protected override void ChildAdded(DisplayListMember child)
{
//Debug.Log("GroupBase - ChildAdded: " + child);
if (HasEventListener("childrenChanged"))
{
DispatchEvent(new Event("childrenChanged"));
}
if (HasEventListener(ChildExistenceChangedEvent.CHILD_ADD))
{
var cece = new ChildExistenceChangedEvent(ChildExistenceChangedEvent.CHILD_ADD)
{
RelatedObject = child
};
DispatchEvent(cece);
}
/*if (child is ModalOverlay)
* Debug.Log("Added: " + child);*/
if (child.HasEventListener(FrameworkEvent.ADD))
{
child.DispatchEvent(new FrameworkEvent(FrameworkEvent.ADD));
}
base.ChildAdded(child);
}
private void ChildAddHandler(Event e)
{
ChildExistenceChangedEvent cece = (ChildExistenceChangedEvent)e;
var child = cece.RelatedObject;
var index = GetChildIndex(child);
//Debug.Log("ChildAddHandler: " + child);
if (child is InteractiveComponent)
{
var uiChild = (InteractiveComponent)child;
// ViewStack creates all of its children initially invisible.
// They are made as they become the selected child.
uiChild.Visible = false;
//Debug.Log("Set invisible: " + uiChild);
}
//if (child is INavigatorContent)
//{
// child.addEventListener("labelChanged", navigatorChildChangedHandler);
// child.addEventListener("iconChanged", navigatorChildChangedHandler);
//}
// If we just created the first child and no selected index has
// been proposed, then propose this child to be selected.
if (NumberOfChildren == 1 && proposedSelectedIndex == -1)
{
SelectedIndex = 0;
}
else if (index <= _selectedIndex && NumberOfChildren > 1 && proposedSelectedIndex == -1)
{
SelectedIndex++;
}
}
private void ChildRemoveHandler(Event e)
{
ChildExistenceChangedEvent cece = (ChildExistenceChangedEvent)e;
var child = cece.RelatedObject;
var index = GetChildIndex(child);
//if (child is INavigatorContent)
//{
// child.removeEventListener("labelChanged", navigatorChildChangedHandler);
// child.removeEventListener("iconChanged", navigatorChildChangedHandler);
//}
// Handle the simple case.
if (index > _selectedIndex)
{
return;
}
var currentSelectedIndex = _selectedIndex;
// This matches one of the two conditions:
// 1. a view before the current was deleted, or
// 2. the current view was deleted and it was also
// at the end of the stack.
// In both cases, we need to decrement selectedIndex.
if (index < currentSelectedIndex ||
currentSelectedIndex == (NumberOfChildren - 1))
{
// If the selectedIndex was already 0, it should go to -1.
// -1 is a special value; in order to avoid runtime errors
// in various methods, we need to skip the range checking in
// commitSelectedIndex() and set _selectedIndex explicitly here.
if (currentSelectedIndex == 0)
{
SelectedIndex = -1;
_selectedIndex = -1;
}
else
{
SelectedIndex--;
}
}
else if (index == currentSelectedIndex)
{
// If we're deleting the currentSelectedIndex and there is another
// child after it, it will become the new selected child so we
// need to make sure it is instantiated.
_needToInstantiateSelectedChild = true;
InvalidateProperties();
}
}
protected override void RemovingChild(DisplayListMember child)
{
base.RemovingChild(child);
if (child.HasEventListener(FrameworkEvent.REMOVE))
{
child.DispatchEvent(new FrameworkEvent(FrameworkEvent.REMOVE));
}
if (HasEventListener(ChildExistenceChangedEvent.CHILD_REMOVE))
{
var cece = new ChildExistenceChangedEvent(ChildExistenceChangedEvent.CHILD_REMOVE)
{
RelatedObject = child
};
DispatchEvent(cece);
}
}
