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react-infinite-loader

An infinite loader react component based on react-visit

npm version

Install

npm install react-infinite-loader --save

Usage

Add the infinite loader component below the items in you list. When the loader is in view the onVisited event will fire for you to reload more data. Check out the example for more info.

import InfiniteLoader from 'react-infinite-loader'
import ReactDOM from 'react-dom'
import React, { Component, PropTypes } from 'react'

class TestComponent extends Component {

  componentDidMount() {
    this.loadItems()
  }

  loadItems() {
    /* just simulating a load of more items from an api here */
    setTimeout( () => {
      let items = this.state.items.slice()
      items = items.concat(this.getItems())
      this.setState({ items: items })
    }, 1000)
  }

  handleVisit () {
    this.loadItems()
  }

  getItems() {
    let items = []
    for(var i = 0; i < 10; i++) {
      items.push({ name: 'An item' })
    }
    return items
  }

  renderCards() {
    const { items } = this.state
    const cards = items.map((item, i) => {
      return (
        <div key={i}><h3>{item.name}</h3></div>
      )
    })
    return cards
  }

  render () {
    return (
      <div>
        { this.renderCards() }
        <InfiniteLoader onVisited={ () => this.handleVisit() } />
      </div>
    )
  }
}

ReactDOM.render(<TestComponent />, document.getElementById('root'))

Props

  • onVisited()

A function to call when the loader comes into the viewport. This is when you normally will load more items.

  • visitStyle

Style object to display the visit component, usually you want the visit component hidden, but may want to give it a margin bottom or negative bottom margin so it will be triggered earlier. Give the visitStyle a background color to see where it is triggered while testing. The element has the className visit if you need to style it with css.

  • loaderStyle

Style object for the loader, usually some styles for a loader or spinner element. styled-jsx is used for styling. To update the styles ...

  • containerElement

The dom element to set the scroll event on, e.g. document.querySelector('.container'). If no containerElement is set react-infinite-loader will attach the scroll event to window, which is usually what you want unless in the case of a modal.

Development

yarn
yarn dev

Test

yarn test

Build

yarn
yarn build

Publish

npm login
npm version patch
git add -A
git push origin master
npm publish

License

MIT

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a react infinite loader component

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