518 lines
18 KiB
Dart
518 lines
18 KiB
Dart
import 'dart:async';
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import 'package:audio_service/audio_service.dart';
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import 'package:flutter/material.dart';
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import 'package:freezer/settings.dart';
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import 'package:freezer/translations.i18n.dart';
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import 'package:rxdart/rxdart.dart';
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import '../api/player.dart';
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import 'cached_image.dart';
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class FancyScaffold extends StatefulWidget {
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final Widget bottomPanel;
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final double bottomPanelHeight;
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final Widget expandedPanel;
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final Widget? bottomNavigationBar;
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final Widget? drawer;
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final Widget? bodyDrawer;
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final Widget body;
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final void Function(AnimationStatus)? onAnimationStatusChange;
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const FancyScaffold({
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required this.bottomPanel,
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required this.bottomPanelHeight,
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required this.expandedPanel,
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required this.body,
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this.onAnimationStatusChange,
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this.bottomNavigationBar,
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this.bodyDrawer,
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this.drawer,
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super.key,
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});
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static FancyScaffoldState? of(BuildContext context) =>
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context.findAncestorStateOfType<FancyScaffoldState>();
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@override
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FancyScaffoldState createState() => FancyScaffoldState();
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}
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class FancyScaffoldState extends State<FancyScaffold>
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with TickerProviderStateMixin {
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// goes from 0 to 1 (double)
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// 0 = preview, 1 = expanded
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late final AnimationController dragController;
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final statusNotifier =
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ValueNotifier<AnimationStatus>(AnimationStatus.dismissed);
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@override
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void initState() {
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dragController = AnimationController(
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vsync: this, duration: const Duration(milliseconds: 500));
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dragController.addStatusListener((status) => statusNotifier.value = status);
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statusNotifier.addListener(
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() => widget.onAnimationStatusChange?.call(statusNotifier.value));
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super.initState();
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}
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@override
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void dispose() {
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dragController.dispose();
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super.dispose();
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}
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@override
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Widget build(BuildContext context) {
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final systemPadding = MediaQuery.of(context).viewPadding;
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final defaultBottomPadding =
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(widget.bottomNavigationBar == null ? 0 : 80.0) + systemPadding.bottom;
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final screenHeight = MediaQuery.of(context).size.height;
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final sizeAnimation = Tween<double>(
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begin: widget.bottomPanelHeight / MediaQuery.of(context).size.height,
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end: 1.0,
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).animate(dragController);
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return WillPopScope(
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onWillPop: () {
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if (statusNotifier.value == AnimationStatus.completed ||
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statusNotifier.value == AnimationStatus.reverse) {
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dragController.fling(velocity: -1.0);
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return Future.value(false);
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}
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return Future.value(true);
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},
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child: Stack(
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children: [
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Positioned.fill(
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child: Scaffold(
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body: widget.bodyDrawer != null
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? Row(children: [
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widget.bodyDrawer!,
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Expanded(child: widget.body)
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])
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: widget.body,
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drawer: widget.drawer,
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bottomNavigationBar: Column(
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mainAxisSize: MainAxisSize.min,
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children: [
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SizedBox(height: widget.bottomPanelHeight),
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if (widget.bottomNavigationBar != null)
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SizeTransition(
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axisAlignment: -1.0,
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sizeFactor:
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Tween(begin: 1.0, end: 0.0).animate(sizeAnimation),
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child: widget.bottomNavigationBar,
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),
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],
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),
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),
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),
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Positioned(
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bottom: 0,
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left: 0,
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right: 0,
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child: AnimatedBuilder(
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animation: sizeAnimation,
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builder: (context, child) {
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final x = 1.0 - sizeAnimation.value;
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return Padding(
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padding: EdgeInsets.only(
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bottom: (defaultBottomPadding /*+ 8.0*/) * x,
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//right: 8.0 * x,
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//left: 8.0 * x,
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),
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child: child,
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);
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},
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child: ValueListenableBuilder(
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valueListenable: statusNotifier,
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builder: (context, state, child) {
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return GestureDetector(
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onVerticalDragEnd: _onVerticalDragEnd,
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onVerticalDragUpdate: _onVerticalDragUpdate,
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child: child,
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);
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},
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child: SizeTransition(
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sizeFactor: sizeAnimation,
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axisAlignment: -1.0,
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axis: Axis.vertical,
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child: SizedBox(
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height: screenHeight,
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width: MediaQuery.of(context).size.width,
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child: ValueListenableBuilder(
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valueListenable: statusNotifier,
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builder: (context, state, _) => Stack(
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children: [
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if (state != AnimationStatus.dismissed)
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Positioned.fill(
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key: const Key('player_screen'),
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child: widget.expandedPanel,
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),
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if (state != AnimationStatus.completed)
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Positioned(
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top: 0,
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right: 0,
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left: 0,
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key: const Key('player_bar'),
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child: FadeTransition(
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opacity: Tween(begin: 1.0, end: 0.0)
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.animate(dragController),
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child: SizedBox(
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height: widget.bottomPanelHeight,
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child: widget.bottomPanel),
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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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}
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void _onVerticalDragUpdate(DragUpdateDetails details) {
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dragController.value -=
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details.delta.dy / MediaQuery.of(context).size.height;
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}
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void _onVerticalDragEnd(DragEndDetails details) {
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// snap widget to size
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// this should be also handled by drag velocity and not only with bare size.
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const double minFlingVelocity = 365.0;
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if (details.velocity.pixelsPerSecond.dy.abs() > minFlingVelocity) {
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dragController.fling(
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velocity: -details.velocity.pixelsPerSecond.dy /
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MediaQuery.of(context).size.height);
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return;
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}
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dragController.fling(velocity: dragController.value > 0.5 ? 1.0 : -1.0);
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}
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}
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class PlayerBar extends StatefulWidget {
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final VoidCallback? onTap;
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final bool shouldHaveHero;
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final Color? backgroundColor;
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final FocusNode? focusNode;
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const PlayerBar({
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Key? key,
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this.onTap,
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this.shouldHaveHero = true,
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this.backgroundColor,
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this.focusNode,
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}) : super(key: key);
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@override
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State<PlayerBar> createState() => _PlayerBarState();
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}
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class _PlayerBarState extends State<PlayerBar> {
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final double iconSize = 28;
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late StreamSubscription mediaItemSub;
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late bool _isNothingPlaying = audioHandler.mediaItem.value == null;
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double parsePosition(Duration position) {
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if (audioHandler.mediaItem.value == null) return 0.0;
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if (audioHandler.mediaItem.value!.duration!.inSeconds == 0) {
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return 0.0; //Division by 0
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}
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return position.inSeconds /
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audioHandler.mediaItem.value!.duration!.inSeconds;
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}
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@override
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void initState() {
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mediaItemSub = audioHandler.mediaItem.listen((playingItem) {
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if ((playingItem == null && !_isNothingPlaying) ||
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(playingItem != null && _isNothingPlaying)) {
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setState(() => _isNothingPlaying = playingItem == null);
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}
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});
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super.initState();
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}
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Color get backgroundColor =>
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widget.backgroundColor ??
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Theme.of(context).navigationBarTheme.backgroundColor ??
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Theme.of(context).colorScheme.surface;
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@override
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void dispose() {
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mediaItemSub.cancel();
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super.dispose();
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}
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bool _gestureRegistered = false;
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@override
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Widget build(BuildContext context) {
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return SizedBox(
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height: 68.0,
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child: _isNothingPlaying
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? null
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: GestureDetector(
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onHorizontalDragUpdate: (details) async {
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if (_gestureRegistered) return;
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const double sensitivity = 12.69;
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//Right swipe
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_gestureRegistered = true;
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if (details.delta.dx > sensitivity) {
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await audioHandler.skipToPrevious();
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}
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//Left
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if (details.delta.dx < -sensitivity) {
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await audioHandler.skipToNext();
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}
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_gestureRegistered = false;
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return;
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},
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child: Column(mainAxisSize: MainAxisSize.min, children: <Widget>[
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Expanded(
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child: StreamBuilder<MediaItem?>(
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stream: audioHandler.mediaItem,
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initialData: audioHandler.mediaItem.valueOrNull,
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builder: (context, snapshot) {
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if (!snapshot.hasData) return const SizedBox();
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final currentMediaItem = snapshot.data!;
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final image = CachedImage(
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width: 50,
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height: 50,
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url: currentMediaItem.extras!['thumb'] ??
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currentMediaItem.artUri.toString(),
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);
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final leadingWidget = widget.shouldHaveHero
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? Hero(tag: currentMediaItem.id, child: image)
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: image;
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return Material(
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child: ListTile(
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dense: true,
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focusNode: widget.focusNode,
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contentPadding:
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const EdgeInsets.symmetric(horizontal: 8.0),
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onTap: widget.onTap,
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leading: AnimatedSwitcher(
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duration: const Duration(milliseconds: 250),
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child: leadingWidget),
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title: Text(
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currentMediaItem.displayTitle!,
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overflow: TextOverflow.clip,
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maxLines: 1,
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),
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subtitle: Text(
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currentMediaItem.displaySubtitle ?? '',
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overflow: TextOverflow.clip,
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maxLines: 1,
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),
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trailing: IconTheme(
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data: IconThemeData(
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color: settings.isDark
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? Colors.white
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: Colors.grey[600]),
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child: Row(
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mainAxisSize: MainAxisSize.min,
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children: <Widget>[
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PrevNextButton(
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iconSize,
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prev: true,
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),
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PlayPauseButton(iconSize),
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PrevNextButton(iconSize)
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],
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),
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)));
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}),
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),
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SizedBox(
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height: 3.0,
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child: StreamBuilder<Duration>(
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stream: AudioService.position,
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builder: (context, snapshot) {
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return LinearProgressIndicator(
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value: parsePosition(snapshot.data ?? Duration.zero),
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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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class PrevNextButton extends StatelessWidget {
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final double size;
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final bool prev;
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final bool hidePrev;
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const PrevNextButton(this.size,
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{super.key, this.prev = false, this.hidePrev = false});
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@override
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Widget build(BuildContext context) {
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// Listens to both mediaItem updates (a.k.a. when the song changes)
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// and queue updates (so for example, in SmartTrackLists, when the songs are fetched, it's updated with the new items)
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return StreamBuilder<bool>(
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stream: Rx.combineLatest2<MediaItem?, List<MediaItem>, bool>(
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audioHandler.mediaItem,
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audioHandler.queue,
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(_, queue) => playerHelper.queueIndex < queue.length - 1),
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builder: (context, snapshot) {
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if (!prev) {
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return IconButton(
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splashRadius: size * 2.0,
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icon: Icon(
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Icons.skip_next,
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semanticLabel: "Play next".i18n,
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),
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iconSize: size,
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onPressed:
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snapshot.data == true ? () => audioHandler.skipToNext() : null,
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);
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}
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final canGoPrev = playerHelper.queueIndex > 0;
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if (!canGoPrev && hidePrev) return const SizedBox.shrink();
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return IconButton(
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splashRadius: size * 2.0,
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icon: Icon(
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Icons.skip_previous,
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semanticLabel: "Play previous".i18n,
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),
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iconSize: size,
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onPressed: canGoPrev ? () => audioHandler.skipToPrevious() : null,
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);
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},
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);
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}
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}
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class PlayPauseButton extends StatefulWidget {
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final double size;
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final bool filled;
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final Color? iconColor;
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/// The color of the card if [filled] is true
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final Color? color;
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const PlayPauseButton(
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this.size, {
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Key? key,
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this.filled = false,
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this.color,
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this.iconColor,
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}) : super(key: key);
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@override
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State<PlayPauseButton> createState() => _PlayPauseButtonState();
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}
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class _PlayPauseButtonState extends State<PlayPauseButton>
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with SingleTickerProviderStateMixin {
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late final AnimationController _controller;
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late final Animation<double> _animation;
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late StreamSubscription _subscription;
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late bool _canPlay = audioHandler.playbackState.value.processingState ==
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AudioProcessingState.ready ||
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audioHandler.playbackState.value.processingState ==
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AudioProcessingState.idle;
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@override
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void initState() {
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_controller = AnimationController(
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vsync: this, duration: const Duration(milliseconds: 200));
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_animation = CurvedAnimation(parent: _controller, curve: Curves.easeInOut);
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_subscription = audioHandler.playbackState.listen((playbackState) {
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if (playbackState.processingState == AudioProcessingState.ready ||
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audioHandler.playbackState.value.processingState ==
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AudioProcessingState.idle) {
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if (playbackState.playing) {
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_controller.forward();
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} else {
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_controller.reverse();
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}
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if (!_canPlay) setState(() => _canPlay = true);
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return;
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}
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setState(() => _canPlay = false);
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});
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super.initState();
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}
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@override
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void dispose() {
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_subscription.cancel();
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_controller.dispose();
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super.dispose();
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}
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void _playPause() {
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if (audioHandler.playbackState.value.playing) {
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audioHandler.pause();
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} else {
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audioHandler.play();
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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 Widget? child;
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if (_canPlay) {
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final icon = AnimatedIcon(
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icon: AnimatedIcons.play_pause,
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progress: _animation,
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semanticLabel: audioHandler.playbackState.value.playing
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? 'Pause'.i18n
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: 'Play'.i18n,
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);
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if (!widget.filled) {
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return IconButton(
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color: widget.iconColor,
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icon: icon,
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iconSize: widget.size,
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onPressed: _playPause);
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} else {
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child = Material(
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type: MaterialType.transparency,
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child: InkWell(
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customBorder: const CircleBorder(),
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onTap: _playPause,
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child: IconTheme.merge(
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child: Center(child: icon),
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data: IconThemeData(
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size: widget.size / 2, color: widget.iconColor))),
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);
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}
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} else {
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switch (audioHandler.playbackState.value.processingState) {
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//Stopped/Error
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case AudioProcessingState.error:
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child = null;
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break;
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//Loading, connecting, rewinding...
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default:
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child = const Center(child: CircularProgressIndicator());
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break;
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}
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}
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if (widget.filled) {
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return SizedBox.square(
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dimension: widget.size,
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child: AnimatedContainer(
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duration: const Duration(seconds: 1),
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decoration:
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BoxDecoration(shape: BoxShape.circle, color: widget.color),
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child: child));
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} else {
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return SizedBox.square(dimension: widget.size, child: child);
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}
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}
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}
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