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Re: NS port horizontal scroll-bars

From: Anders Lindgren
Subject: Re: NS port horizontal scroll-bars
Date: Sun, 24 Apr 2016 19:28:58 +0200


I think you simply haven't mapped the horizontal events to anything. ns-win.el contains the following:

(global-set-key [vertical-scroll-bar down-mouse-1] 'ns-handle-scroll-bar-event)
(global-unset-key [vertical-scroll-bar mouse-1])
(global-unset-key [vertical-scroll-bar drag-mouse-1])

If I do the same with `horizontal-scroll-bar' I can drag it around, and Emacs react to it. (Unfortunately, it then scroll the window vertically rather than horizontally, but that just a technicality :)

Also, if you evaluate (read-key-sequence "Click on something: ") and either click on the empty space next to the scroll bar or drag it, it will return events with the type `horizontal-scroll-bar'.

Thanks for starting to work on the NS port!

    -- Anders

On Sun, Apr 24, 2016 at 6:01 PM, Alan Third <address@hidden> wrote:
I've been trying to complete the horizontal scroll-bars implementation
in the NS port and have run into a bit of a problem I can't work out.

They display correctly, and when you click on them they, I think, send
a correctly formatted emacs_event, but nothing happens. Vertical
scroll-bars work as expected.

Have I missed somewhere where I need to enable the horizontal
scroll-bar events or something? Any pointers would be appreciated.

I've attached a patch containing what I've done so far.
Alan Third

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