internal void RefreshUnboundItemProperty(object component)
{
if (m_unboundItems.Count <= 0 || (component == null))
{
return;
}
var unboundDataItem = UnboundDataItem.GetUnboundDataItem(component);
if (unboundDataItem == null)
{
return;
}
var dataItem = unboundDataItem.DataItem;
if ((dataItem == null) || (dataItem is EmptyDataItem))
{
return;
}
State state;
if (m_dataItems.TryGetValue(dataItem, out state) && (state.Refreshing || state.Suspended))
{
return;
}
m_dataItems.Add(dataItem, new State(true, false));
try
{
foreach (var item in m_unboundItems)
{
item.Refresh(unboundDataItem);
}
}
finally
{
state = m_dataItems[dataItem];
if (state.Suspended)
{
m_dataItems[dataItem] = new State(false, true);
}
else
{
m_dataItems.Remove(dataItem);
}
}
}
internal void ResumeUnboundItemPropertyChanged(object component)
{
if (component == null)
{
return;
}
var unboundDataItem = UnboundDataItem.GetUnboundDataItem(component);
if (unboundDataItem == null)
{
return;
}
var dataItem = unboundDataItem.DataItem;
if ((dataItem == null) || (dataItem is EmptyDataItem))
{
return;
}
State state;
if (!m_dataItems.TryGetValue(dataItem, out state) || !state.Suspended)
{
Debug.Fail("The item is not suspended.");
return;
}
if (state.Refreshing)
{
m_dataItems[dataItem] = new State(true, false);
}
else
{
m_dataItems.Remove(dataItem);
this.RefreshUnboundItemProperty(dataItem);
}
}
internal void SuspendUnboundItemPropertyChanged(object component)
{
if (component == null)
{
return;
}
var unboundDataItem = UnboundDataItem.GetUnboundDataItem(component);
if (unboundDataItem == null)
{
return;
}
var dataItem = unboundDataItem.DataItem;
if ((dataItem == null) || (dataItem is EmptyDataItem))
{
return;
}
State state;
bool refreshing = false;
if (m_dataItems.TryGetValue(dataItem, out state))
{
if (state.Suspended)
{
return;
}
refreshing = state.Refreshing;
}
m_dataItems[dataItem] = new State(refreshing, true);
}