- Add support for filtering by category

- Break up main window into partials instead of using regions

Application/MainWindow/DragDrop.cs

@@ -0,0 +1,52 @@
+using System;
+using System.Linq;
+using System.Net;
+using System.Windows;
+
+namespace FeedCenter
+{
+    public partial class MainWindow
+    {
+        private readonly string[] _chromeExtensions = { "chrome-extension://ehojfdcmnajoklleckniaifaijfnkpbi/subscribe.html?", "chrome-extension://nlbjncdgjeocebhnmkbbbdekmmmcbfjd/subscribe.html?" };
+
+        private void HandleDragOver(object sender, DragEventArgs e)
+        {
+            // Default to not allowed
+            e.Effects = DragDropEffects.None;
+            e.Handled = true;
+
+            // If there isn't any text in the data then it is not allowed
+            if (!e.Data.GetDataPresent(DataFormats.Text))
+                return;
+
+            // Get the data as a string
+            var data = (string) e.Data.GetData(DataFormats.Text);
+
+            // If the data doesn't look like a URI then it is not allowed
+            if (!Uri.IsWellFormedUriString(data, UriKind.Absolute))
+                return;
+
+            // Allowed
+            e.Effects = DragDropEffects.Copy;
+        }
+
+        private void HandleDragDrop(object sender, DragEventArgs e)
+        {
+            // Get the data as a string
+            var data = (string) e.Data.GetData(DataFormats.Text);
+
+            // Check to see if the data starts with any known Chrome extension
+            var chromeExtension = _chromeExtensions.FirstOrDefault(c => data.StartsWith(c));
+
+            // Remove the Chrome extension URL and decode the URL
+            if (chromeExtension != null)
+            {
+                data = data.Substring(chromeExtension.Length);
+                data = WebUtility.UrlDecode(data);
+            }
+
+            // Handle the new feed but allow the drag/drop to complete
+            Dispatcher.BeginInvoke(new NewFeedDelegate(HandleNewFeed), data);
+        }
+    }
+}