;;; exwm-manage.el --- Window Management Module for -*- lexical-binding: t -*- ;;; EXWM ;; Copyright (C) 2015-2018 Free Software Foundation, Inc. ;; Author: Chris Feng ;; 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 . ;;; 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." :type '(alist :key-type (sexp :tag "Matching criterion" nil) :value-type (plist :tag "Configurations" :key-type (choice (const :tag "Floating" floating) (const :tag "X" x) (const :tag "Y" y) (const :tag "Width" width) (const :tag "Height" height) (const :tag "Border width" border-width) (const :tag "Fullscreen" fullscreen) (const :tag "Floating mode-line" floating-mode-line) (const :tag "Tiling mode-line" tiling-mode-line) (const :tag "Floating header-line" floating-header-line) (const :tag "Tiling header-line" tiling-header-line) (const :tag "Char-mode" char-mode) (const :tag "Prefix keys" prefix-keys) (const :tag "Simulation keys" simulation-keys) (const :tag "Workspace" workspace) ;; For forward compatibility. (other)) :value-type (sexp :tag "Value" nil)))) ;; 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 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-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 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 (eval (car i)) (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--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 (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) ;; 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))) ;; Check the _MOTIF_WM_HINTS property. (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--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)) (kill-buffer (current-buffer))) (throw 'return 'ignored)) (setq exwm--configurations (exwm-manage--get-configurations)) (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) (exwm--update-title id) (exwm--update-protocols id) (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:MapWindow :window exwm--id))) ;; 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 "ConfigureRequest from #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 "MapRequest from #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. (xcb:+request exwm--connection (make-instance 'xcb:ConfigureWindow :window window :value-mask xcb:ConfigWindow:StackMode :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 "DestroyNotify from #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) (let ((atom-name "_MOTIF_WM_HINTS")) (setq exwm-manage--_MOTIF_WM_HINTS (slot-value (xcb:+request-unchecked+reply exwm--connection (make-instance 'xcb:InternAtom :only-if-exists 0 :name-len (length atom-name) :name atom-name)) 'atom))) (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." (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