private static bool NavigateCommandFocus(CommandBarNavigationDirection barNavigationDirection)
{
var sortedNavigationList = GetSortedNavigationList();
var index = sortedNavigationList.FindIndex(control => control.IsKeyboardFocusWithin);
if (index < 0)
{
return(false);
}
var direction = barNavigationDirection == CommandBarNavigationDirection.Next ? 1 : -1;
for (var currentIndex = NextIndex(index, direction, sortedNavigationList.Count);
currentIndex != index;
currentIndex = NextIndex(currentIndex, direction, sortedNavigationList.Count))
{
if (sortedNavigationList[currentIndex] is ItemsControl control)
{
if (TryEnterCommandBar(control))
{
return(true);
}
else if (TryFocusElementOrDescendant(sortedNavigationList[currentIndex]))
{
return(true);
}
}
}
return(false);
}
public bool FilterKeyDownMessage(Key realKey, ModifierKeys modifierKeys, bool isRepeat)
{
var flag1 = false;
if (MenuModeHelper.IsInCommandMode)
{
if (MenuModeHelper.CommandModeKind == CommandBarModeKind.SearchControl)
{
if (IsAltKey(realKey) && TestModifierKeys(modifierKeys, ModifierKeys.Shift,
ModifierKeys.Control | ModifierKeys.Windows))
{
Keyboard.Focus(null);
flag1 = true;
}
else if (ShouldHandleSearchControlEscapeKey(realKey))
{
Keyboard.Focus(null);
flag1 = true;
}
}
var flag2 = false;
if (IsTabKey(realKey) && TestModifierKeys(modifierKeys, ModifierKeys.Control,
ModifierKeys.Alt | ModifierKeys.Windows))
{
flag2 = true;
_cycleDirection = TestModifierKeys(modifierKeys, ModifierKeys.Shift)
? CommandBarNavigationDirection.Previous
: CommandBarNavigationDirection.Next;
}
else if (MenuModeHelper.CommandModeKind == CommandBarModeKind.NavigableControl &&
TestModifierKeys(modifierKeys, ModifierKeys.None,
ModifierKeys.Alt | ModifierKeys.Control | ModifierKeys.Windows))
{
if (IsTabKey(realKey))
{
flag2 = true;
_cycleDirection = TestModifierKeys(modifierKeys, ModifierKeys.Shift)
? CommandBarNavigationDirection.Previous
: CommandBarNavigationDirection.Next;
}
else if (realKey == Key.Left)
{
flag2 = true;
_cycleDirection = CommandBarNavigationDirection.Previous;
}
else if (realKey == Key.Right)
{
flag2 = true;
_cycleDirection = CommandBarNavigationDirection.Next;
}
else if (realKey == Key.Escape)
{
Keyboard.Focus(null);
flag1 = true;
}
}
if (flag2)
{
if (_encounteredTabKey == Key.None)
{
_encounteredTabKey = realKey;
_isInTabCycle = true;
}
if (_isInTabCycle)
{
flag1 = NavigateCommandFocus(_cycleDirection);
}
}
}
else
{
_isInTabCycle = false;
_encounteredTabKey = Key.None;
}
return(flag1);
}
