150 lines
4.0 KiB
JavaScript
150 lines
4.0 KiB
JavaScript
// @flow
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import * as React from "react";
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import { observable, action } from "mobx";
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import { observer, inject } from "mobx-react";
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import type { RouterHistory } from "react-router-dom";
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import styled from "styled-components";
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import { Waypoint } from "react-waypoint";
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import ArrowKeyNavigation from "boundless-arrow-key-navigation";
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import { DEFAULT_PAGINATION_LIMIT } from "stores/BaseStore";
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import DocumentsStore from "stores/DocumentsStore";
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import RevisionsStore from "stores/RevisionsStore";
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import Flex from "components/Flex";
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import { ListPlaceholder } from "components/LoadingPlaceholder";
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import Revision from "./components/Revision";
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import { documentHistoryUrl } from "utils/routeHelpers";
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type Props = {
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match: Object,
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documents: DocumentsStore,
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revisions: RevisionsStore,
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history: RouterHistory,
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};
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@observer
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class DocumentHistory extends React.Component<Props> {
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@observable isLoaded: boolean = false;
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@observable isFetching: boolean = false;
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@observable offset: number = 0;
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@observable allowLoadMore: boolean = true;
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async componentDidMount() {
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await this.loadMoreResults();
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this.selectFirstRevision();
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}
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fetchResults = async () => {
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this.isFetching = true;
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const limit = DEFAULT_PAGINATION_LIMIT;
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const results = await this.props.revisions.fetchPage({
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limit,
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offset: this.offset,
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documentId: this.props.match.params.documentSlug,
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});
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if (
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results &&
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(results.length === 0 || results.length < DEFAULT_PAGINATION_LIMIT)
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) {
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this.allowLoadMore = false;
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} else {
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this.offset += DEFAULT_PAGINATION_LIMIT;
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}
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this.isLoaded = true;
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this.isFetching = false;
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};
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selectFirstRevision = () => {
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if (this.revisions.length) {
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const document = this.props.documents.getByUrl(
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this.props.match.params.documentSlug
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);
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if (!document) return;
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this.props.history.replace(
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documentHistoryUrl(document, this.revisions[0].id)
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);
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}
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};
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@action
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loadMoreResults = async () => {
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// Don't paginate if there aren't more results or we’re in the middle of fetching
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if (!this.allowLoadMore || this.isFetching) return;
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await this.fetchResults();
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};
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get revisions() {
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const document = this.props.documents.getByUrl(
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this.props.match.params.documentSlug
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);
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if (!document) return [];
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return this.props.revisions.getDocumentRevisions(document.id);
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}
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render() {
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const document = this.props.documents.getByUrl(
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this.props.match.params.documentSlug
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);
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const showLoading = (!this.isLoaded && this.isFetching) || !document;
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return (
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<Sidebar>
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<Wrapper column>
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{showLoading ? (
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<Loading>
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<ListPlaceholder count={5} />
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</Loading>
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) : (
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<ArrowKeyNavigation
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mode={ArrowKeyNavigation.mode.VERTICAL}
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defaultActiveChildIndex={0}
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>
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{this.revisions.map((revision, index) => (
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<Revision
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key={revision.id}
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revision={revision}
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document={document}
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showMenu={index !== 0}
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selected={this.props.match.params.revisionId === revision.id}
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/>
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))}
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</ArrowKeyNavigation>
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)}
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{this.allowLoadMore && (
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<Waypoint key={this.offset} onEnter={this.loadMoreResults} />
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)}
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</Wrapper>
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</Sidebar>
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);
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}
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}
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const Loading = styled.div`
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margin: 0 16px;
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`;
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const Wrapper = styled(Flex)`
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position: fixed;
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top: 0;
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right: 0;
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z-index: 1;
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min-width: ${props => props.theme.sidebarWidth};
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height: 100%;
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overflow-y: auto;
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overscroll-behavior: none;
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`;
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const Sidebar = styled(Flex)`
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background: ${props => props.theme.background};
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min-width: ${props => props.theme.sidebarWidth};
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border-left: 1px solid ${props => props.theme.divider};
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z-index: 1;
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`;
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export default inject("documents", "revisions")(DocumentHistory);
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