/// <summary>
/// Converts CSSX to CSS, using the current theme
/// </summary>
/// <param name="Cssx">CSSX</param>
/// <param name="Session">Current session</param>
/// <returns>CSS</returns>
public static string Convert(string Cssx, Variables Session)
{
bool Pushed = false;
Session.Lock();
try
{
Session.Push();
Pushed = true;
ThemeDefinition Def = Theme.CurrerntTheme;
if (Def != null)
{
Session["TextColor"] = Def.TextColor;
Session["BackgroundColor"] = Def.BackgroundColor;
Session["HeaderColor"] = Def.HeaderColor;
Session["HeaderTextColor"] = Def.HeaderTextColor;
Session["ButtonColor"] = Def.ButtonColor;
Session["ButtonTextColor"] = Def.ButtonTextColor;
Session["MenuTextColor"] = Def.MenuTextColor;
Session["EditColor"] = Def.EditColor;
Session["LinkColorUnvisited"] = Def.LinkColorUnvisited;
Session["LinkColorVisited"] = Def.LinkColorVisited;
Session["LinkColorHot"] = Def.LinkColorHot;
Session["BackgroundImages"] = Def.BackgroundImages;
Session["BannerImages"] = Def.BannerImages;
foreach (KeyValuePair <string, string> P in Def.GetCustomProperties())
{
Session[P.Key] = P.Value;
}
}
StringBuilder Result = new StringBuilder();
Expression Exp;
int i = 0;
int c = Cssx.Length;
int j, k;
string Script;
object Value;
while (i < c)
{
j = Cssx.IndexOf('¤', i);
if (j < 0)
{
break;
}
if (j > i)
{
Result.Append(Cssx.Substring(i, j - i));
}
k = Cssx.IndexOf('¤', j + 1);
if (k < 0)
{
break;
}
Script = Cssx.Substring(j + 1, k - j - 1);
Exp = new Expression(Script);
Value = Exp.Evaluate(Session);
if (Value is SKColor Color)
{
if (Color.Alpha == 255)
{
Result.Append('#');
Result.Append(Color.Red.ToString("X2"));
Result.Append(Color.Green.ToString("X2"));
Result.Append(Color.Blue.ToString("X2"));
}
else
{
Result.Append("rgba(");
Result.Append(Color.Red.ToString());
Result.Append(',');
Result.Append(Color.Green.ToString());
Result.Append(',');
Result.Append(Color.Blue.ToString());
Result.Append(',');
Result.Append(Expression.ToString(Color.Alpha / 255.0));
Result.Append(')');
}
}
else if (Value is string s)
{
Result.Append(s);
}
else
{
Result.Append(Expression.ToString(Value));
}
i = k + 1;
}
if (i < c)
{
Result.Append(Cssx.Substring(i));
}
return(Result.ToString());
}
finally
{
if (Pushed)
{
Session.Pop();
}
Session.Release();
}
}
/// <summary>
/// Performs the actual conversion.
/// </summary>
/// <param name="FromContentType">Content type of the content to convert from.</param>
/// <param name="From">Stream pointing to binary representation of content.</param>
/// <param name="FromFileName">If the content is coming from a file, this parameter contains the name of that file.
/// Otherwise, the parameter is the empty string.</param>
/// <param name="LocalResourceName">Local resource name of file, if accessed from a web server.</param>
/// <param name="URL">URL of resource, if accessed from a web server.</param>
/// <param name="ToContentType">Content type of the content to convert to.</param>
/// <param name="To">Stream pointing to where binary representation of content is to be sent.</param>
/// <param name="Session">Session states.</param>
/// <returns>If the result is dynamic (true), or only depends on the source (false).</returns>
public bool Convert(string FromContentType, Stream From, string FromFileName, string LocalResourceName, string URL, string ToContentType,
Stream To, Variables Session)
{
string Cssx;
using (StreamReader rd = new StreamReader(From))
{
Cssx = rd.ReadToEnd();
}
Session.Push();
try
{
ThemeDefinition Def = Theme.CurrerntTheme;
if (Def != null)
{
Session["TextColor"] = Def.TextColor;
Session["BackgroundColor"] = Def.BackgroundColor;
Session["HeaderColor"] = Def.HeaderColor;
Session["HeaderTextColor"] = Def.HeaderTextColor;
Session["ButtonColor"] = Def.ButtonColor;
Session["ButtonTextColor"] = Def.ButtonTextColor;
Session["MenuTextColor"] = Def.MenuTextColor;
Session["EditColor"] = Def.EditColor;
Session["LinkColorUnvisited"] = Def.LinkColorUnvisited;
Session["LinkColorVisited"] = Def.LinkColorVisited;
Session["LinkColorHot"] = Def.LinkColorHot;
Session["BackgroundImages"] = Def.BackgroundImages;
Session["BannerImages"] = Def.BannerImages;
foreach (KeyValuePair <string, string> P in Def.GetCustomProperties())
{
Session[P.Key] = P.Value;
}
}
StringBuilder Result = new StringBuilder();
Expression Exp;
int i = 0;
int c = Cssx.Length;
int j, k;
string Script;
object Value;
while (i < c)
{
j = Cssx.IndexOf('¤', i);
if (j < 0)
{
break;
}
if (j > i)
{
Result.Append(Cssx.Substring(i, j - i));
}
k = Cssx.IndexOf('¤', j + 1);
if (k < 0)
{
break;
}
Script = Cssx.Substring(j + 1, k - j - 1);
Exp = new Expression(Script);
Value = Exp.Evaluate(Session);
if (Value is SKColor Color)
{
if (Color.Alpha == 255)
{
Result.Append('#');
Result.Append(Color.Red.ToString("X2"));
Result.Append(Color.Green.ToString("X2"));
Result.Append(Color.Blue.ToString("X2"));
}
else
{
Result.Append("rgba(");
Result.Append(Color.Red.ToString());
Result.Append(',');
Result.Append(Color.Green.ToString());
Result.Append(',');
Result.Append(Color.Blue.ToString());
Result.Append(',');
Result.Append(Expression.ToString(Color.Alpha / 255.0));
Result.Append(')');
}
}
else if (Value is string s)
{
Result.Append(s);
}
else
{
Result.Append(Expression.ToString(Value));
}
i = k + 1;
}
if (i < c)
{
Result.Append(Cssx.Substring(i));
}
byte[] Data = Utf8WithBOM.GetBytes(Result.ToString());
To.Write(Data, 0, Data.Length);
}
finally
{
Session.Pop();
}
return(false);
}