two view page jsx

package-lock.json

@@ -1,6 +1,6 @@
 {
   "name": "image-viewer",
-  "version": "0.1.2",
+  "version": "0.1.3",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {

src/components/BookComponent.tsx

@@ -1,6 +1,6 @@
-import React, {createContext} from 'react'
+import React, { createContext } from 'react'
 import OnePageView from './OnePageView'
-import TwoPagesView from './TwoPagesView'
+import TwoPagesView from './TwoPagesView.jsx'
 import BookComponentsController from './BookComponentsController'
 import './index.css'
 
@@ -12,7 +12,7 @@ export interface IBookPage {
     thumbnail?: string
 }
 
-export const getBookViewModes = (currIndex = 0, srcLength = 0)=>[
+export const getBookViewModes = (currIndex = 0, srcLength = 0) => [
     {
         text: 'One Page',
         value: 'one page',
@@ -41,25 +41,25 @@ export interface IBookContext {
     src?: IBookPage[],
     flagToReverse?: boolean,
     mode?: BookViewMode,
-    readonly setBookContextState: (newState: any)=> undefined
+    readonly setBookContextState: (newState: any) => undefined
 }
 
 
-const getPagesCountToTurn = (mode: string)=>{
+const getPagesCountToTurn = (mode: string) => {
-    let pagesToTurn = getBookViewModes().find(item=> item.value === mode)?.pagesToTurn
+    let pagesToTurn = getBookViewModes().find(item => item.value === mode)?.pagesToTurn
     return pagesToTurn || 0
 }
 
 class BookComponent extends React.Component<any, any>{
-    constructor(props: any){
+    constructor(props: any) {
         super(props)
         this.state = {
             currIndex: 0,
             src: [],
             flagToReverse: false,
             mode: "one page",
-            setBookContextState: (newState: IBookContext)=>{
+            setBookContextState: (newState: IBookContext) => {
-                this.setState((oldState: any)=> ({
+                this.setState((oldState: any) => ({
                     ...oldState,
                     ...newState
                 }))
@@ -69,10 +69,10 @@ class BookComponent extends React.Component<any, any>{
         }
     }
 
-    changePage = (goToPrevious: boolean, indexToGo?: number)=>{
+    changePage = (goToPrevious: boolean, indexToGo?: number) => {
-        const {mode, currIndex} = this.state
+        const { mode, currIndex } = this.state
         const pagesCountToTurn = indexToGo || getPagesCountToTurn(mode)
-        const prefixPageCount = goToPrevious? -1 : 1
+        const prefixPageCount = goToPrevious ? -1 : 1
 
         this.setState({
             currIndex: (pagesCountToTurn * prefixPageCount) + currIndex,
@@ -80,12 +80,12 @@ class BookComponent extends React.Component<any, any>{
         })
     }
 
-    componentDidMount(){
+    componentDidMount() {
-        fetch('https://picsum.photos/v2/list')
+        fetch('https://picsum.photos/v2/list?limit=30')
-            .then(response=>{
+            .then(response => {
                 return response.json()
-            }).then(data=>{
+            }).then(data => {
-                data = data.map((item: any)=>{
+                data = data.map((item: any) => {
                     return {
                         src: item.download_url,
                         alt: item.author
@@ -98,9 +98,9 @@ class BookComponent extends React.Component<any, any>{
             })
     }
 
-    getControlsDisable = ()=>{
+    getControlsDisable = () => {
-        const {mode, currIndex, src} = this.state
+        const { mode, currIndex, src } = this.state
-        const {nextDisable, prevDisable} = getBookViewModes(currIndex, src.length).find(item=> item.value === mode) || {
+        const { nextDisable, prevDisable } = getBookViewModes(currIndex, src.length).find(item => item.value === mode) || {
             nextDisable: true,
             prevDisable: true
         }
@@ -111,20 +111,20 @@ class BookComponent extends React.Component<any, any>{
         }
     }
 
-    render(){
+    render() {
-        const {mode} = this.state
+        const { mode } = this.state
 
-        return <BookContext.Provider value={{...this.state}}>
+        return <BookContext.Provider value={{ ...this.state }}>
             <BookContext.Consumer>
-                {state=>(
+                {state => (
                     <>
-                        {mode === "one page" && <OnePageView {...state}/>}
+                        {mode === "one page" && <OnePageView {...state} />}
-                        {mode === "two pages" && <TwoPagesView {...state}/>}
+                        {mode === "two pages" && <TwoPagesView {...state} />}
                         <BookComponentsController
-                            onPrevClick={()=>{
+                            onPrevClick={() => {
                                 this.changePage(true)
                             }}
-                            onNextClick={()=>{
+                            onNextClick={() => {
                                 this.changePage(false)
                             }}
                             {...this.getControlsDisable()}

src/components/TwoPagesView.jsx

@@ -0,0 +1,91 @@
+import React, { useState, useEffect } from 'react';
+import { useTransition, animated } from 'react-spring';
+import {
+	ComponentContainer,
+	PageComponent,
+	PageContainer,
+} from './OnePageView';
+
+export default function TwoPagesView(props) {
+	let { src, currIndex, flagToReverse } = props;
+	const [pagesToshow, setPagesToShow] = useState([
+		{
+			src: '',
+			alt: '',
+			thumbnail: '',
+		},
+		{
+			src: '',
+			alt: '',
+			thumbnail: '',
+		},
+	]);
+
+	const transitionFirst = useTransition(pagesToshow[0], (item) => item.src, {
+        from: {opacity: 1, transform: flagToReverse? "translate3d(-50%, 0, 0)": "translate3d(100%, 0, 0)"},
+        enter: { opacity: 1, transform: "translate3d(0%, 0, 0)" },
+        leave: { opacity: 0, transform: flagToReverse? "translate3d(100%, 0, 0)": "translate3d(-50%, 0, 0)"},
+	});
+
+	const transitionSecond = useTransition(pagesToshow[1], (item) => item.src, {
+        from: {opacity: 1, transform: flagToReverse? "translate3d(0%, 0, 0)": "translate3d(150%, 0, 0)"},
+        enter: { opacity: 1, transform: "translate3d(50%, 0, 0)" },
+        leave: { opacity: 0, transform: flagToReverse? "translate3d(150%, 0, 0)": "translate3d(0%, 0, 0)"},
+	});
+
+	useEffect(() => {
+		const shouldShowPage = (pageIndex) => {
+			return src.length > 0 && pageIndex <= src.length - 1;
+		};
+
+		const newCurrIndex = currIndex % 2 === 0 ? currIndex : currIndex - 1;
+
+		const shouldShowFirstPage = shouldShowPage(newCurrIndex);
+		if (shouldShowFirstPage) {
+			const shouldShowSecondPage = shouldShowPage(newCurrIndex + 1);
+			setPagesToShow([
+				src[newCurrIndex],
+				shouldShowSecondPage
+					? src[newCurrIndex + 1]
+					: {
+						src: '',
+						alt: '',
+						thumbnail: '',
+					},
+			]);
+		}
+	}, [currIndex, src]);
+
+	return (
+		<ComponentContainer>
+			<PageContainer>
+				{transitionFirst.map(({ item, key, props }) => {
+					return (
+						item && (
+							<animated.div style={{ ...props }} key={key}>
+								<PageComponent width={'50%'} src={item.src} />
+							</animated.div>
+						)
+					);
+				})}
+
+				{transitionSecond.map(({ item, key, props }) => {
+					return (
+						item && (
+							<animated.div
+								style={{
+									...props,
+									transformOrigin: 'left center',
+								}}
+								key={key}
+							>
+								<PageComponent width={'50%'} src={item.src} />
+							</animated.div>
+						)
+					);
+				})}
+			</PageContainer>
+		</ComponentContainer>
+	);
+}
+

src/components/TwoPagesView.tsx

@@ -1,91 +0,0 @@
-import React, {useState, useEffect} from 'react'
-import {Transition, animated} from 'react-spring/renderprops'
-import {ComponentContainer, PageComponent, PageContainer} from './OnePageView'
-import { IBookContext } from './BookComponent'
-
-export default function TwoPagesView(props: any) {
-    let {src, currIndex, flagToReverse} = props
-    const [pagesToshow, setPagesToShow] = useState<IBookContext[]>([])
-    
-    useEffect(()=>{
-        const shouldShowPage = (pageIndex: number)=>{
-            return src.length > 0 && pageIndex <= src.length - 1
-        }
-
-        const newCurrIndex = currIndex % 2 === 0 ? currIndex: currIndex - 1
-
-        const shouldShowFirstPage = shouldShowPage(newCurrIndex)
-        if(shouldShowFirstPage){
-            const shouldShowSecondPage = shouldShowPage(newCurrIndex + 1)
-            setPagesToShow([
-                src[newCurrIndex], 
-                shouldShowSecondPage? src[newCurrIndex + 1]: {
-                        src: '',
-                        alt: '',
-                        thumbnail: '',
-                    }
-            ])
-        }
-    }, [currIndex, src])
-
-    return (
-        <ComponentContainer>
-            <PageContainer>
-                <Transition
-                    reset
-                    unique
-                    items={pagesToshow}
-                    keys={(item: any)=> item.src}
-                    initial={{}}
-                    from={{opacity: 1, transform: flagToReverse? "translate3d(-50%, 0, 0)": "translate3d(100%, 0, 0)"}}
-                    enter={{ opacity: 1, transform: "translate3d(0%, 0, 0)" }}
-                    leave={{ opacity: 0, transform: flagToReverse? "translate3d(100%, 0, 0)": "translate3d(-50%, 0, 0)"}}
-                >
-                    {
-                        currIndex=> style=>{
-                            return(
-                                <animated.div style={{
-                                    ...style,
-                                    }}>
-                                    {React.createElement(()=>{
-                                        return <PageComponent width={"50%"} src={pagesToshow[0]? pagesToshow[0].src: null}/>
-                                    })}
-                                </animated.div>
-                            )
-                        }
-                    }
-                </Transition>
-
-                <Transition
-                    reset
-                    unique
-                    items={pagesToshow}
-                    keys={(item: any)=> item.src}
-                    from={{opacity: 1, transform: flagToReverse? "translate3d(0%, 0, 0)": "translate3d(150%, 0, 0)"}}
-                    enter={{ opacity: 1, transform: "translate3d(50%, 0, 0)" }}
-                    leave={{ opacity: 0, transform: flagToReverse? "translate3d(150%, 0, 0)": "translate3d(0%, 0, 0)"}}
-                    initial={{}}
-                >
-                    {
-                        currIndex=> style=>{
-                            return(
-                                <animated.div style={{
-                                    ...style,
-                                    }}>
-                                    {React.createElement(()=>{
-                                        return <PageComponent width={"50%"} src={pagesToshow[1]? pagesToshow[1].src: null}/>
-                                    })}
-                                </animated.div>
-                            )
-                        }
-                    }
-                </Transition>
-            </PageContainer>
-        </ComponentContainer>
-    )
-}
-
-interface Book {
-    name: string
-}
-