[elpa] externals/logos 59ed10c263: Revise how fringe is updated (amend bfab7c9)

[ELPA Syncer]

branch: externals/logos
commit 59ed10c263c160229e6596f22e90c7a5bf8e29fb
Author: Protesilaos Stavrou <info@protesilaos.com>
Commit: Protesilaos Stavrou <info@protesilaos.com>

    Revise how fringe is updated (amend bfab7c9)
    
    The problem with the previous commit was that it (i) did not apply to
    all buffers, (ii) was not scoped by logos-focus-mode so it caused
    unwanted side-effects.
---
 README.org |  9 ++++-----
 logos.el   | 14 ++++++++++----
 2 files changed, 14 insertions(+), 9 deletions(-)

diff --git a/README.org b/README.org
index e844d95a48..35b4f84e14 100644
--- a/README.org
+++ b/README.org
@@ -490,12 +490,12 @@ it remaps its background color to be the same as that of 
the ~default~
 face.  For example, if the main background is white while the fringe is
 gray, the fringe will become white as well.
 
-#+findex: logos-update-fringe-color-post-theme-load
+#+findex: logos-update-fringe-in-buffers
 The problem with this approach is that the color is not automatically
 updated upon switching to a new theme, such as by toggling between one
 with a light background to another with a dark one.  The solution is to
-assign the ~logos-update-fringe-color-post-theme-load~ function to a
-hook that is triggered by the theme-loading operation.
+assign the ~logos-update-fringe-in-buffers~ function to a hook that is
+triggered by the theme-loading operation.
 
 Some themes provide such a hook.  For example, the =modus-themes=
 package has the ~modus-themes-after-load-theme-hook~ (the themes
@@ -503,8 +503,7 @@ package has the ~modus-themes-after-load-theme-hook~ (the 
themes
 higher).
 
 #+begin_src emacs-lisp
-(add-hook 'modus-themes-after-load-theme-hook
-          #'logos-update-fringe-color-post-theme-load)
+(add-hook 'modus-themes-after-load-theme-hook #'logos-update-fringe-in-buffers)
 #+end_src
 
 A user-defined, theme-agnostic setup for such a hook can be configured
diff --git a/logos.el b/logos.el
index 4b0e92100b..8ace6a8cad 100644
--- a/logos.el
+++ b/logos.el
@@ -443,8 +443,15 @@ options: `logos-scroll-lock', `logos-variable-pitch',
   (when logos--fringe-remap-cookie
     (face-remap-remove-relative logos--fringe-remap-cookie)))
 
-(defun logos-update-fringe-color-post-theme-load ()
-  "Recalculate the remapped fringe color.
+(defun logos--update-fringe (buffer)
+  "Update fringe in current BUFFER."
+  (with-current-buffer buffer
+    (when logos-focus-mode
+      (logos--remove-fringe-remap)
+      (logos--hide-fringe))))
+
+(defun logos-update-fringe-in-buffers ()
+  "Run `logos--update-fringe' through the `buffer-list'.
 This is only relevant if the user option `logos-hide-fringe' is
 non-nil and the `logos-focus-mode' is enabled.
 
@@ -452,8 +459,7 @@ Bind this function to a hook that runs at the post theme 
load
 phase.  For example: `modus-themes-after-load-theme-hook' from
 the `modus-themes' (`modus-operandi' and `modus-vivendi' themes
 are built into Emacs)."
-  (logos--remove-fringe-remap)
-  (logos--hide-fringe))
+  (mapc #'logos--update-fringe (buffer-list)))
 
 (provide 'logos)
 ;;; logos.el ends here