fix: require calculator input callbacks

Author: ovitrif

Bitkit/Components/Widgets/CalculatorWidget.swift

@@ -345,8 +345,8 @@ struct CalculatorWidget: View {
 
 struct CalculatorWidgetWideContent: View {
     let values: CalculatorWidgetValues
-    var activeInput: CalculatorMoneyType?
-    var onSelectInput: ((CalculatorMoneyType) -> Void)?
+    let activeInput: CalculatorMoneyType?
+    let onSelectInput: (CalculatorMoneyType) -> Void
 
     var body: some View {
         VStack(spacing: 16) {
@@ -361,7 +361,7 @@ struct CalculatorWidgetWideContent: View {
                 isActive: activeInput == .bitcoin,
                 accessibilityIdentifier: "CalculatorBtcInput"
             ) {
-                onSelectInput?(.bitcoin)
+                onSelectInput(.bitcoin)
             }
 
             CalculatorWidgetRow(
@@ -375,7 +375,7 @@ struct CalculatorWidgetWideContent: View {
                 isActive: activeInput == .fiat,
                 accessibilityIdentifier: "CalculatorFiatInput"
             ) {
-                onSelectInput?(.fiat)
+                onSelectInput(.fiat)
             }
         }
     }

Bitkit/Views/Widgets/CalculatorWidgetPreviewView.swift

@@ -8,6 +8,7 @@ struct CalculatorWidgetPreviewView: View {
 
     // TODO: revert to 0 to re-enable the compact widget preview
     @State private var carouselPage: Int = 1
+    @State private var previewActiveInput: CalculatorMoneyType?
     @State private var showDeleteAlert = false
     @State private var values = CalculatorWidgetValues()
 
@@ -60,6 +61,9 @@ struct CalculatorWidgetPreviewView: View {
         .onChange(of: currency.rates) {
             hydrateValues()
         }
+        .onDisappear {
+            previewActiveInput = nil
+        }
         .alert(
             t("widgets__delete__title"),
             isPresented: $showDeleteAlert,
@@ -96,11 +100,15 @@ struct CalculatorWidgetPreviewView: View {
     private var widePage: some View {
         VStack {
             Spacer(minLength: 0)
-            CalculatorWidgetWideContent(values: values)
-                .padding(16)
-                .background(Color.gray6)
-                .cornerRadius(16)
-                .frame(maxWidth: .infinity)
+            CalculatorWidgetWideContent(
+                values: values,
+                activeInput: previewActiveInput,
+                onSelectInput: selectInput
+            )
+            .padding(16)
+            .background(Color.gray6)
+            .cornerRadius(16)
+            .frame(maxWidth: .infinity)
             Spacer(minLength: 0)
         }
     }
@@ -192,6 +200,10 @@ struct CalculatorWidgetPreviewView: View {
         return CalculatorWidgetFormatter.fiatRawValue(from: converted.value)
     }
 
+    private func selectInput(_ input: CalculatorMoneyType) {
+        previewActiveInput = input
+    }
+
     private func onSave() {
         widgets.saveWidget(widgetType)
         navigation.reset()