private void _ExtractExpressions(XmlElement element, List <XmlAttribute> expressionAttributes, List <IdViewObject> viewsId)
{
if (ParsingHelper.IsResourceTag(element))
{
//will be processed later so do not touch it for now
return;
}
string id = null;
bool isFragment = ParsingHelper.IsFragmentTag(element);
List <XmlAttribute> bindings = new List <XmlAttribute>();
foreach (XmlAttribute attribute in element.Attributes)
{
if (ParsingHelper.IsXmlOnlyAttribute(attribute))
{
continue;
}
if (ParsingHelper.IsIdAttribute(attribute))
{
if (id != null)
{
throw new Exception("Multiple id for same element");
}
id = attribute.Value;
// add @+id/ to use auto declare mechanism in Android
attribute.Value = "@+id/" + id;
//check isFragment cause we will do a findViewById next and it will not works
if (!isFragment)
{
viewsId.Add(new IdViewObject(element.LocalName, id));
}
}
else if (ParsingHelper.IsCustomAttribute(attribute))
{
bindings.Add(attribute);
}
else if (ParsingHelper.IsAttributeWithExpression(attribute))
{
bindings.Add(attribute);
}
}
if (id == null && bindings.Any())
{
XmlAttribute attribute = new XmlAttribute();
id = NameGeneratorHelper.GetViewId();
attribute.Value = "@+id/" + id;
attribute.FullName = "android:id";
attribute.NamespaceUri = "http://schemas.android.com/apk/res/android";
element.Attributes.Add(attribute);
//check isFragment cause we will do a findViewById next and it will not works
if (!isFragment)
{
viewsId.Add(new IdViewObject(element.LocalName, id));
}
}
foreach (XmlAttribute attribute in bindings)
{
attribute.AttachedId = id;
element.Attributes.Remove(attribute);
}
expressionAttributes.AddRange(bindings);
foreach (XmlElement child in element.Children)
{
_ExtractExpressions(child, expressionAttributes, viewsId);
}
}