From fa68375a18c332141a78b9022aa8243749ad8f96 Mon Sep 17 00:00:00 2001
From: Blake Burkhart <bburky@bburky.com>
Date: Sun, 12 Sep 2021 21:31:10 -0500
Subject: [PATCH] Use gong-wpf-dragdrop for drag and drop reordering

---
 Playlist.cs       | 23 ++++++++++++++++-------
 Playlist.csproj   |  3 +++
 PlaylistView.xaml | 29 ++++++++++++++---------------
 packages.config   |  1 +
 4 files changed, 34 insertions(+), 22 deletions(-)

diff --git a/Playlist.cs b/Playlist.cs
index 7201cd7..0b448b1 100644
--- a/Playlist.cs
+++ b/Playlist.cs
@@ -11,6 +11,7 @@
 using System.Text;
 using System.Threading.Tasks;
 using System.Windows.Controls;
+using System.Windows.Media;
 
 namespace Playlist
 {
@@ -30,22 +31,26 @@ public override IEnumerable<SidebarItem> GetSidebarItems()
             {
                 Title = "Playlist",
                 Type = SiderbarItemType.View,
-                Icon = Path.Combine(Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location), "icon.png"),
+                Icon = new TextBlock
+                {
+                    Text = "\ueca6", // Circled play button
+                    FontFamily = ResourceProvider.GetResource("FontIcoFont") as FontFamily,
+                },
                 Opened = () => { return playlistView; }
             };
         }
         public override IEnumerable<GameMenuItem> GetGameMenuItems(GetGameMenuItemsArgs args)
         {
             yield return new GameMenuItem
+            {
+                Description = "Add to Playlist",
+                Action = (itemArgs) =>
                 {
-                    Description = "Add to playlist",
-                    Action = (itemArgs) =>
+                    foreach (Game game in args.Games)
                     {
-                        foreach (Game game in args.Games)
-                        {
-                            playlistViewModel.PlaylistGames.AddMissing(game);
-                        }
+                        playlistViewModel.PlaylistGames.AddMissing(game);
                     }
+                }
             };
         }
 
@@ -53,6 +58,10 @@ public override IEnumerable<GameMenuItem> GetGameMenuItems(GetGameMenuItemsArgs
 
         public Playlist(IPlayniteAPI api) : base(api)
         {
+            // Ensure the library loaded now, relative to the extension DLL.
+            // If the XAML trys to load it later it will incorrectly load it relative to Playnite's executable
+            Assembly.Load("GongSolutions.WPF.DragDrop");
+
             playlistGames = new List<Game>();
             settings = new PlaylistSettingsViewModel(this);
             playniteApi = api;
diff --git a/Playlist.csproj b/Playlist.csproj
index e62291d..7371862 100644
--- a/Playlist.csproj
+++ b/Playlist.csproj
@@ -31,6 +31,9 @@
     <WarningLevel>4</WarningLevel>
   </PropertyGroup>
   <ItemGroup>
+    <Reference Include="GongSolutions.WPF.DragDrop, Version=2.0.0.0, Culture=neutral, PublicKeyToken=91f1945125b7a587, processorArchitecture=MSIL">
+      <HintPath>packages\gong-wpf-dragdrop.2.4.1\lib\net462\GongSolutions.WPF.DragDrop.dll</HintPath>
+    </Reference>
     <Reference Include="Playnite.SDK, Version=6.0.0.0, Culture=neutral, processorArchitecture=MSIL">
       <HintPath>packages\PlayniteSDK.6.0.0-preview3\lib\net462\Playnite.SDK.dll</HintPath>
     </Reference>
diff --git a/PlaylistView.xaml b/PlaylistView.xaml
index 24d04c6..7b0ae18 100644
--- a/PlaylistView.xaml
+++ b/PlaylistView.xaml
@@ -3,6 +3,7 @@
              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:dd="urn:gong-wpf-dragdrop"
              mc:Ignorable="d"
              d:DesignHeight="400" d:DesignWidth="600">
 
@@ -10,46 +11,44 @@
         <Style TargetType="TextBlock" BasedOn="{StaticResource BaseTextBlockStyle}" />
     </UserControl.Resources>
  
-
-
     <DockPanel>
         <StackPanel Orientation="Horizontal" Margin="10,10,0,0" DockPanel.Dock="Top">
             <TextBlock VerticalAlignment="Center" WindowChrome.IsHitTestVisibleInChrome="True">
                 <Hyperlink Command="{Binding NavigateBackCommand}">
                     <TextBlock Text="&#xea5c;" FontFamily="{DynamicResource FontIcoFont}"
-                               FontSize="26" />
+                        FontSize="26" />
                 </Hyperlink>
             </TextBlock>
             <TextBlock Text="Playlist" VerticalAlignment="Center"
-                        Style="{StaticResource BaseTextBlockStyle}"
-                       Margin="10,0,0,0" FontSize="18"/>
+                Style="{StaticResource BaseTextBlockStyle}"
+                Margin="10,0,0,0" FontSize="18"/>
         </StackPanel>
         <ListView
-            SelectedIndex="1"
             Margin="5"
             ItemsSource="{Binding PlaylistGames}"
-            AllowDrop="True">
-            <ListView.View>
+            AllowDrop="True"
+            dd:DragDrop.IsDragSource="True"
+            dd:DragDrop.IsDropTarget="True">
+        <ListView.View>
                 <GridView>
-                    <GridViewColumn Header="" Width="65">
+                    <GridViewColumn Header="" Width="55">
                         <GridViewColumn.CellTemplate>
                             <DataTemplate>
                                 <Button
                                     Command="{Binding RelativeSource={RelativeSource AncestorType=UserControl}, Path=DataContext.StartGameCommand}"
                                     CommandParameter="{Binding .}"
-                                    Width="50" Height="40">
-                                    <TextBlock Text="&#xec74;" FontFamily="{DynamicResource FontIcoFont}"
-                               FontSize="26" />
+                                    Width="40" Height="40" HorizontalAlignment="Right">
+                                    <TextBlock Text="&#xec74;" FontFamily="{DynamicResource FontIcoFont}" FontSize="18" />
                                 </Button>
                             </DataTemplate>
                         </GridViewColumn.CellTemplate>
                     </GridViewColumn>
-                    <GridViewColumn Header="" Width="50">
+                    <GridViewColumn Header="" Width="55">
                         <GridViewColumn.CellTemplate>
                             <DataTemplate>
-                                <Image Stretch="Uniform" StretchDirection="DownOnly"
+                                <Image Stretch="Uniform" 
                                     RenderOptions.BitmapScalingMode="Fant"
-                                    Height="32" Width="32" HorizontalAlignment="Center"
+                                    Height="40" Width="40" HorizontalAlignment="Center"
                                     Source="{Binding Icon, Mode=OneWay, Converter={StaticResource ImageStringToImageConverterCached}}" />
                             </DataTemplate>
                         </GridViewColumn.CellTemplate>
diff --git a/packages.config b/packages.config
index 99a3902..8b4f9a0 100644
--- a/packages.config
+++ b/packages.config
@@ -1,4 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
+  <package id="gong-wpf-dragdrop" version="2.4.1" targetFramework="net462" />
   <package id="PlayniteSDK" version="6.0.0-preview3" targetFramework="net462" />
 </packages>
\ No newline at end of file