Added Image Component

Signed-off-by: Avior <florian.bouillon@delta-wings.net>

components/Image.module.styl

@@ -0,0 +1,41 @@
+.image
+	transition .3s
+	object-fit contain
+	z-index 2
+	transition .3s
+
+
+	&.ph1
+		position fixed
+		transition 0s
+
+
+	&.ph2
+		width 100% !important
+		position fixed
+		max-width 100% !important
+		max-height 100% !important
+		box-sizing border-box
+		padding 5%
+		top 0 !important
+		left 0 !important
+		height 100%
+		background #000000A0
+
+
+	&.after
+		background #00000000
+		/* height 100% */
+		box-sizing border-box
+		position fixed
+		/* width 100% */
+		z-index 0
+		padding initial
+
+
+.hideOverflow
+	overflow hidden
+
+
+.none
+	display none

components/Image.tsx

@@ -0,0 +1,209 @@
+import React, { SyntheticEvent } from 'react'
+import css from './Image.module.styl'
+
+interface Props {
+	defaultHeight?: number
+	src?: string
+	sources?: Array<string>
+	deleteOnError?: boolean
+	downgradeOnError?: string
+	canFullscreen?: boolean
+	max?: {
+		height?: number|string
+		width?: number|string
+	}
+	width?: number|string
+	default?: {
+		height?: number|string
+		width?: number|string
+	}
+	alt?: string
+}
+
+const mimeTypes = {
+	apng: 'image/apng',
+	bmp: 'image/bmp',
+	gif: 'image/gif',
+
+	ico: 'image/x-icon',
+	cur: 'image/x-icon',
+
+	jpg: 'image/jpeg',
+	jpeg: 'image/jpeg',
+	jfif: 'image/jpeg',
+	pjpeg: 'image/jpeg',
+	pjp: 'image/jpeg',
+
+	png: 'image/png',
+	svg: 'image/svg+xml',
+
+	tif: 'image/tiff',
+	tiff: 'image/tiff',
+
+	webp: 'image/webp',
+}
+
+const getMimeType = (img: string) => {
+	const arr = img.split('.')
+	return mimeTypes[arr[arr.length-1] as 'apng'] || mimeTypes.png
+}
+
+type evType<T = HTMLImageElement> = SyntheticEvent<T, Event>
+
+export default class Image extends React.Component<Props, {}> {
+
+	private ref: React.RefObject<HTMLImageElement> = React.createRef()
+	private plchldr: React.RefObject<HTMLDivElement> = React.createRef()
+	private parent: React.RefObject<HTMLDivElement> = React.createRef()
+	private pic: React.RefObject<HTMLPictureElement> = React.createRef()
+
+	private wasDowngraded = false
+	private cardPos: Array<number> = []
+	private cardSize: Array<number> = []
+
+	private isFullscreen = false
+
+	public async componentDidMount() {
+		if (this.props.canFullscreen) {
+			window.addEventListener('scroll', this.onScroll)
+			window.addEventListener('resize', this.onResize)
+			this.onScroll()
+			this.onResize()
+		}
+	}
+
+	public async componentDidUpdate() {
+		this.pic.current?.classList.remove(css.none)
+		if (this.props.canFullscreen) {
+			this.onScroll()
+			this.onResize()
+		}
+		if (this.isFullscreen) {this.onClick()}
+	}
+
+	public async componentWillUnmount() {
+		if (this.props.canFullscreen) {
+			window.removeEventListener('scroll', this.onScroll)
+			window.removeEventListener('resize', this.onResize)
+		}
+	}
+
+	public render() {
+		const pic = (
+			<picture ref={this.pic}>
+				{this.props.sources && this.props.sources.map((el,index) => (
+					<source key={index} srcSet={el} type={getMimeType(el)}/>
+				))}
+				<img
+					className={css.image}
+					ref={this.ref}
+					src={this.props.src}
+					onClick={this.props.canFullscreen && this.onClick || undefined}
+					onLoad={this.props.default && this.onLoad || undefined}
+					onError={this.props.deleteOnError && this.onError || undefined}
+					style={{
+						width: this.props.default?.width,
+						height: this.props.default?.height,
+						maxHeight: this.props.max?.height,
+						maxWidth: this.props.max?.width,
+					}}
+					alt={this.props.alt}
+				/>
+			</picture>
+		)
+		if (this.props.canFullscreen) {return (
+			<div ref={this.parent}>
+				<div ref={this.plchldr} className={css.none}></div>
+				{pic}
+			</div>
+		)}
+		return pic
+	}
+
+	private onScroll = async () => {
+		if (!this.ref.current || this.isFullscreen || !this.props.canFullscreen) {
+			return
+		}
+
+		this.cardPos = [this.ref.current.offsetTop - window.scrollY, this.ref.current.offsetLeft - window.scrollX]
+		this.ref.current.style.top = this.cardPos[0] + 'px'
+		this.ref.current.style.left = this.cardPos[1] + 'px'
+	}
+
+	private onResize = async () => {
+		if (!this.ref.current || !this.plchldr.current || !this.props.canFullscreen || this.isFullscreen) {
+			return
+		}
+		let tmp = [this.ref.current.offsetHeight, this.ref.current.offsetWidth]
+		if (this.parent.current) {
+			tmp = [this.parent.current.offsetHeight, this.ref.current.offsetWidth]
+		}
+		this.plchldr.current.style.width = `${tmp[1]}px`
+		this.plchldr.current.style.height = `${tmp[0]}px`
+	}
+
+	private onClick = async () => {
+		if (!this.ref.current || !this.props.canFullscreen || !this.plchldr.current) {
+			return
+		}
+
+		const i = this.ref.current
+		const c = this.plchldr.current
+		const body = document.body
+		i.style.top = this.cardPos[0] + 'px'
+		i.style.left = this.cardPos[1] + 'px'
+
+		if (this.isFullscreen) {
+			i.style.width = this.cardSize[1] + 'px'
+			i.style.height = this.cardSize[0] + 'px'
+			body.classList.remove(css.hideOverflow)
+			i.classList.remove(css.ph2)
+			i.classList.add(css.after)
+
+			setTimeout(() => {
+				if (i.classList.contains(css.ph2) || i.classList.contains(css.ph1) || this.isFullscreen) {return}
+				const w = this.valToPixel(this.props.width)
+				const mh = this.valToPixel(this.props.max?.height)
+				const mw = this.valToPixel(this.props.max?.width)
+				c.classList.add(css.none)
+				i.style.height = ''
+				i.style.width = w
+				i.style.maxHeight = mh
+				i.style.maxWidth = mw
+				i.classList.remove(css.after)
+			}, 350)
+			this.isFullscreen = false
+		} else {
+			i.classList.add(css.ph1)
+			c.classList.remove(css.none)
+			i.classList.add(css.ph2)
+			i.classList.remove(css.ph1)
+			body.classList.add(css.hideOverflow)
+			this.isFullscreen = true
+		}
+	}
+
+	private valToPixel(value: number|string|undefined): string {
+		if (typeof value === 'number') {
+			return `${value}px`
+		}
+		if (typeof value === 'undefined') {
+			return ''
+		}
+		return value
+	}
+
+	private onLoad = async (ev: evType) => {
+		ev.currentTarget.style.height = ''
+		ev.currentTarget.style.width = ''
+	}
+
+	private onError = async (ev: evType) => {
+		this.w('Picture not loaded', ev.currentTarget.src)
+		ev.currentTarget.parentElement?.classList.add(css.none)
+	}
+
+	private w(...messages: any) {
+		console.warn('[ Picture ]', ...messages)
+	}
+}

pages/_app.tsx

@@ -4,7 +4,7 @@ import React from 'react'
 
 import '../styl/index.styl'
 
-export default class Index extends App {
+export default class CApp extends App {
 
 	public render() {
 		const { Component, pageProps } = this.props

pages/index.tsx

@@ -1,16 +1,21 @@
 import React from 'react'
 import '../styl/index.styl'
+import HelloWorld from '../components/HelloWorld'
+import Image from '../components/Image'
 
 export default class Index extends React.Component {
 
 	public render() {
 		return(
 			<>
-				<h1>Hello World !</h1>
-				<style jsx>{`
-					h1
-						font-size: 39px
-				`}</style>
+				<HelloWorld>Hello World</HelloWorld>
+				<Image
+					max={{height:400,width:200}}
+					default={{width:200,height:100}}
+					deleteOnError={true}
+					src="https://source.unusplash.com/random/800x600"
+				/>
+				<HelloWorld>Hello World</HelloWorld>
 			</>
 		)
 	}