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[whatwg] Drag-and-drop feedback

From: Roland Steiner <rolandsteiner@google.com>
Date: Fri, 5 Feb 2010 16:34:27 +0900
Message-ID: <ee6bf5be1002042334l19c312cbm565e97f40f6311a0@mail.gmail.com>
Since I am currently in the process of fixing bugs in this area for Chrome,
there are 2 things I'm wondering about:

.) whether "Text" and "URL" should be part of the return value of "types"
(probably not, according to Ian's comment). However, since "text/uri-list"
may in fact not contain a valid URL, the presence/absence of "URL" in types
could be useful. I.e., it could indicate whether getData("URL") will return
something useful.

.) Judging from the example in
https://developer.mozilla.org/En/DragDrop/Drag_Operations#drop , Firefox
seems to use only LF for line feeds within text/uri-list, while RFC 2483
calls for CR-LF for all "text/*" formats, including "text/uri-list", as does
the HTML5 spec in the section on the drag-and-drop processing model.
Since the UA has to parse "text/uri-list" for the return value of "URL", I
wonder whether both should be accepted (break on LF, filter out any CR). The
other problem here is that WebKit/Safari and Chromium convert files to file
URLs to return for "text/uri-list"/"URL". Is there a consensus how this
difference should be best handled (or is this just a bug in FF)?



On Thu, Feb 4, 2010 at 11:29 AM, Ian Hickson <ian at hixie.ch> wrote:

> Webkit and Firefox are case-sensitive. IE only does "TEXT" and "URL", but
> case-insensitively (at least for Text, I didn't test URL). Chrome is
> case-insensitive for everything.
> Tough call. I guess we'll go with just converting everything to lowercase,
> so that it's case-insensitive.
> BTW I noticed Chrome includes "Text" and "URL" in the .types list. That's
> incorrect according to the spec.
> --
> Ian Hickson               U+1047E                )\._.,--....,'``.    fL
> http://ln.hixie.ch/       U+263A                /,   _.. \   _\  ;`._ ,.
> Things that are impossible just take longer.   `._.-(,_..'--(,_..'`-.;.'
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