lbry-desktop/ui/page/channel/view.jsx
2019-11-11 13:27:29 -05:00

277 lines
9.3 KiB
JavaScript

// @flow
import React, { useState } from 'react';
import { parseURI } from 'lbry-redux';
import Page from 'component/page';
import SubscribeButton from 'component/subscribeButton';
import BlockButton from 'component/blockButton';
import ShareButton from 'component/shareButton';
import { Tabs, TabList, Tab, TabPanels, TabPanel } from 'component/common/tabs';
import { withRouter } from 'react-router';
import Button from 'component/button';
import { formatLbryUriForWeb } from 'util/uri';
import ChannelContent from 'component/channelContent';
import ChannelAbout from 'component/channelAbout';
import ChannelDiscussion from 'component/channelDiscussion';
import ChannelThumbnail from 'component/channelThumbnail';
import ChannelEdit from 'component/channelEdit';
import ClaimUri from 'component/claimUri';
import * as ICONS from 'constants/icons';
import classnames from 'classnames';
import * as MODALS from 'constants/modal_types';
import { Form, FormField } from 'component/common/form';
import ClaimPreview from 'component/claimPreview';
import Icon from 'component/common/icon';
import HelpLink from 'component/common/help-link';
import debounce from 'util/debounce';
import { DEBOUNCE_WAIT_DURATION_MS } from 'constants/search';
const PAGE_VIEW_QUERY = `view`;
const ABOUT_PAGE = `about`;
const DISCUSSION_PAGE = `discussion`;
const LIGHTHOUSE_URL = 'https://lighthouse.lbry.com/search';
type Props = {
uri: string,
claim: ChannelClaim,
title: ?string,
cover: ?string,
thumbnail: ?string,
page: number,
location: { search: string },
history: { push: string => void },
match: { params: { attribute: ?string } },
channelIsMine: boolean,
isSubscribed: boolean,
channelIsBlocked: boolean,
blackListedOutpoints: Array<{
txid: string,
nout: number,
}>,
openModal: (id: string, { uri: string, claimIsMine?: boolean, isSupport?: boolean }) => void,
supportOption: boolean,
fetchSubCount: string => void,
subCount: number,
};
function ChannelPage(props: Props) {
const {
uri,
title,
cover,
history,
location,
page,
channelIsMine,
thumbnail,
claim,
isSubscribed,
channelIsBlocked,
blackListedOutpoints,
openModal,
supportOption,
fetchSubCount,
subCount,
} = props;
const { channelName } = parseURI(uri);
const { search } = location;
const urlParams = new URLSearchParams(search);
const currentView = urlParams.get(PAGE_VIEW_QUERY) || undefined;
const { permanent_url: permanentUrl } = claim;
const [editing, setEditing] = useState(false);
const [thumbPreview, setThumbPreview] = useState(thumbnail);
const [coverPreview, setCoverPreview] = useState(cover);
const [searchQuery, setSearchQuery] = useState('');
const [searchResults, setSearchResults] = useState(undefined);
// passing callback to useState ensures it's only set on initial render. Without this, the debouncing wont work.
const [performSearch] = useState(() => debounce(updateResults, DEBOUNCE_WAIT_DURATION_MS));
const claimId = claim.claim_id;
// If a user changes tabs, update the url so it stays on the same page if they refresh.
// We don't want to use links here because we can't animate the tab change and using links
// would alter the Tab label's role attribute, which should stay role="tab" to work with keyboards/screen readers.
const tabIndex = currentView === ABOUT_PAGE || editing ? 1 : currentView === DISCUSSION_PAGE ? 2 : 0;
function onTabChange(newTabIndex) {
let url = formatLbryUriForWeb(uri);
let search = '?';
if (newTabIndex === 0) {
setSearchResults(null);
search += `page=${page}`;
} else if (newTabIndex === 1) {
search += `${PAGE_VIEW_QUERY}=${ABOUT_PAGE}`;
} else {
search += `${PAGE_VIEW_QUERY}=${DISCUSSION_PAGE}`;
}
history.push(`${url}${search}`);
}
function handleSearch() {
performSearch(searchQuery);
}
function updateResults(query) {
// In order to display original search results, search results must be set to null. A query of '' should display original results.
if (query === '') return setSearchResults(null);
const url = generateFetchUrl(query);
getResults(url);
}
function generateFetchUrl(query) {
return `${LIGHTHOUSE_URL}?s=${encodeURIComponent(query)}&channel_id=${encodeURIComponent(claim.claim_id)}`;
}
function getResults(fetchUrl) {
fetch(fetchUrl)
.then(res => res.json())
.then(results => {
const urls = results.map(({ name, claimId }) => {
return `lbry://${name}#${claimId}`;
});
setSearchResults(urls);
})
.catch(() => {
setSearchResults(null);
});
}
React.useEffect(() => {
handleSearch();
}, [searchQuery]);
function handleInputChange(e) {
const { value } = e.target;
setSearchQuery(value);
}
let channelIsBlackListed = false;
if (claim && blackListedOutpoints) {
channelIsBlackListed = blackListedOutpoints.some(
outpoint => outpoint.txid === claim.txid && outpoint.nout === claim.nout
);
}
React.useEffect(() => {
setSearchResults(null);
setSearchQuery('');
fetchSubCount(claimId);
}, [uri, fetchSubCount, claimId]);
return (
<Page>
<div className="card">
<header className="channel-cover">
<div className="channel__quick-actions">
{!channelIsBlocked && !channelIsBlackListed && <ShareButton uri={uri} />}
{!channelIsMine && (
<Button
button="alt"
icon={ICONS.TIP}
label={__('Tip')}
title={__('Send a tip to this creator')}
onClick={() => openModal(MODALS.SEND_TIP, { uri, channelIsMine, isSupport: false })}
/>
)}
{(channelIsMine || (!channelIsMine && supportOption)) && (
<Button
button="alt"
icon={ICONS.SUPPORT}
label={__('Support')}
title={__('Support this creator')}
onClick={() => openModal(MODALS.SEND_TIP, { uri, channelIsMine, isSupport: true })}
/>
)}
{!channelIsBlocked && (!channelIsBlackListed || isSubscribed) && <SubscribeButton uri={permanentUrl} />}
{!isSubscribed && <BlockButton uri={permanentUrl} />}
</div>
{!editing && cover && (
<img
className={classnames('channel-cover__custom', { 'channel__image--blurred': channelIsBlocked })}
src={cover}
/>
)}
{editing && <img className="channel-cover__custom" src={coverPreview} />}
{/* component that offers select/upload */}
<div className="channel__primary-info ">
{!editing && (
<ChannelThumbnail className="channel__thumbnail--channel-page" uri={uri} obscure={channelIsBlocked} />
)}
{editing && (
<ChannelThumbnail
className="channel__thumbnail--channel-page"
uri={uri}
thumbnailPreview={thumbPreview}
/>
)}
<h1 className="channel__title">
{title || '@' + channelName}
{channelIsMine && !editing && (
<Button title={__('Edit')} onClick={() => setEditing(!editing)} icon={ICONS.EDIT} iconSize={49} />
)}
</h1>
<div className="channel__meta">
<ClaimUri uri={uri} />
<span>
{subCount} {subCount !== 1 ? __('Subscribers') : __('Subscriber')}
<HelpLink href="https://lbry.com/faq/views" />
</span>
</div>
</div>
</header>
<Tabs onChange={onTabChange} index={tabIndex}>
<TabList className="tabs__list--channel-page">
<Tab disabled={editing}>{__('Content')}</Tab>
<Tab>{editing ? __('Editing Your Channel') : __('About')}</Tab>
<Tab disabled={editing}>{__('Discussion')}</Tab>
{/* only render searchbar on content page (tab index 0 === content page) */}
{tabIndex === 0 ? (
<Form onSubmit={handleSearch} className="wunderbar--inline">
<Icon icon={ICONS.SEARCH} />
<FormField
className="wunderbar__input"
value={searchQuery}
onChange={handleInputChange}
type="text"
placeholder={__('Search')}
/>
</Form>
) : (
<div />
)}
</TabList>
<TabPanels>
<TabPanel>
{searchResults ? (
searchResults.map(url => <ClaimPreview key={url} uri={url} />)
) : (
<ChannelContent uri={uri} channelIsBlackListed={channelIsBlackListed} />
)}
</TabPanel>
<TabPanel>
{editing ? (
<ChannelEdit
uri={uri}
setEditing={setEditing}
updateThumb={v => setThumbPreview(v)}
updateCover={v => setCoverPreview(v)}
/>
) : (
<ChannelAbout uri={uri} />
)}
</TabPanel>
<TabPanel>
<ChannelDiscussion uri={uri} />
</TabPanel>
</TabPanels>
</Tabs>
</div>
</Page>
);
}
export default withRouter(ChannelPage);