Give a WinHandler to the idle callback. #1787
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raphlinus
approved these changes
May 19, 2021
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This seems right to me. I'm the one who did the original dyn Any, but I don't think the justification for that was ever very strong (I wanted to loose coupling so druid-shell wouldn't overly specify the higher levels, but I don't see this change really taking away from that).
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I asked about this on zulip and no one replied, so I'm guessing that the reasons for the existing signature of
add_idle_callbackwere lost in the mists of time. It used to be that an idle callback got a&dyn Any, but thatAnyis always just theWinHandler(so,DruidHandlerin alldruidapps). Since&DruidHandlerisn't much use (all the interesting things are&mut), I'm guessing that no one was really using it.