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https://github.com/ch11ng/exwm.git
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Support adding and removing workspaces
Frames created via `make-frame' are added to the workspace list; `delete-frame' removes them from the list. Floating frames, non-graphical frames, as well as those associated to different displays are ignored. When deleting a workspace, care is taken to reparent that all X clients another workspace. * exwm-workspace.el (exwm-workspace--add-frame-as-workspace) (exwm-workspace--remove-frame-as-workspace): New functions that intercept created and deleted frames and configure them as EXWM workspaces. (exwm-workspace--update-ewmh-props): New function to update desktop-related EWMH properties after workspace changes. (exwm-workspace--init): Use `exwm-workspace--add-frame-as-workspace' to create the initial workspaces.
This commit is contained in:
Adrián Medraño Calvo
parent
f4b8cc47c7
commit
0fbc725de1
1 changed files with 223 additions and 145 deletions
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@ -851,6 +851,149 @@ before it."
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(defvar exwm-workspace--timer nil "Timer used to track echo area changes.")
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(defun exwm-workspace--add-frame-as-workspace (frame)
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"Configure frame FRAME to be treated as a workspace."
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(cond
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((>= (exwm-workspace--count) exwm-workspace-number)
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(delete-frame frame)
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(user-error "[EXWM] Too many workspaces: maximum is %d" exwm-workspace-number))
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((exwm-workspace--workspace-p frame)
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(exwm--log "Frame `%s' is already a workspace" frame))
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((not (display-graphic-p frame))
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(exwm--log "Frame `%s' is not graphical" frame))
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((not (string-equal (slot-value exwm--connection 'display)
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(frame-parameter frame 'display)))
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(exwm--log "Frame `%s' is on a different DISPLAY (%S instead of %S)"
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frame
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(frame-parameter frame 'display)
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(slot-value exwm--connection 'display)))
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((frame-parameter frame 'exwm-floating)
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(exwm--log "Frame `%s' is floating" frame))
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(t
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(exwm--log "Adding frame `%s' as workspace" frame)
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(setq exwm-workspace--list (nconc exwm-workspace--list (list frame))
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exwm-workspace--current frame)
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(let ((outer-id (string-to-number (frame-parameter frame 'outer-window-id)))
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(container (xcb:generate-id exwm--connection))
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(workspace (xcb:generate-id exwm--connection)))
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;; Save window IDs
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(set-frame-parameter frame 'exwm-outer-id outer-id)
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(set-frame-parameter frame 'exwm-container container)
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(set-frame-parameter frame 'exwm-workspace workspace)
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;; Use same RandR output and geometry as previous workspace.
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(let ((prev-workspace (selected-frame)))
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(dolist (param '(exwm-randr-output
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exwm-geometry))
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(set-frame-parameter frame param
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(frame-parameter prev-workspace param))))
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(xcb:+request exwm--connection
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(make-instance 'xcb:CreateWindow
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:depth 0 :wid workspace :parent exwm--root
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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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:border-width 0 :class xcb:WindowClass:CopyFromParent
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:visual 0 ;CopyFromParent
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:value-mask (logior xcb:CW:OverrideRedirect
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xcb:CW:EventMask)
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:override-redirect 1
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:event-mask xcb:EventMask:SubstructureRedirect))
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(xcb:+request exwm--connection
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(make-instance 'xcb:CreateWindow
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:depth 0 :wid container :parent workspace
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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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:border-width 0 :class xcb:WindowClass:CopyFromParent
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:visual 0 ;CopyFromParent
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:value-mask xcb:CW:OverrideRedirect
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:override-redirect 1))
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(exwm--debug
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(xcb:+request exwm--connection
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(make-instance 'xcb:ewmh:set-_NET_WM_NAME
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:window workspace
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:data
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(format "EXWM workspace %d"
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(exwm-workspace--position frame))))
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(xcb:+request exwm--connection
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(make-instance 'xcb:ewmh:set-_NET_WM_NAME
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:window container
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:data
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(format "EXWM workspace %d frame container"
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(exwm-workspace--position frame)))))
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(xcb:+request exwm--connection
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(make-instance 'xcb:ReparentWindow
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:window outer-id :parent container :x 0 :y 0))
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(xcb:+request exwm--connection
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(make-instance 'xcb:MapWindow :window container))
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(xcb:+request exwm--connection
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(make-instance 'xcb:MapWindow :window workspace)))
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(xcb:flush exwm--connection)
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;; Delay making the workspace fullscreen until Emacs becomes idle
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(run-with-idle-timer 0 nil
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`(lambda ()
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(set-frame-parameter ,frame 'fullscreen 'fullboth)))
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;; Update EWMH properties.
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(exwm-workspace--update-ewmh-props)
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(exwm-workspace-switch frame t))))
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(defun exwm-workspace--remove-frame-as-workspace (frame)
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"Stop treating frame FRAME as a workspace."
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(cond
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((= 1 (exwm-workspace--count))
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(exwm--log "Cannot remove last workspace"))
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((not (exwm-workspace--workspace-p frame))
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(exwm--log "Frame `%s' is not a workspace" frame))
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(t
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(exwm--log "Removing frame `%s' as workspace" frame)
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(let* ((index (exwm-workspace--position frame))
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(lastp (= index (1- (exwm-workspace--count))))
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;; As we are removing this workspace, the one on its left is its
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;; natural substitutes... except when this is already the last one
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;; and there is none on its left.
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(nextw (elt exwm-workspace--list (+ index (if lastp -1 +1)))))
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;; Clients need to be moved to some other workspace before this is being
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;; removed.
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(dolist (pair exwm--id-buffer-alist)
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(with-current-buffer (cdr pair)
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(when (eq exwm--frame frame)
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(exwm-workspace-move-window nextw exwm--id))))
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;; Need to remove the workspace from the list in order for
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;; `exwm-workspace-switch' to calculate the right index.
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(setq exwm-workspace--list (delete frame exwm-workspace--list))
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(when (eq frame exwm-workspace--current)
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(exwm-workspace-switch nextw)))
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;; Update EWMH properties.
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(exwm-workspace--update-ewmh-props)
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;; Update switch history.
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(setq exwm-workspace--switch-history-outdated t))))
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(defun exwm-workspace--update-ewmh-props ()
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"Update EWMH properties to match the workspace list."
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(let ((num-workspaces (exwm-workspace--count)))
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;; Set _NET_NUMBER_OF_DESKTOPS (it's currently fixed).
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(xcb:+request exwm--connection
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(make-instance 'xcb:ewmh:set-_NET_NUMBER_OF_DESKTOPS
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:window exwm--root :data num-workspaces))
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;; Set _NET_DESKTOP_GEOMETRY.
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(exwm-workspace--set-desktop-geometry)
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;; Set _NET_DESKTOP_VIEWPORT (we don't support large desktop).
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(xcb:+request exwm--connection
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(make-instance 'xcb:ewmh:set-_NET_DESKTOP_VIEWPORT
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:window exwm--root
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:data (make-vector (* 2 num-workspaces) 0)))
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;; Update and set _NET_WORKAREA.
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(exwm-workspace--update-workareas)
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;; Set _NET_VIRTUAL_ROOTS (it's currently fixed.)
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(xcb:+request exwm--connection
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(make-instance 'xcb:ewmh:set-_NET_VIRTUAL_ROOTS
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:window exwm--root
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:data (vconcat (mapcar
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(lambda (i)
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(frame-parameter i 'exwm-workspace))
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exwm-workspace--list)))))
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(xcb:flush exwm--connection))
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(defun exwm-workspace--modify-all-x-frames-parameters (new-x-parameters)
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"Modifies `window-system-default-frame-alist' for the X Window System.
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NEW-X-PARAMETERS is an alist of frame parameters, merged into current
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@ -870,30 +1013,29 @@ applied to all subsequently created X frames."
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(cl-assert (and (< 0 exwm-workspace-number) (>= 10 exwm-workspace-number)))
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;; Prevent unexpected exit
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(setq confirm-kill-emacs #'exwm-workspace--confirm-kill-emacs)
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(let ((initial-workspaces (frame-list)))
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(if (not (exwm-workspace--minibuffer-own-frame-p))
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;; Initialize workspaces with minibuffers.
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(progn
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(setq exwm-workspace--list (frame-list))
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(when (< 1 (exwm-workspace--count))
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;; Exclude the initial frame.
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(dolist (i exwm-workspace--list)
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(dolist (i initial-workspaces)
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(unless (frame-parameter i 'window-id)
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(setq exwm-workspace--list (delq i exwm-workspace--list))))
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(cl-assert (= 1 (exwm-workspace--count)))
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(setq initial-workspaces (delq i initial-workspaces))))
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(cl-assert (= 1 (length initial-workspaces)))
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(setq exwm-workspace--client
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(frame-parameter (car exwm-workspace--list) 'client))
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(let ((f (car exwm-workspace--list)))
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(let ((f (car initial-workspaces)))
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;; Remove the possible internal border.
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(set-frame-parameter f 'internal-border-width 0)
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;; Prevent user from deleting this frame by accident.
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(set-frame-parameter f 'client nil))
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(set-frame-parameter f 'client nil)))
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;; Create remaining frames.
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(dotimes (_ (1- exwm-workspace-number))
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(nconc exwm-workspace--list
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(nconc initial-workspaces
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(list (make-frame '((window-system . x)
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(internal-border-width . 0))))))))
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(internal-border-width . 0)))))))
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;; Initialize workspaces without minibuffers.
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(let ((old-frames (frame-list)))
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(setq exwm-workspace--minibuffer
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(make-frame '((window-system . x) (minibuffer . only)
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(left . 10000) (right . 10000)
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@ -901,14 +1043,14 @@ applied to all subsequently created X frames."
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(internal-border-width . 0)
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(client . nil))))
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;; Remove/hide existing frames.
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(dolist (f old-frames)
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(dolist (f initial-workspaces)
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(if (frame-parameter f 'client)
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(progn
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(unless exwm-workspace--client
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(setq exwm-workspace--client (frame-parameter f 'client)))
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(make-frame-invisible f))
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(when (eq 'x (framep f)) ;do not delete the initial frame.
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(delete-frame f)))))
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(delete-frame f))))
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;; This is the only usable minibuffer frame.
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(setq default-minibuffer-frame exwm-workspace--minibuffer)
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(exwm-workspace--modify-all-x-frames-parameters
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@ -966,80 +1108,14 @@ applied to all subsequently created X frames."
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(modify-all-frames-parameters
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'((buffer-predicate . exwm-layout--other-buffer-predicate)))
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;; Configure workspaces
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(dolist (i exwm-workspace--list)
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(let ((outer-id (string-to-number (frame-parameter i 'outer-window-id)))
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(container (xcb:generate-id exwm--connection))
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(workspace (xcb:generate-id exwm--connection)))
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;; Save window IDs
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(set-frame-parameter i 'exwm-outer-id outer-id)
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(set-frame-parameter i 'exwm-container container)
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(set-frame-parameter i 'exwm-workspace workspace)
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(xcb:+request exwm--connection
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(make-instance 'xcb:CreateWindow
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:depth 0 :wid workspace :parent exwm--root
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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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:border-width 0 :class xcb:WindowClass:CopyFromParent
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:visual 0 ;CopyFromParent
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:value-mask (logior xcb:CW:OverrideRedirect
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xcb:CW:EventMask)
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:override-redirect 1
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:event-mask xcb:EventMask:SubstructureRedirect))
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(xcb:+request exwm--connection
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(make-instance 'xcb:CreateWindow
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:depth 0 :wid container :parent workspace
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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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:border-width 0 :class xcb:WindowClass:CopyFromParent
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:visual 0 ;CopyFromParent
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:value-mask xcb:CW:OverrideRedirect
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:override-redirect 1))
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(exwm--debug
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(xcb:+request exwm--connection
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(make-instance 'xcb:ewmh:set-_NET_WM_NAME
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:window workspace
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:data
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(format "EXWM workspace %d"
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(exwm-workspace--position i))))
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(xcb:+request exwm--connection
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(make-instance 'xcb:ewmh:set-_NET_WM_NAME
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:window container
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:data
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(format "EXWM workspace %d frame container"
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(exwm-workspace--position i)))))
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(xcb:+request exwm--connection
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(make-instance 'xcb:ReparentWindow
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:window outer-id :parent container :x 0 :y 0))
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(xcb:+request exwm--connection
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(make-instance 'xcb:MapWindow :window container))
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(xcb:+request exwm--connection
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(make-instance 'xcb:MapWindow :window workspace))))
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(dolist (i initial-workspaces)
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(exwm-workspace--add-frame-as-workspace i)))
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(xcb:flush exwm--connection)
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;; We have to advice `x-create-frame' or every call to it would hang EXWM
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(advice-add 'x-create-frame :around #'exwm-workspace--x-create-frame)
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;; Set _NET_NUMBER_OF_DESKTOPS (it's currently fixed).
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(xcb:+request exwm--connection
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(make-instance 'xcb:ewmh:set-_NET_NUMBER_OF_DESKTOPS
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:window exwm--root :data (exwm-workspace--count)))
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;; Set _NET_DESKTOP_GEOMETRY.
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(exwm-workspace--set-desktop-geometry)
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;; Set _NET_DESKTOP_VIEWPORT (we don't support large desktop).
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(xcb:+request exwm--connection
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(make-instance 'xcb:ewmh:set-_NET_DESKTOP_VIEWPORT
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:window exwm--root
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:data (make-vector (* 2 (exwm-workspace--count)) 0)))
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;; Update and set _NET_WORKAREA.
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(exwm-workspace--update-workareas)
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;; Set _NET_VIRTUAL_ROOTS (it's currently fixed.)
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(xcb:+request exwm--connection
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(make-instance 'xcb:ewmh:set-_NET_VIRTUAL_ROOTS
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:window exwm--root
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:data (vconcat (mapcar
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(lambda (i)
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(frame-parameter i 'exwm-workspace))
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exwm-workspace--list))))
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;; Make new frames create new workspaces.
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(add-hook 'after-make-frame-functions #'exwm-workspace--add-frame-as-workspace)
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(add-hook 'delete-frame-functions #'exwm-workspace--remove-frame-as-workspace)
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;; Switch to the first workspace
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(exwm-workspace-switch 0 t))
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@ -1060,7 +1136,9 @@ applied to all subsequently created X frames."
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(cl-delete '(exwm-workspace--display-buffer) display-buffer-alist
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:test #'equal))
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(remove-hook 'focus-in-hook #'exwm-workspace--on-focus-in)
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(advice-remove 'x-create-frame #'exwm-workspace--x-create-frame))
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(advice-remove 'x-create-frame #'exwm-workspace--x-create-frame)
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(remove-hook 'after-make-frame-functions #'exwm-workspace--add-frame-as-workspace)
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(remove-hook 'delete-frame-functions #'exwm-workspace--remove-frame-as-workspace))
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(defun exwm-workspace--post-init ()
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"The second stage in the initialization of the workspace module."
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