public override INode Clone(Boolean deep = true)
{
var node = new HtmlScriptElement(Owner, Prefix, _parserInserted, _started);
node._forceAsync = _forceAsync;
CopyProperties(this, node, deep);
CopyAttributes(this, node);
return(node);
}
public override INode Clone(Boolean deep = true)
{
var node = new HtmlScriptElement(Owner, Prefix, _parserInserted, _started)
{
_forceAsync = _forceAsync
};
CloneElement(node, deep);
return(node);
}
/// <summary>
/// See 8.2.5.4.4 The "in head" insertion mode.
/// </summary>
/// <param name="token">The passed token.</param>
void InHead(HtmlToken token)
{
switch (token.Type)
{
case HtmlTokenType.Character:
{
var str = token.TrimStart();
AddCharacters(str);
if (token.IsEmpty)
return;
break;
}
case HtmlTokenType.Comment:
{
CurrentNode.AddComment(token);
return;
}
case HtmlTokenType.Doctype:
{
RaiseErrorOccurred(HtmlParseError.DoctypeTagInappropriate, token);
return;
}
case HtmlTokenType.StartTag:
{
var tagName = token.Name;
if (tagName.Is(TagNames.Html))
{
InBody(token);
return;
}
else if (tagName.Is(TagNames.Meta))
{
var element = new HtmlMetaElement(_document);
AddElement(element, token.AsTag(), true);
var encoding = element.GetEncoding();
CloseCurrentNode();
if (encoding != null)
{
try
{
_document.Source.CurrentEncoding = encoding;
}
catch (NotSupportedException)
{
Restart();
}
}
return;
}
else if (TagNames.AllHeadBase.Contains(tagName))
{
AddElement(token.AsTag(), true);
CloseCurrentNode();
return;
}
else if (tagName.Is(TagNames.Title))
{
RCDataAlgorithm(token.AsTag());
return;
}
else if (tagName.IsOneOf(TagNames.Style, TagNames.NoFrames) || (_options.IsScripting && tagName.Is(TagNames.NoScript)))
{
RawtextAlgorithm(token.AsTag());
return;
}
else if (tagName.Is(TagNames.NoScript))
{
AddElement(token.AsTag());
_currentMode = HtmlTreeMode.InHeadNoScript;
return;
}
else if (tagName.Is(TagNames.Script))
{
var script = new HtmlScriptElement(_document, parserInserted: true, started: IsFragmentCase);
AddElement(script, token.AsTag());
_tokenizer.State = HtmlParseMode.Script;
_previousMode = _currentMode;
_currentMode = HtmlTreeMode.Text;
return;
}
else if (tagName.Is(TagNames.Head))
{
RaiseErrorOccurred(HtmlParseError.HeadTagMisplaced, token);
return;
}
else if (tagName.Is(TagNames.Template))
{
AddElement(new HtmlTemplateElement(_document), token.AsTag());
_formattingElements.AddScopeMarker();
_frameset = false;
_currentMode = HtmlTreeMode.InTemplate;
_templateModes.Push(HtmlTreeMode.InTemplate);
return;
}
break;
}
case HtmlTokenType.EndTag:
{
var tagName = token.Name;
if (tagName.Is(TagNames.Head))
{
CloseCurrentNode();
_currentMode = HtmlTreeMode.AfterHead;
_waiting = _document.WaitForReady();
return;
}
else if (tagName.Is(TagNames.Template))
{
if (TagCurrentlyOpen(TagNames.Template))
{
GenerateImpliedEndTags();
if (!CurrentNode.LocalName.Is(TagNames.Template))
RaiseErrorOccurred(HtmlParseError.TagClosingMismatch, token);
CloseTemplate();
}
else
RaiseErrorOccurred(HtmlParseError.TagInappropriate, token);
return;
}
else if (!tagName.IsOneOf(TagNames.Html, TagNames.Body, TagNames.Br))
{
RaiseErrorOccurred(HtmlParseError.TagCannotEndHere, token);
return;
}
break;
}
}
CloseCurrentNode();
_currentMode = HtmlTreeMode.AfterHead;
AfterHead(token);
}
/// <summary>
/// Runs the current script element, if there is one.
/// </summary>
/// <returns>The task waiting for the document to be ready.</returns>
async Task RunScript(HtmlScriptElement script)
{
await _document.WaitForReady().ConfigureAwait(false);
script.Run();
}
/// <summary>
/// Runs a script given by the current node.
/// </summary>
void HandleScript(HtmlScriptElement script)
{
//Disable scripting for HTML fragments (security reasons)
if (script != null && !IsFragmentCase)
{
_document.PerformMicrotaskCheckpoint();
_document.ProvideStableState();
CloseCurrentNode();
_currentMode = _previousMode;
if (script.Prepare(_document))
{
_waiting = RunScript(script);
}
}
}
/// <summary>
/// Adds a script to the queue of scripts to be run.
/// </summary>
/// <param name="script"></param>
internal void AddScript(HtmlScriptElement script)
{
_loadingScripts.Enqueue(script);
}
internal static ScriptRequestProcessor Create(HtmlScriptElement script)
{
var document = script.Owner;
var loader = document.Loader;
return new ScriptRequestProcessor(script, document, loader);
}
private ScriptRequestProcessor(HtmlScriptElement script, Document document, IResourceLoader loader)
{
_script = script;
_document = document;
_loader = loader;
}
/// <summary>
/// Runs the current script element, if there is one.
/// </summary>
/// <returns>The task waiting for the document to be ready.</returns>
private async Task RunScript(HtmlScriptElement script)
{
await _document.WaitForReadyAsync().ConfigureAwait(false);
await script.RunAsync(CancellationToken.None).ConfigureAwait(false);
}
public override INode Clone(Boolean deep = true)
{
var node = new HtmlScriptElement(Owner, Prefix, _parserInserted, _started)
{
_forceAsync = _forceAsync
};
CloneElement(node, deep);
return node;
}