374 lines
14 KiB
Kotlin
374 lines
14 KiB
Kotlin
/*
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* Twidere - Twitter client for Android
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*
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* Copyright (C) 2012-2015 Mariotaku Lee <mariotaku.lee@gmail.com>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General 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
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package org.mariotaku.twidere.fragment
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import android.accounts.AccountManager
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import android.accounts.OnAccountsUpdateListener
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import android.content.Context
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import android.database.ContentObserver
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import android.database.Cursor
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import android.net.Uri
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import android.os.Bundle
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import android.os.Handler
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import androidx.loader.content.Loader
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import android.widget.Toast
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import com.squareup.otto.Subscribe
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import org.mariotaku.ktextension.*
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import org.mariotaku.library.objectcursor.ObjectCursor
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import org.mariotaku.sqliteqb.library.Columns.Column
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import org.mariotaku.sqliteqb.library.Expression
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import org.mariotaku.twidere.R
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import org.mariotaku.twidere.adapter.iface.ILoadMoreSupportAdapter
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import org.mariotaku.twidere.adapter.iface.ILoadMoreSupportAdapter.IndicatorPosition
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import org.mariotaku.twidere.annotation.FilterScope
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import org.mariotaku.twidere.constant.IntentConstants.EXTRA_FROM_USER
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import org.mariotaku.twidere.extension.queryOne
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import org.mariotaku.twidere.loader.ExtendedObjectCursorLoader
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import org.mariotaku.twidere.model.*
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import org.mariotaku.twidere.model.event.*
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import org.mariotaku.twidere.model.pagination.SinceMaxPagination
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import org.mariotaku.twidere.provider.TwidereDataStore.Activities
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import org.mariotaku.twidere.provider.TwidereDataStore.Filters
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import org.mariotaku.twidere.task.twitter.GetStatusesTask
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import org.mariotaku.twidere.util.DataStoreUtils
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import org.mariotaku.twidere.util.DataStoreUtils.getTableNameByUri
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import org.mariotaku.twidere.util.ErrorInfoStore
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import org.mariotaku.twidere.util.Utils
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import kotlin.math.max
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import kotlin.math.min
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/**
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* Displays statuses from database
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* Created by mariotaku on 14/12/3.
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*/
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abstract class CursorActivitiesFragment : AbsActivitiesFragment() {
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override val accountKeys: Array<UserKey>
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get() = Utils.getAccountKeys(requireContext(), arguments) ?: DataStoreUtils.getActivatedAccountKeys(requireContext())
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abstract val contentUri: Uri
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protected abstract val errorInfoKey: String
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protected abstract val notificationType: Int
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protected abstract val isFilterEnabled: Boolean
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@FilterScope
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protected abstract val filterScopes: Int
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private var contentObserver: ContentObserver? = null
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private val accountListener: OnAccountsUpdateListener = OnAccountsUpdateListener {
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reloadActivities()
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}
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private val sortOrder: String
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get() = Activities.DEFAULT_SORT_ORDER
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override fun onStart() {
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super.onStart()
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if (contentObserver == null) {
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contentObserver = object : ContentObserver(Handler()) {
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override fun onChange(selfChange: Boolean) {
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reloadActivities()
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}
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}
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context?.contentResolver?.registerContentObserver(Filters.CONTENT_URI, true, contentObserver!!)
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}
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AccountManager.get(context).addOnAccountsUpdatedListenerSafe(accountListener, updateImmediately = false)
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updateRefreshState()
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reloadActivities()
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}
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override fun onStop() {
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if (contentObserver != null) {
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context?.contentResolver?.unregisterContentObserver(contentObserver!!)
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contentObserver = null
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}
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AccountManager.get(context).removeOnAccountsUpdatedListenerSafe(accountListener)
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super.onStop()
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}
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override fun onCreateActivitiesLoader(context: Context, args: Bundle, fromUser: Boolean): Loader<List<ParcelableActivity>> {
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val uri = contentUri
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val table = getTableNameByUri(uri)!!
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val sortOrder = sortOrder
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val accountKeys = accountKeys
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val accountWhere = Expression.inArgs(Column(Activities.ACCOUNT_KEY), accountKeys.size)
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val filterWhere = getFiltersWhere(table)
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val where: Expression
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if (filterWhere != null) {
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where = Expression.and(accountWhere, filterWhere)
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} else {
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where = accountWhere
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}
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val accountSelectionArgs = Array(accountKeys.size) {
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accountKeys[it].toString()
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}
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val expression = processWhere(where, accountSelectionArgs)
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val selection = expression.sql
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adapter.showAccountsColor = accountKeys.size > 1
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val projection = activityColumnsLite
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return CursorActivitiesLoader(context, uri, projection, selection, expression.parameters,
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sortOrder, fromUser, filterScopes).apply {
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isUseCache = false
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}
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}
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override fun onContentLoaded(loader: Loader<List<ParcelableActivity>>, data: List<ParcelableActivity>?) {
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showContentOrError()
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}
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override fun createMessageBusCallback(): Any {
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return CursorActivitiesBusCallback()
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}
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override fun hasMoreData(data: List<ParcelableActivity>?): Boolean {
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return data?.size != 0
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}
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override fun onLoaderReset(loader: Loader<List<ParcelableActivity>>) {
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adapter.setData(null)
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}
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override fun onLoadMoreContents(@IndicatorPosition position: Long) {
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// Only supports load from end, skip START flag
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if (ILoadMoreSupportAdapter.START in position || refreshing) return
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super.onLoadMoreContents(position)
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if (position == 0L) return
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val currentContext = context ?: return
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val contentUri = this.contentUri
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getActivities(object : RefreshTaskParam {
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override val accountKeys by lazy {
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this@CursorActivitiesFragment.accountKeys
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}
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override val pagination by lazy {
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val keys = accountKeys.toNulls()
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val maxIds = DataStoreUtils.getRefreshOldestActivityMaxPositions(currentContext, contentUri,
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keys)
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val maxSortIds = DataStoreUtils.getRefreshOldestActivityMaxSortPositions(currentContext,
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contentUri, keys)
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return@lazy Array(keys.size) { idx ->
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SinceMaxPagination.maxId(maxIds[idx], maxSortIds[idx])
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}
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}
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override val shouldAbort: Boolean
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get() = currentContext == null
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})
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}
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override fun triggerRefresh(): Boolean {
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super.triggerRefresh()
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val contentUri = this.contentUri
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getActivities(object : RefreshTaskParam {
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override val accountKeys by lazy {
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this@CursorActivitiesFragment.accountKeys
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}
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override val pagination: Array<SinceMaxPagination?>? by lazy {
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val context = context ?: return@lazy null
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val keys = accountKeys.toNulls()
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val sinceIds = DataStoreUtils.getRefreshNewestActivityMaxPositions(context,
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contentUri, keys)
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val sinceSortIds = DataStoreUtils.getRefreshNewestActivityMaxSortPositions(context,
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contentUri, keys)
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return@lazy Array(keys.size) { idx ->
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SinceMaxPagination.sinceId(sinceIds[idx], sinceSortIds[idx])
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}
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}
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override val shouldAbort: Boolean
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get() = context == null
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})
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return true
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}
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override fun saveReadPosition(position: Int) {
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super.saveReadPosition(position)
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if (position == 0) {
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clearNotifications()
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}
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}
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override fun getFullActivity(position: Int): ParcelableActivity? {
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val _id = adapter.getRowId(position)
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val where = Expression.equals(Activities._ID, _id).sql
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return context?.contentResolver?.queryOne(contentUri, Activities.COLUMNS, where, null, null,
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ParcelableActivity::class.java)
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}
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protected fun getFiltersWhere(table: String): Expression? {
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if (!isFilterEnabled) return null
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return DataStoreUtils.buildStatusFilterWhereClause(preferences, table, null, filterScopes)
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}
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protected open fun processWhere(where: Expression, whereArgs: Array<String>): ParameterizedExpression {
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return ParameterizedExpression(where, whereArgs)
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}
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protected abstract fun updateRefreshState()
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protected fun reloadActivities() {
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if (activity == null || isDetached) return
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val args = Bundle()
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val fragmentArgs = arguments
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if (fragmentArgs != null) {
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args.putAll(fragmentArgs)
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args.putBoolean(EXTRA_FROM_USER, true)
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}
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loaderManager.restartLoader(loaderId, args, this)
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}
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fun replaceStatusStates(result: ParcelableStatus?) {
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if (result == null) return
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val lm = layoutManager
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val rangeStart = max(adapter.activityStartIndex, lm.findFirstVisibleItemPosition())
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val rangeEnd = min(lm.findLastVisibleItemPosition(), adapter.activityStartIndex + adapter.getActivityCount(false) - 1)
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loop@ for (i in rangeStart..rangeEnd) {
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val activity = adapter.getActivity(i, false)
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if (result.account_key == activity.account_key && result.id == activity.id) {
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if (result.id != activity.id) {
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continue@loop
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}
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if (result.id == activity.id || result.id == activity.retweet_id
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|| result.id == activity.my_retweet_id) {
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activity.is_favorite = result.is_favorite
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activity.reply_count = result.reply_count
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activity.retweet_count = result.retweet_count
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activity.favorite_count = result.favorite_count
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}
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}
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}
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adapter.notifyItemRangeChanged(rangeStart, rangeEnd)
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}
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private fun showContentOrError() {
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val accountKeys = accountKeys
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val currentContext = context ?: return
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if (adapter.itemCount > 0) {
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showContent()
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} else if (accountKeys.isNotEmpty()) {
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val errorInfo = ErrorInfoStore.getErrorInfo(currentContext,
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errorInfoStore[errorInfoKey, accountKeys[0]])
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if (errorInfo != null) {
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showEmpty(errorInfo.icon, errorInfo.message)
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} else {
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showEmpty(R.drawable.ic_info_refresh, getString(R.string.swipe_down_to_refresh))
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}
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} else {
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showError(R.drawable.ic_info_accounts, getString(R.string.message_toast_no_account_selected))
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}
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}
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private fun updateFavoritedStatus(status: ParcelableStatus) {
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activity ?: return
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replaceStatusStates(status)
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}
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private fun clearNotifications() {
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if (context != null && userVisibleHint) {
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for (accountKey in accountKeys) {
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twitterWrapper.clearNotificationAsync(notificationType, accountKey)
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}
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}
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}
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protected inner class CursorActivitiesBusCallback {
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@Subscribe
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fun notifyGetStatusesTaskChanged(event: GetActivitiesTaskEvent) {
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if (event.uri != contentUri) return
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val currentContext = context ?: return
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refreshing = event.running
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if (!event.running) {
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setLoadMoreIndicatorPosition(ILoadMoreSupportAdapter.NONE)
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refreshEnabled = true
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showContentOrError()
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val exception = event.exception
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if (exception is GetStatusesTask.GetTimelineException && userVisibleHint) {
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Toast.makeText(currentContext, exception.getToastMessage(currentContext), Toast.LENGTH_SHORT).show()
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}
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}
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}
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@Subscribe
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fun notifyFavoriteTask(event: FavoriteTaskEvent) {
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if (event.isSucceeded) {
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updateFavoritedStatus(event.status!!)
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}
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}
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@Subscribe
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fun notifyStatusDestroyed(event: StatusDestroyedEvent) {
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}
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@Subscribe
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fun notifyStatusListChanged(event: StatusListChangedEvent) {
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adapter.notifyDataSetChanged()
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}
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@Subscribe
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fun notifyStatusRetweeted(event: StatusRetweetedEvent) {
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}
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@Subscribe
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fun notifyAccountChanged(event: AccountChangedEvent) {
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}
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}
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class CursorActivitiesLoader(context: Context, uri: Uri, projection: Array<String>,
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selection: String, selectionArgs: Array<String>,
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sortOrder: String, fromUser: Boolean, @FilterScope val filterScope: Int
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) : ExtendedObjectCursorLoader<ParcelableActivity>(context, ParcelableActivity::class.java, uri,
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projection, selection, selectionArgs, sortOrder, fromUser) {
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override fun createObjectCursor(cursor: Cursor, indices: ObjectCursor.CursorIndices<ParcelableActivity>): ObjectCursor<ParcelableActivity> {
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val filteredUserKeys = DataStoreUtils.getFilteredUserKeys(context, filterScope)
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val filteredNameKeywords = DataStoreUtils.getFilteredKeywords(context, filterScope or FilterScope.TARGET_NAME)
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val filteredDescriptionKeywords = DataStoreUtils.getFilteredKeywords(context, filterScope or FilterScope.TARGET_DESCRIPTION)
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return ActivityCursor(cursor, indices, filteredUserKeys, filteredNameKeywords, filteredDescriptionKeywords)
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}
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class ActivityCursor(
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cursor: Cursor,
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indies: CursorIndices<ParcelableActivity>,
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val filteredUserIds: Array<UserKey>,
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val filteredUserNames: Array<String>,
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val filteredUserDescriptions: Array<String>
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) : ObjectCursor<ParcelableActivity>(cursor, indies)
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}
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companion object {
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val activityColumnsLite = Activities.COLUMNS - arrayOf(Activities.SOURCES, Activities.TARGETS,
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Activities.TARGET_OBJECTS, Activities.MENTIONS_JSON, Activities.CARD,
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Activities.FILTER_FLAGS, Activities.FILTER_USERS, Activities.FILTER_LINKS,
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Activities.FILTER_SOURCES, Activities.FILTER_NAMES, Activities.FILTER_TEXTS,
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Activities.FILTER_DESCRIPTIONS)
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}
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}
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