simplify the EditCommentsForm and remove usages of GlobalWin

src/BizHawk.Client.EmuHawk/MainForm.Events.cs

@@ -2573,8 +2573,7 @@ namespace BizHawk.Client.EmuHawk
 		{
 			if (MovieSession.Movie.IsActive())
 			{
-				using var form = new EditCommentsForm();
-				form.GetMovie(MovieSession.Movie);
+				using var form = new EditCommentsForm(MovieSession.Movie, MovieSession.ReadOnly);
 				form.ShowDialog();
 			}
 		}

src/BizHawk.Client.EmuHawk/movie/EditCommentsForm.cs

@@ -2,29 +2,40 @@
 using System.ComponentModel;
 using System.Linq;
 using System.Windows.Forms;
-
 using BizHawk.Client.Common;
 
 namespace BizHawk.Client.EmuHawk
 {
 	public partial class EditCommentsForm : Form
 	{
-		private IMovie _selectedMovie;
+		private readonly IMovie _movie;
+		private readonly bool _readOnly;
 		private string _lastHeaderClicked;
 		private bool _sortReverse;
 
-		public EditCommentsForm()
+		public EditCommentsForm(IMovie movie, bool readOnly)
 		{
-			InitializeComponent();
+			_movie = movie;
+			_readOnly = readOnly;
 			_lastHeaderClicked = "";
 			_sortReverse = false;
-		}
 
-		public bool ForceReadWrite { get; set; }
+			InitializeComponent();
+		}
 
 		private void EditCommentsForm_Load(object sender, EventArgs e)
 		{
-			if (!ForceReadWrite && GlobalWin.MovieSession.ReadOnly)
+			if (_movie.Comments.Any())
+			{
+				for (int i = 0; i < _movie.Comments.Count; i++)
+				{
+					CommentGrid.Rows.Add();
+					var c = CommentGrid.Rows[i].Cells[0];
+					c.Value = _movie.Comments[i];
+				}
+			}
+
+			if (_readOnly)
 			{
 				CommentGrid.Columns[0].ReadOnly = true;
 				Text = "View Comments";
@@ -39,30 +50,14 @@ namespace BizHawk.Client.EmuHawk
 
 		private void Save()
 		{
-			_selectedMovie.Comments.Clear();
+			_movie.Comments.Clear();
 			for (int i = 0; i < CommentGrid.Rows.Count - 1; i++)
 			{
 				var c = CommentGrid.Rows[i].Cells[0];
-				_selectedMovie.Comments.Add(c.Value.ToString());
+				_movie.Comments.Add(c.Value.ToString());
 			}
 
-			_selectedMovie.Save();
-		}
-
-		public void GetMovie(IMovie m)
-		{
-			_selectedMovie = m;
-			if (!m.Comments.Any())
-			{
-				return;
-			}
-
-			for (int i = 0; i < m.Comments.Count; i++)
-			{
-				CommentGrid.Rows.Add();
-				var c = CommentGrid.Rows[i].Cells[0];
-				c.Value = m.Comments[i];
-			}
+			_movie.Save();
 		}
 
 		private void Cancel_Click(object sender, EventArgs e)

src/BizHawk.Client.EmuHawk/movie/PlayMovie.cs

@@ -518,8 +518,7 @@ namespace BizHawk.Client.EmuHawk
 			var indices = MovieView.SelectedIndices;
 			if (indices.Count > 0)
 			{
-				var form = new EditCommentsForm();
-				form.GetMovie(_movieList[MovieView.SelectedIndices[0]]);
+				var form = new EditCommentsForm(_movieList[MovieView.SelectedIndices[0]], _movieSession.ReadOnly);
 				form.Show();
 			}
 		}

src/BizHawk.Client.EmuHawk/tools/TAStudio/TAStudio.MenuItems.cs

@@ -993,9 +993,7 @@ namespace BizHawk.Client.EmuHawk
 
 		private void CommentsMenuItem_Click(object sender, EventArgs e)
 		{
-			var form = new EditCommentsForm();
-			form.GetMovie(CurrentTasMovie);
-			form.ForceReadWrite = true;
+			var form = new EditCommentsForm(CurrentTasMovie, true);
 			form.Show();
 		}