/// <summary>
/// Constructs a <see cref="IBidirectionalList{T}"/> given <paramref name="values"/>.
/// </summary>
/// <param name="values"></param>
/// <param name="onAdded"></param>
/// <param name="onRemoved"></param>
/// <param name="onAdding"></param>
/// <param name="onRemoving"></param>
/// <inheritdoc />
public BidirectionalList(IEnumerable <T> values
, BidirectionalListItemCallback <T> onAdded
, BidirectionalListItemCallback <T> onRemoved
, BidirectionalListItemCallback <T> onAdding = null
, BidirectionalListItemCallback <T> onRemoving = null)
: this(values.ToList(), onAdded, onRemoved, onAdding, onRemoving)
{
}
// ReSharper disable once RedundantEmptyObjectOrCollectionInitializer
/// <summary>
/// Construct a <see cref="IBidirectionalList{T}"/> given the set of
/// <see cref="BidirectionalListItemCallback{T}"/>.
/// </summary>
/// <param name="onAdded"></param>
/// <param name="onRemoved"></param>
/// <param name="onAdding"></param>
/// <param name="onRemoving"></param>
/// <inheritdoc />
public BidirectionalList(BidirectionalListItemCallback <T> onAdded
, BidirectionalListItemCallback <T> onRemoved
, BidirectionalListItemCallback <T> onAdding = null
, BidirectionalListItemCallback <T> onRemoving = null)
: this(new List <T> {
}, onAdded, onRemoved, onAdding, onRemoving)
{
}
protected override void ConnectCallbacks(IBidirectionalList <T> list
, BidirectionalListItemCallback <T> onCallingBack, BidirectionalListItemCallback <T> onCalledBack)
{
Assert.NotNull(onCallingBack);
Assert.NotNull(onCalledBack);
list.RemovingItem += onCallingBack;
list.RemovedItem += onCalledBack;
}
/// <summary>
/// Constructs a <see cref="IBidirectionalList{T}"/> given <paramref name="values"/>.
/// </summary>
/// <param name="values"></param>
/// <param name="onAdded"></param>
/// <param name="onRemoved"></param>
/// <param name="onAdding"></param>
/// <param name="onRemoving"></param>
public BidirectionalList(IList <T> values
, BidirectionalListItemCallback <T> onAdded
, BidirectionalListItemCallback <T> onRemoved
, BidirectionalListItemCallback <T> onAdding = null
, BidirectionalListItemCallback <T> onRemoving = null)
{
var defaultItemCallback = DefaultItemCallback;
// Connect the Bidirectional Item callback conditionally when there is a Callback.
void ConnectBidiCallback(BidirectionalListItemCallback <T> callback
, Action <BidirectionalList <T>, BidirectionalListItemCallback <T> > onConnect)
{
if (callback != null)
{
onConnect.Invoke(this, callback);
}
}
ConnectBidiCallback(onAdded, (x, callback) => x.AddedItem += callback);
ConnectBidiCallback(onAdding, (x, callback) => x.AddingItem += callback);
ConnectBidiCallback(onRemoved, (x, callback) => x.RemovedItem += callback);
ConnectBidiCallback(onRemoving, (x, callback) => x.RemovingItem += callback);
// Effectively we are also Adding the items to the initial Collection instance.
foreach (var x in values)
{
AddingItem?.Invoke(x);
}
Collection = values;
foreach (var x in values)
{
AddedItem?.Invoke(x);
}
}
/// <summary>
/// Constructs a <see cref="IBidirectionalList{T}"/> given <paramref name="values"/>.
/// </summary>
/// <param name="values"></param>
/// <param name="onAdded"></param>
/// <param name="onRemoved"></param>
/// <param name="onAdding"></param>
/// <param name="onRemoving"></param>
public BidirectionalList(IList <T> values
, BidirectionalListItemCallback <T> onAdded = null
, BidirectionalListItemCallback <T> onRemoved = null
, BidirectionalListItemCallback <T> onAdding = null
, BidirectionalListItemCallback <T> onRemoving = null)
{
AddedItem += onAdded ?? DefaultCallback();
AddingItem += onAdding ?? DefaultCallback();
RemovedItem += onRemoved ?? DefaultCallback();
RemovingItem += onRemoving ?? DefaultCallback();
// Effectively we are also Adding the items to the initial Collection instance.
foreach (var x in values)
{
AddingItem?.Invoke(x);
}
_collection = values;
foreach (var x in values)
{
AddedItem?.Invoke(x);
}
}
protected override IBidirectionalList <int> CreateBidirectionalList(Func <IEnumerable <int> > getValues
, BidirectionalListItemCallback <int> beforeCallback, BidirectionalListItemCallback <int> afterCallback)
=> getValues().ToBidirectionalList(onAdded: null, onRemoved: afterCallback
, onAdding: null, onRemoving: beforeCallback);
/// <summary>
///
/// </summary>
/// <param name="getValues"></param>
/// <param name="beforeCallback"></param>
/// <param name="afterCallback"></param>
/// <returns></returns>
protected abstract IBidirectionalList <T> CreateBidirectionalList(Func <IEnumerable <T> > getValues
, BidirectionalListItemCallback <T> beforeCallback, BidirectionalListItemCallback <T> afterCallback);
protected override IBidirectionalList <T> CreateBidirectionalList(Func <IEnumerable <T> > getValues
, BidirectionalListItemCallback <T> beforeCallback, BidirectionalListItemCallback <T> afterCallback)
=> new BidirectionalList <T>(getValues(), onRemoved: afterCallback, onRemoving: beforeCallback);
/// <summary>
/// Returns a <see cref="BidirectionalList{T}"/> corresponding to the
/// <paramref name="values"/>. Provides <paramref name="onAdded"/>,
/// <paramref name="onRemoved"/>, <paramref name="onAdding"/>, and
/// <paramref name="onRemoving"/> callbacks.
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="values"></param>
/// <param name="onAdded"></param>
/// <param name="onRemoved"></param>
/// <param name="onAdding"></param>
/// <param name="onRemoving"></param>
/// <returns></returns>
public static BidirectionalList <T> ToBidirectionalList <T>(this IList <T> values
, BidirectionalListItemCallback <T> onAdded, BidirectionalListItemCallback <T> onRemoved
, BidirectionalListItemCallback <T> onAdding, BidirectionalListItemCallback <T> onRemoving)
=> new BidirectionalList <T>(values, onAdded, onRemoved, onAdding, onRemoving);
/// <summary>
/// Returns a <see cref="BidirectionalList{T}"/> corresponding to the
/// <paramref name="values"/>. Provides <paramref name="onAdded"/> and
/// <paramref name="onRemoved"/> callbacks.
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="values"></param>
/// <param name="onAdded"></param>
/// <param name="onRemoved"></param>
/// <returns></returns>
public static BidirectionalList <T> ToBidirectionalList <T>(this IEnumerable <T> values
, BidirectionalListItemCallback <T> onAdded, BidirectionalListItemCallback <T> onRemoved)
=> new BidirectionalList <T>(values, onAdded, onRemoved);
