DYN-8303: Enable deferred node load

src/DynamoCoreWpf/Controls/NotificationsControl.xaml

@@ -1,4 +1,4 @@
-<UserControl x:Class="Dynamo.Wpf.Controls.NotificationsControl"
+<UserControl x:Class="Dynamo.Wpf.Controls.NotificationsControl"
              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"
@@ -35,6 +35,7 @@
             <core:NotificationLevelToColorConverter x:Key="NotificationLevelToColorConverter"></core:NotificationLevelToColorConverter>
             <core:ZeroToVisibilityCollapsedConverter x:Key="ZeroToVisibilityCollapsedConverter" />
             <converters:EmptyStringToHiddenConverter x:Key="EmptyStringToHiddenConverter" />
+            <converters:BoolToVisibilityConverter x:Key="BoolToVisibilityConverter" />
             <converters:LinterIssueCountToVisibilityConverter x:Key="LinterIssueCountToVisibilityConverter" />
             <ResourceDictionary.MergedDictionaries>
                 <ui:SharedResourceDictionary Source="{x:Static ui:SharedDictionaryManager.DynamoConvertersDictionaryUri}" />
@@ -45,6 +46,7 @@
 
     <Grid HorizontalAlignment="Stretch" VerticalAlignment="Center">
         <Grid.ColumnDefinitions>
+            <ColumnDefinition Width="Auto" />
             <ColumnDefinition Width="Auto" />
             <ColumnDefinition Width="Auto" />
             <ColumnDefinition Width="*" />
@@ -128,8 +130,51 @@
             </ItemsControl.ItemsPanel>
         </ItemsControl>
 
+
+        <Border Style="{StaticResource FooterNotificationItemStyle}" Grid.Column="2"
+                Visibility="{Binding HomeSpaceViewModel.NodesLoading, Converter={StaticResource BoolToVisibilityConverter}}">
+            <StackPanel
+                Orientation="Horizontal" Margin="5,0"
+                VerticalAlignment="Center">
+                <Image Name="downloadingIcon"
+                   Width="16"
+                   Height="16"
+                   VerticalAlignment="Center"
+                   RenderTransformOrigin="0.5,0.5"
+                   Source="/DynamoCoreWpf;component/UI/Images/Progress circle.png"
+                   Visibility="Visible">
+                    <Image.RenderTransform>
+                        <RotateTransform x:Name="AnimatedRotateTransform" Angle="0" />
+                    </Image.RenderTransform>
+                    <Image.Triggers>
+                        <EventTrigger RoutedEvent="Window.Loaded">
+                            <BeginStoryboard>
+                                <Storyboard>
+                                    <DoubleAnimation By="10"
+                                     FillBehavior="Stop"
+                                     RepeatBehavior="Forever"
+                                     Storyboard.TargetName="AnimatedRotateTransform"
+                                     Storyboard.TargetProperty="Angle"
+                                     To="360"
+                                     Duration="0:0:0.5" />
+                                </Storyboard>
+                            </BeginStoryboard>
+                        </EventTrigger>
+                    </Image.Triggers>
+                </Image>
+                <TextBlock Margin="10,0"
+                        Foreground="White" VerticalAlignment="Center">
+                    <Run Text="Loading nodes: " />
+                    <Run Text="{Binding HomeSpaceViewModel.LoadedNodesCount, Mode=OneWay}" />
+                    <Run Text="/" />
+                    <Run Text="{Binding HomeSpaceViewModel.Nodes.Count, Mode=OneWay}" />
+                </TextBlock>
+            </StackPanel>
+        </Border>
+
+
         <StackPanel Orientation="Horizontal"
-                    Grid.Column="2"
+                    Grid.Column="3"
                     HorizontalAlignment="Right"
                     VerticalAlignment="Center"
                     Margin="30,0"
@@ -156,4 +201,4 @@
         </StackPanel>
 
     </Grid>
-</UserControl>
+</UserControl>

src/DynamoCoreWpf/DynamoCoreWpf.csproj

@@ -1,4 +1,4 @@
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
     <UILib>true</UILib>
   </PropertyGroup>
@@ -414,6 +414,7 @@
     <EmbeddedResource Include="Properties\Resources.ru-RU.resx" />
     <EmbeddedResource Include="Properties\Resources.zh-CN.resx" />
     <EmbeddedResource Include="Properties\Resources.zh-TW.resx" />
+    <EmbeddedResource Include="NodeCacheImages.resx" />
   </ItemGroup>
 
   <ItemGroup>