Yuito-app-android/app/src/main/java/com/keylesspalace/tusky/components/timeline/viewmodel/NetworkTimelinePagingSource.kt

38 lines
1.4 KiB
Kotlin

/* Copyright 2021 Tusky Contributors
*
* This file is a part of Tusky.
*
* This program is free software; you can redistribute it and/or modify it under the terms of the
* GNU General Public License as published by the Free Software Foundation; either version 3 of the
* License, or (at your option) any later version.
*
* Tusky is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even
* the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
* Public License for more details.
*
* You should have received a copy of the GNU General Public License along with Tusky; if not,
* see <http://www.gnu.org/licenses>. */
package com.keylesspalace.tusky.components.timeline.viewmodel
import androidx.paging.PagingSource
import androidx.paging.PagingState
import com.keylesspalace.tusky.viewdata.StatusViewData
class NetworkTimelinePagingSource(
private val viewModel: NetworkTimelineViewModel
) : PagingSource<String, StatusViewData>() {
override fun getRefreshKey(state: PagingState<String, StatusViewData>): String? = null
override suspend fun load(params: LoadParams<String>): LoadResult<String, StatusViewData> {
return if (params is LoadParams.Refresh) {
val list = viewModel.statusData.toList()
LoadResult.Page(list, null, viewModel.nextKey)
} else {
LoadResult.Page(emptyList(), null, null)
}
}
}