refactor: replace SlideDrawer with ResponsiveDrawerLayout for improved responsiveness
- Updated ChatPage and ChatsDrawer to utilize ResponsiveDrawerLayout instead of SlideDrawer, enhancing the drawer's adaptability across devices. - Removed the SlideDrawer implementation, streamlining the codebase and improving maintainability. - Adjusted drawer opening and closing logic to align with the new layout structure, ensuring a smoother user experience on both mobile and tablet devices.
This commit is contained in:
cogwheel0
327
lib/shared/widgets/responsive_drawer_layout.dart
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327
lib/shared/widgets/responsive_drawer_layout.dart
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import 'package:flutter/material.dart';
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import 'package:flutter/services.dart';
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import 'dart:ui' as ui;
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import '../../shared/theme/theme_extensions.dart';
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/// A responsive layout that shows a persistent drawer on tablets (side-by-side)
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/// and an overlay drawer on mobile devices.
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///
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/// On tablets (shortestSide >= 600), the drawer is always visible alongside
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/// the content. On mobile, it behaves like a standard slide drawer.
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class ResponsiveDrawerLayout extends StatefulWidget {
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final Widget child;
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final Widget drawer;
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// Mobile-specific configuration
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final double maxFraction; // 0..1 of screen width for mobile drawer
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final double edgeFraction; // 0..1 active edge width for open gesture
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final double settleFraction; // threshold to settle open on release
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final Duration duration;
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final Curve curve;
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final Color? scrimColor;
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final bool pushContent;
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final double contentScaleDelta;
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final double contentBlurSigma;
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final VoidCallback? onOpenStart;
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// Tablet-specific configuration
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final double tabletDrawerWidth; // Fixed width for tablet drawer
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const ResponsiveDrawerLayout({
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super.key,
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required this.child,
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required this.drawer,
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this.maxFraction = 0.84,
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this.edgeFraction = 0.5,
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this.settleFraction = 0.12,
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this.duration = const Duration(milliseconds: 180),
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this.curve = Curves.fastOutSlowIn,
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this.scrimColor,
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this.pushContent = true,
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this.contentScaleDelta = 0.02,
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this.contentBlurSigma = 2.0,
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this.onOpenStart,
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this.tabletDrawerWidth = 320.0,
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});
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static ResponsiveDrawerLayoutState? of(BuildContext context) =>
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context.findAncestorStateOfType<ResponsiveDrawerLayoutState>();
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@override
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State<ResponsiveDrawerLayout> createState() => ResponsiveDrawerLayoutState();
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}
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class ResponsiveDrawerLayoutState extends State<ResponsiveDrawerLayout>
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with SingleTickerProviderStateMixin {
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late final AnimationController _controller = AnimationController(
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vsync: this,
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duration: widget.duration,
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value: 0.0,
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);
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bool _isTablet(BuildContext context) {
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final size = MediaQuery.of(context).size;
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return size.shortestSide >= 600;
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}
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double get _panelWidth =>
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(MediaQuery.of(context).size.width * widget.maxFraction).clamp(
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280.0,
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520.0,
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);
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double get _edgeWidth =>
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MediaQuery.of(context).size.width * widget.edgeFraction;
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bool get isOpen => _controller.value == 1.0;
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Future<void> _animateTo(
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double target, {
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double velocity = 0.0,
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bool? easeOut,
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}) async {
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final current = _controller.value;
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final distance = (current - target).abs().clamp(0.0, 1.0);
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final baseMs = widget.duration.inMilliseconds;
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final normSpeed = (velocity.abs() / (_panelWidth + 0.001)).clamp(0.0, 4.0);
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final ms = (baseMs * distance / (1.0 + 1.5 * normSpeed))
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.clamp(90, baseMs)
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.round();
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final bool useEaseOut = easeOut ?? (target > current);
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final curve = useEaseOut
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? (normSpeed > 0.5 ? Curves.linearToEaseOut : Curves.easeOutCubic)
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: (normSpeed > 0.5 ? Curves.easeInToLinear : Curves.easeInCubic);
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await _controller.animateTo(
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target,
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duration: Duration(milliseconds: ms),
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curve: curve,
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);
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}
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void open({double velocity = 0.0}) {
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// Only animate on mobile; on tablet, drawer is always visible
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if (_isTablet(context)) return;
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try {
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widget.onOpenStart?.call();
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} catch (_) {}
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_dismissKeyboard();
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_animateTo(1.0, velocity: velocity);
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}
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void close({double velocity = 0.0}) {
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// Only animate on mobile; on tablet, drawer is always visible
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if (_isTablet(context)) return;
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_animateTo(0.0, velocity: velocity, easeOut: true);
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}
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void toggle() {
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// Only toggle on mobile; on tablet, drawer is always visible
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if (_isTablet(context)) return;
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isOpen ? close() : open();
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}
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void _dismissKeyboard() {
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try {
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FocusManager.instance.primaryFocus?.unfocus();
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SystemChannels.textInput.invokeMethod('TextInput.hide');
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} catch (_) {}
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}
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double _startValue = 0.0;
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void _onDragStart(DragStartDetails d) {
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if (_isTablet(context)) return;
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if (_controller.value <= 0.001) {
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try {
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widget.onOpenStart?.call();
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} catch (_) {}
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_dismissKeyboard();
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}
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_startValue = _controller.value;
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}
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void _onDragUpdate(DragUpdateDetails d) {
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if (_isTablet(context)) return;
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final delta = d.primaryDelta ?? 0.0;
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final next = (_startValue + delta / _panelWidth).clamp(0.0, 1.0);
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_controller.value = next;
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_startValue = next;
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}
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void _onDragEnd(DragEndDetails d) {
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if (_isTablet(context)) return;
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final vx = d.primaryVelocity ?? 0.0;
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final vMag = vx.abs();
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if (vMag > 300.0) {
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if (vx > 0) {
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open(velocity: vMag);
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} else {
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close(velocity: vMag);
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}
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return;
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}
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if (_controller.value >= widget.settleFraction) {
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open(velocity: vMag);
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} else {
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close(velocity: vMag);
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}
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}
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@override
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Widget build(BuildContext context) {
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final theme = context.conduitTheme;
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final scrim = widget.scrimColor ?? context.colorTokens.overlayStrong;
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final isTablet = _isTablet(context);
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if (isTablet) {
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// Tablet layout: persistent side-by-side
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return _buildTabletLayout(theme);
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} else {
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// Mobile layout: overlay drawer
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return _buildMobileLayout(theme, scrim);
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}
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}
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Widget _buildTabletLayout(ConduitThemeExtension theme) {
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return Row(
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children: [
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// Persistent drawer
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Container(
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width: widget.tabletDrawerWidth,
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decoration: BoxDecoration(
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color: theme.surfaceBackground,
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border: Border(
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right: BorderSide(color: theme.dividerColor, width: 1),
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),
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),
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child: widget.drawer,
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),
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// Content
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Expanded(child: widget.child),
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],
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);
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}
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Widget _buildMobileLayout(ConduitThemeExtension theme, Color scrim) {
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return Stack(
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children: [
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// Content (optionally pushed by the drawer)
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Positioned.fill(
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child: AnimatedBuilder(
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animation: _controller,
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builder: (context, _) {
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final t = _controller.value;
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final dx = (widget.pushContent ? _panelWidth * t : 0.0)
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.roundToDouble();
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final scale =
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1.0 -
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(widget.pushContent
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? (widget.contentScaleDelta.clamp(0.0, 0.2) * t)
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: 0.0);
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final blurSigma =
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(widget.pushContent
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? (widget.contentBlurSigma.clamp(0.0, 8.0) * t)
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: 0.0)
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.toDouble();
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Widget content = widget.child;
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if (blurSigma > 0.0) {
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content = ImageFiltered(
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imageFilter: ui.ImageFilter.blur(
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sigmaX: blurSigma,
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sigmaY: blurSigma,
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),
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child: content,
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);
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}
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content = Transform.scale(
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scale: scale,
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alignment: Alignment.centerLeft,
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child: content,
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);
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content = Transform.translate(
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offset: Offset(dx, 0),
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child: content,
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);
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return content;
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},
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),
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),
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// Edge gesture region to open
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Positioned(
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left: 0,
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top: 0,
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bottom: 0,
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width: _edgeWidth,
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child: GestureDetector(
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behavior: HitTestBehavior.translucent,
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onHorizontalDragStart: _onDragStart,
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onHorizontalDragUpdate: _onDragUpdate,
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onHorizontalDragEnd: _onDragEnd,
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),
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),
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// Scrim + panel when animating or open
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AnimatedBuilder(
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animation: _controller,
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builder: (context, _) {
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final t = _controller.value;
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final ignoring = t == 0.0;
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return IgnorePointer(
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ignoring: ignoring,
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child: Stack(
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children: [
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// Scrim
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Positioned.fill(
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child: GestureDetector(
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behavior: HitTestBehavior.opaque,
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onTap: close,
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onHorizontalDragStart: _onDragStart,
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onHorizontalDragUpdate: _onDragUpdate,
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onHorizontalDragEnd: _onDragEnd,
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child: ColoredBox(
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color: scrim.withValues(alpha: 0.6 * t),
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),
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),
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),
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// Panel (capture horizontal drags to close)
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Positioned(
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left: -_panelWidth * (1.0 - t),
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top: 0,
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bottom: 0,
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width: _panelWidth,
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child: GestureDetector(
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behavior: HitTestBehavior.translucent,
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onHorizontalDragStart: _onDragStart,
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onHorizontalDragUpdate: _onDragUpdate,
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onHorizontalDragEnd: _onDragEnd,
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child: RepaintBoundary(
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child: Material(
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color: theme.surfaceBackground,
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elevation: 8,
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child: widget.drawer,
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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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),
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],
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);
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}
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@override
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void dispose() {
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_controller.dispose();
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super.dispose();
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}
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}
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