048994c794
Remove `exwm--with-current-id`, which was introduced to as a wrapper to `with-current-buffer` to do extra checks. Note that in functions run as hooks, the validation of window ID is still required as they are not synchronized with events.
223 lines
10 KiB
EmacsLisp
223 lines
10 KiB
EmacsLisp
;;; exwm-layout.el --- Layout Module for EXWM -*- lexical-binding: t -*-
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;; Copyright (C) 2015 Chris Feng
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;; Author: Chris Feng <chris.w.feng@gmail.com>
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;; Keywords: unix
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;; This file is not part of GNU Emacs.
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;; This file 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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;; This file 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 this file. 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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(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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(xcb:+request exwm--connection (make-instance 'xcb:MapWindow :window 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 xcb:icccm:WM_STATE:NormalState
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:icon xcb:Window:None))
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(let* ((buffer (exwm--id->buffer id))
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(edges (or (and buffer
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(with-current-buffer buffer exwm--floating-edges))
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(window-inside-pixel-edges window)))
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(x (elt edges 0))
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(y (elt edges 1))
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(width (- (elt edges 2) (elt edges 0)))
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(height (- (elt edges 3) (elt edges 1))))
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(xcb:+request exwm--connection
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(make-instance 'xcb:ConfigureWindow
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:window id
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:value-mask (logior xcb:ConfigWindow:X
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xcb:ConfigWindow:Y
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xcb:ConfigWindow:Width
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xcb:ConfigWindow:Height
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xcb:ConfigWindow:StackMode)
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:x x :y y :width width :height height
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;; In order to put non-floating window at bottom
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:stack-mode xcb:StackMode:Below))
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(xcb:+request exwm--connection
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(make-instance 'xcb:SendEvent
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:propagate 0 :destination id
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:event-mask xcb:EventMask:StructureNotify
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:event (xcb:marshal
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(make-instance 'xcb:ConfigureNotify
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:event id :window id
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:above-sibling xcb:Window:None
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:x x :y y
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:width width :height height
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:border-width 0
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:override-redirect 0)
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exwm--connection))))
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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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(unless (eq xcb:icccm:WM_STATE:IconicState ;already hidden
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(with-current-buffer (exwm--id->buffer id) exwm-state))
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(exwm--log "Hide #x%x" 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 xcb:EventMask:NoEvent))
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(xcb:+request exwm--connection (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--client-event-mask))
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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
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:state xcb:icccm:WM_STATE:IconicState
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:icon xcb:Window:None))
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(xcb:flush exwm--connection)))
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(defun exwm-layout-set-fullscreen (&optional id)
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"Make window ID fullscreen."
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(interactive)
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(with-current-buffer (if id (exwm--id->buffer id) (window-buffer))
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;; Set the floating frame fullscreen first when the client is floating
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(when exwm--floating-frame
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(let* ((outer-id (frame-parameter exwm--floating-frame 'exwm-outer-id))
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(geometry (xcb:+request-unchecked+reply exwm--connection
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(make-instance 'xcb:GetGeometry
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:drawable outer-id))))
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(setq exwm--floating-frame-geometry
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(vector (slot-value geometry 'x) (slot-value geometry 'y)
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(slot-value geometry 'width)
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(slot-value geometry 'height)))
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(xcb:+request exwm--connection
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(make-instance 'xcb:ConfigureWindow
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:window outer-id
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:value-mask (logior xcb:ConfigWindow:X
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xcb:ConfigWindow:Y
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xcb:ConfigWindow:Width
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xcb:ConfigWindow:Height)
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:x 0 :y 0
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:width (x-display-pixel-width)
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:height (x-display-pixel-height))))
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(xcb:flush exwm--connection))
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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:X
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xcb:ConfigWindow:Y
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xcb:ConfigWindow:Width
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xcb:ConfigWindow:Height)
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:x 0 :y 0
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:width (x-display-pixel-width)
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:height (x-display-pixel-height)))
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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 (vector xcb:Atom:_NET_WM_STATE_FULLSCREEN)))
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(xcb:flush exwm--connection)
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(cl-assert (not exwm--fullscreen))
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(setq exwm--fullscreen t)
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(exwm-input-release-keyboard)))
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(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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(with-current-buffer (if id (exwm--id->buffer id) (window-buffer))
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;; Restore the floating frame if the client is floating
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(when exwm--floating-frame
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(xcb:+request exwm--connection
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(make-instance 'xcb:ConfigureWindow
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:window (frame-parameter exwm--floating-frame
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'exwm-outer-id)
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:value-mask (logior xcb:ConfigWindow:X
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xcb:ConfigWindow:Y
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xcb:ConfigWindow:Width
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xcb:ConfigWindow:Height)
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:x (elt exwm--floating-frame-geometry 0)
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:y (elt exwm--floating-frame-geometry 1)
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:width (elt exwm--floating-frame-geometry 2)
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:height (elt exwm--floating-frame-geometry 3))))
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(exwm-layout--show exwm--id)
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(xcb:+request exwm--connection
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(make-instance 'xcb:ewmh:set-_NET_WM_STATE :window exwm--id :data []))
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(xcb:flush exwm--connection)
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(cl-assert exwm--fullscreen)
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(setq exwm--fullscreen nil)
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(exwm-input-grab-keyboard)))
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(defun exwm-layout--refresh ()
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"Refresh layout."
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(let ((frame (selected-frame))
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(placeholder (get-buffer "*scratch*"))
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windows)
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(if (not (memq frame exwm-workspace--list))
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(if (frame-parameter frame 'exwm-window-id)
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;; Refresh a floating frame
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(progn
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(cl-assert (eq major-mode 'exwm-mode))
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(let ((window (frame-first-window frame)))
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(with-current-buffer (window-buffer window)
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(exwm--log "Refresh floating window #x%x" exwm--id)
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(exwm-layout--show exwm--id window))))
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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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(unless placeholder ;create the *scratch* buffer if it's killed
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(setq placeholder (get-buffer-create "*scratch*"))
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(set-buffer-major-mode placeholder))
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(setq windows (window-list frame 0)) ;exclude minibuffer
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(dolist (window windows)
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(with-current-buffer (window-buffer window)
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(when (eq major-mode 'exwm-mode)
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(set-window-buffer window placeholder)))))
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;; Refresh the whole workspace
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;; Workspaces other than the active one can also be refreshed (RandR)
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(exwm--log "Refresh workspace %s" frame)
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(unless placeholder ;create the *scratch* buffer if it's killed
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(setq placeholder (get-buffer-create "*scratch*"))
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(set-buffer-major-mode placeholder))
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(dolist (pair exwm--id-buffer-alist)
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(with-current-buffer (cdr pair)
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;; Exclude windows on other workspaces and floating frames
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(when (and (eq frame exwm--frame) (not exwm--floating-frame))
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(setq windows (get-buffer-window-list (current-buffer) 0))
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(if (not windows)
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(exwm-layout--hide exwm--id)
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(exwm-layout--show exwm--id (car windows))
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(dolist (i (cdr windows))
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(set-window-buffer i placeholder)))))))))
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(defun exwm-layout--on-minibuffer-setup ()
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"Refresh layout when minibuffer grows."
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(run-with-idle-timer 0.01 nil ;FIXME
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(lambda ()
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(when (and (< 1 (window-height (minibuffer-window)))
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(not (and (eq major-mode 'exwm-mode)
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exwm--floating-frame)))
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(exwm-layout--refresh)))))
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(defun exwm-layout--init ()
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"Initialize layout module."
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;; Auto refresh layout
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(add-hook 'window-configuration-change-hook 'exwm-layout--refresh)
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;; Refresh when minibuffer grows
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(add-hook 'minibuffer-setup-hook 'exwm-layout--on-minibuffer-setup t))
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(provide 'exwm-layout)
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;;; exwm-layout.el ends here
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