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7823eb988c
; This is an attempt to make (managed) X windows container-less, i.e. direct children of the root window. This is mainly to make EXWM compatible with third-party compositors. Other issues like wrong absolute position should also get resolved by the way. The workspace containers ("virtual roots") are also removed. However Emacs frames are still wrapped in containers to avoid unexpected stack reordering.
* exwm-cm.el: Make this module obsolete as EXWM supports third-party compositors now.
* exwm-core.el (exwm--container):
* exwm-floating.el (exwm-floating--set-floating)
(exwm-floating--unset-floating, exwm-floating-hide)
(exwm-floating--start-moveresize, exwm-floating--stop-moveresize)
(exwm-floating--do-moveresize, exwm-floating-move):
* exwm-input.el (exwm-input--update-focus):
* exwm-layout.el (exwm-layout--show, exwm-layout--hide)
(exwm-layout-set-fullscreen, exwm-layout-unset-fullscreen):
* exwm-manage.el (exwm-manage--manage-window, exwm-manage--unmanage-window)
(exwm-manage--kill-buffer-query-function, exwm-manage--kill-client):
* exwm-workspace.el (exwm-workspace--set-fullscreen, exwm-workspace-switch)
(exwm-workspace-move-window, exwm-workspace--add-frame-as-workspace)
(exwm-workspace--remove-frame-as-workspace): Make adaptions for container-less X windows.
* exwm-workspace.el (exwm-workspace--update-ewmh-props):
* exwm.el (exwm--init-icccm-ewmh, exwm--exit-icccm-ewmh): No longer use virtual roots.
* exwm-input.el (exwm-input--on-workspace-list-change)
(exwm-input--update-global-prefix-keys, exwm-input--init, exwm-input--exit): From now on global key bindings are grabbed on the root window so it's no long required to re-grab them each time the workspace list changes. As a result `exwm-input--on-workspace-list-change' and its corresponding references are discarded. It remains to be seen if this change will raise input focus issues.
* exwm-manage.el (exwm-manage--manage-window): Explicitly set the workspace for newly managed X windows.
* exwm-floating.el (exwm-floating--set-floating): Avoid implicit reference to the current workspace.
* exwm-core.el (exwm--set-geometry): New function for setting the geometry of an X window.
* exwm-layout.el (exwm-layout--resize-container): Replaced by `exwm-layout--resize-container'.
* exwm-core.el (exwm--guide-window): New global variable recording the guide X window.
* exwm.el (exwm--init-icccm-ewmh): Set it.
* exwm-input.el (exwm-input--post-init): New function containing staffs for initialization but should better get called after the event loop starts.
* exwm.el (exwm-init): Use it.
813 lines
35 KiB
EmacsLisp
813 lines
35 KiB
EmacsLisp
;;; exwm-input.el --- Input Module for EXWM -*- lexical-binding: t -*-
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;; Copyright (C) 2015-2018 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 deals with key/mouse matters, including:
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;; + Input focus,
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;; + Key/Button event handling,
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;; + Key events filtering and simulation.
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;; Todo:
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;; + Pointer simulation mode (e.g. 'C-c 1'/'C-c 2' for single/double click,
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;; move with arrow keys).
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;; + Simulation keys to mimic Emacs key bindings for text edit (redo, select,
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;; cancel, clear, etc). Some of them are not present on common keyboard
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;; (keycode = 0). May need to use XKB extension.
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;;; Code:
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(require 'xcb-keysyms)
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(require 'exwm-core)
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(defvar exwm-input-move-event 's-down-mouse-1
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"Emacs event to start moving a window.")
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(defvar exwm-input-resize-event 's-down-mouse-3
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"Emacs event to start resizing a window.")
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(defvar exwm-input--timestamp-window nil)
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(defvar exwm-input--timestamp-atom nil)
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(defvar exwm-input--timestamp-callback nil)
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(defvar exwm-workspace--current)
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(defvar exwm-workspace--switch-history-outdated)
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(defvar exwm-workspace-current-index)
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(defvar exwm-workspace--minibuffer)
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(defvar exwm-workspace--list)
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(defvar exwm-input--global-keys nil "Global key bindings.")
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(defvar exwm-input--global-prefix-keys nil
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"List of prefix keys of global key bindings.")
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(defvar exwm-input-prefix-keys
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'(?\C-c ?\C-x ?\C-u ?\C-h ?\M-x ?\M-` ?\M-& ?\M-:)
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"List of prefix keys EXWM should forward to Emacs when in line-mode.")
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(defvar exwm-input--simulation-keys nil "Simulation keys in line-mode.")
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(defvar exwm-input--simulation-prefix-keys nil
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"List of prefix keys of simulation keys in line-mode.")
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(declare-function exwm-layout--show "exwm-layout.el" (id &optional window))
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(defun exwm-input--set-focus (id)
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"Set input focus to window ID in a proper way."
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(when (exwm--id->buffer id)
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(with-current-buffer (exwm--id->buffer id)
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(cond
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((and (not exwm--hints-input)
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(memq xcb:Atom:WM_TAKE_FOCUS exwm--protocols))
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(when (= (frame-parameter nil 'exwm-id)
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(slot-value (xcb:+request-unchecked+reply exwm--connection
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(make-instance 'xcb:GetInputFocus))
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'focus))
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(exwm--log "Focus on #x%x with WM_TAKE_FOCUS" id)
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(exwm-input--update-timestamp
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(lambda (timestamp id)
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(let ((event (make-instance 'xcb:icccm:WM_TAKE_FOCUS
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:window id
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:time timestamp)))
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(setq event (xcb:marshal event exwm--connection))
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(xcb:+request exwm--connection
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(make-instance 'xcb:icccm:SendEvent
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:destination id
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:event event))
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(exwm-input--set-active-window id)
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(xcb:flush exwm--connection)))
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id)))
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(t
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(exwm--log "Focus on #x%x with SetInputFocus" id)
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(xcb:+request exwm--connection
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(make-instance 'xcb:SetInputFocus
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:revert-to xcb:InputFocus:Parent
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:focus id
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:time xcb:Time:CurrentTime))
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(exwm-input--set-active-window id)
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(xcb:flush exwm--connection))))))
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(defun exwm-input--update-timestamp (callback &rest args)
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"Fetch the latest timestamp from the server and feed it to CALLBACK.
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ARGS are additional arguments to CALLBACK."
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(setq exwm-input--timestamp-callback (cons callback args))
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(xcb:+request exwm--connection
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(make-instance 'xcb:ChangeProperty
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:mode xcb:PropMode:Replace
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:window exwm-input--timestamp-window
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:property exwm-input--timestamp-atom
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:type xcb:Atom:CARDINAL
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:format 32
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:data-len 0
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:data nil))
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(xcb:flush exwm--connection))
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(defun exwm-input--on-PropertyNotify (data _synthetic)
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"Handle PropertyNotify events."
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(when exwm-input--timestamp-callback
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(let ((obj (make-instance 'xcb:PropertyNotify)))
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(xcb:unmarshal obj data)
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(when (= exwm-input--timestamp-window
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(slot-value obj 'window))
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(apply (car exwm-input--timestamp-callback)
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(slot-value obj 'time)
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(cdr exwm-input--timestamp-callback))
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(setq exwm-input--timestamp-callback nil)))))
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(defun exwm-input--on-FocusIn (data _synthetic)
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"Handle FocusIn events."
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(let ((obj (make-instance 'xcb:FocusIn)))
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(xcb:unmarshal obj data)
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(with-slots (mode) obj
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;; Revert input focus back to Emacs frame / X window when it's set on
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;; the root window or some workspace container.
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(when (eq mode xcb:NotifyMode:Normal)
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(x-focus-frame (selected-frame))
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(select-window (selected-window))))))
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(defun exwm-input--on-EnterNotify (data _synthetic)
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"Handle EnterNotify events."
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(let ((evt (make-instance 'xcb:EnterNotify))
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buffer window frame frame-xid edges fake-evt)
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(xcb:unmarshal evt data)
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(with-slots (time root event root-x root-y event-x event-y state) evt
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(setq buffer (exwm--id->buffer event)
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window (get-buffer-window buffer t))
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(when (and buffer window (not (eq window (selected-window))))
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(setq frame (window-frame window)
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frame-xid (frame-parameter frame 'exwm-id))
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(unless (eq frame exwm-workspace--current)
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(if (exwm-workspace--workspace-p frame)
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;; The X window is on another workspace.
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(exwm-workspace-switch frame)
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(with-current-buffer buffer
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(when (and (eq major-mode 'exwm-mode)
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(not (eq exwm--frame exwm-workspace--current)))
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;; The floating X window is on another workspace.
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(exwm-workspace-switch exwm--frame)))))
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;; Send a fake MotionNotify event to Emacs.
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(setq edges (window-inside-pixel-edges window)
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fake-evt (make-instance 'xcb:MotionNotify
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:detail 0
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:time time
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:root root
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:event frame-xid
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:child xcb:Window:None
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:root-x root-x
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:root-y root-y
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:event-x (+ event-x (elt edges 0))
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:event-y (+ event-y (elt edges 1))
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:state state
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:same-screen 1))
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(xcb:+request exwm--connection
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(make-instance 'xcb:SendEvent
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:propagate 0
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:destination frame-xid
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:event-mask xcb:EventMask:NoEvent
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:event (xcb:marshal fake-evt exwm--connection)))
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(xcb:flush exwm--connection)))))
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(defun exwm-input--on-keysyms-update ()
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(let ((exwm-input--global-prefix-keys nil))
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(exwm-input--update-global-prefix-keys)))
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(declare-function exwm-workspace--client-p "exwm-workspace.el"
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(&optional frame))
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(defvar exwm-input--update-focus-window nil "The (Emacs) window to be focused.
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This value should always be overwritten.")
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(defun exwm-input--on-buffer-list-update ()
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"Run in `buffer-list-update-hook' to track input focus."
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(when (and (not (eq this-command #'handle-switch-frame))
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(not (exwm-workspace--client-p))
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;; The following conditions filter out events relating to temp
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;; buffers.
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(eq (current-buffer) (window-buffer))
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(not (string-prefix-p " *temp*"
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(buffer-name (car (last (buffer-list)))))))
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(redirect-frame-focus (selected-frame) nil)
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(setq exwm-input--update-focus-window (selected-window))
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(exwm-input--update-focus-defer)))
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;; Input focus update requests should be accumulated for a short time
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;; interval so that only the last one need to be processed. This not
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;; improves the overall performance, but avoids the problem of input
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;; focus loop, which is a result of the interaction with Emacs frames.
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;;
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;; FIXME: The time interval is hard to decide and perhaps machine-dependent.
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;; A value too small can cause redundant updates of input focus,
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;; and even worse, dead loops. OTOH a large value would bring
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;; laggy experience.
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(defconst exwm-input--update-focus-interval 0.01
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"Time interval (in seconds) for accumulating input focus update requests.")
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(defvar exwm-input--update-focus-lock nil
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"Lock for solving input focus update contention.")
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(defvar exwm-input--update-focus-defer-timer nil "Timer for polling the lock.")
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(defvar exwm-input--update-focus-timer nil
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"Timer for deferring the update of input focus.")
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(defun exwm-input--update-focus-defer ()
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"Defer updating input focus."
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(when exwm-input--update-focus-defer-timer
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(cancel-timer exwm-input--update-focus-defer-timer))
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(if exwm-input--update-focus-lock
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(setq exwm-input--update-focus-defer-timer
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(exwm--defer 0 #'exwm-input--update-focus-defer))
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(setq exwm-input--update-focus-defer-timer nil)
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(when exwm-input--update-focus-timer
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(cancel-timer exwm-input--update-focus-timer))
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(setq exwm-input--update-focus-timer
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;; Attempt to accumulate successive events close enough.
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(run-with-timer exwm-input--update-focus-interval
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nil
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#'exwm-input--update-focus-commit
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exwm-input--update-focus-window))))
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(declare-function exwm-layout--iconic-state-p "exwm-layout.el" (&optional id))
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(declare-function exwm-workspace--minibuffer-own-frame-p "exwm-workspace.el")
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(declare-function exwm-workspace-switch "exwm-workspace.el"
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(frame-or-index &optional force))
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(declare-function exwm-workspace--workspace-p "exwm-workspace.el" (workspace))
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(defun exwm-input--update-focus-commit (window)
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"Commit updating input focus."
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(setq exwm-input--update-focus-lock t)
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(unwind-protect
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(exwm-input--update-focus window)
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(setq exwm-input--update-focus-lock nil)))
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(defun exwm-input--update-focus (window)
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"Update input focus."
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(when (window-live-p window)
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(with-current-buffer (window-buffer window)
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(if (eq major-mode 'exwm-mode)
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(if (not (eq exwm--frame exwm-workspace--current))
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(progn
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(set-frame-parameter exwm--frame 'exwm-selected-window window)
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(exwm--defer 0 #'exwm-workspace-switch exwm--frame))
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(exwm--log "Set focus on #x%x" exwm--id)
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(when exwm--floating-frame
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;; Adjust stacking orders of the floating 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 xcb:ConfigWindow:StackMode
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:stack-mode xcb:StackMode:TopIf))
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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-container)
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:value-mask (logior
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xcb:ConfigWindow:Sibling
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xcb:ConfigWindow:StackMode)
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:sibling exwm--id
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:stack-mode xcb:StackMode:Below))
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;; This floating X window might be hide by `exwm-floating-hide'.
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(when (exwm-layout--iconic-state-p)
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(exwm-layout--show exwm--id window))
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(xcb:flush exwm--connection))
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(exwm-input--set-focus exwm--id))
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(when (eq (selected-window) window)
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(exwm--log "Focus on %s" window)
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(if (and (exwm-workspace--workspace-p (selected-frame))
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(not (eq (selected-frame) exwm-workspace--current)))
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;; The focus is on another workspace (e.g. it got clicked)
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;; so switch to it.
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(progn
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(set-frame-parameter (selected-frame) 'exwm-selected-window
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window)
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(exwm--defer 0 #'exwm-workspace-switch (selected-frame)))
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;; The focus is still on the current workspace.
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(if (not (and (exwm-workspace--minibuffer-own-frame-p)
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(minibufferp)))
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(x-focus-frame (window-frame window))
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;; X input focus should be set on the previously selected
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;; frame.
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(x-focus-frame (window-frame (minibuffer-selected-window))))
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(exwm-input--set-active-window)
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(xcb:flush exwm--connection)))))))
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(defun exwm-input--on-minibuffer-setup ()
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"Run in `minibuffer-setup-hook' to set input focus."
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(unless (exwm-workspace--client-p)
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;; Set input focus on the Emacs frame
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(x-focus-frame (window-frame (minibuffer-selected-window)))))
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(defun exwm-input--set-active-window (&optional id)
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"Set _NET_ACTIVE_WINDOW."
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(xcb:+request exwm--connection
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(make-instance 'xcb:ewmh:set-_NET_ACTIVE_WINDOW
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:window exwm--root
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:data (or id xcb:Window:None))))
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(declare-function exwm-floating--start-moveresize "exwm-floating.el"
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(id &optional type))
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(declare-function exwm-workspace--position "exwm-workspace.el" (frame))
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(defun exwm-input--on-ButtonPress (data _synthetic)
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"Handle ButtonPress event."
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(let ((obj (make-instance 'xcb:ButtonPress))
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(mode xcb:Allow:SyncPointer)
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button-event window buffer frame)
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(xcb:unmarshal obj data)
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(with-slots (detail time event state) obj
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(setq button-event (xcb:keysyms:keysym->event exwm--connection
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detail state)
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window (get-buffer-window (exwm--id->buffer event) t)
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buffer (window-buffer window))
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(cond ((and (eq button-event exwm-input-move-event)
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;; Either an undecorated or a floating X window.
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(with-current-buffer buffer
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(or (not (eq major-mode 'exwm-mode))
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exwm--floating-frame)))
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;; Move
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(exwm-floating--start-moveresize
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event xcb:ewmh:_NET_WM_MOVERESIZE_MOVE))
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((and (eq button-event exwm-input-resize-event)
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(with-current-buffer buffer
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(or (not (eq major-mode 'exwm-mode))
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exwm--floating-frame)))
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;; Resize
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(exwm-floating--start-moveresize event))
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(t
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;; Click to focus
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(unless (eq window (selected-window))
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(setq frame (window-frame window))
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(unless (eq frame exwm-workspace--current)
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(if (exwm-workspace--workspace-p frame)
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;; The X window is on another workspace
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(exwm-workspace-switch frame)
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(with-current-buffer buffer
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(when (and (eq major-mode 'exwm-mode)
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(not (eq exwm--frame
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exwm-workspace--current)))
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;; The floating X window is on another workspace
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(exwm-workspace-switch exwm--frame)))))
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;; It has been reported that the `window' may have be deleted
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(if (window-live-p window)
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(select-window window)
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(setq window
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(get-buffer-window (exwm--id->buffer event) t))
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(when window (select-window window))))
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;; The event should be replayed
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(setq mode xcb:Allow:ReplayPointer))))
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(xcb:+request exwm--connection
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(make-instance 'xcb:AllowEvents :mode mode :time xcb:Time:CurrentTime))
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(xcb:flush exwm--connection)))
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(defun exwm-input--on-KeyPress (data _synthetic)
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"Handle KeyPress event."
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(let ((obj (make-instance 'xcb:KeyPress)))
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(xcb:unmarshal obj data)
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(if (eq major-mode 'exwm-mode)
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(funcall exwm--on-KeyPress obj data)
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(exwm-input--on-KeyPress-char-mode obj))))
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(defun exwm-input--update-global-prefix-keys ()
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"Update `exwm-input--global-prefix-keys'."
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(when exwm--connection
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(let ((original exwm-input--global-prefix-keys)
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keysym keycode grab-key)
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(setq exwm-input--global-prefix-keys nil)
|
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(dolist (i exwm-input--global-keys)
|
||
(cl-pushnew (elt i 0) exwm-input--global-prefix-keys))
|
||
;; Stop here if the global prefix keys are update-to-date and
|
||
;; there's no new workspace.
|
||
(unless (equal original exwm-input--global-prefix-keys)
|
||
(setq grab-key (make-instance 'xcb:GrabKey
|
||
:owner-events 0
|
||
:grab-window exwm--root
|
||
:modifiers nil
|
||
:key nil
|
||
:pointer-mode xcb:GrabMode:Async
|
||
:keyboard-mode xcb:GrabMode:Async))
|
||
(dolist (k exwm-input--global-prefix-keys)
|
||
(setq keysym (xcb:keysyms:event->keysym exwm--connection k)
|
||
keycode (xcb:keysyms:keysym->keycode exwm--connection
|
||
(car keysym)))
|
||
(setf (slot-value grab-key 'modifiers) (cdr keysym)
|
||
(slot-value grab-key 'key) keycode)
|
||
(when (or (= 0 keycode)
|
||
(xcb:+request-checked+request-check exwm--connection
|
||
grab-key)
|
||
;; Also grab this key with num-lock mask set.
|
||
(when (/= 0 xcb:keysyms:num-lock-mask)
|
||
(setf (slot-value grab-key 'modifiers)
|
||
(logior (cdr keysym)
|
||
xcb:keysyms:num-lock-mask))
|
||
(xcb:+request-checked+request-check exwm--connection
|
||
grab-key)))
|
||
(user-error "[EXWM] Failed to grab key: %s"
|
||
(single-key-description k))))))))
|
||
|
||
;;;###autoload
|
||
(defun exwm-input-set-key (key command)
|
||
"Set a global key binding."
|
||
(interactive "KSet key globally: \nCSet key %s to command: ")
|
||
(global-set-key key command)
|
||
(cl-pushnew key exwm-input--global-keys)
|
||
(when (called-interactively-p 'any)
|
||
(exwm-input--update-global-prefix-keys)))
|
||
|
||
;; Putting (t . EVENT) into `unread-command-events' does not really work
|
||
;; as documented for Emacs < 27.
|
||
(eval-and-compile
|
||
(if (< emacs-major-version 27)
|
||
(defsubst exwm-input--unread-event (event)
|
||
(setq unread-command-events
|
||
(append unread-command-events (list event))))
|
||
(defsubst exwm-input--unread-event (event)
|
||
(setq unread-command-events
|
||
(append unread-command-events `((t . ,event)))))))
|
||
|
||
(defvar exwm-input-command-whitelist nil
|
||
"A list of commands that when active all keys should be forwarded to Emacs.")
|
||
(make-obsolete-variable 'exwm-input-command-whitelist
|
||
"This variable can be safely removed." "25.1")
|
||
|
||
(defvar exwm-input--during-command nil
|
||
"Indicate whether between `pre-command-hook' and `post-command-hook'.")
|
||
|
||
(defvar exwm-input-line-mode-passthrough nil
|
||
"Non-nil makes 'line-mode' forwards all events to Emacs.")
|
||
|
||
(defvar exwm-input--line-mode-cache nil "Cache for incomplete key sequence.")
|
||
|
||
(defvar exwm-input--temp-line-mode nil
|
||
"Non-nil indicates it's in temporary line-mode for char-mode.")
|
||
|
||
(cl-defun exwm-input--translate (key)
|
||
(let (translation)
|
||
(dolist (map (list input-decode-map
|
||
local-function-key-map
|
||
key-translation-map))
|
||
(setq translation (lookup-key map key))
|
||
(if (functionp translation)
|
||
(cl-return-from exwm-input--translate (funcall translation nil))
|
||
(when (vectorp translation)
|
||
(cl-return-from exwm-input--translate translation)))))
|
||
key)
|
||
|
||
(defun exwm-input--cache-event (event)
|
||
"Cache EVENT."
|
||
(setq exwm-input--line-mode-cache
|
||
(vconcat exwm-input--line-mode-cache (vector event)))
|
||
;; Attempt to translate this key sequence.
|
||
(setq exwm-input--line-mode-cache
|
||
(exwm-input--translate exwm-input--line-mode-cache))
|
||
;; When the key sequence is complete.
|
||
(unless (keymapp (key-binding exwm-input--line-mode-cache))
|
||
(setq exwm-input--line-mode-cache nil)
|
||
(when exwm-input--temp-line-mode
|
||
(setq exwm-input--temp-line-mode nil)
|
||
(exwm-input--release-keyboard)))
|
||
(exwm-input--unread-event event))
|
||
|
||
(defun exwm-input--on-KeyPress-line-mode (key-press raw-data)
|
||
"Parse X KeyPress event to Emacs key event and then feed the command loop."
|
||
(with-slots (detail state) key-press
|
||
(let ((keysym (xcb:keysyms:keycode->keysym exwm--connection detail state))
|
||
event mode)
|
||
(when (and (/= 0 (car keysym))
|
||
(setq event (xcb:keysyms:keysym->event
|
||
exwm--connection (car keysym)
|
||
(logand state (lognot (cdr keysym)))))
|
||
(or exwm-input-line-mode-passthrough
|
||
exwm-input--during-command
|
||
;; Forward the event when there is an incomplete key
|
||
;; sequence or when the minibuffer is active.
|
||
exwm-input--line-mode-cache
|
||
(eq (active-minibuffer-window) (selected-window))
|
||
;;
|
||
(memq event exwm-input--global-prefix-keys)
|
||
(memq event exwm-input-prefix-keys)
|
||
(memq event exwm-input--simulation-prefix-keys)))
|
||
(setq mode xcb:Allow:AsyncKeyboard)
|
||
(exwm-input--cache-event event))
|
||
(unless mode
|
||
(if (= 0 (logand #x6000 state)) ;Check the 13~14 bits.
|
||
;; Not an XKB state; just replay it.
|
||
(setq mode xcb:Allow:ReplayKeyboard)
|
||
;; An XKB state; sent it with SendEvent.
|
||
;; FIXME: Can this also be replayed?
|
||
;; FIXME: KeyRelease events are lost.
|
||
(setq mode xcb:Allow:AsyncKeyboard)
|
||
(xcb:+request exwm--connection
|
||
(make-instance 'xcb:SendEvent
|
||
:propagate 0
|
||
:destination (slot-value key-press 'event)
|
||
:event-mask xcb:EventMask:NoEvent
|
||
:event raw-data)))
|
||
;; Make Emacs aware of this event when defining keyboard macros.
|
||
(when (and defining-kbd-macro event)
|
||
(set-transient-map '(keymap (t . (lambda () (interactive)))))
|
||
(exwm-input--unread-event event)))
|
||
(xcb:+request exwm--connection
|
||
(make-instance 'xcb:AllowEvents
|
||
:mode mode
|
||
:time xcb:Time:CurrentTime))
|
||
(xcb:flush exwm--connection))))
|
||
|
||
(defun exwm-input--on-KeyPress-char-mode (key-press &optional _raw-data)
|
||
"Handle KeyPress event in char-mode."
|
||
(with-slots (detail state) key-press
|
||
(let ((keysym (xcb:keysyms:keycode->keysym exwm--connection detail state))
|
||
event)
|
||
(when (and (/= 0 (car keysym))
|
||
(setq event (xcb:keysyms:keysym->event
|
||
exwm--connection (car keysym)
|
||
(logand state (lognot (cdr keysym))))))
|
||
(if (not (eq major-mode 'exwm-mode))
|
||
(exwm-input--unread-event event)
|
||
;; Grab keyboard temporarily.
|
||
(setq exwm-input--temp-line-mode t)
|
||
(exwm-input--grab-keyboard)
|
||
(exwm-input--cache-event event)))))
|
||
(xcb:+request exwm--connection
|
||
(make-instance 'xcb:AllowEvents
|
||
:mode xcb:Allow:AsyncKeyboard
|
||
:time xcb:Time:CurrentTime))
|
||
(xcb:flush exwm--connection))
|
||
|
||
(defun exwm-input--update-mode-line (id)
|
||
"Update the propertized `mode-line-process' for window ID."
|
||
(let (help-echo cmd mode)
|
||
(cl-case exwm--on-KeyPress
|
||
((exwm-input--on-KeyPress-line-mode)
|
||
(setq mode "line"
|
||
help-echo "mouse-1: Switch to char-mode"
|
||
cmd `(lambda ()
|
||
(interactive)
|
||
(exwm-input-release-keyboard ,id))))
|
||
((exwm-input--on-KeyPress-char-mode)
|
||
(setq mode "char"
|
||
help-echo "mouse-1: Switch to line-mode"
|
||
cmd `(lambda ()
|
||
(interactive)
|
||
(exwm-input-grab-keyboard ,id)))))
|
||
(with-current-buffer (exwm--id->buffer id)
|
||
(setq mode-line-process
|
||
`(": "
|
||
(:propertize ,mode
|
||
help-echo ,help-echo
|
||
mouse-face mode-line-highlight
|
||
local-map
|
||
(keymap
|
||
(mode-line
|
||
keymap
|
||
(down-mouse-1 . ,cmd)))))))))
|
||
|
||
(defun exwm-input--grab-keyboard (&optional id)
|
||
"Grab all key events on window ID."
|
||
(unless id (setq id (exwm--buffer->id (window-buffer))))
|
||
(when id
|
||
(when (xcb:+request-checked+request-check exwm--connection
|
||
(make-instance 'xcb:GrabKey
|
||
:owner-events 0
|
||
:grab-window id
|
||
:modifiers xcb:ModMask:Any
|
||
:key xcb:Grab:Any
|
||
:pointer-mode xcb:GrabMode:Async
|
||
:keyboard-mode xcb:GrabMode:Sync))
|
||
(exwm--log "Failed to grab keyboard for #x%x" id))
|
||
(with-current-buffer (exwm--id->buffer id)
|
||
(setq exwm--on-KeyPress #'exwm-input--on-KeyPress-line-mode))))
|
||
|
||
(defun exwm-input--release-keyboard (&optional id)
|
||
"Ungrab all key events on window ID."
|
||
(unless id (setq id (exwm--buffer->id (window-buffer))))
|
||
(when id
|
||
(when (xcb:+request-checked+request-check exwm--connection
|
||
(make-instance 'xcb:UngrabKey
|
||
:key xcb:Grab:Any
|
||
:grab-window id
|
||
:modifiers xcb:ModMask:Any))
|
||
(exwm--log "Failed to release keyboard for #x%x" id))
|
||
(with-current-buffer (exwm--id->buffer id)
|
||
(setq exwm--on-KeyPress #'exwm-input--on-KeyPress-char-mode))))
|
||
|
||
;;;###autoload
|
||
(defun exwm-input-grab-keyboard (&optional id)
|
||
"Switch to line-mode."
|
||
(interactive (list (exwm--buffer->id (window-buffer))))
|
||
(when id
|
||
(with-current-buffer (exwm--id->buffer id)
|
||
(exwm-input--grab-keyboard id)
|
||
(setq exwm--keyboard-grabbed t)
|
||
(exwm-input--update-mode-line id)
|
||
(force-mode-line-update))))
|
||
|
||
;;;###autoload
|
||
(defun exwm-input-release-keyboard (&optional id)
|
||
"Switch to char-mode."
|
||
(interactive (list (exwm--buffer->id (window-buffer))))
|
||
(when id
|
||
(with-current-buffer (exwm--id->buffer id)
|
||
(exwm-input--release-keyboard id)
|
||
(setq exwm--keyboard-grabbed nil)
|
||
(exwm-input--update-mode-line id)
|
||
(force-mode-line-update))))
|
||
|
||
;;;###autoload
|
||
(defun exwm-input-toggle-keyboard (&optional id)
|
||
"Toggle between 'line-mode' and 'char-mode'."
|
||
(interactive (list (exwm--buffer->id (window-buffer))))
|
||
(when id
|
||
(with-current-buffer (exwm--id->buffer id)
|
||
(if exwm--keyboard-grabbed
|
||
(exwm-input-release-keyboard id)
|
||
(exwm-reset)))))
|
||
|
||
(defun exwm-input--fake-key (event)
|
||
"Fake a key event equivalent to Emacs event EVENT."
|
||
(let* ((keysym (xcb:keysyms:event->keysym exwm--connection event))
|
||
keycode id)
|
||
(when (= 0 (car keysym))
|
||
(user-error "[EXWM] Invalid key: %s" (single-key-description event)))
|
||
(setq keycode (xcb:keysyms:keysym->keycode exwm--connection
|
||
(car keysym)))
|
||
(when (/= 0 keycode)
|
||
(setq id (exwm--buffer->id (window-buffer (selected-window))))
|
||
(dolist (class '(xcb:KeyPress xcb:KeyRelease))
|
||
(xcb:+request exwm--connection
|
||
(make-instance 'xcb:SendEvent
|
||
:propagate 0 :destination id
|
||
:event-mask xcb:EventMask:NoEvent
|
||
:event (xcb:marshal
|
||
(make-instance class
|
||
:detail keycode
|
||
:time xcb:Time:CurrentTime
|
||
:root exwm--root :event id
|
||
:child 0
|
||
:root-x 0 :root-y 0
|
||
:event-x 0 :event-y 0
|
||
:state (cdr keysym)
|
||
:same-screen 1)
|
||
exwm--connection)))))
|
||
(xcb:flush exwm--connection)))
|
||
|
||
;;;###autoload
|
||
(defun exwm-input-send-next-key (times)
|
||
"Send next key to client window."
|
||
(interactive "p")
|
||
(when (> times 12) (setq times 12))
|
||
(let (key keys)
|
||
(dotimes (i times)
|
||
;; Skip events not from keyboard
|
||
(let ((exwm-input-line-mode-passthrough t))
|
||
(catch 'break
|
||
(while t
|
||
(setq key (read-key (format "Send key: %s (%d/%d)"
|
||
(key-description keys)
|
||
(1+ i) times)))
|
||
(unless (listp key) (throw 'break nil)))))
|
||
(setq keys (vconcat keys (vector key)))
|
||
(exwm-input--fake-key key))))
|
||
|
||
;; (defun exwm-input-send-last-key ()
|
||
;; (interactive)
|
||
;; (unless (listp last-input-event) ;not a key event
|
||
;; (exwm-input--fake-key last-input-event)))
|
||
|
||
(defvar exwm-input--local-simulation-keys nil
|
||
"Whether simulation keys are local.")
|
||
|
||
(defun exwm-input--update-simulation-prefix-keys ()
|
||
"Update the list of prefix keys of simulation keys."
|
||
(setq exwm-input--simulation-prefix-keys nil)
|
||
(dolist (i exwm-input--simulation-keys)
|
||
(if exwm-input--local-simulation-keys
|
||
(local-set-key (car i) #'exwm-input-send-simulation-key)
|
||
(define-key exwm-mode-map (car i) #'exwm-input-send-simulation-key))
|
||
(cl-pushnew (elt (car i) 0) exwm-input--simulation-prefix-keys)))
|
||
|
||
(defun exwm-input-set-simulation-keys (simulation-keys)
|
||
"Set simulation keys.
|
||
|
||
SIMULATION-KEYS is an alist of the form (original-key . simulated-key)."
|
||
(setq exwm-input--simulation-keys nil)
|
||
(dolist (i simulation-keys)
|
||
(cl-pushnew `(,(vconcat (car i)) . ,(cdr i)) exwm-input--simulation-keys))
|
||
(exwm-input--update-simulation-prefix-keys))
|
||
|
||
(defun exwm-input-set-local-simulation-keys (simulation-keys)
|
||
"Set buffer-local simulation keys.
|
||
|
||
Its usage is the same with `exwm-input-set-simulation-keys'."
|
||
(make-local-variable 'exwm-input--simulation-keys)
|
||
(make-local-variable 'exwm-input--simulation-prefix-keys)
|
||
(use-local-map (copy-keymap exwm-mode-map))
|
||
(let ((exwm-input--local-simulation-keys t))
|
||
(exwm-input-set-simulation-keys simulation-keys)))
|
||
|
||
;;;###autoload
|
||
(defun exwm-input-send-simulation-key (times)
|
||
"Fake a key event according to last input key sequence."
|
||
(interactive "p")
|
||
(let ((pair (assoc (this-single-command-keys) exwm-input--simulation-keys)))
|
||
(when pair
|
||
(setq pair (cdr pair))
|
||
(unless (listp pair)
|
||
(setq pair (list pair)))
|
||
(dotimes (_ times)
|
||
(dolist (j pair)
|
||
(exwm-input--fake-key j))))))
|
||
|
||
(defun exwm-input--on-pre-command ()
|
||
"Run in `pre-command-hook'."
|
||
(setq exwm-input--during-command t))
|
||
|
||
(defun exwm-input--on-post-command ()
|
||
"Run in `post-command-hook'."
|
||
(setq exwm-input--during-command nil))
|
||
|
||
(declare-function exwm-floating--stop-moveresize "exwm-floating.el"
|
||
(&rest _args))
|
||
(declare-function exwm-floating--do-moveresize "exwm-floating.el"
|
||
(data _synthetic))
|
||
|
||
(defun exwm-input--init ()
|
||
"Initialize the keyboard module."
|
||
;; Refresh keyboard mapping
|
||
(xcb:keysyms:init exwm--connection #'exwm-input--on-keysyms-update)
|
||
;; Create the X window and intern the atom used to fetch timestamp.
|
||
(setq exwm-input--timestamp-window (xcb:generate-id exwm--connection))
|
||
(xcb:+request exwm--connection
|
||
(make-instance 'xcb:CreateWindow
|
||
:depth 0
|
||
:wid exwm-input--timestamp-window
|
||
:parent exwm--root
|
||
:x -1
|
||
:y -1
|
||
:width 1
|
||
:height 1
|
||
:border-width 0
|
||
:class xcb:WindowClass:CopyFromParent
|
||
:visual 0
|
||
:value-mask xcb:CW:EventMask
|
||
:event-mask xcb:EventMask:PropertyChange))
|
||
(let ((atom "_TIME"))
|
||
(setq exwm-input--timestamp-atom
|
||
(slot-value (xcb:+request-unchecked+reply exwm--connection
|
||
(make-instance 'xcb:InternAtom
|
||
:only-if-exists 0
|
||
:name-len (length atom)
|
||
:name atom))
|
||
'atom)))
|
||
;; Attach event listeners
|
||
(xcb:+event exwm--connection 'xcb:PropertyNotify
|
||
#'exwm-input--on-PropertyNotify)
|
||
(xcb:+event exwm--connection 'xcb:KeyPress #'exwm-input--on-KeyPress)
|
||
(xcb:+event exwm--connection 'xcb:ButtonPress #'exwm-input--on-ButtonPress)
|
||
(xcb:+event exwm--connection 'xcb:ButtonRelease
|
||
#'exwm-floating--stop-moveresize)
|
||
(xcb:+event exwm--connection 'xcb:MotionNotify
|
||
#'exwm-floating--do-moveresize)
|
||
(xcb:+event exwm--connection 'xcb:FocusIn #'exwm-input--on-FocusIn)
|
||
(when mouse-autoselect-window
|
||
(xcb:+event exwm--connection 'xcb:EnterNotify
|
||
#'exwm-input--on-EnterNotify))
|
||
;; The input focus should be set on the frame when minibuffer is active.
|
||
(add-hook 'minibuffer-setup-hook #'exwm-input--on-minibuffer-setup)
|
||
;; Control `exwm-input--during-command'
|
||
(add-hook 'pre-command-hook #'exwm-input--on-pre-command)
|
||
(add-hook 'post-command-hook #'exwm-input--on-post-command)
|
||
;; Update focus when buffer list updates
|
||
(add-hook 'buffer-list-update-hook #'exwm-input--on-buffer-list-update))
|
||
|
||
(defun exwm-input--post-init ()
|
||
"The second stage in the initialization of the input module."
|
||
(exwm-input--update-global-prefix-keys))
|
||
|
||
(defun exwm-input--exit ()
|
||
"Exit the input module."
|
||
(remove-hook 'pre-command-hook #'exwm-input--on-pre-command)
|
||
(remove-hook 'post-command-hook #'exwm-input--on-post-command)
|
||
(remove-hook 'buffer-list-update-hook #'exwm-input--on-buffer-list-update)
|
||
(when exwm-input--update-focus-defer-timer
|
||
(cancel-timer exwm-input--update-focus-defer-timer))
|
||
(when exwm-input--update-focus-timer
|
||
(cancel-timer exwm-input--update-focus-timer)))
|
||
|
||
|
||
|
||
(provide 'exwm-input)
|
||
|
||
;;; exwm-input.el ends here
|