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/*
* Copyright (C) 2022-2023 MURENA SAS
* Copyright (C) 2021 E FOUNDATION
*
* 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 <https://www.gnu.org/licenses/>.
*/
package foundation.e.advancedprivacy.features.trackers
import android.content.ActivityNotFoundException
import android.content.Intent
import android.os.Bundle
import android.text.Spannable
import android.text.SpannableString
import android.text.method.LinkMovementMethod
import android.text.style.ClickableSpan
import android.text.style.ForegroundColorSpan
import android.text.style.UnderlineSpan
import android.view.View
import android.view.ViewTreeObserver
import android.widget.Toast
import androidx.core.content.ContextCompat
import androidx.core.view.isVisible
import androidx.lifecycle.Lifecycle
import androidx.lifecycle.lifecycleScope
import androidx.lifecycle.repeatOnLifecycle
import androidx.navigation.fragment.findNavController
import androidx.viewpager2.widget.ViewPager2
import com.google.android.material.tabs.TabLayoutMediator
import foundation.e.advancedprivacy.R
import foundation.e.advancedprivacy.common.GraphHolder
import foundation.e.advancedprivacy.common.NavToolbarFragment
import foundation.e.advancedprivacy.common.extensions.findViewHolderForAdapterPosition
import foundation.e.advancedprivacy.common.extensions.updatePagerHeightForChild
import foundation.e.advancedprivacy.databinding.FragmentTrackersBinding
import foundation.e.advancedprivacy.databinding.TrackersItemGraphBinding
import foundation.e.advancedprivacy.domain.entities.TrackersPeriodicStatistics
import kotlinx.coroutines.launch
import org.koin.androidx.viewmodel.ext.android.viewModel
class TrackersFragment : NavToolbarFragment(R.layout.fragment_trackers) {
private val viewModel: TrackersViewModel by viewModel()
private lateinit var binding: FragmentTrackersBinding
private var dayGraphHolder: GraphHolder? = null
private var monthGraphHolder: GraphHolder? = null
private var yearGraphHolder: GraphHolder? = null
private lateinit var tabAdapter: ListsTabPagerAdapter
override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
super.onViewCreated(view, savedInstanceState)
binding = FragmentTrackersBinding.bind(view)
dayGraphHolder = GraphHolder(binding.graphDay.graph, requireContext(), false)
monthGraphHolder = GraphHolder(binding.graphMonth.graph, requireContext(), false)
yearGraphHolder = GraphHolder(binding.graphYear.graph, requireContext(), false)
tabAdapter = ListsTabPagerAdapter(requireContext(), viewModel)
binding.listsPager.adapter = tabAdapter
TabLayoutMediator(binding.listsTabs, binding.listsPager) { tab, position ->
tab.text = getString(
when (position) {
TAB_APPS -> R.string.trackers_toggle_list_apps
else -> R.string.trackers_toggle_list_trackers
}
)
}.attach()
binding.listsPager.registerOnPageChangeCallback(object : ViewPager2.OnPageChangeCallback() {
override fun onPageScrollStateChanged(state: Int) {
super.onPageScrollStateChanged(state)
if (state == ViewPager2.SCROLL_STATE_IDLE) {
updatePagerHeight()
}
}
})
setupTrackersInfos()
listenViewModel()
}
private fun listenViewModel() {
with(viewLifecycleOwner) {
lifecycleScope.launch {
repeatOnLifecycle(Lifecycle.State.STARTED) {
render(viewModel.state.value)
viewModel.state.collect(::render)
}
}
lifecycleScope.launch {
repeatOnLifecycle(Lifecycle.State.STARTED) {
viewModel.singleEvents.collect(::handleEvents)
}
}
lifecycleScope.launch {
repeatOnLifecycle(Lifecycle.State.STARTED) {
viewModel.navigate.collect(findNavController()::navigate)
}
}
lifecycleScope.launch {
repeatOnLifecycle(Lifecycle.State.STARTED) {
viewModel.doOnStartedState()
}
}
}
}
private fun handleEvents(event: TrackersViewModel.SingleEvent) {
when (event) {
is TrackersViewModel.SingleEvent.ErrorEvent -> {
displayToast(event.error)
}
is TrackersViewModel.SingleEvent.OpenUrl -> {
try {
startActivity(Intent(Intent.ACTION_VIEW, event.url))
} catch (e: ActivityNotFoundException) {
Toast.makeText(
requireContext(),
R.string.error_no_activity_view_url,
Toast.LENGTH_SHORT
).show()
}
}
}
}
private fun setupTrackersInfos() {
val infoText = getString(R.string.trackers_info)
val moreText = getString(R.string.trackers_info_more)
val spannable = SpannableString("$infoText $moreText")
val startIndex = infoText.length + 1
val endIndex = spannable.length
spannable.setSpan(
ForegroundColorSpan(ContextCompat.getColor(requireContext(), R.color.accent)),
startIndex,
endIndex,
Spannable.SPAN_INCLUSIVE_EXCLUSIVE
)
spannable.setSpan(UnderlineSpan(), startIndex, endIndex, Spannable.SPAN_INCLUSIVE_EXCLUSIVE)
spannable.setSpan(
object : ClickableSpan() {
override fun onClick(p0: View) {
viewModel.onClickLearnMore()
}
},
startIndex, endIndex, Spannable.SPAN_INCLUSIVE_EXCLUSIVE
)
with(binding.trackersInfo) {
linksClickable = true
isClickable = true
movementMethod = LinkMovementMethod.getInstance()
text = spannable
}
}
private var oldPosition = -1
private val layoutListener = ViewTreeObserver.OnGlobalLayoutListener {
binding.listsPager.findViewHolderForAdapterPosition(binding.listsPager.currentItem)
.let { currentViewHolder ->
currentViewHolder?.itemView?.let { binding.listsPager.updatePagerHeightForChild(it) }
}
}
private fun updatePagerHeight() {
with(binding.listsPager) {
val position = currentItem
if (position == oldPosition) return
if (oldPosition > 0) {
val oldItem = findViewHolderForAdapterPosition(oldPosition)?.itemView
oldItem?.viewTreeObserver?.removeOnGlobalLayoutListener(layoutListener)
}
val newItem = findViewHolderForAdapterPosition(position)?.itemView
newItem?.viewTreeObserver?.addOnGlobalLayoutListener(layoutListener)
oldPosition = position
adapter?.notifyItemChanged(position)
}
}
private fun displayToast(message: String) {
Toast.makeText(requireContext(), message, Toast.LENGTH_SHORT).show()
}
private fun render(state: TrackersState) {
state.dayStatistics?.let { renderGraph(it, dayGraphHolder!!, binding.graphDay) }
state.monthStatistics?.let { renderGraph(it, monthGraphHolder!!, binding.graphMonth) }
state.yearStatistics?.let { renderGraph(it, yearGraphHolder!!, binding.graphYear) }
updatePagerHeight()
tabAdapter.updateDataSet(state.apps, state.trackers)
}
private fun renderGraph(
statistics: TrackersPeriodicStatistics,
graphHolder: GraphHolder,
graphBinding: TrackersItemGraphBinding
) {
if (statistics.callsBlockedNLeaked.all { it.first == 0 && it.second == 0 }) {
graphBinding.graph.visibility = View.INVISIBLE
graphBinding.graphEmpty.isVisible = true
} else {
graphBinding.graph.isVisible = true
graphBinding.graphEmpty.isVisible = false
graphHolder.data = statistics.callsBlockedNLeaked
graphHolder.labels = statistics.periods
graphBinding.trackersCountLabel.text =
getString(R.string.trackers_count_label, statistics.trackersCount)
}
}
override fun onDestroyView() {
super.onDestroyView()
kotlin.runCatching {
if (oldPosition >= 0) {
val oldItem = binding.listsPager.findViewHolderForAdapterPosition(oldPosition)
oldItem?.itemView?.viewTreeObserver?.removeOnGlobalLayoutListener(layoutListener)
}
}
dayGraphHolder = null
monthGraphHolder = null
yearGraphHolder = null
}
}
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