private void LazyLoadItems(List items)
{
_data = new IdleData();
_data.Items = items;
_data.NumItems = 0;
_data.NumLoaded = 0;
_data.ListStore = _store;
_data.LoadState = Controls.State.Started;
_data.LoadId = Idle.Add(new IdleHandler(LoadItems));
}
private bool LoadItems()
{
IdleData id = _data;
CellBase obj;
TreeIter iter;
// Make sure we're in the right state
var isLoading = (id.LoadState == Controls.State.Started) ||
(id.LoadState == Controls.State.Loading);
if (!isLoading)
{
id.LoadState = Controls.State.Completed;
return(false);
}
// No items
if (id.Items.Count == 0)
{
id.LoadState = Controls.State.Completed;
return(false);
}
// First run
if (id.NumItems == 0)
{
id.NumItems = id.Items.Count;
id.NumLoaded = 0;
id.LoadState = Controls.State.Loading;
}
// Get the item in the list at pos n_loaded
obj = id.Items[id.NumLoaded] as CellBase;
// Append the row to the store
iter = id.ListStore.AppendValues(obj);
// Fill in the row at position n_loaded
id.ListStore.SetValue(iter, 0, obj);
id.NumLoaded += 1;
// Update UI with every item
UpdateItem(obj);
// We loaded everything, so we can change state and remove the idle callback function
if (id.NumLoaded == id.NumItems)
{
id.LoadState = Controls.State.Completed;
id.NumLoaded = 0;
id.NumItems = 0;
id.Items = null;
CleanupLoadItems();
return(false);
}
else
{
return(true);
}
}
