126 lines
3.1 KiB
JavaScript
126 lines
3.1 KiB
JavaScript
// @flow
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import React, { PureComponent } from 'react';
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import Emoji from 'react-emoji-render';
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import { smileys } from '../../smileys';
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/**
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* The type of the React {@code Component} props of {@link SmileysPanel}.
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*/
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type Props = {
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/**
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* Callback to invoke when a smiley is selected. The smiley will be passed
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* back.
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*/
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onSmileySelect: Function
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};
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/**
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* Implements a React Component showing smileys that can be be shown in chat.
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*
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* @augments Component
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*/
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class SmileysPanel extends PureComponent<Props> {
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/**
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* Initializes a new {@code SmileysPanel} instance.
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*
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* @param {*} props - The read-only properties with which the new instance
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* is to be initialized.
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*/
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constructor(props: Props) {
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super(props);
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// Bind event handler so it is only bound once for every instance.
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this._onClick = this._onClick.bind(this);
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this._onKeyPress = this._onKeyPress.bind(this);
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this._onEscKey = this._onEscKey.bind(this);
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}
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_onEscKey: (Object) => void;
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/**
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* KeyPress handler for accessibility.
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*
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* @param {Object} e - The key event to handle.
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*
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* @returns {void}
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*/
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_onEscKey(e) {
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// Escape handling does not work in onKeyPress
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if (e.key === 'Escape') {
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e.preventDefault();
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e.stopPropagation();
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this.props.onSmileySelect();
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}
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}
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_onKeyPress: (Object) => void;
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/**
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* KeyPress handler for accessibility.
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*
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* @param {Object} e - The key event to handle.
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*
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* @returns {void}
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*/
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_onKeyPress(e) {
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if (e.key === ' ') {
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e.preventDefault();
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this.props.onSmileySelect(e.target.id && smileys[e.target.id]);
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}
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}
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_onClick: (Object) => void;
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/**
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* Click handler for to select emoji.
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*
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* @param {Object} e - The key event to handle.
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*
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* @returns {void}
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*/
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_onClick(e) {
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e.preventDefault();
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this.props.onSmileySelect(e.currentTarget.id && smileys[e.currentTarget.id]);
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}
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/**
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* Implements React's {@link Component#render()}.
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*
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* @inheritdoc
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* @returns {ReactElement}
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*/
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render() {
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const smileyItems = Object.keys(smileys).map(smileyKey => (
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<div
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className = 'smileyContainer'
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id = { smileyKey }
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key = { smileyKey }
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onClick = { this._onClick }
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onKeyDown = { this._onEscKey }
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onKeyPress = { this._onKeyPress }
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role = 'option'
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tabIndex = { 0 }>
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<Emoji
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onlyEmojiClassName = 'smiley'
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text = { smileys[smileyKey] } />
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</div>
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));
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return (
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<div
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aria-orientation = 'horizontal'
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id = 'smileysContainer'
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onKeyDown = { this._onEscKey }
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role = 'listbox'
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tabIndex = { -1 }>
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{ smileyItems }
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</div>
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);
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}
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}
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export default SmileysPanel;
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