Re: js-info polishing

[Per Bothner]

On 4/30/21 4:06 AM, Per Bothner wrote:
> On 4/29/21 9:40 AM, Gavin Smith wrote:
> > Another problem: Navigate to
> >
> > https://per.bothner.com/tmp/Kawa-txjs-plain/index.html
> >
> > type "i" then "constant-fold", select the option in the menu, then press  
> > Return.
> >
> > Then the page
> >
> > https://per.bothner.com/tmp/Kawa-txjs-plain/Application-and-Arguments-Lists.html#index-constant_002dfold
> >
> > is correctly loaded, but the side bar menu is completely expanded, and scrolled


I checked in a fix for this, and updated 
https://per.bothner.com/tmp/Kawa-txjs-plain/index.html

It was slightly complicated.  When a child page is asked to "scroll-to" a link, 
it checks if the
requested link is a section element.  If  not it looks for the closest outer 
sectioning element
(an elements whose class contains chapter/section/etc).  Then it sends a 
message with the section
element's id back-to the top-level, which uses that to update the sidebar.
--
        --Per Bothner
per@bothner.com   http://per.bothner.com/