82 lines
1.9 KiB
JavaScript
82 lines
1.9 KiB
JavaScript
// @flow
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import React from 'react';
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import LoadingScreen from 'component/common/loading-screen';
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import MarkdownPreview from 'component/common/markdown-preview';
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import CodeViewer from 'component/viewers/codeViewer';
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import * as RENDER_MODES from 'constants/file_render_modes';
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type Props = {
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theme: string,
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renderMode: string,
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source: {
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file: (?string) => any,
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stream: string,
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contentType: string,
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},
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};
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type State = {
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error: boolean,
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loading: boolean,
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content: ?string,
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};
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class DocumentViewer extends React.PureComponent<Props, State> {
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constructor(props: Props) {
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super(props);
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this.state = {
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error: false,
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loading: true,
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content: null,
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};
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}
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componentDidMount() {
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const { source } = this.props;
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if (source && source.file) {
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const stream = source.file('utf8');
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let data = '';
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stream.on('data', (chunk) => {
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data += chunk;
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});
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stream.on('end', () => {
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this.setState({ content: data, loading: false });
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});
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stream.on('error', () => {
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this.setState({ error: true, loading: false });
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});
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}
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}
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renderDocument() {
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const { content } = this.state;
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const { source, theme, renderMode } = this.props;
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const { contentType } = source;
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return renderMode === RENDER_MODES.MARKDOWN ? (
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<MarkdownPreview content={content} isMarkdownPost promptLinks />
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) : (
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<CodeViewer value={content} contentType={contentType} theme={theme} />
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);
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}
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render() {
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const { error, content } = this.state;
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const isReady = content && !error;
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const errorMessage = __("Sorry, looks like we can't load the document.");
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return (
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<div className="file-viewer file-viewer--document">
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{error && <LoadingScreen status={errorMessage} spinner={!error} />}
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{isReady && this.renderDocument()}
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</div>
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);
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}
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}
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export default DocumentViewer;
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