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UI-03: shared floating-glass component kit

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Adds GlassPanel (BackdropFilter + translucent fill + subtle border, values
lifted directly from the Stitch exports' own bg-surface/90 backdrop-blur-xl
border-outline-variant/30 treatment), FloatingPill (a GlassPanel shaped as
a capsule around an arbitrary number of labeled stat columns with
dividers), and PulsingLocationMarker (expanding-ring-plus-glow-dot,
matching the exports' pulse-ring keyframes exactly, with a static-dot
fallback when reduced motion is requested). Pure presentation -- every
UI-04/05/06/07 screen composes these rather than reimplementing blur/
border styling per screen.

Adds outlineVariant to ripprColors, needed for the panel border and pill
dividers and not previously wired up by UI-08.

Verified with a throwaway preview entry point (deleted after use, no
consuming screen exists yet) plus 8 new widget tests covering blur/
translucency/border structure, contrast in both themes, arbitrary stat
counts, and the pulsing marker's animation lifecycle and reduced-motion
fallback.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_012Xki7YAcc2TiN2PRZJ2tXr
This commit is contained in:
uhryniuk
2026-08-23 20:22:19 -05:00
parent 10040e6985
commit 24f4e17e81
7 changed files with 494 additions and 2 deletions
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99
lib/src/ui/components/floating_pill.dart Normal file
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/// UI-03: the horizontally-centred, fully-rounded stat summary from the Route Planning
/// export's Distance/Est. Time/Pins header -- a `GlassPanel` shaped as a capsule, laid
/// out with vertical dividers between however many stats it's given (not hardcoded to
/// three, so a screen ticket can use it for two stats or five without a second widget).
library;
import 'package:flutter/material.dart';
import 'glass_panel.dart';
class PillStat {
const PillStat({required this.label, required this.value, this.unit});
final String label;
final String value;
/// Rendered smaller and after [value], matching the export's `12.4<span
/// class="text-sm">km</span>` treatment -- a unit is not part of the number itself.
final String? unit;
}
class FloatingPill extends StatelessWidget {
const FloatingPill({super.key, required this.stats});
final List<PillStat> stats;
@override
Widget build(BuildContext context) {
final colors = Theme.of(context).colorScheme;
return GlassPanel(
borderRadius: const BorderRadius.all(Radius.circular(999)),
padding: const EdgeInsets.symmetric(horizontal: 32, vertical: 16),
child: Row(
mainAxisSize: MainAxisSize.min,
children: [
for (var i = 0; i < stats.length; i++) ...[
if (i > 0)
Padding(
padding: const EdgeInsets.symmetric(horizontal: 16),
child: Container(
width: 1,
height: 32,
color: colors.outlineVariant.withValues(alpha: 0.3),
),
),
_StatColumn(stat: stats[i]),
],
],
),
);
}
}
class _StatColumn extends StatelessWidget {
const _StatColumn({required this.stat});
final PillStat stat;
@override
Widget build(BuildContext context) {
final colors = Theme.of(context).colorScheme;
return Column(
mainAxisSize: MainAxisSize.min,
children: [
Text(
stat.label.toUpperCase(),
style: TextStyle(
fontSize: 10,
letterSpacing: 1.5,
color: colors.onSurfaceVariant,
),
),
const SizedBox(height: 4),
Row(
mainAxisSize: MainAxisSize.min,
crossAxisAlignment: CrossAxisAlignment.baseline,
textBaseline: TextBaseline.alphabetic,
children: [
Text(
stat.value,
style: TextStyle(
fontSize: 20,
fontWeight: FontWeight.w600,
color: colors.primary,
),
),
if (stat.unit != null) ...[
const SizedBox(width: 2),
Text(
stat.unit!,
style: TextStyle(fontSize: 13, color: colors.primary),
),
],
],
),
],
);
}
}

62
lib/src/ui/components/glass_panel.dart Normal file
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/// UI-03: the one blurred-glass surface every floating card, tooltip, and control in
/// the redesign is built on, so `backdrop-blur`/translucency/border styling is written
/// once here rather than reinvented per screen. Pure presentation -- no data-fetching,
/// no business logic.
///
/// Values are lifted directly from the Stitch exports' own glass treatment
/// (`bg-surface/90 backdrop-blur-xl border border-outline-variant/30`), not guessed:
/// see `docs/design/stitch-export/screens/route-planning-dark.html`.
library;
import 'dart:ui';
import 'package:flutter/material.dart';
import '../theme.dart' show ripprRadiusLarge;
class GlassPanel extends StatelessWidget {
const GlassPanel({
super.key,
required this.child,
this.borderRadius = const BorderRadius.all(Radius.circular(ripprRadiusLarge)),
this.padding,
});
final Widget child;
final BorderRadiusGeometry borderRadius;
final EdgeInsetsGeometry? padding;
/// Tailwind's `backdrop-blur-xl`. Strong enough that whatever is behind the panel
/// (the live map, in every real usage) reads as texture, not detail -- the panel's
/// own content is what the eye is meant to land on.
static const double blurSigma = 24.0;
/// `bg-surface/90` -- almost opaque. Enough blur shows through to feel like glass
/// over the map rather than a solid card, without ever risking the panel's own text
/// losing contrast against whatever happens to be moving underneath it.
static const double fillOpacity = 0.9;
/// `border-outline-variant/30` -- a barely-there seam, not a hard edge.
static const double borderOpacity = 0.3;
@override
Widget build(BuildContext context) {
final colors = Theme.of(context).colorScheme;
return ClipRRect(
borderRadius: borderRadius,
child: BackdropFilter(
filter: ImageFilter.blur(sigmaX: blurSigma, sigmaY: blurSigma),
child: DecoratedBox(
decoration: BoxDecoration(
color: colors.surface.withValues(alpha: fillOpacity),
borderRadius: borderRadius,
border: Border.all(
color: colors.outlineVariant.withValues(alpha: borderOpacity),
),
),
child: padding == null ? child : Padding(padding: padding!, child: child),
),
),
);
}
}

109
lib/src/ui/components/pulsing_location_marker.dart Normal file
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/// UI-03: the expanding-ring-plus-glow-dot user-location marker from the Plan/Route
/// Planning exports. Values (sizes, colours, the scale/opacity curve) are lifted from
/// the exports' own `pulse-ring` keyframes, not guessed -- see
/// `docs/design/stitch-export/screens/route-planning-dark.html`.
library;
import 'package:flutter/material.dart';
class PulsingLocationMarker extends StatefulWidget {
const PulsingLocationMarker({super.key});
@override
State<PulsingLocationMarker> createState() => _PulsingLocationMarkerState();
}
class _PulsingLocationMarkerState extends State<PulsingLocationMarker>
with SingleTickerProviderStateMixin {
late final _controller = AnimationController(
vsync: this,
duration: const Duration(seconds: 2),
);
@override
void didChangeDependencies() {
super.didChangeDependencies();
_syncWithReducedMotion();
}
/// A static dot -- the ring never expands -- when the platform has reduced motion
/// enabled, the same accessibility setting `prefers-reduced-motion` maps to on the
/// web this component's design came from.
void _syncWithReducedMotion() {
final reduceMotion = MediaQuery.maybeOf(context)?.disableAnimations ?? false;
if (reduceMotion) {
_controller.stop();
} else if (!_controller.isAnimating) {
_controller.repeat();
}
}
@override
void dispose() {
_controller.dispose();
super.dispose();
}
@override
Widget build(BuildContext context) {
final colors = Theme.of(context).colorScheme;
return SizedBox(
width: 40,
height: 40,
child: AnimatedBuilder(
animation: _controller,
builder: (context, child) {
// The keyframes' own 0%/70%/100% easing: scale 0.8 -> 1.0 and opacity
// 0.8 -> 0, both eased out rather than linear, so the ring visibly slows as
// it fades rather than looking like it's cut off mid-motion.
final t = Curves.easeOut.transform(_controller.value);
final scale = 0.8 + (0.2 * t);
final opacity = 0.8 * (1 - t);
return Stack(
alignment: Alignment.center,
children: [
// The faint, static outer ring -- always present, pulse or no pulse.
Container(
width: 16,
height: 16,
decoration: BoxDecoration(
color: colors.primary.withValues(alpha: 0.3),
shape: BoxShape.circle,
),
),
Transform.scale(
scale: scale,
child: Opacity(
opacity: opacity,
child: Container(
width: 12,
height: 12,
decoration: BoxDecoration(
color: colors.primary,
shape: BoxShape.circle,
),
),
),
),
Container(
width: 8,
height: 8,
decoration: BoxDecoration(
color: colors.primary,
shape: BoxShape.circle,
boxShadow: [
BoxShadow(
color: colors.primary.withValues(alpha: 0.5),
blurRadius: 10,
spreadRadius: 1,
),
],
),
),
],
);
},
),
);
}
}

5
lib/src/ui/theme.dart
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@@ -50,6 +50,11 @@ const ripprColors = ColorScheme.dark(
surfaceContainerHighest: Color(0xFF353534),
onSurfaceVariant: Color(0xFFC1C6D5),
outline: _outline,
// UI-03: the design system's own `outline-variant` token -- a subtler line than
// `outline` itself, for a `GlassPanel`'s 1px border and a `FloatingPill`'s dividers,
// where a full-strength outline colour would read as a hard edge rather than a
// barely-there seam between tonal layers.
outlineVariant: Color(0xFF414753),
error: _danger,
onError: Color(0xFF690005),
);