private FindNextElementOptions GetFindNextElementOptions()
{
var findNextElementOptions = new FindNextElementOptions();
findNextElementOptions.SearchRoot = this;
return(findNextElementOptions);
}
private void CommandTextBox_OnKeyUp(object sender, KeyRoutedEventArgs e)
{
switch (e.Key)
{
case VirtualKey.Down:
case VirtualKey.Up:
if (!CommandTextBox.IsSuggestionListOpen)
{
CommandTextBox.IsSuggestionListOpen = true;
}
break;
case VirtualKey.Enter:
if (string.IsNullOrWhiteSpace(CommandTextBox.Text) && !CommandTextBox.IsSuggestionListOpen)
{
CommandTextBox.IsSuggestionListOpen = true;
}
else
{
// TODO: Try to find a better way to handle [Enter] on auto-complete field.
// Weird way to move the focus to the primary button...
if (!(FocusManager.FindLastFocusableElement(this) is Control secondaryButton) ||
!secondaryButton.Name.Equals("SecondaryButton"))
{
return;
}
secondaryButton.Focus(FocusState.Programmatic);
var options = new FindNextElementOptions
{
SearchRoot = this,
XYFocusNavigationStrategyOverride = XYFocusNavigationStrategyOverride.Projection
};
if (FocusManager.FindNextElement(FocusNavigationDirection.Left, options) is Control primaryButton)
{
primaryButton.Focus(FocusState.Programmatic);
}
}
break;
}
}
private void OnKeyDown(object sender, KeyRoutedEventArgs e)
{
DependencyObject candidate = null;
var options = new FindNextElementOptions()
{
SearchRoot = TicTacToeGrid,
XYFocusNavigationStrategyOverride = XYFocusNavigationStrategyOverride.Projection
};
switch (e.Key)
{
case Windows.System.VirtualKey.Up:
candidate =
FocusManager.FindNextElement(
FocusNavigationDirection.Up, options);
break;
case Windows.System.VirtualKey.Down:
candidate =
FocusManager.FindNextElement(
FocusNavigationDirection.Down, options);
break;
case Windows.System.VirtualKey.Left:
candidate = FocusManager.FindNextElement(
FocusNavigationDirection.Left, options);
break;
case Windows.System.VirtualKey.Right:
candidate =
FocusManager.FindNextElement(
FocusNavigationDirection.Right, options);
break;
}
// Also consider whether candidate is a Hyperlink, WebView, or TextBlock.
if (candidate != null && candidate is Control)
{
(candidate as Control).Focus(FocusState.Keyboard);
}
}
private void ScrollViewer_PreviewKeyDown(object sender, Windows.UI.Xaml.Input.KeyRoutedEventArgs e)
{
var options = new FindNextElementOptions()
{
SearchRoot = sender as ScrollViewer,
XYFocusNavigationStrategyOverride = XYFocusNavigationStrategyOverride.NavigationDirectionDistance
};
switch (e.Key)
{
case VirtualKey.Up:
case VirtualKey.GamepadDPadUp:
case VirtualKey.GamepadLeftThumbstickUp:
{
var candidate = FocusManager.FindNextElement(FocusNavigationDirection.Up, options);
if (candidate is ListViewItem)
{
}
e.Handled = true;
}
break;
case VirtualKey.Down:
case VirtualKey.GamepadDPadDown:
case VirtualKey.GamepadLeftThumbstickDown:
{
var candidate = FocusManager.FindNextElement(FocusNavigationDirection.Down, options);
if (candidate is ListViewItem)
{
}
e.Handled = true;
}
break;
}
}
private void JustifiedWrapPanel_KeyDown(object sender, KeyRoutedEventArgs e)
{
DependencyObject candidate = null;
var options = new FindNextElementOptions()
{
SearchRoot = this,
XYFocusNavigationStrategyOverride = XYFocusNavigationStrategyOverride.Projection
};
switch (e.Key)
{
case Windows.System.VirtualKey.Up:
candidate = FocusManager.FindNextElement(FocusNavigationDirection.Up, options);
break;
case Windows.System.VirtualKey.Down:
candidate = FocusManager.FindNextElement(FocusNavigationDirection.Down, options);
break;
case Windows.System.VirtualKey.Left:
candidate = FocusManager.FindNextElement(FocusNavigationDirection.Left, options);
if (candidate == null)
{
// Wrap the line and try to move to the previous row
candidate = FocusManager.FindNextElement(FocusNavigationDirection.Up, options);
if (candidate != null)
{
while (FocusManager.FindNextElement(FocusNavigationDirection.Right, options) != null)
{
(candidate as Control).Focus(FocusState.Keyboard);
candidate = FocusManager.FindNextElement(FocusNavigationDirection.Right, options);
}
}
}
break;
case Windows.System.VirtualKey.Right:
candidate = FocusManager.FindNextElement(FocusNavigationDirection.Right, options);
if (candidate == null)
{
// Wrap the line and try to move to the ext row
candidate = FocusManager.FindNextElement(FocusNavigationDirection.Down, options);
if (candidate != null)
{
while (FocusManager.FindNextElement(FocusNavigationDirection.Left, options) != null)
{
(candidate as Control).Focus(FocusState.Keyboard);
candidate = FocusManager.FindNextElement(FocusNavigationDirection.Left, options);
}
}
}
else
{
// Handle the last row last item cas
// Prevent it to move back to last row right most item
var oldItem = FocusManager.GetFocusedElement();
(candidate as Control).Focus(FocusState.Keyboard);
if (oldItem != FocusManager.FindNextElement(FocusNavigationDirection.Left, options))
{
candidate = (DependencyObject)oldItem;
}
}
break;
}
//Note you should also consider whether is a Hyperlink, WebView, or TextBlock.
if (candidate != null && candidate is Control)
{
(candidate as Control).Focus(FocusState.Keyboard);
e.Handled = true;
}
}
private async void ButtonCardItem_PreviewKeyDown(object sender, KeyRoutedEventArgs e)
{
FlipViewBanner.UpdateLayout();
VerticalRepeater.UpdateLayout();
FindNextElementOptions findNextElementOptions = new FindNextElementOptions
{
SearchRoot = ScrollViewerHome,
XYFocusNavigationStrategyOverride = XYFocusNavigationStrategyOverride.NavigationDirectionDistance
};
//Before move focus
//Get current item data context
var currentItem = (sender as Button).DataContext as ProductItem;
var currentFocusElement = FocusManager.GetFocusedElement() as Button;
switch (e.OriginalKey)
{
case VirtualKey.Up:
case VirtualKey.GamepadDPadUp:
case VirtualKey.GamepadLeftThumbstickUp:
case VirtualKey.Down:
case VirtualKey.GamepadDPadDown:
case VirtualKey.GamepadLeftThumbstickDown:
{
//if (!canTap)
//{
// e.Handled = true;
// return;
//}
//canTap = false;
}
break;
case VirtualKey.Left:
case VirtualKey.GamepadDPadLeft:
case VirtualKey.GamepadLeftThumbstickLeft:
{
}
break;
case VirtualKey.Right:
case VirtualKey.GamepadDPadRight:
case VirtualKey.GamepadLeftThumbstickRight:
{
}
break;
case VirtualKey.GamepadA:
case VirtualKey.Enter:
case VirtualKey.Space:
{
}
break;
default:
break;
}
try
{
switch (e.OriginalKey)
{
case VirtualKey.Up:
case VirtualKey.GamepadDPadUp:
case VirtualKey.GamepadLeftThumbstickUp:
{
//BringIntoViewOptions options = new BringIntoViewOptions
//{
// VerticalOffset = 50.0,
// AnimationDesired = true
//};
////var tt = currentFocusElement.TransformToVisual(appWindow.Content);
////Point currentFocusLeftTopPoint = tt.TransformPoint(new Point(appWindow.Bounds.Left, appWindow.Bounds.Top));
////Rect rect = new Rect(124, currentFocusLeftTopPoint.Y - 500, 1920, 500);
////var nextFocus = FocusManager.FindNextFocusableElement(FocusNavigationDirection.Next, rect);
//var candidate = FocusManager.FindNextElement(FocusNavigationDirection.Up, findNextElementOptions);
//if (candidate != null && candidate is Button)
//{
// (candidate as Control).StartBringIntoView();
// (candidate as Control).Focus(FocusState.Programmatic);
// e.Handled = true;
//}
//else if(candidate != null)
//{
// var current = FlipViewBanner.SelectedItem;
// var currentContainer = FlipViewBanner.ContainerFromItem(current) as FlipViewItem;
// var result = await FocusManager.TryFocusAsync(currentContainer, FocusState.Programmatic);
// currentContainer.StartBringIntoView();
// e.Handled = true;
//}
if (!canTap)
{
return;
}
canTap = false;
riverIndex--;
if (riverIndex < 0)
{
var current = FlipViewBanner.SelectedItem;
var currentContainer = FlipViewBanner.ContainerFromItem(current) as FlipViewItem;
var result = await FocusManager.TryFocusAsync(currentContainer, FocusState.Programmatic);
currentContainer.StartBringIntoView();
canTap = true;
e.Handled = true;
return;
}
try
{
Debug.WriteLine("River index: " + riverIndex);
var grid = VerticalRepeater.TryGetElement(riverIndex) as Grid;
if (grid != null)
{
grid.StartBringIntoView();
var horizontalRepeater = TreeHelper.FindVisualChild <ItemsRepeater>(grid);
if (horizontalRepeater != null)
{
horizontalRepeater.UpdateLayout();
var lastFocusedItem = horizontalRepeater.GetOrCreateElement(listIndexes[riverIndex]);
var button = TreeHelper.FindVisualChild <Button>(lastFocusedItem);
if (button != null)
{
button.Focus(FocusState.Programmatic);
button.StartBringIntoView();
canTap = true;
e.Handled = true;
}
}
}
}
catch
{
Debug.WriteLine("Do not scroll too fast!!!");
}
}
break;
case VirtualKey.Down:
case VirtualKey.GamepadDPadDown:
case VirtualKey.GamepadLeftThumbstickDown:
{
////Last river
//BringIntoViewOptions options = new BringIntoViewOptions
//{
// VerticalOffset = -50.0,
// AnimationDesired = true
//};
//var candidate = FocusManager.FindNextElement(FocusNavigationDirection.Down, findNextElementOptions);
//if (candidate != null && candidate is Control)
//{
// (candidate as Control).StartBringIntoView();
// (candidate as Control).Focus(FocusState.Programmatic);
// e.Handled = true;
//}
if (!canTap)
{
return;
}
canTap = false;
riverIndex++;
if (riverIndex > listIndexes.Count - 1)
{
riverIndex--;
e.Handled = true;
return;
}
try
{
Debug.WriteLine("River index: " + riverIndex);
var grid = VerticalRepeater.TryGetElement(riverIndex) as Grid;
if (grid != null)
{
grid.StartBringIntoView();
var horizontalRepeater = TreeHelper.FindVisualChild <ItemsRepeater>(grid);
if (horizontalRepeater != null)
{
horizontalRepeater.UpdateLayout();
var lastFocusedItem = horizontalRepeater.GetOrCreateElement(listIndexes[riverIndex]);
var button = TreeHelper.FindVisualChild <Button>(lastFocusedItem);
//Scroll to last river
if (riverIndex == listIndexes.Count - 1)
{
ScrollViewerHome.ChangeView(0.0f, ScrollViewerHome.ScrollableHeight, 1.0f);
}
if (button != null)
{
button.Focus(FocusState.Programmatic);
button.StartBringIntoView();
canTap = true;
e.Handled = true;
}
}
}
}
catch
{
Debug.WriteLine("Do not scroll too fast!!!");
}
}
break;
case VirtualKey.Left:
case VirtualKey.GamepadDPadLeft:
case VirtualKey.GamepadLeftThumbstickLeft:
{
var parent = TreeHelper.FindParentByName <ItemsRepeater>(sender as Button, "HorizontalRepeater");
FindNextElementOptions findNextElementOptions1 = new FindNextElementOptions
{
SearchRoot = parent,
XYFocusNavigationStrategyOverride = XYFocusNavigationStrategyOverride.Projection
};
var candidate = FocusManager.FindNextElement(FocusNavigationDirection.Left, findNextElementOptions1);
if (candidate != null && candidate is Control)
{
(candidate as Control).StartBringIntoView();
(candidate as Control).Focus(FocusState.Programmatic);
e.Handled = true;
}
else
{
ShellPage.shellPage.navigationView.IsPaneOpen = true;
e.Handled = true;
}
}
break;
case VirtualKey.Right:
case VirtualKey.GamepadDPadRight:
case VirtualKey.GamepadLeftThumbstickRight:
{
}
break;
case VirtualKey.GamepadA:
case VirtualKey.Enter:
case VirtualKey.Space:
{
}
break;
default:
break;
}
}
catch { }
finally
{
//Debug.WriteLine(DateTime.Now);
//await Task.Delay(1000);
//Debug.WriteLine("sss " + DateTime.Now);
//canTap = true;
}
}
private async void ButtonCardItem_PreviewKeyDown(object sender, KeyRoutedEventArgs e)
{
FlipViewBanner.UpdateLayout();
VerticalRepeater.UpdateLayout();
FindNextElementOptions findNextElementOptions = new FindNextElementOptions
{
SearchRoot = ScrollViewerHome,
XYFocusNavigationStrategyOverride = XYFocusNavigationStrategyOverride.NavigationDirectionDistance
};
//Before move focus
//Get current item data context
var currentItem = (sender as Button).DataContext as ProductItem;
var currentFocusElement = FocusManager.GetFocusedElement() as Button;
try
{
switch (e.OriginalKey)
{
case VirtualKey.Up:
case VirtualKey.GamepadDPadUp:
case VirtualKey.GamepadLeftThumbstickUp:
{
BringIntoViewOptions options = new BringIntoViewOptions
{
VerticalOffset = 50.0,
AnimationDesired = true
};
//var tt = currentFocusElement.TransformToVisual(appWindow.Content);
//Point currentFocusLeftTopPoint = tt.TransformPoint(new Point(appWindow.Bounds.Left, appWindow.Bounds.Top));
//Rect rect = new Rect(124, currentFocusLeftTopPoint.Y - 500, 1920, 500);
//var nextFocus = FocusManager.FindNextFocusableElement(FocusNavigationDirection.Next, rect);
var candidate = FocusManager.FindNextElement(FocusNavigationDirection.Up, findNextElementOptions);
if (candidate != null && candidate is Button)
{
(candidate as Control).StartBringIntoView();
(candidate as Control).Focus(FocusState.Programmatic);
e.Handled = true;
}
else if (candidate != null)
{
var current = FlipViewBanner.SelectedItem;
var currentContainer = FlipViewBanner.ContainerFromItem(current) as FlipViewItem;
var result = await FocusManager.TryFocusAsync(currentContainer, FocusState.Programmatic);
currentContainer.StartBringIntoView();
e.Handled = true;
}
}
break;
case VirtualKey.Down:
case VirtualKey.GamepadDPadDown:
case VirtualKey.GamepadLeftThumbstickDown:
{
//Last river
BringIntoViewOptions options = new BringIntoViewOptions
{
VerticalOffset = -50.0,
AnimationDesired = true
};
var candidate = FocusManager.FindNextElement(FocusNavigationDirection.Down, findNextElementOptions);
if (candidate != null && candidate is Control)
{
(candidate as Control).StartBringIntoView();
(candidate as Control).Focus(FocusState.Programmatic);
e.Handled = true;
}
}
break;
case VirtualKey.Left:
case VirtualKey.GamepadDPadLeft:
case VirtualKey.GamepadLeftThumbstickLeft:
{
var parent = TreeHelper.FindParentByName <ItemsRepeater>(sender as Button, "HorizontalRepeater");
FindNextElementOptions findNextElementOptions1 = new FindNextElementOptions
{
SearchRoot = parent,
XYFocusNavigationStrategyOverride = XYFocusNavigationStrategyOverride.Projection
};
var candidate = FocusManager.FindNextElement(FocusNavigationDirection.Left, findNextElementOptions1);
if (candidate != null && candidate is Control)
{
(candidate as Control).StartBringIntoView();
(candidate as Control).Focus(FocusState.Programmatic);
e.Handled = true;
}
else
{
ShellPage.shellPage.navigationView.IsPaneOpen = true;
e.Handled = true;
}
}
break;
case VirtualKey.Right:
case VirtualKey.GamepadDPadRight:
case VirtualKey.GamepadLeftThumbstickRight:
{
}
break;
case VirtualKey.GamepadA:
case VirtualKey.Enter:
case VirtualKey.Space:
{
}
break;
default:
break;
}
}
catch { }
finally
{
}
}
