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// Copyright (c) 2015 Mattermost, Inc. All Rights Reserved.
// See License.txt for license information.
import SocketStore from '../stores/socket_store.jsx';
import UserStore from '../stores/user_store.jsx';
import Constants from '../utils/constants.jsx';
const SocketEvents = Constants.SocketEvents;
export default class MsgTyping extends React.Component {
constructor(props) {
super(props);
this.onChange = this.onChange.bind(this);
this.updateTypingText = this.updateTypingText.bind(this);
this.componentWillReceiveProps = this.componentWillReceiveProps.bind(this);
this.typingUsers = {};
this.state = {
text: ''
};
}
componentDidMount() {
SocketStore.addChangeListener(this.onChange);
}
componentWillReceiveProps(nextProps) {
if (this.props.channelId !== nextProps.channelId) {
for (const u in this.typingUsers) {
if (!this.typingUsers.hasOwnProperty(u)) {
continue;
}
clearTimeout(this.typingUsers[u]);
}
this.typingUsers = {};
this.setState({text: ''});
}
}
componentWillUnmount() {
SocketStore.removeChangeListener(this.onChange);
}
onChange(msg) {
let username = 'Someone';
if (msg.action === SocketEvents.TYPING &&
this.props.channelId === msg.channel_id &&
this.props.parentId === msg.props.parent_id) {
if (UserStore.hasProfile(msg.user_id)) {
username = UserStore.getProfile(msg.user_id).username;
}
if (this.typingUsers[username]) {
clearTimeout(this.typingUsers[username]);
}
this.typingUsers[username] = setTimeout(function myTimer(user) {
delete this.typingUsers[user];
this.updateTypingText();
}.bind(this, username), Constants.UPDATE_TYPING_MS);
this.updateTypingText();
} else if (msg.action === SocketEvents.POSTED && msg.channel_id === this.props.channelId) {
if (UserStore.hasProfile(msg.user_id)) {
username = UserStore.getProfile(msg.user_id).username;
}
clearTimeout(this.typingUsers[username]);
delete this.typingUsers[username];
this.updateTypingText();
}
}
updateTypingText() {
const users = Object.keys(this.typingUsers);
let text = '';
switch (users.length) {
case 0:
text = '';
break;
case 1:
text = users[0] + ' is typing...';
break;
default: {
const last = users.pop();
text = users.join(', ') + ' and ' + last + ' are typing...';
break;
}
}
this.setState({text});
}
render() {
return (
<span className='msg-typing'>{this.state.text}</span>
);
}
}
MsgTyping.propTypes = {
channelId: React.PropTypes.string,
parentId: React.PropTypes.string
};
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