7ff4fda2a3
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Studio follows the platform rename: product branding F∆I -> Ch∆In in UI strings, command examples fai -> chain, and — critically — the spawned hub binary path ~/.fai/bin/fai -> ~/.fai/bin/chain so Studio launches the renamed binary. The fai_* Dart identifiers (FaiLog, widget files, the generated SDK) stay = vendor/internal namespace. flutter analyze: no issues. Signed-off-by: flemming-it <stefan.a.flemming@googlemail.com>
110 lines
3.6 KiB
Dart
110 lines
3.6 KiB
Dart
// FaiEmptyState — gracious empty / loading / error placeholder.
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// Replaces "(no data)" strings with one tone, one icon, one tip.
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//
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// The blank surface is where an app most easily feels unfinished,
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// so this state is deliberately *designed*: the Ch∆In delta (∆)
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// sits as a soft watermark behind the icon badge, the badge
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// carries a whisper of elevation, and the copy breathes. The
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// result reads "nothing here yet, on purpose" rather than
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// "something is broken".
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import 'package:flutter/material.dart';
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import '../theme/tokens.dart';
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import 'fai_delta_mark.dart';
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class FaiEmptyState extends StatelessWidget {
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final IconData icon;
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final String title;
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final String? hint;
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final Widget? action;
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/// Icon tone. Defaults to muted; set to [Theme.colorScheme.error]
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/// for connection-failure variants.
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final Color? iconColor;
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const FaiEmptyState({
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super.key,
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required this.icon,
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required this.title,
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this.hint,
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this.action,
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this.iconColor,
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});
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@override
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Widget build(BuildContext context) {
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final theme = Theme.of(context);
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final color = iconColor ?? theme.colorScheme.onSurfaceVariant;
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return Center(
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child: ConstrainedBox(
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constraints: const BoxConstraints(maxWidth: 440),
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child: Padding(
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padding: const EdgeInsets.all(FaiSpace.xxl),
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child: Column(
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mainAxisAlignment: MainAxisAlignment.center,
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mainAxisSize: MainAxisSize.min,
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children: [
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// Brand hero: an oversized, low-opacity ∆ watermark
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// anchors the composition while the contextual icon
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// badge sits crisply on top — so every empty surface
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// still carries the Ch∆In signature, never a bare icon.
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SizedBox(
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width: 112,
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height: 112,
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child: Stack(
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alignment: Alignment.center,
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children: [
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Opacity(
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opacity: 0.10,
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child: FaiDeltaMark(
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color: theme.colorScheme.primary,
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size: 112,
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),
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),
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Container(
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width: 60,
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height: 60,
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decoration: BoxDecoration(
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color: theme.colorScheme.surfaceContainerHigh,
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shape: BoxShape.circle,
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border: Border.all(
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color: color.withValues(alpha: 0.18),
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),
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boxShadow: FaiElevation.low(theme.brightness),
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),
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child: Icon(icon, size: 26, color: color),
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),
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],
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),
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),
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const SizedBox(height: FaiSpace.xl),
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Text(
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title,
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textAlign: TextAlign.center,
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style: theme.textTheme.titleMedium?.copyWith(
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fontWeight: FontWeight.w600,
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),
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),
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if (hint != null) ...[
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const SizedBox(height: FaiSpace.sm),
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Text(
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hint!,
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textAlign: TextAlign.center,
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style: theme.textTheme.bodyMedium?.copyWith(
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color: theme.colorScheme.onSurfaceVariant,
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height: 1.5,
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),
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),
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],
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if (action != null) ...[
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const SizedBox(height: FaiSpace.xl),
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action!,
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],
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],
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),
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),
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),
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);
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}
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}
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