mirror of
https://github.com/ch11ng/exwm.git
synced 2024-11-23 19:47:58 +01:00
d1806e9188
* exwm-layout.el (exwm-layout-unset-fullscreen)
(exwm-layout-set-fullscreen): Use `user-error' rather than
`cl-assert'.
* exwm-input.el (exwm-input--set-focus): Silently accept unknown
ids. (exwm-input--grab-keyboard) (exwm-input--release-keyboard):
Silently ignore calls for windows that have no buffer.
* exwm-manage.el (exwm-manage--kill-client): Don't throw error
when trying to kill a vanished window.
355 lines
16 KiB
EmacsLisp
355 lines
16 KiB
EmacsLisp
;;; exwm-manage.el --- Window Management Module for -*- lexical-binding: t -*-
|
||
;;; EXWM
|
||
|
||
;; Copyright (C) 2015 Chris Feng
|
||
|
||
;; Author: Chris Feng <chris.w.feng@gmail.com>
|
||
;; Keywords: unix
|
||
|
||
;; This file is not part of GNU Emacs.
|
||
|
||
;; This file 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.
|
||
|
||
;; This file 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 this file. If not, see <http://www.gnu.org/licenses/>.
|
||
|
||
;;; Commentary:
|
||
|
||
;; This is the fundamental module of EXWM that deals with window management.
|
||
|
||
;;; Code:
|
||
|
||
(require 'exwm-input)
|
||
|
||
(defvar exwm-manage-finish-hook nil
|
||
"Normal hook run after a window is just managed, in the context of the
|
||
corresponding buffer.")
|
||
|
||
(defun exwm-manage--update-geometry (id &optional force)
|
||
"Update window geometry."
|
||
(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))))
|
||
(when reply ;nil when destroyed
|
||
(setq exwm--geometry reply))))))
|
||
|
||
(defun exwm-manage--manage-window (id)
|
||
"Manage window ID."
|
||
(exwm--log "Try to manage #x%x" id)
|
||
(catch 'return
|
||
;; Ensure it's not managed
|
||
(when (assoc id exwm--id-buffer-alist)
|
||
(exwm--log "#x%x is already managed" id)
|
||
(throw 'return 'managed))
|
||
;; 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--client-event-mask))
|
||
(throw 'return 'dead))
|
||
(with-current-buffer (generate-new-buffer "*EXWM*")
|
||
(push `(,id . ,(current-buffer)) exwm--id-buffer-alist)
|
||
(exwm-mode)
|
||
(setq exwm--id id)
|
||
(exwm--update-window-type id)
|
||
(exwm--update-class id)
|
||
(exwm-manage--update-geometry id)
|
||
;; No need to manage (please check OverrideRedirect outside)
|
||
(when (or
|
||
(not
|
||
(or (not exwm-window-type)
|
||
(memq xcb:Atom:_NET_WM_WINDOW_TYPE_UTILITY exwm-window-type)
|
||
(memq xcb:Atom:_NET_WM_WINDOW_TYPE_DIALOG exwm-window-type)
|
||
(memq xcb:Atom:_NET_WM_WINDOW_TYPE_NORMAL exwm-window-type)))
|
||
;; For Java applications
|
||
(and (memq xcb:Atom:_NET_WM_WINDOW_TYPE_NORMAL exwm-window-type)
|
||
exwm-instance-name
|
||
(string-prefix-p "sun-awt-X11-" exwm-instance-name)
|
||
(not (string-suffix-p "XFramePeer" exwm-instance-name))))
|
||
(exwm--log "No need to manage #x%x" id)
|
||
;; Remove all events
|
||
(xcb:+request-checked+request-check exwm--connection
|
||
(make-instance 'xcb:ChangeWindowAttributes
|
||
:window id :value-mask xcb:CW:EventMask
|
||
: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
|
||
;; Reparent to virtual root (essential)
|
||
(xcb:+request exwm--connection
|
||
(make-instance 'xcb:ReparentWindow
|
||
:window id
|
||
:parent (frame-parameter exwm-workspace--current
|
||
'exwm-window-id)
|
||
:x x :y y))
|
||
;; Center window of type _NET_WM_WINDOW_TYPE_SPLASH
|
||
(when (memq xcb:Atom:_NET_WM_WINDOW_TYPE_SPLASH exwm-window-type)
|
||
(xcb:+request exwm--connection
|
||
(make-instance 'xcb:ConfigureWindow
|
||
:window id
|
||
:value-mask (logior xcb:ConfigWindow:X
|
||
xcb:ConfigWindow:Y)
|
||
:x (/ (- (frame-pixel-width
|
||
exwm-workspace--current)
|
||
width)
|
||
2)
|
||
:y (/ (- (frame-pixel-height
|
||
exwm-workspace--current)
|
||
height)
|
||
2)))))
|
||
(xcb:flush exwm--connection)
|
||
(setq kill-buffer-query-functions nil)
|
||
(setq exwm--id-buffer-alist (assq-delete-all id exwm--id-buffer-alist))
|
||
(kill-buffer (current-buffer))
|
||
(throw 'return 'ignored))
|
||
;; 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))
|
||
(xcb:+request exwm--connection ;grab buttons for set focus/move/resize
|
||
(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 xcb:ButtonIndex:Any
|
||
:modifiers xcb:ModMask:Any))
|
||
(xcb:flush exwm--connection)
|
||
(exwm--update-title id)
|
||
(exwm--update-transient-for id)
|
||
(exwm--update-normal-hints id)
|
||
(exwm--update-hints id)
|
||
(exwm--update-protocols id)
|
||
(exwm--update-state id)
|
||
(if (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)
|
||
(exwm-floating--unset-floating id))
|
||
(exwm-input-grab-keyboard id)
|
||
(exwm-workspace--update-switch-history)
|
||
(with-current-buffer (exwm--id->buffer id)
|
||
(run-hooks 'exwm-manage-finish-hook)))))
|
||
|
||
(defun exwm-manage--unmanage-window (id &optional withdraw-only)
|
||
"Unmanage window ID."
|
||
(let ((buffer (exwm--id->buffer id)))
|
||
(exwm--log "Unmanage #x%x (buffer: %s)" id buffer)
|
||
(setq exwm--id-buffer-alist (assq-delete-all id exwm--id-buffer-alist))
|
||
(when (buffer-live-p buffer)
|
||
(with-current-buffer buffer
|
||
(exwm-workspace--update-switch-history)
|
||
;;
|
||
(when withdraw-only
|
||
;; Reparent back to root
|
||
(xcb:+request exwm--connection
|
||
(make-instance 'xcb:ChangeWindowAttributes
|
||
:window id :value-mask xcb:CW:EventMask
|
||
:event-mask xcb:EventMask:NoEvent))
|
||
(let (x y geometry geometry-parent)
|
||
(if (not exwm--floating-frame)
|
||
(setq x 0 y 0) ;the position does not matter
|
||
(setq geometry-parent
|
||
(xcb:+request-unchecked+reply exwm--connection
|
||
(make-instance 'xcb:GetGeometry
|
||
:drawable
|
||
(frame-parameter exwm--floating-frame
|
||
'exwm-outer-id)))
|
||
geometry (xcb:+request-unchecked+reply exwm--connection
|
||
(make-instance 'xcb:GetGeometry
|
||
:drawable id)))
|
||
(if (not (and geometry-parent geometry))
|
||
(setq x 0 y 0) ;e.g. have been destroyed
|
||
(setq x (+ (slot-value geometry-parent 'x)
|
||
(slot-value geometry 'x))
|
||
y (+ (slot-value geometry-parent 'y)
|
||
(slot-value geometry 'y)))))
|
||
(xcb:+request exwm--connection
|
||
(make-instance 'xcb:ReparentWindow
|
||
:window id :parent exwm--root :x x :y y)))
|
||
;; Delete WM_STATE property
|
||
(xcb:+request exwm--connection
|
||
(make-instance 'xcb:DeleteProperty
|
||
:window id :property xcb:Atom:WM_STATE))
|
||
(xcb:flush exwm--connection))
|
||
(setq kill-buffer-query-functions nil)
|
||
(let ((floating exwm--floating-frame))
|
||
(kill-buffer)
|
||
(when floating
|
||
(select-window
|
||
(frame-selected-window exwm-workspace--current))))))))
|
||
|
||
(defun exwm-manage--scan ()
|
||
"Search for existing windows and try to manage them."
|
||
(let* ((tree (xcb:+request-unchecked+reply exwm--connection
|
||
(make-instance 'xcb:QueryTree :window exwm--root))))
|
||
(dolist (i (slot-value tree 'children))
|
||
(with-slots (override-redirect map-state)
|
||
(xcb:+request-unchecked+reply exwm--connection
|
||
(make-instance 'xcb:GetWindowAttributes :window i))
|
||
(when (and (= 0 override-redirect) (= xcb:MapState:Viewable map-state))
|
||
(exwm-manage--manage-window i))))))
|
||
|
||
(defvar exwm-manage--ping-lock nil
|
||
"Non-nil indicates EXWM is pinging a window.")
|
||
(defvar exwm-manage-ping-timeout 3 "Seconds to wait before killing a client.")
|
||
|
||
(defun exwm-manage--close-window (id &optional buffer)
|
||
"Close window ID in a proper way."
|
||
(catch 'return
|
||
(unless buffer (setq buffer (exwm--id->buffer id)))
|
||
;; Destroy the client window if it does not support WM_DELETE_WINDOW
|
||
(unless (and (buffer-live-p buffer)
|
||
(with-current-buffer buffer
|
||
(memq xcb:Atom:WM_DELETE_WINDOW exwm--protocols)))
|
||
(xcb:+request exwm--connection
|
||
(make-instance 'xcb:DestroyWindow :window id))
|
||
(xcb:flush exwm--connection)
|
||
(throw 'return nil))
|
||
;; Try to close the 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)
|
||
;; Try to determine if the client stop responding
|
||
;; FIXME: check
|
||
(with-current-buffer buffer
|
||
(when (memq xcb:Atom:_NET_WM_PING exwm--protocols)
|
||
(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 (yes-or-no-p (format "\
|
||
`%s' is not responding. Would you like to kill it? " (buffer-name buffer)))
|
||
(progn (exwm-manage--kill-client id)
|
||
(throw 'return nil))
|
||
(throw 'return nil)))
|
||
(while (and exwm-manage--ping-lock
|
||
(exwm--id->buffer id)) ;may have be destroyed
|
||
(accept-process-output nil 0.1)))
|
||
(throw 'return nil)))
|
||
(throw 'return nil)))
|
||
|
||
(defun exwm-manage--kill-client (&optional id)
|
||
"Kill an X client."
|
||
(interactive)
|
||
(unless id (setq id (exwm--buffer->id (current-buffer))))
|
||
(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))))
|
||
(if pid
|
||
(signal-process pid 'SIGKILL)
|
||
(xcb:+request exwm--connection
|
||
(make-instance 'xcb:KillClient :resource id))
|
||
(xcb:flush exwm--connection))))
|
||
|
||
(defun exwm-manage--on-ConfigureRequest (data synthetic)
|
||
"Handle ConfigureRequest event."
|
||
(let ((obj (make-instance 'xcb:ConfigureRequest))
|
||
buffer edges)
|
||
(xcb:unmarshal obj data)
|
||
(with-slots (stack-mode window sibling x y width height border-width
|
||
value-mask)
|
||
obj
|
||
(exwm--log "ConfigureRequest from #x%x (#x%x) @%dx%d%+d%+d, border: %d"
|
||
value-mask window width height x y border-width)
|
||
(if (setq buffer (exwm--id->buffer window))
|
||
;; Send client message for managed windows
|
||
(with-current-buffer buffer
|
||
(setq edges
|
||
(if exwm--fullscreen
|
||
(list 0 0
|
||
(frame-pixel-width exwm-workspace--current)
|
||
(frame-pixel-height exwm-workspace--current))
|
||
(or exwm--floating-edges
|
||
(window-inside-absolute-pixel-edges
|
||
(get-buffer-window)))))
|
||
(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))))
|
||
(exwm--log "ConfigureWindow (preserve geometry)")
|
||
;; Configure unmanaged windows
|
||
(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)
|
||
(exwm--log "MapRequest from #x%x" (slot-value obj 'window))
|
||
(exwm-manage--manage-window (slot-value obj 'window))))
|
||
|
||
(defun exwm-manage--on-UnmapNotify (data synthetic)
|
||
"Handle UnmapNotify event."
|
||
(unless synthetic
|
||
(let ((obj (make-instance 'xcb:UnmapNotify)))
|
||
(xcb:unmarshal obj data)
|
||
(exwm--log "UnmapNotify from #x%x" (slot-value obj 'window))
|
||
(exwm-manage--unmanage-window (slot-value obj 'window) t))))
|
||
|
||
(defun exwm-manage--on-DestroyNotify (data synthetic)
|
||
"Handle DestroyNotify event."
|
||
(unless synthetic
|
||
(let ((obj (make-instance 'xcb:DestroyNotify)))
|
||
(xcb:unmarshal obj data)
|
||
(exwm--log "DestroyNotify from #x%x" (slot-value obj 'window))
|
||
(exwm-manage--unmanage-window (slot-value obj 'window)))))
|
||
|
||
(defun exwm-manage--init ()
|
||
"Initialize manage module."
|
||
(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:DestroyNotify
|
||
'exwm-manage--on-DestroyNotify))
|
||
|
||
|
||
|
||
(provide 'exwm-manage)
|
||
|
||
;;; exwm-manage.el ends here
|