public virtual Color? GetItemBackgroundColor(AdaptiveSelector selector, object selectorIdentifier, object item, bool isSelected)
{
var group = GetItemGroup(selector, selectorIdentifier, item);
if (group != null)
return group.Color;
return null;
}
public override Color? GetItemBackgroundColor(AdaptiveSelector selector, object selectorIdentifier, object item, bool isSelected)
{
if (object.Equals(ModeOneItem, item))
return ModeOneColor;
if (object.Equals(ModeTwoItem, item))
return ModeTwoColor;
return base.GetItemBackgroundColor(selector, selectorIdentifier, item, isSelected);
}
public override void OnItemUnselected(AdaptiveSelector selector, object selectorIdentifier, object unselectedItem)
{
if(object.Equals(ModeOneItem, unselectedItem))
{
ModeOneItem = null;
}
else if(object.Equals(ModeTwoItem, unselectedItem))
{
ModeTwoItem = null;
}
base.OnItemUnselected(selector, selectorIdentifier, unselectedItem);
}
public override IReadOnlyList<IUserAction> GetAvailableUserAction(AdaptiveSelector selector, object selectorIdentifier, object item)
{
var result = new List<IUserAction>();
var ua = new UserAction("set Mode One", (x) =>
{
selector.UnselectItem(ModeOneItem);
ModeOneItem = item;
selector.EnsureItemSelected(item);
});
if(!object.Equals(item, ModeOneItem))
result.Add(ua);
ua = new UserAction("set Mode Two", (x) =>
{
selector.UnselectItem(ModeTwoItem);
ModeTwoItem = item;
selector.EnsureItemSelected(item);
});
if (!object.Equals(item, ModeTwoItem))
result.Add(ua);
ua = new UserAction("swap", (x) =>
{
var one = ModeOneItem;
var two = ModeTwoItem;
selector.UnselectItem(one);
selector.UnselectItem(two);
ModeOneItem = two;
ModeTwoItem = one;
selector.EnsureItemSelected(ModeOneItem);
selector.EnsureItemSelected(ModeTwoItem);
});
if(ModeOneItem != null && ModeTwoItem != null)
result.Add(ua);
return result;
}
// this behavior allows up to two selected items to have custom mode (Mode 1 and Mode 2).
// different modes will be distinguished by colour (Red and Blue)
// First selected item wil lalways be mode 1, second will always be mode 2 (if mode from first item have not been removed)
public override void OnItemSelected(AdaptiveSelector selector, object selectorIdentifier, object selectedItem)
{
base.OnItemSelected(selector, selectorIdentifier, selectedItem);
if (object.Equals(ModeOneItem, selectedItem) || object.Equals(ModeTwoItem, selectedItem))
return;
if (ModeOneItem == null)
{
ModeOneItem = selectedItem;
}
else if(ModeTwoItem == null)
{
ModeTwoItem = selectedItem;
}
}
public virtual Visibility GetSelectionMarkersVisibility(AdaptiveSelector selector, object selectorIdentifier, int allItemsCount, int selectedItemsCount)
{
// 0 or 1 item, don't show markers
if (allItemsCount < 2)
{
return Visibility.Collapsed;
}
// not all items selected, show markers
if (selectedItemsCount < allItemsCount)
{
return Visibility.Visible;
}
else // all items selected, don't show markers
{
return Visibility.Collapsed;
}
}
public virtual void OnItemUnselected(AdaptiveSelector selector, object selectorIdentifier, object unselectedItem)
{ }
public virtual IAdaptiveSelectorItemGroup GetItemGroup(AdaptiveSelector selector, object selectorIdentifier, object item)
{
return null;
}
public virtual IReadOnlyList<IUserAction> GetAvailableUserAction(AdaptiveSelector selector, object selectorIdentifier, object item)
{
return new IUserAction[0];
}