[elpa] master 0ddc794 22/50: always remove highlighting when a command caused multiple changes

[Michael Heerdegen]

branch: master
commit 0ddc7949925278bd5c54578b43199cc3d52b510b
Author: Michael Heerdegen <address@hidden>
Commit: Michael Heerdegen <address@hidden>

    always remove highlighting when a command caused multiple changes
---
 on-screen.el |   16 +++++++++++++---
 1 files changed, 13 insertions(+), 3 deletions(-)

diff --git a/on-screen.el b/on-screen.el
index e094eda..8c42636 100644
--- a/on-screen.el
+++ b/on-screen.el
@@ -210,7 +210,11 @@ if you scroll further until `on-screen-delay' is over."
   :group 'on-screen :type 'boolean)
 
 (defcustom on-screen-remove-when-edit nil
-  "Whether to instantly remove highlighting when editing."
+  "Whether to instantly remove highlighting when editing.
+
+In those situations where a single command causes multiple
+changes to a buffer highlighting is always removed to avoid
+confusion."
   :group 'on-screen :type 'boolean)
 
 (defcustom on-screen-treat-cut-lines nil
@@ -236,6 +240,9 @@ a non-nil value may make scrolling stuttering on slow 
computers."
 (defvar on-screen-data nil
   "Association list holding internal data.")
 
+(defvar on-screen-command-counter 0)
+(defvar on-screen-last-change 0)
+
 
 ;;; User Commands
 
@@ -446,6 +453,7 @@ only the windows of the selected frame."
 (defun on-screen-pre-command ()
   "Remember visible buffer parts in the selected frame."
   ;;   This normally goes to `pre-command-hook'.
+  (incf on-screen-command-counter)
   (condition-case nil
       (mapc (lambda (win) (with-current-buffer (window-buffer win)
                       (when (on-screen-enabled-p)
@@ -567,12 +575,14 @@ had changed."
   "Reset highligting for current buffer after it was changed.
 This has to be done for all its windows.  Goes to
 `after-change-functions'."
-  (when on-screen-remove-when-edit
+  (when (or on-screen-remove-when-edit
+           (= on-screen-last-change on-screen-command-counter))
     (let ((buf (current-buffer)))
       (when (on-screen-enabled-p buf)
        (dolist (win (on-screen-get-windows t))
          (when (eq (window-buffer win) buf)
-           (on-screen-remove-highlighting win)))))))
+           (on-screen-remove-highlighting win))))))
+  (setq on-screen-last-change on-screen-command-counter))
 
 (defun on-screen-after-wconf-change ()
   "Clean up after the window configuration has changed.