view tests/Dnd/README @ 5067:7d7ae8db0341

add functions `stable-union' and `stable-intersection' to do stable set operations -------------------- ChangeLog entries follow: -------------------- lisp/ChangeLog addition: 2010-02-22 Ben Wing <ben@xemacs.org> * cl-seq.el: * cl-seq.el (stable-union): New. * cl-seq.el (stable-intersection): New. New functions to do stable set operations, i.e. preserve the order of the elements in the argument lists, and prefer LIST1 over LIST2 when ordering the combined result. The result looks as much like LIST1 as possible, followed (in the case of `stable-union') by any necessary elements from LIST2, in order. This is contrary to `union' and `intersection', which are not required to be order- preserving and are not -- they prefer LIST2 and output results in backwards order.
author Ben Wing <ben@xemacs.org>
date Mon, 22 Feb 2010 21:23:02 -0600
parents bc4f2511bbea
children
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 * Sun May 3 1998 Oliver Graf <ograf@fga.de>

This path contains test code for the new XEmacs
Drag'n'Drop code.

To test the code do the following:
1) call 'bash droptest.sh' to create the test files in /tmp
2) load and eval droptest.el in XEmacs
3) Try to do some internal DnD by using the sources and targets
   in the new buffer
4) Do some external DnD:
   4a) CDE: use dtfile and dtpad
   4b) MSWindows: well, explorer should do. But only file data
                  should work, and I don't know if the test
                  already handles this.

The misc-user-event now also responds as a button-x-event
to the event-* query functions.

The function of a drag is called dragdrop-drop-dispatch
as you can see in droptest.el. From within the function
you can access the actual misc-user-event through the
current-mouse-event variable.

Short description of the object part of a drop misc-user-event:
( TYPE . DATA )
TYPE is either the symbol dragdrop_MIME
     or the symbol dragdrop_URL

DATA is a list of URL strings if TYPE is dragdrop_URL
     if TYPE is dragdrop_MIME DATA is either a string
     which contains the MIME data, or it is a list of
     ( CONTENT-TYPE CONTENT-ENCODING MIME-DATA )
     CONTENT-TYPE is encoded for tm-view (list, first element type,
	rest key.value conses)
     CONTENT-ENCODING is a string
     MIME-DATA is a string

     CONTENT-TYPE and -ENCODING can be directly supplied to mime/viewer-mode.