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lyrics_lrc_parsed_view.dart
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lyrics_lrc_parsed_view.dart
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import 'dart:async';
import 'package:flutter/material.dart';
import 'package:get/get.dart';
import 'package:lrc/lrc.dart';
import 'package:scrollable_positioned_list/scrollable_positioned_list.dart';
import 'package:namida/class/track.dart';
import 'package:namida/controller/current_color.dart';
import 'package:namida/controller/lyrics_controller.dart';
import 'package:namida/controller/player_controller.dart';
import 'package:namida/controller/settings_controller.dart';
import 'package:namida/core/extensions.dart';
import 'package:namida/core/icon_fonts/broken_icons.dart';
import 'package:namida/packages/miniplayer_base.dart';
import 'package:namida/ui/widgets/custom_widgets.dart';
class LyricsLRCParsedView extends StatefulWidget {
final double cp;
final Lrc? lrc;
final Widget videoOrImage;
final bool isFullScreenView;
const LyricsLRCParsedView({
super.key,
required this.cp,
required this.lrc,
required this.videoOrImage,
this.isFullScreenView = false,
});
@override
State<LyricsLRCParsedView> createState() => LyricsLRCParsedViewState();
}
class LyricsLRCParsedViewState extends State<LyricsLRCParsedView> {
void enterFullScreen() {
Navigator.of(context).push(
MaterialPageRoute(
builder: (context) {
return LyricsLRCParsedView(
key: Lyrics.inst.lrcViewKeyFullscreen,
cp: widget.cp,
lrc: currentLRC,
videoOrImage: const SizedBox(),
isFullScreenView: true,
);
},
),
);
}
late final ItemScrollController controller;
late final ItemPositionsListener positionListener;
late final int topDummyItems;
late final int bottomDummyItems;
@override
void initState() {
super.initState();
topDummyItems = widget.isFullScreenView ? 32 : 12;
bottomDummyItems = widget.isFullScreenView ? 32 : 12;
controller = ItemScrollController();
positionListener = ItemPositionsListener.create();
fillLists(widget.lrc);
}
Lrc? currentLRC;
void fillLists(Lrc? lrc) {
currentLRC = lrc;
if (lrc == null) {
timestampsMap.clear();
lyrics.clear();
return;
}
// -- calculating timestamps multiplier, useful for spedup/nightcore
final llength = lrc.length ?? '';
double cal = 0;
if (llength != '') {
final parts = llength.split(RegExp(r'[:.]'));
try {
final lyricsDuration = Duration(
minutes: int.parse(parts[0]),
seconds: int.parse(parts[1]),
milliseconds: int.parse("${parts[2]}0"), // aditional 0 to convert to millis
);
final totalDur = Player.inst.currentItemDuration ?? Player.inst.nowPlayingTrack.duration.seconds;
cal = totalDur.inMicroseconds / lyricsDuration.inMicroseconds;
} catch (_) {}
}
timestampsMap
..clear()
..addEntries(
lrc.lyrics.asMap().entries.map(
(e) {
final lineTimeStamp = e.value.timestamp + Duration(milliseconds: lrc.offset ?? 0);
final calculatedForSpedUpVersions = cal == 0 ? lineTimeStamp : (lineTimeStamp * cal);
final newLrcLine = LrcLine(
timestamp: calculatedForSpedUpVersions,
lyrics: e.value.lyrics,
type: e.value.type,
args: e.value.args,
);
return MapEntry(
calculatedForSpedUpVersions,
(e.key, newLrcLine),
);
},
),
);
lyrics = timestampsMap.values.map((e) => e.$2).toList();
_listenForPosition();
_updateHighlightedLine(Player.inst.nowPlayingPosition.milliseconds, jump: true);
}
StreamSubscription? _streamSub;
void _listenForPosition() {
_streamSub = Player.inst.positionStream.asBroadcastStream().listen((ms) {
_updateHighlightedLine(ms.milliseconds);
});
}
void _updateHighlightedLine(Duration dur, {bool forceAnimate = false, bool jump = false}) {
final lrcDur = lyrics.lastWhereEff((e) {
return e.timestamp <= dur;
});
WidgetsBinding.instance.addPostFrameCallback((_) {
_latestUpdatedLine.value = lrcDur?.timestamp;
final newIndex = timestampsMap[_latestUpdatedLine.value]?.$1 ?? -1;
_latestUpdatedLineIndex.value = newIndex;
if ((_canAnimateScroll || forceAnimate) && controller.isAttached) {
final index = (newIndex + topDummyItems).toIf(0, -1);
jump
? controller.jumpTo(
alignment: 0.4,
index: index,
)
: controller.scrollTo(
alignment: 0.4,
index: index,
duration: const Duration(milliseconds: 300),
curve: Curves.easeOut,
);
}
});
}
// ignore: unused_field
Timer? _scrollTimer;
bool _canAnimateScroll = true;
final _latestUpdatedLineIndex = (-1).obs;
final _latestUpdatedLine = Rxn<Duration>();
var lyrics = <LrcLine>[];
final timestampsMap = <Duration, (int, LrcLine)>{};
double _previousFontMultiplier = settings.fontScaleLRC;
double _fontMultiplier = settings.fontScaleLRC;
@override
void dispose() {
_latestUpdatedLineIndex.close();
_latestUpdatedLine.close();
_streamSub?.cancel();
super.dispose();
}
@override
Widget build(BuildContext context) {
final fullscreen = widget.isFullScreenView;
final initialFontSize = fullscreen ? 25.0 : 15.0;
final normalTextStyle = context.textTheme.displayMedium!.copyWith(fontSize: _fontMultiplier * initialFontSize.multipliedFontScale);
return Stack(
alignment: Alignment.center,
children: [
fullscreen
? Positioned.fill(
child: Obx(
() => Container(
color: Color.alphaBlend(
CurrentColor.inst.miniplayerColor.withOpacity(0.2),
context.isDarkMode ? Colors.black.withOpacity(0.5) : Colors.white.withOpacity(0.5),
),
),
),
)
: widget.videoOrImage,
// NamidaOpacity causes rebuilds
Opacity(
opacity: widget.cp,
child: BorderRadiusClip(
borderRadius: fullscreen ? BorderRadius.zero : BorderRadius.circular(16.0.multipliedRadius),
child: NamidaBgBlur(
blur: fullscreen ? 0.0 : 14.0,
enabled: true,
child: Container(
color: context.theme.scaffoldBackgroundColor.withOpacity(fullscreen ? 0.8 : 0.6),
alignment: Alignment.center,
child: Column(
children: [
Expanded(
child: Stack(
children: [
Listener(
onPointerMove: (event) {
_scrollTimer?.cancel();
_scrollTimer = null;
_canAnimateScroll = false;
},
onPointerUp: (event) {
_scrollTimer = Timer(const Duration(seconds: 3), () {
_canAnimateScroll = true;
if (Player.inst.isPlaying) {
_updateHighlightedLine(Player.inst.nowPlayingPosition.milliseconds, forceAnimate: true);
}
});
},
child: ShaderFadingWidget(
biggerValues: fullscreen,
child: Builder(
builder: (context) {
return Obx(
() {
final lrc = Lyrics.inst.currentLyricsLRC.value;
if (lrc == null) {
final text = Lyrics.inst.currentLyricsText.value;
if (text != '') {
return SingleChildScrollView(
child: Column(
children: [
SizedBox(height: context.height * 0.3),
Text(
text,
style: normalTextStyle,
),
SizedBox(height: context.height * 0.3),
],
),
);
}
return const SizedBox();
}
final color = CurrentColor.inst.miniplayerColor;
final highlighted = timestampsMap[_latestUpdatedLine.value]?.$2;
return PageStorage(
bucket: PageStorageBucket(),
child: ScrollablePositionedList.builder(
key: PageStorageKey(widget.key),
// initialAlignment: 0.4,
itemScrollController: controller,
itemCount: lyrics.length + topDummyItems + bottomDummyItems,
itemBuilder: (context, indexBefore) {
if (indexBefore < topDummyItems) return const SizedBox(height: 12.0);
if (indexBefore >= (lyrics.length + topDummyItems)) return const SizedBox(height: 12.0);
final index = indexBefore - topDummyItems;
final lrc = lyrics[index];
final selected = highlighted?.timestamp == lrc.timestamp;
final text = lrc.lyrics;
final bgColor =
selected && text != '' ? Color.alphaBlend(color.withAlpha(140), context.theme.scaffoldBackgroundColor).withOpacity(0.5) : null;
final padding = selected ? 2.0 : 0.0;
return Stack(
alignment: Alignment.center,
children: [
Positioned.fill(
child: Material(
type: MaterialType.transparency,
child: InkWell(
splashFactory: InkSparkle.splashFactory,
onTap: () {
Player.inst.seek(lrc.timestamp);
_updateHighlightedLine(lrc.timestamp, forceAnimate: true);
},
),
),
),
IgnorePointer(
child: NamidaHero(
tag: 'LYRICS_LINE_${lrc.timestamp}',
enabled: false,
child: AnimatedScale(
duration: const Duration(milliseconds: 400),
curve: Curves.easeInOutCubicEmphasized,
scale: selected ? 1.0 : 0.95,
child: NamidaInkWell(
bgColor: bgColor,
borderRadius: 8.0,
animationDurationMS: 300,
margin: EdgeInsets.symmetric(vertical: padding, horizontal: 4.0),
padding: const EdgeInsets.symmetric(vertical: 8.0, horizontal: 8.0),
child: Text(
text,
style: normalTextStyle.copyWith(
color: selected ? Colors.white.withOpacity(0.7) : normalTextStyle.color?.withOpacity(0.5) ?? Colors.transparent,
),
textAlign: TextAlign.center,
),
),
),
),
),
],
);
},
),
);
},
);
},
),
),
),
Positioned(
bottom: 8.0,
right: 0.0,
child: Container(
clipBehavior: Clip.antiAlias,
padding: const EdgeInsets.all(4.0),
decoration: BoxDecoration(
shape: BoxShape.circle,
boxShadow: [
BoxShadow(
blurRadius: 8.0,
color: Get.theme.scaffoldBackgroundColor.withOpacity(0.7),
),
],
),
child: NamidaIconButton(
icon: Broken.maximize_3,
iconSize: 20.0,
onPressed: () {
if (fullscreen) {
Navigator.of(context).pop();
} else {
enterFullScreen();
}
},
),
),
),
],
),
),
if (fullscreen) ...[
const WaveformMiniplayer(fixPadding: true),
const SizedBox(height: 8.0),
Row(
mainAxisAlignment: MainAxisAlignment.center,
children: [
const Spacer(),
NamidaHero(
enabled: false,
tag: 'MINIPLAYER_POSITION',
child: Obx(
() => Text(
Player.inst.nowPlayingPosition.milliSecondsLabel,
style: context.textTheme.displaySmall,
),
),
),
const Spacer(),
NamidaIconButton(
icon: Broken.previous,
iconSize: 24.0,
onPressed: () {
Player.inst.previous();
},
),
Obx(
() => NamidaIconButton(
horizontalPadding: 18.0,
icon: Player.inst.isPlaying ? Broken.pause : Broken.play,
iconSize: 32.0,
onPressed: () {
Player.inst.togglePlayPause();
},
),
),
NamidaIconButton(
icon: Broken.next,
iconSize: 24.0,
onPressed: () {
Player.inst.next();
},
),
const Spacer(),
NamidaHero(
enabled: false,
tag: 'MINIPLAYER_DURATION',
child: Obx(
() => Text(
Player.inst.nowPlayingTrack.duration.secondsLabel,
style: context.textTheme.displaySmall,
),
),
),
const Spacer(),
],
),
const SizedBox(height: 12.0),
SizedBox(height: MediaQuery.paddingOf(context).bottom),
]
],
),
),
),
),
),
Positioned.fill(
child: ScaleDetector(
onScaleStart: (details) => _previousFontMultiplier = _fontMultiplier,
onScaleUpdate: (details) => setState(() => _fontMultiplier = (details.scale * _previousFontMultiplier).clamp(0.5, 2.0)),
onScaleEnd: (details) => settings.save(fontScaleLRC: _fontMultiplier),
),
),
],
);
}
}