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.CompressDataUriAsync(src.Value);
if (dataUri.Length < src.Value.Length)
{
using (WebEssentialsPackage.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.CompressFilesAsync(fileName);
}
}
public IEnumerable <ISmartTagAction> GetSmartTagActions(ParseItem item, int position, ITrackingSpan itemTrackingSpan, ITextView view)
{
UrlItem url = (UrlItem)item;
if (!url.IsValid || url.UrlString == null || string.IsNullOrEmpty(url.UrlString.Text))
{
yield break;
}
string text = url.UrlString.Text.Trim('"', '\'');
string testSupportFileName = text;
if (url.IsDataUri())
{
string mime = FileHelpers.GetMimeTypeFromBase64(text);
testSupportFileName = "file." + FileHelpers.GetExtension(mime);
}
if (!ImageCompressor.IsFileSupported(testSupportFileName))
{
yield break;
}
yield return(new OptimizeImageSmartTagAction(itemTrackingSpan, url));
}
public async override void Invoke(CancellationToken cancellationToken)
{
ImageCompressor compressor = new ImageCompressor();
bool isDataUri = Attribute.Value.StartsWith("data:image/", StringComparison.Ordinal);
if (isDataUri)
{
string dataUri = await compressor.CompressDataUriAsync(Attribute.Value);
if (dataUri.Length < Attribute.Value.Length)
{
using (WebEssentialsPackage.UndoContext(this.DisplayText))
using (ITextEdit edit = TextBuffer.CreateEdit())
{
Span span = Span.FromBounds(Attribute.ValueRangeUnquoted.Start, Attribute.ValueRangeUnquoted.End);
edit.Replace(span, dataUri);
edit.Apply();
}
}
}
else
{
var fileName = ImageQuickInfo.GetFullUrl(Attribute.Value, TextBuffer);
if (string.IsNullOrEmpty(fileName) || !ImageCompressor.IsFileSupported(fileName) || !File.Exists(fileName))
{
return;
}
await compressor.CompressFilesAsync(fileName);
}
}
public async override void Invoke()
{
if (string.IsNullOrEmpty(_url.UrlString.Text))
{
return;
}
ImageCompressor compressor = new ImageCompressor();
string url = _url.UrlString.Text.Trim('"', '\'');
if (_url.IsDataUri())
{
string dataUri = await compressor.CompressDataUriAsync(url);
if (dataUri.Length < url.Length)
{
using (EditorExtensionsPackage.UndoContext("Optimize image"))
{
Span span = Span.FromBounds(_url.UrlString.Start, _url.UrlString.AfterEnd);
_span.TextBuffer.Replace(span, "'" + dataUri + "'");
}
}
}
else
{
string selection = Uri.UnescapeDataString(url);
string fileName = ProjectHelpers.ToAbsoluteFilePath(selection, _span.TextBuffer.GetFileName());
if (string.IsNullOrEmpty(fileName) || !ImageCompressor.IsFileSupported(fileName) || !File.Exists(fileName))
{
return;
}
await compressor.CompressFilesAsync(fileName);
}
}