ensl_gathers/app/javascripts/components/message.js
2016-04-19 00:59:05 +01:00

479 lines
10 KiB
JavaScript

const React = require("react");
const moment = require("moment");
const ReactDOM = require("react-dom");
const Ps = require("perfect-scrollbar");
const ReactEmoji = require("react-emoji");
const ReactAutolink = require("react-autolink");
const MessageBrowser = React.createClass({
getInitialState() {
return {
browserState: "",
messages: [],
page: 0,
limit: 250,
search: ""
}
},
handleNextPage(e) {
e.preventDefault();
const page = this.state.page;
this.setState({ page: page + 1 });
this.loadMessages();
},
handlePreviousPage(e) {
e.preventDefault();
const page = this.state.page;
if (page < 1) return;
this.setState({ page: page - 1 });
this.loadMessages();
},
pageHandlers() {
let previous;
if (this.state.page > 0) {
previous = (
<a className="btn btn-xs btn-primary add-right"
onClick={this.handlePreviousPage}>Prev</a>
);
}
let next;
if (this.state.messages.length === this.state.limit) {
next = (
<a className="btn btn-xs btn-primary"
onClick={this.handleNextPage}>Next</a>
);
}
return (
<div>
{previous}
<span className="add-right">
{this.state.page}
</span>
{next}
</div>
);
},
loadMessages() {
const limit = this.state.limit;
const page = this.state.page;
let data = {
limit: limit,
page: page
};
if (this.state.search.length) {
data.query = this.state.search;
}
this.setState({ browserState: "Retrieving messages"});
$.ajax({
url: "/api/messages",
data: data
})
.done(data => {
this.setState({
messages: data.messages,
browserState: ""
});
})
.fail(error => {
console.error(error);
this.setState({
browserState: `Unable to retrieve messages.`
});
})
},
componentDidMount() {
this.loadMessages();
},
updateLimit(e) {
let newLimit = parseInt(e.target.value, 10);
if (isNaN(newLimit) || newLimit > 250) newLimit = 250;
this.setState({ limit: newLimit });
},
updateSearch(e) {
this.setState({ search: e.target.value });
},
render() {
let browserState;
if (this.state.browserState.length) {
browserState = (
<div className="col-xs-7">
<div className="well">{this.state.browserState}</div>
</div>
);
}
const messages = this.state.messages.map(message => {
return (
<tr key={message._id}>
<td className="col-xs-2">{(new Date(message.createdAt)).toString()}</td>
<td className="col-xs-3">{message.author.username}</td>
<td className="col-xs-5">{message.content}</td>
<td className="col-xs-2">{message._id}</td>
</tr>
);
});
return (
<div className="row">
<div className="col-xs-5">
<div className="form-horizontal">
<div className="form-group">
<label className="col-sm-3 control-label">Max Results</label>
<div className="col-sm-9">
<input type="number" className="form-control"
onChange={this.updateLimit}
value={this.state.limit}></input>
</div>
</div>
<div className="form-group">
<label className="col-sm-3 control-label">Search Filter</label>
<div className="col-sm-9">
<input type="text" className="form-control"
onChange={this.updateSearch}
value={this.state.search}></input>
</div>
</div>
<div className="form-group">
<div className="col-sm-offset-3 col-sm-9">
<button
className="btn btn-primary"
onClick={this.loadMessages}>Search</button>
</div>
</div>
<div className="row">
<div className="col-sm-offset-3 col-sm-9">
<p>Page Control</p>
{this.pageHandlers()}
</div>
</div>
</div>
</div>
{browserState}
<div className="col-xs-12">
<table className="table">
<thead>
<tr>
<th>Date</th>
<th>Author</th>
<th>Message</th>
<th>ID</th>
</tr>
</thead>
<tbody>
{messages}
</tbody>
</table>
</div>
</div>
);
}
});
const Chatroom = exports.Chatroom = React.createClass({
propTypes: {
messages: React.PropTypes.array.isRequired,
socket: React.PropTypes.object.isRequired,
user: React.PropTypes.object.isRequired
},
getInitialState() {
return {
autoScroll: true
};
},
componentDidMount() {
let self = this;
this.scrollListener = _.debounce((event) => {
self.temporarilyDisableAutoScroll(event);
}, 300, {
leading: false,
trailing: true
});
let node = ReactDOM.findDOMNode(this.refs.messageContainer);
node.addEventListener('scroll', this.scrollListener);
this.scrollToBottom();
},
componentWillUnmount() {
node.removeEventListener('scroll', this.scrollListener);
clearTimeout(this.disableScrollTimer);
},
loadMoreMessages() {
const earliestMessage = this.props.messages[0];
if (earliestMessage === undefined) return;
this.props.socket.emit("message:refresh", {
before: earliestMessage.createdAt
});
},
sendMessage(message) {
this.props.socket.emit("newMessage", {message: message});
},
clearAutoScrollTimeout() {
if (this.disableScrollTimer) clearTimeout(this.disableScrollTimer);
},
temporarilyDisableAutoScroll(event) {
let self = this;
let node = event.target;
if (node) {
if (node.scrollHeight - node.scrollTop === node.clientHeight) {
this.setState({ autoScroll: true });
this.clearAutoScrollTimeout();
}
if (node.scrollHeight - node.scrollTop - node.clientHeight < 50) return;
}
this.setState({ autoScroll: false });
this.clearAutoScrollTimeout();
this.disableScrollTimer = setTimeout(() => {
self.setState({
autoScroll: true
})
}, 10000);
},
componentDidUpdate(prevProps) {
if (prevProps.messages.length < this.props.messages.length) {
this.scrollToBottom();
}
},
scrollToBottom() {
if (!this.state.autoScroll) return;
let node = ReactDOM.findDOMNode(this.refs.messageContainer);
node.scrollTop = node.scrollHeight;
},
render() {
const socket = this.props.socket;
const messages = this.props.messages.map(message => {
if (message) {
return <ChatMessage message={message}
key={message._id}
socket={socket}
user={this.props.user} />
}
});
return (
<div>
<ul className="chat" id="chatmessages" ref="messageContainer">
<li className="text-center">
<a href="#"
onClick={this.loadMoreMessages}
className="btn btn-primary btn-xs">
Load more messages
</a>
</li>
{messages}
</ul>
<div>
<MessageBar socket={socket}/>
</div>
</div>
);
}
});
const imgurRegex = /^(https?:\/\/i\.imgur\.com\/\S*\.(jpg|png))$/i;
const ChatMessage = React.createClass({
propTypes: {
user: React.PropTypes.object.isRequired,
socket: React.PropTypes.object.isRequired,
message: React.PropTypes.object.isRequired
},
mixins: [
ReactAutolink,
ReactEmoji
],
getInitialState() {
return {
createdAt: ""
}
},
messageContent: function () {
let self = this;
let message = self.props.message.content
if (message.match(imgurRegex)) {
return (
<div className="imgur-container">
<a href={message} target="_blank">
<img className="imgur-chat" src={message} />
</a>
</div>
);
}
return (
<p className="wordwrap">
{
self.autolink(message, {
target: "_blank",
rel: "nofollow"
}).map((elem) => {
if (_.isString(elem)) {
return self.emojify(elem);
} else {
return elem;
}
})
}
</p>
);
},
render() {
let deleteButton;
let user = this.props.user;
if (user && user.admin) {
deleteButton = <DeleteMessageButton messageId={this.props.message._id}
socket={this.props.socket}/>;
}
return (
<li className="left clearfix">
<span className="chat-img pull-left">
<img
src={this.props.message.author.avatar}
alt="User Avatar"
className="chat-avatar" />
</span>
<div className="chat-body clearfix">
<div className="header">
<strong className="primary-font">
{this.props.message.author.username}
</strong>
<small className="pull-right text-muted">
<span className="hidden-xs">
{moment(this.props.message.createdAt).format("hh:mm DD/MM")}&nbsp;
</span>
{deleteButton}
</small>
</div>
{this.messageContent()}
</div>
</li>
);
}
});
const DeleteMessageButton = React.createClass({
propTypes: {
socket: React.PropTypes.object.isRequired
},
handleClick (e) {
e.preventDefault();
this.props.socket.emit("message:delete", {
id: this.props.messageId
});
},
render() {
return (
<a href="#" onClick={this.handleClick}>
<i className="fa fa-trash-o"></i>
</a>
);
}
})
const MessageBar = React.createClass({
propTypes: {
socket: React.PropTypes.object.isRequired
},
sendMessage(content) {
this.props.socket.emit("message:new", {
content: content
});
},
getInitialState() {
return {
statusMessage: null
};
},
checkInputLength() {
const input = ReactDOM.findDOMNode(this.refs.content).value;
const currentStatusMessage = this.state.statusMessage;
if (input.length > 256) {
return this.setState({
statusMessage: "Maximum of 256 characters will be saved"
})
}
if (currentStatusMessage !== null) {
this.setState({
statusMessage: null
});
}
},
handleInputChange() {
// Noop, later assigned as debounced method in componentWillMount
},
handleSubmit(e) {
e.preventDefault();
let content = ReactDOM.findDOMNode(this.refs.content).value.trim();
if (!content) return;
ReactDOM.findDOMNode(this.refs.content).value = '';
this.sendMessage(content);
return;
},
componentWillMount() {
this.handleInputChange = _.debounce(this.checkInputLength, {
leading: false,
trailing: true
});
},
render() {
let statusMessage;
if (this.state.statusMessage !== null) {
statusMessage = <div className="input-group">
<small>{this.state.statusMessage}</small>
</div>;
}
return (
<form onSubmit={this.handleSubmit} autoComplete="off">
<div className="input-group">
<input
id="btn-input"
type="text"
className="form-control"
ref="content"
onChange={this.handleInputChange}
autoComplete="off"
placeholder="Be polite please..." />
<span className="input-group-btn">
<input
type="submit"
className="btn btn-primary"
id="btn-chat"
value="Send" />
</span>
</div>
{statusMessage}
</form>
);
}
});