public void ParseCss_WithStandardString_ExpectReadableProperties()
{
// Could read in a file here...
// Arrange
string css = "html{ background-color: #5a5eed; color: #FFFFFF; margin: 5px; } h2{ background-color: red }";
// Act
var stylesheet = new ExCSS.StylesheetParser().Parse(css);
// Get the info out - long hand
// var info = stylesheet.Children.First(c => ((ExCSS.StyleRule)c).SelectorText == "html") as ExCSS.StyleRule;
// var selector = info.SelectorText;
// var firstCssProperty = info.Style.BackgroundColor;
// Get the info out - New way
var info = stylesheet.StyleRules.First() as ExCSS.StyleRule;
var selector = info.SelectorText;
var backgroundColor = info.Style.BackgroundColor;
var foregroundColor = info.Style.Color;
var margin = info.Style.Margin;
// Assert
Assert.Equal(@"html", selector);
Assert.Equal(@"rgb(90, 94, 237)", backgroundColor);
Assert.Equal(@"rgb(255, 255, 255)", foregroundColor);
Assert.Equal(@"5px", margin);
}
public void WorkWithExCss()
{
// Could read in a file here...
string css = "html{ background-color: #5a5eed; color: #FFFFFF; margin: 5px; } h2{ background-color: red }";
var stylesheet = new ExCSS.StylesheetParser().Parse(css);
// Get the info out - long hand
//var info = stylesheet.Children.First(c => ((ExCSS.StyleRule)c).SelectorText == "html") as ExCSS.StyleRule;
//var selector = info.SelectorText;
//var firstCssProperty = info.Style.BackgroundColor;
// Get the info out - New way
var info = stylesheet.StyleRules.First() as ExCSS.StyleRule;
var selector = info.SelectorText;
var backgroundColor = info.Style.BackgroundColor;
var foregroundColor = info.Style.Color;
var margin = info.Style.Margin;
//// Create a new stylesheet
var newParser = new ExCSS.StylesheetParser();
ExCSS.StyleRule r = new ExCSS.StyleRule(newParser);
r.SelectorText = "h1";
r.Style.BackgroundColor = "red";
ExCSS.StyleRule r2 = new ExCSS.StyleRule(newParser);
r2.SelectorText = "h2";
r2.Style.BackgroundColor = "green";
var newstylesheet = r.ToCss() + System.Environment.NewLine + r2.ToCss();
}
public void CreateStylesheet_WithCssProperties_ExpectStandardStringBack()
{
// Arrange
string expectedResult = @"h1 { background-color: rgb(255, 0, 0) }" + Environment.NewLine
+ "h2 { background-color: rgb(0, 128, 0) }";
var newParser = new ExCSS.StylesheetParser();
ExCSS.StyleRule r = new ExCSS.StyleRule(newParser);
r.SelectorText = "h1";
r.Style.BackgroundColor = "red";
ExCSS.StyleRule r2 = new ExCSS.StyleRule(newParser);
r2.SelectorText = "h2";
r2.Style.BackgroundColor = "green";
// Act
var newstylesheet = r.ToCss() + System.Environment.NewLine + r2.ToCss();
// Assert
Assert.Equal(expectedResult, newstylesheet);
}
void Run()
{
if (File.Exists(outputName))
{
File.Delete(outputName);
}
var parser = new ExCSS.StylesheetParser();
var css = File.ReadAllText("Site.css");
var sheet = parser.Parse(css);
var doc = new Document();
//doc.DefaultPageSetup.Orientation = Orientation.Portrait;
//doc.DefaultPageSetup.PageFormat = PageFormat.A4;
//doc.DefaultPageSetup.FooterDistance = Unit.FromCentimeter(0.01);
Func<string, byte[]> imageProc = s =>
{
var i = System.Drawing.Image.FromFile(s);
var ms = new MemoryStream();
i.Save(ms, System.Drawing.Imaging.ImageFormat.Jpeg);
return ms.ToArray();
};
var section = doc.AddSection();
var html = File.ReadAllText("example.html");
section.AddHtml(sheet, html, new HtmlConverter(imageProc));
var renderer = new PdfDocumentRenderer();
renderer.Document = doc;
renderer.RenderDocument();
renderer.Save(outputName);
Process.Start(outputName);
}
public static void InlineCssIntoHtml(HtmlAgilityPack.HtmlDocument doc)
{
var styleTags = doc.DocumentNode.SelectNodes("descendant-or-self::style");
if (styleTags != null)
{
//we only need to try and inline the css is there is any to inline in the first place
var cssParser = new ExCSS.StylesheetParser();
var styles = styleTags.Select(x => cssParser.Parse(x.InnerText));
var allElements = doc.DocumentNode.SelectNodes("descendant-or-self::*");
Dictionary<HtmlNode, List<ScopedDeclaration>> matches = new Dictionary<HtmlNode, List<ScopedDeclaration>>();
foreach (var n in allElements)
{
foreach (var r in styles.SelectMany(x => x.RuleSets))
{
var matchedSelectors = n.Matches(r.Selectors);
if (matchedSelectors.Any())
{
if (!matches.ContainsKey(n))
{
matches.Add(n, new List<ScopedDeclaration>());
}
var matchedDeclerations = r.Declarations.SelectMany(x => matchedSelectors.Select(y => new ScopedDeclaration(x, y)));
matches[n].AddRange(matchedDeclerations);
//TODO update the appending css rule to make sure the correctly prioritised rule is used
if (n.Attributes.Contains("style"))
{
var inlineStyles = n.Attributes["style"].Value;
var inline = cssParser.Parse("* { " + inlineStyles + "}")
.RuleSets.Single()
.Declarations
.Select(x => new ScopedDeclaration(x));
matches[n].AddRange(inline);
}
}
}
}
//go through and update all styles
foreach (var nodeRules in matches)
{
var node = nodeRules.Key;
var declerations = nodeRules.Value.GroupBy(x => x.Decleration.Name).Select(x => x.OrderBy(r => r.Scope).First()).OrderBy(r => r.Scope);
StringBuilder stylesSB = new StringBuilder();
foreach (var d in declerations)
{
stylesSB.Append(d.Decleration.ToString());
stylesSB.Append(";");
}
if (!node.Attributes.Contains("style"))
{
node.Attributes.Add("style", stylesSB.ToString());
}
else
{
node.Attributes["style"].Value = stylesSB.ToString();
}
}
}
}
public static void InlineCssIntoHtml(HtmlAgilityPack.HtmlDocument doc)
{
var styleTags = doc.DocumentNode.SelectNodes("descendant-or-self::style");
if (styleTags != null)
{
//we only need to try and inline the css is there is any to inline in the first place
var cssParser = new ExCSS.StylesheetParser();
var styles = styleTags.Select(x => cssParser.Parse(x.InnerText));
var allElements = doc.DocumentNode.SelectNodes("descendant-or-self::*");
Dictionary <HtmlNode, List <ScopedDeclaration> > matches = new Dictionary <HtmlNode, List <ScopedDeclaration> >();
foreach (var n in allElements)
{
foreach (var r in styles.SelectMany(x => x.RuleSets))
{
var matchedSelectors = n.Matches(r.Selectors);
if (matchedSelectors.Any())
{
if (!matches.ContainsKey(n))
{
matches.Add(n, new List <ScopedDeclaration>());
}
var matchedDeclerations = r.Declarations.SelectMany(x => matchedSelectors.Select(y => new ScopedDeclaration(x, y)));
matches[n].AddRange(matchedDeclerations);
//TODO update the appending css rule to make sure the correctly prioritised rule is used
if (n.Attributes.Contains("style"))
{
var inlineStyles = n.Attributes["style"].Value;
var inline = cssParser.Parse("* { " + inlineStyles + "}")
.RuleSets.Single()
.Declarations
.Select(x => new ScopedDeclaration(x));
matches[n].AddRange(inline);
}
}
}
}
//go through and update all styles
foreach (var nodeRules in matches)
{
var node = nodeRules.Key;
var declerations = nodeRules.Value.GroupBy(x => x.Decleration.Name).Select(x => x.OrderBy(r => r.Scope).First()).OrderBy(r => r.Scope);
StringBuilder stylesSB = new StringBuilder();
foreach (var d in declerations)
{
stylesSB.Append(d.Decleration.ToString());
stylesSB.Append(";");
}
if (!node.Attributes.Contains("style"))
{
node.Attributes.Add("style", stylesSB.ToString());
}
else
{
node.Attributes["style"].Value = stylesSB.ToString();
}
}
}
}
