/// <summary>
/// Receiving a notification about child being changed
/// </summary>
/// <param name="aObject">
/// Child of this object has changed <see cref="IObserveable"/>
/// </param>
/// <param name="aIdx">
/// Path of the changed child <see cref="System.Int32"/>
/// </param>
public virtual void ChildChanged(IObserveable aObject, int[] aIdx)
{
if (aObject == this)
{
return;
}
}
/// <summary>
/// Receiving a notification about child being changed
/// </summary>
/// <param name="aObject">
/// Called when observeable child changes <see cref="IObserveable"/>
/// </param>
/// <param name="aIdx">
/// Path index to child <see cref="System.Int32"/>
/// </param>
public virtual void ChildChanged(IObserveable aObject, int[] aIdx)
{
// Notify all parents about this change
if (parents != null)
{
foreach (WeakReference wr in parents)
{
if (wr != null)
{
if (wr.Target != null)
{
if (wr.Target is IObserveable)
{
if (wr.Target is IObserveableList)
{
(wr.Target as IObserveableList).ListChildChanged(aObject, EListAction.Change, null);
}
else
if (wr.Target is IObserveable)
{
(wr.Target as IObserveable).ChildChanged(aObject, aIdx);
}
}
}
}
}
}
}
/// <summary>
/// Assigns data or disqualifies validity if needed
/// </summary>
public void CheckControl()
{
if (destroyed == true)
{
return;
}
if (Activated == false)
{
return;
}
if (checkup == true)
{
return;
}
if (IsControllingWidget == false)
{
return;
}
checkup = true;
bool canuse = adaptor.IsValidMapping;
IObserveable observer = null;
IObserveable boundaryobserver = null;
if (Adaptor != null)
{
observer = DataSourceController.GetInfoFor(Adaptor.FinalTarget);
}
if (Adaptor != null)
{
boundaryobserver = DataSourceController.GetInfoFor(BoundaryAdaptor.FinalTarget);
}
if ((canuse == true) && (Control != null))
{
if (Control is IChangeableControl)
{
if (observer != null)
{
if (observer.CanGet == true)
{
InvokeAdapteeDataChange((Control as IChangeableControl), Adaptor.FinalTarget);
}
}
if (boundaryobserver != null)
{
if (boundaryobserver.CanGet == true)
{
if (TypeValidator.IsCompatible(Control.GetType(), typeof(IBoundedContainer)) == true)
{
InvokeBoundaryDataChange((Control as IBoundedContainer), this);
}
}
}
}
}
observer = null;
boundaryobserver = null;
checkup = false;
}
/// <summary>
/// Adds object to registry or connects events with Adaptor if object is
/// supporting interface IObserveable
///
/// If DataSource is IObserveable then it will be bypassing registry all the time
/// </summary>
public static bool Add(object aDataSource, IAdaptor aAdaptor, EApplyMethod aInstant)
{
if (aDataSource is IDataAdaptor)
{
return(Add((aDataSource as IDataAdaptor).FinalTarget, aAdaptor, aInstant));
}
if (aDataSource is IObserveable)
{
// If target is IObserveable then there's no need to enter it into the registry
// it can handle all on its own, so connection is made to him directly
if (aAdaptor.IsBoundaryAdaptor == false)
{
(aDataSource as IObserveable).PostRequested += aAdaptor.PostMethod;
(aDataSource as IObserveable).DataChanged += aAdaptor.AdapteeDataChanged;
}
else
{
(aDataSource as IObserveable).DataChanged += aAdaptor.BoundaryAdapteeDataChanged;
}
}
else
{
IObserveable ob = GetInfoFor(aDataSource);
if (ob != null)
{
DataSourceInfo ds = (DataSourceInfo)ob;
if (aAdaptor.IsBoundaryAdaptor == false)
{
ds.PostRequested += aAdaptor.PostMethod;
ds.DataChanged += aAdaptor.AdapteeDataChanged;
}
else
{
ds.DataChanged += aAdaptor.BoundaryAdapteeDataChanged;
}
// Count direct adaptors only, ignore indirect
if ((aAdaptor.Target is IAdaptor) == false)
{
ds.RefCount += 1;
}
ds = null;
return(true);
}
DataSourceInfo nds = new DataSourceInfo(aDataSource, aInstant);
if (aAdaptor.IsBoundaryAdaptor == false)
{
nds.PostRequested += aAdaptor.PostMethod;
nds.DataChanged += aAdaptor.AdapteeDataChanged;
}
else
{
nds.DataChanged += aAdaptor.BoundaryAdapteeDataChanged;
}
datasources.Add(nds);
nds = null;
}
return(true);
}
/// <summary>
/// Sets object state to changed and calls for update of controls after posting stops
/// </summary>
public static void CallChangedFor(object aObj)
{
IObserveable observer = GetInfoFor(aObj);
if (observer == null)
{
return;
}
observer.HasChanged = true;
}
/// <summary>
/// Checks if Get request is possible in this moment
/// </summary>
/// <param name="aState">
/// State <see cref="EObserveableState"/>
/// </param>
/// <returns>
/// true if successful <see cref="System.Boolean"/>
/// </returns>
public bool SetState(EObserveableState aState)
{
IObserveable observer = DataSourceController.GetInfoFor(adaptor.FinalTarget);
if (observer == null)
{
return(false);
}
bool res = observer.SetState(aState);
observer = null;
return(res);
}
protected void Debug()
{
Console.WriteLine("Setting cursor DataSource count: " + DataSourceController.Count);
IObserveable observer = null;
for (int i = 0; i < DataSourceController.Count; i++)
{
observer = DataSourceController.GetInfo(i);
if (observer != null)
{
//Console.WriteLine (observer);
if (observer is System.Data.Bindings.DataSourceInfo)
{
DataSourceInfo DS = (observer as System.Data.Bindings.DataSourceInfo);
//Console.WriteLine ((observer as System.Data.Bindings.DataSourceInfo).Target);
if (DS.Target is Person)
{
Person p = (Person)(observer as System.Data.Bindings.DataSourceInfo).Target;
Console.WriteLine(p.Name + " " + p.Surname + " RefCount:" + DS.RefCount);
}
}
}
}
}
