taler-ios

iOS apps for GNU Taler (wallet)
Log | Files | Refs | README | LICENSE

AmountV.swift (4905B)

      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 
     11 struct AmountV: View {
     12     let stack: CallStack?
     13     let scope: ScopeInfo?
     14     let amount: Amount
     15     let isNegative: Bool?       // show a "-" or "+" before the amount, nothing for nil
     16     let useISO: Bool
     17     let strikethrough: Bool
     18     let large: Bool             // set to false for QR or IBAN
     19     let xLarge: Bool
     20     let a11yDecSep: String?
     21     
     22     @EnvironmentObject private var controller: Controller
     23 
     24     @State private var currencyInfo: CurrencyInfo?
     25     @State private var showBanknotes = false
     26 
     27     private var dismissAlertButton: some View {
     28         Button("Cancel", role: .cancel) {
     29             showBanknotes = false
     30         }
     31     }
     32 
     33     private func currencyTickerChanged() async {
     34         if let scope {
     35 //            print("currencyTickerChanged: \(amount.readableDescription)")
     36             currencyInfo = controller.info(for: scope)                          // might be nil!
     37         }
     38     }
     39 
     40     private func amountStr(_ currencyInfo : CurrencyInfo?) -> (String, String) {
     41         let dontShow = (isNegative == nil)
     42         let showSign: Bool = isNegative ?? false
     43         let readable = amount.readableDescription
     44         let amountFormatted: (String, String)
     45         if let currencyInfo {
     46             amountFormatted = amount.formatted(currencyInfo, isNegative: false,
     47                                                useISO: useISO, a11yDecSep: a11yDecSep)
     48         } else {
     49             amountFormatted = (readable, readable)
     50         }
     51         let amountStr = dontShow ?      amountFormatted.0
     52                       : showSign ? "- \(amountFormatted.0)"
     53                                  : "+ \(amountFormatted.0)"
     54         let amountA11y = dontShow ?      amountFormatted.1
     55                        : showSign ? "- \(amountFormatted.1)"
     56                                   : "+ \(amountFormatted.1)"
     57 
     58         return (amountStr, amountA11y)
     59     }
     60 
     61     var body: some View {
     62         let amountTuple = amountStr(currencyInfo)
     63         Text(amountTuple.0)
     64             .strikethrough(strikethrough, color: WalletColors().attention)
     65             .multilineTextAlignment(.center)
     66             .talerFont(xLarge ? .largeTitle
     67                       : large ? .title : .title2)
     68 //            .fontWeight(large ? .medium : .regular)       // @available(iOS 16.0, *)
     69             .monospacedDigit()
     70             .accessibilityLabel(amountTuple.1)     // TODO: locale.leadingCurrencySymbol
     71             .privacySensitive()
     72             .layoutPriority(10)
     73             .task(id: controller.currencyTicker) { await currencyTickerChanged() }
     74 //            .onLongPressGesture(minimumDuration: 0.3) {
     75 //                showValue = true
     76 //            }
     77 //            .alert("Bla",
     78 //                   isPresented: $showBanknotes,
     79 //                   actions: {   dismissAlertButton },
     80 //                   message: {   Text("Blub") })
     81     }
     82 }
     83 extension AmountV {
     84     init(_ scope: ScopeInfo?, _ amount: Amount) {
     85         self.init(scope, amount, isNegative: false)
     86     }
     87     init(_ scope: ScopeInfo?, _ amount: Amount, isNegative: Bool?) {
     88         self.init(scope, amount, isNegative: isNegative, strikethrough: false)
     89     }
     90     init(_ currency: String, cent: UInt64, isNegative: Bool?) {
     91         self.stack = nil
     92         self.scope = nil
     93         self.amount = Amount(currency: currency , cent: cent)
     94         self.isNegative = isNegative
     95         self.useISO = false
     96         self.strikethrough = false
     97         self.large = true
     98         self.xLarge = false
     99         self.a11yDecSep = nil
    100     }
    101     init(_ currency: String, amount: Amount, isNegative: Bool?) {   // for OIM
    102         self.stack = nil
    103         self.scope = nil
    104         self.amount = Amount(currency: currency , integer: amount.integer, fraction: amount.fraction)
    105         self.isNegative = isNegative
    106         self.useISO = false
    107         self.strikethrough = false
    108         self.large = true
    109         self.xLarge = true
    110         self.a11yDecSep = nil
    111     }
    112     init(_ scope: ScopeInfo?, _ amount: Amount, isNegative: Bool?, strikethrough: Bool) {
    113         self.stack = nil
    114         self.scope = scope
    115         self.amount = amount
    116         self.isNegative = isNegative
    117         self.useISO = false
    118         self.strikethrough = strikethrough
    119         self.large = false
    120         self.xLarge = false
    121         self.a11yDecSep = nil
    122     }
    123     init(stack: CallStack?, scope: ScopeInfo?, amount: Amount, isNegative: Bool? = nil,
    124          strikethrough: Bool = false, large: Bool = false) {
    125         self.stack = stack
    126         self.scope = scope
    127         self.amount = amount
    128         self.isNegative = isNegative
    129         self.useISO = false
    130         self.strikethrough = strikethrough
    131         self.large = false
    132         self.xLarge = false
    133         self.a11yDecSep = nil
    134     }
    135 }
    136 // MARK: -
    137 //#Preview {
    138 //    AmountV()
    139 //}