private HtmlBlobSet GetHtmlBlobSet(string img)
{
string imageBlobIdText = _stringUtilities.GetXmlAttributeValue(img, "data-image-blob-id");
string previewImageBlobIdText = _stringUtilities.GetXmlAttributeValue(img, "data-preview-image-blob-id");
string thumbnailImageBlobIdText = _stringUtilities.GetXmlAttributeValue(img, "data-thumbnail-image-blob-id");
if (imageBlobIdText == null || previewImageBlobIdText == null || thumbnailImageBlobIdText == null)
{
return(null);
}
long imageBlobId;
long previewImageBlobId;
long thumbnailImageBlobId;
bool parsedImageBlobId = long.TryParse(imageBlobIdText, out imageBlobId);
bool parsedPreviewImageBlobId = long.TryParse(previewImageBlobIdText, out previewImageBlobId);
bool parsedThumbnailImageBlobId = long.TryParse(thumbnailImageBlobIdText, out thumbnailImageBlobId);
if (!parsedImageBlobId || !parsedPreviewImageBlobId || !parsedThumbnailImageBlobId)
{
return(null);
}
return(new HtmlBlobSet
{
ImageBlobId = imageBlobId,
PreviewImageBlobId = previewImageBlobId,
ThumbnailImageBlobId = thumbnailImageBlobId
});
}
public string EnsureCommittedUrl(string img)
{
// If we have an uncommitted URL, will have full set of data attributes
string imageBlobIdText = _stringUtilities.GetXmlAttributeValue(img, "data-image-blob-id");
string previewImageBlobIdText = _stringUtilities.GetXmlAttributeValue(img, "data-preview-image-blob-id");
string thumbnailImageBlobIdText = _stringUtilities.GetXmlAttributeValue(img, "data-thumbnail-image-blob-id");
if (imageBlobIdText == null || previewImageBlobIdText == null || thumbnailImageBlobIdText == null)
{
return(img); // Make no changes if not uncommitted URL
}
// Get preview image blob identifier
long previewImageBlobId;
if (!long.TryParse(previewImageBlobIdText, out previewImageBlobId))
{
return(img); // Make no changes if not uncommitted URL
}
// Make no changes if we can't find blob set identifier
if (!_blobSetIdsByPreviewImageBlobId.ContainsKey(previewImageBlobId))
{
return(img);
}
long blobSetId = _blobSetIdsByPreviewImageBlobId[previewImageBlobId];
// Get width, height and alt attributes if specified
string width = _stringUtilities.GetXmlAttributeValue(img, "width");
string height = _stringUtilities.GetXmlAttributeValue(img, "height");
string alt = _stringUtilities.GetXmlAttributeValue(img, "alt");
// Get width, height and alt if not specified
width = width ?? _previewImagesByBlobSetId[blobSetId].Width.ToString();
height = height ?? _previewImagesByBlobSetId[blobSetId].Height.ToString();
alt = alt ?? _previewImagesByBlobSetId[blobSetId].Name;
// Finally, return new committed URL
string newUrl = $"/elementtypes/c92ee4c4-b133-44cc-8322-640e99c334dc/elements/{_elementId}/blobsets/{blobSetId}/content";
return($"<img src=\"{newUrl}\" width=\"{width}\" height=\"{height}\" alt=\"{alt}\" />");
}