public IScriptOutput Generate(IScriptGenerationInfo info)
{
if (info == null)
{
throw new ArgumentNullException("info");
}
var output = new ScriptOutput();
switch (info.Type)
{
case ScriptType.JavaScript:
output.ContentType = @"application/javascript";
break;
case ScriptType.Stylesheet:
output.ContentType = @"text/css";
break;
}
IScriptFileList list = ListForType(info.Type);
IEnumerable<IScriptInfo> scripts = list.ScriptsForArea(info.Area);
var scriptInfos = scripts as IScriptInfo[] ?? scripts.ToArray();
var hash = GetHash(scriptInfos);
var appKey = CreateKey(info.Type) + hash;
output.FromCache = true;
output.LastModified = scriptInfos.Any() ? scriptInfos.Max(s => s.LastModified) : DateTime.MinValue;
output.Output = _cacheManager.Get(appKey, () =>
{
output.FromCache = false;
return Merge(info, scriptInfos);
});
return output;
}
private string Merge(IScriptGenerationInfo info, IEnumerable<IScriptInfo> scripts)
{
var scriptbody = new StringBuilder();
scriptbody.AppendFormat("/* Generated: {0} */\n", DateTime.Now.ToString());
var scriptsToRender = scripts;
var minify = bool.Parse(ConfigurationManager.AppSettings["SJ.Compress"]);
foreach (var script in scriptsToRender)
{
if (!script.IsInline && !string.IsNullOrWhiteSpace(script.LocalPath))
{
using (var fs = new FileStream(script.LocalPath, FileMode.Open, FileAccess.Read, FileShare.ReadWrite))
{
using (var file = new StreamReader(fs))
{
var fileContent = file.ReadToEnd();
if (info.Type == ScriptType.Stylesheet)
{
var fromUri = new Uri(HttpContext.Current.Server.MapPath("~/"));
var toUri = new Uri(new FileInfo(script.LocalPath).DirectoryName);
string imageUrlRoot = (HttpContext.Current.Request.ApplicationPath.EndsWith("/")) ? HttpContext.Current.Request.ApplicationPath : HttpContext.Current.Request.ApplicationPath + "/";
imageUrlRoot += fromUri.MakeRelativeUri(toUri).ToString();
fileContent = fileContent.Replace("url(\"images", "url(\"" + imageUrlRoot + "/images");
}
if (!minify)
{
scriptbody.AppendLine(String.Format("/* {0} */\n", script.Url));
}
scriptbody.AppendLine(fileContent);
file.Close();
}
}
}
else if (script.IsInline)
{
scriptbody.AppendLine(String.Format("/* {0} */\n", script.UniqueKey));
scriptbody.AppendLine(script.Source);
}
}
string scriptOutput = scriptbody.ToString();
if (minify)
{
switch (info.Type)
{
case ScriptType.JavaScript:
var jsCompressor = new Yahoo.Yui.Compressor.JavaScriptCompressor();
scriptOutput = jsCompressor.Compress(scriptOutput);
break;
case ScriptType.Stylesheet:
var cssCompressor = new Yahoo.Yui.Compressor.CssCompressor();
scriptOutput = cssCompressor.Compress(scriptOutput);
break;
}
}
return scriptOutput;
}
