xwidget.el: limit buffer-name flicker in mode-line

* lisp/xwidget.el (xwidget-webkit): New customization group.
(xwidget-webkit-buffer-name-prefix): New user option.
(xwidget-webkit-callback): with-current-buffer only after get title,
which can limit buffer-name change in mode-line.
(xwidget-webkit-new-session, xwidget-webkit-import-widget): Use
current buffer to generate a temp xwidget-webkit buffer.

1 files changed, 4 insertions, 0 deletions

diff --git a/etc/NEWS b/etc/NEWS
index 874af33c752..bb25365030d 100644
--- a/etc/NEWS
+++ b/etc/NEWS
@@ -504,6 +504,10 @@ This is a convenience function to extract the field data from
 
 ** Xwidgets
 
+---
+*** New user option 'xwidget-webkit-buffer-name-prefix'.
+This allows the user to change the webkit buffer names.
+
 +++
 *** New minor mode 'xwidget-webkit-edit-mode'.
 When this mode is enabled, self-inserting characters and other common