Add ShowErrorMessage setting

Author: Jack251970

Plugins/Flow.Launcher.Plugin.Calculator/Languages/en.xaml

@@ -15,4 +15,5 @@
     <system:String x:Key="flowlauncher_plugin_calculator_decimal_separator_dot">Dot (.)</system:String>
     <system:String x:Key="flowlauncher_plugin_calculator_max_decimal_places">Max. decimal places</system:String>
     <system:String x:Key="flowlauncher_plugin_calculator_failed_to_copy">Copy failed, please try later</system:String>
+    <system:String x:Key="flowlauncher_plugin_calculator_show_error_message">Show error message when calculation fails</system:String>
 </ResourceDictionary>

Plugins/Flow.Launcher.Plugin.Calculator/Main.cs

@@ -79,6 +79,7 @@ public List<Result> Query(Query query)
 
                 if (result == null || string.IsNullOrEmpty(result.ToString()))
                 {
+                    if (!_settings.ShowErrorMessage) return EmptyResults;
                     return new List<Result>
                     {
                         new Result
@@ -90,10 +91,14 @@ public List<Result> Query(Query query)
                 }
 
                 if (result.ToString() == "NaN")
+                {
                     result = Localize.flowlauncher_plugin_calculator_not_a_number();
+                }
 
                 if (result is Function)
+                {
                     result = Localize.flowlauncher_plugin_calculator_expression_not_complete();
+                }
 
                 if (!string.IsNullOrEmpty(result.ToString()))
                 {
@@ -129,6 +134,7 @@ public List<Result> Query(Query query)
             catch (Exception)
             {
                 // Mages engine can throw various exceptions, for simplicity we catch them all and show a generic message.
+                if (!_settings.ShowErrorMessage) return EmptyResults;
                 return new List<Result>
                 {
                     new Result

Plugins/Flow.Launcher.Plugin.Calculator/Settings.cs

@@ -4,6 +4,9 @@ namespace Flow.Launcher.Plugin.Calculator
     public class Settings
     {
         public DecimalSeparator DecimalSeparator { get; set; } = DecimalSeparator.UseSystemLocale;
-        public int MaxDecimalPlaces { get; set; } = 10;      
+
+        public int MaxDecimalPlaces { get; set; } = 10;
+
+        public bool ShowErrorMessage { get; set; } = false;
     }
 }

Plugins/Flow.Launcher.Plugin.Calculator/Views/CalculatorSettings.xaml

@@ -15,6 +15,7 @@
         <Grid.RowDefinitions>
             <RowDefinition Height="auto" />
             <RowDefinition Height="auto" />
+            <RowDefinition Height="auto" />
         </Grid.RowDefinitions>
         <Grid.ColumnDefinitions>
             <ColumnDefinition Width="Auto" />
@@ -58,5 +59,14 @@
             ItemsSource="{Binding MaxDecimalPlacesRange}"
             SelectedItem="{Binding Settings.MaxDecimalPlaces}" />
 
+        <CheckBox
+            Grid.Row="2"
+            Grid.Column="0"
+            Grid.ColumnSpan="2"
+            Margin="{StaticResource SettingPanelItemTopBottomMargin}"
+            HorizontalAlignment="Left"
+            VerticalAlignment="Center"
+            Content="{DynamicResource flowlauncher_plugin_calculator_show_error_message}"
+            IsChecked="{Binding Settings.ShowErrorMessage, Mode=TwoWay}" />
     </Grid>
 </UserControl>