07e59e0429
* RandR module is now made optional; users can enable it with `exwm-randr-enable`. * Correct the calculation of sizes/coordinates at various places. * Input focus is now tracked with (Emacs) window instead of buffer since the latter can be ambiguous in multi-screen settings.
230 lines
11 KiB
EmacsLisp
230 lines
11 KiB
EmacsLisp
;;; exwm-layout.el --- Layout Module for EXWM -*- lexical-binding: t -*-
|
||
|
||
;; 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 module is responsible for keeping X client window properly displayed.
|
||
|
||
;;; Code:
|
||
|
||
(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)
|
||
(xcb:+request exwm--connection (make-instance 'xcb:MapWindow :window id))
|
||
(xcb:+request exwm--connection
|
||
(make-instance 'xcb:icccm:set-WM_STATE
|
||
:window id :state xcb:icccm:WM_STATE:NormalState
|
||
:icon xcb:Window:None))
|
||
(let* ((buffer (exwm--id->buffer id))
|
||
(edges (or (and buffer
|
||
(with-current-buffer buffer exwm--floating-edges))
|
||
(window-inside-pixel-edges window)))
|
||
(x (elt edges 0))
|
||
(y (elt edges 1))
|
||
(width (- (elt edges 2) (elt edges 0)))
|
||
(height (- (elt edges 3) (elt edges 1))))
|
||
(xcb:+request exwm--connection
|
||
(make-instance 'xcb:ConfigureWindow
|
||
:window id
|
||
:value-mask (logior xcb:ConfigWindow:X
|
||
xcb:ConfigWindow:Y
|
||
xcb:ConfigWindow:Width
|
||
xcb:ConfigWindow:Height
|
||
xcb:ConfigWindow:StackMode)
|
||
:x x :y y :width width :height height
|
||
;; In order to put non-floating window at bottom
|
||
:stack-mode xcb:StackMode:Below))
|
||
(xcb:+request exwm--connection
|
||
(make-instance 'xcb:SendEvent
|
||
:propagate 0 :destination id
|
||
:event-mask xcb:EventMask:StructureNotify
|
||
:event (xcb:marshal
|
||
(make-instance 'xcb:ConfigureNotify
|
||
:event id :window id
|
||
:above-sibling xcb:Window:None
|
||
:x x :y y
|
||
:width width :height height
|
||
:border-width 0
|
||
:override-redirect 0)
|
||
exwm--connection))))
|
||
(xcb:flush exwm--connection))
|
||
|
||
(defun exwm-layout--hide (id)
|
||
"Hide window ID."
|
||
(unless (eq xcb:icccm:WM_STATE:IconicState ;already hidden
|
||
(with-current-buffer (exwm--id->buffer id) exwm-state))
|
||
(exwm--log "Hide #x%x" id)
|
||
(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--client-event-mask))
|
||
(xcb:+request exwm--connection
|
||
(make-instance 'xcb:icccm:set-WM_STATE
|
||
:window id
|
||
:state xcb:icccm:WM_STATE:IconicState
|
||
:icon xcb:Window:None))
|
||
(xcb:flush exwm--connection)))
|
||
|
||
(defun exwm-layout-set-fullscreen (&optional id)
|
||
"Make window ID fullscreen."
|
||
(interactive)
|
||
(with-current-buffer (if id (exwm--id->buffer id) (window-buffer))
|
||
;; Set the floating frame fullscreen first when the client is floating
|
||
(when exwm--floating-frame
|
||
(let* ((outer-id (frame-parameter exwm--floating-frame 'exwm-outer-id))
|
||
(geometry (xcb:+request-unchecked+reply exwm--connection
|
||
(make-instance 'xcb:GetGeometry
|
||
:drawable outer-id))))
|
||
(setq exwm--floating-frame-geometry
|
||
(vector (slot-value geometry 'x) (slot-value geometry 'y)
|
||
(slot-value geometry 'width)
|
||
(slot-value geometry 'height)))
|
||
(xcb:+request exwm--connection
|
||
(make-instance 'xcb:ConfigureWindow
|
||
:window outer-id
|
||
:value-mask (logior xcb:ConfigWindow:X
|
||
xcb:ConfigWindow:Y
|
||
xcb:ConfigWindow:Width
|
||
xcb:ConfigWindow:Height)
|
||
:x 0 :y 0
|
||
:width (frame-pixel-width exwm-workspace--current)
|
||
:height (frame-pixel-height
|
||
exwm-workspace--current))))
|
||
(xcb:flush exwm--connection))
|
||
(xcb:+request exwm--connection
|
||
(make-instance 'xcb:ConfigureWindow
|
||
:window exwm--id
|
||
:value-mask (logior xcb:ConfigWindow:X
|
||
xcb:ConfigWindow:Y
|
||
xcb:ConfigWindow:Width
|
||
xcb:ConfigWindow:Height)
|
||
:x 0 :y 0
|
||
:width (frame-pixel-width exwm-workspace--current)
|
||
:height (frame-pixel-height exwm-workspace--current)))
|
||
(xcb:+request exwm--connection
|
||
(make-instance 'xcb:ewmh:set-_NET_WM_STATE
|
||
:window exwm--id
|
||
:data (vector xcb:Atom:_NET_WM_STATE_FULLSCREEN)))
|
||
(xcb:flush exwm--connection)
|
||
(cl-assert (not exwm--fullscreen))
|
||
(setq exwm--fullscreen t)
|
||
(exwm-input-release-keyboard)))
|
||
|
||
(defun exwm-layout-unset-fullscreen (&optional id)
|
||
"Restore window from fullscreen state."
|
||
(interactive)
|
||
(with-current-buffer (if id (exwm--id->buffer id) (window-buffer))
|
||
;; Restore the floating frame if the client is floating
|
||
(when exwm--floating-frame
|
||
(xcb:+request exwm--connection
|
||
(make-instance 'xcb:ConfigureWindow
|
||
:window (frame-parameter exwm--floating-frame
|
||
'exwm-outer-id)
|
||
:value-mask (logior xcb:ConfigWindow:X
|
||
xcb:ConfigWindow:Y
|
||
xcb:ConfigWindow:Width
|
||
xcb:ConfigWindow:Height)
|
||
:x (elt exwm--floating-frame-geometry 0)
|
||
:y (elt exwm--floating-frame-geometry 1)
|
||
:width (elt exwm--floating-frame-geometry 2)
|
||
:height (elt exwm--floating-frame-geometry 3))))
|
||
(exwm-layout--show exwm--id)
|
||
(xcb:+request exwm--connection
|
||
(make-instance 'xcb:ewmh:set-_NET_WM_STATE :window exwm--id :data []))
|
||
(xcb:flush exwm--connection)
|
||
(cl-assert exwm--fullscreen)
|
||
(setq exwm--fullscreen nil)
|
||
(exwm-input-grab-keyboard)))
|
||
|
||
(defun exwm-layout--refresh ()
|
||
"Refresh layout."
|
||
(let ((frame (selected-frame))
|
||
(placeholder (get-buffer "*scratch*"))
|
||
windows)
|
||
(if (not (memq frame exwm-workspace--list))
|
||
(if (frame-parameter frame 'exwm-window-id)
|
||
;; Refresh a floating frame
|
||
(progn
|
||
(when (eq major-mode 'exwm-mode)
|
||
(let ((window (frame-first-window frame)))
|
||
(with-current-buffer (window-buffer window)
|
||
(exwm--log "Refresh floating window #x%x" exwm--id)
|
||
(exwm-layout--show exwm--id window)))))
|
||
;; Other frames (e.g. terminal/graphical frame of emacsclient)
|
||
;; We shall bury all `exwm-mode' buffers in this case
|
||
(unless placeholder ;create the *scratch* buffer if it's killed
|
||
(setq placeholder (get-buffer-create "*scratch*"))
|
||
(set-buffer-major-mode placeholder))
|
||
(setq windows (window-list frame 0)) ;exclude minibuffer
|
||
(dolist (window windows)
|
||
(with-current-buffer (window-buffer window)
|
||
(when (eq major-mode 'exwm-mode)
|
||
(set-window-buffer window placeholder)))))
|
||
;; Refresh the whole workspace
|
||
;; Workspaces other than the active one can also be refreshed (RandR)
|
||
(exwm--log "Refresh workspace %s" frame)
|
||
(unless placeholder ;create the *scratch* buffer if it's killed
|
||
(setq placeholder (get-buffer-create "*scratch*"))
|
||
(set-buffer-major-mode placeholder))
|
||
(dolist (pair exwm--id-buffer-alist)
|
||
(with-current-buffer (cdr pair)
|
||
;; Exclude windows on other workspaces and floating frames
|
||
(when (and (eq frame exwm--frame) (not exwm--floating-frame))
|
||
(setq windows (get-buffer-window-list (current-buffer) 0))
|
||
(if (not windows)
|
||
(exwm-layout--hide exwm--id)
|
||
(exwm-layout--show exwm--id (car windows))
|
||
(dolist (i (cdr windows))
|
||
(set-window-buffer i placeholder))))))
|
||
;; Make sure windows floating / on other workspaces are excluded
|
||
(dolist (window (window-list frame 0))
|
||
(with-current-buffer (window-buffer window)
|
||
(when (and (eq major-mode 'exwm-mode)
|
||
(or exwm--floating-frame (not (eq frame exwm--frame))))
|
||
(set-window-buffer window placeholder)))))))
|
||
|
||
(defun exwm-layout--on-minibuffer-setup ()
|
||
"Refresh layout when minibuffer grows."
|
||
(run-with-idle-timer 0.01 nil ;FIXME
|
||
(lambda ()
|
||
(when (and (< 1 (window-height (minibuffer-window)))
|
||
(not (and (eq major-mode 'exwm-mode)
|
||
exwm--floating-frame)))
|
||
(exwm-layout--refresh)))))
|
||
|
||
(defun exwm-layout--init ()
|
||
"Initialize layout module."
|
||
;; Auto refresh layout
|
||
(add-hook 'window-configuration-change-hook 'exwm-layout--refresh)
|
||
;; Refresh when minibuffer grows
|
||
(add-hook 'minibuffer-setup-hook 'exwm-layout--on-minibuffer-setup t))
|
||
|
||
|
||
|
||
(provide 'exwm-layout)
|
||
|
||
;;; exwm-layout.el ends here
|