taler-ios

iOS apps for GNU Taler (wallet)
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BalanceCellV.swift (4411B)

      1 /*
      2  * This file is part of GNU Taler, ©2022-26 Taler Systems S.A.
      3  * See LICENSE.md
      4  */
      5 /**
      6  * @author Marc Stibane
      7  */
      8 import SwiftUI
      9 import taler_swift
     10 import SymLog
     11 
     12 struct BalanceCellV: View {
     13     let stack: CallStack
     14     let scope: ScopeInfo
     15     let amount: Amount
     16     let isLegacy: Bool
     17 //    let sizeCategory: ContentSizeCategory
     18 //    let rowAction: () -> Void
     19     @Binding var historyTapped: Int?
     20     let balanceIndex: Int
     21     let balanceDest: TransactionsListView
     22 
     23     @Environment(\.colorScheme) private var colorScheme
     24     @Environment(\.colorSchemeContrast) private var colorSchemeContrast
     25     @AppStorage("minimalistic") var minimalistic: Bool = false
     26 
     27     private func baseURL(_ url: String?) -> String {
     28         if let url {
     29             return url.trimURL
     30         } else {
     31             return String(localized: "Unknown payment service", comment: "exchange url")
     32         }
     33     }
     34 
     35     private func buttonAction() { historyTapped = balanceIndex }
     36 
     37     /// Renders the Balance button. "Balance" leading, amountStr trailing. If it doesn't fit in one row then
     38     /// amount (trailing) goes underneath "Balance" (leading).
     39     var body: some View {
     40 #if PRINT_CHANGES
     41         let _ = Self._printChanges()
     42 //        let _ = symLog.vlog()       // just to get the # to compare it with .onAppear & onDisappear
     43 #endif
     44 #if DEBUG
     45         let debug = 1==0
     46         let red = debug ? Color.red : Color.clear
     47         let green = debug ? Color.green : Color.clear
     48         let blue = debug ? Color.blue : Color.clear
     49         let orange = debug ? Color.orange : Color.clear
     50 #endif
     51         let amountV = AmountV(stack: stack.push("AmountV"),
     52                               scope: scope,
     53                              amount: amount,
     54                          isNegative: nil,           // don't show the + sign
     55                       strikethrough: isLegacy,
     56                               large: true)
     57             .foregroundColor(.primary)
     58         let hLayout = HStack {
     59             amountV
     60                 .frame(maxWidth: .infinity, alignment: .trailing)
     61             Text(Image(systemName: CHEVRON))
     62                 .talerFont(.table)
     63                 .foregroundColor(.secondary)
     64         }
     65         let balanceCell = Group {
     66             if minimalistic {
     67                 hLayout
     68             } else {
     69                 let balanceText = Text("Balance:", comment: "Main view")
     70                     .talerFont(.title2)
     71                     .foregroundColor(WalletColors().secondary(colorScheme, colorSchemeContrast))
     72                 let vLayout = VStack(alignment: .leading, spacing: 0) {
     73                     balanceText
     74                     hLayout
     75                 }
     76 
     77                 if #available(iOS 16.4, *) {
     78                     ViewThatFits(in: .horizontal) {
     79                         HStack(spacing: HSPACING) {
     80                             balanceText
     81                             hLayout
     82                         }
     83                         vLayout
     84                     }
     85                 } else { vLayout } // view for iOS 15
     86             }
     87         }
     88         let actions = Group {
     89             NavLink(balanceIndex, $historyTapped) { balanceDest }
     90         }
     91 
     92         Button(action: buttonAction) {
     93             balanceCell
     94                 .background(actions)
     95                 .accessibilityElement(children: .combine)
     96                 .accessibilityHint(String(localized: "Will go to main transactions list.", comment: "a11y"))
     97 //            .accessibilityLabel(balanceTitleStr + SPACE + amountStr)    // TODO: CurrencyFormatter!
     98         }
     99     }
    100 }
    101 // MARK: -
    102 #if  false
    103 struct BalanceCellV_Previews: PreviewProvider {
    104     @MainActor
    105   struct StateContainer: View {
    106     var body: some View {
    107         let test = Amount(currency: TESTCURRENCY, cent: 123)
    108         let demo = Amount(currency: DEMOCURRENCY, cent: 123456)
    109 
    110         List {
    111             Section {
    112                 BalanceCellV(stack: CallStack("Preview"), currencyName: DEMOCURRENCY, amount: demo,
    113                           sendAction: {}, recvAction: {}, rowAction: {}, balanceDest: nil)
    114             }
    115             BalanceCellV(stack: CallStack("Preview"), currencyName: TESTCURRENCY, amount: test,
    116                       sendAction: {}, recvAction: {}, rowAction: {}, balanceDest: nil)
    117         }
    118     }
    119   }
    120 
    121     static var previews: some View {
    122         StateContainer()
    123 //            .environment(\.sizeCategory, .extraExtraLarge)    Canvas Device Settings
    124     }
    125 }
    126 #endif