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-rw-r--r--exwm-core.el2
-rw-r--r--exwm-input.el32
-rw-r--r--exwm-layout.el14
-rw-r--r--exwm-manage.el16
-rw-r--r--exwm-workspace.el7
-rw-r--r--exwm.el2
6 files changed, 72 insertions, 1 deletions
diff --git a/exwm-core.el b/exwm-core.el
index 5c501e4e3fb7..3159519f12a3 100644
--- a/exwm-core.el
+++ b/exwm-core.el
@@ -97,6 +97,7 @@ FORMAT-STRING is a string specifying the message to output, as in
 
 (defun exwm--lock (&rest _args)
   "Lock (disable all events)."
+  (exwm--log)
   (xcb:+request exwm--connection
       (make-instance 'xcb:ChangeWindowAttributes
                      :window exwm--root
@@ -106,6 +107,7 @@ FORMAT-STRING is a string specifying the message to output, as in
 
 (defun exwm--unlock (&rest _args)
   "Unlock (enable all events)."
+  (exwm--log)
   (xcb:+request exwm--connection
       (make-instance 'xcb:ChangeWindowAttributes
                      :window exwm--root
diff --git a/exwm-input.el b/exwm-input.el
index 57a28735031c..7885d189aa08 100644
--- a/exwm-input.el
+++ b/exwm-input.el
@@ -157,6 +157,7 @@ This value should always be overwritten.")
 (defun exwm-input--set-focus (id)
   "Set input focus to window ID in a proper way."
   (when (exwm--id->buffer id)
+    (exwm--log "id=#x%x" id)
     (with-current-buffer (exwm--id->buffer id)
       (exwm-input--update-timestamp
        (lambda (timestamp id send-input-focus wm-take-focus)
@@ -187,6 +188,7 @@ This value should always be overwritten.")
 
 ARGS are additional arguments to CALLBACK."
   (setq exwm-input--timestamp-callback (cons callback args))
+  (exwm--log)
   (xcb:+request exwm--connection
       (make-instance 'xcb:ChangeProperty
                      :mode xcb:PropMode:Replace
@@ -200,6 +202,7 @@ ARGS are additional arguments to CALLBACK."
 
 (defun exwm-input--on-PropertyNotify (data _synthetic)
   "Handle PropertyNotify events."
+  (exwm--log)
   (when exwm-input--timestamp-callback
     (let ((obj (make-instance 'xcb:PropertyNotify)))
       (xcb:unmarshal obj data)
@@ -218,6 +221,7 @@ ARGS are additional arguments to CALLBACK."
     (with-slots (time root event root-x root-y event-x event-y state) evt
       (setq buffer (exwm--id->buffer event)
             window (get-buffer-window buffer t))
+      (exwm--log "EnterNotify: buffer=%s; window=%s" buffer window)
       (when (and buffer window (not (eq window (selected-window))))
         (setq frame (window-frame window)
               frame-xid (frame-parameter frame 'exwm-id))
@@ -265,6 +269,8 @@ ARGS are additional arguments to CALLBACK."
              (eq (current-buffer) (window-buffer))
              (not (string-prefix-p " *temp*"
                                    (buffer-name (car (last (buffer-list)))))))
+    (exwm--log "current-buffer=%S selected-window=%S"
+               (current-buffer) (selected-window))
     (redirect-frame-focus (selected-frame) nil)
     (setq exwm-input--update-focus-window (selected-window))
     (exwm-input--update-focus-defer)))
@@ -296,6 +302,7 @@ ARGS are additional arguments to CALLBACK."
 (defun exwm-input--update-focus (window)
   "Update input focus."
   (when (window-live-p window)
+    (exwm--log "focus-window=%s focus-buffer=%s" window (window-buffer window))
     (with-current-buffer (window-buffer window)
       (if (derived-mode-p 'exwm-mode)
           (if (not (eq exwm--frame exwm-workspace--current))
@@ -331,6 +338,10 @@ ARGS are additional arguments to CALLBACK."
               ;; The focus is on another workspace (e.g. it got clicked)
               ;; so switch to it.
               (progn
+                (exwm--log "Switching to %s's workspace %s (%s)"
+                           window
+                           (window-frame window)
+                           (selected-frame))
                 (set-frame-parameter (selected-frame) 'exwm-selected-window
                                      window)
                 (exwm--defer 0 #'exwm-workspace-switch (selected-frame)))
@@ -346,12 +357,14 @@ ARGS are additional arguments to CALLBACK."
 
 (defun exwm-input--on-minibuffer-setup ()
   "Run in `minibuffer-setup-hook' to set input focus."
+  (exwm--log)
   (unless (exwm-workspace--client-p)
     ;; Set input focus on the Emacs frame
     (x-focus-frame (window-frame (minibuffer-selected-window)))))
 
 (defun exwm-input--set-active-window (&optional id)
   "Set _NET_ACTIVE_WINDOW."
+  (exwm--log)
   (xcb:+request exwm--connection
       (make-instance 'xcb:ewmh:set-_NET_ACTIVE_WINDOW
                      :window exwm--root
@@ -363,6 +376,8 @@ ARGS are additional arguments to CALLBACK."
         (mode xcb:Allow:SyncPointer)
         button-event window buffer frame)
     (xcb:unmarshal obj data)
+    (exwm--log "major-mode=%s buffer=%s"
+	     major-mode (buffer-name (current-buffer)))
     (with-slots (detail time event state) obj
       (setq button-event (xcb:keysyms:keysym->event exwm--connection
                                                     detail state)
@@ -412,12 +427,15 @@ ARGS are additional arguments to CALLBACK."
   "Handle KeyPress event."
   (let ((obj (make-instance 'xcb:KeyPress)))
     (xcb:unmarshal obj data)
+    (exwm--log "major-mode=%s buffer=%s"
+	     major-mode (buffer-name (current-buffer)))
     (if (derived-mode-p 'exwm-mode)
         (funcall exwm--on-KeyPress obj data)
       (exwm-input--on-KeyPress-char-mode obj))))
 
 (defun exwm-input--on-CreateNotify (data _synthetic)
   "Handle CreateNotify events."
+  (exwm--log)
   (let ((evt (make-instance 'xcb:CreateNotify)))
     (xcb:unmarshal evt data)
     (with-slots (window) evt
@@ -425,6 +443,7 @@ ARGS are additional arguments to CALLBACK."
 
 (defun exwm-input--update-global-prefix-keys ()
   "Update `exwm-input--global-prefix-keys'."
+  (exwm--log)
   (when exwm--connection
     (let ((original exwm-input--global-prefix-keys))
       (setq exwm-input--global-prefix-keys nil)
@@ -438,6 +457,7 @@ ARGS are additional arguments to CALLBACK."
                            'children))))))
 
 (defun exwm-input--grab-global-prefix-keys (&rest xwins)
+  (exwm--log)
   (let ((req (make-instance 'xcb:GrabKey
                             :owner-events 0
                             :grab-window nil
@@ -450,6 +470,8 @@ ARGS are additional arguments to CALLBACK."
       (setq keysym (xcb:keysyms:event->keysym exwm--connection k)
             keycode (xcb:keysyms:keysym->keycode exwm--connection
                                                  (car keysym)))
+      (exwm--log "Grabbing key=%s (keysym=%s keycode=%s)"
+                 (single-key-description k) keysym keycode)
       (setf (slot-value req 'modifiers) (cdr keysym)
             (slot-value req 'key) keycode)
       (dolist (xwin xwins)
@@ -498,6 +520,7 @@ specifically saved in the Customize interface for `exwm-input-global-keys'.
 In configuration you should customize or set `exwm-input-global-keys'
 instead."
   (interactive "KSet key globally: \nCSet key %s to command: ")
+  (exwm--log)
   (setq exwm-input-global-keys (append exwm-input-global-keys
                                        (list (cons key command))))
   (exwm-input--set-key key command)
@@ -517,6 +540,7 @@ instead."
 
 (defun exwm-input--mimic-read-event (event)
   "Process EVENT as if it were returned by `read-event'."
+  (exwm--log)
   (unless (eq 0 extra-keyboard-modifiers)
     (setq event (event-convert-list (append (event-modifiers
                                              extra-keyboard-modifiers)
@@ -559,6 +583,7 @@ instead."
   (with-slots (detail state) key-press
     (let ((keysym (xcb:keysyms:keycode->keysym exwm--connection detail state))
           event raw-event mode)
+      (exwm--log "%s" keysym)
       (when (and (/= 0 (car keysym))
                  (setq raw-event (xcb:keysyms:keysym->event
                                   exwm--connection (car keysym)
@@ -610,6 +635,7 @@ instead."
   (with-slots (detail state) key-press
     (let ((keysym (xcb:keysyms:keycode->keysym exwm--connection detail state))
           event raw-event)
+      (exwm--log "%s" keysym)
       (when (and (/= 0 (car keysym))
                  (setq raw-event (xcb:keysyms:keysym->event
                                   exwm--connection (car keysym)
@@ -660,6 +686,7 @@ instead."
   "Grab all key events on window ID."
   (unless id (setq id (exwm--buffer->id (window-buffer))))
   (when id
+    (exwm--log "id=#x%x" id)
     (when (xcb:+request-checked+request-check exwm--connection
               (make-instance 'xcb:GrabKey
                              :owner-events 0
@@ -676,6 +703,7 @@ instead."
   "Ungrab all key events on window ID."
   (unless id (setq id (exwm--buffer->id (window-buffer))))
   (when id
+    (exwm--log "id=#x%x" id)
     (when (xcb:+request-checked+request-check exwm--connection
               (make-instance 'xcb:UngrabKey
                              :key xcb:Grab:Any
@@ -692,6 +720,7 @@ instead."
   (interactive (list (when (derived-mode-p 'exwm-mode)
                        (exwm--buffer->id (window-buffer)))))
   (when id
+    (exwm--log "id=#x%x" id)
     (with-current-buffer (exwm--id->buffer id)
       (exwm-input--grab-keyboard id)
       (setq exwm--keyboard-grabbed t)
@@ -704,6 +733,7 @@ instead."
   (interactive (list (when (derived-mode-p 'exwm-mode)
                        (exwm--buffer->id (window-buffer)))))
   (when id
+    (exwm--log "id=#x%x" id)
     (with-current-buffer (exwm--id->buffer id)
       (exwm-input--release-keyboard id)
       (setq exwm--keyboard-grabbed nil)
@@ -716,6 +746,7 @@ instead."
   (interactive (list (when (derived-mode-p 'exwm-mode)
                        (exwm--buffer->id (window-buffer)))))
   (when id
+    (exwm--log "id=#x%x" id)
     (with-current-buffer (exwm--id->buffer id)
       (if exwm--keyboard-grabbed
           (exwm-input-release-keyboard id)
@@ -731,6 +762,7 @@ instead."
                                                (car keysym)))
     (when (/= 0 keycode)
       (setq id (exwm--buffer->id (window-buffer (selected-window))))
+      (exwm--log "id=#x%x event=%s keycode" id event keycode)
       (dolist (class '(xcb:KeyPress xcb:KeyRelease))
         (xcb:+request exwm--connection
             (make-instance 'xcb:SendEvent
diff --git a/exwm-layout.el b/exwm-layout.el
index 9427607712d7..4aa4804a739b 100644
--- a/exwm-layout.el
+++ b/exwm-layout.el
@@ -59,6 +59,7 @@
 
 (defun exwm-layout--set-state (id state)
   "Set WM_STATE."
+  (exwm--log "id=#x%x" id)
   (xcb:+request exwm--connection
       (make-instance 'xcb:icccm:set-WM_STATE
                      :window id :state state :icon xcb:Window:None))
@@ -146,6 +147,7 @@
 (cl-defun exwm-layout-set-fullscreen (&optional id)
   "Make window ID fullscreen."
   (interactive)
+  (exwm--log "id=#x%x" (or id 0))
   (unless (and (or id (derived-mode-p 'exwm-mode))
                (not (exwm-layout--fullscreen-p)))
     (cl-return-from exwm-layout-set-fullscreen))
@@ -174,6 +176,7 @@
 (cl-defun exwm-layout-unset-fullscreen (&optional id)
   "Restore window from fullscreen state."
   (interactive)
+  (exwm--log "id=#x%x" (or id 0))
   (unless (and (or id (derived-mode-p 'exwm-mode))
                (exwm-layout--fullscreen-p))
     (cl-return-from exwm-layout-unset-fullscreen))
@@ -203,6 +206,7 @@
 (cl-defun exwm-layout-toggle-fullscreen (&optional id)
   "Toggle fullscreen mode."
   (interactive (list (exwm--buffer->id (window-buffer))))
+  (exwm--log "id=#x%x" (or id 0))
   (unless (or id (derived-mode-p 'exwm-mode))
     (cl-return-from exwm-layout-toggle-fullscreen))
   (when id
@@ -234,6 +238,7 @@ selected by `other-buffer'."
 
 (defun exwm-layout--set-client-list-stacking ()
   "Set _NET_CLIENT_LIST_STACKING."
+  (exwm--log)
   (let (id clients-floating clients clients-iconic clients-other)
     (dolist (pair exwm--id-buffer-alist)
       (setq id (car pair))
@@ -261,6 +266,7 @@ selected by `other-buffer'."
   ;; `window-configuration-change-hook' makes the frame selected.
   (unless frame
     (setq frame (selected-frame)))
+  (exwm--log "frame=%s" frame)
   (let (covered-buffers   ;EXWM-buffers covered by a new X window.
         vacated-windows   ;Windows previously displaying EXWM-buffers.
         windows)
@@ -333,6 +339,7 @@ selected by `other-buffer'."
 
 (defun exwm-layout--on-minibuffer-setup ()
   "Refresh layout when minibuffer grows."
+  (exwm--log)
   (unless (exwm-workspace--client-p)
     (exwm--defer 0 (lambda ()
                      (when (< 1 (window-height (minibuffer-window)))
@@ -345,6 +352,7 @@ selected by `other-buffer'."
              (or (cl-position ?\n (current-message))
                  (> (length (current-message))
                     (frame-width exwm-workspace--current))))
+    (exwm--log)
     (if dirty
         (exwm-layout--refresh)
       (exwm--defer 0 #'exwm-layout--refresh))))
@@ -361,6 +369,7 @@ Normal hints are checked and regarded if the selected window is displaying an
 `exwm-mode' buffer.  However, this may violate the normal hints set on other X
 windows."
   (interactive "p")
+  (exwm--log)
   (cond
    ((zerop delta))                     ;no operation
    ((window-minibuffer-p))             ;avoid resize minibuffer-window
@@ -466,6 +475,7 @@ See also `exwm-layout-enlarge-window'."
 (defun exwm-layout-hide-mode-line ()
   "Hide mode-line."
   (interactive)
+  (exwm--log)
   (when (and (derived-mode-p 'exwm-mode) mode-line-format)
     (let (mode-line-height)
       (when exwm--floating-frame
@@ -484,6 +494,7 @@ See also `exwm-layout-enlarge-window'."
 (defun exwm-layout-show-mode-line ()
   "Show mode-line."
   (interactive)
+  (exwm--log)
   (when (and (derived-mode-p 'exwm-mode) (not mode-line-format))
     (setq mode-line-format exwm--mode-line-format
           exwm--mode-line-format nil)
@@ -501,6 +512,7 @@ See also `exwm-layout-enlarge-window'."
 (defun exwm-layout-toggle-mode-line ()
   "Toggle the display of mode-line."
   (interactive)
+  (exwm--log)
   (when (derived-mode-p 'exwm-mode)
     (if mode-line-format
         (exwm-layout-hide-mode-line)
@@ -509,6 +521,7 @@ See also `exwm-layout-enlarge-window'."
 (defun exwm-layout--init ()
   "Initialize layout module."
   ;; Auto refresh layout
+  (exwm--log)
   (add-hook 'window-configuration-change-hook #'exwm-layout--refresh)
   ;; The behavior of `window-configuration-change-hook' will be changed.
   (when (fboundp 'window-pixel-width-before-size-change)
@@ -522,6 +535,7 @@ See also `exwm-layout-enlarge-window'."
 
 (defun exwm-layout--exit ()
   "Exit the layout module."
+  (exwm--log)
   (remove-hook 'window-configuration-change-hook #'exwm-layout--refresh)
   (when (fboundp 'window-pixel-width-before-size-change)
     (remove-hook 'window-size-change-functions #'exwm-layout--refresh))
diff --git a/exwm-manage.el b/exwm-manage.el
index 349157f1ff20..81a486c09795 100644
--- a/exwm-manage.el
+++ b/exwm-manage.el
@@ -119,6 +119,7 @@ You can still make the X windows floating afterwards."
 
 (defun exwm-manage--update-geometry (id &optional force)
   "Update window geometry."
+  (exwm--log "id=#x%x" id)
   (with-current-buffer (exwm--id->buffer id)
     (unless (and exwm--geometry (not force))
       (let ((reply (xcb:+request-unchecked+reply exwm--connection
@@ -134,6 +135,7 @@ You can still make the X windows floating afterwards."
 
 (defun exwm-manage--update-ewmh-state (id)
   "Update _NET_WM_STATE."
+  (exwm--log "id=#x%x" id)
   (with-current-buffer (exwm--id->buffer id)
     (unless exwm--ewmh-state
       (let ((reply (xcb:+request-unchecked+reply exwm--connection
@@ -144,6 +146,7 @@ You can still make the X windows floating afterwards."
 
 (defun exwm-manage--update-mwm-hints (id &optional force)
   "Update _MOTIF_WM_HINTS."
+  (exwm--log "id=#x%x" id)
   (with-current-buffer (exwm--id->buffer id)
     (unless (and (not exwm--mwm-hints-decorations) (not force))
       (let ((reply (xcb:+request-unchecked+reply exwm--connection
@@ -167,6 +170,7 @@ You can still make the X windows floating afterwards."
 
 (defun exwm-manage--set-client-list ()
   "Set _NET_CLIENT_LIST."
+  (exwm--log)
   (xcb:+request exwm--connection
       (make-instance 'xcb:ewmh:set-_NET_CLIENT_LIST
                      :window exwm--root
@@ -174,6 +178,7 @@ You can still make the X windows floating afterwards."
 
 (cl-defun exwm-manage--get-configurations ()
   "Retrieve configurations for this buffer."
+  (exwm--log)
   (when (derived-mode-p 'exwm-mode)
     (dolist (i exwm-manage-configurations)
       (save-current-buffer
@@ -412,6 +417,7 @@ manager is shutting down."
 
 (defun exwm-manage--scan ()
   "Search for existing windows and try to manage them."
+  (exwm--log)
   (let* ((tree (xcb:+request-unchecked+reply exwm--connection
                    (make-instance 'xcb:QueryTree
                                   :window exwm--root)))
@@ -433,6 +439,7 @@ manager is shutting down."
 
 (defun exwm-manage--kill-buffer-query-function ()
   "Run in `kill-buffer-query-functions'."
+  (exwm--log "id=#x%x; buffer=%s" exwm--id (current-buffer))
   (catch 'return
     (when (or (not exwm--id)
               (xcb:+request-checked+request-check exwm--connection
@@ -510,6 +517,7 @@ Would you like to kill it? "
 (defun exwm-manage--kill-client (&optional id)
   "Kill an X client."
   (unless id (setq id (exwm--buffer->id (current-buffer))))
+  (exwm--log "id=#x%x" id)
   (let* ((response (xcb:+request-unchecked+reply exwm--connection
                        (make-instance 'xcb:ewmh:get-_NET_WM_PID :window id)))
          (pid (and response (slot-value response 'value)))
@@ -526,12 +534,14 @@ Would you like to kill it? "
 
 (defun exwm-manage--add-frame (frame)
   "Run in `after-make-frame-functions'."
+  (exwm--log "frame=%s" frame)
   (when (display-graphic-p frame)
     (push (string-to-number (frame-parameter frame 'outer-window-id))
           exwm-manage--frame-outer-id-list)))
 
 (defun exwm-manage--remove-frame (frame)
   "Run in `delete-frame-functions'."
+  (exwm--log "frame=%s" frame)
   (when (display-graphic-p frame)
     (setq exwm-manage--frame-outer-id-list
           (delq (string-to-number (frame-parameter frame 'outer-window-id))
@@ -539,6 +549,7 @@ Would you like to kill it? "
 
 (defun exwm-manage--on-ConfigureRequest (data _synthetic)
   "Handle ConfigureRequest event."
+  (exwm--log)
   (let ((obj (make-instance 'xcb:ConfigureRequest))
         buffer edges width-delta height-delta)
     (xcb:unmarshal obj data)
@@ -631,6 +642,7 @@ border-width: %d; sibling: #x%x; stack-mode: %d"
   (let ((obj (make-instance 'xcb:MapRequest)))
     (xcb:unmarshal obj data)
     (with-slots (parent window) obj
+      (exwm--log "id=#x%x parent=#x%x" window parent)
       (if (assoc window exwm--id-buffer-alist)
           (with-current-buffer (exwm--id->buffer window)
             (if (exwm-layout--iconic-state-p)
@@ -650,12 +662,13 @@ border-width: %d; sibling: #x%x; stack-mode: %d"
   (let ((obj (make-instance 'xcb:UnmapNotify)))
     (xcb:unmarshal obj data)
     (with-slots (window) obj
-      (exwm--log "UnmapNotify from #x%x" window)
+      (exwm--log "id=#x%x" window)
       (exwm-manage--unmanage-window window t))))
 
 (defun exwm-manage--on-DestroyNotify (data synthetic)
   "Handle DestroyNotify event."
   (unless synthetic
+    (exwm--log)
     (let ((obj (make-instance 'xcb:DestroyNotify)))
       (xcb:unmarshal obj data)
       (exwm--log "DestroyNotify from #x%x" (slot-value obj 'window))
@@ -664,6 +677,7 @@ border-width: %d; sibling: #x%x; stack-mode: %d"
 (defun exwm-manage--init ()
   "Initialize manage module."
   ;; Intern _MOTIF_WM_HINTS
+  (exwm--log)
   (let ((atom-name "_MOTIF_WM_HINTS"))
     (setq exwm-manage--_MOTIF_WM_HINTS
           (slot-value (xcb:+request-unchecked+reply exwm--connection
diff --git a/exwm-workspace.el b/exwm-workspace.el
index 1034966374bf..bcfffff1d354 100644
--- a/exwm-workspace.el
+++ b/exwm-workspace.el
@@ -375,6 +375,7 @@ NIL if FRAME is not a workspace"
 
 (defun exwm-workspace--set-active (frame active)
   "Make frame FRAME active on its output."
+  (exwm--log "active=%s; frame=%s" frame active)
   (set-frame-parameter frame 'exwm-active active)
   (if active
       (exwm-workspace--set-fullscreen frame)
@@ -387,6 +388,7 @@ NIL if FRAME is not a workspace"
 
 (defun exwm-workspace--set-fullscreen (frame)
   "Make frame FRAME fullscreen according to `exwm-workspace--workareas'."
+  (exwm--log "frame=%s" frame)
   (let ((workarea (elt exwm-workspace--workareas
                        (exwm-workspace--position frame)))
         (id (frame-parameter frame 'exwm-outer-id))
@@ -396,6 +398,7 @@ NIL if FRAME is not a workspace"
           y (aref workarea 1)
           width (aref workarea 2)
           height (aref workarea 3))
+    (exwm--log "x=%s; y=%s; w=%s; h=%s" x y width height)
     (when (and (eq frame exwm-workspace--current)
                (exwm-workspace--minibuffer-own-frame-p))
       (exwm-workspace--resize-minibuffer-frame))
@@ -516,6 +519,7 @@ for internal use only."
            (<= 0 current-prefix-arg (exwm-workspace--count)))
       current-prefix-arg)
      (t 0))))
+  (exwm--log)
   (let* ((frame (exwm-workspace--workspace-from-frame-or-index frame-or-index))
          (old-frame exwm-workspace--current)
          (index (exwm-workspace--position frame))
@@ -665,6 +669,7 @@ Passing a workspace frame as the first option is for internal use only."
                  (format "Swap workspace %d with: "
                          (exwm-workspace--position w1))))
        (list w1 w2))))
+  (exwm--log)
   (let ((pos1 (exwm-workspace--position workspace1))
         (pos2 (exwm-workspace--position workspace2)))
     (if (or (not pos1) (not pos2) (= pos1 pos2))
@@ -703,6 +708,7 @@ before it."
           (<= 0 current-prefix-arg (exwm-workspace--count)))
      (list exwm-workspace--current current-prefix-arg))
     (t (list exwm-workspace--current 0))))
+  (exwm--log)
   (let ((pos (exwm-workspace--position workspace))
         flag start end index)
     (if (= nth pos)
@@ -928,6 +934,7 @@ INDEX must not exceed the current number of workspaces."
                       (remq #'exwm-input--on-buffer-list-update
                             buffer-list-update-hook)))
                  (rename-buffer (concat " " (buffer-name)))))))))))
+  (exwm--log)
   (when buffer-or-name
     (with-current-buffer buffer-or-name
       (if (derived-mode-p 'exwm-mode)
diff --git a/exwm.el b/exwm.el
index 9f9b6f468105..6b48a2bdc365 100644
--- a/exwm.el
+++ b/exwm.el
@@ -360,6 +360,7 @@
     (xcb:unmarshal obj data)
     (setq id (slot-value obj 'window)
           atom (slot-value obj 'atom))
+    (exwm--log "atom=%s(%s)" (x-get-atom-name atom exwm-workspace--current) atom)
     (setq buffer (exwm--id->buffer id))
     (if (not (buffer-live-p buffer))
         ;; Properties of unmanaged X windows.
@@ -397,6 +398,7 @@
     (setq type (slot-value obj 'type)
           id (slot-value obj 'window)
           data (slot-value (slot-value obj 'data) 'data32))
+    (exwm--log "atom=%s(%s)" (x-get-atom-name type exwm-workspace--current) type)
     (cond
      ;; _NET_NUMBER_OF_DESKTOPS.
      ((= type xcb:Atom:_NET_NUMBER_OF_DESKTOPS)