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List:       openjdk-openjfx-dev
Subject:    Re: Support :focus-visible CSS pseudoclass
From:       Tom Schindl <tom.schindl () bestsolution ! at>
Date:       2021-06-08 6:55:04
Message-ID: 639d1ca9-beb0-4653-45b1-b5986dc7e6a9 () bestsolution ! at
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Hi,

As an application developer I highly appreciate this built-in CSS support.

We had to roll our own version for focus-visible and focus-within when 
implementing our custom controls and L&F but we would leverage this 
built-in support to remove complexity from our codebase.

Beside Microsofts new L&F many Web-UI-Toolkits use this 
focus-visible-feature (and emulate it while not all browsers support it).

How we use focus-visible:
------------------------
I think focus-visible has a fairly narrow scope so we use it to show
input focus differently depending on the way an element got focused
(mainly mouse-activation vs rest)

How we use focus-within:
------------------------
We use focus-within to visiually indicate the area the focus is 
currently in by changing by lifting or coloring that area.

Tom

Am 08.06.21 um 01:08 schrieb Kevin Rushforth:
> I'd be interested in hearing from application developers as to whether 
> and how they would use such a feature. As with all non-trivial features, 
> we don't want to do it if only one or two developers are asking for it. 
> This seems a reasonably new CSS feature; Firefox just added support in 
> FF 85 released earlier this year and Safari still doesn't. That suggests 
> it might be a bit early to adopt this for JavaFX.
> 
> Also, one thing that isn't clear is whether there would be any user 
> visible change using the standard themes. I presume that the answer is 
> "no", meaning that unless your stylesheets do anything with 
> focus-visible, it will not affect the look and feel of the app. That 
> should be stated explicitly
> 
> I also presume that there would be no application visible changes when 
> using the standard themes, other than the presence of the two new 
> read-only boolean properties?
> 
> -- Kevin
> 
> 
> On 6/7/2021 3:46 PM, Michael Strauß wrote:
>> I have expanded the scope of the proposal to include the :focus-within
>> pseudo-class, which completes the set of focus-related pseudo-classes.
>>
>> The updated text of the proposal can be found in the JBS ticket:
>> https://bugs.openjdk.java.net/browse/JDK-8268225
>>
>> I'm looking forward to comments.
> 
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