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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Iosevka Fixed SS16"">Michael:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Iosevka Fixed SS16""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Iosevka Fixed SS16"">Is there a specific problem that absolutely cannot be solved without adding extra properties to Node (or Control)?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Iosevka Fixed SS16""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Iosevka Fixed SS16"">Thanks!<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Iosevka Fixed SS16"">-andy<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Iosevka Fixed SS16""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Iosevka Fixed SS16""><o:p> </o:p></span></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><b><span style="font-size:12.0pt;color:black">From:
</span></b><span style="font-size:12.0pt;color:black">openjfx-dev <openjfx-dev-retn@openjdk.org> on behalf of Michael Strauß <michaelstrau2@gmail.com><br>
<b>Date: </b>Friday, August 18, 2023 at 09:35<br>
<b>To: </b>openjfx-dev <openjfx-dev@openjdk.org><br>
<b>Subject: </b>Focused nodes and focus owners<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt">Scene graph nodes have three focus-related properties:<br>
1. focused<br>
2. focus-within<br>
3. focus-visible<br>
<br>
What might be a bit surprising is that multiple nodes can be focused<br>
at the same time, but only one of those focused nodes can be the<br>
scene's focus owner. The `Scene.focusOwner` property indicates which<br>
of the focused nodes is the current focus owner.<br>
<br>
Even more surprisingly, a node can be _unfocused_ and be the focus<br>
owner at the same time (this can happen when the window is<br>
deactivated).<br>
<br>
>From the perspective of `Node`, there's currently no API to easily<br>
determine whether it is the focus owner, and there's no CSS<br>
pseudo-class that matches a node that is the focus owner.<br>
<br>
We could add two more properties to the `Node` class to support this use case:<br>
4. focus-owner<br>
5. focus-owner-within<br>
<br>
Note that `focus-visible` only matches nodes that are also focus<br>
owners, so there's no need to have a `focus-owner-visible` property.<br>
<br>
The two additional properties would suffice to match any possible<br>
focus state, but it might also be not useful enough to warrant the<br>
additional API surface. What do you think?<o:p></o:p></span></p>
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