Show vault export warning as popup (#1185)

src/App/Pages/Settings/ExportVaultPage.xaml

@@ -76,19 +76,6 @@
                 <Label
                     Text="{u:I18n ExportVaultMasterPasswordDescription}"
                     StyleClass="box-footer-label, box-footer-label-switch" />
-                <Label
-                    StyleClass="box-footer-label, box-footer-label-switch"
-                    Margin="0, 20">
-                    <Label.FormattedText>
-                        <FormattedString>
-                            <Span
-                                Text="{Binding Converter={StaticResource toUpper}, ConverterParameter={u:I18n Warning}}"
-                                FontAttributes="Bold" />
-                            <Span Text=": " FontAttributes="Bold" />
-                            <Span Text="{Binding ExportWarningMessage}" />
-                        </FormattedString>
-                    </Label.FormattedText>
-                </Label>
                 <StackLayout Spacing="20">
                     <Button Text="{u:I18n ExportVault}"
                             Clicked="ExportVault_Clicked"

src/App/Pages/Settings/ExportVaultPageViewModel.cs

@@ -107,8 +107,20 @@ namespace Bit.App.Pages
             MasterPassword = string.Empty;
 
             var storedKeyHash = await _cryptoService.GetKeyHashAsync();
-            if (storedKeyHash != null && keyHash != null && storedKeyHash == keyHash)
+            if (storedKeyHash == null || keyHash == null || storedKeyHash != keyHash)
             {
+                await _platformUtilsService.ShowDialogAsync(_i18nService.T("InvalidMasterPassword"));
+                return;
+            }
+
+            bool userConfirmedExport = await _platformUtilsService.ShowDialogAsync(ExportWarningMessage,
+                _i18nService.T("ExportVaultConfirmationTitle"), _i18nService.T("ExportVault"), _i18nService.T("Cancel"));
+
+            if (!userConfirmedExport)
+            {
+                return;
+            }
+
             try
             {
                 var data = await _exportService.GetExport(FileFormatOptions[FileFormatSelectedIndex].Key);
@@ -132,11 +144,6 @@ namespace Bit.App.Pages
 #endif
             }
         }
-            else
-            {
-                await _platformUtilsService.ShowDialogAsync(_i18nService.T("InvalidMasterPassword"));
-            }
-        }
 
         public async void SaveFileSelected(string contentUri, string filename)
         {

src/App/Resources/AppResources.Designer.cs

@@ -2827,6 +2827,14 @@ namespace Bit.App.Resources {
             }
         }
 
+        public static string ExportVaultConfirmationTitle
+        {
+            get
+            {
+                return ResourceManager.GetString("ExportVaultConfirmationTitle", resourceCulture);
+            }
+        }
+
         public static string Warning {
             get {
                 return ResourceManager.GetString("Warning", resourceCulture);

src/App/Resources/AppResources.resx

@@ -1605,6 +1605,10 @@
   <data name="EncExportVaultWarning" xml:space="preserve">
     <value>This export encrypts your data using your account's encryption key. If you ever rotate your account's encryption key you should export again since you will not be able to decrypt this export file.</value>
   </data>
+  <data name="ExportVaultConfirmationTitle" xml:space="preserve">
+    <value>Confirm Vault Export</value>
+    <comment>Title for the alert to confirm vault exports.</comment>
+  </data>
   <data name="Warning" xml:space="preserve">
     <value>Warning</value>
   </data>