[nongnu] elpa/auto-dim-other-buffers a87cf772ac 61/82: Dim only the last buffer when loosing focus

[ELPA Syncer]

branch: elpa/auto-dim-other-buffers
commit a87cf772ac4517864bd11e6d053d7dcedd802012
Author: Michal Nazarewicz <mina86@mina86.com>
Commit: Michal Nazarewicz <mina86@mina86.com>

    Dim only the last buffer when loosing focus
    
    When Emacs frame looses focus, we know exactly which buffer is the
    undimmed one.  There’s no reason to go through all buffers and dim
    them all since looking at only that one is sufficient.  Do that.
---
 auto-dim-other-buffers.el | 54 +++++++++++++++++++++--------------------------
 1 file changed, 24 insertions(+), 30 deletions(-)

diff --git a/auto-dim-other-buffers.el b/auto-dim-other-buffers.el
index 8679d120a4..925eb1a6fb 100644
--- a/auto-dim-other-buffers.el
+++ b/auto-dim-other-buffers.el
@@ -8,7 +8,7 @@
 ;;     Michal Nazarewicz <mina86@mina86.com>
 ;; Maintainer: Michal Nazarewicz <mina86@mina86.com>
 ;; URL: https://github.com/mina86/auto-dim-other-buffers.el
-;; Version: 1.9
+;; Version: 1.9.1
 
 ;; This file is not part of GNU Emacs.
 
@@ -117,8 +117,13 @@ Currently only mini buffer and echo areas are ignored."
 
 (defun adob--focus-out-hook ()
   "Dim all buffers if `auto-dim-other-buffers-dim-on-focus-out'."
-  (when auto-dim-other-buffers-dim-on-focus-out
-    (adob--dim-all-buffers)))
+  (when (and auto-dim-other-buffers-dim-on-focus-out
+             adob--last-buffer
+             (buffer-live-p adob--last-buffer)
+             (not (adob--never-dim-p adob--last-buffer)))
+    (with-current-buffer adob--last-buffer
+      (adob--dim-buffer))
+    (setq adob--last-buffer nil)))
 
 (defun adob--focus-in-hook ()
   "Undim current buffers if `auto-dim-other-buffers-dim-on-focus-out'."
@@ -126,37 +131,26 @@ Currently only mini buffer and echo areas are ignored."
     (adob--undim-buffer)
     (setq adob--last-buffer (current-buffer))))
 
-(defun adob--dim-all-buffers (&optional except-for)
-  "Dim all buffers which except for EXCEPT-FOR and any ignored buffers.
-If EXCEPT-FOR is non-nil, it specifies buffer which should not be
-affected.  Similarly, any buffers for which `adob--never-dim-p'
-function returns non-nil won’t be touched either."
-  (save-current-buffer
-    (dolist (buffer (buffer-list))
-      (unless (or (eq buffer except-for)
-                  (adob--never-dim-p buffer))
-        (set-buffer buffer)
-        (adob--dim-buffer)))))
-
-(defun adob--hooks (callback)
-  "Add (if CALLBACK is `add-hook') or remove (if `remove-hook') adob hooks."
-  (dolist (args
-           '((buffer-list-update-hook adob--buffer-list-update-hook)
-             (focus-out-hook adob--focus-out-hook)
-             (focus-in-hook adob--focus-in-hook)))
-    (apply callback args)))
-
 ;;;###autoload
 (define-minor-mode auto-dim-other-buffers-mode
   "Visually makes non-current buffers less prominent"
   :global t
-  (if auto-dim-other-buffers-mode
-      (progn
-        (adob--dim-all-buffers (setq adob--last-buffer (current-buffer)))
-        (adob--hooks 'add-hook))
-    (setq adob--last-buffer nil)
-    (adob--hooks 'remove-hook)
-    (save-current-buffer
+  (let ((callback (if auto-dim-other-buffers-mode #'add-hook #'remove-hook)))
+    (dolist (args '((buffer-list-update-hook adob--buffer-list-update-hook)
+                    (focus-out-hook adob--focus-out-hook)
+                    (focus-in-hook adob--focus-in-hook)))
+      (apply callback args)))
+
+  (save-current-buffer
+    (if auto-dim-other-buffers-mode
+        (progn
+          (setq adob--last-buffer (current-buffer))
+          (dolist (buffer (buffer-list))
+            (unless (or (eq buffer adob--last-buffer)
+                        (adob--never-dim-p buffer))
+              (set-buffer buffer)
+              (adob--dim-buffer))))
+      (setq adob--last-buffer nil)
       (dolist (buffer (buffer-list))
         (when (local-variable-p 'adob--face-mode-remapping buffer)
           (set-buffer buffer)