mirror of https://github.com/tuskyapp/Tusky.git
Konrad Pozniak
5 years ago
committed by
GitHub
5 changed files with 154 additions and 184 deletions
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/* Copyright 2019 Tusky Contributors |
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* |
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* This file is a part of Tusky. |
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* |
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* This program is free software; you can redistribute it and/or modify it under the terms of the |
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* GNU General Public License as published by the Free Software Foundation; either version 3 of the |
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* License, or (at your option) any later version. |
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* |
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* Tusky is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even |
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* the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General |
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* Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License along with Tusky; if not, |
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* see <http://www.gnu.org/licenses>. */ |
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package com.keylesspalace.tusky.components.scheduled |
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import android.util.Log |
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import androidx.lifecycle.MutableLiveData |
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import androidx.paging.DataSource |
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import androidx.paging.ItemKeyedDataSource |
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import com.keylesspalace.tusky.entity.ScheduledStatus |
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import com.keylesspalace.tusky.network.MastodonApi |
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import com.keylesspalace.tusky.util.NetworkState |
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import io.reactivex.rxjava3.disposables.CompositeDisposable |
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import io.reactivex.rxjava3.kotlin.addTo |
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class ScheduledTootDataSourceFactory( |
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private val mastodonApi: MastodonApi, |
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private val disposables: CompositeDisposable |
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): DataSource.Factory<String, ScheduledStatus>() { |
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private val scheduledTootsCache = mutableListOf<ScheduledStatus>() |
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private var dataSource: ScheduledTootDataSource? = null |
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val networkState = MutableLiveData<NetworkState>() |
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override fun create(): DataSource<String, ScheduledStatus> { |
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return ScheduledTootDataSource(mastodonApi, disposables, scheduledTootsCache, networkState).also { |
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dataSource = it |
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} |
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} |
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fun reload() { |
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scheduledTootsCache.clear() |
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dataSource?.invalidate() |
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} |
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fun remove(status: ScheduledStatus) { |
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scheduledTootsCache.remove(status) |
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dataSource?.invalidate() |
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} |
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} |
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class ScheduledTootDataSource( |
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private val mastodonApi: MastodonApi, |
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private val disposables: CompositeDisposable, |
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private val scheduledTootsCache: MutableList<ScheduledStatus>, |
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private val networkState: MutableLiveData<NetworkState> |
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): ItemKeyedDataSource<String, ScheduledStatus>() { |
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override fun loadInitial(params: LoadInitialParams<String>, callback: LoadInitialCallback<ScheduledStatus>) { |
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if(scheduledTootsCache.isNotEmpty()) { |
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callback.onResult(scheduledTootsCache.toList()) |
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} else { |
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networkState.postValue(NetworkState.LOADING) |
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mastodonApi.scheduledStatuses(limit = params.requestedLoadSize) |
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.subscribe({ newData -> |
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scheduledTootsCache.addAll(newData) |
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callback.onResult(newData) |
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networkState.postValue(NetworkState.LOADED) |
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}, { throwable -> |
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Log.w("ScheduledTootDataSource", "Error loading scheduled statuses", throwable) |
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networkState.postValue(NetworkState.error(throwable.message)) |
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}) |
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.addTo(disposables) |
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} |
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} |
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override fun loadAfter(params: LoadParams<String>, callback: LoadCallback<ScheduledStatus>) { |
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mastodonApi.scheduledStatuses(limit = params.requestedLoadSize, maxId = params.key) |
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.subscribe({ newData -> |
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scheduledTootsCache.addAll(newData) |
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callback.onResult(newData) |
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}, { throwable -> |
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Log.w("ScheduledTootDataSource", "Error loading scheduled statuses", throwable) |
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networkState.postValue(NetworkState.error(throwable.message)) |
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}) |
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.addTo(disposables) |
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} |
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override fun loadBefore(params: LoadParams<String>, callback: LoadCallback<ScheduledStatus>) { |
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// we are always loading from beginning to end |
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} |
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override fun getKey(item: ScheduledStatus): String { |
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return item.id |
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} |
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} |
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@ -0,0 +1,79 @@ |
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/* Copyright 2021 Tusky Contributors |
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* |
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* This file is a part of Tusky. |
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* |
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* This program is free software; you can redistribute it and/or modify it under the terms of the |
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* GNU General Public License as published by the Free Software Foundation; either version 3 of the |
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* License, or (at your option) any later version. |
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* |
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* Tusky is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even |
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* the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General |
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* Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License along with Tusky; if not, |
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* see <http://www.gnu.org/licenses>. */ |
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package com.keylesspalace.tusky.components.scheduled |
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import android.util.Log |
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import androidx.paging.PagingSource |
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import androidx.paging.PagingState |
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import com.keylesspalace.tusky.entity.ScheduledStatus |
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import com.keylesspalace.tusky.network.MastodonApi |
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import kotlinx.coroutines.rx3.await |
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class ScheduledTootPagingSourceFactory( |
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private val mastodonApi: MastodonApi |
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): () -> ScheduledTootPagingSource { |
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private val scheduledTootsCache = mutableListOf<ScheduledStatus>() |
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private var pagingSource: ScheduledTootPagingSource? = null |
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override fun invoke(): ScheduledTootPagingSource { |
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return ScheduledTootPagingSource(mastodonApi, scheduledTootsCache).also { |
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pagingSource = it |
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} |
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} |
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fun remove(status: ScheduledStatus) { |
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scheduledTootsCache.remove(status) |
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pagingSource?.invalidate() |
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} |
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} |
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class ScheduledTootPagingSource( |
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private val mastodonApi: MastodonApi, |
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private val scheduledTootsCache: MutableList<ScheduledStatus> |
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): PagingSource<String, ScheduledStatus>() { |
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override fun getRefreshKey(state: PagingState<String, ScheduledStatus>): String? { |
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return null |
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} |
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override suspend fun load(params: LoadParams<String>): LoadResult<String, ScheduledStatus> { |
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return if (params is LoadParams.Refresh && scheduledTootsCache.isNotEmpty()) { |
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LoadResult.Page( |
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data = scheduledTootsCache, |
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prevKey = null, |
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nextKey = scheduledTootsCache.lastOrNull()?.id |
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) |
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} else { |
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try { |
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val result = mastodonApi.scheduledStatuses( |
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maxId = params.key, |
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limit = params.loadSize |
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).await() |
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LoadResult.Page( |
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data = result, |
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prevKey = null, |
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nextKey = result.lastOrNull()?.id |
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) |
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} catch (e: Exception) { |
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Log.w("ScheduledTootPgngSrc", "Error loading scheduled statuses", e) |
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LoadResult.Error(e) |
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} |
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} |
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} |
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} |
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