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components_renderer_media_ImageRenderer.js.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>JSDoc: Source: components/renderer/media/ImageRenderer.js</title>
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<h1 class="page-title">Source: components/renderer/media/ImageRenderer.js</h1>
<section>
<article>
<pre class="prettyprint source linenums"><code>import React, { useState } from 'react'
import { Image, Dimensions, View } from 'react-native'
import { Log } from '../../../infrastructure/Log'
import { createStyleSheet } from '../../../styles/createStyleSheet'
import { Loading } from '../../Loading'
import { ContentServer } from '../../../remotes/ContentServer'
import { mergeStyles } from '../../../styles/mergeStyles'
const win = Dimensions.get('window')
const debug = Log.create('ImageRenderer', 'debug', true)
/**
* Renders an image by given value
* @param props {object}
* @param props.width {string|number}
* @param props.value {string} url
* @param props.style {object=} optional styles
* @return {JSX.Element|null}
* @constructor
*/
export const ImageRenderer = props => {
const widthRatio = props.width
? Number.parseInt(props.width) / 12
: 1
const [loadComplete, setLoadComplete] = useState(false)
const [error, setError] = useState(null)
const urlReplaced = ContentServer.cleanUrl(props.value)
const imageProps = {
source: { uri: urlReplaced },
onError: ({ nativeEvent: { error } }) => {
debug('load failed from', urlReplaced)
Log.error(error)
setLoadComplete(true)
setError(error)
},
onLoadEnd: event => {
debug('load end from', urlReplaced)
setTimeout(() => setLoadComplete(true), 300)
},
// other potential events:
// onLayout: event => console.debug('layout', event.nativeEvent),
// onProgress:event => console.debug('progress', event.nativeEvent),
style: mergeStyles(styles.image, { width: win.width * widthRatio }, props.style),
resizeMethod: 'auto'
}
if (error) {
return null
}
const loader = () => loadComplete
? null
: (<Loading />)
return (
<View style={styles.imageContainer}>
{loader()}
<Image {...imageProps} accessibilityRole='image' resizeMode='center' />
</View>
)
}
const styles = createStyleSheet({
image: {
resizeMode: 'center',
height: 250
},
imageContainer: {
flexDirection: 'row',
alignItems: 'flex-start'
}
})
</code></pre>
</article>
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<h2><a href="index.html">Home</a></h2><h3>Classes</h3><ul><li><a href="AuthenticationError.html">AuthenticationError</a></li><li><a href="ClozeRenderer.html">ClozeRenderer</a></li><li><a href="ConnectItemRenderer.html">ConnectItemRenderer</a></li><li><a href="ConnectionError.html">ConnectionError</a></li><li><a href="ImageRenderer.html">ImageRenderer</a></li><li><a href="LeaCollection.html">LeaCollection</a></li><li><a href="MeteorError_MeteorError.html">MeteorError</a></li><li><a href="SyncScreen.html">SyncScreen</a></li><li><a href="UnitContentElementFactory.html">UnitContentElementFactory</a></li></ul><h3>Global</h3><ul><li><a href="global.html#AccountInfo">AccountInfo</a></li><li><a href="global.html#AchievementsScreen">AchievementsScreen</a></li><li><a href="global.html#ActionButton">ActionButton</a></li><li><a href="global.html#App">App</a></li><li><a href="global.html#AppSession">AppSession</a></li><li><a href="global.html#CharacterInput">CharacterInput</a></li><li><a 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