bug#41343: tab-bar-mode: Close tab on mouse-2 click

[Eli Zaretskii]

> From: Juri Linkov <juri@linkov.net>
> Cc: stefankangas@gmail.com,  41343@debbugs.gnu.org
> Date: Mon, 09 Aug 2021 10:03:28 +0300
> 
> So now I've completely redesigned the event processing on the tab bar.
> With the following patch
> 
> 'down-mouse-1' is bound to 'tab-bar-mouse-select-tab'
> 'down-mouse-2' is bound to 'tab-bar-mouse-close-tab'
> 'down-mouse-3' is bound to 'tab-bar-mouse-context-menu'
> 
> The context menu that pops up on down-mouse-3 was requested in bug#41342.
> Now also it should be possible even to implement drag-drop to move tabs
> with the mouse since they produce normal mouse events that now are accepted
> by the tab bar.

Thanks, this looks much, much better to me.