public ItemCheckResult CheckItem(ParseItem item, ICssCheckerContext context)
{
UrlItem url = (UrlItem)item;
if (!WESettings.GetBoolean(WESettings.Keys.ValidateEmbedImages) || !url.IsValid || url.UrlString.Text.Contains("base64,") || context == null)
{
return(ItemCheckResult.Continue);
}
string fileName = ImageQuickInfo.GetFileName(url.UrlString.Text);
if (fileName.Contains("://"))
{
return(ItemCheckResult.Continue);
}
FileInfo file = new FileInfo(fileName);
if (file.Exists && file.Length < (1024 * 3))
{
Declaration dec = url.FindType <Declaration>();
if (dec != null && dec.PropertyName != null && dec.PropertyName.Text[0] != '*' && dec.PropertyName.Text[0] != '_')
{
string error = string.Format(Resources.PerformanceEmbedImageAsDataUri, file.Length);
context.AddError(new SimpleErrorTag(url.UrlString, error));
}
}
return(ItemCheckResult.Continue);
}
public IEnumerable <ITagSpan <IOutliningRegionTag> > GetTags(NormalizedSnapshotSpanCollection spans)
{
if (spans.Count == 0 || !EnsureInitialized())
{
yield break;
}
var visitor = new CssItemCollector <UrlItem>();
_tree.StyleSheet.Accept(visitor);
foreach (UrlItem url in visitor.Items.Where(u => u.UrlString != null && u.Start >= spans[0].Start))
{
if (url.UrlString.Text.IndexOf("base64,") > -1 && buffer.CurrentSnapshot.Length >= url.UrlString.AfterEnd)
{
var image = ImageQuickInfo.CreateImage(url.UrlString.Text.Trim('"', '\''));
var span = new SnapshotSpan(new SnapshotPoint(buffer.CurrentSnapshot, url.UrlString.Start), url.UrlString.Length);
var tag = new OutliningRegionTag(true, true, url.UrlString.Length + " characters", image);
yield return(new TagSpan <IOutliningRegionTag>(span, tag));
}
}
}
