113457 - Can't drag and drop links onto ICQ

Status: RESOLVED INVALID

(Core :: DOM: Copy & Paste and Drag & Drop, defect)

Description

[Nathan Strom]

I'm currently using Moz 0.9.6 release (2001112009) under WinNT. With NS4x, you
can drag links (or the little page/bookmark icon from the nav toolbar) onto a
name in the ICQ window to send them that URL; this doesn't work in Mozilla.

I'm not sure if this is a Mozilla problem or an ICQ problem -- I don't know how
drag and drop works between apps on a low-level basis.

I looked through the drag and drop bugs, but didn't see any that dealt with
this. Sorry if this bug's a DUP.

Comment 1

[xyzzy]

I couldn't do this with build 2001112903 on Windows 98.  Confirming, and marking
4xp based on reporter's comments.

Similar issue in bug 31343, but doesn't use drag and drop mechanism.

Comment 2

[Terri Preston]

qa contact -> pmac

Comment 3

[slawek]

same problem with Win 98 and WinXP

Comment 4

[Adrian Buckley]

Can someone with ICQ download the latest nightly build - the patch for bug
106708 has probably fixed this, but I don't use ICQ so I can't be sure.

Comment 5

[Brian Rogers]

It still does not work.  Win2k, build 2002111308, ICQ 2002a build #3728.
But I can now drop links into IE5.  I can drag links from IE to Mozilla.
Netscape 4 to ICQ works.
IE to ICQ does not.
Netscape 4 to Mozilla works.
Mozilla to Netscape 4 sometimes results in a search for a string full of %3f's
and other times I wind up with the correct URL plus one of those unknown
character symbols, and the the document's title.  The page loads correctly
except for relative links.

Next, something strange.  From Netscape 4 to IE does not work, but from Netscape
4 to IE's favorites menu does.  All browsers, Netscape 4 included, are capable
of dragging links to the desktop or a folder to make a shortcut file, and this
is probably why Netscape 4 can still drag into the IE.

My guess is that either NS4's D&D format is non-standard, and ICQ expects this
format, or there's some extra communication going on between Netscape 4 and ICQ.
 The fact that D&D between Netscape 4 and the other two browsers is a bit
glitchy seems to indicate the first situation.

Comment 6

[Adrian Buckley]

A bit more information is required - does ICQ refuse to allow Drag-n-Drop at all
(i.e. shows the "DENIED" cursor) or does it allow the Drag-N-Drop and then fail
to load the URL correctly?

If ICQ does not allow Drag-n-Drop at all, I'd suspect it's an ICQ bug rather
than a Mozilla bug:

1) The fact that IE doesn't work indicates that it doesn't handle the standard
CFSTR_SHELLURL format for URL Drag-n-Drop.
2) The only D-N-D format that NS4 sends that Mozilla doesn't is called "Netscape
Bookmark" which (I assume) is obsolete. Incidentally, this would also explain
why NS4 ->IE doesn't work, but NS4 -> IE Favorites does: IE is using the
"Netscape Bookmark" format to import NS bookmarks.

If ICQ allows the Drag-N-Drop and then fails to load the URL correctly it might
be due to all the extra formats Mozilla sends, including Unicode text and HTML
fragments.

P.S.
Mozilla -> Netscape 4 is bug 71786 - which I'm currently looking at!

Comment 7

[Brian Rogers]

ICQ gave the denied cursor when dragging from Mozilla or IE.  There was no
instance where it accepted the drop but then didn't handle it correctly.
And I forgot to say that dragging from IE's favorites menu or dragging a URL
shortcut from the desktop to ICQ works.

Comment 8

[Adrian Buckley]

> And I forgot to say that dragging from IE's favorites menu or dragging a URL
> shortcut from the desktop to ICQ works.

That's because Favorites and URL shortcuts are .url files CONTAINING url data,
rather than BEING a url (which is a subtle but distinct difference).

The Denied cursor for both IE and Mozilla indicates that ICQ doesn't support
standard Windows Drag-n-Drop formats (CFSTR_SHELLURL and CFSTR_INETURL).
This is therefore an ICQ problem, not a Mozilla problem.

Unless a Mozilla developer wants to resurrect the Netscape Bookmark format, I'm
marking this as INVALID.