// From Container Base class
/// <summary>
/// Adds a child view to this view.
/// </summary>
/// <seealso cref="Container.Add" />
/// <since_tizen> 4 </since_tizen>
public override void Add(View child)
{
bool hasLayout = (layout != null);
if (null == child)
{
Tizen.Log.Fatal("NUI", "Child is null");
return;
}
Container oldParent = child.GetParent();
if (oldParent != this)
{
// If child already has a parent then re-parent child
if (oldParent != null)
{
if (child.Layout != null)
{
child.Layout.SetReplaceFlag();
}
oldParent.Remove(child);
}
child.InternalParent = this;
LayoutCount += child.LayoutCount;
Interop.Actor.Add(SwigCPtr, View.getCPtr(child));
if (NDalicPINVOKE.SWIGPendingException.Pending)
{
throw NDalicPINVOKE.SWIGPendingException.Retrieve();
}
Children.Add(child);
if (ChildAdded != null)
{
ChildAddedEventArgs e = new ChildAddedEventArgs
{
Added = child
};
ChildAdded(this, e);
}
AddChildBindableObject(child);
}
}
/// <summary>
/// Removes a child view from this View. If the view was not a child of this view, this is a no-op.
/// </summary>
/// <seealso cref="Container.Remove" />
/// <since_tizen> 4 </since_tizen>
public override void Remove(View child)
{
if (!child || child.GetParent() == null) // Early out if child null.
{
return;
}
bool hasLayout = (_layout != null);
// If View has a layout then do a deferred child removal
// Actual child removal is performed by the layouting system so
// transitions can be completed.
if (hasLayout)
{
(_layout as LayoutGroup)?.RemoveChildFromLayoutGroup(child);
}
RemoveChild(child);
}
/// <summary>
/// Removes a child view from this View. If the view was not a child of this view, this is a no-op.
/// </summary>
/// <seealso cref="Container.Remove" />
/// <since_tizen> 4 </since_tizen>
/// <exception cref="InvalidOperationException">Thrown when deleting a view that is not a child of this view</exception>
public override void Remove(View child)
{
if (child == null || child.GetParent() == null) // Early out if child null.
{
return;
}
if (child.Parent != this)
{
throw new System.InvalidOperationException("You have deleted a view that is not a child of this view.");
}
bool hasLayout = (layout != null);
// If View has a layout then do a deferred child removal
// Actual child removal is performed by the layouting system so
// transitions can be completed.
if (hasLayout)
{
(layout as LayoutGroup)?.RemoveChildFromLayoutGroup(child);
}
RemoveChild(child);
}