taler-ios

iOS apps for GNU Taler (wallet)
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TwoRowButtons.swift (5913B)

      1 /*
      2  * This file is part of GNU Taler, ©2022-25 Taler Systems S.A.
      3  * See LICENSE.md
      4  */
      5 /**
      6  * @author Marc Stibane
      7  */
      8 import SwiftUI
      9 import taler_swift
     10 
     11 let LINELIMIT = 5
     12 
     13 struct TypeButton: View {
     14     let stack: CallStack
     15     let title: String
     16     let a11y: String
     17     var type: TransactionType
     18     let disabled: Bool
     19     let action: NSNotification.Name
     20 
     21     @AppStorage("minimalistic") var minimalistic: Bool = false
     22 
     23     @MainActor
     24     func dismissAndPost() {
     25         dismissTop(stack.push())
     26         NotificationCenter.default.post(name: action, object: nil)                // will trigger NavigationLink
     27     }
     28 
     29     var body: some View {
     30 #if DEBUG
     31         let debug = 1==0
     32         let red = debug ? Color.red : Color.clear
     33         let green = debug ? Color.green : Color.clear
     34         let blue = debug ? Color.blue : Color.clear
     35         let orange = debug ? Color.orange : Color.clear
     36 #endif
     37         let badge = ButtonIconBadge(type: type, foreColor: .accentColor, done: false)
     38                         .talerFont(.title2)
     39         let hLayout = HStack {
     40             badge
     41             Spacer()
     42             Text(title)
     43                 .fixedSize(horizontal: true, vertical: false)
     44             Spacer()
     45         }
     46 #if DEBUG
     47             .border(red)
     48 #endif
     49 
     50         let vLayout = VStack {
     51             let fragments = title.components(separatedBy: "\n")
     52             if fragments.count > 1 {
     53                 Text(fragments[0])
     54                 HStack {
     55                     badge
     56                     Spacer()
     57                     Text(fragments[1])
     58                         .fixedSize(horizontal: true, vertical: false)
     59                     Spacer()
     60                 }
     61 #if DEBUG
     62                 .border(orange)
     63 #endif
     64                 if fragments.count > 2 {
     65                     Text(fragments[2])
     66 //                        .fixedSize(horizontal: true, vertical: false)
     67 #if DEBUG
     68                         .border(green)
     69 #endif
     70                 }
     71             } else {
     72                 hLayout
     73             }
     74         }
     75 #if DEBUG
     76             .border(red)
     77 #endif
     78 
     79         Button(action: dismissAndPost) {
     80             if minimalistic {
     81                 badge
     82             } else {
     83                 if #available(iOS 16.4, *) {
     84                     ViewThatFits(in: .horizontal) {
     85                         hLayout
     86                         vLayout
     87                     }
     88                 } else { vLayout } // view for iOS 15
     89             }
     90         }
     91         .accessibilityLabel(Text(a11y))
     92         .lineLimit(LINELIMIT)
     93         .disabled(disabled)
     94         .buttonStyle(TalerButtonStyle(type: .bordered,
     95                                     dimmed: false,
     96                                   disabled: disabled,
     97                                    aligned: .center))
     98     }
     99 }
    100 // MARK: -
    101 struct TwoRowButtons: View {
    102     let stack: CallStack
    103     let sendTitle: String
    104     var sendType: TransactionType
    105     let sendA11y: String
    106     let recvTitle: String
    107     var recvType: TransactionType
    108     let recvA11y: String
    109     let sendDisabled: Bool   // can't send/deposit if wallet has no coins at all
    110     let sendAction: NSNotification.Name
    111     let recvDisabled: Bool   // can't receive/withdraw if wallet has no payments services
    112     let recvAction: NSNotification.Name
    113 
    114     func sendButton(_ title: String) -> TypeButton {
    115         TypeButton(stack: stack.push(),
    116                    title: title,
    117                     a11y: sendA11y,
    118                     type: sendType,
    119                 disabled: sendDisabled,
    120                   action: sendAction)
    121     }
    122 
    123     func recvButton(_ title: String) -> TypeButton {
    124         TypeButton(stack: stack.push(),
    125                    title: title,
    126                     a11y: recvA11y,
    127                     type: recvType,
    128                 disabled: recvDisabled,
    129                   action: recvAction)
    130     }
    131 
    132     var body: some View {
    133         let hLayout = HStack(spacing: HSPACING) {
    134             // side by side, text in 1+ lines (\t -> \n)
    135             sendButton(sendTitle.tabbed(oneLine: false))
    136             recvButton(recvTitle.tabbed(oneLine: false))
    137         }
    138         let vLayout = VStack {
    139             // one below the other, text in one line (\t -> " ")
    140             sendButton(sendTitle.tabbed(oneLine: true))
    141             recvButton(recvTitle.tabbed(oneLine: true))
    142         }
    143 
    144         if #available(iOS 16.4, *) {
    145             ViewThatFits(in: .horizontal) {
    146                 hLayout
    147 //                    .border(.green)
    148                 vLayout
    149 //                    .border(.red)
    150             }
    151         } else { vLayout } // iOS 15 has no ViewThatFits
    152     }
    153 }
    154 // MARK: -
    155 #if  DEBUG
    156 struct TwoRowButtons_Previews: PreviewProvider {
    157     static var previews: some View {
    158         List {
    159             TwoRowButtons(stack: CallStack("Preview"),
    160                       sendTitle: "Send " + TESTCURRENCY,
    161                        sendType: .peerPushDebit,
    162                        sendA11y: "Send " + TESTCURRENCY,
    163                       recvTitle: "Request " + LONGCURRENCY,
    164                        recvType: .peerPullCredit,
    165                        recvA11y: "Request " + LONGCURRENCY,
    166                    sendDisabled: true,
    167                      sendAction: .SendAction,
    168                    recvDisabled: false,
    169                      recvAction: .RequestAction)
    170                 .listRowSeparator(.hidden)
    171             TwoRowButtons(stack: CallStack("Preview"),
    172                       sendTitle: "Send " + DEMOCURRENCY,
    173                        sendType: .peerPushDebit,
    174                        sendA11y: "Send " + DEMOCURRENCY,
    175                       recvTitle: "Request " + DEMOCURRENCY,
    176                        recvType: .peerPullCredit,
    177                        recvA11y: "Request " + DEMOCURRENCY,
    178                    sendDisabled: true,
    179                      sendAction: .SendAction,
    180                    recvDisabled: false,
    181                      recvAction: .RequestAction)
    182                 .listRowSeparator(.hidden)
    183         }
    184     }
    185 }
    186 #endif