private void Children_CollectionChanged(object sender, System.Collections.Specialized.NotifyCollectionChangedEventArgs e)
{
switch (e.Action)
{
case System.Collections.Specialized.NotifyCollectionChangedAction.Add:
e.NewItems.ForEach(x =>
{
var comp = (DashboardComponent)x;
DashboardViewBase elem = GetNewViewFor(comp);
if (elem == null)
{
return; //DEBUG
}
viewBindings.Add(comp, elem);
AddView(elem);
});
break;
case System.Collections.Specialized.NotifyCollectionChangedAction.Remove:
e.OldItems.ForEach(x =>
{
var comp = (DashboardComponent)x;
RemoveView(viewBindings[comp]);
viewBindings.Remove(comp);
});
break;
case System.Collections.Specialized.NotifyCollectionChangedAction.Replace:
e.OldItems.ForEach(x =>
{
var comp = (DashboardComponent)x;
RemoveView(viewBindings[comp]);
viewBindings.Remove(comp);
});
e.NewItems.ForEach(x =>
{
var comp = (DashboardComponent)x;
DashboardViewBase elem = GetNewViewFor(comp);
viewBindings.Add(comp, elem);
AddView(elem);
});
break;
case System.Collections.Specialized.NotifyCollectionChangedAction.Reset:
viewBindings.Clear();
ClearView();
Component.Children.ForEach(x =>
{
DashboardViewBase elem = GetNewViewFor(x);
if (elem == null)
{
return; //DEBUG
}
viewBindings.Add(x, elem);
AddView(elem);
});
break;
}
}
protected override void AddView(DashboardViewBase element)
{
var tab = new TabItem();
tab.Tag = element;
tab.Content = element;
Binding binding = new Binding("Name");
binding.Source = element.DataContext;
tab.SetBinding(TabItem.HeaderProperty, binding);
root.Items.Add(tab);
}
protected override void RemoveView(DashboardViewBase element)
{
for (int i = root.Items.Count - 1; i >= 0; i--)
{
if (root.Items[i] is TabItem item)
{
if (item.Tag == element)
{
root.Items.RemoveAt(i);
}
}
}
}
protected override void RemoveView(DashboardViewBase element)
{
root.Children.Remove(element);
}
protected override void AddView(DashboardViewBase element)
{
root.Children.Add(element);
}
protected abstract void RemoveView(DashboardViewBase element);
protected abstract void AddView(DashboardViewBase element);
