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import {
ALink,
constants as sharedConstants,
HeaderSizes,
MarkdownSection,
NestedSidebarMenu,
utils as sharedUtils,
} from '@0xproject/react-shared';
import { ObjectMap } from '@0xproject/types';
import * as _ from 'lodash';
import CircularProgress from 'material-ui/CircularProgress';
import * as React from 'react';
import { SidebarHeader } from 'ts/components/documentation/sidebar_header';
import { Container } from 'ts/components/ui/container';
import { DevelopersPage } from 'ts/pages/documentation/developers_page';
import { Dispatcher } from 'ts/redux/dispatcher';
import { Article, ArticlesBySection, Deco, Key, ScreenWidths } from 'ts/types';
import { backendClient } from 'ts/utils/backend_client';
import { constants } from 'ts/utils/constants';
import { Translate } from 'ts/utils/translate';
import { utils } from 'ts/utils/utils';
const WIKI_NOT_READY_BACKOUT_TIMEOUT_MS = 5000;
export interface WikiProps {
source: string;
location: Location;
dispatcher: Dispatcher;
translate: Translate;
screenWidth: ScreenWidths;
}
interface WikiState {
articlesBySection: ArticlesBySection;
isHoveringSidebar: boolean;
}
export class Wiki extends React.Component<WikiProps, WikiState> {
private _wikiBackoffTimeoutId: number;
private _isUnmounted: boolean;
constructor(props: WikiProps) {
super(props);
this._isUnmounted = false;
this.state = {
articlesBySection: undefined,
isHoveringSidebar: false,
};
}
public componentDidMount(): void {
window.addEventListener('hashchange', this._onHashChanged.bind(this), false);
}
public componentWillMount(): void {
// tslint:disable-next-line:no-floating-promises
this._fetchArticlesBySectionAsync();
}
public componentWillUnmount(): void {
this._isUnmounted = true;
clearTimeout(this._wikiBackoffTimeoutId);
window.removeEventListener('hashchange', this._onHashChanged.bind(this), false);
}
public render(): React.ReactNode {
const sectionNameToLinks = _.isUndefined(this.state.articlesBySection)
? {}
: this._getSectionNameToLinks(this.state.articlesBySection);
const mainContent = _.isUndefined(this.state.articlesBySection) ? (
<div className="flex justify-center">{this._renderLoading()}</div>
) : (
<div id="wiki" style={{ paddingRight: 2 }}>
{this._renderWikiArticles()}
</div>
);
const sidebar = _.isUndefined(this.state.articlesBySection) ? (
<div />
) : (
<NestedSidebarMenu sidebarHeader={this._renderSidebarHeader()} sectionNameToLinks={sectionNameToLinks} />
);
return (
<DevelopersPage
sidebar={sidebar}
mainContent={mainContent}
location={this.props.location}
screenWidth={this.props.screenWidth}
translate={this.props.translate}
dispatcher={this.props.dispatcher}
/>
);
}
private _renderSidebarHeader(): React.ReactNode {
const wikiTitle = this.props.translate.get(Key.Wiki, Deco.Cap);
return <SidebarHeader screenWidth={this.props.screenWidth} title={wikiTitle} />;
}
private _renderLoading(): React.ReactNode {
return (
<Container className="pt4">
<Container className="center pb2">
<CircularProgress size={40} thickness={5} />
</Container>
<Container className="center pt2" paddingBottom="11px">
Loading wiki...
</Container>
</Container>
);
}
private _renderWikiArticles(): React.ReactNode {
const sectionNames = _.keys(this.state.articlesBySection);
const sections = _.map(sectionNames, sectionName => this._renderSection(sectionName));
return sections;
}
private _renderSection(sectionName: string): React.ReactNode {
const articles = this.state.articlesBySection[sectionName];
const renderedArticles = _.map(articles, (article: Article) => {
const githubLink = `${constants.URL_GITHUB_WIKI}/edit/master/${sectionName}/${article.fileName}`;
return (
<div key={`markdown-section-${article.title}`}>
<MarkdownSection
sectionName={article.title}
markdownContent={article.content}
headerSize={HeaderSizes.H2}
githubLink={githubLink}
/>
</div>
);
});
return <div key={`section-${sectionName}`}>{renderedArticles}</div>;
}
private async _fetchArticlesBySectionAsync(): Promise<void> {
try {
const articlesBySection = await backendClient.getWikiArticlesBySectionAsync();
if (!this._isUnmounted) {
this.setState(
{
articlesBySection,
},
async () => {
await utils.onPageLoadPromise;
const hash = this.props.location.hash.slice(1);
sharedUtils.scrollToHash(hash, sharedConstants.SCROLL_CONTAINER_ID);
},
);
}
} catch (err) {
const errMsg = `${err}`;
if (_.includes(errMsg, `${constants.HTTP_NO_CONTENT_STATUS_CODE}`)) {
// We need to backoff and try fetching again later
this._wikiBackoffTimeoutId = window.setTimeout(() => {
// tslint:disable-next-line:no-floating-promises
this._fetchArticlesBySectionAsync();
}, WIKI_NOT_READY_BACKOUT_TIMEOUT_MS);
return;
}
}
}
private _getSectionNameToLinks(articlesBySection: ArticlesBySection): ObjectMap<ALink[]> {
const sectionNames = _.keys(articlesBySection);
const sectionNameToLinks: ObjectMap<ALink[]> = {};
for (const sectionName of sectionNames) {
const articles = articlesBySection[sectionName];
const articleLinks = _.map(articles, article => {
return {
to: sharedUtils.getIdFromName(article.title),
title: article.title,
};
});
sectionNameToLinks[sectionName] = articleLinks;
}
return sectionNameToLinks;
}
private _onHashChanged(_event: any): void {
const hash = window.location.hash.slice(1);
sharedUtils.scrollToHash(hash, sharedConstants.SCROLL_CONTAINER_ID);
}
}
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