move state logic up to book component

This commit is contained in:
Vut Pov 2020-05-11 10:17:26 +07:00
parent b1b15ee45d
commit fb1bd05161
6 changed files with 69 additions and 65 deletions

View File

@ -1,6 +1,8 @@
import React, {createContext} from 'react'
import OnePageView from './OnePageView'
import TwoPagesView from './TwoPagesView'
import BookComponentsController from './BookComponentsController'
import './index.css'
export const BookContext = createContext({})
@ -10,16 +12,22 @@ export interface IBookPage {
thumbnail?: string
}
export const bookViewModes = [
export const getBookViewModes = (currIndex = 0, srcLength = 0)=>[
{
text: 'One Page',
value: 'one page',
icon: ''
icon: '',
pagesToTurn: 1,
nextDisable: currIndex >= srcLength - 1,
prevDisable: currIndex === 0,
},
{
text: 'Two Pages',
value: 'two pages',
icon: ''
icon: '',
pagesToTurn: 2,
nextDisable: currIndex >= srcLength - 2,
prevDisable: currIndex <= 1,
}
]
@ -37,6 +45,11 @@ export interface IBookContext {
}
const getPagesCountToTurn = (mode: string)=>{
let pagesToTurn = getBookViewModes().find(item=> item.value === mode)?.pagesToTurn
return pagesToTurn || 0
}
class BookComponent extends React.Component<any, any>{
constructor(props: any){
super(props)
@ -51,16 +64,21 @@ class BookComponent extends React.Component<any, any>{
...newState
}))
},
changePage: (indexToGo: number, goToPrevious: boolean)=>{
const newCurrIndex = this.state.currIndex + indexToGo
this.setState({
currIndex: newCurrIndex,
flagToReverse: goToPrevious
})
}
changePage: this.changePage,
pagesToTurn: 1,
}
}
changePage = (goToPrevious: boolean, indexToGo?: number)=>{
const {mode, currIndex} = this.state
const pagesCountToTurn = indexToGo || getPagesCountToTurn(mode)
const prefixPageCount = goToPrevious? -1 : 1
this.setState({
currIndex: (pagesCountToTurn * prefixPageCount) + currIndex,
flagToReverse: goToPrevious
})
}
componentDidMount(){
fetch('https://picsum.photos/v2/list')
@ -79,6 +97,19 @@ class BookComponent extends React.Component<any, any>{
})
})
}
getControlsDisable = ()=>{
const {mode, currIndex, src} = this.state
const {nextDisable, prevDisable} = getBookViewModes(currIndex, src.length).find(item=> item.value === mode) || {
nextDisable: true,
prevDisable: true
}
return {
nextDisable,
prevDisable
}
}
render(){
const {mode} = this.state
@ -89,6 +120,16 @@ class BookComponent extends React.Component<any, any>{
<>
{mode === "one page" && <OnePageView {...state}/>}
{mode === "two pages" && <TwoPagesView {...state}/>}
<BookComponentsController
onPrevClick={()=>{
this.changePage(true)
}}
onNextClick={()=>{
this.changePage(false)
}}
{...this.getControlsDisable()}
{...this.state}
/>
</>
)}
</BookContext.Consumer>

View File

@ -2,19 +2,22 @@ import React, {useState, useCallback, useEffect} from 'react'
import {Slider, InputNumber} from 'antd'
import styled from 'styled-components'
const Container = styled.div`
width: 100%;
display: inline-flex;
`
const JumpControls = (props: any)=>{
const {src, currIndex, setBookContextState} = props
const {src, currIndex, setBookContextState, pagesToTurn} = props
const [inputValue, setInputValue] = useState(currIndex)
const [sliderValue, setSliderValue] = useState(currIndex)
const onChange = useCallback(
(value) => {
if(value){
const newCurrIndex = value -1
if(newCurrIndex < src.length && newCurrIndex >=0){
setBookContextState({
currIndex: value - 1,
@ -46,11 +49,13 @@ const JumpControls = (props: any)=>{
min={1}
max={src.length}
onAfterChange={onChange}
step={pagesToTurn}
defaultValue={typeof inputValue === 'number' ? inputValue : 1}
{...sliderRestProps()}
/>
<InputNumber
className={"jump-control"}
min={1}
max={src.length}
style={{ margin: '0 8px' }}

View File

@ -1,7 +1,6 @@
import React, {useState, useEffect} from 'react'
import React from 'react'
import {Transition, animated} from 'react-spring/renderprops'
import styled, { } from 'styled-components'
import BookComponentsController from './BookComponentsController'
const ComponentContainer = styled.div`
display: flex;
@ -41,16 +40,7 @@ const PageComponent = (props: any)=>{
function BookComponent(props: any) {
const {src, currIndex, flagToReverse, changePage} = props
const [prevDisable, setPrevDisable] = useState(true)
const [nextDisable, setNextDisable] = useState(false)
useEffect(() => {
setNextDisable(currIndex >= src.length - 1)
setPrevDisable(currIndex <= 0)
}, [currIndex, src])
const {src, currIndex, flagToReverse} = props
return (
<ComponentContainer>
<PageContainer>
@ -76,15 +66,6 @@ function BookComponent(props: any) {
}
</Transition>
</PageContainer>
<BookComponentsController
prevDisable={prevDisable}
onPrevClick={()=> changePage(-1, true)}
nextDisable={nextDisable}
onNextClick={()=>changePage(1, false)}
{...props}
/>
</ComponentContainer>
)
}

View File

@ -1,15 +1,11 @@
import React, {useState, useEffect, useCallback} from 'react'
import React, {useState, useEffect} from 'react'
import {Transition, animated} from 'react-spring/renderprops'
import BookComponentsController from './BookComponentsController'
import {ComponentContainer, PageComponent, PageContainer} from './OnePageView'
import { IBookContext } from './BookComponent'
export default function TwoPagesView(props: any) {
let {src, currIndex, changePage, flagToReverse} = props
let {src, currIndex, flagToReverse} = props
const [pagesToshow, setPagesToShow] = useState<IBookContext[]>([])
const [prevDisable, setPrevDisable] = useState(true)
const [nextDisable, setNextDisable] = useState(false)
useEffect(()=>{
const shouldShowPage = (pageIndex: number)=>{
@ -30,19 +26,8 @@ export default function TwoPagesView(props: any) {
}
])
}
setPrevDisable(newCurrIndex <= 1)
setNextDisable(newCurrIndex >= src.length - 2)
}, [currIndex, src])
const pageChangeClick = useCallback((indexToGo, flagToReverse)=>{
const newIndex = currIndex + indexToGo
const shouldChangePage = newIndex >= 0 && newIndex < src.length
if(shouldChangePage){
changePage(indexToGo, flagToReverse)
}
}, [src.length, currIndex, changePage])
return (
<ComponentContainer>
<PageContainer>
@ -96,18 +81,6 @@ export default function TwoPagesView(props: any) {
}
</Transition>
</PageContainer>
<BookComponentsController
prevDisable={prevDisable}
onPrevClick={()=> {
pageChangeClick(-2, true)
}}
nextDisable={nextDisable}
onNextClick={()=>{
pageChangeClick(2, false)
}}
{...props}
/>
</ComponentContainer>
)
}

View File

@ -1,6 +1,6 @@
import React, {useCallback} from 'react'
import {Select} from 'antd'
import {IBookContext, bookViewModes} from './BookComponent'
import {IBookContext, getBookViewModes} from './BookComponent'
const {Option} = Select
@ -10,14 +10,15 @@ export default function ViewSwitcher(props: IBookContext) {
const viewModeChange = useCallback((mode) => {
setBookContextState({
mode
mode,
pagesToTurn: getBookViewModes().find(item=> item.value === mode)?.pagesToTurn || 0
})
},[setBookContextState])
return (
<Select value={mode} onSelect={viewModeChange}>
{
bookViewModes.map((item: any)=>{
getBookViewModes().map((item: any)=>{
return <Option value={item.value} key={item.value}>{item.text}</Option>
})
}

3
src/components/index.css Normal file
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@ -0,0 +1,3 @@
.jump-control .ant-input-number-handler-wrap{
display: none;
}