Pixelcat-App-Android/app/src/main/kotlin/at/connyduck/pixelcat/components/profile/ProfileImagePagingSource.kt

61 lines
2.0 KiB
Kotlin

/*
* Copyright (C) 2020 Conny Duck
*
* This file is part of Pixelcat.
*
* Pixelcat 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.
*
* Pixelcat 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 this program. If not, see <https://www.gnu.org/licenses/>.
*/
package at.connyduck.pixelcat.components.profile
import androidx.paging.PagingSource
import androidx.paging.PagingState
import at.connyduck.pixelcat.db.AccountManager
import at.connyduck.pixelcat.model.Status
import at.connyduck.pixelcat.network.FediverseApi
class ProfileImagePagingSource(
private val api: FediverseApi,
private val accountId: String?,
private val accountManager: AccountManager
) : PagingSource<String, Status>() {
override suspend fun load(params: LoadParams<String>): LoadResult<String, Status> {
if (params is LoadParams.Prepend) {
// we only load from top
return LoadResult.Page(data = emptyList(), nextKey = null, prevKey = null)
}
val id = accountId ?: accountManager.activeAccount()?.accountId!!
return api.accountStatuses(
id,
maxId = params.key,
limit = params.loadSize,
onlyMedia = true,
excludeReblogs = true
).fold(
{
LoadResult.Page(data = it, prevKey = null, nextKey = it.lastOrNull()?.id)
},
{
LoadResult.Error(it)
}
)
}
override fun getRefreshKey(state: PagingState<String, Status>): String? = null
}