/// <summary>
/// 添加子元素
/// </summary>
/// <param name="e">要添加的子元素</param>
/// <returns>操作是否成功</returns>
public override bool AppendChild(HTMLElement e)
{
if (e == this)
{
return(true);
}
if (this.PrivateCheckChildTagName(e.TagName))
{
return(base.AppendChild(e));
}
else
{
foreach (HTMLElement element in myChildNodes)
{
if (element is HTMLContainer)
{
HTMLContainer c = ( HTMLContainer )element;
if (c.InnerAppendChild(e))
{
return(true);
}
}
}
}
return(false);
}
internal override bool CheckParent(HTMLContainer vParent)
{
return(vParent is HTMLIEDeviceRect);
}
/// <summary>
/// 创建元素对象实例
/// </summary>
/// <param name="TagName">HTML标签名称</param>
/// <param name="vParent">创建的元素的父节点</param>
/// <returns>创建的HTML元素对象</returns>
internal HTMLElement InnerCreateElement(string TagName, HTMLContainer vParent)
{
if (HTMLTextReader.isBlankString(TagName))
{
return(null);
}
HTMLElement NewElement = null;
TagName = TagName.ToLower().Trim();
switch (TagName)
{
case StringConstTagName.HTML:
if (vParent == null || vParent == this)
{
NewElement = this;
}
else
{
NewElement = new HTMLDivElement();
}
break;
case StringConstTagName.Head:
if (vParent is HTMLDocument)
{
NewElement = this.Head;
if (NewElement == null)
{
NewElement = new HTMLHeadElement();
}
}
break;
case StringConstTagName.Body:
if (vParent is HTMLDocument)
{
NewElement = this.Body;
if (NewElement == null)
{
NewElement = new HTMLBodyElement();
}
}
else
{
NewElement = new HTMLDivElement();
}
break;
case StringConstTagName.IEDevicerect:
NewElement = new HTMLIEDeviceRect();
break;
case StringConstTagName.IEHeaderFooter:
NewElement = new HTMLIEHeaderfooter();
break;
case StringConstTagName.IELayoutrect:
NewElement = new HTMLIELayoutrect();
break;
case StringConstTagName.IETemplatePrinter:
NewElement = new HTMLIETemplateprinter();
break;
case StringConstTagName.H1:
NewElement = new HTMLHnElement();
((HTMLHnElement)NewElement).Level = 1;
break;
case StringConstTagName.H2:
NewElement = new HTMLHnElement();
((HTMLHnElement)NewElement).Level = 2;
break;
case StringConstTagName.H3:
NewElement = new HTMLHnElement();
((HTMLHnElement)NewElement).Level = 3;
break;
case StringConstTagName.H4:
NewElement = new HTMLHnElement();
((HTMLHnElement)NewElement).Level = 4;
break;
case StringConstTagName.H5:
NewElement = new HTMLHnElement();
((HTMLHnElement)NewElement).Level = 5;
break;
case StringConstTagName.H6:
NewElement = new HTMLHnElement();
((HTMLHnElement)NewElement).Level = 6;
break;
case StringConstTagName.Input:
NewElement = new HTMLInputElement();
break;
case StringConstTagName.TextArea:
NewElement = new HTMLTextAreaElement();
break;
case StringConstTagName.Select:
NewElement = new HTMLSelectElement();
break;
case StringConstTagName.Option:
NewElement = new HTMLOptionElement();
break;
case StringConstTagName.Form:
NewElement = new HTMLFormElement();
break;
case StringConstTagName.A:
NewElement = new HTMLAElement();
break;
case StringConstTagName.B:
NewElement = new HTMLBElement();
break;
case StringConstTagName.Pre:
NewElement = new HTMLPreElement();
break;
case StringConstTagName.Span:
NewElement = new HTMLSpanElement();
break;
case StringConstTagName.Div:
NewElement = new HTMLDivElement();
break;
case StringConstTagName.P:
NewElement = new HTMLPElement();
break;
case StringConstTagName.Br:
NewElement = new HTMLBRElement();
break;
case StringConstTagName.Applet:
NewElement = new HTMLAppletElement();
break;
case StringConstTagName.TextNode:
NewElement = new HTMLTextNodeElement();
break;
case StringConstTagName.Object:
NewElement = new HTMLObjectElement();
break;
case StringConstTagName.Script:
NewElement = new HTMLScriptElement();
break;
case StringConstTagName.Link:
NewElement = new HTMLLinkElement();
break;
case StringConstTagName.Font:
NewElement = new HTMLFontElement();
break;
case StringConstTagName.Meta:
NewElement = new HTMLMetaElement();
break;
case StringConstTagName.BGSound:
NewElement = new HTMLBGSoundElement();
break;
case StringConstTagName.Param:
NewElement = new HTMLParamElement();
break;
case StringConstTagName.Comment:
NewElement = new HTMLCommentElement();
break;
case StringConstTagName.Hr:
NewElement = new HTMLHRElement();
break;
case StringConstTagName.Table:
NewElement = new HTMLTableElement();
break;
case StringConstTagName.TBody:
NewElement = new HTMLTBodyElement();
break;
case StringConstTagName.Tr:
NewElement = new HTMLTRElement();
break;
case StringConstTagName.Td:
NewElement = new HTMLTDElement();
break;
case StringConstTagName.Col:
NewElement = new HTMLColElement();
break;
case StringConstTagName.Style:
NewElement = new HTMLStyleElement();
break;
case StringConstTagName.Img:
NewElement = new HTMLImgElement();
break;
case StringConstTagName.Title:
NewElement = new HTMLTitleElement();
break;
case StringConstTagName.UL:
NewElement = new HTMLULElement();
break;
case StringConstTagName.LI:
NewElement = new HTMLLIElement();
break;
case StringConstTagName.Map:
NewElement = new HTMLMapElement();
break;
case StringConstTagName.Area:
NewElement = new HTMLAreaElement();
break;
case StringConstTagName.HTAApplication:
NewElement = new HTMLHTAApplicationElement();
break;
case StringConstTagName.FrameSet:
NewElement = new HTMLFrameSetElement();
break;
case StringConstTagName.Frame:
NewElement = new HTMLFrameElement();
break;
case StringConstTagName.Label:
NewElement = new HTMLLabelElement();
break;
case StringConstTagName.Marquee:
NewElement = new HTMLMarqueeElement();
break;
case StringConstTagName.IFrame:
NewElement = new HTMLIFrameElement();
break;
case StringConstTagName.XML:
NewElement = new HTMLXMLElement();
break;
case StringConstTagName.Sup:
NewElement = new HTMLSupElement();
break;
case StringConstTagName.Sub:
NewElement = new HTMLSubElement();
break;
case StringConstTagName.Nobr:
NewElement = new HTMLNobarElement();
break;
default:
NewElement = new HTMLUnknowElement();
(( HTMLUnknowElement)NewElement).SetTagName(TagName);
break;
}
if (NewElement != null)
{
NewElement.OwnerDocument = this;
NewElement.Parent = vParent;
}
return(NewElement);
}
/// <summary>
/// 检查指定的容器元素,判断当前元素是否可以为该元素的子元素
/// </summary>
/// <param name="vParent">容器元素</param>
/// <returns>是否可为该元素的子元素</returns>
internal virtual bool CheckParent(HTMLContainer vParent)
{
return(true);
}