/// <summary>
/// Focus event handler
/// </summary>
/// <param name="e"></param>
protected override void OnPreviewGotKeyboardFocus(KeyboardFocusChangedEventArgs e)
{
base.OnPreviewGotKeyboardFocus(e);
if (!e.Handled && e.NewFocus == this)
{
if (!IsSelected && TabControlParent != null)
{
SetCurrentValueInternal(IsSelectedProperty, BooleanBoxes.TrueBox);
// If focus moved in result of selection - handle the event to prevent setting focus back on the new item
if (e.OldFocus != Keyboard.FocusedElement)
{
e.Handled = true;
}
else if (GetBoolField(BoolField.SetFocusOnContent))
{
TabControl parentTabControl = TabControlParent;
if (parentTabControl != null)
{
// Save the parent and check for null to make sure that SetCurrentValue didn't have a change handler
// that removed the TabItem from the tree.
ContentPresenter selectedContentPresenter = parentTabControl.SelectedContentPresenter;
if (selectedContentPresenter != null)
{
parentTabControl.UpdateLayout(); // Wait for layout
bool success = selectedContentPresenter.MoveFocus(new TraversalRequest(FocusNavigationDirection.First));
// If we successfully move focus inside the content then don't set focus to the header
if (success)
{
e.Handled = true;
}
}
}
}
}
}
}
/// <summary> Announces that the keyboard is focused on this element. </summary>
/// <param name="e">Keyboard input event arguments.</param>
// Token: 0x060056DB RID: 22235 RVA: 0x001805E4 File Offset: 0x0017E7E4
protected override void OnPreviewGotKeyboardFocus(KeyboardFocusChangedEventArgs e)
{
base.OnPreviewGotKeyboardFocus(e);
if (!e.Handled && e.NewFocus == this)
{
if (FrameworkAppContextSwitches.SelectionPropertiesCanLagBehindSelectionChangedEvent)
{
if (!this.IsSelected && this.TabControlParent != null)
{
base.SetCurrentValueInternal(TabItem.IsSelectedProperty, BooleanBoxes.TrueBox);
if (e.OldFocus != Keyboard.FocusedElement)
{
e.Handled = true;
return;
}
if (this.GetBoolField(TabItem.BoolField.SetFocusOnContent))
{
TabControl tabControlParent = this.TabControlParent;
if (tabControlParent != null)
{
ContentPresenter selectedContentPresenter = tabControlParent.SelectedContentPresenter;
if (selectedContentPresenter != null)
{
tabControlParent.UpdateLayout();
bool flag = selectedContentPresenter.MoveFocus(new TraversalRequest(FocusNavigationDirection.First));
if (flag)
{
e.Handled = true;
return;
}
}
}
}
}
}
else
{
if (!this.IsSelected && this.TabControlParent != null)
{
base.SetCurrentValueInternal(TabItem.IsSelectedProperty, BooleanBoxes.TrueBox);
if (e.OldFocus != Keyboard.FocusedElement)
{
e.Handled = true;
}
}
if (!e.Handled && this.GetBoolField(TabItem.BoolField.SetFocusOnContent))
{
TabControl tabControlParent2 = this.TabControlParent;
if (tabControlParent2 != null)
{
ContentPresenter selectedContentPresenter2 = tabControlParent2.SelectedContentPresenter;
if (selectedContentPresenter2 != null)
{
tabControlParent2.UpdateLayout();
bool flag2 = selectedContentPresenter2.MoveFocus(new TraversalRequest(FocusNavigationDirection.First));
if (flag2)
{
e.Handled = true;
}
}
}
}
}
}
}