public override AccessibleObject Navigate(AccessibleNavigation navigationDirection)
{
ToolStripItem nextItem = null;
if (Owner != null)
{
ToolStrip parent = Owner.ParentInternal;
if (parent is null)
{
return(null);
}
bool forwardInCollection = (parent.RightToLeft == RightToLeft.No);
switch (navigationDirection)
{
case AccessibleNavigation.FirstChild:
nextItem = parent.GetNextItem(null, ArrowDirection.Right, /*RTLAware=*/ true);
break;
case AccessibleNavigation.LastChild:
nextItem = parent.GetNextItem(null, ArrowDirection.Left, /*RTLAware=*/ true);
break;
case AccessibleNavigation.Previous:
case AccessibleNavigation.Left:
nextItem = parent.GetNextItem(Owner, ArrowDirection.Left, /*RTLAware=*/ true);
break;
case AccessibleNavigation.Next:
case AccessibleNavigation.Right:
nextItem = parent.GetNextItem(Owner, ArrowDirection.Right, /*RTLAware=*/ true);
break;
case AccessibleNavigation.Up:
nextItem = (Owner.IsOnDropDown) ? parent.GetNextItem(Owner, ArrowDirection.Up) :
parent.GetNextItem(Owner, ArrowDirection.Left, /*RTLAware=*/ true);
break;
case AccessibleNavigation.Down:
nextItem = (Owner.IsOnDropDown) ? parent.GetNextItem(Owner, ArrowDirection.Down) :
parent.GetNextItem(Owner, ArrowDirection.Right, /*RTLAware=*/ true);
break;
}
}
return(nextItem?.AccessibilityObject);
}
private ToolStripItem GetNextItem(ToolStrip parent, ToolStripItem startItem, ArrowDirection direction)
{
if ((parent.RightToLeft == RightToLeft.Yes) && ((direction == ArrowDirection.Left) || (direction == ArrowDirection.Right)))
{
if (direction == ArrowDirection.Right)
{
direction = ArrowDirection.Left;
}
else if (direction == ArrowDirection.Left)
{
direction = ArrowDirection.Right;
}
}
return parent.GetNextItem(startItem, direction);
}
public void MethodGetNextItemIEAE ()
{
ToolStrip ts = new ToolStrip ();
ts.GetNextItem (null, (ArrowDirection)42);
}
public void MethodGetNextItem ()
{
ToolStrip ts = new ToolStrip ();
ts.Items.Add ("Test Item 1");
Form f = new Form ();
f.ShowInTaskbar = false;
f.Controls.Add (ts);
f.Show ();
Assert.AreEqual (ts.Items[0], ts.GetNextItem (null, ArrowDirection.Right), "A1");
Assert.AreEqual (ts.Items[0], ts.GetNextItem (ts.Items[0], ArrowDirection.Right), "A2");
ts.Items.Add ("Test Item 2");
Assert.AreEqual (ts.Items[0], ts.GetNextItem (null, ArrowDirection.Right), "A3");
Assert.AreEqual (ts.Items[1], ts.GetNextItem (ts.Items[0], ArrowDirection.Right), "A4");
f.Dispose ();
}