297 lines
8.1 KiB
TypeScript
Vendored
297 lines
8.1 KiB
TypeScript
Vendored
import { Component, linkEvent } from 'inferno';
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import { Subscription } from 'rxjs';
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import { retryWhen, delay, take } from 'rxjs/operators';
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import {
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UserOperation,
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Community as CommunityI,
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GetCommunityResponse,
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CommunityResponse,
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CommunityUser,
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UserView,
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SortType,
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Post,
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GetPostsForm,
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ListingType,
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GetPostsResponse,
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CreatePostLikeResponse,
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} from '../interfaces';
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import { WebSocketService, UserService } from '../services';
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import { PostListings } from './post-listings';
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import { SortSelect } from './sort-select';
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import { Sidebar } from './sidebar';
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import {
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msgOp,
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routeSortTypeToEnum,
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fetchLimit,
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postRefetchSeconds,
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toast,
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} from '../utils';
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import { T } from 'inferno-i18next';
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import { i18n } from '../i18next';
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interface State {
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community: CommunityI;
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communityId: number;
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communityName: string;
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moderators: Array<CommunityUser>;
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admins: Array<UserView>;
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loading: boolean;
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posts: Array<Post>;
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sort: SortType;
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page: number;
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}
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export class Community extends Component<any, State> {
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private subscription: Subscription;
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private postFetcher: any;
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private emptyState: State = {
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community: {
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id: null,
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name: null,
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title: null,
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category_id: null,
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category_name: null,
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creator_id: null,
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creator_name: null,
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number_of_subscribers: null,
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number_of_posts: null,
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number_of_comments: null,
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published: null,
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removed: null,
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nsfw: false,
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deleted: null,
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},
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moderators: [],
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admins: [],
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communityId: Number(this.props.match.params.id),
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communityName: this.props.match.params.name,
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loading: true,
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posts: [],
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sort: this.getSortTypeFromProps(this.props),
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page: this.getPageFromProps(this.props),
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};
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getSortTypeFromProps(props: any): SortType {
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return props.match.params.sort
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? routeSortTypeToEnum(props.match.params.sort)
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: UserService.Instance.user
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? UserService.Instance.user.default_sort_type
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: SortType.Hot;
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}
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getPageFromProps(props: any): number {
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return props.match.params.page ? Number(props.match.params.page) : 1;
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}
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constructor(props: any, context: any) {
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super(props, context);
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this.state = this.emptyState;
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this.handleSortChange = this.handleSortChange.bind(this);
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this.subscription = WebSocketService.Instance.subject
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.pipe(retryWhen(errors => errors.pipe(delay(3000), take(10))))
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.subscribe(
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msg => this.parseMessage(msg),
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err => console.error(err),
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() => console.log('complete')
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);
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if (this.state.communityId) {
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WebSocketService.Instance.getCommunity(this.state.communityId);
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} else if (this.state.communityName) {
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WebSocketService.Instance.getCommunityByName(this.state.communityName);
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}
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}
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componentWillUnmount() {
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this.subscription.unsubscribe();
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clearInterval(this.postFetcher);
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}
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// Necessary for back button for some reason
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componentWillReceiveProps(nextProps: any) {
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if (
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nextProps.history.action == 'POP' ||
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nextProps.history.action == 'PUSH'
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) {
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this.state.sort = this.getSortTypeFromProps(nextProps);
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this.state.page = this.getPageFromProps(nextProps);
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this.setState(this.state);
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this.fetchPosts();
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}
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}
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render() {
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return (
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<div class="container">
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{this.state.loading ? (
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<h5>
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<svg class="icon icon-spinner spin">
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<use xlinkHref="#icon-spinner"></use>
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</svg>
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</h5>
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) : (
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<div class="row">
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<div class="col-12 col-md-8">
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<h5>
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{this.state.community.title}
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{this.state.community.removed && (
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<small className="ml-2 text-muted font-italic">
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<T i18nKey="removed">#</T>
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</small>
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)}
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{this.state.community.nsfw && (
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<small className="ml-2 text-muted font-italic">
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<T i18nKey="nsfw">#</T>
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</small>
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)}
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</h5>
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{this.selects()}
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<PostListings posts={this.state.posts} />
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{this.paginator()}
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</div>
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<div class="col-12 col-md-4">
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<Sidebar
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community={this.state.community}
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moderators={this.state.moderators}
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admins={this.state.admins}
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/>
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</div>
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</div>
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)}
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</div>
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);
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}
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selects() {
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return (
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<div class="mb-2">
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<SortSelect sort={this.state.sort} onChange={this.handleSortChange} />
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<a
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href={`/feeds/c/${this.state.communityName}.xml?sort=${
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SortType[this.state.sort]
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}`}
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target="_blank"
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>
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<svg class="icon mx-2 text-muted small">
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<use xlinkHref="#icon-rss">#</use>
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</svg>
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</a>
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</div>
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);
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}
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paginator() {
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return (
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<div class="my-2">
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{this.state.page > 1 && (
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<button
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class="btn btn-sm btn-secondary mr-1"
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onClick={linkEvent(this, this.prevPage)}
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>
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<T i18nKey="prev">#</T>
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</button>
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)}
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{this.state.posts.length == fetchLimit && (
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<button
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class="btn btn-sm btn-secondary"
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onClick={linkEvent(this, this.nextPage)}
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>
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<T i18nKey="next">#</T>
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</button>
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)}
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</div>
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);
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}
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nextPage(i: Community) {
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i.state.page++;
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i.setState(i.state);
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i.updateUrl();
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i.fetchPosts();
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window.scrollTo(0, 0);
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}
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prevPage(i: Community) {
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i.state.page--;
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i.setState(i.state);
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i.updateUrl();
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i.fetchPosts();
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window.scrollTo(0, 0);
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}
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handleSortChange(val: SortType) {
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this.state.sort = val;
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this.state.page = 1;
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this.state.loading = true;
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this.setState(this.state);
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this.updateUrl();
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this.fetchPosts();
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window.scrollTo(0, 0);
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}
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updateUrl() {
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let sortStr = SortType[this.state.sort].toLowerCase();
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this.props.history.push(
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`/c/${this.state.community.name}/sort/${sortStr}/page/${this.state.page}`
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);
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}
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keepFetchingPosts() {
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this.fetchPosts();
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this.postFetcher = setInterval(() => this.fetchPosts(), postRefetchSeconds);
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}
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fetchPosts() {
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let getPostsForm: GetPostsForm = {
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page: this.state.page,
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limit: fetchLimit,
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sort: SortType[this.state.sort],
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type_: ListingType[ListingType.Community],
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community_id: this.state.community.id,
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};
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WebSocketService.Instance.getPosts(getPostsForm);
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}
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parseMessage(msg: any) {
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console.log(msg);
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let op: UserOperation = msgOp(msg);
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if (msg.error) {
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toast(i18n.t(msg.error), 'danger');
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this.context.router.history.push('/');
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return;
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} else if (op == UserOperation.GetCommunity) {
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let res: GetCommunityResponse = msg;
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this.state.community = res.community;
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this.state.moderators = res.moderators;
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this.state.admins = res.admins;
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document.title = `/c/${this.state.community.name} - ${WebSocketService.Instance.site.name}`;
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this.setState(this.state);
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this.keepFetchingPosts();
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} else if (op == UserOperation.EditCommunity) {
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let res: CommunityResponse = msg;
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this.state.community = res.community;
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this.setState(this.state);
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} else if (op == UserOperation.FollowCommunity) {
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let res: CommunityResponse = msg;
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this.state.community.subscribed = res.community.subscribed;
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this.state.community.number_of_subscribers =
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res.community.number_of_subscribers;
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this.setState(this.state);
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} else if (op == UserOperation.GetPosts) {
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let res: GetPostsResponse = msg;
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this.state.posts = res.posts;
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this.state.loading = false;
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this.setState(this.state);
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} else if (op == UserOperation.CreatePostLike) {
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let res: CreatePostLikeResponse = msg;
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let found = this.state.posts.find(c => c.id == res.post.id);
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found.my_vote = res.post.my_vote;
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found.score = res.post.score;
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found.upvotes = res.post.upvotes;
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found.downvotes = res.post.downvotes;
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this.setState(this.state);
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}
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}
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}
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