WPF - added video player for digital forms

inabox.wpf/DigitalForms/Designer/Controls/Fields/DFVideoControl.cs

@@ -1,12 +1,16 @@
 using InABox.Core;
 using InABox.WPF;
+using Microsoft.Win32;
+using Syncfusion.XPS;
 using System;
 using System.Collections.Generic;
+using System.Diagnostics;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
 using System.Windows;
 using System.Windows.Controls;
+using System.Windows.Media;
 
 namespace InABox.DynamicGrid
 {
@@ -14,21 +18,24 @@ namespace InABox.DynamicGrid
     {
         Button PlayButton;
         Button PauseButton;
+        Button DownloadButton;
         MediaElement Player;
+        Grid grid;
+        Point center;
+        int rotation = 90;
         bool firstPlay = true;
 
         byte[]? Data;
 
         protected override FrameworkElement Create()
         {
-            var grid = new Grid();
+            grid = new Grid();
 
             grid.ColumnDefinitions.Add(new ColumnDefinition { Width = GridLength.Auto });
             grid.ColumnDefinitions.Add(new ColumnDefinition { Width = new GridLength(1, GridUnitType.Star) });
 
-            grid.RowDefinitions.Add(new RowDefinition { Height = GridLength.Auto });
             grid.RowDefinitions.Add(new RowDefinition { Height = new GridLength(1, GridUnitType.Star) });
-
+            grid.RowDefinitions.Add(new RowDefinition { Height = GridLength.Auto });
 
             PlayButton = new Button
             {
@@ -42,51 +49,94 @@ namespace InABox.DynamicGrid
                 Source = Wpf.Resources.play_button.AsBitmapImage(),
             };
             PlayButton.Click += PlayButton_Click;
-            PlayButton.SetGridPosition(0, 0);
 
             PauseButton = new Button
             {
                 Width = 25,
                 Height = 25,
-                Margin = new Thickness(5),
-                Visibility = Visibility.Hidden
+                Margin = new Thickness(5)
             };
             PauseButton.Content = new Image
             {
-                Source = Wpf.Resources.pause_button.AsBitmapImage()
+                Source = Wpf.Resources.pause_button.AsBitmapImage(),
             };
             PauseButton.Click += PauseButton_Click;
-            PauseButton.SetGridPosition(0, 0);
+
+            DownloadButton = new Button
+            {
+                Width = 25,
+                Height = 25,
+                Margin = new Thickness(5)
+            };
+            DownloadButton.Content = new Image
+            {
+                Source = Wpf.Resources.download.AsBitmapImage(),
+            };
+            DownloadButton.Click += DownloadButton_Click;
+
+            StackPanel panel = new StackPanel();
+            panel.Orientation = Orientation.Horizontal;
+            panel.Children.Add(PlayButton);
+            panel.Children.Add(PauseButton);
+            panel.Children.Add(DownloadButton);
+            panel.HorizontalAlignment = HorizontalAlignment.Center;
+            panel.SetGridPosition(1, 0, 1, 2);
 
             Player = new MediaElement();
             Player.Stretch = System.Windows.Media.Stretch.Fill;
             Player.Visibility = Visibility.Visible;
-            Player.SetGridPosition(1, 0, 1, 2);
+            Player.VerticalAlignment = VerticalAlignment.Center;
+            Player.HorizontalAlignment = HorizontalAlignment.Center;
+            Player.SetGridPosition(0, 0, 1, 2);
+            Player.LoadedBehavior = MediaState.Manual;
 
-            grid.Children.Add(PlayButton);
-            grid.Children.Add(PauseButton);
+            grid.Children.Add(panel);
             grid.Children.Add(Player);
 
             return grid;
         }
 
+        private void DownloadButton_Click(object sender, RoutedEventArgs e)
+        {
+            var dlg = new SaveFileDialog();
+            dlg.AddExtension = true;
+            dlg.DefaultExt = ".mp4";
+            dlg.ShowDialog();
+            if (!string.IsNullOrWhiteSpace(dlg.FileName))
+            {
+                System.IO.File.WriteAllBytes(dlg.FileName, GetValue());
+                MessageBox.Show("Success - file saved to: "
+                    + System.Environment.NewLine
+                    + dlg.FileName);
+
+                var dir = System.IO.Path.GetDirectoryName(dlg.FileName);
+
+                ProcessStartInfo startInfo = new ProcessStartInfo
+                {
+                    Arguments = dir,
+                    FileName = "explorer.exe"
+                };
+                Process.Start(startInfo);
+            }
+        }
+
+        private void PauseButton_Click(object sender, RoutedEventArgs e)
+        {
+            Player.Pause();
+        }
+
         private void PlayButton_Click(object sender, RoutedEventArgs e)
         {
             var path = System.IO.Path.GetTempFileName();
             path = path.Substring(0, path.Length - 4) + ".mp4";
 
             System.IO.File.WriteAllBytes(path, GetValue());
+
             Player.Source = new Uri(path);
 
-            firstPlay = false;
+            Player.Play();
         }
 
-        private void PauseButton_Click(object sender, RoutedEventArgs e)
-        {
-            Player.Pause();
-            PauseButton.Visibility = Visibility.Hidden;
-            PlayButton.Visibility = Visibility.Visible;
-        }
 
         public override byte[] GetValue()
         {