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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Iosevka Fixed SS16"">Dear fellow developers:<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"">Thank you for providing a lively discussion here in the mailing list, and in the PR.<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"">A surprisingly large number of objection was voiced, among them in no particular order (please correct me if I missed anything):<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"">- no need for the traversal policy API, developers have all the tools they need<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Iosevka Fixed SS16"">- rather than providing Parent.traversalPolicy, the whole thing should be delegated to Scene<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Iosevka Fixed SS16"">- no need for custom traversal policies, provide a number of standard policies (e.g. cyclic/logical; or via enum if possible)<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Iosevka Fixed SS16"">- introducing a new category of traversal events (later deemed unnecessary)<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Iosevka Fixed SS16"">- adding two properties to Parent for directional and logical traversal<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Iosevka Fixed SS16"">- desire to be able to configure traversal policy via CSS<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Iosevka Fixed SS16"">- focus traversal methods should be instance methods in the Node class<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"">Also, the discussion reiterated some of the design problems we have in JavaFX, namely<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"">- controls consuming key events that effect no change in the control's state<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Iosevka Fixed SS16"">- interference between controls' key handling and Scene's accelerators<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Iosevka Fixed SS16"">- undetermined priority of event handlers registered by the skin and the application<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"">I still believe there is a value in providing the traversal policy APIs, but given the general sentiment in the feedback, I think the right approach would be to scale down
the proposal to leave only the focus traversal API [0], addressing a single use case of the custom components [1].<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"">I am sad to think that there will be no support for custom traversal policies in JavaFX in the foreseeable future, as it seems highly unlikely that my company will sponsor
a major redesign of the focus subsystem. I hope there is a non-zero chance of the open source community coming together and designing an alternative that satisfies everyone, so maybe not all is lost.<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"">Please let me know what you think of the new proposal.<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>
<p class="p1"><span style="font-size:11.0pt;font-family:"Iosevka Fixed SS16"">[0]
</span><span style="font-size:11.0pt;font-family:"Iosevka Fixed SS16""><a href="https://github.com/andy-goryachev-oracle/Test/blob/main/doc/FocusTraversal/FocusTraversal-v2.md">https://github.com/andy-goryachev-oracle/Test/blob/main/doc/FocusTraversal/FocusTraversal-v2.md</a><o:p></o:p></span></p>
<p class="p1"><span style="font-size:11.0pt;font-family:"Iosevka Fixed SS16"">[1]
</span><span style="font-size:11.0pt;font-family:"Iosevka Fixed SS16""><a href="https://bugs.openjdk.org/browse/JDK-8091673">JDK-8091673</a> Public focus traversal API for use in custom controls<o:p></o:p></span></p>
<p class="p1"><span lang="FR" style="font-size:11.0pt;font-family:"Iosevka Fixed SS16"">[2] Draft PR
</span><span style="font-size:11.0pt;font-family:"Iosevka Fixed SS16""><a href="https://github.com/openjdk/jfx/pull/1604"><span lang="FR">https://github.com/openjdk/jfx/pull/1604</span></a></span><span lang="FR" style="font-size:11.0pt;font-family:"Iosevka Fixed SS16""><o:p></o:p></span></p>
<p class="p1"><span lang="FR" style="font-size:11.0pt;font-family:"Iosevka Fixed SS16""><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="FR" style="font-size:11.0pt;font-family:"Iosevka Fixed SS16""><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="FR" style="font-size:11.0pt;font-family:"Iosevka Fixed SS16""><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="FR" 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 Andy Goryachev <andy.goryachev@oracle.com><br>
<b>Date: </b>Tuesday, September 3, 2024 at 12:33<br>
<b>To: </b>openjfx-dev@openjdk.org <openjfx-dev@openjdk.org><br>
<b>Subject: </b>Proposal: Focus Traversal API<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Iosevka Fixed SS16";color:#212121">Dear fellow developers:</span><span style="font-size:12.0pt"><o:p></o:p></span></p>
<p class="MsoNormal" style="font-variant-caps:normal;orphans:auto;text-align:start;widows:auto;word-spacing:0px">
<span style="font-size:11.0pt;font-family:"Iosevka Fixed SS16";color:#212121"> </span><span style="font-size:12.0pt"><o:p></o:p></span></p>
<p class="MsoNormal" style="font-variant-caps:normal;orphans:auto;text-align:start;widows:auto;word-spacing:0px">
<span style="font-size:11.0pt;font-family:"Iosevka Fixed SS16";color:#212121">I'd like to propose the public focus traversal API:</span><span style="font-size:12.0pt"><o:p></o:p></span></p>
<p class="MsoNormal" style="font-variant-caps:normal;orphans:auto;text-align:start;widows:auto;word-spacing:0px">
<span style="font-size:11.0pt;font-family:"Iosevka Fixed SS16";color:#212121"> </span><span style="font-size:12.0pt"><o:p></o:p></span></p>
<p class="p1" style="margin:0in;font-variant-caps:normal;orphans:auto;text-align:start;widows:auto;word-spacing:0px">
<span style="font-size:11.0pt;font-family:"Iosevka Fixed SS16";color:#212121"><a href="https://github.com/andy-goryachev-oracle/Test/blob/main/doc/FocusTraversal/FocusTraversal.md" title="https://github.com/andy-goryachev-oracle/Test/blob/main/doc/FocusTraversal/FocusTraversal.md"><span style="color:#0078D7">https://github.com/andy-goryachev-oracle/Test/blob/main/doc/<span class="outlook-search-highlight">Focus</span>Traversal/<span class="outlook-search-highlight">Focus</span>Traversal.md</span></a></span><span style="font-size:12.0pt"><o:p></o:p></span></p>
<p class="MsoNormal" style="font-variant-caps:normal;orphans:auto;text-align:start;widows:auto;word-spacing:0px">
<span style="font-size:11.0pt;font-family:"Iosevka Fixed SS16";color:#212121"> </span><span style="font-size:12.0pt"><o:p></o:p></span></p>
<p class="MsoNormal" style="font-variant-caps:normal;orphans:auto;text-align:start;widows:auto;word-spacing:0px">
<span style="font-size:11.0pt;font-family:"Iosevka Fixed SS16";color:#212121">Draft PR:</span><span style="font-size:12.0pt"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Iosevka Fixed SS16";color:#212121"> </span><span style="font-size:12.0pt"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Iosevka Fixed SS16";color:#212121"><a href="https://github.com/openjdk/jfx/pull/1555">https://github.com/openjdk/jfx/pull/1555</a></span><span style="font-size:12.0pt"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Iosevka Fixed SS16";color:#212121"> </span><span style="font-size:12.0pt"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Iosevka Fixed SS16";color:#212121">Your comments and suggestions will be warmly accepted and appreciated.</span><span style="font-size:12.0pt"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Iosevka Fixed SS16";color:#212121"> </span><span style="font-size:12.0pt"><o:p></o:p></span></p>
<p class="MsoNormal" style="font-variant-caps:normal;orphans:auto;text-align:start;widows:auto;word-spacing:0px">
<span style="font-size:11.0pt;font-family:"Iosevka Fixed SS16";color:#212121">Thank you</span><span style="font-size:12.0pt"><o:p></o:p></span></p>
<p class="MsoNormal" style="font-variant-caps:normal;orphans:auto;text-align:start;widows:auto;word-spacing:0px">
<span style="font-size:11.0pt;font-family:"Iosevka Fixed SS16";color:#212121"> </span><span style="font-size:12.0pt"><o:p></o:p></span></p>
<p class="MsoNormal" style="font-variant-caps:normal;orphans:auto;text-align:start;widows:auto;word-spacing:0px">
<span style="font-size:11.0pt;font-family:"Iosevka Fixed SS16";color:#212121">-andy</span><span style="font-size:12.0pt"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Iosevka Fixed SS16""> </span><span style="font-size:12.0pt"><o:p></o:p></span></p>
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