private static void AttributeAppend(DomAttribute left,
DomAttribute append)
{
var toElement = left.OwnerElement;
var appendThunkFrag = append as HxlAttribute.ThunkFragment;
if (appendThunkFrag == null)
{
AttributeAppend(left, append.Value);
}
else
{
toElement.Attributes.Remove(append.Name);
Func <dynamic, HxlAttribute, string> thunkLeft;
var leftThunkFrag = left as HxlAttribute.ThunkFragment;
if (leftThunkFrag == null)
{
// No need to create a closure on the whole attribute
string leftValue = left.Value;
thunkLeft = (x, y) => leftValue;
}
else
{
thunkLeft = leftThunkFrag._action;
}
var attr = HxlAttribute.Combine(left.Name, thunkLeft, appendThunkFrag._action);
toElement.Append(attr);
}
}
// Appends the given value to the attribute which uses a
// merging semantic like "class"
private static void AttributeAppend(DomAttribute left,
string appendValue)
{
var toElement = left.OwnerElement;
var thunkFragment = left as HxlAttribute.ThunkFragment;
if (thunkFragment != null)
{
toElement.RemoveAttribute(left.Name);
var combo = HxlAttribute.Combine(
left.Name,
thunkFragment._action,
(x, y) => appendValue);
toElement.Append(combo);
}
else if (!string.IsNullOrWhiteSpace(left.Value))
{
left.Value += " " + appendValue;
}
else
{
left.Value = appendValue;
}
}