private void WriteAttribute(string indent, AttributeNode attribute)
{
XamlFormatter.XmlAttributeFormatting attributeFormatting = this.GetAttributeFormatting(attribute);
if (attributeFormatting.LeadingWhitespace != null)
{
this.writer.SetWhitespace(attributeFormatting.LeadingWhitespace);
if (attribute.IndentingBehavior == IndentingBehavior.FromContainer && this.writer.LineBreakCount > 0)
{
this.writer.SetIndent(indent);
}
}
else if (this.writer.LineBreakCount == 0 && string.IsNullOrEmpty(this.writer.Indent))
{
this.writer.SetIndent(this.settings.AttributeIndentString);
}
StringBuilder builder = new StringBuilder(attribute.Name.FullName);
char attributeQuoteCharacter;
if (attributeFormatting.ValuePrefix != null)
{
attributeQuoteCharacter = attributeFormatting.AttributeQuoteCharacter;
builder.Append(attributeFormatting.ValuePrefix);
}
else
{
attributeQuoteCharacter = this.settings.AttributeQuoteCharacter;
builder.Append('=');
builder.Append(attributeQuoteCharacter);
}
this.WriteAttributeValue(attributeQuoteCharacter, builder, attribute.Value, attribute.EscapeWhitespace);
if (attributeFormatting.ValueSuffix != null)
{
builder.Append(attributeFormatting.ValueSuffix);
}
else
{
builder.Append(attributeQuoteCharacter);
}
int start = this.writer.WriteAttribute(builder.ToString());
int length = this.writer.Length;
if (this.shouldUpdateSourceContext && attribute.SourceContextReference != null)
{
XmlAttributeReference attributeReference = attribute.SourceContextReference.BuildXmlAttributeReference();
attributeReference.InitialTextSpan = (ITextRange) new TextRange(start, length);
attribute.SourceContextReference.SourceContext = (XamlSourceContext)attributeReference;
}
if (attributeFormatting.TrailingWhitespace == null)
{
return;
}
this.writer.SetWhitespace(attributeFormatting.TrailingWhitespace);
}
private XamlFormatter.XmlAttributeFormatting GetAttributeFormatting(AttributeNode attributeNode)
{
XamlFormatter.XmlAttributeFormatting attributeFormatting = new XamlFormatter.XmlAttributeFormatting();
if (attributeNode.SourceContextReference == null)
{
return(attributeFormatting);
}
XmlAttributeReference attributeReference = attributeNode.SourceContextReference.SourceContext as XmlAttributeReference;
if (attributeReference != null && attributeReference.TextRange != null)
{
string text = TextBufferHelper.GetHostBuffer(attributeReference.TextBuffer).GetText(attributeReference.TextRange.Offset, attributeReference.TextRange.Length);
int num = text.IndexOf('=');
if (num == -1)
{
return(attributeFormatting);
}
int index1 = num - 1;
while (index1 >= 0 && Scanner.IsXmlWhitespace(text[index1]))
{
--index1;
}
int index2 = num + 1;
while (index2 < text.Length && Scanner.IsXmlWhitespace(text[index2]))
{
++index2;
}
int startIndex = text.LastIndexOf(text[index2]);
if (index2 >= 0 && startIndex > index2)
{
attributeFormatting.LeadingWhitespace = XamlFormatter.GetLeadingWhitespace((XamlSourceContext)attributeReference);
attributeFormatting.TrailingWhitespace = XamlFormatter.GetTrailingWhitespace((XamlSourceContext)attributeReference);
attributeFormatting.ValuePrefix = text.Substring(index1 + 1, index2 - index1);
attributeFormatting.ValueSuffix = text.Substring(startIndex, 1);
attributeFormatting.AttributeQuoteCharacter = text[index2];
}
}
return(attributeFormatting);
}