public string SortScss(string scss)
{
ICssParser parser = CssParserLocator.FindComponent(ContentTypeManager.GetContentType(ScssContentTypeDefinition.ScssContentType)).CreateParser();
StyleSheet stylesheet = parser.Parse(scss.Trim(), true);
return(PreprocessorSorting(stylesheet));
}
private void Initialize(string targetFileContents, string mapFileContents, string directory, IContentType contentType)
{
_contentType = contentType;
_parser = CssParserLocator.FindComponent(_contentType).CreateParser();
_directory = directory;
PopulateMap(targetFileContents, mapFileContents); // Begin two-steps initialization.
}
public void TestMixinExpansion()
{
var lessFactory = CssParserLocator.FindComponent(ContentTypeManager.GetContentType(LessContentTypeDefinition.LessContentType));
var lessCode = @"a {
.myMixin(@p) {
b, code {
}
}
}";
var lessDoc = lessFactory.CreateParser().Parse(lessCode, false);
var lessBlocks = new CssItemAggregator <RuleSet>(true)
{
(RuleSet rs) => rs
}.Crawl(lessDoc).ToList();
// Remove all but the deepest blocks
while (0 < lessBlocks.RemoveAll(c => lessBlocks.Any(c.IsParentOf)))
{
;
}
var literalExpansions = lessBlocks.SelectMany(rs => LessDocument.GetSelectorNames(rs, LessMixinAction.Literal)).ToList();
literalExpansions.Should().Equal(new[] { "a .myMixin(@p) b", "a .myMixin(@p) code" });
var skipExpansions = lessBlocks.SelectMany(rs => LessDocument.GetSelectorNames(rs, LessMixinAction.Skip)).ToList();
skipExpansions.Should().BeEmpty();
var nestedExpansions = lessBlocks.SelectMany(rs => LessDocument.GetSelectorNames(rs, LessMixinAction.NestedOnly)).ToList();
nestedExpansions.Should().Equal(new[] { "«mixin .myMixin» b", "«mixin .myMixin» code" });
}
public void TestMixinExpansion()
{
var scssFactory = CssParserLocator.FindComponent(ContentTypeManager.GetContentType(ScssContentTypeDefinition.ScssContentType));
var scssCode = @"a {
@mixin myMixin($p) {
b, code {
width: $p+10+px;
}
}
@include myMixin(1)
}
";
var scssDoc = scssFactory.CreateParser().Parse(scssCode, false);
var scssBlocks = new CssItemAggregator <RuleSet>(true)
{
(RuleSet rs) => rs
}.Crawl(scssDoc).ToList();
// Remove all but the deepest blocks
while (0 < scssBlocks.RemoveAll(c => scssBlocks.Any(c.IsParentOf)))
{
;
}
var literalExpansions = scssBlocks.SelectMany(rs => ScssDocument.GetSelectorNames(rs, ScssMixinAction.Literal)).ToList();
literalExpansions.Should().Equal(new[] { "a b", "a code" });
var skipExpansions = scssBlocks.SelectMany(rs => ScssDocument.GetSelectorNames(rs, ScssMixinAction.Skip)).ToList();
skipExpansions.Should().BeEmpty();
}
private string FindFile(IEnumerable <string> extensions, out int position)
{
ICssParser parser = CssParserLocator.FindComponent(Mef.GetContentType(LessContentTypeDefinition.LessContentType)).CreateParser();
string root = ProjectHelpers.GetProjectFolder(TextView.TextBuffer.GetFileName());
position = -1;
string result = null;
foreach (string ext in extensions)
{
foreach (string file in Directory.GetFiles(root, "*" + ext, SearchOption.AllDirectories))
{
if (file.EndsWith(".min" + ext, StringComparison.OrdinalIgnoreCase))
{
continue;
}
string text = File.ReadAllText(file);
int index = text.IndexOf("." + _className, StringComparison.Ordinal);
if (index > -1)
{
var css = parser.Parse(text, true);
var visitor = new CssItemCollector <ClassSelector>(false);
css.Accept(visitor);
var selectors = visitor.Items.Where(c => c.ClassName.Text == _className);
var high = selectors.FirstOrDefault(c => c.FindType <AtDirective>() == null && (c.Parent.NextSibling == null || c.Parent.NextSibling.Text == ","));
if (high != null)
{
position = high.Start;
return(file);
}
var medium = selectors.FirstOrDefault(c => c.Parent.NextSibling == null || c.Parent.NextSibling.Text == ",");
if (medium != null)
{
position = medium.Start;
result = file;
continue;
}
var low = selectors.FirstOrDefault();
if (low != null)
{
position = low.Start;
result = file;
continue;
}
}
}
}
return(result);
}
private string FindRuleSetInFile(IEnumerable <string> extensions, string id, out RuleSet rule)
{
string root = ProjectHelpers.GetProjectFolder(peekableItem._textbuffer.GetFileName());
string result = null;
bool isLow = false, isMedium = false;
rule = null;
foreach (string ext in extensions)
{
ICssParser parser = CssParserLocator.FindComponent(Mef.GetContentType(ext.Trim('.'))).CreateParser();
foreach (string file in Directory.EnumerateFiles(root, "*" + ext, SearchOption.AllDirectories))
{
if (file.EndsWith(".min" + ext, StringComparison.OrdinalIgnoreCase) ||
file.Contains("node_modules") ||
file.Contains("bower_components"))
{
continue;
}
string text = FileHelpers.ReadAllTextRetry(file).ConfigureAwait(false).GetAwaiter().GetResult();
int index = text.IndexOf("#" + id, StringComparison.Ordinal);
if (index == -1)
{
continue;
}
var css = parser.Parse(text, true);
var visitor = new CssItemCollector <IdSelector>(false);
css.Accept(visitor);
var selectors = visitor.Items.Where(c => c.HashName.Text == "#" + id);
var high = selectors.FirstOrDefault(c => c.FindType <AtDirective>() == null && (c.Parent.NextSibling == null || c.Parent.NextSibling.Text == ","));
if (high != null)
{
rule = high.FindType <RuleSet>();
return(file);
}
var medium = selectors.FirstOrDefault(c => c.Parent.NextSibling == null || c.Parent.NextSibling.Text == ",");
if (medium != null && !isMedium)
{
rule = medium.FindType <RuleSet>();
result = file;
isMedium = true;
continue;
}
var low = selectors.FirstOrDefault();
if (low != null && !isMedium && !isLow)
{
rule = low.FindType <RuleSet>();
result = file;
isLow = true;
continue;
}
}
}
return(result);
}
protected override ICssParser CreateParser()
{
return(CssParserLocator.FindComponent(Mef.GetContentType(ScssContentTypeDefinition.ScssContentType)).CreateParser());
}
public CssDependencyGraph(string extension, IFileExtensionRegistryService fileExtensionRegistry)
: base(fileExtensionRegistry.GetContentTypeForExtension(extension.TrimStart('.')), fileExtensionRegistry)
{
Extension = extension;
parserFactory = CssParserLocator.FindComponent(ContentType);
}
public async Task SelectorExpansionTest()
{
#region LESS sources
var testSources = new[] {
@"
@media all {
a {
@media all {
@media all {
b {
color: goldenrod;
em {
color: goldenrod;
}
}
}
}
}
}
",
@" // Taken from http://blog.slaks.net/2013-09-29/less-css-secrets-of-the-ampersand/
a {
color: blue;
&:hover {
color: green;
}
}
form a {
color: purple;
body.QuietMode & {
color: black;
}
}
.quoted-source {
background: #fcc;
blockquote& {
background: #fdc;
}
}
.btn.btn-primary.btn-lg[disabled] {
& + & + & {
margin-left: 10px;
}
}
p, blockquote, ul, li {
border-top: 1px solid gray;
& + & {
border-top: 0;
}
}
",
@" // Taken from https://github.com/less/less.js/blob/master/test/less/selectors.less
h1, h2, h3 {
a, p {
&:hover {
color: red;
}
}
}
#all { color: blue; }
#the { color: blue; }
#same { color: blue; }
ul, li, div, q, blockquote, textarea {
margin: 0;
}
td {
margin: 0;
padding: 0;
}
td, input {
line-height: 1em;
}
a {
color: red;
&:hover { color: blue; }
div & { color: green; }
p & span { color: yellow; }
}
.foo {
.bar, .baz {
& .qux {
display: block;
}
.qux & {
display: inline;
}
.qux& {
display: inline-block;
}
.qux & .biz {
display: none;
}
}
}
.b {
&.c {
.a& {
color: red;
}
}
}
.b {
.c & {
&.a {
color: red;
}
}
}
.p {
.foo &.bar {
color: red;
}
}
.p {
.foo&.bar {
color: red;
}
}
.foo {
.foo + & {
background: amber;
}
& + & {
background: amber;
}
}
.foo, .bar {
& + & {
background: amber;
}
}
.foo, .bar {
a, b {
& > & {
background: amber;
}
}
}
.other ::fnord { color: red }
.other::fnord { color: red }
.other {
::bnord {color: red }
&::bnord {color: red }
}
",
@"// Taken from https://github.com/less/less.js/blob/master/test/less/rulesets.less
#first > .one {
> #second .two > #deux {
width: 50%;
#third {
&:focus {
color: black;
#fifth {
> #sixth {
.seventh #eighth {
+ #ninth {
color: purple;
}
}
}
}
}
height: 100%;
}
#fourth, #five, #six {
color: #110000;
.seven, .eight > #nine {
border: 1px solid black;
}
#ten {
color: red;
}
}
}
font-size: 2em;
}
"
};
#endregion
var lessFactory = CssParserLocator.FindComponent(ContentTypeManager.GetContentType(LessContentTypeDefinition.LessContentType));
foreach (var lessCode in testSources)
{
var cssCode = await new LessCompiler().CompileSourceAsync(lessCode, ".less");
var lessDoc = lessFactory.CreateParser().Parse(lessCode, false);
var cssDoc = new CssParser().Parse(cssCode, false);
var cssSelectors = new CssItemAggregator <string>(false)
{
(Selector s) => CssExtensions.SelectorText(s)
}.Crawl(cssDoc);
var lessSelectors = new CssItemAggregator <RuleSet>(true)
{
(RuleSet rs) => rs
}.Crawl(lessDoc)
.Where(rs => rs.Block.Declarations.Any()) // Skip selectors that don't have any rules; these won't end up in the CSS
.SelectMany(rs => LessDocument.GetSelectorNames(rs, LessMixinAction.Literal))
.ToList();
lessSelectors.Should().Equal(cssSelectors);
}
}
private string FindFile(IEnumerable <string> extensions, out int position)
{
string root = ProjectHelpers.GetProjectFolder(TextView.TextBuffer.GetFileName());
position = -1;
bool isLow = false, isMedium = false;
string result = null;
foreach (string ext in extensions)
{
ICssParser parser = CssParserLocator.FindComponent(ProjectHelpers.GetContentType(ext.Trim('.'))).CreateParser();
foreach (string file in Directory.EnumerateFiles(root, "*" + ext, SearchOption.AllDirectories))
{
if (file.EndsWith(".min" + ext, StringComparison.OrdinalIgnoreCase) ||
file.Contains("node_modules") ||
file.Contains("bower_components"))
{
continue;
}
string text = File.ReadAllText(file);
int index = text.IndexOf("." + _className, StringComparison.Ordinal);
if (index == -1)
{
continue;
}
Microsoft.WebTools.Languages.Css.TreeItems.StyleSheet css = parser.Parse(text, true);
var visitor = new CssItemCollector <ClassSelector>(false);
css.Accept(visitor);
IEnumerable <ClassSelector> selectors = visitor.Items.Where(c => c.ClassName.Text == _className);
ClassSelector high = selectors.FirstOrDefault(c => c.FindType <AtDirective>() == null && (c.Parent.NextSibling == null || c.Parent.NextSibling.Text == ","));
if (high != null)
{
position = high.Start;
return(file);
}
ClassSelector medium = selectors.FirstOrDefault(c => c.Parent.NextSibling == null || c.Parent.NextSibling.Text == ",");
if (medium != null && !isMedium)
{
position = medium.Start;
result = file;
isMedium = true;
continue;
}
ClassSelector low = selectors.FirstOrDefault();
if (low != null && !isMedium && !isLow)
{
position = low.Start;
result = file;
isLow = true;
continue;
}
}
}
return(result);
}
