/// <summary>
/// Handles <see cref="GamePad.AxisDownEvent"/> when the drop down is open.
/// </summary>
private void OnGamePadAxisDown_DropDownOpen(GamePadDevice device, GamePadAxis axis, Single value, Boolean repeat, ref RoutedEventData data)
{
if (GamePad.UseAxisForDirectionalNavigation)
{
if (GamePad.DirectionalNavigationAxisX == axis || GamePad.DirectionalNavigationAxisY == axis)
{
var direction = device.GetJoystickDirectionFromAxis(axis);
switch (direction)
{
case GamePadJoystickDirection.Up:
MoveItemFocus(-1);
break;
case GamePadJoystickDirection.Down:
MoveItemFocus(1);
break;
case GamePadJoystickDirection.Left:
if (PART_ScrollViewer != null)
{
PART_ScrollViewer.HandleKeyScrolling(Key.Left, ModifierKeys.None, ref data);
}
break;
case GamePadJoystickDirection.Right:
if (PART_ScrollViewer != null)
{
PART_ScrollViewer.HandleKeyScrolling(Key.Right, ModifierKeys.None, ref data);
}
break;
}
data.Handled = true;
}
}
}
/// <summary>
/// Handles <see cref="GamePad.ButtonDownEvent"/> when the drop down is open.
/// </summary>
private void OnGamePadButtonDown_DropDownOpen(GamePadDevice device, GamePadButton button, Boolean repeat, ref RoutedEventData data)
{
if (GamePad.ConfirmButton == button)
{
SelectFocusedItem();
IsDropDownOpen = false;
data.Handled = true;
}
else if (GamePad.CancelButton == button)
{
IsDropDownOpen = false;
data.Handled = true;
}
else if (GamePad.TabButton == button)
{
PerformTabNavigation(Key.Tab, ModifierKeys.None);
data.Handled = true;
}
else if (GamePad.ShiftTabButton == button)
{
PerformTabNavigation(Key.Tab, ModifierKeys.Shift);
data.Handled = true;
}
else
{
if (!GamePad.UseAxisForDirectionalNavigation)
{
switch (button)
{
case GamePadButton.DPadUp:
MoveItemSelection(-1);
break;
case GamePadButton.DPadDown:
MoveItemSelection(1);
break;
case GamePadButton.DPadLeft:
if (PART_ScrollViewer != null)
{
PART_ScrollViewer.HandleKeyScrolling(Key.Left, ModifierKeys.None, ref data);
}
break;
case GamePadButton.DPadRight:
if (PART_ScrollViewer != null)
{
PART_ScrollViewer.HandleKeyScrolling(Key.Right, ModifierKeys.None, ref data);
}
break;
}
data.Handled = true;
}
}
}
/// <inheritdoc/>
protected override void OnGamePadButtonDown(GamePadDevice device, GamePadButton button, Boolean repeat, ref RoutedEventData data)
{
if (GamePad.ConfirmButton == button)
{
var listBoxItem = ItemsControlUtil.FindContainer <ListBoxItem>(this, data.OriginalSource);
if (listBoxItem != null)
{
HandleItemClicked(listBoxItem);
data.Handled = true;
}
}
else
{
if (!GamePad.UseAxisForDirectionalNavigation)
{
switch (button)
{
case GamePadButton.DPadLeft:
if (PART_ScrollViewer != null)
{
PART_ScrollViewer.HandleKeyScrolling(Key.Left, ModifierKeys.None, ref data);
}
data.Handled = true;
break;
case GamePadButton.DPadRight:
if (PART_ScrollViewer != null)
{
PART_ScrollViewer.HandleKeyScrolling(Key.Right, ModifierKeys.None, ref data);
}
data.Handled = true;
break;
case GamePadButton.DPadUp:
if (SelectionMode == SelectionMode.Single)
{
MoveSelectedItem(FocusNavigationDirection.Up);
}
data.Handled = true;
break;
case GamePadButton.DPadDown:
if (SelectionMode == SelectionMode.Single)
{
MoveSelectedItem(FocusNavigationDirection.Down);
}
data.Handled = true;
break;
}
}
}
base.OnGamePadButtonDown(device, button, repeat, ref data);
}
/// <inheritdoc/>
protected override void OnGamePadAxisDown(GamePadDevice device, GamePadAxis axis, Single value, Boolean repeat, ref RoutedEventData data)
{
if (GamePad.UseAxisForDirectionalNavigation && (axis == GamePad.DirectionalNavigationAxisX || axis == GamePad.DirectionalNavigationAxisY))
{
var direction = device.GetJoystickDirectionFromAxis(axis);
switch (direction)
{
case GamePadJoystickDirection.Left:
if (PART_ScrollViewer != null)
{
PART_ScrollViewer.HandleKeyScrolling(Key.Left, ModifierKeys.None, ref data);
}
break;
case GamePadJoystickDirection.Right:
if (PART_ScrollViewer != null)
{
PART_ScrollViewer.HandleKeyScrolling(Key.Right, ModifierKeys.None, ref data);
}
break;
case GamePadJoystickDirection.Up:
if (SelectionMode == SelectionMode.Single)
{
MoveSelectedItem(FocusNavigationDirection.Up);
}
break;
case GamePadJoystickDirection.Down:
if (SelectionMode == SelectionMode.Single)
{
MoveSelectedItem(FocusNavigationDirection.Down);
}
break;
}
data.Handled = true;
}
base.OnGamePadAxisDown(device, axis, value, repeat, ref data);
}
/// <summary>
/// Handles <see cref="Keyboard.KeyDownEvent"/> when the drop down is open.
/// </summary>
private void OnKeyDown_DropDownOpen(KeyboardDevice device, Key key, ModifierKeys modifiers, ref RoutedEventData data)
{
switch (key)
{
case Key.Tab:
PerformTabNavigation(key, modifiers);
data.Handled = true;
break;
case Key.Escape:
IsDropDownOpen = false;
data.Handled = true;
break;
case Key.Return:
SelectFocusedItem();
IsDropDownOpen = false;
data.Handled = true;
break;
case Key.Up:
MoveItemFocus(-1);
data.Handled = true;
break;
case Key.Down:
MoveItemFocus(1);
data.Handled = true;
break;
case Key.PageUp:
var pageUpTarget = ItemsControlUtil.GetPageUpNext <ComboBoxItem>(this, PART_ScrollViewer);
if (pageUpTarget != null && pageUpTarget.Focus())
{
ItemsControlUtil.ScrollItemIntoView <ComboBoxItem>(this, PART_ScrollViewer, pageUpTarget, false);
}
data.Handled = true;
break;
case Key.PageDown:
var pageDownTarget = ItemsControlUtil.GetPageDownNext <ComboBoxItem>(this, PART_ScrollViewer);
if (pageDownTarget != null && pageDownTarget.Focus())
{
ItemsControlUtil.ScrollItemIntoView <ComboBoxItem>(this, PART_ScrollViewer, pageDownTarget, false);
}
data.Handled = true;
break;
case Key.Home:
var firstItem = ItemsControlUtil.GetFirstItem <ComboBoxItem>(this, PART_ScrollViewer);
if (firstItem != null && firstItem.Focus())
{
ItemsControlUtil.ScrollItemIntoView <ComboBoxItem>(this, PART_ScrollViewer, firstItem);
}
data.Handled = true;
break;
case Key.End:
var lastItem = ItemsControlUtil.GetLastItem <ComboBoxItem>(this, PART_ScrollViewer);
if (lastItem != null && lastItem.Focus())
{
ItemsControlUtil.ScrollItemIntoView <ComboBoxItem>(this, PART_ScrollViewer, lastItem);
}
data.Handled = true;
break;
case Key.Left:
case Key.Right:
if (PART_ScrollViewer != null)
{
PART_ScrollViewer.HandleKeyScrolling(key, modifiers, ref data);
}
data.Handled = true;
break;
}
}
/// <inheritdoc/>
protected override void OnKeyDown(KeyboardDevice device, Key key, ModifierKeys modifiers, ref RoutedEventData data)
{
switch (key)
{
case Key.Space:
case Key.Return:
if (key == Key.Return && !GetValue <Boolean>(KeyboardNavigation.AcceptsReturnProperty))
{
break;
}
var listBoxItem = ItemsControlUtil.FindContainer <ListBoxItem>(this, data.OriginalSource);
if (listBoxItem != null)
{
HandleItemClicked(listBoxItem);
data.Handled = true;
}
break;
case Key.Left:
case Key.Right:
if (PART_ScrollViewer != null)
{
PART_ScrollViewer.HandleKeyScrolling(key, modifiers, ref data);
}
data.Handled = true;
break;
case Key.Up:
if (SelectionMode == SelectionMode.Single)
{
MoveSelectedItem(FocusNavigationDirection.Up, modifiers);
}
data.Handled = true;
break;
case Key.Down:
if (SelectionMode == SelectionMode.Single)
{
MoveSelectedItem(FocusNavigationDirection.Down, modifiers);
}
data.Handled = true;
break;
case Key.Home:
var firstItem = ItemsControlUtil.GetFirstItem <ListBoxItem>(this, PART_ScrollViewer);
if (firstItem != null && firstItem.Focus())
{
HandleItemClickedAndScrollIntoView(firstItem);
}
data.Handled = true;
break;
case Key.End:
var lastItem = ItemsControlUtil.GetLastItem <ListBoxItem>(this, PART_ScrollViewer);
if (lastItem != null && lastItem.Focus())
{
HandleItemClickedAndScrollIntoView(lastItem);
}
data.Handled = true;
break;
case Key.PageUp:
var pageUpTarget = ItemsControlUtil.GetPageUpNext <ListBoxItem>(this, PART_ScrollViewer);
if (pageUpTarget != null && pageUpTarget.Focus())
{
HandleItemClickedAndScrollIntoView(pageUpTarget, false);
}
data.Handled = true;
break;
case Key.PageDown:
var pageDownTarget = ItemsControlUtil.GetPageDownNext <ListBoxItem>(this, PART_ScrollViewer);
if (pageDownTarget != null && pageDownTarget.Focus())
{
HandleItemClickedAndScrollIntoView(pageDownTarget, false);
}
data.Handled = true;
break;
}
base.OnKeyDown(device, key, modifiers, ref data);
}
