Implemented browsers search results Pg Up/Down navigation.

DPackRx/Extensions/UIExtensions.cs

@@ -0,0 +1,31 @@
+using System.Windows.Media;
+
+namespace DPackRx.Extensions
+{
+	public static class UIExtensions
+	{
+		/// <summary>
+		/// Custom: returns child element of a given type.
+		/// </summary>
+		public static T GetChild<T>(this Visual element) where T : Visual
+		{
+			if (element == null)
+				return default;
+
+			if (element.GetType() == typeof(T))
+				return element as T;
+
+			T result = null;
+
+			for (var index = 0; index < VisualTreeHelper.GetChildrenCount(element); index++)
+			{
+				var visualElement = VisualTreeHelper.GetChild(element, index) as Visual;
+				result = visualElement.GetChild<T>();
+				if (result != null)
+					break;
+			}
+
+			return result;
+		}
+	}
+}

DPackRx/UI/Behaviors/TextBoxInputRedirectToListView.cs

@@ -236,10 +236,40 @@ private static void PreviewKeyDown(object sender, KeyEventArgs e)
 										viewItemIndex = control.SelectedIndex;
 									}
 									break;
-								// TODO: would like to Page Up/Down via ScrollViewer but couldn't figure out how to change the selection accordingly
-								// case Key.PageUp:
-								// case Key.PageDown:
-							}
+								case Key.PageUp:
+								case Key.PageDown:
+									var scrollViewer = control.GetChild<ScrollViewer>();
+									if (scrollViewer != null)
+									{
+										redirected = true;
+										if (e.Key == Key.PageUp)
+											scrollViewer.PageUp();
+										else
+											scrollViewer.PageDown();
+										control.UpdateLayout(); // the only way I could figure out for page up/down to register
+
+										var panel = control.GetChild<VirtualizingStackPanel>();
+										if (panel != null)
+										{
+											viewItemIndex = (int)panel.VerticalOffset;
+
+											if (e.Key == Key.PageUp)
+											{
+												if (viewItemIndex == control.SelectedIndex)
+													viewItemIndex = 0;
+											}
+											else
+											{
+												if (viewItemIndex <= control.SelectedIndex)
+													viewItemIndex = control.Items.Count - 1;
+											}
+
+											if ((viewItemIndex >= 0) && (viewItemIndex <= control.Items.Count - 1))
+												control.SelectedIndex = viewItemIndex;
+										}
+									}
+									break;
+							} // switch
 
 							if (redirected && (viewItemIndex >= 0) && (viewItemIndex <= control.Items.Count - 1))
 								control.ScrollIntoView(control.Items[viewItemIndex]);
@@ -263,8 +293,9 @@ private static void PreviewKeyDown(object sender, KeyEventArgs e)
 
 									if ((utilsService != null) && (shellStatusBarService != null))
 									{
-										utilsService.SetClipboardData(item.Name);
-										shellStatusBarService.SetStatusBarText($"{Path.GetFileName(item.Name)} name copied to the clipboard");
+										var name = Path.GetFileName(item.Name);
+										utilsService.SetClipboardData(name);
+										shellStatusBarService.SetStatusBarText($"'{name}' copied to the clipboard");
 
 										redirected = true;
 										e.Handled = redirected;