Updated on 2026-08-14
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Tangem
parent
bfeea010d0
commit
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6 changed files with 616 additions and 226 deletions
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package com.tangem.feature.swap.choosetoken.impl.ui
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import androidx.compose.foundation.background
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import androidx.compose.foundation.layout.*
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import androidx.compose.foundation.lazy.*
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import androidx.compose.material3.Text
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import androidx.compose.runtime.*
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import androidx.compose.ui.Alignment
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import androidx.compose.ui.Modifier
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import androidx.compose.ui.input.nestedscroll.nestedScroll
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import androidx.compose.ui.platform.testTag
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import androidx.compose.ui.semantics.semantics
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import androidx.compose.ui.tooling.preview.Preview
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import androidx.compose.ui.tooling.preview.PreviewParameter
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import androidx.compose.ui.tooling.preview.PreviewParameterProvider
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import androidx.compose.ui.unit.dp
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import com.tangem.common.ui.tokens.portfolioTokensList
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import com.tangem.core.ui.components.SpacerH
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import com.tangem.core.ui.components.appbar.AppBarWithBackButton
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import com.tangem.core.ui.components.buttons.common.TangemButton
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import com.tangem.core.ui.components.buttons.common.TangemButtonIconPosition
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import com.tangem.core.ui.components.buttons.common.TangemButtonSize
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import com.tangem.core.ui.components.buttons.common.TangemButtonsDefaults
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import com.tangem.core.ui.components.currency.icon.CurrencyIconState
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import com.tangem.core.ui.components.fields.SearchBar
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import com.tangem.core.ui.components.fields.TangemSearchBarDefaults
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import com.tangem.core.ui.components.fields.entity.SearchBarUM
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import com.tangem.core.ui.components.list.InfiniteListHandler
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import com.tangem.core.ui.components.marketprice.PriceChangeType
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import com.tangem.core.ui.components.token.AccountItemPreviewData
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import com.tangem.core.ui.components.token.state.TokenItemState
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import com.tangem.core.ui.components.tokenlist.TokenListItem
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import com.tangem.core.ui.components.tokenlist.state.PortfolioItemContentUM
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import com.tangem.core.ui.components.tokenlist.state.PortfolioTokensListItemUM
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import com.tangem.core.ui.components.tokenlist.state.TokensListItemUM
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import com.tangem.core.ui.decorations.roundedShapeItemDecoration
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import com.tangem.core.ui.ds.button.TangemButtonType
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import com.tangem.core.ui.ds.button.TangemButtonUM
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import com.tangem.core.ui.extensions.*
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import com.tangem.core.ui.res.TangemTheme
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import com.tangem.core.ui.res.TangemThemePreview
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import com.tangem.core.ui.test.BuyTokenScreenTestTags
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import com.tangem.core.ui.utils.lazyListItemPosition
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import com.tangem.core.ui.utils.rememberHideKeyboardNestedScrollConnection
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import com.tangem.feature.swap.models.TokenListUMData
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import com.tangem.feature.swap.models.market.state.SwapMarketState
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import com.tangem.feature.swap.presentation.R
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import com.tangem.feature.swap.ui.market.swapMarketsListItems
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import com.tangem.feature.swap.ui.preview.SwapSelectTokenPreviewProvider
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import kotlinx.collections.immutable.ImmutableList
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import kotlinx.collections.immutable.persistentListOf
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import kotlinx.collections.immutable.toPersistentList
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import kotlin.random.Random
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private const val LOAD_MORE_BUFFER = 25
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@Composable
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internal fun ChooseTokenScreen(state: ChooseTokenUM, modifier: Modifier = Modifier) {
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Column(
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modifier = modifier
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.background(color = TangemTheme.colors.background.tertiary)
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.fillMaxSize()
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.systemBarsPadding()
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.imePadding(),
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horizontalAlignment = Alignment.CenterHorizontally,
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) {
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AppBar(title = state.screenTitle, onBackClick = state.onCloseClick)
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SearchBar(
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modifier = Modifier.padding(horizontal = TangemTheme.dimens.spacing16),
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state = state.searchBar,
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colors = TangemSearchBarDefaults.secondaryTextFieldColors,
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)
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Content(
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state = state,
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modifier = Modifier.weight(1f),
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)
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}
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}
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@Composable
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private fun AppBar(title: TextReference, onBackClick: () -> Unit) {
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AppBarWithBackButton(
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text = title.resolveReference(),
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onBackClick = onBackClick,
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iconRes = com.tangem.common.ui.R.drawable.ic_back_24,
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modifier = Modifier.height(TangemTheme.dimens.size56),
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)
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}
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@Composable
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private fun Content(state: ChooseTokenUM, modifier: Modifier = Modifier) {
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val nestedScrollConnection = rememberHideKeyboardNestedScrollConnection()
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val lazyListState = rememberLazyListState()
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LazyColumn(
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modifier = modifier
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.fillMaxSize()
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.nestedScroll(nestedScrollConnection),
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horizontalAlignment = Alignment.CenterHorizontally,
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state = lazyListState,
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) {
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assetsTitle()
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walletListItem(state.walletList)
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tokensListItems(
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tokensListData = state.tokensListData,
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isBalanceHidden = state.isBalanceHidden,
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)
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if (state.marketsState != null) {
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item("markets_title_spacer") { SpacerH(height = 20.dp) }
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swapMarketsListItems(state.marketsState)
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}
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}
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if (state.marketsState != null) {
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SetupMarketScrollTracker(state.marketsState, lazyListState)
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}
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}
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@Composable
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private fun SetupMarketScrollTracker(marketsState: SwapMarketState, lazyListState: LazyListState) {
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if (marketsState !is SwapMarketState.Content) return
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val onLoadMore = remember(marketsState) {
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{
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marketsState.loadMore()
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true
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}
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}
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VisibleItemsTracker(
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lazyListState = lazyListState,
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marketState = marketsState,
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)
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InfiniteListHandler(
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listState = lazyListState,
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buffer = LOAD_MORE_BUFFER,
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triggerLoadMoreCheckOnItemsCountChange = true,
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onLoadMore = onLoadMore,
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)
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}
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@Composable
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private fun VisibleItemsTracker(lazyListState: LazyListState, marketState: SwapMarketState.Content) {
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val visibleItems by remember {
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derivedStateOf {
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lazyListState.layoutInfo.visibleItemsInfo.mapNotNull { itemInfo ->
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marketState.items.find { it.getComposeKey() == itemInfo.key }?.id
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}
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}
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}
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LaunchedEffect(visibleItems) {
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marketState.visibleIdsChanged(visibleItems)
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}
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}
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private fun LazyListScope.assetsTitle() {
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item(key = "assets_title") {
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Text(
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text = stringResourceSafe(R.string.swap_your_assets_title),
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style = TangemTheme.typography.h3,
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color = TangemTheme.colors.text.primary1,
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modifier = Modifier
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.fillMaxWidth()
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.padding(
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top = TangemTheme.dimens.spacing20,
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start = TangemTheme.dimens.spacing16,
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end = TangemTheme.dimens.spacing16,
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),
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)
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}
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}
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private fun LazyListScope.walletListItem(walletList: WalletListUM) {
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if (walletList.items.isEmpty()) return
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item("wallet_list") {
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Row(
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modifier = Modifier
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.padding(horizontal = TangemTheme.dimens.spacing16)
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.fillMaxWidth(),
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horizontalArrangement = Arrangement.spacedBy(space = TangemTheme.dimens.spacing8),
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verticalAlignment = Alignment.CenterVertically,
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) {
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walletList.items.forEach { um ->
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val colors = when (um.type) {
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TangemButtonType.Primary -> TangemButtonsDefaults.primaryButtonColors
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else -> TangemButtonsDefaults.secondaryButtonColors
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}
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TangemButton(
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text = um.text?.resolveReference().orEmpty(),
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icon = TangemButtonIconPosition.None,
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size = TangemButtonSize.Action,
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colors = colors,
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showProgress = false,
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onClick = um.onClick,
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enabled = true,
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)
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}
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}
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}
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}
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private fun LazyListScope.tokensListItems(tokensListData: TokenListUMData, isBalanceHidden: Boolean) {
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when (tokensListData) {
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is TokenListUMData.AccountList -> {
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tokensListData.tokensList.forEachIndexed { index, item ->
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portfolioTokensList(
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portfolio = item,
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portfolioIndex = index,
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isBalanceHidden = isBalanceHidden,
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testTag = BuyTokenScreenTestTags.LAZY_LIST_ITEM,
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)
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}
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}
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is TokenListUMData.TokenList -> {
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tokensList(
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items = tokensListData.tokensList,
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isBalanceHidden = isBalanceHidden,
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)
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}
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TokenListUMData.EmptyList -> Unit
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}
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}
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private fun LazyListScope.tokensList(items: ImmutableList<TokensListItemUM>, isBalanceHidden: Boolean) {
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itemsIndexed(
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items = items,
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key = { _, item -> item.id },
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contentType = { _, item -> item::class.java },
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itemContent = { index, item ->
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TokenListItem(
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state = item,
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isBalanceHidden = isBalanceHidden,
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modifier = Modifier
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.roundedShapeItemDecoration(
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currentIndex = index,
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lastIndex = items.lastIndex,
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backgroundColor = TangemTheme.colors.background.primary,
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)
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.testTag(BuyTokenScreenTestTags.LAZY_LIST_ITEM)
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.semantics { lazyListItemPosition = index },
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)
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},
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)
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}
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@Preview
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@Composable
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private fun TokenScreenPreview(@PreviewParameter(ChooseTokenScreenPreviewProvider::class) state: ChooseTokenUM) {
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TangemThemePreview {
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ChooseTokenScreen(
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state = state,
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modifier = Modifier,
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)
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}
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}
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private val searchBar
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get() = SearchBarUM(
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placeholderText = resourceReference(R.string.common_search),
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query = "",
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onQueryChange = {},
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isActive = false,
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onActiveChange = {},
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)
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private val tokenItem
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get() = TokenItemState.Content(
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id = Random.nextInt().toString(),
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iconState = CurrencyIconState.Locked,
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titleState = TokenItemState.TitleState.Content(text = stringReference(value = "Bitcoin")),
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fiatAmountState = TokenItemState.FiatAmountState.Content(text = "12 368,14 \$"),
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subtitle2State = TokenItemState.Subtitle2State.TextContent(text = "0,35853044 BTC"),
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subtitleState = TokenItemState.SubtitleState.CryptoPriceContent(
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price = "34 496,75 \$",
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priceChangePercent = "0,43 %",
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type = PriceChangeType.DOWN,
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),
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onItemClick = {},
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onItemLongClick = {},
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)
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private val tokens
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get() = persistentListOf(
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TokensListItemUM.GroupTitle(id = 111, text = stringReference("Network Bitcoin")),
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TokensListItemUM.Token(state = tokenItem),
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TokensListItemUM.GroupTitle(id = 222, text = stringReference("Network Ethereum")),
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TokensListItemUM.Token(state = tokenItem),
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TokensListItemUM.Token(state = tokenItem),
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TokensListItemUM.Token(state = tokenItem),
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)
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private val accounts
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get() = persistentListOf(
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TokensListItemUM.Portfolio(
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content = PortfolioItemContentUM.Tokens(
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tokens = tokens.filterIsInstance<PortfolioTokensListItemUM>().toPersistentList(),
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),
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isExpanded = false,
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isCollapsable = true,
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tokenItemUM = AccountItemPreviewData.accountItem.copy(iconState = AccountItemPreviewData.accountLetterIcon),
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),
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TokensListItemUM.Portfolio(
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content = PortfolioItemContentUM.Tokens(
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tokens = tokens.filterIsInstance<PortfolioTokensListItemUM>().toPersistentList(),
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),
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isExpanded = true,
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isCollapsable = true,
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tokenItemUM = AccountItemPreviewData.accountItem,
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),
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)
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private val wallets
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get() = persistentListOf(
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TangemButtonUM(
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text = TextReference.Str(value = "Wallet 1"),
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type = TangemButtonType.Primary,
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onClick = {},
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),
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TangemButtonUM(
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text = TextReference.Str(value = "Wallet 2"),
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type = TangemButtonType.Secondary,
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onClick = {},
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),
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TangemButtonUM(
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text = TextReference.Str(value = "Wallet 3"),
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type = TangemButtonType.Secondary,
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onClick = {},
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),
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)
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private class ChooseTokenScreenPreviewProvider : PreviewParameterProvider<ChooseTokenUM> {
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override val values: Sequence<ChooseTokenUM> = sequenceOf(
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ChooseTokenUM(
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screenTitle = stringReference("Choose token"),
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onCloseClick = {},
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walletList = WalletListUM(wallets),
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searchBar = searchBar,
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isBalanceHidden = false,
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isAfterSearch = false,
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tokensListData = TokenListUMData.AccountList(
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tokensList = accounts,
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accounts.size,
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),
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marketsState = SwapSelectTokenPreviewProvider.defaultState.marketsState,
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),
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)
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}
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@ -0,0 +1,23 @@
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package com.tangem.feature.swap.choosetoken.impl.ui
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import com.tangem.core.ui.components.fields.entity.SearchBarUM
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import com.tangem.core.ui.ds.button.TangemButtonUM
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import com.tangem.core.ui.extensions.TextReference
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import com.tangem.feature.swap.models.TokenListUMData
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import com.tangem.feature.swap.models.market.state.SwapMarketState
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import kotlinx.collections.immutable.ImmutableList
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internal data class ChooseTokenUM(
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val screenTitle: TextReference,
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val onCloseClick: () -> Unit,
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val walletList: WalletListUM,
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val searchBar: SearchBarUM,
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val isBalanceHidden: Boolean,
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val isAfterSearch: Boolean,
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val tokensListData: TokenListUMData,
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val marketsState: SwapMarketState?,
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)
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internal data class WalletListUM(
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val items: ImmutableList<TangemButtonUM>,
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)
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