Add Field Widget Actions (FWA) support for speech generation using the file_default widget
>>> [!note] Migrated issue
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Reported by: [marcus_johansson](https://www.drupal.org/user/385947)
Related to !1086 !1085
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<p>[Tracker]<br>
<strong>Update Summary: </strong>[One-line status update for stakeholders]<br>
<strong>Short Description: </strong>Add Field Widget Actions (FWA) support for speech generation using the file_default widget.<br>
<strong>Check-in Date: </strong>MM/DD/YYYY<br>
[/Tracker]</p>
<h3 id="summary-problem-motivation">Problem/Motivation</h3>
<p>Speech generation that produces audio files is a common AI use case and fits naturally with file-based fields. Currently, fields using the <code>file_default</code> widget do not provide an in-widget way to trigger AI Automators that generate speech and store the resulting file.<br>
This issue proposes adding Field Widget Actions (FWA) support for speech generation on the <code>file_default</code> widget, using <code>modules/ai_automators/src/Plugin/FieldWidgetAction/Email.php</code> as reference implementation. This allows editors to generate an audio file from text input and store it directly in the file field via the widget UI.<br>
A simple way to test this is to configure an AI Automator that converts text into speech, generates an audio file, and saves the file into the field using the FWA.</p>
<h3 id="summary-proposed-resolution">Proposed resolution</h3>
<ul>
<li>Add a new FWA plugin for the <code>file_default</code> widget that triggers a speech generation automator, modeled after <code>modules/ai_automators/src/Plugin/FieldWidgetAction/Email.php</code>.</li>
<li>Ensure the FWA correctly handles file creation, storage, and attachment to the field widget.</li>
</ul>
<p>- <strong>This issue was created with the help of AI</strong></p>
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