public async override void Invoke()
{
ITextBuffer textBuffer = this.HtmlSmartTag.TextBuffer;
ElementNode element = this.HtmlSmartTag.Element;
AttributeNode src = element.GetAttribute("src", true);
ImageCompressor compressor = new ImageCompressor();
bool isDataUri = src.Value.StartsWith("data:image/", StringComparison.Ordinal);
if (isDataUri)
{
string dataUri = await compressor.CompressDataUri(src.Value);
if (dataUri.Length < src.Value.Length)
{
using (EditorExtensionsPackage.UndoContext("Optimize image"))
{
Span span = Span.FromBounds(src.ValueRangeUnquoted.Start, src.ValueRangeUnquoted.End);
textBuffer.Replace(span, dataUri);
}
}
}
else
{
var fileName = ImageQuickInfo.GetFullUrl(src.Value, textBuffer);
if (string.IsNullOrEmpty(fileName) || !ImageCompressor.IsFileSupported(fileName) || !File.Exists(fileName))
return;
await compressor.CompressFiles(fileName);
}
}