Upstream EXWM is now sort-of unmaintained[0], but some important PRs are pending[1] which I would like to absorb here somehow. [0]: https://github.com/ch11ng/exwm/issues/845 [1]: https://github.com/ch11ng/exwm/pull/848 git-subtree-dir: third_party/exwm git-subtree-mainline:7894d7e178git-subtree-split:0368127976Change-Id: I078358c0ea1d2bac99111748ce9c137d2804ac4e
		
			
				
	
	
		
			620 lines
		
	
	
	
		
			26 KiB
		
	
	
	
		
			EmacsLisp
		
	
	
	
	
	
			
		
		
	
	
			620 lines
		
	
	
	
		
			26 KiB
		
	
	
	
		
			EmacsLisp
		
	
	
	
	
	
;;; exwm-layout.el --- Layout Module for EXWM  -*- lexical-binding: t -*-
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;; Copyright (C) 2015-2020 Free Software Foundation, Inc.
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;; Author: Chris Feng <chris.w.feng@gmail.com>
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;; This file is part of GNU Emacs.
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;; GNU Emacs is free software: you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation, either version 3 of the License, or
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;; (at your option) any later version.
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;; GNU Emacs is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
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;;; Commentary:
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;; This module is responsible for keeping X client window properly displayed.
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;;; Code:
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(require 'exwm-core)
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(defgroup exwm-layout nil
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  "Layout."
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  :version "25.3"
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  :group 'exwm)
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(defcustom exwm-layout-auto-iconify t
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  "Non-nil to automatically iconify unused X windows when possible."
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  :type 'boolean)
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(defcustom exwm-layout-show-all-buffers nil
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  "Non-nil to allow switching to buffers on other workspaces."
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  :type 'boolean)
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(defconst exwm-layout--floating-hidden-position -101
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  "Where to place hidden floating X windows.")
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(defvar exwm-layout--other-buffer-exclude-buffers nil
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  "List of buffers that should not be selected by `other-buffer'.")
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(defvar exwm-layout--other-buffer-exclude-exwm-mode-buffers nil
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  "When non-nil, prevent EXWM buffers from being selected by `other-buffer'.")
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(defvar exwm-layout--timer nil "Timer used to track echo area changes.")
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(defvar exwm-workspace--current)
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(defvar exwm-workspace--frame-y-offset)
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(declare-function exwm-input--release-keyboard "exwm-input.el")
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(declare-function exwm-input--grab-keyboard "exwm-input.el")
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(declare-function exwm-input-grab-keyboard "exwm-input.el")
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(declare-function exwm-workspace--active-p "exwm-workspace.el" (frame))
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(declare-function exwm-workspace--client-p "exwm-workspace.el"
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                  (&optional frame))
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(declare-function exwm-workspace--minibuffer-own-frame-p "exwm-workspace.el")
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(declare-function exwm-workspace--workspace-p "exwm-workspace.el"
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                  (workspace))
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(declare-function exwm-workspace-move-window "exwm-workspace.el"
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                  (frame-or-index &optional id))
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(defun exwm-layout--set-state (id state)
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  "Set WM_STATE."
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  (exwm--log "id=#x%x" id)
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  (xcb:+request exwm--connection
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      (make-instance 'xcb:icccm:set-WM_STATE
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                     :window id :state state :icon xcb:Window:None))
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  (with-current-buffer (exwm--id->buffer id)
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    (setq exwm-state state)))
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(defun exwm-layout--iconic-state-p (&optional id)
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  (= xcb:icccm:WM_STATE:IconicState
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     (if id
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         (buffer-local-value 'exwm-state (exwm--id->buffer id))
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       exwm-state)))
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(defun exwm-layout--set-ewmh-state (xwin)
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  "Set _NET_WM_STATE."
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  (with-current-buffer (exwm--id->buffer xwin)
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    (xcb:+request exwm--connection
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        (make-instance 'xcb:ewmh:set-_NET_WM_STATE
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                       :window exwm--id
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                       :data exwm--ewmh-state))))
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(defun exwm-layout--fullscreen-p ()
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  (when (derived-mode-p 'exwm-mode)
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    (memq xcb:Atom:_NET_WM_STATE_FULLSCREEN exwm--ewmh-state)))
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(defun exwm-layout--auto-iconify ()
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  (when (and exwm-layout-auto-iconify
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             (not exwm-transient-for))
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    (let ((xwin exwm--id)
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          (state exwm-state))
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      (dolist (pair exwm--id-buffer-alist)
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        (with-current-buffer (cdr pair)
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          (when (and exwm--floating-frame
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                     (eq exwm-transient-for xwin)
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                     (not (eq exwm-state state)))
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            (if (eq state xcb:icccm:WM_STATE:NormalState)
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                (exwm-layout--refresh-floating exwm--floating-frame)
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              (exwm-layout--hide exwm--id))))))))
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(defun exwm-layout--show (id &optional window)
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  "Show window ID exactly fit in the Emacs window WINDOW."
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  (exwm--log "Show #x%x in %s" id window)
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  (let* ((edges (window-inside-absolute-pixel-edges window))
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         (x (pop edges))
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         (y (pop edges))
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         (width (- (pop edges) x))
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         (height (- (pop edges) y))
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         frame-x frame-y frame-width frame-height)
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    (with-current-buffer (exwm--id->buffer id)
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      (when exwm--floating-frame
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        (setq frame-width (frame-pixel-width exwm--floating-frame)
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              frame-height (+ (frame-pixel-height exwm--floating-frame)
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                              ;; Use `frame-outer-height' in the future.
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                              exwm-workspace--frame-y-offset))
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        (when exwm--floating-frame-position
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          (setq frame-x (elt exwm--floating-frame-position 0)
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                frame-y (elt exwm--floating-frame-position 1)
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                x (+ x frame-x (- exwm-layout--floating-hidden-position))
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                y (+ y frame-y (- exwm-layout--floating-hidden-position)))
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          (setq exwm--floating-frame-position nil))
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        (exwm--set-geometry (frame-parameter exwm--floating-frame
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                                             'exwm-container)
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                            frame-x frame-y frame-width frame-height))
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      (when (exwm-layout--fullscreen-p)
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        (with-slots ((x* x)
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                     (y* y)
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                     (width* width)
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                     (height* height))
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            (exwm-workspace--get-geometry exwm--frame)
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          (setq x x*
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                y y*
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                width width*
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                height height*)))
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      (exwm--set-geometry id x y width height)
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      (xcb:+request exwm--connection (make-instance 'xcb:MapWindow :window id))
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      (exwm-layout--set-state id xcb:icccm:WM_STATE:NormalState)
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      (setq exwm--ewmh-state
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            (delq xcb:Atom:_NET_WM_STATE_HIDDEN exwm--ewmh-state))
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      (exwm-layout--set-ewmh-state id)
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      (exwm-layout--auto-iconify)))
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  (xcb:flush exwm--connection))
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(defun exwm-layout--hide (id)
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  "Hide window ID."
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  (with-current-buffer (exwm--id->buffer id)
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    (unless (or (exwm-layout--iconic-state-p)
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                (and exwm--floating-frame
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                     (eq 4294967295. exwm--desktop)))
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      (exwm--log "Hide #x%x" id)
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      (when exwm--floating-frame
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        (let* ((container (frame-parameter exwm--floating-frame
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                                           'exwm-container))
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               (geometry (xcb:+request-unchecked+reply exwm--connection
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                             (make-instance 'xcb:GetGeometry
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                                            :drawable container))))
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          (setq exwm--floating-frame-position
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                (vector (slot-value geometry 'x) (slot-value geometry 'y)))
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          (exwm--set-geometry container exwm-layout--floating-hidden-position
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                              exwm-layout--floating-hidden-position
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                              1
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                              1)))
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      (xcb:+request exwm--connection
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          (make-instance 'xcb:ChangeWindowAttributes
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                         :window id :value-mask xcb:CW:EventMask
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                         :event-mask xcb:EventMask:NoEvent))
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      (xcb:+request exwm--connection
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          (make-instance 'xcb:UnmapWindow :window id))
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      (xcb:+request exwm--connection
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          (make-instance 'xcb:ChangeWindowAttributes
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                         :window id :value-mask xcb:CW:EventMask
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                         :event-mask (exwm--get-client-event-mask)))
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      (exwm-layout--set-state id xcb:icccm:WM_STATE:IconicState)
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      (cl-pushnew xcb:Atom:_NET_WM_STATE_HIDDEN exwm--ewmh-state)
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      (exwm-layout--set-ewmh-state id)
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      (exwm-layout--auto-iconify)
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      (xcb:flush exwm--connection))))
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;;;###autoload
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(cl-defun exwm-layout-set-fullscreen (&optional id)
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  "Make window ID fullscreen."
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  (interactive)
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  (exwm--log "id=#x%x" (or id 0))
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  (unless (and (or id (derived-mode-p 'exwm-mode))
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               (not (exwm-layout--fullscreen-p)))
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    (cl-return-from exwm-layout-set-fullscreen))
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  (with-current-buffer (if id (exwm--id->buffer id) (window-buffer))
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    ;; Expand the X window to fill the whole screen.
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    (with-slots (x y width height) (exwm-workspace--get-geometry exwm--frame)
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      (exwm--set-geometry exwm--id x y width height))
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    ;; Raise the X window.
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    (xcb:+request exwm--connection
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        (make-instance 'xcb:ConfigureWindow
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                       :window exwm--id
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                       :value-mask (logior xcb:ConfigWindow:BorderWidth
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                                           xcb:ConfigWindow:StackMode)
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                       :border-width 0
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                       :stack-mode xcb:StackMode:Above))
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    (cl-pushnew xcb:Atom:_NET_WM_STATE_FULLSCREEN exwm--ewmh-state)
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    (exwm-layout--set-ewmh-state exwm--id)
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    (xcb:flush exwm--connection)
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    (set-window-dedicated-p (get-buffer-window) t)
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    (exwm-input--release-keyboard exwm--id)))
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;;;###autoload
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(cl-defun exwm-layout-unset-fullscreen (&optional id)
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  "Restore window from fullscreen state."
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  (interactive)
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  (exwm--log "id=#x%x" (or id 0))
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  (unless (and (or id (derived-mode-p 'exwm-mode))
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               (exwm-layout--fullscreen-p))
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    (cl-return-from exwm-layout-unset-fullscreen))
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  (with-current-buffer (if id (exwm--id->buffer id) (window-buffer))
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    (setq exwm--ewmh-state
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          (delq xcb:Atom:_NET_WM_STATE_FULLSCREEN exwm--ewmh-state))
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    (if exwm--floating-frame
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        (exwm-layout--show exwm--id (frame-root-window exwm--floating-frame))
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      (xcb:+request exwm--connection
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          (make-instance 'xcb:ConfigureWindow
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                         :window exwm--id
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                         :value-mask (logior xcb:ConfigWindow:Sibling
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                                             xcb:ConfigWindow:StackMode)
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                         :sibling exwm--guide-window
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                         :stack-mode xcb:StackMode:Above))
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      (let ((window (get-buffer-window nil t)))
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        (when window
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          (exwm-layout--show exwm--id window))))
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    (setq exwm--ewmh-state
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          (delq xcb:Atom:_NET_WM_STATE_FULLSCREEN exwm--ewmh-state))
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    (exwm-layout--set-ewmh-state exwm--id)
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    (xcb:flush exwm--connection)
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    (set-window-dedicated-p (get-buffer-window) nil)
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    (when (eq 'line-mode exwm--selected-input-mode)
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      (exwm-input--grab-keyboard exwm--id))))
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;;;###autoload
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(cl-defun exwm-layout-toggle-fullscreen (&optional id)
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  "Toggle fullscreen mode."
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  (interactive (list (exwm--buffer->id (window-buffer))))
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  (exwm--log "id=#x%x" (or id 0))
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  (unless (or id (derived-mode-p 'exwm-mode))
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    (cl-return-from exwm-layout-toggle-fullscreen))
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  (when id
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    (with-current-buffer (exwm--id->buffer id)
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      (if (exwm-layout--fullscreen-p)
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          (exwm-layout-unset-fullscreen id)
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        (exwm-layout-set-fullscreen id)))))
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(defun exwm-layout--other-buffer-predicate (buffer)
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  "Return non-nil when the BUFFER may be displayed in selected frame.
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Prevents EXWM-mode buffers already being displayed on some other window from
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being selected.
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Should be set as `buffer-predicate' frame parameter for all
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frames.  Used by `other-buffer'.
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When variable `exwm-layout--other-buffer-exclude-exwm-mode-buffers'
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is t EXWM buffers are never selected by `other-buffer'.
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When variable `exwm-layout--other-buffer-exclude-buffers' is a
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list of buffers, EXWM buffers belonging to that list are never
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selected by `other-buffer'."
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  (or (not (with-current-buffer buffer (derived-mode-p 'exwm-mode)))
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      (and (not exwm-layout--other-buffer-exclude-exwm-mode-buffers)
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           (not (memq buffer exwm-layout--other-buffer-exclude-buffers))
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           ;; Do not select if already shown in some window.
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           (not (get-buffer-window buffer t)))))
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(defun exwm-layout--set-client-list-stacking ()
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  "Set _NET_CLIENT_LIST_STACKING."
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  (exwm--log)
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  (let (id clients-floating clients clients-iconic clients-other)
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    (dolist (pair exwm--id-buffer-alist)
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      (setq id (car pair))
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      (with-current-buffer (cdr pair)
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        (if (eq exwm--frame exwm-workspace--current)
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            (if exwm--floating-frame
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                ;; A floating X window on the current workspace.
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                (setq clients-floating (cons id clients-floating))
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              (if (get-buffer-window (cdr pair) exwm-workspace--current)
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                  ;; A normal tilling X window on the current workspace.
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                  (setq clients (cons id clients))
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                ;; An iconic tilling X window on the current workspace.
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                (setq clients-iconic (cons id clients-iconic))))
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          ;; X window on other workspaces.
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          (setq clients-other (cons id clients-other)))))
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    (xcb:+request exwm--connection
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        (make-instance 'xcb:ewmh:set-_NET_CLIENT_LIST_STACKING
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                       :window exwm--root
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                       :data (vconcat (append clients-other clients-iconic
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                                              clients clients-floating))))))
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(defun exwm-layout--refresh (&optional frame)
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  "Refresh layout."
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  ;; `window-size-change-functions' sets this argument while
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  ;; `window-configuration-change-hook' makes the frame selected.
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  (unless frame
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    (setq frame (selected-frame)))
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  (exwm--log "frame=%s" frame)
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  (if (not (exwm-workspace--workspace-p frame))
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      (if (frame-parameter frame 'exwm-outer-id)
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          (exwm-layout--refresh-floating frame)
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        (exwm-layout--refresh-other frame))
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    (exwm-layout--refresh-workspace frame)))
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(defun exwm-layout--refresh-floating (frame)
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  "Refresh floating frame FRAME."
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  (exwm--log "Refresh floating %s" frame)
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  (let ((window (frame-first-window frame)))
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    (with-current-buffer (window-buffer window)
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      (when (and (derived-mode-p 'exwm-mode)
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                 ;; It may be a buffer waiting to be killed.
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                 (exwm--id->buffer exwm--id))
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        (exwm--log "Refresh floating window #x%x" exwm--id)
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        (if (exwm-workspace--active-p exwm--frame)
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            (exwm-layout--show exwm--id window)
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          (exwm-layout--hide exwm--id))))))
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(defun exwm-layout--refresh-other (frame)
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  "Refresh client or nox frame FRAME."
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  ;; Other frames (e.g. terminal/graphical frame of emacsclient)
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  ;; We shall bury all `exwm-mode' buffers in this case
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  (exwm--log "Refresh other %s" frame)
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  (let ((windows (window-list frame 'nomini)) ;exclude minibuffer
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        (exwm-layout--other-buffer-exclude-exwm-mode-buffers t))
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    (dolist (window windows)
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      (with-current-buffer (window-buffer window)
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        (when (derived-mode-p 'exwm-mode)
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          (if (window-prev-buffers window)
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              (switch-to-prev-buffer window)
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            (switch-to-next-buffer window)))))))
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(defun exwm-layout--refresh-workspace (frame)
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  "Refresh workspace frame FRAME."
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  (exwm--log "Refresh workspace %s" frame)
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  ;; Workspaces other than the active one can also be refreshed (RandR)
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  (let (covered-buffers   ;EXWM-buffers covered by a new X window.
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        vacated-windows)  ;Windows previously displaying EXWM-buffers.
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    (dolist (pair exwm--id-buffer-alist)
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      (with-current-buffer (cdr pair)
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        (when (and (not exwm--floating-frame) ;exclude floating X windows
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                   (or exwm-layout-show-all-buffers
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                       ;; Exclude X windows on other workspaces
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                       (eq frame exwm--frame)))
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          (let (;; List of windows in current frame displaying the `exwm-mode'
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                ;; buffers.
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                (windows (get-buffer-window-list (current-buffer) 'nomini
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                                                 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
 |