Horizon – Diff between revs 8 and 27

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Rev 8 – Details – Blame – Last modification – View Log

 ï»¿using System;
+using System.Security.Policy;
+using System.Threading;
 using System.Windows.Forms;
+using Horizon.Database;
 using Horizon.Utilities;
+using Serilog;
+using static System.Net.Mime.MediaTypeNames;
 namespace Horizon.Snapshots
+{
     public partial class SnapshotNoteForm : Form
+    {
+        #region Private Delegates, Events, Enums, Properties, Indexers and Fields
-        #region Private Delegates, Events, Enums, Properties, Indexers and Fields
+        private readonly CancellationToken _cancellationToken;
         private readonly string _hash;
-        private readonly SnapshotManagerForm _snapshotManagerForm;
+        private readonly SnapshotDatabase _snapshotDatabase;
         public SnapshotNoteForm()
+        {
             InitializeComponent();
+        }
-        public SnapshotNoteForm(SnapshotManagerForm snapshotManagerForm, SnapshotPreview snapshotPreview) : this()
+        public SnapshotNoteForm(string hash, SnapshotDatabase snapshotDatabase, CancellationToken cancellationToken) : this()
         {
-            _snapshotManagerForm = snapshotManagerForm;
+            _hash = hash;
-            _snapshotManagerForm.PreviewRetrieved += SnapshotManagerForm_PreviewRetrieved;
+            _snapshotDatabase = snapshotDatabase;
-            richTextBox1.InvokeIfRequired(richTextBox => { richTextBox.Text = snapshotPreview.Note; });
+            _cancellationToken = cancellationToken;
+        }
         /// <summary>
             if (disposing && components != null)
+            {
                 components.Dispose();
+            }
-            _snapshotManagerForm.PreviewRetrieved -= SnapshotManagerForm_PreviewRetrieved;
             base.Dispose(disposing);
+        }
         #endregion
         #region Event Handlers
+        private async void SnapshotNoteForm_Load(object sender, EventArgs e)
+        {
-        private void SnapshotNoteForm_Load(object sender, EventArgs e)
+            Utilities.WindowState.FormTracker.Track(this);
-        {
+            try
+            {
-            Utilities.WindowState.FormTracker.Track(this);
+                var snapshotPreview = await _snapshotDatabase.RetrievePreviewAsync(_hash, _cancellationToken);
+                if (snapshotPreview == null)
+                {
-        }
+                    return;
+                }
+                richTextBox1.InvokeIfRequired(richTextBox => { richTextBox.Text = snapshotPreview.Note; });
+            }
+            catch (Exception exception)
         private void SnapshotManagerForm_PreviewRetrieved(object sender, PreviewRetrievedEventArgs e)
                 Log.Error(exception, "Unable to load note.");
             richTextBox1.InvokeIfRequired(richTextBox => { richTextBox.Text = e.SnapshotPreview.Note; });
+        }