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Re: Tabs (on macos)

From: Alan Third
Subject: Re: Tabs (on macos)
Date: Fri, 20 Sep 2019 19:26:36 +0100
User-agent: Mutt/1.12.0 (2019-05-25)

On Tue, Sep 17, 2019 at 11:28:14PM +0300, Juri Linkov wrote:
> > It now builds but emacs crashes on start.  I don't have time to debug
> > it in gdb right now, but I'll look into it and send a proper
> > backtrace.  For now, here's the crash output:
> Meanwhile, could you please answer a quick question:
> Does macOS builds support non-native tool-bar?
> (info "(emacs) Tool Bars") contains this explanation:
>      NS builds consider the tool bar to be a window decoration, and
>   therefore do not display it when a window is undecorated.  *Note
>   (elisp)Frame Parameters::.  On macOS the tool bar is hidden when the
>   frame is put into fullscreen, but can be displayed by moving the mouse
>   pointer to the top of the screen.
> Does this mean that NS builds implement only external tool-bar?
> This might imply the need to use an external tab-bar as well.

NS doesn’t support a non‐native toolbar. I don’t see any reason why a
non‐native tab bar couldn’t be written, although I suppose it may have
to be a completely new implementation.

Cocoa provides a native tab bar, but it’s not programmable, it simply
merges (OS) windows together in one.
Alan Third

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