwm--connection 'xcb:MapRequest #'exwm-manage--on-MapRequest)
(xcb:+event exwm--connection 'xcb:UnmapNotify #'exwm-manage--on-UnmapNotify)
(xcb:+event exwm--connection 'xcb:MapNotify #'exwm-manage--on-MapNotify)
(xcb:+event exwm--connection 'xcb:DestroyNotify
#'exwm-manage--on-DestroyNotify))
(defun exwm-manage--exit ()
"Exit the manage module."
(exwm--log)
(dolist (pair exwm--id-buffer-alist)
(exwm-manage--unmanage-window (car pair) 'quit))
(remove-hook 'after-make-frame-functions #'exwm-manage--add-frame)
(remove-hook 'delete-frame-functions #'exwm-manage--remove-frame)
(setq exwm-manage--_MOTIF_WM_HINTS nil))
(provide 'exwm-manage)
;;; exwm-manage.el ends here

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;;; 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

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;;; exwm-systemtray.el --- System Tray Module for -*- lexical-binding: t -*-
;;; EXWM
;; Copyright (C) 2016-2020 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 system tray support for EXWM.
;; To use this module, load and enable it as follows:
;; (require 'exwm-systemtray)
;; (exwm-systemtray-enable)
;;; Code:
(require 'xcb-icccm)
(require 'xcb-xembed)
(require 'xcb-systemtray)
(require 'exwm-core)
(require 'exwm-workspace)
(defclass exwm-systemtray--icon ()
((width :initarg :width)
(height :initarg :height)
(visible :initarg :visible))
:documentation "Attributes of a system tray icon.")
(defclass xcb:systemtray:-ClientMessage
(xcb:icccm:--ClientMessage xcb:ClientMessage)
((format :initform 32)
(type :initform xcb:Atom:MANAGER)
(time :initarg :time :type xcb:TIMESTAMP) ;new slot
(selection :initarg :selection :type xcb:ATOM) ;new slot
(owner :initarg :owner :type xcb:WINDOW)) ;new slot
:documentation "A systemtray client message.")
(defgroup exwm-systemtray nil
"System tray."
:version "25.3"
:group 'exwm)
(defcustom exwm-systemtray-height nil
"System tray height.
You shall use the default value if using auto-hide minibuffer."
:type 'integer)
(defcustom exwm-systemtray-icon-gap 2
"Gap between icons."
:type 'integer)
(defvar exwm-systemtray--embedder-window nil "The embedder window.")
(defcustom exwm-systemtray-background-color nil
"Background color of systemtray.
This should be a color, or nil for transparent background."
:type '(choice (const :tag "Transparent" nil)
(color))
:initialize #'custom-initialize-default
:set (lambda (symbol value)
(set-default symbol value)
;; Change the background color for embedder.
(when (and exwm--connection
exwm-systemtray--embedder-window)
(let ((background-pixel (exwm--color->pixel value)))
(xcb:+request exwm--connection
(make-instance 'xcb:ChangeWindowAttributes
:window exwm-systemtray--embedder-window
:value-mask (logior xcb:CW:BackPixmap
(if background-pixel
xcb:CW:BackPixel 0))
:background-pixmap
xcb:BackPixmap:ParentRelative
:background-pixel background-pixel))
;; Unmap & map to take effect immediately.
(xcb:+request exwm--connection
(make-instance 'xcb:UnmapWindow
:window exwm-systemtray--embedder-window))
(xcb:+request exwm--connection
(make-instance 'xcb:MapWindow
:window exwm-systemtray--embedder-window))
(xcb:flush exwm--connection)))))
;; GTK icons require at least 16 pixels to show normally.
(defconst exwm-systemtray--icon-min-size 16 "Minimum icon size.")
(defvar exwm-systemtray--connection nil "The X connection.")
(defvar exwm-systemtray--list nil "The icon list.")
(defvar exwm-systemtray--selection-owner-window nil
"The selection owner window.")
(defvar xcb:Atom:_NET_SYSTEM_TRAY_S0)
(defun exwm-systemtray--embed (icon)
"Embed an icon."
(exwm--log "Try to embed #x%x" icon)
(let ((info (xcb:+request-unchecked+reply exwm-systemtray--connection
(make-instance 'xcb:xembed:get-_XEMBED_INFO
:window icon)))
width* height* visible)
(when info
(exwm--log "Embed #x%x" icon)
(with-slots (width height)
(xcb:+request-unchecked+reply exwm-systemtray--connection
(make-instance 'xcb:GetGeometry :drawable icon))
(setq height* exwm-systemtray-height
width* (round (* width (/ (float height*) height))))
(when (< width* exwm-systemtray--icon-min-size)
(setq width* exwm-systemtray--icon-min-size
height* (round (* height (/ (float width*) width)))))
(exwm--log "Resize from %dx%d to %dx%d"
width height width* height*))
;; Add this icon to save-set.
(xcb:+request exwm-systemtray--connection
(make-instance 'xcb:ChangeSaveSet
:mode xcb:SetMode:Insert
:window icon))
;; Reparent to the embedder.
(xcb:+request exwm-systemtray--connection
(make-instance 'xcb:ReparentWindow
:window icon
:parent exwm-systemtray--embedder-window
:x 0
;; Vertically centered.
:y (/ (- exwm-systemtray-height height*) 2)))
;; Resize the icon.
(xcb:+request exwm-systemtray--connection
(make-instance 'xcb:ConfigureWindow
:window icon
:value-mask (logior xcb:ConfigWindow:Width
xcb:ConfigWindow:Height
xcb:ConfigWindow:BorderWidth)
:width width*
:height height*
:border-width 0))
;; Set event mask.
(xcb:+request exwm-systemtray--connection
(make-instance 'xcb:ChangeWindowAttributes
:window icon
:value-mask xcb:CW:EventMask
:event-mask (logior xcb:EventMask:ResizeRedirect
xcb:EventMask:KeyPress
xcb:EventMask:PropertyChange)))
;; Grab all keys and forward them to Emacs frame.
(unless (exwm-workspace--minibuffer-own-frame-p)
(xcb:+request exwm-systemtray--connection
(make-instance 'xcb:GrabKey
:owner-events 0
:grab-window icon
:modifiers xcb:ModMask:Any
:key xcb:Grab:Any
:pointer-mode xcb:GrabMode:Async
:keyboard-mode xcb:GrabMode:Async)))
(setq visible (slot-value info 'flags))
(if visible
(setq visible
(/= 0 (logand (slot-value info 'flags) xcb:xembed:MAPPED)))
;; Default to visible.
(setq visible t))
(when visible
(exwm--log "Map the window")
(xcb:+request exwm-systemtray--connection
(make-instance 'xcb:MapWindow :window icon)))
(xcb:+request exwm-systemtray--connection
(make-instance 'xcb:xembed:SendEvent
:destination icon
:event
(xcb:marshal
(make-instance 'xcb:xembed:EMBEDDED-NOTIFY
:window icon
:time xcb:Time:CurrentTime
:embedder
exwm-systemtray--embedder-window
:version 0)
exwm-systemtray--connection)))
(push `(,icon . ,(make-instance 'exwm-systemtray--icon
:width width*
:height height*
:visible visible))
exwm-systemtray--list)
(exwm-systemtray--refresh))))
(defun exwm-systemtray--unembed (icon)
"Unembed an icon."
(exwm--log "Unembed #x%x" icon)
(xcb:+request exwm-systemtray--connection
(make-instance 'xcb:UnmapWindow :window icon))
(xcb:+request exwm-systemtray--connection
(make-instance 'xcb:ReparentWindow
:window icon
:parent exwm--root
:x 0 :y 0))
(setq exwm-systemtray--list
(assq-delete-all icon exwm-systemtray--list))
(exwm-systemtray--refresh))
(defun exwm-systemtray--refresh ()
"Refresh the system tray."
(exwm--log)
;; Make sure to redraw the embedder.
(xcb:+request exwm-systemtray--connection
(make-instance 'xcb:UnmapWindow
:window exwm-systemtray--embedder-window))
(let ((x exwm-systemtray-icon-gap)
map)
(dolist (pair exwm-systemtray--list)
(when (slot-value (cdr pair) 'visible)
(xcb:+request exwm-systemtray--connection
(make-instance 'xcb:ConfigureWindow
:window (car pair)
:value-mask xcb:ConfigWindow:X
:x x))
(setq x (+ x (slot-value (cdr pair) 'width)
exwm-systemtray-icon-gap))
(setq map t)))
(let ((workarea (elt exwm-workspace--workareas
exwm-workspace-current-index)))
(xcb:+request exwm-systemtray--connection
(make-instance 'xcb:ConfigureWindow
:window exwm-systemtray--embedder-window
:value-mask (logior xcb:ConfigWindow:X
xcb:ConfigWindow:Width)
:x (- (aref workarea 2) x)
:width x)))
(when map
(xcb:+request exwm-systemtray--connection
(make-instance 'xcb:MapWindow
:window exwm-systemtray--embedder-window))))
(xcb:flush exwm-systemtray--connection))
(defun exwm-systemtray--on-DestroyNotify (data _synthetic)
"Unembed icons on DestroyNotify."
(exwm--log)
(let ((obj (make-instance 'xcb:DestroyNotify)))
(xcb:unmarshal obj data)
(with-slots (window) obj
(when (assoc window exwm-systemtray--list)
(exwm-systemtray--unembed window)))))
(defun exwm-systemtray--on-ReparentNotify (data _synthetic)
"Unembed icons on ReparentNotify."
(exwm--log)
(let ((obj (make-instance 'xcb:ReparentNotify)))
(xcb:unmarshal obj data)
(with-slots (window parent) obj
(when (and (/= parent exwm-systemtray--embedder-window)
(assoc window exwm-systemtray--list))
(exwm-systemtray--unembed window)))))
(defun exwm-systemtray--on-ResizeRequest (data _synthetic)
"Resize the tray icon on ResizeRequest."
(exwm--log)
(let ((obj (make-instance 'xcb:ResizeRequest))
attr)
(xcb:unmarshal obj data)
(with-slots (window width height) obj
(when (setq attr (cdr (assoc window exwm-systemtray--list)))
(with-slots ((width* width)
(height* height))
attr
(setq height* exwm-systemtray-height
width* (round (* width (/ (float height*) height))))
(when (< width* exwm-systemtray--icon-min-size)
(setq width* exwm-systemtray--icon-min-size
height* (round (* height (/ (float width*) width)))))
(xcb:+request exwm-systemtray--connection
(make-instance 'xcb:ConfigureWindow
:window window
:value-mask (logior xcb:ConfigWindow:Y
xcb:ConfigWindow:Width
xcb:ConfigWindow:Height)
;; Vertically centered.
:y (/ (- exwm-systemtray-height height*) 2)
:width width*
:height height*)))
(exwm-systemtray--refresh)))))
(defun exwm-systemtray--on-PropertyNotify (data _synthetic)
"Map/Unmap the tray icon on PropertyNotify."
(exwm--log)
(let ((obj (make-instance 'xcb:PropertyNotify))
attr info visible)
(xcb:unmarshal obj data)
(with-slots (window atom state) obj
(when (and (eq state xcb:Property:NewValue)
(eq atom xcb:Atom:_XEMBED_INFO)
(setq attr (cdr (assoc window exwm-systemtray--list))))
(setq info (xcb:+request-unchecked+reply exwm-systemtray--connection
(make-instance 'xcb:xembed:get-_XEMBED_INFO
:window window)))
(when info
(setq visible (/= 0 (logand (slot-value info 'flags)
xcb:xembed:MAPPED)))
(exwm--log "#x%x visible? %s" window visible)
(if visible
(xcb:+request exwm-systemtray--connection
(make-instance 'xcb:MapWindow :window window))
(xcb:+request exwm-systemtray--connection
(make-instance 'xcb:UnmapWindow :window window)))
(setf (slot-value attr 'visible) visible)
(exwm-systemtray--refresh))))))
(defun exwm-systemtray--on-ClientMessage (data _synthetic)
"Handle client messages."
(let ((obj (make-instance 'xcb:ClientMessage))
opcode data32)
(xcb:unmarshal obj data)
(with-slots (window type data) obj
(when (eq type xcb:Atom:_NET_SYSTEM_TRAY_OPCODE)
(setq data32 (slot-value data 'data32)
opcode (elt data32 1))
(exwm--log "opcode: %s" opcode)
(cond ((= opcode xcb:systemtray:opcode:REQUEST-DOCK)
(unless (assoc (elt data32 2) exwm-systemtray--list)
(exwm-systemtray--embed (elt data32 2))))
;; Not implemented (rarely used nowadays).
((or (= opcode xcb:systemtray:opcode:BEGIN-MESSAGE)
(= opcode xcb:systemtray:opcode:CANCEL-MESSAGE)))
(t
(exwm--log "Unknown opcode message: %s" obj)))))))
(defun exwm-systemtray--on-KeyPress (data _synthetic)
"Forward all KeyPress events to Emacs frame."
(exwm--log)
;; This function is only executed when there's no autohide minibuffer,
;; a workspace frame has the input focus and the pointer is over a
;; tray icon.
(let ((dest (frame-parameter (selected-frame) 'exwm-outer-id))
(obj (make-instance 'xcb:KeyPress)))
(xcb:unmarshal obj data)
(setf (slot-value obj 'event) dest)
(xcb:+request exwm-systemtray--connection
(make-instance 'xcb:SendEvent
:propagate 0
:destination dest
:event-mask xcb:EventMask:NoEvent
:event (xcb:marshal obj exwm-systemtray--connection))))
(xcb:flush exwm-systemtray--connection))
(defun exwm-systemtray--on-workspace-switch ()
"Reparent/Refresh the system tray in `exwm-workspace-switch-hook'."
(exwm--log)
(unless (exwm-workspace--minibuffer-own-frame-p)
(exwm-workspace--update-offsets)
(xcb:+request exwm-systemtray--connection
(make-instance 'xcb:ReparentWindow
:window exwm-systemtray--embedder-window
:parent (string-to-number
(frame-parameter exwm-workspace--current
'window-id))
:x 0
:y (- (elt (elt exwm-workspace--workareas
exwm-workspace-current-index)
3)
exwm-workspace--frame-y-offset
exwm-systemtray-height))))
(exwm-systemtray--refresh))
(defun exwm-systemtray--refresh-all ()
"Reposition/Refresh the system tray."
(exwm--log)
(unless (exwm-workspace--minibuffer-own-frame-p)
(exwm-workspace--update-offsets)
(xcb:+request exwm-systemtray--connection
(make-instance 'xcb:ConfigureWindow
:window exwm-systemtray--embedder-window
:value-mask xcb:ConfigWindow:Y
:y (- (elt (elt exwm-workspace--workareas
exwm-workspace-current-index)
3)
exwm-workspace--frame-y-offset
exwm-systemtray-height))))
(exwm-systemtray--refresh))
(cl-defun exwm-systemtray--init ()
"Initialize system tray module."
(exwm--log)
(cl-assert (not exwm-systemtray--connection))
(cl-assert (not exwm-systemtray--list))
(cl-assert (not exwm-systemtray--selection-owner-window))
(cl-assert (not exwm-systemtray--embedder-window))
(unless exwm-systemtray-height
(setq exwm-systemtray-height (max exwm-systemtray--icon-min-size
(line-pixel-height))))
;; Create a new connection.
(setq exwm-systemtray--connection (xcb:connect))
(set-process-query-on-exit-flag (slot-value exwm-systemtray--connection
'process)
nil)
;; Initialize XELB modules.
(xcb:xembed:init exwm-systemtray--connection t)
(xcb:systemtray:init exwm-systemtray--connection t)
;; Acquire the manager selection _NET_SYSTEM_TRAY_S0.
(with-slots (owner)
(xcb:+request-unchecked+reply exwm-systemtray--connection
(make-instance 'xcb:GetSelectionOwner
:selection xcb:Atom:_NET_SYSTEM_TRAY_S0))
(when (/= owner xcb:Window:None)
(xcb:disconnect exwm-systemtray--connection)
(setq exwm-systemtray--connection nil)
(warn "[EXWM] Other system tray detected")
(cl-return-from exwm-systemtray--init)))
(let ((id (xcb:generate-id exwm-systemtray--connection)))
(setq exwm-systemtray--selection-owner-window id)
(xcb:+request exwm-systemtray--connection
(make-instance 'xcb:CreateWindow
:depth 0
:wid id
:parent exwm--root
:x 0
:y 0
:width 1
:height 1
:border-width 0
:class xcb:WindowClass:InputOnly
:visual 0
:value-mask xcb:CW:OverrideRedirect
:override-redirect 1))
;; Get the selection ownership.
(xcb:+request exwm-systemtray--connection
(make-instance 'xcb:SetSelectionOwner
:owner id
:selection xcb:Atom:_NET_SYSTEM_TRAY_S0
:time xcb:Time:CurrentTime))
;; Send a client message to announce the selection.
(xcb:+request exwm-systemtray--connection
(make-instance 'xcb:SendEvent
:propagate 0
:destination exwm--root
:event-mask xcb:EventMask:StructureNotify
:event (xcb:marshal
(make-instance 'xcb:systemtray:-ClientMessage
:window exwm--root
:time xcb:Time:CurrentTime
:selection
xcb:Atom:_NET_SYSTEM_TRAY_S0
:owner id)
exwm-systemtray--connection)))
;; Set _NET_WM_NAME.
(xcb:+request exwm-systemtray--connection
(make-instance 'xcb:ewmh:set-_NET_WM_NAME
:window id
:data "EXWM: exwm-systemtray--selection-owner-window"))
;; Set the _NET_SYSTEM_TRAY_ORIENTATION property.
(xcb:+request exwm-systemtray--connection
(make-instance 'xcb:xembed:set-_NET_SYSTEM_TRAY_ORIENTATION
:window id
:data xcb:systemtray:ORIENTATION:HORZ)))
;; Create the embedder.
(let ((id (xcb:generate-id exwm-systemtray--connection))
(background-pixel (exwm--color->pixel exwm-systemtray-background-color))
frame parent depth y)
(setq exwm-systemtray--embedder-window id)
(if (exwm-workspace--minibuffer-own-frame-p)
(setq frame exwm-workspace--minibuffer
y (if (>= (line-pixel-height) exwm-systemtray-height)
;; Bottom aligned.
(- (line-pixel-height) exwm-systemtray-height)
;; Vertically centered.
(/ (- (line-pixel-height) exwm-systemtray-height) 2)))
(exwm-workspace--update-offsets)
(setq frame exwm-workspace--current
;; Bottom aligned.
y (- (elt (elt exwm-workspace--workareas
exwm-workspace-current-index)
3)
exwm-workspace--frame-y-offset
exwm-systemtray-height)))
(setq parent (string-to-number (frame-parameter frame 'window-id))
depth (slot-value (xcb:+request-unchecked+reply
exwm-systemtray--connection
(make-instance 'xcb:GetGeometry
:drawable parent))
'depth))
(xcb:+request exwm-systemtray--connection
(make-instance 'xcb:CreateWindow
:depth depth
:wid id
:parent parent
:x 0
:y y
:width 1
:height exwm-systemtray-height
:border-width 0
:class xcb:WindowClass:InputOutput
:visual 0
:value-mask (logior xcb:CW:BackPixmap
(if background-pixel
xcb:CW:BackPixel 0)
xcb:CW:EventMask)
:background-pixmap xcb:BackPixmap:ParentRelative
:background-pixel background-pixel
:event-mask xcb:EventMask:SubstructureNotify))
;; Set _NET_WM_NAME.
(xcb:+request exwm-systemtray--connection
(make-instance 'xcb:ewmh:set-_NET_WM_NAME
:window id
:data "EXWM: exwm-systemtray--embedder-window")))
(xcb:flush exwm-systemtray--connection)
;; Attach event listeners.
(xcb:+event exwm-systemtray--connection 'xcb:DestroyNotify
#'exwm-systemtray--on-DestroyNotify)
(xcb:+event exwm-systemtray--connection 'xcb:ReparentNotify
#'exwm-systemtray--on-ReparentNotify)
(xcb:+event exwm-systemtray--connection 'xcb:ResizeRequest
#'exwm-systemtray--on-ResizeRequest)
(xcb:+event exwm-systemtray--connection 'xcb:PropertyNotify
#'exwm-systemtray--on-PropertyNotify)
(xcb:+event exwm-systemtray--connection 'xcb:ClientMessage
#'exwm-systemtray--on-ClientMessage)
(unless (exwm-workspace--minibuffer-own-frame-p)
(xcb:+event exwm-systemtray--connection 'xcb:KeyPress
#'exwm-systemtray--on-KeyPress))
;; Add hook to move/reparent the embedder.
(add-hook 'exwm-workspace-switch-hook #'exwm-systemtray--on-workspace-switch)
(add-hook 'exwm-workspace--update-workareas-hook
#'exwm-systemtray--refresh-all)
(add-hook 'menu-bar-mode-hook #'exwm-systemtray--refresh-all)
(add-hook 'tool-bar-mode-hook #'exwm-systemtray--refresh-all)
(when (boundp 'exwm-randr-refresh-hook)
(add-hook 'exwm-randr-refresh-hook #'exwm-systemtray--refresh-all))
;; The struts can be updated already.
(when exwm-workspace--workareas
(exwm-systemtray--refresh-all)))
(defun exwm-systemtray--exit ()
"Exit the systemtray module."
(exwm--log)
(when exwm-systemtray--connection
;; Hide & reparent out the embedder before disconnection to prevent
;; embedded icons from being reparented to an Emacs frame (which is the
;; parent of the embedder).
(xcb:+request exwm-systemtray--connection
(make-instance 'xcb:UnmapWindow
:window exwm-systemtray--embedder-window))
(xcb:+request exwm-systemtray--connection
(make-instance 'xcb:ReparentWindow
:window exwm-systemtray--embedder-window
:parent exwm--root
:x 0
:y 0))
(xcb:disconnect exwm-systemtray--connection)
(setq exwm-systemtray--connection nil
exwm-systemtray--list nil
exwm-systemtray--selection-owner-window nil
exwm-systemtray--embedder-window nil)
(remove-hook 'exwm-workspace-switch-hook
#'exwm-systemtray--on-workspace-switch)
(remove-hook 'exwm-workspace--update-workareas-hook
#'exwm-systemtray--refresh-all)
(remove-hook 'menu-bar-mode-hook #'exwm-systemtray--refresh-all)
(remove-hook 'tool-bar-mode-hook #'exwm-systemtray--refresh-all)
(when (boundp 'exwm-randr-refresh-hook)
(remove-hook 'exwm-randr-refresh-hook #'exwm-systemtray--refresh-all))))
(defun exwm-systemtray-enable ()
"Enable system tray support for EXWM."
(exwm--log)
(add-hook 'exwm-init-hook #'exwm-systemtray--init)
(add-hook 'exwm-exit-hook #'exwm-systemtray--exit))
(provide 'exwm-systemtray)
;;; exwm-systemtray.el ends here

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;;; exwm-xim.el --- XIM Module for EXWM -*- lexical-binding: t -*-
;; Copyright (C) 2019-2020 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 XIM support for EXWM and allows sending characters
;; generated by any Emacs's builtin input method (info node `Input Methods')
;; to X windows.
;; This module is essentially an X input method server utilizing Emacs as
;; its backend. It talks with X windows through the XIM protocol. The XIM
;; protocol is quite flexible by itself, stating that an implementation can
;; create network connections of various types as well as make use of an
;; existing X connection for communication, and that an IM server may
;; support multiple transport versions, various input styles and several
;; event flow modals, etc. Here we only make choices that are most popular
;; among other IM servers and more importantly, practical for Emacs to act
;; as an IM server:
;;
;; + Packets are transported on top of an X connection like most IMEs.
;; + Only transport version 0.0 (i.e. only-CM & Property-with-CM) is
;; supported (same as "IM Server Developers Kit", adopted by most IMEs).
;; + Only support static event flow, on-demand-synchronous method.
;; + Only "root-window" input style is supported.
;; To use this module, first load and enable it as follows:
;;
;; (require 'exwm-xim)
;; (exwm-xim-enable)
;;
;; A keybinding for `toggle-input-method' is probably required to turn on &
;; off an input method (default to `default-input-method'). It's bound to
;; 'C-\' by default and can be made reachable when working with X windows:
;;
;; (push ?\C-\\ exwm-input-prefix-keys)
;;
;; It's also required (and error-prone) to setup environment variables to
;; make applications actually use this input method. Typically the
;; following lines should be inserted into '~/.xinitrc'.
;;
;; export XMODIFIERS=@im=exwm-xim
;; export GTK_IM_MODULE=xim
;; export QT_IM_MODULE=xim
;; export CLUTTER_IM_MODULE=xim
;; References:
;; + XIM (http://www.x.org/releases/X11R7.6/doc/libX11/specs/XIM/xim.html)
;; + IMdkit (http://xorg.freedesktop.org/archive/unsupported/lib/IMdkit/)
;; + UIM (https://github.com/uim/uim)
;;; Code:
(eval-when-compile (require 'cl-lib))
(require 'xcb-keysyms)
(require 'xcb-xim)
(require 'exwm-core)
(require 'exwm-input)
(defconst exwm-xim--locales
"@locale=\
aa,af,ak,am,an,anp,ar,as,ast,ayc,az,be,bem,ber,bg,bhb,bho,bn,bo,br,brx,bs,byn,\
ca,ce,cmn,crh,cs,csb,cv,cy,da,de,doi,dv,dz,el,en,es,et,eu,fa,ff,fi,fil,fo,fr,\
fur,fy,ga,gd,gez,gl,gu,gv,ha,hak,he,hi,hne,hr,hsb,ht,hu,hy,ia,id,ig,ik,is,it,\
iu,iw,ja,ka,kk,kl,km,kn,ko,kok,ks,ku,kw,ky,lb,lg,li,li,lij,lo,lt,lv,lzh,mag,\
mai,mg,mhr,mi,mk,ml,mn,mni,mr,ms,mt,my,nan,nb,nds,ne,nhn,niu,nl,nn,nr,nso,oc,\
om,or,os,pa,pa,pap,pl,ps,pt,quz,raj,ro,ru,rw,sa,sat,sc,sd,se,shs,si,sid,sk,sl,\
so,sq,sr,ss,st,sv,sw,szl,ta,tcy,te,tg,th,the,ti,tig,tk,tl,tn,tr,ts,tt,ug,uk,\
unm,ur,uz,ve,vi,wa,wae,wal,wo,xh,yi,yo,yue,zh,zu,\
C,no"
"All supported locales (stolen from glibc).")
(defconst exwm-xim--default-error
(make-instance 'xim:error
:im-id 0
:ic-id 0
:flag xim:error-flag:invalid-both
:error-code xim:error-code:bad-something
:length 0
:type 0
:detail nil)
"Default error returned to clients.")
(defconst exwm-xim--default-im-attrs
(list (make-instance 'xim:XIMATTR
:id 0
:type xim:ATTRIBUTE-VALUE-TYPE:xim-styles
:length (length xlib:XNQueryInputStyle)
:attribute xlib:XNQueryInputStyle))
"Default IM attrs returned to clients.")
(defconst exwm-xim--default-ic-attrs
(list (make-instance 'xim:XICATTR
:id 0
:type xim:ATTRIBUTE-VALUE-TYPE:long-data
:length (length xlib:XNInputStyle)
:attribute xlib:XNInputStyle)
(make-instance 'xim:XICATTR
:id 1
:type xim:ATTRIBUTE-VALUE-TYPE:window
:length (length xlib:XNClientWindow)
:attribute xlib:XNClientWindow)
;; Required by e.g. xterm.
(make-instance 'xim:XICATTR
:id 2
:type xim:ATTRIBUTE-VALUE-TYPE:window
:length (length xlib:XNFocusWindow)
:attribute xlib:XNFocusWindow))
"Default IC attrs returned to clients.")
(defconst exwm-xim--default-styles
(make-instance 'xim:XIMStyles
:number nil
:styles (list (logior xlib:XIMPreeditNothing
xlib:XIMStatusNothing)))
"Default styles: root-window, i.e. no preediting or status display support.")
(defconst exwm-xim--default-attributes
(list (make-instance 'xim:XIMATTRIBUTE
:id 0
:length nil
:value exwm-xim--default-styles))
"Default IM/IC attributes returned to clients.")
(defvar exwm-xim--conn nil
"The X connection for initiating other XIM connections.")
(defvar exwm-xim--event-xwin nil
"X window for initiating new XIM connections.")
(defvar exwm-xim--server-client-plist '(nil nil)
"Plist mapping server window to [X connection, client window, byte-order].")
(defvar exwm-xim--client-server-plist '(nil nil)
"Plist mapping client window to server window.")
(defvar exwm-xim--property-index 0 "For generating a unique property name.")
(defvar exwm-xim--im-id 0 "Last IM ID.")
(defvar exwm-xim--ic-id 0 "Last IC ID.")
;; X11 atoms.
(defvar exwm-xim--@server nil)
(defvar exwm-xim--LOCALES nil)
(defvar exwm-xim--TRANSPORT nil)
(defvar exwm-xim--XIM_SERVERS nil)
(defvar exwm-xim--_XIM_PROTOCOL nil)
(defvar exwm-xim--_XIM_XCONNECT nil)
(defun exwm-xim--on-SelectionRequest (data _synthetic)
"Handle SelectionRequest events on IMS window.
Such events would be received when clients query for LOCALES or TRANSPORT."
(exwm--log)
(let ((evt (make-instance 'xcb:SelectionRequest))
value fake-event)
(xcb:unmarshal evt data)
(with-slots (time requestor selection target property) evt
(setq value (cond ((= target exwm-xim--LOCALES)
;; Return supported locales.
exwm-xim--locales)
((= target exwm-xim--TRANSPORT)
;; Use XIM over an X connection.
"@transport=X/")))
(when value
;; Change the property.
(xcb:+request exwm-xim--conn
(make-instance 'xcb:ChangeProperty
:mode xcb:PropMode:Replace
:window requestor
:property property
:type target
:format 8
:data-len (length value)
:data value))
;; Send a SelectionNotify event.
(setq fake-event (make-instance 'xcb:SelectionNotify
:time time
:requestor requestor
:selection selection
:target target
:property property))
(xcb:+request exwm-xim--conn
(make-instance 'xcb:SendEvent
:propagate 0
:destination requestor
:event-mask xcb:EventMask:NoEvent
:event (xcb:marshal fake-event exwm-xim--conn)))
(xcb:flush exwm-xim--conn)))))
(cl-defun exwm-xim--on-ClientMessage-0 (data _synthetic)
"Handle ClientMessage event on IMS window (new connection).
Such events would be received when clients request for _XIM_XCONNECT.
A new X connection and server window would be created to communicate with
this client."
(exwm--log)
(let ((evt (make-instance 'xcb:ClientMessage))
conn client-xwin server-xwin)
(xcb:unmarshal evt data)
(with-slots (window type data) evt
(unless (= type exwm-xim--_XIM_XCONNECT)
;; Only handle _XIM_XCONNECT.
(exwm--log "Ignore ClientMessage %s" type)
(cl-return-from exwm-xim--on-ClientMessage-0))
(setq client-xwin (elt (slot-value data 'data32) 0)
;; Create a new X connection and a new server window.
conn (xcb:connect)
server-xwin (xcb:generate-id conn))
(set-process-query-on-exit-flag (slot-value conn 'process) nil)
;; Store this client.
(plist-put exwm-xim--server-client-plist server-xwin
`[,conn ,client-xwin nil])
(plist-put exwm-xim--client-server-plist client-xwin server-xwin)
;; Select DestroyNotify events on this client window.
(xcb:+request exwm-xim--conn
(make-instance 'xcb:ChangeWindowAttributes
:window client-xwin
:value-mask xcb:CW:EventMask
:event-mask xcb:EventMask:StructureNotify))
(xcb:flush exwm-xim--conn)
;; Handle ClientMessage events from this new connection.
(xcb:+event conn 'xcb:ClientMessage #'exwm-xim--on-ClientMessage)
;; Create a communication window.
(xcb:+request conn
(make-instance 'xcb:CreateWindow
:depth 0
:wid server-xwin
:parent exwm--root
:x 0
:y 0
:width 1
:height 1
:border-width 0
:class xcb:WindowClass:InputOutput
:visual 0
:value-mask xcb:CW:OverrideRedirect
:override-redirect 1))
(xcb:flush conn)
;; Send connection establishment ClientMessage.
(setf window client-xwin
(slot-value data 'data32) `(,server-xwin 0 0 0 0))
(slot-makeunbound data 'data8)
(slot-makeunbound data 'data16)
(xcb:+request exwm-xim--conn
(make-instance 'xcb:SendEvent
:propagate 0
:destination client-xwin
:event-mask xcb:EventMask:NoEvent
:event (xcb:marshal evt exwm-xim--conn)))
(xcb:flush exwm-xim--conn))))
(cl-defun exwm-xim--on-ClientMessage (data _synthetic)
"Handle ClientMessage event on IMS communication window (request).
Such events would be received when clients request for _XIM_PROTOCOL.
The actual XIM request is in client message data or a property."
(exwm--log)
(let ((evt (make-instance 'xcb:ClientMessage))
conn client-xwin server-xwin)
(xcb:unmarshal evt data)
(with-slots (format window type data) evt
(unless (= type exwm-xim--_XIM_PROTOCOL)
(exwm--log "Ignore ClientMessage %s" type)
(cl-return-from exwm-xim--on-ClientMessage))
(setq server-xwin window
conn (plist-get exwm-xim--server-client-plist server-xwin)
client-xwin (elt conn 1)
conn (elt conn 0))
(cond ((= format 8)
;; Data.
(exwm-xim--on-request (vconcat (slot-value data 'data8))
conn client-xwin server-xwin))
((= format 32)
;; Atom.
(with-slots (data32) data
(with-slots (value)
(xcb:+request-unchecked+reply conn
(make-instance 'xcb:GetProperty
:delete 1
:window server-xwin
:property (elt data32 1)
:type xcb:GetPropertyType:Any
:long-offset 0
:long-length (elt data32 0)))
(when (> (length value) 0)
(exwm-xim--on-request value conn client-xwin
server-xwin)))))))))
(defun exwm-xim--on-request (data conn client-xwin server-xwin)
"Handle an XIM reuqest."
(exwm--log)
(let ((opcode (elt data 0))
;; Let-bind `xim:lsb' to make pack/unpack functions work correctly.
(xim:lsb (elt (plist-get exwm-xim--server-client-plist server-xwin) 2))
req replies)
(cond ((= opcode xim:opcode:error)
(exwm--log "ERROR: %s" data))
((= opcode xim:opcode:connect)
(exwm--log "CONNECT")
(setq xim:lsb (= (elt data 4) xim:connect-byte-order:lsb-first))
;; Store byte-order.
(setf (elt (plist-get exwm-xim--server-client-plist server-xwin) 2)
xim:lsb)
(setq req (make-instance 'xim:connect))
(xcb:unmarshal req data)
(if (and (= (slot-value req 'major-version) 1)
(= (slot-value req 'minor-version) 0)
;; Do not support authentication.
(= (slot-value req 'number) 0))
;; Accept the connection.
(push (make-instance 'xim:connect-reply) replies)
;; Deny it.
(push exwm-xim--default-error replies)))
((memq opcode (list xim:opcode:auth-required
xim:opcode:auth-reply
xim:opcode:auth-next
xim:opcode:auth-ng))
(exwm--log "AUTH: %d" opcode)
;; Deny any attempt to make authentication.
(push exwm-xim--default-error replies))
((= opcode xim:opcode:disconnect)
(exwm--log "DISCONNECT")
;; Gracefully disconnect from the client.
(exwm-xim--make-request (make-instance 'xim:disconnect-reply)
conn client-xwin)
;; Destroy the communication window & connection.
(xcb:+request conn
(make-instance 'xcb:DestroyWindow
:window server-xwin))
(xcb:disconnect conn)
;; Clean up cache.
(cl-remf exwm-xim--server-client-plist server-xwin)
(cl-remf exwm-xim--client-server-plist client-xwin))
((= opcode xim:opcode:open)
(exwm--log "OPEN")
;; Note: We make no check here.
(setq exwm-xim--im-id (if (< exwm-xim--im-id #xffff)
(1+ exwm-xim--im-id)
1))
(setq replies
(list
(make-instance 'xim:open-reply
:im-id exwm-xim--im-id
:im-attrs-length nil
:im-attrs exwm-xim--default-im-attrs
:ic-attrs-length nil
:ic-attrs exwm-xim--default-ic-attrs)
(make-instance 'xim:set-event-mask
:im-id exwm-xim--im-id
:ic-id 0
;; Static event flow.
:forward-event-mask xcb:EventMask:KeyPress
;; on-demand-synchronous method.
:synchronous-event-mask
xcb:EventMask:NoEvent))))
((= opcode xim:opcode:close)
(exwm--log "CLOSE")
(setq req (make-instance 'xim:close))
(xcb:unmarshal req data)
(push (make-instance 'xim:close-reply
:im-id (slot-value req 'im-id))
replies))
((= opcode xim:opcode:trigger-notify)
(exwm--log "TRIGGER-NOTIFY")
;; Only static event flow modal is supported.
(push exwm-xim--default-error replies))
((= opcode xim:opcode:encoding-negotiation)
(exwm--log "ENCODING-NEGOTIATION")
(setq req (make-instance 'xim:encoding-negotiation))
(xcb:unmarshal req data)
(let ((index (cl-position "COMPOUND_TEXT"
(mapcar (lambda (i) (slot-value i 'name))
(slot-value req 'names))
:test #'equal)))
(unless index
;; Fallback to portable character encoding (a subset of ASCII).
(setq index -1))
(push (make-instance 'xim:encoding-negotiation-reply
:im-id (slot-value req 'im-id)
:category
xim:encoding-negotiation-reply-category:name
:index index)
replies)))
((= opcode xim:opcode:query-extension)
(exwm--log "QUERY-EXTENSION")
(setq req (make-instance 'xim:query-extension))
(xcb:unmarshal req data)
(push (make-instance 'xim:query-extension-reply
:im-id (slot-value req 'im-id)
;; No extension support.
:length 0
:extensions nil)
replies))
((= opcode xim:opcode:set-im-values)
(exwm--log "SET-IM-VALUES")
;; There's only one possible input method attribute.
(setq req (make-instance 'xim:set-im-values))
(xcb:unmarshal req data)
(push (make-instance 'xim:set-im-values-reply
:im-id (slot-value req 'im-id))
replies))
((= opcode xim:opcode:get-im-values)
(exwm--log "GET-IM-VALUES")
(setq req (make-instance 'xim:get-im-values))
(let (im-attributes-id)
(xcb:unmarshal req data)
(setq im-attributes-id (slot-value req 'im-attributes-id))
(if (cl-notevery (lambda (i) (= i 0)) im-attributes-id)
;; Only support one IM attributes.
(push (make-instance 'xim:error
:im-id (slot-value req 'im-id)
:ic-id 0
:flag xim:error-flag:invalid-ic-id
:error-code xim:error-code:bad-something
:length 0
:type 0
:detail nil)
replies)
(push
(make-instance 'xim:get-im-values-reply
:im-id (slot-value req 'im-id)
:length nil
:im-attributes exwm-xim--default-attributes)
replies))))
((= opcode xim:opcode:create-ic)
(exwm--log "CREATE-IC")
(setq req (make-instance 'xim:create-ic))
(xcb:unmarshal req data)
;; Note: The ic-attributes slot is ignored.
(setq exwm-xim--ic-id (if (< exwm-xim--ic-id #xffff)
(1+ exwm-xim--ic-id)
1))
(push (make-instance 'xim:create-ic-reply
:im-id (slot-value req 'im-id)
:ic-id exwm-xim--ic-id)
replies))
((= opcode xim:opcode:destroy-ic)
(exwm--log "DESTROY-IC")
(setq req (make-instance 'xim:destroy-ic))
(xcb:unmarshal req data)
(push (make-instance 'xim:destroy-ic-reply
:im-id (slot-value req 'im-id)
:ic-id (slot-value req 'ic-id))
replies))
((= opcode xim:opcode:set-ic-values)
(exwm--log "SET-IC-VALUES")
(setq req (make-instance 'xim:set-ic-values))
(xcb:unmarshal req data)
;; We don't distinguish between input contexts.
(push (make-instance 'xim:set-ic-values-reply
:im-id (slot-value req 'im-id)
:ic-id (slot-value req 'ic-id))
replies))
((= opcode xim:opcode:get-ic-values)
(exwm--log "GET-IC-VALUES")
(setq req (make-instance 'xim:get-ic-values))
(xcb:unmarshal req data)
(push (make-instance 'xim:get-ic-values-reply
:im-id (slot-value req 'im-id)
:ic-id (slot-value req 'ic-id)
:length nil
:ic-attributes exwm-xim--default-attributes)
replies))
((= opcode xim:opcode:set-ic-focus)
(exwm--log "SET-IC-FOCUS")
;; All input contexts are the same.
)
((= opcode xim:opcode:unset-ic-focus)
(exwm--log "UNSET-IC-FOCUS")
;; All input contexts are the same.
)
((= opcode xim:opcode:forward-event)
(exwm--log "FORWARD-EVENT")
(setq req (make-instance 'xim:forward-event))
(xcb:unmarshal req data)
(exwm-xim--handle-forward-event-request req xim:lsb conn
client-xwin))
((= opcode xim:opcode:sync)
(exwm--log "SYNC")
(setq req (make-instance 'xim:sync))
(xcb:unmarshal req data)
(push (make-instance 'xim:sync-reply
:im-id (slot-value req 'im-id)
:ic-id (slot-value req 'ic-id))
replies))
((= opcode xim:opcode:sync-reply)
(exwm--log "SYNC-REPLY"))
((= opcode xim:opcode:reset-ic)
(exwm--log "RESET-IC")
;; No context-specific data saved.
(setq req (make-instance 'xim:reset-ic))
(xcb:unmarshal req data)
(push (make-instance 'xim:reset-ic-reply
:im-id (slot-value req 'im-id)
:ic-id (slot-value req 'ic-id)
:length 0
:string "")
replies))
((memq opcode (list xim:opcode:str-conversion-reply
xim:opcode:preedit-start-reply
xim:opcode:preedit-caret-reply))
(exwm--log "PREEDIT: %d" opcode)
;; No preedit support.
(push exwm-xim--default-error replies))
(t
(exwm--log "Bad protocol")
(push exwm-xim--default-error replies)))
;; Actually send the replies.
(when replies
(mapc (lambda (reply)
(exwm-xim--make-request reply conn client-xwin))
replies)
(xcb:flush conn))))
(defun exwm-xim--handle-forward-event-request (req lsb conn client-xwin)
(let ((im-func (with-current-buffer (window-buffer)
input-method-function))
key-event keysym keysyms event result)
;; Note: The flag slot is ignored.
;; Do conversion in client's byte-order.
(let ((xcb:lsb lsb))
(setq key-event (make-instance 'xcb:KeyPress))
(xcb:unmarshal key-event (slot-value req 'event)))
(with-slots (detail state) key-event
(setq keysym (xcb:keysyms:keycode->keysym exwm-xim--conn detail
state))
(when (/= (car keysym) 0)
(setq event (xcb:keysyms:keysym->event
exwm-xim--conn
(car keysym)
(logand state (lognot (cdr keysym)))))))
(while (or (slot-value req 'event) unread-command-events)
(unless (slot-value req 'event)
(setq event (pop unread-command-events))
;; Handle events in (t . EVENT) format.
(when (and (consp event)
(eq (car event) t))
(setq event (cdr event))))
(if (or (not im-func)
;; `list' is the default method.
(eq im-func #'list)
(not event)
;; Select only printable keys.
(not (integerp event)) (> #x20 event) (< #x7e event))
;; Either there is no active input method, or invalid key
;; is detected.
(with-slots ((raw-event event)
im-id ic-id serial-number)
req
(if raw-event
(setq event raw-event)
(setq keysyms (xcb:keysyms:event->keysyms exwm-xim--conn event))
(with-slots (detail state) key-event
(setf detail (xcb:keysyms:keysym->keycode exwm-xim--conn
(caar keysyms))
state (cdar keysyms)))
(setq event (let ((xcb:lsb lsb))
(xcb:marshal key-event conn))))
(when event
(exwm-xim--make-request
(make-instance 'xim:forward-event
:im-id im-id
:ic-id ic-id
:flag xim:commit-flag:synchronous
:serial-number serial-number
:event event)
conn client-xwin)))
(when (eq exwm--selected-input-mode 'char-mode)
;; Grab keyboard temporarily for char-mode.
(exwm-input--grab-keyboard))
(unwind-protect
(with-temp-buffer
;; Always show key strokes.
(let ((input-method-use-echo-area t)
(exwm-input-line-mode-passthrough t))
(setq result (funcall im-func event))
;; Clear echo area for the input method.
(message nil)
;; This also works for portable character encoding.
(setq result
(encode-coding-string (concat result)
'compound-text-with-extensions))
(exwm-xim--make-request
(make-instance 'xim:commit-x-lookup-chars
:im-id (slot-value req 'im-id)
:ic-id (slot-value req 'ic-id)
:flag (logior xim:commit-flag:synchronous
xim:commit-flag:x-lookup-chars)
:length (length result)
:string result)
conn client-xwin)))
(when (eq exwm--selected-input-mode 'char-mode)
(exwm-input--release-keyboard))))
(xcb:flush conn)
(setf event nil
(slot-value req 'event) nil))))
(defun exwm-xim--make-request (req conn client-xwin)
"Make an XIM request REQ via connection CONN.
CLIENT-XWIN would receive a ClientMessage event either telling the client
the request data or where to fetch the data."
(exwm--log)
(let ((data (xcb:marshal req))
property format client-message-data client-message)
(if (<= (length data) 20)
;; Send short requests directly with client messages.
(setq format 8
;; Pad to 20 bytes.
data (append data (make-list (- 20 (length data)) 0))
client-message-data (make-instance 'xcb:ClientMessageData
:data8 data))
;; Send long requests with properties.
(setq property (exwm--intern-atom (format "_EXWM_XIM_%x"
exwm-xim--property-index)))
(cl-incf exwm-xim--property-index)
(xcb:+request conn
(make-instance 'xcb:ChangeProperty
:mode xcb:PropMode:Append
:window client-xwin
:property property
:type xcb:Atom:STRING
:format 8
:data-len (length data)
:data data))
;; Also send a client message to notify the client about this property.
(setq format 32
client-message-data (make-instance 'xcb:ClientMessageData
:data32 `(,(length data)
,property
;; Pad to 20 bytes.
0 0 0))))
;; Send the client message.
(setq client-message (make-instance 'xcb:ClientMessage
:format format
:window client-xwin
:type exwm-xim--_XIM_PROTOCOL
:data client-message-data))
(xcb:+request conn
(make-instance 'xcb:SendEvent
:propagate 0
:destination client-xwin
:event-mask xcb:EventMask:NoEvent
:event (xcb:marshal client-message conn)))))
(defun exwm-xim--on-DestroyNotify (data synthetic)
"Do cleanups on receiving DestroyNotify event.
Such event would be received when the client window is destroyed."
(exwm--log)
(unless synthetic
(let ((evt (make-instance 'xcb:DestroyNotify))
conn client-xwin server-xwin)
(xcb:unmarshal evt data)
(setq client-xwin (slot-value evt 'window)
server-xwin (plist-get exwm-xim--client-server-plist client-xwin))
(when server-xwin
(setq conn (aref (plist-get exwm-xim--server-client-plist server-xwin)
0))
(cl-remf exwm-xim--server-client-plist server-xwin)
(cl-remf exwm-xim--client-server-plist client-xwin)
;; Destroy the communication window & connection.
(xcb:+request conn
(make-instance 'xcb:DestroyWindow
:window server-xwin))
(xcb:disconnect conn)))))
(cl-defun exwm-xim--init ()
"Initialize the XIM module."
(exwm--log)
(when exwm-xim--conn
(cl-return-from exwm-xim--init))
;; Initialize atoms.
(setq exwm-xim--@server (exwm--intern-atom "@server=exwm-xim")
exwm-xim--LOCALES (exwm--intern-atom "LOCALES")
exwm-xim--TRANSPORT (exwm--intern-atom "TRANSPORT")
exwm-xim--XIM_SERVERS (exwm--intern-atom "XIM_SERVERS")
exwm-xim--_XIM_PROTOCOL (exwm--intern-atom "_XIM_PROTOCOL")
exwm-xim--_XIM_XCONNECT (exwm--intern-atom "_XIM_XCONNECT"))
;; Create a new connection and event window.
(setq exwm-xim--conn (xcb:connect)
exwm-xim--event-xwin (xcb:generate-id exwm-xim--conn))
(set-process-query-on-exit-flag (slot-value exwm-xim--conn 'process) nil)
;; Initialize xcb:keysyms module.
(xcb:keysyms:init exwm-xim--conn)
;; Listen to SelectionRequest event for connection establishment.
(xcb:+event exwm-xim--conn 'xcb:SelectionRequest
#'exwm-xim--on-SelectionRequest)
;; Listen to ClientMessage event on IMS window for new XIM connection.
(xcb:+event exwm-xim--conn 'xcb:ClientMessage #'exwm-xim--on-ClientMessage-0)
;; Listen to DestroyNotify event to do cleanups.
(xcb:+event exwm-xim--conn 'xcb:DestroyNotify #'exwm-xim--on-DestroyNotify)
;; Create the event window.
(xcb:+request exwm-xim--conn
(make-instance 'xcb:CreateWindow
:depth 0
:wid exwm-xim--event-xwin
:parent exwm--root
:x 0
:y 0
:width 1
:height 1
:border-width 0
:class xcb:WindowClass:InputOutput
:visual 0
:value-mask xcb:CW:OverrideRedirect
:override-redirect 1))
;; Set the selection owner.
(xcb:+request exwm-xim--conn
(make-instance 'xcb:SetSelectionOwner
:owner exwm-xim--event-xwin
:selection exwm-xim--@server
:time xcb:Time:CurrentTime))
;; Set XIM_SERVERS property on the root window.
(xcb:+request exwm-xim--conn
(make-instance 'xcb:ChangeProperty
:mode xcb:PropMode:Prepend
:window exwm--root
:property exwm-xim--XIM_SERVERS
:type xcb:Atom:ATOM
:format 32
:data-len 1
:data (funcall (if xcb:lsb
#'xcb:-pack-u4-lsb
#'xcb:-pack-u4)
exwm-xim--@server)))
(xcb:flush exwm-xim--conn))
(cl-defun exwm-xim--exit ()
"Exit the XIM module."
(exwm--log)
;; Close IMS communication connections.
(mapc (lambda (i)
(when (vectorp i)
(xcb:disconnect (elt i 0))))
exwm-xim--server-client-plist)
;; Close the IMS connection.
(unless exwm-xim--conn
(cl-return-from exwm-xim--exit))
;; Remove exwm-xim from XIM_SERVERS.
(let ((reply (xcb:+request-unchecked+reply exwm-xim--conn
(make-instance 'xcb:GetProperty
:delete 1
:window exwm--root
:property exwm-xim--XIM_SERVERS
:type xcb:Atom:ATOM
:long-offset 0
:long-length 1000)))
unpacked-reply pack unpack)
(unless reply
(cl-return-from exwm-xim--exit))
(setq reply (slot-value reply 'value))
(unless (> (length reply) 4)
(cl-return-from exwm-xim--exit))
(setq reply (vconcat reply)
pack (if xcb:lsb #'xcb:-pack-u4-lsb #'xcb:-pack-u4)
unpack (if xcb:lsb #'xcb:-unpack-u4-lsb #'xcb:-unpack-u4))
(dotimes (i (/ (length reply) 4))
(push (funcall unpack reply (* i 4)) unpacked-reply))
(setq unpacked-reply (delq exwm-xim--@server unpacked-reply)
reply (mapcar pack unpacked-reply))
(xcb:+request exwm-xim--conn
(make-instance 'xcb:ChangeProperty
:mode xcb:PropMode:Replace
:window exwm--root
:property exwm-xim--XIM_SERVERS
:type xcb:Atom:ATOM
:format 32
:data-len (length reply)
:data reply))
(xcb:flush exwm-xim--conn))
(xcb:disconnect exwm-xim--conn)
(setq exwm-xim--conn nil))
(defun exwm-xim-enable ()
"Enable XIM support for EXWM."
(exwm--log)
(add-hook 'exwm-init-hook #'exwm-xim--init)
(add-hook 'exwm-exit-hook #'exwm-xim--exit))
(provide 'exwm-xim)
;;; exwm-xim.el ends here

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# Disable access control for the current user.
xhost +SI:localuser:$USER
# Make Java applications aware this is a non-reparenting window manager.
export _JAVA_AWT_WM_NONREPARENTING=1
# Set default cursor.
xsetroot -cursor_name left_ptr
# Set keyboard repeat rate.
xset r rate 200 60
# Uncomment the following block to use the exwm-xim module.
#export XMODIFIERS=@im=exwm-xim
#export GTK_IM_MODULE=xim
#export QT_IM_MODULE=xim
#export CLUTTER_IM_MODULE=xim
# Finally start Emacs
exec emacs