Provide additional default values (directories at other Dired

windows) via M-n in the minibuffer of some Dired commands.

* dired-aux.el (dired-diff, dired-compare-directories)
(dired-do-create-files): Use `dired-dwim-target-defaults' to set
`minibuffer-default' in `minibuffer-with-setup-hook'.
(dired-dwim-target-directory): Find a window that displays Dired
buffer instead of failing when the next window is not Dired.
Use `get-window-with-predicate' to find for the next Dired window.
(dired-dwim-target-defaults): New function.

* ediff-util.el (ediff-read-file-name):
Use `dired-dwim-target-defaults' to set `minibuffer-default'
in `minibuffer-with-setup-hook'.

1 files changed, 3 insertions, 1 deletions

diff --git a/etc/NEWS b/etc/NEWS
index 58ff7c6705f..2f288cba045 100644
--- a/etc/NEWS
+++ b/etc/NEWS
@@ -152,7 +152,9 @@ when the value of the new variable `completions-format' is `vertical'.
 
 ** M-n provides more default values in the minibuffer of commands that
 read a file and directory name: a file name at point (when ffap is loaded
-without ffap-bindings), a file name on the current line in the Dired buffer.
+without ffap-bindings), a file name on the current line in the Dired buffer,
+a directory name of adjacent Dired windows for Dired commands that can
+operate on several directories (copy, rename, diff).
 
 ** M-r is bound to the new `move-to-window-line-top-bottom'
 to mirror the new behavior of C-l in Emacs-23.1.