377 lines
11 KiB
JavaScript
377 lines
11 KiB
JavaScript
// @flow
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import React, { Component } from 'react';
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import TextareaAutosize from 'react-textarea-autosize';
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import type { Dispatch } from 'redux';
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import { isMobileBrowser } from '../../../base/environment/utils';
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import { translate } from '../../../base/i18n';
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import { Icon, IconPlane, IconSmile } from '../../../base/icons';
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import { connect } from '../../../base/redux';
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import { areSmileysDisabled } from '../../functions';
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import SmileysPanel from './SmileysPanel';
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/**
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* The type of the React {@code Component} props of {@link ChatInput}.
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*/
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type Props = {
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/**
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* Invoked to send chat messages.
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*/
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dispatch: Dispatch<any>,
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/**
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* Optional callback to invoke when the chat textarea has auto-resized to
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* fit overflowing text.
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*/
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onResize: ?Function,
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/**
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* Callback to invoke on message send.
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*/
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onSend: Function,
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/**
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* Invoked to obtain translated strings.
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*/
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t: Function,
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/**
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* Whether chat emoticons are disabled.
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*/
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_areSmileysDisabled: boolean
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};
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/**
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* The type of the React {@code Component} state of {@link ChatInput}.
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*/
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type State = {
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/**
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* User provided nickname when the input text is provided in the view.
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*/
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message: string,
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/**
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* Whether or not the smiley selector is visible.
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*/
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showSmileysPanel: boolean
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};
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/**
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* Implements a React Component for drafting and submitting a chat message.
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*
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* @augments Component
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*/
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class ChatInput extends Component<Props, State> {
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_textArea: ?HTMLTextAreaElement;
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state = {
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message: '',
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showSmileysPanel: false
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};
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/**
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* Initializes a new {@code ChatInput} instance.
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*
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* @param {Object} props - The read-only properties with which the new
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* instance 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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this._textArea = null;
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// Bind event handlers so they are only bound once for every instance.
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this._onDetectSubmit = this._onDetectSubmit.bind(this);
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this._onMessageChange = this._onMessageChange.bind(this);
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this._onSmileySelect = this._onSmileySelect.bind(this);
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this._onSubmitMessage = this._onSubmitMessage.bind(this);
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this._onToggleSmileysPanel = this._onToggleSmileysPanel.bind(this);
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this._onEscHandler = this._onEscHandler.bind(this);
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this._onToggleSmileysPanelKeyPress = this._onToggleSmileysPanelKeyPress.bind(this);
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this._onSubmitMessageKeyPress = this._onSubmitMessageKeyPress.bind(this);
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this._setTextAreaRef = this._setTextAreaRef.bind(this);
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}
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/**
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* Implements React's {@link Component#componentDidMount()}.
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*
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* @inheritdoc
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*/
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componentDidMount() {
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if (isMobileBrowser()) {
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// Ensure textarea is not focused when opening chat on mobile browser.
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this._textArea && this._textArea.blur();
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}
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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 smileysPanelClassName = `${this.state.showSmileysPanel
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? 'show-smileys' : 'hide-smileys'} smileys-panel`;
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return (
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<div className = { `chat-input-container${this.state.message.trim().length ? ' populated' : ''}` }>
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<div id = 'chat-input' >
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{ this.props._areSmileysDisabled ? null : (
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<div className = 'smiley-input'>
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<div id = 'smileysarea'>
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<div id = 'smileys'>
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<div
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aria-expanded = { this.state.showSmileysPanel }
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aria-haspopup = 'smileysContainer'
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aria-label = { this.props.t('chat.smileysPanel') }
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className = 'smiley-button'
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onClick = { this._onToggleSmileysPanel }
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onKeyDown = { this._onEscHandler }
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onKeyPress = { this._onToggleSmileysPanelKeyPress }
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role = 'button'
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tabIndex = { 0 }>
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<Icon src = { IconSmile } />
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</div>
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</div>
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</div>
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<div
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className = { smileysPanelClassName } >
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<SmileysPanel
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onSmileySelect = { this._onSmileySelect } />
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</div>
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</div>
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) }
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<div className = 'usrmsg-form'>
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<TextareaAutosize
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autoComplete = 'off'
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autoFocus = { true }
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id = 'usermsg'
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maxRows = { 5 }
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onChange = { this._onMessageChange }
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onHeightChange = { this.props.onResize }
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onKeyDown = { this._onDetectSubmit }
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placeholder = { this.props.t('chat.messagebox') }
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ref = { this._setTextAreaRef }
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tabIndex = { 0 }
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value = { this.state.message } />
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</div>
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<div className = 'send-button-container'>
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<div
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aria-label = { this.props.t('chat.sendButton') }
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className = 'send-button'
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onClick = { this._onSubmitMessage }
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onKeyPress = { this._onSubmitMessageKeyPress }
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role = 'button'
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tabIndex = { this.state.message.trim() ? 0 : -1 } >
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<Icon src = { IconPlane } />
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</div>
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</div>
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</div>
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</div>
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);
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}
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/**
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* Place cursor focus on this component's text area.
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*
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* @private
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* @returns {void}
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*/
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_focus() {
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this._textArea && this._textArea.focus();
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}
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_onSubmitMessage: () => void;
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/**
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* Submits the message to the chat window.
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*
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* @returns {void}
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*/
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_onSubmitMessage() {
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const trimmed = this.state.message.trim();
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if (trimmed) {
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this.props.onSend(trimmed);
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this.setState({ message: '' });
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// Keep the textarea in focus when sending messages via submit button.
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this._focus();
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}
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}
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_onDetectSubmit: (Object) => void;
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/**
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* Detects if enter has been pressed. If so, submit the message in the chat
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* window.
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*
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* @param {string} event - Keyboard event.
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* @private
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* @returns {void}
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*/
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_onDetectSubmit(event) {
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// Composition events used to add accents to characters
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// despite their absence from standard US keyboards,
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// to build up logograms of many Asian languages
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// from their base components or categories and so on.
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if (event.isComposing || event.keyCode === 229) {
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// keyCode 229 means that user pressed some button,
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// but input method is still processing that.
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// This is a standard behavior for some input methods
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// like entering japanese or сhinese hieroglyphs.
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return;
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}
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if (event.key === 'Enter'
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&& event.shiftKey === false
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&& event.ctrlKey === false) {
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event.preventDefault();
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event.stopPropagation();
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this._onSubmitMessage();
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}
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}
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_onSubmitMessageKeyPress: (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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_onSubmitMessageKeyPress(e) {
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if (e.key === ' ' || e.key === 'Enter') {
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e.preventDefault();
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this._onSubmitMessage();
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}
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}
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_onMessageChange: (Object) => void;
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/**
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* Updates the known message the user is drafting.
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*
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* @param {string} event - Keyboard event.
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* @private
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* @returns {void}
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*/
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_onMessageChange(event) {
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this.setState({ message: event.target.value });
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}
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_onSmileySelect: (string) => void;
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/**
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* Appends a selected smileys to the chat message draft.
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*
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* @param {string} smileyText - The value of the smiley to append to the
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* chat message.
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* @private
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* @returns {void}
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*/
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_onSmileySelect(smileyText) {
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if (smileyText) {
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this.setState({
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message: `${this.state.message} ${smileyText}`,
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showSmileysPanel: false
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});
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} else {
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this.setState({
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showSmileysPanel: false
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});
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}
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this._focus();
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}
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_onToggleSmileysPanel: () => void;
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/**
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* Callback invoked to hide or show the smileys selector.
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*
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* @private
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* @returns {void}
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*/
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_onToggleSmileysPanel() {
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if (this.state.showSmileysPanel) {
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this._focus();
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}
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this.setState({ showSmileysPanel: !this.state.showSmileysPanel });
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}
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_onEscHandler: (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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_onEscHandler(e) {
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// Escape handling does not work in onKeyPress
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if (this.state.showSmileysPanel && e.key === 'Escape') {
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e.preventDefault();
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e.stopPropagation();
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this._onToggleSmileysPanel();
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}
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}
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_onToggleSmileysPanelKeyPress: (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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_onToggleSmileysPanelKeyPress(e) {
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if (e.key === ' ' || e.key === 'Enter') {
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e.preventDefault();
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this._onToggleSmileysPanel();
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}
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}
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_setTextAreaRef: (?HTMLTextAreaElement) => void;
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/**
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* Sets the reference to the HTML TextArea.
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*
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* @param {HTMLAudioElement} textAreaElement - The HTML text area element.
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* @private
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* @returns {void}
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*/
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_setTextAreaRef(textAreaElement: ?HTMLTextAreaElement) {
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this._textArea = textAreaElement;
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}
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}
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/**
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* Function that maps parts of Redux state tree into component props.
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*
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* @param {Object} state - Redux state.
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* @private
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* @returns {{
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* _areSmileysDisabled: boolean
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* }}
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*/
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const mapStateToProps = state => {
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return {
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_areSmileysDisabled: areSmileysDisabled(state)
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};
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};
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export default translate(connect(mapStateToProps)(ChatInput));
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