GitLab

* term/x-win.el: require x-dnd, set after-make-frame-functions
to x-dnd-init-frame, let x-dnd-handle-drag-n-drop-event handle
drag-n-drop event.

* dired.el (dired-dnd-test-function, dired-dnd-popup-notice)
(dired-dnd-do-ask-action, dired-dnd-handle-local-file)
(dired-dnd-handle-file): New functions for drag and drop support.
(dired-mode): Initialize drag and drop if x-dnd present.