128 lines
3.5 KiB
Dart
128 lines
3.5 KiB
Dart
import 'package:flutter/material.dart';
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import 'package:get/get.dart';
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import 'package:ns_danmaku/ns_danmaku.dart';
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import 'package:pilipala/pages/danmaku/index.dart';
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import 'package:pilipala/plugin/pl_player/index.dart';
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import 'package:pilipala/utils/danmaku.dart';
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/// 传入播放器控制器，监听播放进度，加载对应弹幕
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class PlDanmaku extends StatefulWidget {
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final int cid;
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final PlPlayerController playerController;
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const PlDanmaku({
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super.key,
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required this.cid,
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required this.playerController,
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});
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@override
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State<PlDanmaku> createState() => _PlDanmakuState();
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}
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class _PlDanmakuState extends State<PlDanmaku> {
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late PlPlayerController playerController;
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late PlDanmakuController _plDanmakuController;
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DanmakuController? _controller;
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bool danmuPlayStatus = true;
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@override
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void initState() {
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super.initState();
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_plDanmakuController =
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PlDanmakuController(widget.cid, widget.playerController);
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if (mounted) {
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playerController = widget.playerController;
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_plDanmakuController.videoDuration = playerController.duration.value;
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_plDanmakuController
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..calcSegment()
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..queryDanmaku();
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playerController
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..addStatusLister(playerListener)
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..addPositionListener(videoPositionListen);
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}
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}
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// 播放器状态监听
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void playerListener(PlayerStatus? status) {
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if (status == PlayerStatus.paused) {
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_controller!.pause();
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}
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if (status == PlayerStatus.playing) {
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_controller!.onResume();
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}
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}
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void videoPositionListen(Duration position) {
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if (!danmuPlayStatus) {
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_controller!.onResume();
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danmuPlayStatus = true;
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}
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PlDanmakuController ctr = _plDanmakuController;
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int currentPosition = position.inMilliseconds;
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// 超出分段数返回
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if (ctr.currentSegIndex >= ctr.dmSegList.length) {
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return;
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}
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if (ctr.dmSegList.isEmpty ||
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ctr.dmSegList[ctr.currentSegIndex].elems.isEmpty) {
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return;
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}
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// 超出当前分段的弹幕总数返回
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if (ctr.currentDmIndex >= ctr.dmSegList[ctr.currentSegIndex].elems.length) {
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ctr.currentDmIndex = 0;
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ctr.currentSegIndex++;
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return;
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}
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var element = ctr.dmSegList[ctr.currentSegIndex].elems[ctr.currentDmIndex];
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var delta = currentPosition - element.progress;
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if (delta >= 0 && delta < 200) {
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_controller!.addItems([
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DanmakuItem(
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element.content,
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color: DmUtils.decimalToColor(element.color),
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time: element.progress,
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type: DmUtils.getPosition(element.mode),
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)
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]);
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ctr.currentDmIndex++;
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} else {
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if (!playerController.isOpenDanmu.value) {
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_controller!.pause();
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danmuPlayStatus = false;
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return;
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}
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ctr.findClosestPositionIndex(position.inMilliseconds);
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}
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}
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@override
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void dispose() {
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playerController.removePositionListener(videoPositionListen);
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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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return Obx(
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() => AnimatedOpacity(
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opacity: playerController.isOpenDanmu.value ? 1 : 0,
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duration: const Duration(milliseconds: 100),
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child: DanmakuView(
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createdController: (DanmakuController e) async {
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widget.playerController.danmakuController = _controller = e;
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},
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option: DanmakuOption(
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fontSize: 15,
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area: 0.5,
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duration: 5,
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),
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statusChanged: (isPlaying) {},
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),
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),
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);
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}
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}
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