internal override Node Clone(Node parent)
{
Attr attr = new Attr();
attr.ownerDocument = parent.ownerDocument;
attr.Begin = this.Begin;
attr.End = this.End;
attr.NameBegin = this.NameBegin;
attr.NameLength = this.NameLength;
attr.ValueBegin = this.ValueBegin;
attr.ValueLength = this.ValueLength;
return(attr);
}
internal override Node Clone(Node parent)
{
Element clone = new Element(this.Name);
clone.parentNode = parent;
clone.ChildIndex = this.ChildIndex;
parent.ChildNodeList.Add(clone);
((Node)clone).Index = base.Index;
parent.ownerDocument.AllNodes.Add(clone);
clone.ownerDocument = parent.ownerDocument;
clone.Begin = this.Begin;
clone.End = this.End;
clone.InnerBegin = this.InnerBegin;
clone.InnerEnd = this.InnerEnd;
clone.AllNodesCount = this.AllNodesCount;
clone.AllElementsCount = this.AllElementsCount;
foreach (Attr i in this.attributes)
{
Attr attr = (Attr)i.Clone(clone);
attr.Element = clone;
clone.attributes.AddItem(attr);
}
clone.Index = this.Index;
parent.ownerDocument.all.Add(clone);
clone.ChildNodeList.Capacity = this.ChildNodeList.Capacity;
foreach (Node i in this.ChildNodeList)
{
Node child = i.Clone(clone);
}
return(clone);
}
internal override void OnChangeNamedItem(Node reference, Node replace)
{
Element element = (Element)reference;
Attr attr = (Attr)replace;
int stringIndex = attr.Begin;
bool inOpenTag = attr.InOpenTag;
attr.OnRemoveNamedItem();
element.attributes.Insert(attr.ChildIndex, this);
string postfix = Symbol.Space;
if (element.ownerDocument.End > stringIndex)
{
if (element.ownerDocument.Content[stringIndex + 1] == Symbol.Space[0])
{
postfix = "";
}
}
else
{
postfix = "";
}
element.ownerDocument.Content = element.ownerDocument.Content.Insert(stringIndex, this.Content + postfix);
int length = this.End - this.Begin + 1 + postfix.Length;
int next = this.ChildIndex + 1;
if (element.attributes.Count > next)
{
element.attributes[next].Shift(length);
}
element.OnAttributesChange(length, inOpenTag);
this.Element = element;
this.ownerDocument = element.ownerDocument;
this.SetIndex(stringIndex);
this.ownerDocument.SelfCheck();
}
internal void AddIndex(Attr attr)
{
switch (attr.name)
{
case "id":
this.IndexOnId.Add(attr.value, attr.Element);
break;
case "class":
this.AddIndexOnClass(attr.value, attr.Element);
break;
case "name":
this.IndexOnName.Add(attr.value, attr.Element);
break;
}
}
internal void RemoveIndex(Attr attr)
{
switch (attr.name)
{
case "id":
this.IndexOnId.Remove(attr.value);
break;
case "class":
this.RemoveIndexOnClass(attr.value, attr.Element);
break;
case "name":
this.IndexOnName.Remove(attr.value, attr.Element);
break;
}
}
private IEnumerable <Element> GetElementsByAttr(IEnumerable <Element> source)
{
return(source.SelectMany(i => i.EnumerateAllElements().Where(j =>
{
if (this.Value.IsNull())
{
return j.attributes[this.Name].IsNotNull();
}
else
{
Attr attr = j.attributes[this.Name];
if (attr.IsNull())
{
return false;
}
else
{
return attr.value == this.Value;
}
}
})));
}
/// <summary>
/// 移除指定的属性节点
/// </summary>
/// <param name="attr"></param>
/// <returns></returns>
public Attr removeAttributeNode(Attr attr)
{
return(this.attributes.removeNamedItem(attr.name));
}
/// <summary>
/// 设置或更改指定属性节点
/// </summary>
/// <param name="attr"></param>
/// <returns></returns>
public Attr setAttributeNode(Attr attr)
{
return(this.attributes.setNamedItem(attr));
}
/// <summary>
/// 返回元素节点的指定属性值
/// </summary>
/// <param name="name"></param>
/// <returns></returns>
public string getAttribute(string name)
{
Attr attr = this.getAttributeNode(name);
return(attr.IsNotNull() ? attr.value : null);
}
