jiti-meet/react/features/chat/components/web/ChatInput.js

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// @flow
import React, { Component } from 'react';
import { connect } from 'react-redux';
import Emoji from 'react-emoji-render';
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import type { Dispatch } from 'redux';
import { sendMessage } from '../../actions';
import SmileysPanel from './SmileysPanel';
/**
* The type of the React {@code Component} props of {@link ChatInput}.
*/
type Props = {
/**
* Invoked to send chat messages.
*/
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dispatch: Dispatch<any>,
/**
* Optional callback to get a reference to the chat input element.
*/
getChatInputRef?: Function
};
/**
* The type of the React {@code Component} state of {@link ChatInput}.
*/
type State = {
/**
* User provided nickname when the input text is provided in the view.
*/
message: string,
/**
* Whether or not the smiley selector is visible.
*/
showSmileysPanel: boolean
};
/**
* Implements a React Component for drafting and submitting a chat message.
*
* @extends Component
*/
class ChatInput extends Component<Props, State> {
_textArea: ?HTMLTextAreaElement;
state = {
message: '',
showSmileysPanel: false
};
/**
* Initializes a new {@code ChatInput} instance.
*
* @param {Object} props - The read-only properties with which the new
* instance is to be initialized.
*/
constructor(props: Props) {
super(props);
this._textArea = null;
// Bind event handlers so they are only bound once for every instance.
this._onDetectSubmit = this._onDetectSubmit.bind(this);
this._onMessageChange = this._onMessageChange.bind(this);
this._onSmileySelect = this._onSmileySelect.bind(this);
this._onToggleSmileysPanel = this._onToggleSmileysPanel.bind(this);
this._setTextAreaRef = this._setTextAreaRef.bind(this);
}
/**
* Implements React's {@link Component#componentDidMount()}.
*
* @inheritdoc
*/
componentDidMount() {
/**
* HTML Textareas do not support autofocus. Simulate autofocus by
* manually focusing.
*/
this.focus();
}
/**
* Implements React's {@link Component#render()}.
*
* @inheritdoc
* @returns {ReactElement}
*/
render() {
const smileysPanelClassName = `${this.state.showSmileysPanel
? 'show-smileys' : 'hide-smileys'} smileys-panel`;
return (
<div id = 'chat-input' >
<div className = 'smiley-input'>
<div id = 'smileysarea'>
<div id = 'smileys'>
<Emoji
onClick = { this._onToggleSmileysPanel }
text = ':)' />
</div>
</div>
<div className = { smileysPanelClassName }>
<SmileysPanel
onSmileySelect = { this._onSmileySelect } />
</div>
</div>
<div className = 'usrmsg-form'>
<textarea
data-i18n = '[placeholder]chat.messagebox'
id = 'usermsg'
onChange = { this._onMessageChange }
onKeyDown = { this._onDetectSubmit }
placeholder = { 'Enter Text...' }
ref = { this._setTextAreaRef }
value = { this.state.message } />
</div>
</div>
);
}
/**
* Removes cursor focus on this component's text area.
*
* @returns {void}
*/
blur() {
this._textArea && this._textArea.blur();
}
/**
* Place cursor focus on this component's text area.
*
* @returns {void}
*/
focus() {
this._textArea && this._textArea.focus();
}
_onDetectSubmit: (Object) => void;
/**
* Detects if enter has been pressed. If so, submit the message in the chat
* window.
*
* @param {string} event - Keyboard event.
* @private
* @returns {void}
*/
_onDetectSubmit(event) {
if (event.keyCode === 13
&& event.shiftKey === false) {
event.preventDefault();
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const trimmed = this.state.message.trim();
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if (trimmed) {
this.props.dispatch(sendMessage(trimmed));
this.setState({ message: '' });
}
}
}
_onMessageChange: (Object) => void;
/**
* Updates the known message the user is drafting.
*
* @param {string} event - Keyboard event.
* @private
* @returns {void}
*/
_onMessageChange(event) {
this.setState({ message: event.target.value });
}
_onSmileySelect: (string) => void;
/**
* Appends a selected smileys to the chat message draft.
*
* @param {string} smileyText - The value of the smiley to append to the
* chat message.
* @private
* @returns {void}
*/
_onSmileySelect(smileyText) {
this.setState({
message: `${this.state.message} ${smileyText}`,
showSmileysPanel: false
});
this.focus();
}
_onToggleSmileysPanel: () => void;
/**
* Callback invoked to hide or show the smileys selector.
*
* @private
* @returns {void}
*/
_onToggleSmileysPanel() {
this.setState({ showSmileysPanel: !this.state.showSmileysPanel });
this.focus();
}
_setTextAreaRef: (?HTMLTextAreaElement) => void;
/**
* Sets the reference to the HTML TextArea.
*
* @param {HTMLAudioElement} textAreaElement - The HTML text area element.
* @private
* @returns {void}
*/
_setTextAreaRef(textAreaElement: ?HTMLTextAreaElement) {
this._textArea = textAreaElement;
if (this.props.getChatInputRef) {
this.props.getChatInputRef(textAreaElement);
}
}
}
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// $FlowExpectedError
export default connect()(ChatInput);