public static string PiczUrl(this UrlHelper helper, string url, string hash = "")
{
var options = PiczOptions.Load();
var size = options.Sizes.OrderByDescending(s => s).FirstOrDefault();
return(PiczUrl(helper, url, size, hash));
}
public static MvcHtmlString PiczBackground(this HtmlHelper helper, string url, string id, string hash = "")
{
return(PiczBackground(helper, url, id, PiczOptions.Load(), hash));
}
private static decimal GetBreakpoint(PiczOptions options, int size)
{
return(Math.Round((size / 100M) * (100M - options.BackgroundAdjustmentPercent), 0));
}
public static MvcHtmlString PiczBackgroundAppend(this HtmlHelper helper, string url, string id, PiczOptions options, string hash = "")
{
var builder = new StringBuilder();
builder.AppendLine("<style scoped>");
bool isDefaultSet = false;
foreach (var size in options.Sizes.OrderByDescending(s => s))
{
var img = $"{url}?s={size}{BaseHelper.GetImageHashForUrl(hash)}";
var breakpoint = GetBreakpoint(options, size);
if (!isDefaultSet)
{
builder.AppendLine($"#{id} {{ background-image: url(\"{img}\") }}");
isDefaultSet = true;
}
builder.AppendLine($"@media only screen and (max-width: {breakpoint}px) {{ #{id} {{ background-image: url(\"{img}\") }} }} ");
}
builder.AppendLine("</style>");
return(MvcHtmlString.Create(builder.ToString()));
}
public static MvcHtmlString Picz(this HtmlHelper helper, string url, string sizes, object htmlAttributes, string hash = "")
{
return(Picz(helper, url, sizes, PiczOptions.Load(), htmlAttributes, hash));
}
public static MvcHtmlString PiczAppend(this HtmlHelper helper, string url, string sizes, PiczOptions options, object htmlAttributes, string hash = "")
{
var attributes = HtmlHelper.AnonymousObjectToHtmlAttributes(htmlAttributes);
var sourceSets = new List <string>();
foreach (var size in options.Sizes)
{
sourceSets.Add($"{url}?s={size}{BaseHelper.GetImageHashForUrl(hash)} {size}w");
}
var defaultSource = $"{url}?s={options.Sizes.Min()}{BaseHelper.GetImageHashForUrl(hash)}";
return(BuildImageTag(sizes, attributes, sourceSets, defaultSource));
}
