Add user options to move point and scroll window during DND

* doc/emacs/frames.texi (Drag and Drop):
* etc/NEWS: Document new options 'dnd-scroll-margin' and
'dnd-indicate-insertion-point'.
* lisp/dnd.el (dnd-protocol-alist):
(dnd-open-remote-file-function):
(dnd-open-file-other-window): Add right group to defcustoms.
(dnd-scroll-margin, dnd-indicate-insertion-point): New user
options.
(dnd-handle-movement): New function.
* lisp/x-dnd.el (x-dnd-handle-xdnd):
(x-dnd-handle-motif): Call `dnd-handle-movement' when
appropriate.

1 files changed, 5 insertions, 0 deletions

diff --git a/etc/NEWS b/etc/NEWS
index 199f07a0334..037a9724d8a 100644
--- a/etc/NEWS
+++ b/etc/NEWS
@@ -196,6 +196,11 @@ If non-nil, this option allows scrolling a window while dragging text
 around without a scroll wheel.
 
 +++
+** New user options 'dnd-indicate-insertion-point' and 'dnd-scroll-margin'.
+These options allow adjusting point and scrolling a window when
+dragging items from another program.
+
++++
 ** New function 'command-query'.
 This function makes its argument command prompt the user for
 confirmation before executing.