Merge commit 'eeac41976bc7b1aa5e732fb476d24ab4c2890712'

[gnu-emacs-elpa] / packages / beacon / beacon.el

diff --git a/packages/beacon/beacon.el b/packages/beacon/beacon.el
index 66853ca9a8c8ea976c98d9c2a95250df9aa1e15b..800c95858d7d45e0c5fe7d707fb85bf1ea9e24db 100644 (file)
--- a/packages/beacon/beacon.el
+++ b/packages/beacon/beacon.el
@@ -271,11 +271,19 @@ If DELTA is nil, return nil."
        (markerp beacon--previous-place)
        (equal (marker-buffer beacon--previous-place)
               (current-buffer))
+       ;; Quick check that prevents running the code below in very
+       ;; short movements (like typing).
        (> (abs (- (point) beacon--previous-place))
           delta)
-       (> (count-screen-lines (min (point) beacon--previous-place)
-                              (max (point) beacon--previous-place))
-          delta)))
+       ;; Check if the movement was >= DELTA lines by moving DELTA
+       ;; lines. `count-screen-lines' is too slow if the movement had
+       ;; thousands of lines.
+       (save-excursion
+         (let ((p (point)))
+           (goto-char (min beacon--previous-place p))
+           (vertical-motion delta)
+           (> (max p beacon--previous-place)
+              (line-beginning-position))))))
 
 (defun beacon--maybe-push-mark ()
   "Push mark if it seems to be safe."
@@ -343,11 +351,17 @@ unreliable, so just blink immediately."
   (if beacon-mode
       (progn
         (add-hook 'window-scroll-functions #'beacon--window-scroll-function)
+        (add-hook 'focus-in-hook #'beacon-blink)
         (add-hook 'post-command-hook #'beacon--post-command)
         (add-hook 'pre-command-hook #'beacon--vanish))
+    (remove-hook 'focus-in-hook #'beacon-blink)
     (remove-hook 'window-scroll-functions #'beacon--window-scroll-function)
     (remove-hook 'post-command-hook #'beacon--post-command)
     (remove-hook 'pre-command-hook #'beacon--vanish)))
 
 (provide 'beacon)
 ;;; beacon.el ends here
+
+;; Local Variables:
+;; indent-tabs-mode: nil
+;; End: