d92731b1eb
* implement AppBskyEmbedVideo lexicon in player * add alt to native player * add prerelease package * update prerelease * add video embed view manually from record * fix type error on example video * black bg + use aspect ratio on web * add video to feeds * fix video overflowing aspect ratio * remove prerelease package --------- Co-authored-by: Samuel Newman <10959775+mozzius@users.noreply.github.com>
713 lines
22 KiB
TypeScript
713 lines
22 KiB
TypeScript
import React, {useRef} from 'react'
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import {StyleSheet, useWindowDimensions, View} from 'react-native'
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import {runOnJS} from 'react-native-reanimated'
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import Animated from 'react-native-reanimated'
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import {useSafeAreaInsets} from 'react-native-safe-area-context'
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import {AppBskyFeedDefs, AppBskyFeedThreadgate} from '@atproto/api'
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import {msg, Trans} from '@lingui/macro'
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import {useLingui} from '@lingui/react'
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import {moderatePost_wrapped as moderatePost} from '#/lib/moderatePost_wrapped'
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import {clamp} from '#/lib/numbers'
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import {ScrollProvider} from '#/lib/ScrollContext'
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import {isAndroid, isNative, isWeb} from '#/platform/detection'
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import {useModerationOpts} from '#/state/preferences/moderation-opts'
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import {
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fillThreadModerationCache,
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sortThread,
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ThreadBlocked,
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ThreadModerationCache,
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ThreadNode,
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ThreadNotFound,
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ThreadPost,
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usePostThreadQuery,
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} from '#/state/queries/post-thread'
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import {usePreferencesQuery} from '#/state/queries/preferences'
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import {useSession} from '#/state/session'
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import {useComposerControls} from '#/state/shell'
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import {useMergedThreadgateHiddenReplies} from '#/state/threadgate-hidden-replies'
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import {useInitialNumToRender} from 'lib/hooks/useInitialNumToRender'
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import {useMinimalShellFabTransform} from 'lib/hooks/useMinimalShellTransform'
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import {useSetTitle} from 'lib/hooks/useSetTitle'
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import {useWebMediaQueries} from 'lib/hooks/useWebMediaQueries'
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import {sanitizeDisplayName} from 'lib/strings/display-names'
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import {cleanError} from 'lib/strings/errors'
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import {CenteredView} from 'view/com/util/Views'
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import {atoms as a, useTheme} from '#/alf'
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import {ListFooter, ListMaybePlaceholder} from '#/components/Lists'
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import {Text} from '#/components/Typography'
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import {List, ListMethods} from '../util/List'
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import {ViewHeader} from '../util/ViewHeader'
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import {PostThreadComposePrompt} from './PostThreadComposePrompt'
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import {PostThreadItem} from './PostThreadItem'
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import {PostThreadLoadMore} from './PostThreadLoadMore'
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import {PostThreadShowHiddenReplies} from './PostThreadShowHiddenReplies'
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// FlatList maintainVisibleContentPosition breaks if too many items
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// are prepended. This seems to be an optimal number based on *shrug*.
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const PARENTS_CHUNK_SIZE = 15
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const MAINTAIN_VISIBLE_CONTENT_POSITION = {
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// We don't insert any elements before the root row while loading.
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// So the row we want to use as the scroll anchor is the first row.
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minIndexForVisible: 0,
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}
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const REPLY_PROMPT = {_reactKey: '__reply__'}
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const LOAD_MORE = {_reactKey: '__load_more__'}
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const SHOW_HIDDEN_REPLIES = {_reactKey: '__show_hidden_replies__'}
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const SHOW_MUTED_REPLIES = {_reactKey: '__show_muted_replies__'}
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enum HiddenRepliesState {
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Hide,
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Show,
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ShowAndOverridePostHider,
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}
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type YieldedItem =
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| ThreadPost
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| ThreadBlocked
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| ThreadNotFound
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| typeof SHOW_HIDDEN_REPLIES
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| typeof SHOW_MUTED_REPLIES
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type RowItem =
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| YieldedItem
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// TODO: TS doesn't actually enforce it's one of these, it only enforces matching shape.
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| typeof REPLY_PROMPT
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| typeof LOAD_MORE
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type ThreadSkeletonParts = {
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parents: YieldedItem[]
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highlightedPost: ThreadNode
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replies: YieldedItem[]
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}
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const keyExtractor = (item: RowItem) => {
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return item._reactKey
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}
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export function PostThread({uri}: {uri: string | undefined}) {
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const {hasSession, currentAccount} = useSession()
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const {_} = useLingui()
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const t = useTheme()
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const {isMobile, isTabletOrMobile} = useWebMediaQueries()
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const initialNumToRender = useInitialNumToRender()
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const {height: windowHeight} = useWindowDimensions()
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const [hiddenRepliesState, setHiddenRepliesState] = React.useState(
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HiddenRepliesState.Hide,
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)
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const {data: preferences} = usePreferencesQuery()
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const {
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isFetching,
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isError: isThreadError,
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error: threadError,
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refetch,
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data: {thread, threadgate} = {},
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} = usePostThreadQuery(uri)
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const treeView = React.useMemo(
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() =>
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!!preferences?.threadViewPrefs?.lab_treeViewEnabled &&
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hasBranchingReplies(thread),
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[preferences?.threadViewPrefs, thread],
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)
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const rootPost = thread?.type === 'post' ? thread.post : undefined
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const rootPostRecord = thread?.type === 'post' ? thread.record : undefined
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const threadgateRecord = threadgate?.record as
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| AppBskyFeedThreadgate.Record
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| undefined
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const threadgateHiddenReplies = useMergedThreadgateHiddenReplies({
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threadgateRecord,
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})
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const moderationOpts = useModerationOpts()
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const isNoPwi = React.useMemo(() => {
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const mod =
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rootPost && moderationOpts
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? moderatePost(rootPost, moderationOpts)
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: undefined
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return !!mod
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?.ui('contentList')
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.blurs.find(
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cause =>
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cause.type === 'label' &&
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cause.labelDef.identifier === '!no-unauthenticated',
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)
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}, [rootPost, moderationOpts])
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// Values used for proper rendering of parents
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const ref = useRef<ListMethods>(null)
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const highlightedPostRef = useRef<View | null>(null)
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const [maxParents, setMaxParents] = React.useState(
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isWeb ? Infinity : PARENTS_CHUNK_SIZE,
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)
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const [maxReplies, setMaxReplies] = React.useState(50)
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useSetTitle(
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rootPost && !isNoPwi
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? `${sanitizeDisplayName(
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rootPost.author.displayName || `@${rootPost.author.handle}`,
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)}: "${rootPostRecord!.text}"`
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: '',
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)
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// On native, this is going to start out `true`. We'll toggle it to `false` after the initial render if flushed.
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// This ensures that the first render contains no parents--even if they are already available in the cache.
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// We need to delay showing them so that we can use maintainVisibleContentPosition to keep the main post on screen.
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// On the web this is not necessary because we can synchronously adjust the scroll in onContentSizeChange instead.
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const [deferParents, setDeferParents] = React.useState(isNative)
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const currentDid = currentAccount?.did
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const threadModerationCache = React.useMemo(() => {
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const cache: ThreadModerationCache = new WeakMap()
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if (thread && moderationOpts) {
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fillThreadModerationCache(cache, thread, moderationOpts)
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}
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return cache
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}, [thread, moderationOpts])
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const [justPostedUris, setJustPostedUris] = React.useState(
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() => new Set<string>(),
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)
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const skeleton = React.useMemo(() => {
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const threadViewPrefs = preferences?.threadViewPrefs
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if (!threadViewPrefs || !thread) return null
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return createThreadSkeleton(
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sortThread(
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thread,
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threadViewPrefs,
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threadModerationCache,
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currentDid,
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justPostedUris,
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threadgateHiddenReplies,
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),
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currentDid,
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treeView,
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threadModerationCache,
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hiddenRepliesState !== HiddenRepliesState.Hide,
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threadgateHiddenReplies,
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)
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}, [
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thread,
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preferences?.threadViewPrefs,
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currentDid,
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treeView,
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threadModerationCache,
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hiddenRepliesState,
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justPostedUris,
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threadgateHiddenReplies,
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])
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const error = React.useMemo(() => {
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if (AppBskyFeedDefs.isNotFoundPost(thread)) {
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return {
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title: _(msg`Post not found`),
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message: _(msg`The post may have been deleted.`),
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}
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} else if (skeleton?.highlightedPost.type === 'blocked') {
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return {
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title: _(msg`Post hidden`),
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message: _(
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msg`You have blocked the author or you have been blocked by the author.`,
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),
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}
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} else if (threadError?.message.startsWith('Post not found')) {
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return {
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title: _(msg`Post not found`),
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message: _(msg`The post may have been deleted.`),
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}
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} else if (isThreadError) {
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return {
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message: threadError ? cleanError(threadError) : undefined,
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}
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}
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return null
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}, [thread, skeleton?.highlightedPost, isThreadError, _, threadError])
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// construct content
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const posts = React.useMemo(() => {
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if (!skeleton) return []
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const {parents, highlightedPost, replies} = skeleton
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let arr: RowItem[] = []
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if (highlightedPost.type === 'post') {
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// We want to wait for parents to load before rendering.
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// If you add something here, you'll need to update both
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// maintainVisibleContentPosition and onContentSizeChange
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// to "hold onto" the correct row instead of the first one.
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if (!highlightedPost.ctx.isParentLoading && !deferParents) {
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// When progressively revealing parents, rendering a placeholder
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// here will cause scrolling jumps. Don't add it unless you test it.
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// QT'ing this thread is a great way to test all the scrolling hacks:
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// https://bsky.app/profile/www.mozzius.dev/post/3kjqhblh6qk2o
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// Everything is loaded
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let startIndex = Math.max(0, parents.length - maxParents)
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for (let i = startIndex; i < parents.length; i++) {
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arr.push(parents[i])
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}
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}
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arr.push(highlightedPost)
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if (!highlightedPost.post.viewer?.replyDisabled) {
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arr.push(REPLY_PROMPT)
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}
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for (let i = 0; i < replies.length; i++) {
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arr.push(replies[i])
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if (i === maxReplies) {
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break
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}
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}
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}
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return arr
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}, [skeleton, deferParents, maxParents, maxReplies])
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// This is only used on the web to keep the post in view when its parents load.
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// On native, we rely on `maintainVisibleContentPosition` instead.
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const didAdjustScrollWeb = useRef<boolean>(false)
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const onContentSizeChangeWeb = React.useCallback(() => {
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// only run once
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if (didAdjustScrollWeb.current) {
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return
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}
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// wait for loading to finish
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if (thread?.type === 'post' && !!thread.parent) {
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function onMeasure(pageY: number) {
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ref.current?.scrollToOffset({
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animated: false,
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offset: pageY,
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})
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}
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// Measure synchronously to avoid a layout jump.
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const domNode = highlightedPostRef.current
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if (domNode) {
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const pageY = (domNode as any as Element).getBoundingClientRect().top
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onMeasure(pageY)
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}
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didAdjustScrollWeb.current = true
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}
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}, [thread])
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// On native, we reveal parents in chunks. Although they're all already
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// loaded and FlatList already has its own virtualization, unfortunately FlatList
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// has a bug that causes the content to jump around if too many items are getting
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// prepended at once. It also jumps around if items get prepended during scroll.
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// To work around this, we prepend rows after scroll bumps against the top and rests.
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const needsBumpMaxParents = React.useRef(false)
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const onStartReached = React.useCallback(() => {
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if (skeleton?.parents && maxParents < skeleton.parents.length) {
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needsBumpMaxParents.current = true
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}
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}, [maxParents, skeleton?.parents])
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const bumpMaxParentsIfNeeded = React.useCallback(() => {
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if (!isNative) {
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return
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}
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if (needsBumpMaxParents.current) {
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needsBumpMaxParents.current = false
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setMaxParents(n => n + PARENTS_CHUNK_SIZE)
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}
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}, [])
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const onScrollToTop = bumpMaxParentsIfNeeded
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const onMomentumEnd = React.useCallback(() => {
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'worklet'
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runOnJS(bumpMaxParentsIfNeeded)()
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}, [bumpMaxParentsIfNeeded])
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const onEndReached = React.useCallback(() => {
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if (isFetching || posts.length < maxReplies) return
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setMaxReplies(prev => prev + 50)
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}, [isFetching, maxReplies, posts.length])
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const onPostReply = React.useCallback(
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(postUri: string | undefined) => {
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refetch()
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if (postUri) {
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setJustPostedUris(set => {
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const nextSet = new Set(set)
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nextSet.add(postUri)
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return nextSet
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})
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}
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},
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[refetch],
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)
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const {openComposer} = useComposerControls()
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const onPressReply = React.useCallback(() => {
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if (thread?.type !== 'post') {
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return
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}
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openComposer({
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replyTo: {
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uri: thread.post.uri,
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cid: thread.post.cid,
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text: thread.record.text,
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author: thread.post.author,
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embed: thread.post.embed,
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},
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onPost: onPostReply,
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})
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}, [openComposer, thread, onPostReply])
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const canReply = !error && rootPost && !rootPost.viewer?.replyDisabled
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const hasParents =
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skeleton?.highlightedPost?.type === 'post' &&
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(skeleton.highlightedPost.ctx.isParentLoading ||
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Boolean(skeleton?.parents && skeleton.parents.length > 0))
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const showHeader =
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isNative || (isTabletOrMobile && (!hasParents || !isFetching))
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const renderItem = ({item, index}: {item: RowItem; index: number}) => {
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if (item === REPLY_PROMPT && hasSession) {
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return (
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<View>
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{!isMobile && (
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<PostThreadComposePrompt onPressCompose={onPressReply} />
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)}
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</View>
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)
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} else if (item === SHOW_HIDDEN_REPLIES || item === SHOW_MUTED_REPLIES) {
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return (
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<PostThreadShowHiddenReplies
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type={item === SHOW_HIDDEN_REPLIES ? 'hidden' : 'muted'}
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onPress={() =>
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setHiddenRepliesState(
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item === SHOW_HIDDEN_REPLIES
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? HiddenRepliesState.Show
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: HiddenRepliesState.ShowAndOverridePostHider,
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)
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}
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hideTopBorder={index === 0}
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/>
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)
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} else if (isThreadNotFound(item)) {
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return (
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<View
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style={[
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a.p_lg,
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index !== 0 && a.border_t,
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t.atoms.border_contrast_low,
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t.atoms.bg_contrast_25,
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]}>
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<Text style={[a.font_bold, a.text_md, t.atoms.text_contrast_medium]}>
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<Trans>Deleted post.</Trans>
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</Text>
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</View>
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)
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} else if (isThreadBlocked(item)) {
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return (
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<View
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style={[
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a.p_lg,
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index !== 0 && a.border_t,
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t.atoms.border_contrast_low,
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t.atoms.bg_contrast_25,
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]}>
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<Text style={[a.font_bold, a.text_md, t.atoms.text_contrast_medium]}>
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<Trans>Blocked post.</Trans>
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</Text>
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</View>
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)
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} else if (isThreadPost(item)) {
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if (!treeView && item.ctx.hasMoreSelfThread) {
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return <PostThreadLoadMore post={item.post} />
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}
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const prev = isThreadPost(posts[index - 1])
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? (posts[index - 1] as ThreadPost)
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: undefined
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const next = isThreadPost(posts[index + 1])
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? (posts[index + 1] as ThreadPost)
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: undefined
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const showChildReplyLine = (next?.ctx.depth || 0) > item.ctx.depth
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const showParentReplyLine =
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(item.ctx.depth < 0 && !!item.parent) || item.ctx.depth > 1
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const hasUnrevealedParents =
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index === 0 && skeleton?.parents && maxParents < skeleton.parents.length
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return (
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<View
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ref={item.ctx.isHighlightedPost ? highlightedPostRef : undefined}
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onLayout={deferParents ? () => setDeferParents(false) : undefined}>
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<PostThreadItem
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post={item.post}
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record={item.record}
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threadgateRecord={threadgateRecord ?? undefined}
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moderation={threadModerationCache.get(item)}
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treeView={treeView}
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depth={item.ctx.depth}
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prevPost={prev}
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nextPost={next}
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isHighlightedPost={item.ctx.isHighlightedPost}
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hasMore={item.ctx.hasMore}
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showChildReplyLine={showChildReplyLine}
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showParentReplyLine={showParentReplyLine}
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hasPrecedingItem={showParentReplyLine || !!hasUnrevealedParents}
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overrideBlur={
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hiddenRepliesState ===
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HiddenRepliesState.ShowAndOverridePostHider &&
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item.ctx.depth > 0
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}
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onPostReply={onPostReply}
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hideTopBorder={index === 0 && !item.ctx.isParentLoading}
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/>
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</View>
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)
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}
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return null
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}
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|
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if (!thread || !preferences || error) {
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return (
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<ListMaybePlaceholder
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isLoading={!error}
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isError={Boolean(error)}
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noEmpty
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onRetry={refetch}
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|
errorTitle={error?.title}
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errorMessage={error?.message}
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/>
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)
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}
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return (
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<CenteredView style={[a.flex_1]} sideBorders={true}>
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{showHeader && (
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<ViewHeader
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title={_(msg({message: `Post`, context: 'description'}))}
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showBorder
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/>
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)}
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|
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<ScrollProvider onMomentumEnd={onMomentumEnd}>
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<List
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ref={ref}
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data={posts}
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renderItem={renderItem}
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keyExtractor={keyExtractor}
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onContentSizeChange={isNative ? undefined : onContentSizeChangeWeb}
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onStartReached={onStartReached}
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onEndReached={onEndReached}
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onEndReachedThreshold={2}
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onScrollToTop={onScrollToTop}
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maintainVisibleContentPosition={
|
|
isNative && hasParents
|
|
? MAINTAIN_VISIBLE_CONTENT_POSITION
|
|
: undefined
|
|
}
|
|
// @ts-ignore our .web version only -prf
|
|
desktopFixedHeight
|
|
removeClippedSubviews={isAndroid ? false : undefined}
|
|
ListFooterComponent={
|
|
<ListFooter
|
|
// Using `isFetching` over `isFetchingNextPage` is done on purpose here so we get the loader on
|
|
// initial render
|
|
isFetchingNextPage={isFetching}
|
|
error={cleanError(threadError)}
|
|
onRetry={refetch}
|
|
// 300 is based on the minimum height of a post. This is enough extra height for the `maintainVisPos` to
|
|
// work without causing weird jumps on web or glitches on native
|
|
height={windowHeight - 200}
|
|
/>
|
|
}
|
|
initialNumToRender={initialNumToRender}
|
|
windowSize={11}
|
|
sideBorders={false}
|
|
/>
|
|
</ScrollProvider>
|
|
{isMobile && canReply && hasSession && (
|
|
<MobileComposePrompt onPressReply={onPressReply} />
|
|
)}
|
|
</CenteredView>
|
|
)
|
|
}
|
|
|
|
function MobileComposePrompt({onPressReply}: {onPressReply: () => unknown}) {
|
|
const safeAreaInsets = useSafeAreaInsets()
|
|
const fabMinimalShellTransform = useMinimalShellFabTransform()
|
|
return (
|
|
<Animated.View
|
|
style={[
|
|
styles.prompt,
|
|
fabMinimalShellTransform,
|
|
{
|
|
bottom: clamp(safeAreaInsets.bottom, 15, 30),
|
|
},
|
|
]}>
|
|
<PostThreadComposePrompt onPressCompose={onPressReply} />
|
|
</Animated.View>
|
|
)
|
|
}
|
|
|
|
function isThreadPost(v: unknown): v is ThreadPost {
|
|
return !!v && typeof v === 'object' && 'type' in v && v.type === 'post'
|
|
}
|
|
|
|
function isThreadNotFound(v: unknown): v is ThreadNotFound {
|
|
return !!v && typeof v === 'object' && 'type' in v && v.type === 'not-found'
|
|
}
|
|
|
|
function isThreadBlocked(v: unknown): v is ThreadBlocked {
|
|
return !!v && typeof v === 'object' && 'type' in v && v.type === 'blocked'
|
|
}
|
|
|
|
function createThreadSkeleton(
|
|
node: ThreadNode,
|
|
currentDid: string | undefined,
|
|
treeView: boolean,
|
|
modCache: ThreadModerationCache,
|
|
showHiddenReplies: boolean,
|
|
threadgateRecordHiddenReplies: Set<string>,
|
|
): ThreadSkeletonParts | null {
|
|
if (!node) return null
|
|
|
|
return {
|
|
parents: Array.from(flattenThreadParents(node, !!currentDid)),
|
|
highlightedPost: node,
|
|
replies: Array.from(
|
|
flattenThreadReplies(
|
|
node,
|
|
currentDid,
|
|
treeView,
|
|
modCache,
|
|
showHiddenReplies,
|
|
threadgateRecordHiddenReplies,
|
|
),
|
|
),
|
|
}
|
|
}
|
|
|
|
function* flattenThreadParents(
|
|
node: ThreadNode,
|
|
hasSession: boolean,
|
|
): Generator<YieldedItem, void> {
|
|
if (node.type === 'post') {
|
|
if (node.parent) {
|
|
yield* flattenThreadParents(node.parent, hasSession)
|
|
}
|
|
if (!node.ctx.isHighlightedPost) {
|
|
yield node
|
|
}
|
|
} else if (node.type === 'not-found') {
|
|
yield node
|
|
} else if (node.type === 'blocked') {
|
|
yield node
|
|
}
|
|
}
|
|
|
|
// The enum is ordered to make them easy to merge
|
|
enum HiddenReplyType {
|
|
None = 0,
|
|
Muted = 1,
|
|
Hidden = 2,
|
|
}
|
|
|
|
function* flattenThreadReplies(
|
|
node: ThreadNode,
|
|
currentDid: string | undefined,
|
|
treeView: boolean,
|
|
modCache: ThreadModerationCache,
|
|
showHiddenReplies: boolean,
|
|
threadgateRecordHiddenReplies: Set<string>,
|
|
): Generator<YieldedItem, HiddenReplyType> {
|
|
if (node.type === 'post') {
|
|
// dont show pwi-opted-out posts to logged out users
|
|
if (!currentDid && hasPwiOptOut(node)) {
|
|
return HiddenReplyType.None
|
|
}
|
|
|
|
// handle blurred items
|
|
if (node.ctx.depth > 0) {
|
|
const modui = modCache.get(node)?.ui('contentList')
|
|
if (modui?.blur || modui?.filter) {
|
|
if (!showHiddenReplies || node.ctx.depth > 1) {
|
|
if ((modui.blurs[0] || modui.filters[0]).type === 'muted') {
|
|
return HiddenReplyType.Muted
|
|
}
|
|
return HiddenReplyType.Hidden
|
|
}
|
|
}
|
|
|
|
if (!showHiddenReplies) {
|
|
const hiddenByThreadgate = threadgateRecordHiddenReplies.has(
|
|
node.post.uri,
|
|
)
|
|
const authorIsViewer = node.post.author.did === currentDid
|
|
if (hiddenByThreadgate && !authorIsViewer) {
|
|
return HiddenReplyType.Hidden
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!node.ctx.isHighlightedPost) {
|
|
yield node
|
|
}
|
|
|
|
if (node.replies?.length) {
|
|
let hiddenReplies = HiddenReplyType.None
|
|
for (const reply of node.replies) {
|
|
let hiddenReply = yield* flattenThreadReplies(
|
|
reply,
|
|
currentDid,
|
|
treeView,
|
|
modCache,
|
|
showHiddenReplies,
|
|
threadgateRecordHiddenReplies,
|
|
)
|
|
if (hiddenReply > hiddenReplies) {
|
|
hiddenReplies = hiddenReply
|
|
}
|
|
if (!treeView && !node.ctx.isHighlightedPost) {
|
|
break
|
|
}
|
|
}
|
|
|
|
// show control to enable hidden replies
|
|
if (node.ctx.depth === 0) {
|
|
if (hiddenReplies === HiddenReplyType.Muted) {
|
|
yield SHOW_MUTED_REPLIES
|
|
} else if (hiddenReplies === HiddenReplyType.Hidden) {
|
|
yield SHOW_HIDDEN_REPLIES
|
|
}
|
|
}
|
|
}
|
|
} else if (node.type === 'not-found') {
|
|
yield node
|
|
} else if (node.type === 'blocked') {
|
|
yield node
|
|
}
|
|
return HiddenReplyType.None
|
|
}
|
|
|
|
function hasPwiOptOut(node: ThreadPost) {
|
|
return !!node.post.author.labels?.find(l => l.val === '!no-unauthenticated')
|
|
}
|
|
|
|
function hasBranchingReplies(node?: ThreadNode) {
|
|
if (!node) {
|
|
return false
|
|
}
|
|
if (node.type !== 'post') {
|
|
return false
|
|
}
|
|
if (!node.replies) {
|
|
return false
|
|
}
|
|
if (node.replies.length === 1) {
|
|
return hasBranchingReplies(node.replies[0])
|
|
}
|
|
return true
|
|
}
|
|
|
|
const styles = StyleSheet.create({
|
|
prompt: {
|
|
// @ts-ignore web-only
|
|
position: isWeb ? 'fixed' : 'absolute',
|
|
left: 0,
|
|
right: 0,
|
|
},
|
|
})
|