Я пытаюсь активировать функциональность компонента shuffle.js (поиск, фильтрация и сортировка) с помощью response.js. Однако документация на сайте очень ограничена. Я знаю, что мне нужно добавить поисковый ввод и некоторые кнопки, чтобы делать то, что я хочу, но я не уверен, как соединить вход моего окна поиска и другие события кнопок, чтобы манипулировать фотосеткой (или другими элементами в контейнере), которая отрисовывается по реакции.
Я импортировал shuffle.js как модуль узла и инициализировал его на странице реакции. Кажется, что основной код, который они предоставляют, работает и отображает сетку фотографий, но это почти все. Я также хочу реализовать функции поиска, фильтрации и сортировки, но нет документации о том, как это сделать, вact.js. Код ниже показывает реализацию фотосетки, но не более того.
import React, {Component} from "react";
import Shuffle from 'shufflejs';
class PhotoGrid extends React.Component {
constructor(props) {
super(props);
const grayPixel = 'data:image/gif;base64,R0lGODlhAQABAIAAAMLCwgAAACH5BAAAAAAALAAAAAABAAEAAAICRAEAOw==';
const blackPixel = 'data:image/gif;base64,R0lGODlhAQABAIAAAAUEBAAAACwAAAAAAQABAAACAkQBADs=';
const greenPixel = 'data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mO02Vz4HwAE9AJhcLBN6AAAAABJRU5ErkJggg==';
this.state = {
photos: [{
id: 4,
src: grayPixel
},
{
id: 5,
src: blackPixel
},
{
id: 6,
src: greenPixel
},
],
searchTerm: '',
sortByTitle: '',
sortByDate: '',
sortByPopularity: '',
filterCategory: ''
};
this.filters = {
cat1: [],
cat2: [],
};
this.wb = this.props.dataWB;
this.element = React.createRef();
this.sizer = React.createRef();
this._handleSearchKeyup = this._handleSearchKeyup.bind(this);
this._handleSortChange = this._handleSortChange.bind(this);
this._handleCategory1Change = this._handleCategory1Change.bind(this);
this._handleCategory2Change = this._handleCategory2Change.bind(this);
this._getCurrentCat1Filters = this._getCurrentCat1Filters.bind(this);
this._getCurrentCat2Filters = this._getCurrentCat2Filters.bind(this);
}
/**
* Fake and API request for a set of images.
* @return {Promise<Object[]>} A promise which resolves with an array of objects.
*/
_fetchPhotos() {
return new Promise((resolve) => {
setTimeout(() => {
resolve([{
id: 4,
username: '@stickermule',
title:'puss',
date_created: '2003-09-01',
popularity: '233',
category1:'animal',
category2:'mammals',
name: 'Sticker Mule',
src: 'https://images.unsplash.com/photo-1484244233201-29892afe6a2c?ixlib=rb-0.3.5&q=80&fm=jpg&crop=entropy&cs=tinysrgb&w=800&h=600&fit=crop&s=14d236624576109b51e85bd5d7ebfbfc'
},
{
id: 5,
username: '@prostoroman',
date_created: '2003-09-02',
popularity: '232',
category1:'industry',
category2:'mammals',
title:'city',
name: 'Roman Logov',
src: 'https://images.unsplash.com/photo-1465414829459-d228b58caf6e?ixlib=rb-0.3.5&q=80&fm=jpg&crop=entropy&cs=tinysrgb&w=800&h=600&fit=crop&s=7a7080fc0699869b1921cb1e7047c5b3'
},
{
id: 6,
username: '@richienolan',
date_created: '2003-09-03',
popularity: '231',
title:'nature',
category1:'art',
category2:'insect',
name: 'Richard Nolan',
src: 'https://images.unsplash.com/photo-1478033394151-c931d5a4bdd6?ixlib=rb-0.3.5&q=80&fm=jpg&crop=entropy&cs=tinysrgb&w=800&h=600&fit=crop&s=3c74d594a86e26c5a319f4e17b36146e'
}
]);
}, 300);
});
}
_whenPhotosLoaded(photos) {
return Promise.all(photos.map(photo => new Promise((resolve) => {
const image = document.createElement('img');
image.src = photo.src;
if (image.naturalWidth > 0 || image.complete) {
resolve(photo);
} else {
image.onload = () => {
resolve(photo);
};
}
})));
}
_handleSortChange(evt) {
var value = evt.target.value.toLowerCase();
function sortByDate(element) {
return element.getAttribute('data-created');
}
function sortByPopularity(element) {
return element.getAttribute('data-popularity');
}
function sortByTitle(element) {
return element.getAttribute('data-title').toLowerCase();
}
let options;
if (value == 'date-created') {
options = {
reverse: true,
by: sortByDate,
};
} else if (value == 'title') {
options = {
by: sortByTitle,
};
} else if (value == 'popularity') {
options = {
reverse: true,
by: sortByPopularity,
};
} else if (value == 'default') {
this.shuffle.filter('all');
} else {
options = {};
}
this.shuffle.sort(options);
};
_getCurrentCat1Filters = function () {
return this.filters.cat1.filter(function (button) {
return button.classList.contains('active');
}).map(function (button) {
console.log('button value: '+button.getAttribute('data-value'))
return button.getAttribute('data-value');
});
};
_getCurrentCat2Filters = function () {
return this.filters.cat2.filter(function (button) {
return button.classList.contains('active');
}).map(function (button) {
console.log('button value: '+button.getAttribute('data-value'))
// console.log('button value: '+button.getAttribute('data-value'))
return button.getAttribute('data-value');
});
};
_handleCategory1Change = function (evt) {
var button = evt.currentTarget;
console.log(button)
// Treat these buttons like radio buttons where only 1 can be selected.
if (button.classList.contains('active')) {
button.classList.remove('active');
} else {
this.filters.cat1.forEach(function (btn) {
btn.classList.remove('active');
});
button.classList.add('active');
}
this.filters.cat1 = this._getCurrentCat1Filters();
console.log('current cat contains : '+this.filters.cat1);
this.filter();
};
/**
* A color button was clicked. Update filters and display.
* @param {Event} evt Click event object.
*/
_handleCategory2Change = function (evt) {
var button = evt.currentTarget;
// Treat these buttons like radio buttons where only 1 can be selected.
if (button.classList.contains('active')) {
button.classList.remove('active');
} else {
this.filters.cat2.forEach(function (btn) {
btn.classList.remove('active');
});
button.classList.add('active');
}
this.filters.cat2 = this._getCurrentCat2Filters();
console.log('current cat contains : '+this.filters.cat2);
this.filter();
};
filter = function () {
if (this.hasActiveFilters()) {
this.shuffle.filter(this.itemPassesFilters.bind(this));
} else {
this.shuffle.filter(Shuffle.ALL_ITEMS);
}
};
itemPassesFilters = function (element) {
var cat1 = this.filters.cat1;
var cat2 = this.filters.cat2;
var cat1 = element.getAttribute('data-category1');
var cat2 = element.getAttribute('data-category2');
// If there are active shape filters and this shape is not in that array.
if (cat1.length > 0 && !cat1.includes(cat1)) {
return false;
}
// If there are active color filters and this color is not in that array.
if (cat2.length > 0 && !cat2.includes(cat2)) {
return false;
}
return true;
};
/**
* If any of the arrays in the `filters` property have a length of more than zero,
* that means there is an active filter.
* @return {boolean}
*/
hasActiveFilters = function () {
return Object.keys(this.filters).some(function (key) {
return this.filters[key].length > 0;
}, this);
};
_handleSearchKeyup(event) {
this.setState({
searchTerm: event.target.value.toLowerCase()
}, () => {
this.shuffle.filter((element) => {
return element.dataset.name.toLowerCase().includes(this.state.searchTerm) || element.dataset.username.toLowerCase().includes(this.state.searchTerm);
})
})
}
componentDidMount() {
// The elements are in the DOM, initialize a shuffle instance.
this.shuffle = new Shuffle(this.element.current, {
itemSelector: '.js-item',
sizer: this.sizer.current,
});
// Kick off the network request and update the state once it returns.
this._fetchPhotos()
.then(this._whenPhotosLoaded.bind(this))
.then((photos) => {
this.setState({
photos
});
});
}
componentDidUpdate() {
// Notify shuffle to dump the elements it's currently holding and consider
// all elements matching the `itemSelector` as new.
this.shuffle.resetItems();
}
componentWillUnmount() {
// Dispose of shuffle when it will be removed from the DOM.
this.shuffle.destroy();
this.shuffle = null;
}
render() {
return (
<div>
<div id='searchBar'>
<input type="text" className='js-shuffle-search' onChange={ this._handleSearchKeyup } value={ this.state.searchTerm } />
</div>
<div id='gridActions'>
<h2>Filter By cat 1</h2>
<button onClick={ this._handleCategory1Change } value='all'>All</button>
<button onClick={ this._handleCategory1Change } value='art'>Art</button>
<button onClick={ this._handleCategory1Change } value='industry'>Industry</button>
<button onClick={ this._handleCategory1Change } value='animal'>Animal</button>
<h2>Filter By cat 2</h2>
<button onClick={ this._handleCategory2Change } value='all'>All</button>
<button onClick={ this._getCurrentCat1Filters } value='mammals'>Mammals</button>
<button onClick={ this._getCurrentCat2Filters } value='insects'>Insects</button>
<h2>Sort By</h2>
<button onClick={ this._handleSortChange } value='default'>Default</button>
<button onClick={ this._handleSortChange } value='date-created'>By Date</button>
<button onClick={ this._handleSortChange } value='title'>By Title</button>
<button onClick={ this._handleSortChange } value='popularity'>By Popularity</button>
</div>
<div ref={ this.element } id='grid' className="row my-shuffle-container shuffle"> {
this.state.photos.map(image =>
<PhotoItem { ...image } />)}
<div ref={ this.sizer } className="col-1@xs col-1@sm photo-grid__sizer"></div>
</div>
</div>
);
}
}
function PhotoItem({id, src, category1, category2, date_created, popularity, title, name, username }) {
return (
<div key={id}
className="col-lg-3 js-item"
data-name={name}
data-title={title}
data-date-created={date_created}
data-popularity={popularity}
data-category1={category1}
data-cetagory2={category2}
data-username={username}>
<img src={src} style={{width : "100%",height :"100%"}}/>
</div>
)
}
export default PhotoGrid;
Фотосетка сейчас ничего не делает, просто показывает фотографии, которые я не могу найти, отфильтровать и отсортировать.