[Bug 32130] Gecko and Mono downloaders should show the file size and allow user to abort

[wine-bugs at winehq.org]

http://bugs.winehq.org/show_bug.cgi?id=32130

--- Comment #1 from Vincent Povirk <madewokherd at gmail.com> 2012-11-12 16:28:33 CST ---
Created attachment 42484
  --> http://bugs.winehq.org/attachment.cgi?id=42484
patch using IBindStatusCallback to cancel

I tried writing a patch to allow an abort during the download, but I'm running
into the problem that there is no way to immediately abort the
UrlDownloadToFile call. (We can abort it the next time there's progress, but
that won't work if the download stalls and the user clicks Cancel.)

I think that the way this works now, we have to abort the download/install
thread cooperatively or add some complicated synchronization. Otherwise,
there's a race between disabling the Cancel button after the download finishes
and getting the notification of the user clicking Cancel on the main thread.

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