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/*
* This file is part of GNU Taler
* (C) 2020 Taler Systems S.A.
*
* GNU Taler 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, or (at your option) any later version.
*
* GNU Taler 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
* GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
*/
package net.taler.wallet.balances
import android.os.Bundle
import android.transition.TransitionManager.beginDelayedTransition
import android.view.LayoutInflater
import android.view.View
import android.view.View.GONE
import android.view.View.INVISIBLE
import android.view.View.VISIBLE
import android.view.ViewGroup
import androidx.fragment.app.Fragment
import androidx.fragment.app.activityViewModels
import androidx.recyclerview.widget.DividerItemDecoration
import androidx.recyclerview.widget.LinearLayoutManager.VERTICAL
import net.taler.common.fadeIn
import net.taler.common.showError
import net.taler.wallet.MainViewModel
import net.taler.wallet.balances.BalanceState.Error
import net.taler.wallet.balances.BalanceState.Loading
import net.taler.wallet.balances.BalanceState.None
import net.taler.wallet.balances.BalanceState.Success
import net.taler.wallet.databinding.FragmentBalancesBinding
import net.taler.wallet.showError
interface BalanceClickListener {
fun onBalanceClick(scopeInfo: ScopeInfo)
}
class BalancesFragment : Fragment(),
BalanceClickListener {
private val model: MainViewModel by activityViewModels()
private lateinit var ui: FragmentBalancesBinding
private val balancesAdapter = BalanceAdapter(this)
override fun onCreateView(
inflater: LayoutInflater,
container: ViewGroup?,
savedInstanceState: Bundle?
): View {
ui = FragmentBalancesBinding.inflate(inflater, container, false)
return ui.root
}
override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
ui.mainList.apply {
adapter = balancesAdapter
addItemDecoration(DividerItemDecoration(context, VERTICAL))
}
model.balanceManager.state.observe(viewLifecycleOwner) {
onBalancesChanged(it)
}
}
private fun onBalancesChanged(state: BalanceState) {
model.showProgressBar.value = false
when (state) {
is None -> {}
is Loading -> {
model.showProgressBar.value = true
}
is Success -> {
beginDelayedTransition(view as ViewGroup)
if (state.balances.isEmpty()) {
ui.mainEmptyState.visibility = VISIBLE
ui.mainList.visibility = GONE
} else {
balancesAdapter.setItems(state.balances)
ui.mainEmptyState.visibility = INVISIBLE
ui.mainList.fadeIn()
}
}
is Error -> if (model.devMode.value == true) {
showError(state.error)
} else {
showError(state.error.userFacingMsg)
}
}
}
override fun onBalanceClick(scopeInfo: ScopeInfo) {
model.showTransactions(scopeInfo)
}
}
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