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comparison tests/Dnd/README @ 282:c42ec1d1cded r21-0b39

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Import from CVS: tag r21-0b39
author cvs
date Mon, 13 Aug 2007 10:33:18 +0200
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281:090b52736db2 282:c42ec1d1cded
1 * Sun May 3 1998 Oliver Graf <ograf@fga.de>
2
3 This path contains test code for the new XEmacs
4 Drag'n'Drop code.
5
6 Currently only drags are of interest. The internal
7 functions only work for OffiX. MSWindows and CDE
8 are broken with this patch.
9
10 The OffiX functions in mouse.el also work no longer,
11 because drags are now misc-user-events.
12
13 The misc-user-event now also responds as a button-x-event
14 to the event-* query functions.
15
16 The function of a drag is called dragdrop-drop-dispatch
17 as you can see in droptest.el. From within the function
18 you can access the actual misc-user-event through the
19 current-mouse-event variable.
20
21 dragtest.el works theoretically, but it needs to be
22 adapted to some new scheme fitting the drop code.
23
24 Short description of the object part of a drop misc-user-event:
25 ( TYPE . DATA )
26 TYPE is either the symbol dragdrop_MIME
27 or the symbol dragdrop_URL
28
29 DATA is a list of URL strings if TYPE is dragdrop_URL
30 if TYPE is dragdrop_MIME DATA is either a string
31 which contains the MIME data, or it is a list of
32 ( CONTENT-TYPE CONTENT-ENCODING MIME-DATA )
33
34 For DATA I am thinking of some different scheme:
35 perhaps it would be more efficient to split the
36 MIME data into header and body, make a plist from
37 the header (for easy access), pre-convert the body
38 to 8bit, and also attach the original data.
39 This would make the access easier, but it would
40 require that I do a lot of MIME stuff in C, a thing
41 that tm-mime-view already does for us.