public override VirtualFile GetFile(string virtualPath)
{
if (ThemeHelper.PathIsThemeVars(virtualPath))
{
var theme = ThemeHelper.ResolveCurrentTheme();
int storeId = ThemeHelper.ResolveCurrentSiteId();
return(new ThemeVarsVirtualFile(virtualPath, theme.ThemeName, storeId));
}
var result = GetResolveResult(virtualPath);
if (result != null)
{
if (!result.IsExplicit)
{
return(new InheritedVirtualThemeFile(result));
}
else
{
virtualPath = result.OriginalVirtualPath;
}
}
return(_previous.GetFile(virtualPath));
}
public static MvcHtmlString ThemeVarEditor(this HtmlHelper html, ThemeVariableInfo info, object value)
{
Guard.ArgumentNotNull(info, "info");
string expression = html.NameForThemeVar(info);
var strValue = string.Empty;
var arrValue = value as string[];
if (arrValue != null)
{
strValue = arrValue.Length > 0 ? arrValue[0] : value.ToString();
}
else
{
strValue = value.ToString();
}
var currentTheme = ThemeHelper.ResolveCurrentTheme();
var isDefault = strValue.IsCaseInsensitiveEqual(info.DefaultValue);
MvcHtmlString control;
if (info.Type == ThemeVariableType.Color)
{
control = html.ColorBox(expression, strValue, info.DefaultValue);
}
else if (info.Type == ThemeVariableType.Boolean)
{
control = html.CheckBox(expression, strValue.ToBool());
}
else if (info.Type == ThemeVariableType.Select)
{
control = ThemeVarSelectEditor(html, info, expression, strValue);
}
else
{
control = html.TextBox(expression, isDefault ? "" : strValue, new { placeholder = info.DefaultValue });
}
if (currentTheme != info.Manifest)
{
// the variable is inherited from a base theme: display an info badge
var chainInfo = "<span class='themevar-chain-info'><i class='fa fa-chain fa-flip-horizontal'></i> {0}</span>".FormatCurrent(info.Manifest.ThemeName);
return(MvcHtmlString.Create(control.ToString() + chainInfo));
}
else
{
return(control);
}
}
public override CacheDependency GetCacheDependency(string virtualPath, IEnumerable virtualPathDependencies, DateTime utcStart)
{
bool isLess;
bool isBundle;
if (!ThemeHelper.IsStyleSheet(virtualPath, out isLess, out isBundle))
{
return(GetCacheDependencyInternal(virtualPath, virtualPathDependencies, utcStart));
}
else
{
if (!isLess && !isBundle)
{
// it's a static css file (no bundle, no less)
return(GetCacheDependencyInternal(virtualPath, virtualPathDependencies, utcStart));
}
var arrPathDependencies = virtualPathDependencies.Cast <string>().ToArray();
// determine the virtual themevars.less import reference
var themeVarsFile = arrPathDependencies.Where(x => ThemeHelper.PathIsThemeVars(x)).FirstOrDefault();
if (themeVarsFile.IsEmpty())
{
// no themevars import... so no special considerations here
return(GetCacheDependencyInternal(virtualPath, virtualPathDependencies, utcStart));
}
// exclude the themevars import from the file dependencies list,
// 'cause this one cannot be monitored by the physical file system
var fileDependencies = arrPathDependencies.Except(new string[] { themeVarsFile });
if (arrPathDependencies.Any())
{
int storeId = ThemeHelper.ResolveCurrentSiteId();
var theme = ThemeHelper.ResolveCurrentTheme();
// invalidate the cache when variables change
string cacheKey = AspNetCache.BuildKey(ModelCacheEventConsumer.BuildThemeVarsCacheKey(theme.ThemeName, storeId));
var cacheDependency = new CacheDependency(MapDependencyPaths(fileDependencies), new string[] { cacheKey }, utcStart);
return(cacheDependency);
}
return(null);
}
}
/// <summary>
/// Tries to resolve a file up in the current theme's hierarchy chain.
/// </summary>
/// <param name="virtualPath">The original virtual path of the theme file</param>
/// <returns>
/// If the current working themme is based on another theme AND the requested file
/// was physically found in the theme's hierarchy chain, an instance of <see cref="InheritedThemeFileResult" /> will be returned.
/// In any other case the return value is <c>null</c>.
/// </returns>
public InheritedThemeFileResult Resolve(string virtualPath)
{
Guard.ArgumentNotEmpty(() => virtualPath);
virtualPath = VirtualPathUtility.ToAppRelative(virtualPath);
if (!ThemeHelper.PathIsInheritableThemeFile(virtualPath))
{
return(null);
}
bool isExplicit = false;
string requestedThemeName;
string relativePath;
string query;
virtualPath = TokenizePath(virtualPath, out requestedThemeName, out relativePath, out query);
Func <InheritedThemeFileResult> nullOrFile = () =>
{
if (isExplicit)
{
return(new InheritedThemeFileResult {
IsExplicit = true, OriginalVirtualPath = virtualPath
});
}
return(null);
};
ThemeManifest currentTheme;
var isAdmin = EngineContext.Current.Resolve <IWorkContext>().IsAdmin; // ThemeHelper.IsAdminArea()
if (isAdmin)
{
currentTheme = _themeRegistry.GetThemeManifest(requestedThemeName);
}
else
{
bool isLess;
bool isBundle;
if (ThemeHelper.IsStyleSheet(relativePath, out isLess, out isBundle) && isLess)
{
// special consideration for LESS files: they can be validated
// in the backend. For validation, a "theme" query is appended
// to the url. During validation we must work with the actual
// requested theme instead dynamically resolving the working theme.
var httpContext = HttpContext.Current;
if (httpContext != null && httpContext.Request != null)
{
var qs = httpContext.Request.QueryString;
if (qs["theme"].HasValue())
{
EngineContext.Current.Resolve <IThemeContext>().SetRequestTheme(qs["theme"]);
}
}
}
if (isLess && query != null && query.StartsWith("explicit", StringComparison.OrdinalIgnoreCase))
{
// special case to support LESS @import declarations
// within inherited LESS files. Snenario: an inheritor wishes to
// include the same file from it's base theme (e.g. custom.less) just to tweak it
// a bit for his child theme. Without the 'explicit' query the resolution starting point
// for custom.less would be the CURRENT theme's folder, and NOT the requested one's,
// which inevitably would result in a cyclic dependency.
currentTheme = _themeRegistry.GetThemeManifest(requestedThemeName);
isExplicit = true;
}
else
{
currentTheme = ThemeHelper.ResolveCurrentTheme();
}
if (currentTheme.BaseTheme == null)
{
// dont't bother resolving files: the current theme is not inherited.
// Let the current VPP do the work.
return(nullOrFile());
}
}
if (!currentTheme.ThemeName.Equals(requestedThemeName, StringComparison.OrdinalIgnoreCase))
{
if (!_themeRegistry.IsChildThemeOf(currentTheme.ThemeName, requestedThemeName))
{
return(nullOrFile());
}
}
var fileKey = new FileKey(currentTheme.ThemeName, relativePath);
var result = _files.GetOrAdd(fileKey, (k) =>
{
// ALWAYS begin the search with the current working theme's location!
string resultVirtualPath;
string resultPhysicalPath;
string actualLocation = LocateFile(currentTheme.ThemeName, relativePath, out resultVirtualPath, out resultPhysicalPath);
if (actualLocation != null)
{
return(new InheritedThemeFileResult
{
RelativePath = relativePath,
OriginalVirtualPath = virtualPath,
ResultVirtualPath = resultVirtualPath,
ResultPhysicalPath = resultPhysicalPath,
OriginalThemeName = requestedThemeName,
ResultThemeName = actualLocation
});
}
return(null);
});
if (result == null)
{
return(nullOrFile());
}
return(result);
}