Fix brave/brave-ios#8345, brave/brave-ios#8425: Add 'Creating Wallet.…

…..' step to onboarding (brave/brave-ios#8509)

* Check for wallet existing before creating Wallet to prevent possible race condition with multi-window.

* Add 'Creating Wallet...' step to onboarding for when asynchronous create wallet / restore wallet functions are setting up the wallet and fetching wallet data files.

* Fix Wallet re-opened before create/restore wallet callback returns.

* Use old api for `ToolbarItemPlacement` as CI is using older Xcode version.

* Address PR comments; Fix backup banner showing until network call to fetch wallet data returns after wallet restore. Banner would only be visible if wallet is dismissed and re-opened prior to callback. Fix wallet dismiss on wallet lock.

* Address PR comment; Fix `CreatingWalletView` not covering fullscreen by overlaying on ScrollView instead of only on contents.

Sources/BraveWallet/Crypto/CryptoView.swift

@@ -236,7 +236,7 @@ public struct CryptoView: View {
         }
       case .unlock:
         UIKitNavigationView {
-          UnlockWalletView(keyringStore: keyringStore)
+          UnlockWalletView(keyringStore: keyringStore, dismissAction: dismissAction)
             .toolbar {
               dismissButtonToolbarContents
             }
@@ -252,7 +252,7 @@ public struct CryptoView: View {
           .zIndex(2)  // Needed or the dismiss animation messes up
         } else {
           UIKitNavigationView {
-            SetupCryptoView(keyringStore: keyringStore)
+            SetupCryptoView(keyringStore: keyringStore, dismissAction: dismissAction)
               .toolbar {
                 ToolbarItemGroup(placement: .destructiveAction) {
                   Button(action: {

Sources/BraveWallet/Crypto/Onboarding/CreateWalletView.swift

@@ -5,40 +5,11 @@
 
 import Foundation
 import SwiftUI
+import BraveUI
 import DesignSystem
 import Strings
 import struct Shared.AppConstants
 
-struct RestorePackage {
-  let recoveryWords: [String]
-  let onRestoreCompleted: (_ status: Bool, _ validPassword: String) -> Void
-  var isLegacyWallet: Bool {
-    recoveryWords.count == .legacyWalletRecoveryPhraseNumber
-  }
-}
-
-struct CreateWalletContainerView: View {
-  @ObservedObject var keyringStore: KeyringStore
-  var restorePackage: RestorePackage?
-
-  init(keyringStore: KeyringStore, restorePackage: RestorePackage? = nil) {
-    self.keyringStore = keyringStore
-    self.restorePackage = restorePackage
-  }
-
-  var body: some View {
-    ScrollView(.vertical) {
-      CreateWalletView(
-        keyringStore: keyringStore,
-        restorePackage: restorePackage
-      )
-      .background(Color(.braveBackground))
-    }
-    .background(Color(.braveBackground).edgesIgnoringSafeArea(.all))
-    .transparentNavigationBar(backButtonTitle: Strings.Wallet.createWalletBackButtonTitle, backButtonDisplayMode: .generic)
-  }
-}
-
 private enum ValidationError: LocalizedError, Equatable {
   case requirementsNotMet
   case inputsDontMatch
@@ -53,35 +24,52 @@ private enum ValidationError: LocalizedError, Equatable {
   }
 }
 
-private struct CreateWalletView: View {
+struct CreateWalletView: View {
   @ObservedObject var keyringStore: KeyringStore
-  var restorePackage: RestorePackage?
+  let setupOption: OnboardingSetupOption
+  let onValidPasswordEntered: ((_ validPassword: String) -> Void)?
+  // Used to dismiss all of Wallet
+  let dismissAction: () -> Void
 
   @State private var password: String = ""
   @State private var repeatedPassword: String = ""
   @State private var validationError: ValidationError?
   @State private var isNewWalletCreated: Bool = false
   @State private var passwordStatus: PasswordStatus = .none
   @State private var isInputsMatch: Bool = false
+  /// If this view is showing `Creating Wallet...` overlay, blocking input fields.
+  /// Using a local flag for the view instead of `keyringStore.isCreatingWallet` so we
+  /// only show `CreatingWalletView` on the `RestoreWalletView` when restoring.
+  @State private var isShowingCreatingWallet: Bool = false
 
   @FocusState private var isFieldFocused: Bool
+
+  init(
+    keyringStore: KeyringStore,
+    setupOption: OnboardingSetupOption,
+    onValidPasswordEntered: ((_ validPassword: String) -> Void)? = nil,
+    dismissAction: @escaping () -> Void
+  ) {
+    self.keyringStore = keyringStore
+    self.setupOption = setupOption
+    self.onValidPasswordEntered = onValidPasswordEntered
+    self.dismissAction = dismissAction
+  }
 
   private func createWallet() {
-    if let restorePackage {
-      // restore wallet with recovery phrases and a new password
-      keyringStore.restoreWallet(
-        words: restorePackage.recoveryWords,
-        password: password,
-        isLegacyBraveWallet: restorePackage.isLegacyWallet
-      ) { success in
-        restorePackage.onRestoreCompleted(success, password)
-      }
-    } else {
+    switch setupOption {
+    case .new:
+      isShowingCreatingWallet = true
       keyringStore.createWallet(password: password) { mnemonic in
+        defer { self.isShowingCreatingWallet = false }
         if let mnemonic, !mnemonic.isEmpty {
           isNewWalletCreated = true
         }
       }
+    case .restore:
+      if isInputsMatch {
+        onValidPasswordEntered?(password)
+      }
     }
   }
 
@@ -127,7 +115,7 @@ private struct CreateWalletView: View {
     }
   }
 
-  func errorLabel(_ error: ValidationError?) -> some View {
+  private func errorLabel(_ error: ValidationError?) -> some View {
     HStack(spacing: 12) {
       Image(braveSystemName: "leo.warning.circle-filled")
         .renderingMode(.template)
@@ -151,65 +139,67 @@ private struct CreateWalletView: View {
   }
 
   var body: some View {
-    VStack(spacing: 16) {
-      VStack {
-        Text(Strings.Wallet.createWalletTitle)
-          .font(.title)
-          .padding(.bottom)
-          .multilineTextAlignment(.center)
-          .foregroundColor(Color(uiColor: WalletV2Design.textPrimary))
-        Text(Strings.Wallet.createWalletSubTitle)
-          .font(.subheadline)
-          .padding(.bottom)
-          .multilineTextAlignment(.center)
-          .foregroundColor(Color(uiColor: WalletV2Design.textSecondary))
-      }
-      VStack(alignment: .leading, spacing: 20) {
-        VStack(spacing: 30) {
-          VStack(alignment: .leading, spacing: 10) {
-            Text(Strings.Wallet.newPasswordPlaceholder)
-              .foregroundColor(Color(uiColor: WalletV2Design.textPrimary))
-            HStack(spacing: 8) {
-              SecureField(Strings.Wallet.newPasswordPlaceholder, text: $password)
-                .textContentType(.newPassword)
-                .focused($isFieldFocused)
-              Spacer()
-              if passwordStatus != .none {
-                passwordStatusView(passwordStatus)
+    ScrollView(.vertical) {
+      VStack(spacing: 16) {
+        VStack {
+          Text(Strings.Wallet.createWalletTitle)
+            .font(.title)
+            .padding(.bottom)
+            .multilineTextAlignment(.center)
+            .foregroundColor(Color(uiColor: WalletV2Design.textPrimary))
+          Text(Strings.Wallet.createWalletSubTitle)
+            .font(.subheadline)
+            .padding(.bottom)
+            .multilineTextAlignment(.center)
+            .foregroundColor(Color(uiColor: WalletV2Design.textSecondary))
+        }
+        VStack(alignment: .leading, spacing: 20) {
+          VStack(spacing: 30) {
+            VStack(alignment: .leading, spacing: 10) {
+              Text(Strings.Wallet.newPasswordPlaceholder)
+                .foregroundColor(Color(uiColor: WalletV2Design.textPrimary))
+              HStack(spacing: 8) {
+                SecureField(Strings.Wallet.newPasswordPlaceholder, text: $password)
+                  .textContentType(.newPassword)
+                  .focused($isFieldFocused)
+                Spacer()
+                if passwordStatus != .none {
+                  passwordStatusView(passwordStatus)
+                }
               }
+              Divider()
             }
-            Divider()
-          }
-          VStack(alignment: .leading, spacing: 12) {
-            Text(Strings.Wallet.repeatedPasswordPlaceholder)
-              .foregroundColor(.primary)
-            HStack(spacing: 8) {
-              SecureField(Strings.Wallet.repeatedPasswordPlaceholder, text: $repeatedPassword, onCommit: createWallet)
-                .textContentType(.newPassword)
-              Spacer()
-              if isInputsMatch {
-                Text("\(Image(braveSystemName: "leo.check.normal")) \(Strings.Wallet.repeatedPasswordMatch)")
-                  .multilineTextAlignment(.trailing)
-                  .font(.footnote)
-                  .foregroundColor(.secondary)
+            VStack(alignment: .leading, spacing: 12) {
+              Text(Strings.Wallet.repeatedPasswordPlaceholder)
+                .foregroundColor(.primary)
+              HStack(spacing: 8) {
+                SecureField(Strings.Wallet.repeatedPasswordPlaceholder, text: $repeatedPassword, onCommit: createWallet)
+                  .textContentType(.newPassword)
+                Spacer()
+                if isInputsMatch {
+                  Text("\(Image(braveSystemName: "leo.check.normal")) \(Strings.Wallet.repeatedPasswordMatch)")
+                    .multilineTextAlignment(.trailing)
+                    .font(.footnote)
+                    .foregroundColor(.secondary)
+                }
               }
+              Divider()
             }
-            Divider()
           }
+          .font(.subheadline)
+          errorLabel(validationError)
         }
-        .font(.subheadline)
-        errorLabel(validationError)
-      }
-      Button(action: createWallet) {
-        Text(Strings.Wallet.continueButtonTitle)
-          .frame(maxWidth: .infinity)
+        Button(action: createWallet) {
+          Text(Strings.Wallet.continueButtonTitle)
+            .frame(maxWidth: .infinity)
+        }
+        .buttonStyle(BraveFilledButtonStyle(size: .large))
+        .disabled(isContinueDisabled)
+        .padding(.top, 60)
       }
-      .buttonStyle(BraveFilledButtonStyle(size: .large))
-      .disabled(isContinueDisabled)
-      .padding(.top, 60)
+      .padding(.horizontal, 20)
+      .padding(.bottom, 20)
     }
-    .padding(.horizontal, 20)
-    .padding(.bottom, 20)
     .background(Color(.braveBackground).edgesIgnoringSafeArea(.all))
     .background(
       NavigationLink(
@@ -224,20 +214,66 @@ private struct CreateWalletView: View {
     )
     .onChange(of: password, perform: handleInputChange)
     .onChange(of: repeatedPassword, perform: handleInputChange)
+    .navigationBarBackButtonHidden(isShowingCreatingWallet)
+    .frame(maxWidth: .infinity, maxHeight: .infinity)
+    .overlay {
+      if isShowingCreatingWallet {
+        CreatingWalletView()
+          .ignoresSafeArea()
+          .frame(maxWidth: .infinity, maxHeight: .infinity)
+      }
+    }
+    .toolbar(content: {
+      ToolbarItem(placement: .navigationBarLeading) {
+        if isShowingCreatingWallet {
+          Button(action: dismissAction) { // dismiss all of wallet
+            Image("wallet-dismiss", bundle: .module)
+              .renderingMode(.template)
+              .foregroundColor(Color(.braveBlurpleTint))
+          }
+        }
+      }
+    })
     .onAppear {
       isFieldFocused = true
     }
+    .transparentNavigationBar(
+      backButtonTitle: Strings.Wallet.createWalletBackButtonTitle,
+      backButtonDisplayMode: .generic
+    )
   }
 }
 
 #if DEBUG
 struct CreateWalletView_Previews: PreviewProvider {
   static var previews: some View {
     NavigationView {
-      CreateWalletContainerView(keyringStore: .previewStore)
+      CreateWalletView(
+        keyringStore: .previewStore,
+        setupOption: .new,
+        dismissAction: {}
+      )
     }
     .previewLayout(.sizeThatFits)
     .previewColorSchemes()
   }
 }
 #endif
+
+/// View shown as an overlay over `CreateWalletView` or `RestoreWalletView`
+/// when waiting for Wallet to be created & wallet data files downloaded.
+struct CreatingWalletView: View {
+
+  var body: some View {
+    VStack(spacing: 24) {
+      Spacer()
+      ProgressView()
+        .progressViewStyle(.braveCircular(size: .normal, tint: .braveBlurpleTint))
+      Text(Strings.Wallet.creatingWallet)
+        .font(.title)
+      Spacer()
+    }
+    .frame(maxWidth: .infinity, maxHeight: .infinity)
+    .background(Color(braveSystemName: .containerBackground))
+  }
+}

Sources/BraveWallet/Crypto/Onboarding/LegalView.swift

@@ -8,18 +8,15 @@ import DesignSystem
 
 struct LegalView: View {
   @ObservedObject var keyringStore: KeyringStore
-  var setupOption: SetupOption
+  let setupOption: OnboardingSetupOption
+  // Used to dismiss all of Wallet
+  let dismissAction: () -> Void
 
   @State private var isResponsibilityCheckboxChecked: Bool = false
   @State private var isTermsCheckboxChecked: Bool = false
   @State private var isShowingCreateNewWallet: Bool = false
   @State private var isShowingRestoreExistedWallet: Bool = false
 
-  enum SetupOption {
-    case new
-    case restore
-  }
-
   private var isContinueDisabled: Bool {
     !isResponsibilityCheckboxChecked || !isTermsCheckboxChecked
   }
@@ -79,7 +76,11 @@ struct LegalView: View {
     .padding()
     .background(
       NavigationLink(
-        destination: CreateWalletContainerView(keyringStore: keyringStore),
+        destination: CreateWalletView(
+          keyringStore: keyringStore,
+          setupOption: setupOption,
+          dismissAction: dismissAction
+        ),
         isActive: $isShowingCreateNewWallet,
         label: {
           EmptyView()
@@ -88,7 +89,10 @@ struct LegalView: View {
     )
     .background(
       NavigationLink(
-        destination: RestoreWalletContainerView(keyringStore: keyringStore),
+        destination: RestoreWalletView(
+          keyringStore: keyringStore,
+          dismissAction: dismissAction
+        ),
         isActive: $isShowingRestoreExistedWallet,
         label: {
           EmptyView()
@@ -118,7 +122,11 @@ struct LegalCheckbox: View {
 #if DEBUG
 struct LegalView_Previews: PreviewProvider {
   static var previews: some View {
-    LegalView(keyringStore: .previewStore, setupOption: .new)
+    LegalView(
+      keyringStore: .previewStore,
+      setupOption: .new,
+      dismissAction: {}
+    )
   }
 }
 #endif