/// <summary>
/// References a child element (use when adding any child).
/// </summary>
/// <param name="node">The node to be added.</param>
internal override void ReferenceNode(Node node)
{
base.ReferenceNode(node);
if (node is Element)
{
if (node is HTMLFormElement)
{
var form = (HTMLFormElement)node;
_forms.Add(form);
}
else if (node is HTMLImageElement)
{
var img = (HTMLImageElement)node;
_images.Add(img);
}
else if (node is HTMLScriptElement)
{
var script = (HTMLScriptElement)node;
_scripts.Add(script);
}
else if (_body == null && node is HTMLBodyElement)
{
_body = (HTMLBodyElement)node;
}
else if (_head == null && node is HTMLHeadElement)
{
_head = (HTMLHeadElement)node;
}
else if (_title == null && node is HTMLTitleElement)
{
_title = (HTMLTitleElement)node;
}
}
}
/// <summary>
/// Dereferences a child element (use when removing any child).
/// </summary>
/// <param name="node">The node to be removed.</param>
internal override void DereferenceNode(Node node)
{
base.DereferenceNode(node);
if (node is Element)
{
if (node is HTMLFormElement)
{
var form = (HTMLFormElement)node;
_forms.Remove(form);
}
else if (node is HTMLImageElement)
{
var img = (HTMLImageElement)node;
_images.Remove(img);
}
else if (node is HTMLScriptElement)
{
var script = (HTMLScriptElement)node;
_scripts.Remove(script);
}
else if (_body == node)
{
_body = FindChild <HTMLBodyElement>(_documentElement);
}
else if (_head == node)
{
_head = FindChild <HTMLHeadElement>(_documentElement);
}
else if (_title == node)
{
_title = FindChild <HTMLTitleElement>(_head);
}
}
}
/// <summary>
/// References a child element (use when adding any child).
/// </summary>
/// <param name="node">The node to be added.</param>
internal override void ReferenceNode(Node node)
{
base.ReferenceNode(node);
if (node is Element)
{
if (node is HTMLFormElement)
{
var form = (HTMLFormElement)node;
forms.Add(form);
}
else if (node is HTMLImageElement)
{
var img = (HTMLImageElement)node;
images.Add(img);
}
else if (node is HTMLScriptElement)
{
var script = (HTMLScriptElement)node;
scripts.Add(script);
}
else if (body == null && node is HTMLBodyElement)
{
body = (HTMLBodyElement)node;
}
else if (head == null && node is HTMLHeadElement)
{
head = (HTMLHeadElement)node;
}
else if (title == null && node is HTMLTitleElement)
{
title = (HTMLTitleElement)node;
}
}
}
/// <summary>
/// Dereferences a child element (use when removing any child).
/// </summary>
/// <param name="node">The node to be removed.</param>
internal override void DereferenceNode(Node node)
{
base.DereferenceNode(node);
if (node is Element)
{
if (node is HTMLFormElement)
{
var form = (HTMLFormElement)node;
forms.Remove(form);
}
else if (node is HTMLImageElement)
{
var img = (HTMLImageElement)node;
images.Remove(img);
}
else if (node is HTMLScriptElement)
{
var script = (HTMLScriptElement)node;
scripts.Remove(script);
}
else if (body == node)
{
body = FindChild<HTMLBodyElement>(documentElement);
}
else if (head == node)
{
head = FindChild<HTMLHeadElement>(documentElement);
}
else if (title == node)
{
title = FindChild<HTMLTitleElement>(head);
}
}
}
public void HtmlHasRightHeadElement()
{
var doc = new HTMLDocument();
var root = new HTMLHtmlElement();
doc.AppendChild(root);
var head = new HTMLHeadElement();
root.AppendChild(head);
Assert.AreEqual(head, doc.Head);
}
/// <summary>
/// See 8.2.5.4.3 The "before head" insertion mode.
/// </summary>
/// <param name="token">The passed token.</param>
void BeforeHead(HtmlToken token)
{
if (token.Type == HtmlTokenType.Comment)
{
AddComment(CurrentNode, token);
return;
}
else if (token.Type == HtmlTokenType.DOCTYPE)
{
RaiseErrorOccurred(ErrorCode.DoctypeTagInappropriate);
return;
}
else if (token.Type == HtmlTokenType.StartTag && ((HtmlTagToken)token).Name == HTMLHtmlElement.Tag)
{
InBody(token);
return;
}
else if (token.Type == HtmlTokenType.StartTag && ((HtmlTagToken)token).Name == HTMLHeadElement.Tag)
{
var element = new HTMLHeadElement();
AddElementToCurrentNode(element, token);
insert = HtmlTreeMode.InHead;
return;
}
else if (token.IsEndTagInv(HTMLHtmlElement.Tag, HTMLBodyElement.Tag, HTMLBRElement.Tag, HTMLHeadElement.Tag))
{
RaiseErrorOccurred(ErrorCode.TagCannotEndHere);
return;
}
else if(token.Type == HtmlTokenType.Character)
{
var chars = (HtmlCharacterToken)token;
chars.TrimStart();
if (chars.IsEmpty)
return;
}
BeforeHead(HtmlToken.OpenTag(HTMLHeadElement.Tag));
InHead(token);
}
/// <summary>
/// See 8.2.5.4.3 The "before head" insertion mode.
/// </summary>
/// <param name="token">The passed token.</param>
void BeforeHead(HtmlToken token)
{
if (token.Type == HtmlTokenType.Comment)
{
AddComment(CurrentNode, token);
}
else if (token.Type == HtmlTokenType.DOCTYPE)
{
RaiseErrorOccurred(ErrorCode.DoctypeTagInappropriate);
}
else if (token.Type == HtmlTokenType.StartTag && ((HtmlTagToken)token).Name == HTMLHtmlElement.Tag)
{
InBody(token);
}
else if (token.Type == HtmlTokenType.StartTag && ((HtmlTagToken)token).Name == HTMLHeadElement.Tag)
{
var element = new HTMLHeadElement();
AddElementToCurrentNode(element, token);
insert = HtmlTreeMode.InHead;
}
else if (token.Type == HtmlTokenType.EndTag && !(((HtmlTagToken)token).Name.IsHtmlBodyOrBreakRowElement(true)))
{
RaiseErrorOccurred(ErrorCode.TagCannotEndHere);
}
else if(!token.IsIgnorable)
{
BeforeHead(HtmlToken.OpenTag(HTMLHeadElement.Tag));
InHead(token);
}
}
