RESOLVED WONTFIX 181190
[Attachment Support] Introduce a client object for receiving promised blob information in the UI process 
https://bugs.webkit.org/show_bug.cgi?id=181190
Summary [Attachment Support] Introduce a client object for receiving promised blob in...
Wenson Hsieh
Reported 2017-12-29 15:38:27 PST
More work towards async drag and drop support for blobs on iOS/macOS.
Attachments
Depends on https://bugs.webkit.org/show_bug.cgi?id=181189 (22.86 KB, patch)
2017-12-29 18:49 PST, Wenson Hsieh 		no flags
DetailsFormatted DiffDiff
v2 (blocked by https://bugs.webkit.org/show_bug.cgi?id=181189) (23.09 KB, patch)
2018-01-02 16:49 PST, Wenson Hsieh 		no flags
DetailsFormatted DiffDiff
Show Obsolete (1) View All Add attachment proposed patch, testcase, etc.
Wenson Hsieh
Comment 1 2017-12-29 18:49:20 PST
Created attachment 330261 [details] Depends on https://bugs.webkit.org/show_bug.cgi?id=181189
Wenson Hsieh
Comment 2 2018-01-02 16:49:20 PST
Created attachment 330352 [details] v2 (blocked by https://bugs.webkit.org/show_bug.cgi?id=181189)
Wenson Hsieh
Comment 3 2018-01-02 22:39:02 PST
On further investigation, I don't think it's possible to implement attachment dragging support through this mechanism, given that there's no way on iOS to tell when the destination app is finished accepting data on drop. As such, we can't cache any information any information in the UI process because it's not possible to know when it's safe to clean up the cached data. I need to rethink this...
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