From 0ba43e15d9c9ffb3df8aeb3a7e446d9a4d62ccff Mon Sep 17 00:00:00 2001
From: Po Lu <luangruo@yahoo.com>
Date: Thu, 9 Jun 2022 15:44:51 +0800
Subject: Note caveats of `follow-tooltip' with system tooltips

* lisp/mouse.el (mouse-drag-and-drop-region): Turn off system
tooltips inside.
* src/xfns.c (Fx_begin_drag): Say that follow-tooltip doesn't
work with system tooltips.
---
 lisp/mouse.el | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'lisp/mouse.el')

diff --git a/lisp/mouse.el b/lisp/mouse.el
index 6a2b1738f71..11014fa1c5f 100644
--- a/lisp/mouse.el
+++ b/lisp/mouse.el
@@ -3103,6 +3103,9 @@ is copied instead of being cut."
          ;; tooltip.
          (mouse-fine-grained-tracking t)
          (was-tooltip-mode tooltip-mode)
+         ;; System tooltips tend to flicker and in general work
+         ;; incorrectly.
+         (use-system-tooltips nil)
          ;; Whether or not some text was ``cut'' from Emacs to another
          ;; program and the cleaanup code should not try modifying the
          ;; region.
-- 
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