mirror of https://github.com/TeamNewPipe/NewPipe
357 lines
13 KiB
Kotlin
357 lines
13 KiB
Kotlin
/*
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* Copyright 2019 Mauricio Colli <mauriciocolli@outlook.com>
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* FeedFragment.kt is part of NewPipe
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*
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* License: GPL-3.0+
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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.schabi.newpipe.local.feed
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import android.content.Intent
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import android.os.Bundle
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import android.os.Parcelable
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import android.view.LayoutInflater
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import android.view.Menu
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import android.view.MenuInflater
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import android.view.MenuItem
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import android.view.View
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import android.view.ViewGroup
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import androidx.appcompat.app.AlertDialog
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import androidx.core.content.edit
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import androidx.core.os.bundleOf
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import androidx.core.view.isVisible
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import androidx.lifecycle.Observer
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import androidx.lifecycle.ViewModelProvider
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import androidx.preference.PreferenceManager
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import androidx.swiperefreshlayout.widget.SwipeRefreshLayout
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import icepick.State
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import org.schabi.newpipe.R
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import org.schabi.newpipe.database.feed.model.FeedGroupEntity
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import org.schabi.newpipe.databinding.ErrorRetryBinding
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import org.schabi.newpipe.databinding.FragmentFeedBinding
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import org.schabi.newpipe.fragments.list.BaseListFragment
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import org.schabi.newpipe.local.feed.service.FeedLoadService
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import org.schabi.newpipe.report.UserAction
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import org.schabi.newpipe.util.AnimationUtils.animateView
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import org.schabi.newpipe.util.Localization
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import java.util.Calendar
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class FeedFragment : BaseListFragment<FeedState, Unit>() {
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private var _feedBinding: FragmentFeedBinding? = null
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private val feedBinding get() = _feedBinding!!
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private var _errorBinding: ErrorRetryBinding? = null
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private val errorBinding get() = _errorBinding!!
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private lateinit var viewModel: FeedViewModel
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private lateinit var swipeRefreshLayout: SwipeRefreshLayout
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@State
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@JvmField
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var listState: Parcelable? = null
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private var groupId = FeedGroupEntity.GROUP_ALL_ID
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private var groupName = ""
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private var oldestSubscriptionUpdate: Calendar? = null
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init {
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setHasOptionsMenu(true)
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setUseDefaultStateSaving(false)
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}
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override fun onCreate(savedInstanceState: Bundle?) {
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super.onCreate(savedInstanceState)
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groupId = arguments?.getLong(KEY_GROUP_ID, FeedGroupEntity.GROUP_ALL_ID)
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?: FeedGroupEntity.GROUP_ALL_ID
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groupName = arguments?.getString(KEY_GROUP_NAME) ?: ""
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}
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override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
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return inflater.inflate(R.layout.fragment_feed, container, false)
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}
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override fun onViewCreated(rootView: View, savedInstanceState: Bundle?) {
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super.onViewCreated(rootView, savedInstanceState)
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_feedBinding = FragmentFeedBinding.bind(rootView)
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_errorBinding = feedBinding.errorPanel
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feedBinding.swiperefresh.setOnRefreshListener { reloadContent() }
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viewModel = ViewModelProvider(this, FeedViewModel.Factory(requireContext(), groupId)).get(FeedViewModel::class.java)
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viewModel.stateLiveData.observe(viewLifecycleOwner, Observer { it?.let(::handleResult) })
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}
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override fun onPause() {
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super.onPause()
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listState = _feedBinding?.itemsList?.layoutManager?.onSaveInstanceState()
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}
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override fun onResume() {
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super.onResume()
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updateRelativeTimeViews()
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}
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override fun setUserVisibleHint(isVisibleToUser: Boolean) {
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super.setUserVisibleHint(isVisibleToUser)
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if (!isVisibleToUser && view != null) {
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updateRelativeTimeViews()
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}
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}
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override fun initListeners() {
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super.initListeners()
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// Using the non-null property may result in a NullPointerException
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_feedBinding?.refreshRootView?.setOnClickListener {
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triggerUpdate()
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}
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}
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// /////////////////////////////////////////////////////////////////////////
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// Menu
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// /////////////////////////////////////////////////////////////////////////
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override fun onCreateOptionsMenu(menu: Menu, inflater: MenuInflater) {
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super.onCreateOptionsMenu(menu, inflater)
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activity.supportActionBar?.setTitle(R.string.fragment_feed_title)
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activity.supportActionBar?.subtitle = groupName
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inflater.inflate(R.menu.menu_feed_fragment, menu)
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if (useAsFrontPage) {
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menu.findItem(R.id.menu_item_feed_help).setShowAsAction(MenuItem.SHOW_AS_ACTION_NEVER)
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}
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}
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override fun onOptionsItemSelected(item: MenuItem): Boolean {
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if (item.itemId == R.id.menu_item_feed_help) {
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val sharedPreferences = PreferenceManager.getDefaultSharedPreferences(requireContext())
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val usingDedicatedMethod = sharedPreferences.getBoolean(getString(R.string.feed_use_dedicated_fetch_method_key), false)
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val enableDisableButtonText = when {
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usingDedicatedMethod -> R.string.feed_use_dedicated_fetch_method_disable_button
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else -> R.string.feed_use_dedicated_fetch_method_enable_button
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}
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AlertDialog.Builder(requireContext())
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.setMessage(R.string.feed_use_dedicated_fetch_method_help_text)
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.setNeutralButton(enableDisableButtonText) { _, _ ->
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sharedPreferences.edit {
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putBoolean(getString(R.string.feed_use_dedicated_fetch_method_key), !usingDedicatedMethod)
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}
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}
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.setPositiveButton(resources.getString(R.string.finish), null)
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.create()
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.show()
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return true
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}
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return super.onOptionsItemSelected(item)
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}
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override fun onDestroyOptionsMenu() {
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super.onDestroyOptionsMenu()
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activity?.supportActionBar?.subtitle = null
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}
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override fun onDestroy() {
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super.onDestroy()
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activity?.supportActionBar?.subtitle = null
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}
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override fun onDestroyView() {
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_feedBinding = null
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super.onDestroyView()
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}
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// /////////////////////////////////////////////////////////////////////////
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// Handling
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// /////////////////////////////////////////////////////////////////////////
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override fun showLoading() {
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animateView(feedBinding.refreshRootView, false, 0)
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animateView(feedBinding.itemsList, false, 0)
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animateView(feedBinding.loadingProgressBar, true, 200)
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animateView(feedBinding.loadingProgressText, true, 200)
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animateView(feedBinding.emptyStateView.root, false, 0)
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animateView(errorBinding.root, false, 0)
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}
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override fun hideLoading() {
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animateView(feedBinding.refreshRootView, true, 200)
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animateView(feedBinding.itemsList, true, 300)
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animateView(feedBinding.loadingProgressBar, false, 0)
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animateView(feedBinding.loadingProgressText, false, 0)
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animateView(feedBinding.emptyStateView.root, false, 0)
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animateView(errorBinding.root, false, 0)
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feedBinding.swiperefresh.isRefreshing = false
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}
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override fun showEmptyState() {
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animateView(feedBinding.refreshRootView, true, 200)
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animateView(feedBinding.itemsList, false, 0)
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animateView(feedBinding.loadingProgressBar, false, 0)
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animateView(feedBinding.loadingProgressText, false, 0)
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animateView(feedBinding.emptyStateView.root, true, 800)
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animateView(errorBinding.root, false, 0)
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}
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override fun showError(message: String, showRetryButton: Boolean) {
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infoListAdapter.clearStreamItemList()
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animateView(feedBinding.refreshRootView, false, 120)
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animateView(feedBinding.itemsList, false, 120)
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animateView(feedBinding.loadingProgressBar, false, 120)
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animateView(feedBinding.loadingProgressText, false, 120)
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errorBinding.errorMessageView.text = message
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animateView(errorBinding.errorButtonRetry, showRetryButton, if (showRetryButton) 600 else 0)
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animateView(errorBinding.root, true, 300)
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}
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override fun handleResult(result: FeedState) {
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when (result) {
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is FeedState.ProgressState -> handleProgressState(result)
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is FeedState.LoadedState -> handleLoadedState(result)
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is FeedState.ErrorState -> if (handleErrorState(result)) return
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}
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updateRefreshViewState()
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}
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private fun handleProgressState(progressState: FeedState.ProgressState) {
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showLoading()
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val isIndeterminate = progressState.currentProgress == -1 &&
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progressState.maxProgress == -1
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if (!isIndeterminate) {
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feedBinding.loadingProgressText.text = "${progressState.currentProgress}/${progressState.maxProgress}"
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} else if (progressState.progressMessage > 0) {
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_feedBinding?.loadingProgressText?.setText(progressState.progressMessage)
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} else {
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_feedBinding?.loadingProgressText?.text = "∞/∞"
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}
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feedBinding.loadingProgressBar.isIndeterminate = isIndeterminate ||
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(progressState.maxProgress > 0 && progressState.currentProgress == 0)
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feedBinding.loadingProgressBar.progress = progressState.currentProgress
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feedBinding.loadingProgressBar.max = progressState.maxProgress
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}
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private fun handleLoadedState(loadedState: FeedState.LoadedState) {
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infoListAdapter.setInfoItemList(loadedState.items)
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listState?.run {
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feedBinding.itemsList.layoutManager?.onRestoreInstanceState(listState)
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listState = null
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}
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oldestSubscriptionUpdate = loadedState.oldestUpdate
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val loadedCount = loadedState.notLoadedCount > 0
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feedBinding.refreshSubtitleText.isVisible = loadedCount
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if (loadedCount) {
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feedBinding.refreshSubtitleText.text = getString(
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R.string.feed_subscription_not_loaded_count,
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loadedState.notLoadedCount
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)
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}
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if (loadedState.itemsErrors.isNotEmpty()) {
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showSnackBarError(
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loadedState.itemsErrors, UserAction.REQUESTED_FEED,
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"none", "Loading feed", R.string.general_error
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)
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}
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if (loadedState.items.isEmpty()) {
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showEmptyState()
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} else {
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hideLoading()
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}
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}
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private fun handleErrorState(errorState: FeedState.ErrorState): Boolean {
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hideLoading()
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errorState.error?.let {
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onError(errorState.error)
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return true
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}
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return false
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}
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private fun updateRelativeTimeViews() {
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updateRefreshViewState()
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infoListAdapter.notifyDataSetChanged()
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}
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private fun updateRefreshViewState() {
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val oldestSubscriptionUpdateText = when {
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oldestSubscriptionUpdate != null -> Localization.relativeTime(oldestSubscriptionUpdate!!)
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else -> "—"
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}
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feedBinding.refreshText.text = getString(R.string.feed_oldest_subscription_update, oldestSubscriptionUpdateText)
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}
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// /////////////////////////////////////////////////////////////////////////
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// Load Service Handling
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// /////////////////////////////////////////////////////////////////////////
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override fun doInitialLoadLogic() {}
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override fun reloadContent() = triggerUpdate()
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override fun loadMoreItems() {}
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override fun hasMoreItems() = false
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private fun triggerUpdate() {
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getActivity()?.startService(
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Intent(requireContext(), FeedLoadService::class.java).apply {
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putExtra(FeedLoadService.EXTRA_GROUP_ID, groupId)
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}
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)
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listState = null
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}
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override fun onError(exception: Throwable): Boolean {
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if (super.onError(exception)) return true
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if (useAsFrontPage) {
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showSnackBarError(exception, UserAction.REQUESTED_FEED, "none", "Loading Feed", 0)
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return true
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}
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onUnrecoverableError(exception, UserAction.REQUESTED_FEED, "none", "Loading Feed", 0)
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return true
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}
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companion object {
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const val KEY_GROUP_ID = "ARG_GROUP_ID"
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const val KEY_GROUP_NAME = "ARG_GROUP_NAME"
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@JvmStatic
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fun newInstance(groupId: Long = FeedGroupEntity.GROUP_ALL_ID, groupName: String? = null): FeedFragment {
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val feedFragment = FeedFragment()
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feedFragment.arguments = bundleOf(KEY_GROUP_ID to groupId, KEY_GROUP_NAME to groupName)
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return feedFragment
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}
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}
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}
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