75 lines
2.0 KiB
JavaScript
75 lines
2.0 KiB
JavaScript
import React from 'react';
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import PropTypes from 'prop-types';
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import { Text, TouchableOpacity, Platform } from 'react-native';
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import { emojify } from 'react-emojione';
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import { responsive } from 'react-native-responsive-ui';
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import { OptimizedFlatList } from 'react-native-optimized-flatlist';
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import styles from './styles';
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import CustomEmoji from './CustomEmoji';
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import scrollPersistTaps from '../../utils/scrollPersistTaps';
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const emojisPerRow = Platform.OS === 'ios' ? 8 : 9;
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const renderEmoji = (emoji, size) => {
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if (emoji.isCustom) {
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return <CustomEmoji style={[styles.customCategoryEmoji, { height: size - 8, width: size - 8 }]} emoji={emoji} />;
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}
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return (
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<Text style={[styles.categoryEmoji, { height: size, width: size, fontSize: size - 14 }]}>
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{emojify(`:${ emoji }:`, { output: 'unicode' })}
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</Text>
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);
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};
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@responsive
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export default class EmojiCategory extends React.Component {
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static propTypes = {
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emojis: PropTypes.any,
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window: PropTypes.any,
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onEmojiSelected: PropTypes.func,
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emojisPerRow: PropTypes.number,
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width: PropTypes.number
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};
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constructor(props) {
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super(props);
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const { width, height } = this.props.window;
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this.size = Math.min(this.props.width || width, height) / (this.props.emojisPerRow || emojisPerRow);
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this.emojis = [];
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}
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componentWillMount() {
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this.emojis = this.props.emojis;
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}
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shouldComponentUpdate() {
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return false;
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}
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renderItem(emoji, size) {
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return (
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<TouchableOpacity
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activeOpacity={0.7}
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key={emoji.isCustom ? emoji.content : emoji}
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onPress={() => this.props.onEmojiSelected(emoji)}
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>
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{renderEmoji(emoji, size)}
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</TouchableOpacity>);
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}
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render() {
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return (
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<OptimizedFlatList
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keyExtractor={item => (item.isCustom && item.content) || item}
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data={this.props.emojis}
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renderItem={({ item }) => this.renderItem(item, this.size)}
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numColumns={emojisPerRow}
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initialNumToRender={45}
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getItemLayout={(data, index) => ({ length: this.size, offset: this.size * index, index })}
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removeClippedSubviews
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{...scrollPersistTaps}
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/>
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);
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}
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}
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