Fix PagingSource for comments
The previous implementation was skipping the first page of comments
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parent
412e1d602a
commit
23b3835af0
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@ -0,0 +1,27 @@
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package org.schabi.newpipe.paging
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import androidx.paging.PagingSource
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import androidx.paging.PagingState
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import kotlinx.coroutines.Dispatchers
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import kotlinx.coroutines.withContext
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import org.schabi.newpipe.extractor.NewPipe
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import org.schabi.newpipe.extractor.Page
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import org.schabi.newpipe.extractor.comments.CommentsInfo
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import org.schabi.newpipe.extractor.comments.CommentsInfoItem
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class CommentRepliesSource(
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private val commentInfo: CommentsInfoItem,
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) : PagingSource<Page, CommentsInfoItem>() {
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private val service = NewPipe.getService(commentInfo.serviceId)
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override suspend fun load(params: LoadParams<Page>): LoadResult<Page, CommentsInfoItem> {
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// params.key is null the first time load() is called, and we need to return the first page
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val repliesPage = params.key ?: commentInfo.replies
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val info = withContext(Dispatchers.IO) {
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CommentsInfo.getMoreItems(service, commentInfo.url, repliesPage)
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}
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return LoadResult.Page(info.items, null, info.nextPage)
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}
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override fun getRefreshKey(state: PagingState<Page, CommentsInfoItem>) = null
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}
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@ -9,35 +9,20 @@ import org.schabi.newpipe.extractor.Page
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import org.schabi.newpipe.extractor.comments.CommentsInfo
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import org.schabi.newpipe.extractor.comments.CommentsInfoItem
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import org.schabi.newpipe.ui.components.video.comment.CommentInfo
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import org.schabi.newpipe.util.NO_SERVICE_ID
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class CommentsSource(
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serviceId: Int,
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private val url: String,
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private val repliesPage: Page?,
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private val commentInfo: CommentInfo? = null,
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) : PagingSource<Page, CommentsInfoItem>() {
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constructor(commentInfo: CommentInfo) : this(
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commentInfo.serviceId, commentInfo.url, commentInfo.nextPage, commentInfo
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)
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init {
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require(serviceId != NO_SERVICE_ID) { "serviceId is NO_SERVICE_ID" }
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}
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private val service = NewPipe.getService(serviceId)
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class CommentsSource(private val commentInfo: CommentInfo) : PagingSource<Page, CommentsInfoItem>() {
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private val service = NewPipe.getService(commentInfo.serviceId)
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override suspend fun load(params: LoadParams<Page>): LoadResult<Page, CommentsInfoItem> {
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// repliesPage is non-null only when used to load the comment replies
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val nextKey = params.key ?: repliesPage
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return withContext(Dispatchers.IO) {
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nextKey?.let {
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val info = CommentsInfo.getMoreItems(service, url, it)
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LoadResult.Page(info.items, null, info.nextPage)
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} ?: run {
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val info = commentInfo ?: CommentInfo(CommentsInfo.getInfo(service, url))
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LoadResult.Page(info.comments, null, info.nextPage)
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// params.key is null the first time the load() function is called, so we need to return the
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// first batch of already-loaded comments
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if (params.key == null) {
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return LoadResult.Page(commentInfo.comments, null, commentInfo.nextPage)
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} else {
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val info = withContext(Dispatchers.IO) {
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CommentsInfo.getMoreItems(service, commentInfo.url, params.key)
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}
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return LoadResult.Page(info.items, null, info.nextPage)
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}
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}
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@ -32,7 +32,7 @@ import my.nanihadesuka.compose.ScrollbarSettings
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import org.schabi.newpipe.R
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import org.schabi.newpipe.extractor.comments.CommentsInfoItem
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import org.schabi.newpipe.extractor.stream.Description
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import org.schabi.newpipe.paging.CommentsSource
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import org.schabi.newpipe.paging.CommentRepliesSource
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import org.schabi.newpipe.ui.components.common.LoadingIndicator
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import org.schabi.newpipe.ui.components.common.NoItemsMessage
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import org.schabi.newpipe.ui.theme.AppTheme
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@ -46,8 +46,9 @@ fun CommentRepliesDialog(
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val coroutineScope = rememberCoroutineScope()
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val commentsFlow = remember {
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Pager(PagingConfig(pageSize = 20, enablePlaceholders = false)) {
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CommentsSource(parentComment.serviceId, parentComment.url, parentComment.replies)
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}.flow
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CommentRepliesSource(parentComment)
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}
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.flow
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.cachedIn(coroutineScope)
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}
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