private void VisitRender(HxlRenderWorkElement element)
{
string parent = stack.Peek();
string slug = GenerateSlug(element);
string renderName = NewVariable("_Render" + slug, false, true);
string varName = SafeNewVariable(renderName);
CurrentOutput.WriteLine("{0} = global::{2}.Create({1});", varName, renderName.TrimStart('_'), typeof(HxlElement).FullName);
stack.Push(varName);
PushRenderIsland(renderName.TrimStart('_'));
element.WritePreLines(CurrentOutput);
if (element.ChildNodes.Count > 0)
{
CurrentOutput.WriteLine(" __self.RenderBody();");
}
element.WritePostLines(CurrentOutput);
PopRenderIsland();
CurrentOutput.WriteLine("{0}.Append({1});", parent, varName);
VisitAll(element.ChildNodes);
stack.Pop();
}
private void ClearLiteralCache()
{
if (literalCache.Length > 0)
{
CurrentOutput.WriteLine("base.Write(\"{0}\");", literalCache);
literalCache.Length = 0;
}
}
protected override void VisitAttribute(DomAttribute attribute)
{
string parent = stack.Peek();
CurrentOutput.WriteLine("{0}.Attribute(\"{1}\", \"{2}\");",
parent,
CodeUtility.Escape(attribute.Name),
CodeUtility.Escape(attribute.Value));
}
protected override void VisitText(HxlTextElement element)
{
// These should have been converted to render islands, BUT there are a few
// cases where we want to keep an object:
// - parent is retained (easier to work with)
// - only writing a space or tab (no need for the overhead)
string parent = stack.Peek();
CurrentOutput.WriteLine("{0}.AppendText(\"{1}\");", parent, CodeUtility.Escape(element.Data));
}
protected override void VisitDocumentType(DomDocumentType documentType)
{
string varName = SafeNewVariable(documentType.Name);
CurrentOutput.WriteLine(
"{0} = this.__document.CreateDocumentType(\"{1}\", \"{2}\", \"{3}\");",
varName,
documentType.Name,
documentType.PublicId,
documentType.SystemId);
DoAppend(varName);
}
protected override void VisitElement(DomElement element)
{
string varName = SafeNewVariable(element.Name);
CurrentOutput.WriteLine(
"{1} = this.__document.CreateElement(\"{0}\");",
element.Name,
varName);
foreach (var m in element.Annotations <IRenderWorkElementCodeBuilder>())
{
m.EmitCode(output, varName, element);
}
DoChildVisit(element, varName);
DoAppend(varName);
}
private string SafeNewVariable(string suffix, bool isAttr = false)
{
string result;
suffix = CodeUtility.Slug(suffix);
if (stack.Count <= 1)
{
CurrentOutput.WriteLine();
result = NewVariable("root_" + suffix, isAttr);
}
else
{
string variable = stack.Peek();
result = NewVariable(string.Format("{0}_{1}", variable, suffix), isAttr);
}
return(result);
}
protected override void VisitText(DomText text)
{
string parent = stack.Peek();
CurrentOutput.WriteLine("{0}.AppendText(\"{1}\");", parent, CodeUtility.Escape(text.Data));
}
private void DoAppend(string variable)
{
CurrentOutput.Write("{0}.Append({1});", stack.Peek(), variable);
CurrentOutput.WriteLine();
}
protected void EmitCode(string str)
{
ClearLiteralCache();
CurrentOutput.WriteLine(str);
}