fleshing out snackbar message queue - API coming along...got to manage edge cases around mouse overs and dialogs

Author: ButchersBoy

MainDemo.Wpf/App.xaml

@@ -1,7 +1,7 @@
 <Application x:Class="MaterialDesignColors.WpfExample.App"
              xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
              xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
-             StartupUri="MainWindow.xaml">
+             StartupUri="ProvingGround.xaml">
     <Application.Resources>
         <ResourceDictionary>
             <ResourceDictionary.MergedDictionaries>

MainDemo.Wpf/ProvingGround.xaml

@@ -33,15 +33,46 @@
     </UserControl.Resources>
 
     <Grid HorizontalAlignment="Left">
-        <StackPanel>
-            <provingGroundStuff:MeasuringTextBox>Hello World</provingGroundStuff:MeasuringTextBox>
-            <provingGroundStuff:MeasuringTextBox>Hello World</provingGroundStuff:MeasuringTextBox>
-            <provingGroundStuff:MeasuringTextBox>Hello World</provingGroundStuff:MeasuringTextBox>
-            <provingGroundStuff:MeasuringTextBox>Hello World</provingGroundStuff:MeasuringTextBox>
-            <provingGroundStuff:MeasuringTextBox>Hello World</provingGroundStuff:MeasuringTextBox>
-            <provingGroundStuff:MeasuringTextBox materialDesign:HintAssist.Hint="Float">Hello World</provingGroundStuff:MeasuringTextBox>
-            <provingGroundStuff:MeasuringTextBox materialDesign:HintAssist.IsFloating="True" materialDesign:HintAssist.Hint="Float">Hello World</provingGroundStuff:MeasuringTextBox>
+        <Grid.RowDefinitions>
+            <RowDefinition />
+            <RowDefinition />
+        </Grid.RowDefinitions>
+        <Grid.ColumnDefinitions>
+            <ColumnDefinition />
+            <ColumnDefinition />
+            <ColumnDefinition />
+        </Grid.ColumnDefinitions>
+        
+        <materialDesign:Snackbar2 Message="hello 1" 
+                                  IsActive="False"
+                                  x:Name="SnackbarOne" />
+        
+        <ToggleButton IsChecked="{Binding ElementName=SnackbarOne, Path=IsActive, Mode=TwoWay}"
+                      Grid.Row="1" Grid.Column="0" />
+
+        <materialDesign:Snackbar2 IsActive="True"
+                                  Grid.Row="0" 
+                                  Grid.Column="1" 
+                                  x:Name="SnackbarTwo" >
+            <materialDesign:SnackbarMessage Content="Hello 2" ActionContent="UNDO" />
+        </materialDesign:Snackbar2>
+        
+        <ToggleButton IsChecked="{Binding ElementName=SnackbarTwo, Path=IsActive, Mode=TwoWay}"
+                      Grid.Row="1" Grid.Column="1" />
+
+
+        <materialDesign:Snackbar2 MessageQueue="{materialDesign:MessageQueue}"
+                                  Grid.Row="0" 
+                                  Grid.Column="2"        
+                                  x:Name="SnackbarThree" />
+        <StackPanel Orientation="Horizontal"
+                    Grid.Row="1" 
+                    Grid.Column="2"                    >
+            <TextBlock>Message: </TextBlock>
+            <TextBlock x:Name="MessageTextBox">Hello World</TextBlock>
+            <Button Click="SnackBar3_OnClick">Send</Button>
         </StackPanel>
+
     </Grid>
 
 </UserControl>

MainDemo.Wpf/ProvingGround.xaml.cs

@@ -54,6 +54,11 @@ private void ButtonBase_OnClick(object sender, RoutedEventArgs e)
         {
             new PaletteHelper().QueryPalette();
         }
+
+        private void SnackBar3_OnClick(object sender, RoutedEventArgs e)
+        {
+            SnackbarThree.MessageQueue.Enqueue(MessageTextBox.Text);
+        }
     }
 
     public class ProvingGroundViewModel : INotifyPropertyChanged

MaterialDesignThemes.Wpf/Converters/SnackbarMessageTypeConverter.cs

@@ -0,0 +1,32 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Globalization;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MaterialDesignThemes.Wpf.Converters
+{
+    public class SnackbarMessageTypeConverter : TypeConverter
+    {
+        public override bool CanConvertFrom(ITypeDescriptorContext context, Type sourceType)
+        {
+            return sourceType == typeof(string) || base.CanConvertFrom(context, sourceType);
+        }
+
+        public override object ConvertFrom(ITypeDescriptorContext context, CultureInfo culture, object value)
+        {
+            var s = value as string;
+            if (s != null)
+            {
+                return new SnackbarMessage
+                {
+                    Content = s
+                };
+            }
+
+            return base.ConvertFrom(context, culture, value);
+        }
+    }
+}

MaterialDesignThemes.Wpf/ISnackbarMessageQueue.cs

@@ -0,0 +1,16 @@
+using System;
+
+namespace MaterialDesignThemes.Wpf
+{
+    public interface ISnackbarMessageQueue
+    {
+        void Enqueue(object content);
+
+        void Enqueue(object content, object actionContent, Action actionHandler);
+
+        void Enqueue<TArgument>(object content, object actionContent, Action<TArgument> actionHandler, TArgument actionArgument);
+
+        //TODO consider additional variants of Enqueue:
+        // ShowAsync(. . .)
+    }
+}

MaterialDesignThemes.Wpf/MaterialDesignThemes.Wpf.csproj

@@ -271,6 +271,7 @@
     <Compile Include="Converters\PointValueConverter.cs" />
     <Compile Include="Converters\ShadowConverter.cs" />
     <Compile Include="Converters\SizeToRectConverter.cs" />
+    <Compile Include="Converters\SnackbarMessageTypeConverter.cs" />
     <Compile Include="Converters\TimeToVisibilityConverter.cs" />
     <Compile Include="CustomPopupPlacementCallbackHelper.cs" />
     <Compile Include="DataGridAssist.cs" />
@@ -292,9 +293,14 @@
     <Compile Include="HintProxyFabric.cs" />
     <Compile Include="Icon.cs" />
     <Compile Include="IconType.cs" />
+    <Compile Include="ISnackbarMessageQueue.cs" />
     <Compile Include="ListBoxAssist.cs" />
+    <Compile Include="MessageQueueExtension.cs" />
     <Compile Include="Palette.cs" />
     <Compile Include="Snackbar.cs" />
+    <Compile Include="SnackbarMessageEventArgs.cs" />
+    <Compile Include="SnackbarMessageQueue.cs" />
+    <Compile Include="SnackbarMessageQueueItem.cs" />
     <Compile Include="Transitions\CircleWipe.cs" />
     <Compile Include="IHintProxy.cs" />
     <Compile Include="Transitions\IndexedItemOffsetMultiplierExtension.cs" />

MaterialDesignThemes.Wpf/MessageQueueExtension.cs

@@ -0,0 +1,17 @@
+using System;
+using System.Windows.Markup;
+
+namespace MaterialDesignThemes.Wpf
+{
+    /// <summary>
+    /// Provides shorthand to initialise a new <see cref="SnackbarMessageQueue"/> for a <see cref="Snackbar2"/>.
+    /// </summary>
+    [MarkupExtensionReturnType(typeof(SnackbarMessageQueue))]    
+    public class MessageQueueExtension : MarkupExtension
+    {        
+        public override object ProvideValue(IServiceProvider serviceProvider)
+        {            
+            return new SnackbarMessageQueue();
+        }
+    }
+}