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// Copyright (c) 2016-present Mattermost, Inc. All Rights Reserved.
// See License.txt for license information.
import React from 'react';
import * as AsyncClient from 'utils/async_client.jsx';
import FileStore from 'stores/file_store.jsx';
import * as Utils from 'utils/utils.jsx';
export default class CommentedOnFilesMessageContainer extends React.Component {
static propTypes = {
parentPostChannelId: React.PropTypes.string.isRequired,
parentPostId: React.PropTypes.string.isRequired
}
constructor(props) {
super(props);
this.handleFileChange = this.handleFileChange.bind(this);
this.state = {
fileInfos: FileStore.getInfosForPost(this.props.parentPostId)
};
}
componentDidMount() {
FileStore.addChangeListener(this.handleFileChange);
if (!FileStore.hasInfosForPost(this.props.parentPostId)) {
AsyncClient.getFileInfosForPost(this.props.parentPostChannelId, this.props.parentPostId);
}
}
componentWillReceiveProps(nextProps) {
if (nextProps.parentPostId !== this.props.parentPostId) {
this.setState({
fileInfos: FileStore.getInfosForPost(this.props.parentPostId)
});
if (!FileStore.hasInfosForPost(this.props.parentPostId)) {
AsyncClient.getFileInfosForPost(this.props.parentPostChannelId, this.props.parentPostId);
}
}
}
shouldComponentUpdate(nextProps, nextState) {
if (nextProps.parentPostId !== this.props.parentPostId) {
return true;
}
if (nextProps.parentPostChannelId !== this.props.parentPostChannelId) {
return true;
}
// fileInfos are treated as immutable by the FileStore
if (nextState.fileInfos !== this.state.fileInfos) {
return true;
}
return false;
}
handleFileChange() {
this.setState({
fileInfos: FileStore.getInfosForPost(this.props.parentPostId)
});
}
componentWillUnmount() {
FileStore.removeChangeListener(this.handleFileChange);
}
render() {
let message = ' ';
if (this.state.fileInfos && this.state.fileInfos.length > 0) {
message = this.state.fileInfos[0].name;
if (this.state.fileInfos.length === 2) {
message += Utils.localizeMessage('post_body.plusOne', ' plus 1 other file');
} else if (this.state.fileInfos.length > 2) {
message += Utils.localizeMessage('post_body.plusMore', ' plus {count} other files').replace('{count}', (this.state.fileInfos.length - 1).toString());
}
}
return <span>{message}</span>;
}
}
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