void InsertInternal(int index, XamlDesignItem item)
{
property.CollectionElements.Insert(index, item.XamlObject);
if (CollectionChanged != null)
{
CollectionChanged(this, new NotifyCollectionChangedEventArgs(NotifyCollectionChangedAction.Add, item, index));
}
NameScopeHelper.NameChanged(item.XamlObject, null, item.Name);
}
void RemoveInternal(int index, XamlDesignItem item)
{
NameScopeHelper.NameChanged(item.XamlObject, item.Name, null);
Debug.Assert(property.CollectionElements[index] == item.XamlObject);
property.CollectionElements.RemoveAt(index);
if (CollectionChanged != null)
{
CollectionChanged(this, new NotifyCollectionChangedEventArgs(NotifyCollectionChangedAction.Remove, item, index));
}
}
/// <summary>
/// Find's the Root XamlObject (real Root, or Root Object in Namescope)
/// </summary>
/// <param name="item"></param>
/// <param name="onlyFromSameNamescope"></param>
/// <returns></returns>
internal static XamlObject GetRootXamlObject(XamlObject item, bool onlyFromSameNamescope = false)
{
var root = item;
while (root.ParentObject != null)
{
if (onlyFromSameNamescope && NameScopeHelper.GetNameScopeFromObject(root) != NameScopeHelper.GetNameScopeFromObject(root.ParentObject))
{
break;
}
root = root.ParentObject;
}
return(root);
}
/// <summary>
/// Get's all Child XamlObject Instances
/// </summary>
/// <param name="item"></param>
/// <param name="onlyFromSameNamescope"></param>
/// <returns></returns>
private IEnumerable <XamlObject> GetAllChildXamlObjects(XamlObject item, bool onlyFromSameNamescope = false)
{
foreach (var prop in item.Properties)
{
if (prop.PropertyValue as XamlObject != null)
{
if (!onlyFromSameNamescope || NameScopeHelper.GetNameScopeFromObject(item) ==
NameScopeHelper.GetNameScopeFromObject(prop.PropertyValue as XamlObject))
{
yield return(prop.PropertyValue as XamlObject);
}
foreach (var i in GetAllChildXamlObjects(prop.PropertyValue as XamlObject))
{
if (!onlyFromSameNamescope || NameScopeHelper.GetNameScopeFromObject(item) ==
NameScopeHelper.GetNameScopeFromObject(i))
{
yield return(i);
}
}
}
if (prop.IsCollection)
{
foreach (var collectionElement in prop.CollectionElements)
{
if (collectionElement as XamlObject != null)
{
if (!onlyFromSameNamescope || NameScopeHelper.GetNameScopeFromObject(item) ==
NameScopeHelper.GetNameScopeFromObject(collectionElement as XamlObject))
{
yield return(collectionElement as XamlObject);
}
foreach (var i in GetAllChildXamlObjects(collectionElement as XamlObject))
{
if (!onlyFromSameNamescope ||
NameScopeHelper.GetNameScopeFromObject(item) ==
NameScopeHelper.GetNameScopeFromObject(i))
{
yield return(i);
}
}
}
}
}
}
}
private static void AddToNamescopeRecursive(XamlDesignItem designItem)
{
NameScopeHelper.NameChanged(designItem.XamlObject, null, designItem.Name);
foreach (var p in designItem.Properties)
{
if (p.Value != null)
{
AddToNamescopeRecursive((XamlDesignItem)p.Value);
}
else if (p.IsCollection && p.CollectionElements != null)
{
foreach (var c in p.CollectionElements)
{
AddToNamescopeRecursive((XamlDesignItem)c);
}
}
}
}
/// <summary>
/// registers components from an existing XAML tree
/// </summary>
internal XamlDesignItem RegisterXamlComponentRecursive(XamlObject obj)
{
if (obj == null)
{
return(null);
}
foreach (XamlProperty prop in obj.Properties)
{
RegisterXamlComponentRecursive(prop.PropertyValue as XamlObject);
foreach (XamlPropertyValue val in prop.CollectionElements)
{
RegisterXamlComponentRecursive(val as XamlObject);
}
}
XamlDesignItem site = new XamlDesignItem(obj, _context);
_context.Services.ExtensionManager.ApplyDesignItemInitializers(site);
_sites.Add(site.Component, site);
if (ComponentRegistered != null)
{
ComponentRegistered(this, new DesignItemEventArgs(site));
}
if (_context.RootItem != null && !string.IsNullOrEmpty(site.Name))
{
var nameScope = NameScopeHelper.GetNameScopeFromObject(((XamlDesignItem)_context.RootItem).XamlObject);
if (nameScope != null)
{
// The object will be a part of the RootItem namescope, remove local namescope if set
NameScopeHelper.ClearNameScopeProperty(obj.Instance);
string newName = site.Name;
if (nameScope.FindName(newName) != null)
{
int copyIndex = newName.LastIndexOf("_Copy", StringComparison.Ordinal);
if (copyIndex < 0)
{
newName += "_Copy";
}
else if (!newName.EndsWith("_Copy", StringComparison.Ordinal))
{
string copyEnd = newName.Substring(copyIndex + "_Copy".Length);
int copyEndValue;
if (Int32.TryParse(copyEnd, out copyEndValue))
{
newName = newName.Remove(copyIndex + "_Copy".Length);
}
else
{
newName += "_Copy";
}
}
int i = 1;
string newNameTemplate = newName;
while (nameScope.FindName(newName) != null)
{
newName = newNameTemplate + i++;
}
site.Name = newName;
}
nameScope.RegisterName(newName, obj.Instance);
}
}
return(site);
}
