taler-android

GlobalScaffold.kt (6080B)

---

 /*
  * This file is part of GNU Taler
  * (C) 2026 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.compose
 
 import androidx.compose.foundation.background
 import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.PaddingValues
 import androidx.compose.foundation.layout.Row
 import androidx.compose.foundation.layout.RowScope
 import androidx.compose.foundation.layout.WindowInsets
 import androidx.compose.foundation.layout.WindowInsetsSides
 import androidx.compose.foundation.layout.exclude
 import androidx.compose.foundation.layout.fillMaxSize
 import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.only
 import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.layout.systemBars
 import androidx.compose.material.icons.Icons
 import androidx.compose.material.icons.automirrored.filled.ArrowBack
 import androidx.compose.material.icons.filled.BugReport
 import androidx.compose.material3.ExperimentalMaterial3Api
 import androidx.compose.material3.Icon
 import androidx.compose.material3.IconButton
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.Scaffold
 import androidx.compose.material3.ScaffoldDefaults
 import androidx.compose.material3.Text
 import androidx.compose.material3.TopAppBar
 import androidx.compose.material3.TopAppBarDefaults
 import androidx.compose.material3.rememberTopAppBarState
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.livedata.observeAsState
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.input.nestedscroll.nestedScroll
 import androidx.compose.ui.platform.LocalFocusManager
 import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.text.style.TextAlign
 import androidx.compose.ui.unit.dp
 import net.taler.wallet.R
 import net.taler.wallet.main.MainViewModel
 
 @OptIn(ExperimentalMaterial3Api::class)
 @Composable
 fun GlobalScaffold(
     model: MainViewModel?,
     modifier: Modifier = Modifier,
     title: (@Composable () -> Unit)? = null,
     navigationIcon: (@Composable () -> Unit)? = null,
     actions: @Composable RowScope.() -> Unit = {},
     floatingActionButton: @Composable () -> Unit = {},
     bottomBar: @Composable () -> Unit = {},
     tabs: @Composable () -> Unit = {},
     snackbarHost: @Composable () -> Unit = {},
     contentWindowInsets: WindowInsets = ScaffoldDefaults.contentWindowInsets.exclude(
         WindowInsets.systemBars.only(WindowInsetsSides.Bottom),
     ),
     onNavigateBack: (() -> Unit)? = null,
     content: @Composable ((PaddingValues) -> Unit),
 ) {
     val scrollBehavior = TopAppBarDefaults
         .pinnedScrollBehavior(rememberTopAppBarState())
     val localFocusManager = LocalFocusManager.current
 
     val devMode = model?.devMode?.observeAsState(false)
     val online = model?.networkManager?.networkStatus?.observeAsState(true)
 
     Scaffold(
         modifier = modifier
             .fillMaxSize()
             .nestedScroll(scrollBehavior.nestedScrollConnection),
         topBar = {
             Column {
                 if (title != null) {
                     TopAppBar(
                         title = title,
                         navigationIcon = navigationIcon ?: {
                             if (onNavigateBack != null) {
                                 IconButton(onClick = {
                                     localFocusManager.clearFocus()
                                     onNavigateBack()
                                 }) {
                                     Icon(
                                         Icons.AutoMirrored.Default.ArrowBack,
                                         contentDescription = stringResource(R.string.button_back),
                                     )
                                 }
                             }
                         },
                         actions = {
                             Row {
                                 actions()
                                 if (devMode != null && devMode.value) {
                                     IconButton(onClick = {
                                         model.showObservabilityLog()
                                     }) {
                                         Icon(
                                             Icons.Default.BugReport,
                                             contentDescription = stringResource(R.string.observability_title),
                                         )
                                     }
                                 }
                             }
                         },
                         scrollBehavior = scrollBehavior,
                     )
                 }
 
                 tabs()
 
                 if (online != null && !online.value) Text(
                     text = stringResource(R.string.offline_banner),
                     textAlign = TextAlign.Center,
                     modifier = Modifier
                         .background(MaterialTheme.colorScheme.errorContainer)
                         .padding(8.dp)
                         .fillMaxWidth(),
                     color = MaterialTheme.colorScheme.onErrorContainer,
                 )
             }
         },
         floatingActionButton = floatingActionButton,
         bottomBar = bottomBar,
         contentWindowInsets = contentWindowInsets,
         snackbarHost = snackbarHost,
     ) { innerPadding ->
         content(innerPadding)
     }
 }