public override void SetInstance(RectTransform instanceTransform, XmlLayout xmlLayout)
{
base.SetInstance(instanceTransform, xmlLayout);
if (instanceTransform != null)
{
currentListElement = instanceTransform.GetComponent <XmlLayoutList>();
}
}
private void _RemoveListItem(XmlLayoutList list, XmlLayoutListItem item)
{
if (item.xmlElement != null)
{
list.listItems.Remove(item);
list.listElement.RemoveChildElement(item.xmlElement);
}
if (Application.isPlaying)
{
GameObject.Destroy(item.gameObject);
}
else
{
GameObject.DestroyImmediate(item.gameObject);
}
XmlLayoutTimer.AtEndOfFrame(() =>
{
UnityEngine.UI.LayoutRebuilder.ForceRebuildLayoutImmediate(list.rectTransform);
}, list);
}
public override void ParseChildElements(System.Xml.XmlNode xmlNode)
{
if (String.IsNullOrEmpty(currentXmlElement.DataSource))
{
// no data source; no rendering to do here
// I've decided not to log anything here, as this could be desired behaviour (a data source could be set later, for example)
return;
}
var dataSource = currentXmlElement.DataSource;
var xmlLayoutController = currentXmlLayoutInstance.XmlLayoutController;
if (xmlLayoutController == null)
{
return;
}
var viewModelProperty = xmlLayoutController.GetType().GetProperty("viewModel");
if (viewModelProperty == null)
{
Debug.LogWarning("[XmlLayout] Warning: Useage of the <List> element requires the XmlLayoutController to have a view model type defined.");
return;
}
var viewModel = viewModelProperty.GetValue(xmlLayoutController, null);
var listProperty = viewModel.GetType().GetProperty(dataSource);
var listField = viewModel.GetType().GetField(dataSource);
IList list = null;
if (listProperty != null)
{
if (!(listProperty.PropertyType.IsGenericType && listProperty.PropertyType.GetGenericTypeDefinition() == typeof(ObservableList <>)))
{
Debug.LogWarning("[XmlLayout] Warning: Usage of the <List> element requires a property with a type of ObservableList.");
return;
}
list = (IList)listProperty.GetValue(viewModel, XmlLayoutUtilities.BindingFlags, null, null, null);
}
else if (listField != null)
{
if (!(listField.FieldType.IsGenericType && listField.FieldType.GetGenericTypeDefinition() == typeof(ObservableList <>)))
{
Debug.LogWarning("[XmlLayout] Warning: Usage of the <List> element requires a property with a type of ObservableList.");
return;
}
list = (IList)listField.GetValue(viewModel);
}
else
{
Debug.LogWarning("[XmlLayout] Warning: View Model does not contain a field or property for data source '" + dataSource + "'.");
return;
}
var observableList = (IObservableList)list;
if (list == null || observableList == null)
{
// no data yet
return;
}
var parent = transformToAddChildrenTo.GetComponent <XmlElement>();
if (!parent.attributes.ContainsKey("id"))
{
XmlLayoutTimer.AtEndOfFrame(() => parent.SetAndApplyAttribute("id", observableList.guid), parent, true);
}
var itemTemplate = GetItemTemplate(xmlNode.InnerXml);
var xmlLayoutListComponent = parent.GetComponent <XmlLayoutList>();
if (xmlLayoutListComponent == null)
{
xmlLayoutListComponent = parent.gameObject.AddComponent <XmlLayoutList>();
}
xmlLayoutListComponent.itemTemplate = itemTemplate;
xmlLayoutListComponent.DataSource = dataSource;
xmlLayoutListComponent.baseSiblingIndex = currentXmlElement.transform.GetSiblingIndex();
xmlLayoutListComponent.list = observableList;
xmlLayoutListComponent.isCalculatedList = !listProperty.IsAutoProperty();
xmlLayoutListComponent.itemAnimationDuration = currentXmlElement.attributes.ContainsKey("itemAnimationDuration") ? currentXmlElement.attributes.GetValue <float>("itemAnimationDuration") : 0.25f;
xmlLayoutListComponent.itemShowAnimation = currentXmlElement.attributes.ContainsKey("itemShowAnimation") ? currentXmlElement.attributes.GetValue <string>("itemShowAnimation") : "None";
xmlLayoutListComponent.itemHideAnimation = currentXmlElement.attributes.ContainsKey("itemHideAnimation") ? currentXmlElement.attributes.GetValue <string>("itemHideAnimation") : "None";
currentListElement = xmlLayoutListComponent;
if (ListElements.ContainsKey(observableList.guid))
{
ListElements[observableList.guid] = xmlLayoutListComponent;
}
else
{
ListElements.Add(observableList.guid, xmlLayoutListComponent);
}
// Render the list items as per the view model
for (var x = 0; x < list.Count; x++)
{
RenderListItem(list[x], dataSource, itemTemplate, observableList);
}
}
