bug#43470: 27.1; Drag and Drop not working properly in 27.1 on OSX

[Daniel Martín]

Alan Third <alan@idiocy.org> writes:

> IIRC (and I could definitely be wrong here) a simple find/replace
> breaks the ability to handle more than one file being dragged at a
> time, which is why I left it (it used to work fine even though it was
> flagged as deprecated).

You're right. I also misread the FIXME, which mentions this particular
problem. That part of the patch is not correct.

I think we need to use the same constant names as those that are
included in the ns_drag_types array, at least until we implement proper
support for the new pasteboard API. This means that three constant names
should be renamed in nsterm.m.

I've attached a new patch that implements this idea. I've tested the
following drag and drop operations work correctly after the patch is
applied:

- Drag a URL.
- Drag arbitrary text from another application.
- Drag tabular text from another application.
- Drag a couple of files from the OS file manager. It correctly creates
a couple of buffers in Emacs that visit those files.

0001-Use-modern-constant-names-for-the-NS-pasteboard.patch
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