/// <summary>
/// Analyses a single page layout from a provided file
/// </summary>
/// <param name="pageLayoutItem">Page layout list item</param>
public PageLayout AnalysePageLayout(ListItem pageLayoutItem)
{
try
{
// Get the associated page layout content type
string assocContentType = pageLayoutItem[Constants.PublishingAssociatedContentTypeField].ToString();
var assocContentTypeParts = assocContentType.Split(new string[] { ";#" }, StringSplitOptions.RemoveEmptyEntries);
// Load content type fields in memory once
var contentTypeFields = LoadContentTypeFields(assocContentTypeParts[1]);
// Extact page header
var extractedHeader = ExtractPageHeaderFromPageLayoutAssociatedContentType(contentTypeFields);
// Analyze the pagelayout file content
var extractedHtmlBlocks = ExtractControlsFromPageLayoutHtml(pageLayoutItem);
extractedHtmlBlocks.WebPartFields = CleanExtractedWebPartFields(extractedHtmlBlocks.WebPartFields, contentTypeFields);
// Detect the fields that will become metadata in the target site
var extractedMetaDataFields = ExtractMetaDataFromPageLayoutAssociatedContentType(contentTypeFields, extractedHtmlBlocks.WebPartFields, extractedHeader);
var metaData = new MetaData
{
Field = extractedMetaDataFields
};
// Combine all data to a single PageLayout mapping
var layoutMapping = new PageLayout()
{
// Display name of the page layout
Name = Path.GetFileNameWithoutExtension(pageLayoutItem[Constants.FileLeafRefField].ToString()),
// Default to no page header for now
PageHeader = extractedHeader != null ? PageLayoutPageHeader.Custom : PageLayoutPageHeader.None,
// Default to autodetect layout model
PageLayoutTemplate = PageLayoutPageLayoutTemplate.AutoDetect,
// The content type to be used on the target modern page
AssociatedContentType = "",
// Set the header details (if any)
Header = extractedHeader,
// Fields that will become metadata fields for the target page
MetaData = metaData,
// Fields that will become web parts on the target page
WebParts = extractedHtmlBlocks.WebPartFields.Count > 0 ? extractedHtmlBlocks.WebPartFields.ToArray() : null,
// Web part zones that can hold zero or more web parts
WebPartZones = extractedHtmlBlocks.WebPartZones.Count > 0 ? extractedHtmlBlocks.WebPartZones.ToArray() : null,
// Fixed web parts, this are web parts which are 'hardcoded' in the pagelayout aspx file
FixedWebParts = extractedHtmlBlocks.FixedWebParts.Count > 0 ? extractedHtmlBlocks.FixedWebParts?.ToArray() : null,
};
// Add to mappings list
if (_mapping.PageLayouts != null)
{
var expandMappings = _mapping.PageLayouts.ToList();
// Prevent duplicate references to the same page layout
if (!expandMappings.Any(o => o.Name == layoutMapping.Name))
{
expandMappings.Add(layoutMapping);
}
_mapping.PageLayouts = expandMappings.ToArray();
}
else
{
_mapping.PageLayouts = new[] { layoutMapping };
}
LogInfo(string.Format(LogStrings.AnalyserMappingLayout, layoutMapping.Name), LogStrings.Heading_PageLayoutAnalyser);
return(layoutMapping);
}
catch (Exception ex)
{
LogError(LogStrings.Error_CannotProcessPageLayoutAnalyse, LogStrings.Heading_PageLayoutAnalyser, ex);
}
return(null);
}
private static HeaderField GetHeaderField(PageLayout publishingPageTransformationModel, HeaderFieldHeaderProperty fieldName)
{
return(publishingPageTransformationModel.Header.Field.Where(p => p.HeaderProperty == fieldName).FirstOrDefault());
}