private VisualElement CloneSetupRecursively(VisualElementAsset root, Dictionary <int, List <VisualElementAsset> > idToChildren, CreationContext context)
{
VisualElement ve = root.Create(context);
// context.target is the created templateContainer
if (root.id == context.visualTreeAsset.contentContainerId)
{
if (context.target is TemplateContainer)
{
((TemplateContainer)context.target).SetContentContainer(ve);
}
else
{
Debug.LogError("Trying to clone a VisualTreeAsset with a custom content container into a element which is not a template container");
}
}
// if the current element had a slot-name attribute, put it in the resulting slot mapping
string slotName;
if (context.slotInsertionPoints != null && TryGetSlotInsertionPoint(root.id, out slotName))
{
context.slotInsertionPoints.Add(slotName, ve);
}
if (root.classes != null)
{
for (int i = 0; i < root.classes.Length; i++)
{
ve.AddToClassList(root.classes[i]);
}
}
if (root.ruleIndex != -1)
{
if (inlineSheet == null)
{
Debug.LogWarning("VisualElementAsset has a RuleIndex but no inlineStyleSheet");
}
else
{
StyleRule r = inlineSheet.rules[root.ruleIndex];
var stylesData = new VisualElementStylesData(false);
ve.SetInlineStyles(stylesData);
stylesData.ApplyRule(inlineSheet, Int32.MaxValue, r,
StyleSheetCache.GetPropertyIDs(inlineSheet, root.ruleIndex));
}
}
var templateAsset = root as TemplateAsset;
List <VisualElementAsset> children;
if (idToChildren.TryGetValue(root.id, out children))
{
foreach (VisualElementAsset childVea in children)
{
// this will fill the slotInsertionPoints mapping
VisualElement childVe = CloneSetupRecursively(childVea, idToChildren, context);
if (childVe == null)
{
continue;
}
// if the parent is not a template asset, just add the child to whatever hierarchy we currently have
// if ve is a scrollView (with contentViewport as contentContainer), this will go to the right place
if (templateAsset == null)
{
ve.Add(childVe);
continue;
}
int index = templateAsset.slotUsages == null ? -1 : templateAsset.slotUsages.FindIndex(u => u.assetId == childVea.id);
if (index != -1)
{
VisualElement parentSlot;
string key = templateAsset.slotUsages[index].slotName;
Assert.IsFalse(String.IsNullOrEmpty(key), "a lost name should not be null or empty, this probably points to an importer or serialization bug");
if (context.slotInsertionPoints == null || !context.slotInsertionPoints.TryGetValue(key, out parentSlot))
{
Debug.LogErrorFormat("Slot '{0}' was not found. Existing slots: {1}", key, context.slotInsertionPoints == null
? String.Empty
: String.Join(", ", System.Linq.Enumerable.ToArray(context.slotInsertionPoints.Keys)));
ve.Add(childVe);
}
else
{
parentSlot.Add(childVe);
}
}
else
{
ve.Add(childVe);
}
}
}
if (templateAsset != null && context.slotInsertionPoints != null)
{
context.slotInsertionPoints.Clear();
}
return(ve);
}
private VisualElement CloneSetupRecursively(VisualElementAsset root, Dictionary <int, List <VisualElementAsset> > idToChildren, CreationContext context)
{
VisualElement visualElement = root.Create(context);
if (root.id == context.visualTreeAsset.contentContainerId)
{
if (context.target is TemplateContainer)
{
((TemplateContainer)context.target).SetContentContainer(visualElement);
}
else
{
Debug.LogError("Trying to clone a VisualTreeAsset with a custom content container into a element which is not a template container");
}
}
visualElement.name = root.name;
string key;
if (context.slotInsertionPoints != null && this.TryGetSlotInsertionPoint(root.id, out key))
{
context.slotInsertionPoints.Add(key, visualElement);
}
if (root.classes != null)
{
for (int i = 0; i < root.classes.Length; i++)
{
visualElement.AddToClassList(root.classes[i]);
}
}
if (root.ruleIndex != -1)
{
if (this.inlineSheet == null)
{
Debug.LogWarning("VisualElementAsset has a RuleIndex but no inlineStyleSheet");
}
else
{
StyleRule rule = this.inlineSheet.rules[root.ruleIndex];
VisualElementStylesData visualElementStylesData = new VisualElementStylesData(false);
visualElement.SetInlineStyles(visualElementStylesData);
visualElementStylesData.ApplyRule(this.inlineSheet, 2147483647, rule, StyleSheetCache.GetPropertyIDs(this.inlineSheet, root.ruleIndex));
}
}
TemplateAsset templateAsset = root as TemplateAsset;
List <VisualElementAsset> list;
if (idToChildren.TryGetValue(root.id, out list))
{
using (List <VisualElementAsset> .Enumerator enumerator = list.GetEnumerator())
{
while (enumerator.MoveNext())
{
VisualElementAsset childVea = enumerator.Current;
VisualElement visualElement2 = this.CloneSetupRecursively(childVea, idToChildren, context);
if (visualElement2 != null)
{
if (templateAsset == null)
{
visualElement.Add(visualElement2);
}
else
{
int num = (templateAsset.slotUsages != null) ? templateAsset.slotUsages.FindIndex((VisualTreeAsset.SlotUsageEntry u) => u.assetId == childVea.id) : -1;
if (num != -1)
{
string slotName = templateAsset.slotUsages[num].slotName;
Assert.IsFalse(string.IsNullOrEmpty(slotName), "a lost name should not be null or empty, this probably points to an importer or serialization bug");
VisualElement visualElement3;
if (context.slotInsertionPoints == null || !context.slotInsertionPoints.TryGetValue(slotName, out visualElement3))
{
Debug.LogErrorFormat("Slot '{0}' was not found. Existing slots: {1}", new object[]
{
slotName,
(context.slotInsertionPoints != null) ? string.Join(", ", context.slotInsertionPoints.Keys.ToArray <string>()) : string.Empty
});
visualElement.Add(visualElement2);
}
else
{
visualElement3.Add(visualElement2);
}
}
else
{
visualElement.Add(visualElement2);
}
}
}
}
}
}
if (templateAsset != null && context.slotInsertionPoints != null)
{
context.slotInsertionPoints.Clear();
}
return(visualElement);
}