private bool Draw(FoldoutItem foldout)
{
if (null != foldout.onBeginDrawFoldout)
{
foldout.onBeginDrawFoldout.Invoke(foldout.data);
}
var expanded = EditorGUILayout.Foldout(
foldout.isExpanded,
foldout.name
);
if (null != foldout.onEndDrawFoldout)
{
foldout.onEndDrawFoldout.Invoke(foldout.data);
}
if (expanded != foldout.isExpanded)
{
Expand(foldout, expanded);
}
if (foldout.isExpanded)
{
foldout.onDraw?.Invoke(foldout.data);
}
return(foldout.isExpanded);
}
private void Expand(FoldoutItem foldout, bool expanded)
{
if (expanded != foldout.isExpanded)
{
if (expanded)
{
if (exclusive)
{
foreach (var f in foldouts.Values)
{
if (f != foldout)
{
Expand(f, false);
}
}
}
foldout.isExpanded = expanded;
foldout.onShow?.Invoke(foldout.data);
}
else
{
foldout.isExpanded = false;
foldout.onHide?.Invoke(foldout.data);
}
}
}
public FoldoutItem Add(string name, T data, Action <T> drawCallback, Action <T> onHide = null, Action <T> onBeginDrawFoldout = null, Action <T> onEndDrawFoldout = null, Action <T> onShow = null)
{
var foldout = new FoldoutItem()
{
name = name,
data = data,
onDraw = drawCallback,
onShow = onShow,
onHide = onHide,
onBeginDrawFoldout = onBeginDrawFoldout,
onEndDrawFoldout = onEndDrawFoldout
};
foldouts[name] = foldout;
foldoutsByData[data] = foldout;
return(foldout);
}