diff options
Diffstat (limited to 'exwm-layout.el')
| -rw-r--r-- | exwm-layout.el | 194 |
1 files changed, 194 insertions, 0 deletions
diff --git a/exwm-layout.el b/exwm-layout.el new file mode 100644 index 000000000000..7630b688e2b0 --- /dev/null +++ b/exwm-layout.el @@ -0,0 +1,194 @@ +;;; 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." + (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* ((edges (or (exwm--with-current-id id 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)) + (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 (x-display-pixel-width) + :height (x-display-pixel-height)))) + (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 (x-display-pixel-width) + :height (x-display-pixel-height))) + (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))) + +(defvar exwm-layout--window-configuration (current-window-configuration) + "Last saved window configuration, for avoiding unnecessary refreshes.") + +(defun exwm-layout--refresh () + "Refresh layout." + (unless (compare-window-configurations exwm-layout--window-configuration + (current-window-configuration)) + (setq exwm-layout--window-configuration (current-window-configuration)) + (let ((frame (selected-frame)) + windows) + (if (not (memq frame exwm-workspace--list)) + ;; Refresh a floating frame + (when (eq major-mode 'exwm-mode) + (with-current-buffer (window-buffer (frame-first-window frame)) + (exwm-layout--show exwm--id (frame-first-window frame)))) + ;; Refresh the whole workspace + (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 "*scratch*")))))))))) + +(defun exwm-layout--init () + "Initialize layout module." + ;; Auto refresh layout + (add-hook 'window-configuration-change-hook 'exwm-layout--refresh)) + + + +(provide 'exwm-layout) + +;;; exwm-layout.el ends here |