/// <summary>
/// Write out the topic metadata
/// </summary>
/// <param name="writer">The writer to which the metadata is written</param>
/// <param name="builder">The build process</param>
/// <remarks>This will recursively write out metadata for sub-topics
/// as well.</remarks>
internal void WriteMetadata(XmlWriter writer, BuildProcess builder)
{
// MS Help Viewer doesn't support empty place holders so we automatically generate a dummy place
// holder file for them.
if (!noFile || (builder.CurrentProject.HelpFileFormat & HelpFileFormats.MSHelpViewer) != 0)
{
writer.WriteStartElement("topic");
writer.WriteAttributeString("id", this.Id);
writer.WriteAttributeString("revisionNumber",
this.RevisionNumber.ToString(CultureInfo.InvariantCulture));
// Write out the help file version project property value
writer.WriteStartElement("item");
writer.WriteAttributeString("id", "PBM_FileVersion");
writer.WriteValue(builder.TransformText(builder.CurrentProject.HelpFileVersion));
writer.WriteEndElement();
// If no title is specified, use the display title
writer.WriteStartElement("title");
if (!String.IsNullOrEmpty(title))
{
writer.WriteString(title);
}
else
{
writer.WriteString(this.DisplayTitle);
}
writer.WriteEndElement();
// TOC title is optional
if (!String.IsNullOrEmpty(tocTitle))
{
writer.WriteElementString("tableOfContentsTitle", tocTitle);
}
// Each topic includes the project-level help attributes
foreach (MSHelpAttr attr in builder.CurrentProject.HelpAttributes)
{
writer.WriteStartElement("attribute");
writer.WriteAttributeString("name", attr.AttributeName);
// Replace tags with their project property value
writer.WriteValue(builder.TransformText(attr.AttributeValue));
writer.WriteEndElement();
}
// Add topic-specific attributes
foreach (MSHelpAttr attr in helpAttributes)
{
writer.WriteStartElement("attribute");
writer.WriteAttributeString("name", attr.AttributeName);
// Replace tags with their project property value
writer.WriteValue(builder.TransformText(attr.AttributeValue));
writer.WriteEndElement();
}
// Add topic-specific index keywords
foreach (MSHelpKeyword kw in keywords)
{
writer.WriteStartElement("keyword");
writer.WriteAttributeString("index", kw.Index);
// Replace tags with their project property value
writer.WriteValue(builder.TransformText(kw.Term));
writer.WriteEndElement();
}
// If this is the default topic and the NamedUrlIndex keywords for DefaultPage and/or HomePage
// are not present, add them.
if (this.IsDefaultTopic)
{
if (!keywords.Contains(new MSHelpKeyword("NamedUrlIndex", "DefaultPage")))
{
writer.WriteStartElement("keyword");
writer.WriteAttributeString("index", "NamedUrlIndex");
writer.WriteValue("DefaultPage");
writer.WriteEndElement();
}
if (!keywords.Contains(new MSHelpKeyword("NamedUrlIndex", "HomePage")))
{
writer.WriteStartElement("keyword");
writer.WriteAttributeString("index", "NamedUrlIndex");
writer.WriteValue("HomePage");
writer.WriteEndElement();
}
}
writer.WriteEndElement(); // </topic>
}
// Write metadata for sub-topics too
foreach (Topic t in subtopics)
{
t.WriteMetadata(writer, builder);
}
}