bug#72003: 29.3; Drag and drop in Emacs 29 on macOS

[Robert Pluim]

>>>>> On Thu, 11 Jul 2024 14:42:21 -0400, Giah De Barag <gdb@crelg.com> said:

    Giah> Thank you for that suggestion. However, there is no error message. It
    Giah> just silently does not work. Search for the string "NOTHING HAPPENS"
    Giah> in my bug report. Also note that rolling back to Emacs 28 or going to
    Giah> a more recent macOS makes drag and drop work.

Ah, so this is Appleʼs fault 😉

    Giah> What other reasons could we think of, to explain why Emacs 29 drag and
    Giah> drop does not work in macOS 12, an OS that is only three years old,
    Giah> still supported and updated, and still widely used?

"Why does Apple change APIs so that they break drag and drop" is
another way of asking that question.

    Giah> macOS 12 | Emacs 28 | works
    Giah> macOS 12 | Emacs 29 | does not work
    Giah> macOS 14 | Emacs 28 | works
    Giah> macOS 14 | Emacs 29 | works

I donʼt have a macOS 12 machine, so I canʼt test. Alan, would you have
any ideas?

Robert
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