Twidere-App-Android-Twitter.../twidere/src/main/kotlin/org/mariotaku/twidere/fragment/CursorActivitiesFragment.kt

374 lines
14 KiB
Kotlin

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