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Re: master 2021835326 2/3: Implement `return-frame' for DND on NS

From: Po Lu
Subject: Re: master 2021835326 2/3: Implement `return-frame' for DND on NS
Date: Thu, 26 Jan 2023 19:43:31 +0800
User-agent: Gnus/5.13 (Gnus v5.13)

YAMAMOTO Mitsuharu <mituharu@math.s.chiba-u.ac.jp> writes:

> Posting ESC KeyDown event seems to work, as long as I tested with
> Emacs 29-based Mac port (in development).

Thank you.  I am not quite sure how to do that, could you please explain

> BTW, I think safe_call/redisplay in -[EmacsView draggingUpdated:] is
> unsafe in some situations.  This method is called from the main thread
> in the context of `select' emulation if the dragging is originated
> from another application.  Because `thread_select' may cause thread
> switching if we have multiple Lisp threads, Lisp evaluation in another
> thread might be in progress while the main thread is waiting for the
> completion of the `select' emulation.

Could you please suggest a fix?

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