yanking a killed or saved region with a single mouse gesture

[Manoj Srivastava <srivasta@ieee.org>]

Hi,

        I've the years, I have grown  fond of the ability to save  (or
 kill) a region, and optionally yank it, using a single mouse gesture.
 I think this used to be in Emacs a long time ago, and I have retained
 he feature for personal use.

--8<---------------cut here---------------start------------->8---
 (define-key global-map [drag-mouse-2]   'mouse-save-drag)
 (define-key global-map [drag-mouse-3]   'mouse-yank-drag)
 (define-key global-map [S-drag-mouse-2] 'mouse-kill-drag)
 (define-key global-map [S-drag-mouse-3] 'mouse-kill-and-yank-drag)
--8<---------------cut here---------------end--------------->8---

        So mouse 2 saves, mouse 3 yanks the saved region, and holding
 down the shift key kills instead of saves.

        Would this be something that could be added back into emacs? Or
 is this too esoteric?

        manoj

(defun mouse-yank-drag (click arg)
  "Yank the region the mouse was dragged at at point"
  (interactive "e\nP")
  (save-excursion
    (let* ((start-posn (posn-point (event-start click)))
           (end-posn (posn-point (event-end click)))
           (start-window (posn-window (event-start click)))
           )
      (save-window-excursion
       (select-window start-window)
       (kill-new (buffer-substring start-posn end-posn))
       )))
  (yank arg))


(defun mouse-save-drag (click)
  "kill the region the mouse was dragged at at point"
  (interactive "e")
  (save-excursion
    (let* ((start-posn (posn-point (event-start click)))
           (end-posn (posn-point (event-end click)))
           (start-window (posn-window (event-start click)))
           )
      (save-window-excursion
       (select-window start-window)
       (kill-new (buffer-substring start-posn end-posn))
       )))
  )

(defun mouse-kill-drag (click)
  "kill the region the mouse was dragged at at point"
  (interactive "e")
  (save-excursion
    (let* ((start-posn (posn-point (event-start click)))
           (end-posn (posn-point (event-end click)))
           (start-window (posn-window (event-start click)))
           )
      (save-window-excursion
        (select-window start-window)
        (kill-new (buffer-substring start-posn end-posn))
        (delete-region   start-posn end-posn)
        ))))

(defun mouse-kill-and-yank-drag (click arg)
  "kill the region the mouse was dragged at at point"
  (interactive "e\nP")
  (save-excursion
    (let* ((start-posn (posn-point (event-start click)))
           (end-posn (posn-point (event-end click)))
           (start-window (posn-window (event-start click)))
           )
      (save-window-excursion
       (select-window start-window)
       (kill-new (buffer-substring start-posn end-posn))
       (delete-region   start-posn end-posn)
       )))
  (yank arg))


-- 
Thus spake the master programmer: "Time for you to leave."  -- Geoffrey
James, "The Tao of Programming"
Manoj Srivastava <srivasta@acm.org> <http://www.golden-gryphon.com/>  
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