feat: add danmaku overlay + time tracking to NativeVideoPlayer

components/NativeVideoPlayer.tsx

@@ -1,17 +1,16 @@
 import React, { useState, useRef, useEffect, useCallback } from 'react';
 import {
-  View, StyleSheet, Dimensions, TouchableOpacity, TouchableWithoutFeedback,
-  Text, Modal, Image, PanResponder,
+  View, StyleSheet, TouchableOpacity, TouchableWithoutFeedback,
+  Text, Modal, Image, PanResponder, useWindowDimensions,
 } from 'react-native';
 import Video, { VideoRef } from 'react-native-video';
 import { LinearGradient } from 'expo-linear-gradient';
 import { Ionicons } from '@expo/vector-icons';
-import type { PlayUrlResponse, VideoShotData } from '../services/types';
+import type { PlayUrlResponse, VideoShotData, DanmakuItem } from '../services/types';
 import { buildDashMpdUri } from '../utils/dash';
 import { getHeatmap, getVideoShot } from '../services/bilibili';
+import { DanmakuOverlay } from './DanmakuOverlay';
 
-const { width: SCREEN_W } = Dimensions.get('window');
-const VIDEO_H = SCREEN_W * 0.5625;
 const BAR_H = 3;
 const BALL = 12;
 const BALL_ACTIVE = 16;
@@ -80,12 +79,19 @@ interface Props {
   style?: object;
   bvid?: string;
   cid?: number;
+  danmakus?: DanmakuItem[];
+  isFullscreen?: boolean;
+  onTimeUpdate?: (t: number) => void;
+  initialTime?: number;
 }
 
 export function NativeVideoPlayer({
   playData, qualities, currentQn, onQualityChange, onFullscreen, onMiniPlayer, style,
-  bvid, cid,
+  bvid, cid, danmakus, isFullscreen, onTimeUpdate, initialTime,
 }: Props) {
+  const { width: SCREEN_W, height: SCREEN_H } = useWindowDimensions();
+  const VIDEO_H = SCREEN_W * 0.5625;
+
   const [resolvedUrl, setResolvedUrl] = useState<string | undefined>();
   const isDash = !!playData?.dash;
 
@@ -103,11 +109,12 @@ export function NativeVideoPlayer({
   const isSeekingRef = useRef(false);
   const [touchX, setTouchX] = useState<number | null>(null);
   const barOffsetX = useRef(0);
-  const barWidthRef = useRef(SCREEN_W);
+  const barWidthRef = useRef(300);
   const trackRef = useRef<View>(null);
 
   const [heatSegments, setHeatSegments] = useState<number[]>([]);
   const [shots, setShots] = useState<VideoShotData | null>(null);
+  const [showDanmaku, setShowDanmaku] = useState(true);
 
   const videoRef = useRef<VideoRef>(null);
   const currentDesc = qualities.find(q => q.qn === currentQn)?.desc ?? String(currentQn || 'HD');
@@ -244,7 +251,7 @@ export function NativeVideoPlayer({
 
   return (
     <TouchableWithoutFeedback onPress={handleTap}>
-      <View style={[styles.container, style]}>
+      <View style={[styles.container, { width: SCREEN_W, height: VIDEO_H }, style]}>
         {resolvedUrl ? (
           <Video
             key={resolvedUrl}
@@ -260,12 +267,28 @@ export function NativeVideoPlayer({
             onProgress={({ currentTime: ct, seekableDuration: dur }) => {
               setCurrentTime(ct);
               if (dur > 0) setDuration(dur);
+              onTimeUpdate?.(ct);
+            }}
+            onLoad={() => {
+              if (initialTime && initialTime > 0) {
+                videoRef.current?.seek(initialTime);
+              }
             }}
           />
         ) : (
           <View style={styles.placeholder} />
         )}
 
+        {isFullscreen && !!danmakus?.length && (
+          <DanmakuOverlay
+            danmakus={danmakus}
+            currentTime={currentTime}
+            screenWidth={SCREEN_W}
+            screenHeight={SCREEN_H}
+            visible={showDanmaku}
+          />
+        )}
+
         {showControls && (
           <>
             {/* Top bar */}
@@ -336,6 +359,11 @@ export function NativeVideoPlayer({
                 <TouchableOpacity style={styles.ctrlBtn} onPress={() => setShowQuality(true)}>
                   <Text style={styles.qualityText}>{currentDesc}</Text>
                 </TouchableOpacity>
+                {isFullscreen && (
+                  <TouchableOpacity style={styles.ctrlBtn} onPress={() => setShowDanmaku(v => !v)}>
+                    <Ionicons name={showDanmaku ? 'chatbubbles' : 'chatbubbles-outline'} size={16} color="#fff" />
+                  </TouchableOpacity>
+                )}
                 <TouchableOpacity style={styles.ctrlBtn} onPress={onFullscreen}>
                   <Ionicons name="expand" size={16} color="#fff" />
                 </TouchableOpacity>
@@ -370,7 +398,7 @@ export function NativeVideoPlayer({
 }
 
 const styles = StyleSheet.create({
-  container: { width: SCREEN_W, height: VIDEO_H, backgroundColor: '#000' },
+  container: { backgroundColor: '#000' },
   placeholder: { ...StyleSheet.absoluteFillObject, backgroundColor: '#000' },
   topBar: {
     position: 'absolute', top: 0, left: 0, right: 0, height: 56,