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// Copyright (c) 2016 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 FileAttachmentList from './file_attachment_list.jsx';
export default class FileAttachmentListContainer extends React.Component {
static propTypes = {
post: React.PropTypes.object.isRequired,
compactDisplay: React.PropTypes.bool.isRequired
}
constructor(props) {
super(props);
this.handleFileChange = this.handleFileChange.bind(this);
this.state = {
fileInfos: FileStore.getInfosForPost(props.post.id)
};
}
componentDidMount() {
FileStore.addChangeListener(this.handleFileChange);
if (this.props.post.id && !FileStore.hasInfosForPost(this.props.post.id)) {
AsyncClient.getFileInfosForPost(this.props.post.channel_id, this.props.post.id);
}
}
componentWillReceiveProps(nextProps) {
if (nextProps.post.id !== this.props.post.id) {
this.setState({
fileInfos: FileStore.getInfosForPost(nextProps.post.id)
});
if (nextProps.post.id && !FileStore.hasInfosForPost(nextProps.post.id)) {
AsyncClient.getFileInfosForPost(nextProps.post.channel_id, nextProps.post.id);
}
}
}
shouldComponentUpdate(nextProps, nextState) {
if (this.props.post.id !== nextProps.post.id) {
return true;
}
if (this.props.compactDisplay !== nextProps.compactDisplay) {
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.post.id)
});
}
componentWillUnmount() {
FileStore.removeChangeListener(this.handleFileChange);
}
render() {
let fileCount = 0;
if (this.props.post.file_ids) {
fileCount = this.props.post.file_ids.length;
} else if (this.props.post.filenames) {
fileCount = this.props.post.filenames.length;
}
return (
<FileAttachmentList
fileCount={fileCount}
fileInfos={this.state.fileInfos}
compactDisplay={this.props.compactDisplay}
/>
);
}
}
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