Added Error message dialog

Author: ScottIsAFool

LiveWriterPluginManager/Controls/Messages/ErrorControl.xaml

@@ -0,0 +1,55 @@
+<UserControl x:Class="LiveWriterPluginManager.Controls.Messages.ErrorControl"
+             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+             xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+             xmlns:wpf="http://materialdesigninxaml.net/winfx/xaml/themes"
+             mc:Ignorable="d"
+             d:DesignHeight="300"
+             d:DesignWidth="300"
+             MaxWidth="300">
+    <Border Padding="10">
+        <Grid>
+            <Grid.RowDefinitions>
+                <RowDefinition Height="3*" />
+                <RowDefinition Height="Auto" />
+            </Grid.RowDefinitions>
+            <Grid.ColumnDefinitions>
+                <ColumnDefinition Width="*" />
+                <ColumnDefinition Width="3*" />
+            </Grid.ColumnDefinitions>
+
+            <Border Background="OrangeRed"
+                    Grid.Row="0"
+                    VerticalAlignment="Top"
+                    Height="50"
+                    Width="50"
+                    CornerRadius="60">
+                <Viewbox>
+                    <TextBlock Text="!"
+                               Foreground="White"
+                               HorizontalAlignment="Center"
+                               VerticalAlignment="Center"
+                               FontSize="53.333" />
+                </Viewbox>
+            </Border>
+
+            <TextBlock Grid.Row="0"
+                       Grid.Column="1"
+                       VerticalAlignment="Top"
+                       TextWrapping="Wrap"
+                       Text="{Binding ErrorMessage}"
+                       Margin="10,0,0,0"/>
+
+            <Button Grid.Row="1"
+                    Grid.Column="0"
+                    Grid.ColumnSpan="2"
+                    HorizontalAlignment="Center"
+                    Command="{x:Static wpf:DialogHost.CloseDialogCommand}"
+                    Content="Ok"
+                    IsDefault="True"
+                    Style="{DynamicResource MaterialDesignFlatButton}"
+                    Margin="0,10,0,0"/>
+        </Grid>
+    </Border>
+</UserControl>

LiveWriterPluginManager/Controls/Messages/ErrorControl.xaml.cs

@@ -0,0 +1,26 @@
+using System.Windows;
+
+namespace LiveWriterPluginManager.Controls.Messages
+{
+    /// <summary>
+    /// Interaction logic for ErrorControl.xaml
+    /// </summary>
+    public partial class ErrorControl
+    {
+        public ErrorControl()
+        {
+            InitializeComponent();
+
+            DataContext = this;
+        }
+
+        public static readonly DependencyProperty ErrorMessageProperty = DependencyProperty.Register(
+            "ErrorMessage", typeof (string), typeof (ErrorControl), new PropertyMetadata(default(string)));
+
+        public string ErrorMessage
+        {
+            get { return (string) GetValue(ErrorMessageProperty); }
+            set { SetValue(ErrorMessageProperty, value); }
+        }
+    }
+}

LiveWriterPluginManager/Controls/Messages/QuestionControl.xaml.cs

@@ -1,12 +1,11 @@
 using System.Windows;
-using System.Windows.Controls;
 
 namespace LiveWriterPluginManager.Controls.Messages
 {
     /// <summary>
     /// Interaction logic for QuestionControl.xaml
     /// </summary>
-    public partial class QuestionControl : UserControl
+    public partial class QuestionControl
     {
         public QuestionControl()
         {

LiveWriterPluginManager/LiveWriterPluginManager.csproj

@@ -117,6 +117,9 @@
     <Compile Include="Controls\AddPluginControl.xaml.cs">
       <DependentUpon>AddPluginControl.xaml</DependentUpon>
     </Compile>
+    <Compile Include="Controls\Messages\ErrorControl.xaml.cs">
+      <DependentUpon>ErrorControl.xaml</DependentUpon>
+    </Compile>
     <Compile Include="Controls\Messages\QuestionControl.xaml.cs">
       <DependentUpon>QuestionControl.xaml</DependentUpon>
     </Compile>
@@ -143,6 +146,10 @@
       <SubType>Designer</SubType>
       <Generator>MSBuild:Compile</Generator>
     </Page>
+    <Page Include="Controls\Messages\ErrorControl.xaml">
+      <SubType>Designer</SubType>
+      <Generator>MSBuild:Compile</Generator>
+    </Page>
     <Page Include="Controls\Messages\QuestionControl.xaml">
       <SubType>Designer</SubType>
       <Generator>MSBuild:Compile</Generator>

LiveWriterPluginManager/Services/MessageService.cs

@@ -7,6 +7,7 @@ namespace LiveWriterPluginManager.Services
     public interface IMessageService
     {
         Task<bool> ShowQuestionAsync(string question, string positive, string negative);
+        Task ShowErrorAsync(string errorMessage);
     }
 
     public class MessageService : IMessageService
@@ -22,5 +23,15 @@ public async Task<bool> ShowQuestionAsync(string question, string positive, stri
             var result = await DialogHost.Show(questionControl);
             return (bool)result;
         }
+
+        public Task ShowErrorAsync(string errorMessage)
+        {
+            var errorControl = new ErrorControl
+            {
+                ErrorMessage = errorMessage
+            };
+
+            return DialogHost.Show(errorControl);
+        }
     }
 }

LiveWriterPluginManager/ViewModel/PluginViewModel.cs

@@ -28,9 +28,10 @@ public RelayCommand DeletePluginCommand
                 {
                     if (AppHelper.IsLiveWriterRunning())
                     {
-                        // TODO: Display an error message
+                        await _messageService.ShowErrorAsync("Live Writer is currently running, please close it before trying to remove any plugins");
                         return;
                     }
+
                     var removePlugin = await _messageService.ShowQuestionAsync("Are you sure you wish to remove this plugin?", "Yes", "No, ignore me");
                     if (removePlugin)
                     {