jpmschweitzerandClaude Opus 4.8
757d6f71fa
Add the one bespoke control the schema engine defers to. New SettingsControlContribution routes a WidgetBuilder into a kernel SettingsControlRegistry under a customId; a SettingsFieldKind.custom field names that id, and the renderer draws the registered widget full-width (label on top, no scope tag — the control owns its own apply + scope). The theme-picker extension uses it: an Appearance category whose theme field is custom, backed by AppearanceThemeControl — base-theme chips + a high-contrast toggle that apply live through ThemeController (persisted by theme_persistence). Reuses the shared theme_families helpers. Tests: control registry (register/dup/unregister), the renderer's custom-field path, and the Appearance contribution + live theme apply. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
27 lines
1.1 KiB
Dart
27 lines
1.1 KiB
Dart
import 'package:flutter/widgets.dart';
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/// Holds the bespoke widgets that draw [SettingsFieldKind.custom] fields
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/// (T-452). A subsystem registers a builder under a `customId` (via
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/// `SettingsControlContribution`, routed by the extension manager); the
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/// settings renderer looks it up when it meets a custom field.
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///
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/// Controls register at activation, before any settings modal opens, so this
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/// is a plain registry — no change notification needed.
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class SettingsControlRegistry {
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final Map<String, WidgetBuilder> _byId = <String, WidgetBuilder>{};
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/// Register the [builder] for [customId]. Throws on a duplicate id so a
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/// collision rolls the contributing extension's activation back.
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void register(String customId, WidgetBuilder builder) {
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if (_byId.containsKey(customId)) {
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throw StateError('duplicate settings control id: $customId');
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}
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_byId[customId] = builder;
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}
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void unregister(String customId) => _byId.remove(customId);
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/// The builder for [customId], or null when none is registered.
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WidgetBuilder? builderFor(String customId) => _byId[customId];
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}
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