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perf: add ref callback and function to handle end of video #10

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perf: add ref callback and function to handle end of video #10

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64 changes: 44 additions & 20 deletions src/components/VideoCarousel.jsx
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Original file line number Diff line number Diff line change
Expand Up @@ -2,15 +2,38 @@ import gsap from "gsap";
import { useGSAP } from "@gsap/react";
import { ScrollTrigger } from "gsap/all";
gsap.registerPlugin(ScrollTrigger);
import { useEffect, useRef, useState } from "react";
import { useCallback, useEffect, useRef, useState } from "react";

import { hightlightsSlides } from "../constants";
import { pauseImg, playImg, replayImg } from "../utils";

const VideoCarousel = () => {
const videoRef = useRef([]);
const videoSpanRef = useRef([]);
const videoDivRef = useRef([]);
// ref to keep track
const videoRef = useRef([]); // track video playing
const videoSpanRef = useRef([]); // track the no of dots for video
const videoDivRef = useRef([]); // track progress animation in each dot

// function to handle end of the video in the carousel
const handleVideoEnd = (index) => {
if (index !== 3) {
handleProcess("video-end", index);
} else {
handleProcess("video-last");
}
};

// Define the ref callbacks
const setVideoRef = useCallback((el, i) => {
videoRef.current[i] = el;
}, []);

const setVideoDivRef = useCallback((el, i) => {
videoDivRef.current[i] = el;
}, []);

const setVideoSpanRef = useCallback((el, i) => {
videoSpanRef.current[i] = el;
}, []);

// video and indicator
const [video, setVideo] = useState({
Expand All @@ -29,7 +52,7 @@ const VideoCarousel = () => {
gsap.to("#slider", {
transform: `translateX(${-100 * videoId}%)`,
duration: 2,
ease: "power2.inOut", // show visualizer https://gsap.com/docs/v3/Eases
ease: "power4.inOut",
});

// video animation to play the video when it is in the view
Expand Down Expand Up @@ -141,27 +164,31 @@ const VideoCarousel = () => {
break;

case "pause":
setVideo((pre) => ({ ...pre, isPlaying: !pre.isPlaying }));
videoRef.current[videoId].pause();
setVideo((pre) => ({ ...pre, isPlaying: false }));
break;

case "play":
setVideo((pre) => ({ ...pre, isPlaying: !pre.isPlaying }));
videoRef.current[videoId].play();
setVideo((pre) => ({ ...pre, isPlaying: true }));
break;

default:
return video;
}
};

const handleLoadedMetaData = (i, e) => setLoadedData((pre) => [...pre, e]);

const handleLoadedMetaData = useCallback((i, e) => {
setLoadedData((pre) => [...pre, e]);
}, []);
return (
<>
<div className="flex items-center">
{hightlightsSlides.map((list, i) => (
<div key={list.id} id="slider" className="sm:pr-20 pr-10">
<div className="video-carousel_container">
<div className="w-full h-full flex-center rounded-3xl overflow-hidden bg-black">
{/* Use the memoized callbacks in your JSX */}
<video
id="video"
playsInline={true}
Expand All @@ -170,15 +197,11 @@ const VideoCarousel = () => {
} pointer-events-none`}
preload="auto"
muted
ref={(el) => (videoRef.current[i] = el)}
onEnded={() =>
i !== 3
? handleProcess("video-end", i)
: handleProcess("video-last")
}
onPlay={() =>
setVideo((pre) => ({ ...pre, isPlaying: true }))
}
ref={(el) => setVideoRef(el, i)}
onEnded={() => handleVideoEnd(i)}
onPlay={() => {
setVideo((pre) => ({ ...pre, isPlaying: true }));
}}
onLoadedMetadata={(e) => handleLoadedMetaData(i, e)}
>
<source src={list.video} type="video/mp4" />
Expand All @@ -200,14 +223,15 @@ const VideoCarousel = () => {
<div className="relative flex-center mt-10">
<div className="flex-center py-5 px-7 bg-gray-300 backdrop-blur rounded-full">
{videoRef.current.map((_, i) => (
// Use the memoized callbacks in your JSX
<span
key={i}
className="mx-2 w-3 h-3 bg-gray-200 rounded-full relative cursor-pointer"
ref={(el) => (videoDivRef.current[i] = el)}
ref={(el) => setVideoDivRef(el, i)}
>
<span
className="absolute h-full w-full rounded-full"
ref={(el) => (videoSpanRef.current[i] = el)}
ref={(el) => setVideoSpanRef(el, i)}
/>
</span>
))}
Expand Down