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import * as React from 'react'
import {StyleSheet} from 'react-native'
import {GifViewProps} from './GifView.types'
export class GifView extends React.PureComponent<GifViewProps> {
private readonly videoPlayerRef: React.RefObject<HTMLMediaElement> =
React.createRef()
private isLoaded = false
constructor(props: GifViewProps | Readonly<GifViewProps>) {
super(props)
}
componentDidUpdate(prevProps: Readonly<GifViewProps>) {
if (prevProps.autoplay !== this.props.autoplay) {
if (this.props.autoplay) {
this.playAsync()
} else {
this.pauseAsync()
}
}
}
static async prefetchAsync(_: string[]): Promise<void> {
console.warn('prefetchAsync is not supported on web')
}
private firePlayerStateChangeEvent = () => {
this.props.onPlayerStateChange?.({
nativeEvent: {
isPlaying: !this.videoPlayerRef.current?.paused,
isLoaded: this.isLoaded,
},
})
}
private onLoad = () => {
// Prevent multiple calls to onLoad because onCanPlay will fire after each loop
if (this.isLoaded) {
return
}
this.isLoaded = true
this.firePlayerStateChangeEvent()
}
async playAsync(): Promise<void> {
this.videoPlayerRef.current?.play()
}
async pauseAsync(): Promise<void> {
this.videoPlayerRef.current?.pause()
}
async toggleAsync(): Promise<void> {
if (this.videoPlayerRef.current?.paused) {
await this.playAsync()
} else {
await this.pauseAsync()
}
}
render() {
return (
<video
src={this.props.source}
autoPlay={this.props.autoplay ? 'autoplay' : undefined}
preload={this.props.autoplay ? 'auto' : undefined}
playsInline={true}
loop="loop"
muted="muted"
style={StyleSheet.flatten(this.props.style)}
onCanPlay={this.onLoad}
onPlay={this.firePlayerStateChangeEvent}
onPause={this.firePlayerStateChangeEvent}
aria-label={this.props.accessibilityLabel}
ref={this.videoPlayerRef}
/>
)
}
}
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