master dd8db560c2: Disable tooltip timeouts for drag-and-drop tooltips

[Po Lu]

branch: master
commit dd8db560c25958f8e3ab9c46d6df560fce7c0a88
Author: Po Lu <luangruo@yahoo.com>
Commit: Po Lu <luangruo@yahoo.com>

    Disable tooltip timeouts for drag-and-drop tooltips
    
    * lisp/mouse.el (mouse-drag-and-drop-region-display-tooltip):
    Don't time out the created tooltip.
---
 lisp/mouse.el | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/lisp/mouse.el b/lisp/mouse.el
index 11014fa1c5..9cf6635a01 100644
--- a/lisp/mouse.el
+++ b/lisp/mouse.el
@@ -3056,7 +3056,10 @@ Call `tooltip-show-help-non-mode' instead on 
non-graphical displays."
          (setf (alist-get 'border-color params) fg))
        (when (stringp bg)
          (setf (alist-get 'background-color params) bg))
-        (x-show-tip tooltip nil params))
+        ;; Don't time out: this leads to very confusing behavior when
+        ;; Emacs isn't visible, and the only indication that the user
+        ;; is actually dragging something abruptly disappears.
+        (x-show-tip tooltip nil params most-positive-fixnum))
     (tooltip-show-help-non-mode tooltip)))
 
 (declare-function x-hide-tip "xfns.c")