/
RevisionLoader.jsx
132 lines (108 loc) · 3.15 KB
/
RevisionLoader.jsx
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import React from 'react';
import PropTypes from 'prop-types';
import { Waypoint } from 'react-waypoint';
import { createSubscribedElement } from '../UnstatedUtils';
import GrowiRenderer from '../../util/GrowiRenderer';
import AppContainer from '../../services/AppContainer';
import RevisionRenderer from './RevisionRenderer';
/**
* Load data from server and render RevisionBody component
*/
class RevisionLoader extends React.Component {
constructor(props) {
super(props);
this.logger = require('@alias/logger')('growi:Page:RevisionLoader');
this.state = {
markdown: '',
isLoading: false,
isLoaded: false,
error: null,
};
this.loadData = this.loadData.bind(this);
this.onWaypointChange = this.onWaypointChange.bind(this);
}
componentWillMount() {
if (!this.props.lazy) {
this.loadData();
}
}
async loadData() {
if (!this.state.isLoaded && !this.state.isLoading) {
this.setState({ isLoading: true });
}
const requestData = {
page_id: this.props.pageId,
revision_id: this.props.revisionId,
};
// load data with REST API
try {
const res = await this.props.appContainer.apiGet('/revisions.get', requestData);
this.setState({
markdown: res.revision.body,
error: null,
});
if (this.props.onRevisionLoaded != null) {
this.props.onRevisionLoaded(res.revision);
}
}
catch (error) {
this.setState({ error });
}
finally {
this.setState({ isLoaded: true, isLoading: false });
}
}
onWaypointChange(event) {
if (event.currentPosition === Waypoint.above || event.currentPosition === Waypoint.inside) {
this.loadData();
}
}
render() {
// ----- before load -----
if (this.props.lazy && !this.state.isLoaded) {
return (
<Waypoint onPositionChange={this.onWaypointChange} bottomOffset="-100px">
<div className="wiki"></div>
</Waypoint>
);
}
// ----- loading -----
if (this.state.isLoading) {
return (
<div className="wiki">
<div className="text-muted text-center">
<i className="fa fa-2x fa-spinner fa-pulse mr-1"></i>
</div>
</div>
);
}
// ----- after load -----
let markdown = this.state.markdown;
if (this.state.error != null) {
markdown = `<span class="text-muted"><em>${this.state.error}</em></span>`;
}
return (
<RevisionRenderer
growiRenderer={this.props.growiRenderer}
markdown={markdown}
highlightKeywords={this.props.highlightKeywords}
/>
);
}
}
/**
* Wrapper component for using unstated
*/
const RevisionLoaderWrapper = (props) => {
return createSubscribedElement(RevisionLoader, props, [AppContainer]);
};
RevisionLoader.propTypes = {
appContainer: PropTypes.instanceOf(AppContainer).isRequired,
growiRenderer: PropTypes.instanceOf(GrowiRenderer).isRequired,
pageId: PropTypes.string.isRequired,
revisionId: PropTypes.string.isRequired,
lazy: PropTypes.bool,
onRevisionLoaded: PropTypes.func,
highlightKeywords: PropTypes.string,
};
export default RevisionLoaderWrapper;