/// <summary>
///
/// </summary>
/// <param name="cssText"></param>
/// <param name="BaseHref">if null, URL must contains http, otherwise, return null</param>
/// <returns></returns>
public static CSSImportRule deserializeCSSImportRule(string cssText, string BaseHref)
{
string importPattern = @"@import\s+(url\(\'(?<url>.*?)\'\)|url\(\""(?<url>.*?)\""\)|url\((?<url>.*?)\)|(?<url>\S*?))(\s+(?<media>.*?)\;|\;|\s*\;)";
Match m = Regex.Match(cssText, importPattern);
if (m.Success)
{
string medias = m.Groups["media"].Value;
string url = m.Groups["url"].Value;
if (string.IsNullOrEmpty(url))
{
return(null);
}
if (!url.ToLower().StartsWith("http://"))
{
url = PathHelper.combine(BaseHref, url);
}
CSSImportRule newRule = new CSSImportRule();
newRule.href = url;
if (!string.IsNullOrEmpty(medias))
{
string[] mediaArray = medias.Split(',');
MediaList mediaList = new MediaList();
foreach (var item in mediaArray)
{
mediaList.appendMedium(item);
}
newRule.media = mediaList;
}
CSSStyleSheet importStyleSheet = deserializeCSSStyleSheet(string.Empty, url);
if (importStyleSheet != null)
{
newRule.stylesheet = importStyleSheet;
return(newRule);
}
else
{
return(null);
}
}
else
{
return(null);
}
}
/// <summary>
///
/// </summary>
/// <param name="cssText">The text that contains the media blocks</param>
/// <returns></returns>
public static CSSMediaRule deserializeCSSMediaRule(string cssText)
{
CSSMediaRule mediaRule = new CSSMediaRule();
int firstBracket = cssText.IndexOf("{");
int lastBracket = cssText.LastIndexOf("}");
if (firstBracket < 0 || lastBracket < 0)
{
return(null);
}
string ruletext = cssText.Substring(firstBracket + 1, lastBracket - firstBracket - 1);
mediaRule.cssText = ruletext;
int mediaIndex = cssText.IndexOf("@media", StringComparison.OrdinalIgnoreCase); // this should be 0.
string mediatext = cssText.Substring(mediaIndex + 6, firstBracket - mediaIndex - 1 - 5).Trim();
mediaRule.selectorText = mediatext;
if (string.IsNullOrEmpty(mediatext))
{
return(null);
}
string[] mediaQuery = mediatext.Split(',');
MediaList medialist = new MediaList();
foreach (var item in mediaQuery)
{
medialist.appendMedium(item);
}
mediaRule.media = medialist;
CSSRuleList rulelist = deserializeRuleList(ruletext, null);
foreach (var item in rulelist.item)
{
item.parentRule = mediaRule;
}
mediaRule.cssRules = rulelist;
return(mediaRule);
}