/// <summary>
/// Removes the item from the view. If the item is one of the customizable items, then it is
/// collapsed, if it is an item added to the QAT from the UI, it is removed from the Items collection.
/// </summary>
public void Remove(object item)
{
if (!Items.Contains(item))
{
var dp = item as DependencyObject;
if (dp != null)
{
item = ItemContainerGenerator.ItemFromContainer(dp);
if (item == null || !Items.Contains(item))
{
return;
}
}
else
{
return;
}
}
var customizable = CustomizableItems.Where(c => c.Item == item).FirstOrDefault();
if (customizable != null)
{
customizable.Visibility = Visibility.Collapsed;
}
else
{
Items.Remove(item);
}
}
/// <summary>
/// Overriding to setup state.
/// </summary>
protected override void PrepareContainerForItemOverride(DependencyObject element, object item)
{
base.PrepareContainerForItemOverride(element, item);
var fe = element as FrameworkElement;
if (fe != null && fe != _CustomizeButton)
{
if (FrameworkElement.ContextMenuProperty.IsUnsetValue(fe))
{
fe.SetResourceReference(FrameworkElement.ContextMenuProperty, QuickAccessToolBar.RemoveItemContextMenuKey);
}
// Items can be added directly by client, in which case they go into the customizable list, or
// they can be added internally when user elects to add item to QAT, in which case they do
// not go into the customize list.
if ((bool)fe.GetValue(IsCloneProperty) == false && !(item is Separator))
{
var customizeListWrapper = new CustomizableItem(item);
customizeListWrapper.Visibility = fe.Visibility;
customizeListWrapper.PropertyChanged += HandleCustomizableItemVisibilityChanged;
fe.Bind(VisibilityProperty, customizeListWrapper, "Visibility", BindingMode.TwoWay);
CustomizableItems.Add(customizeListWrapper);
}
}
}
/// <summary>
/// Overriding to ensure proper state.
/// </summary>
protected override void ClearContainerForItemOverride(DependencyObject element, object item)
{
base.ClearContainerForItemOverride(element, item);
var customizable = CustomizableItems.Where(c => c.Item == item).FirstOrDefault();
if (customizable != null)
{
customizable.PropertyChanged -= HandleCustomizableItemVisibilityChanged;
CustomizableItems.Remove(customizable);
}
}
