diff options
Diffstat (limited to 'exwm-layout.el')
| -rw-r--r-- | exwm-layout.el | 98 |
1 files changed, 69 insertions, 29 deletions
diff --git a/exwm-layout.el b/exwm-layout.el index 6825cb56d33d..095e4611b107 100644 --- a/exwm-layout.el +++ b/exwm-layout.el @@ -240,35 +240,60 @@ (xcb:flush exwm--connection))) (cl-incf exwm-layout--fullscreen-frame-count)) +(defvar exwm-layout--other-buffer-exclude-exwm-mode-buffers nil + "When non-nil, prevent EXWM buffers from being selected by `other-buffer'.") + +(defvar exwm-layout--other-buffer-exclude-buffers nil + "List of buffers that should not be selected by `other-buffer'.") + +(defun exwm-layout--other-buffer-predicate (buffer) + "Return non-nil when the BUFFER may be displayed in selected frame. + +Prevents EXWM-mode buffers already being displayed on some other window from +being selected. + +Should be set as `buffer-predicate' frame parameter for all +frames. Used by `other-buffer'. + +When variable `exwm-layout--other-buffer-exclude-exwm-mode-buffers' +is t EXWM buffers are never selected by `other-buffer'. + +When variable `exwm-layout--other-buffer-exclude-buffers' is a +list of buffers, EXWM buffers belonging to that list are never +selected by `other-buffer'." + (or (not (eq 'exwm-mode (buffer-local-value 'major-mode buffer))) + (and (not exwm-layout--other-buffer-exclude-exwm-mode-buffers) + (not (memq buffer exwm-layout--other-buffer-exclude-buffers)) + ;; Do not select if already shown in some window. + (not (get-buffer-window buffer t))))) + (defvar exwm-layout-show-all-buffers nil "Non-nil to allow switching to buffers on other workspaces.") (defun exwm-layout--refresh () "Refresh layout." (let ((frame (selected-frame)) - (placeholder (or (get-buffer "*scratch*") - (progn - (set-buffer-major-mode - (get-buffer-create "*scratch*")) - (get-buffer "*scratch*")))) + covered-buffers ;EXWM-buffers covered by a new X window. + vacated-windows ;Windows previously displaying EXWM-buffers. windows) (if (not (memq frame exwm-workspace--list)) (if (frame-parameter frame 'exwm-outer-id) ;; Refresh a floating frame - (when (eq major-mode 'exwm-mode) - (let ((window (frame-first-window frame))) - (with-current-buffer (window-buffer window) - ;; It may be a buffer waiting to be killed. - (when (exwm--id->buffer exwm--id) - (exwm--log "Refresh floating window #x%x" exwm--id) - (exwm-layout--show exwm--id window))))) + (let ((window (frame-first-window frame))) + (with-current-buffer (window-buffer window) + (when (and (eq major-mode 'exwm-mode) + ;; It may be a buffer waiting to be killed. + (exwm--id->buffer exwm--id)) + (exwm--log "Refresh floating window #x%x" exwm--id) + (exwm-layout--show exwm--id window)))) ;; Other frames (e.g. terminal/graphical frame of emacsclient) ;; We shall bury all `exwm-mode' buffers in this case (setq windows (window-list frame 0)) ;exclude minibuffer - (dolist (window windows) - (with-current-buffer (window-buffer window) - (when (eq major-mode 'exwm-mode) - (set-window-buffer window placeholder))))) + (let ((exwm-layout--other-buffer-exclude-exwm-mode-buffers t)) + (dolist (window windows) + (with-current-buffer (window-buffer window) + (when (eq major-mode 'exwm-mode) + (switch-to-prev-buffer window)))))) ;; Refresh the whole workspace ;; Workspaces other than the active one can also be refreshed (RandR) (exwm--log "Refresh workspace %s" frame) @@ -282,21 +307,36 @@ (if (not windows) (when (eq frame exwm--frame) ;for exwm-layout-show-all-buffers (exwm-layout--hide exwm--id)) - (if (eq frame exwm--frame) - (exwm-layout--show exwm--id (car windows)) - (exwm-workspace-move-window - (cl-position frame exwm-workspace--list) exwm--id)) (let ((window (car windows))) - ;; Make sure this buffer is not displayed elsewhere - (dolist (i (get-buffer-window-list (current-buffer) 0 t)) - (unless (eq i window) - (set-window-buffer i placeholder)))))))) + (if (eq frame exwm--frame) + (exwm-layout--show exwm--id window) + (exwm-workspace-move-window + (cl-position frame exwm-workspace--list) exwm--id)) + ;; Make sure this buffer is not displayed elsewhere. Note down + ;; windows displaying an EXWM-buffer now displayed elsewhere; we + ;; need to display with some other buffer there. + (setq vacated-windows + (append vacated-windows (cdr (get-buffer-window-list + (current-buffer) 0 t)))) + ;; Note down when an EXWM-buffer is being covered by this + ;; buffer; we don't want it to reappear in some vacated window. + (let ((prev-buffer (car-safe + (car-safe (window-prev-buffers window))))) + (and + prev-buffer + (eq 'exwm-mode (buffer-local-value 'major-mode prev-buffer)) + (push prev-buffer covered-buffers)))))))) + ;; Set some sensible buffer to vacated windows. + (let ((exwm-layout--other-buffer-exclude-buffers covered-buffers)) + (dolist (window vacated-windows) + (switch-to-prev-buffer window))) ;; Make sure windows floating / on other workspaces are excluded - (dolist (window (window-list frame 0)) - (with-current-buffer (window-buffer window) - (when (and (eq major-mode 'exwm-mode) - (or exwm--floating-frame (not (eq frame exwm--frame)))) - (set-window-buffer window placeholder)))) + (let ((exwm-layout--other-buffer-exclude-exwm-mode-buffers t)) + (dolist (window (window-list frame 0)) + (with-current-buffer (window-buffer window) + (when (and (eq major-mode 'exwm-mode) + (or exwm--floating-frame (not (eq frame exwm--frame)))) + (switch-to-prev-buffer window))))) ;; Update _NET_CLIENT_LIST_STACKING (xcb:+request exwm--connection (make-instance 'xcb:ewmh:set-_NET_CLIENT_LIST_STACKING |