/// <summary>
/// Return background image style attribute
/// </summary>
/// <param name="htmlHelper">HtmlHelper</param>
/// <param name="image">The image</param>
/// <returns>The background image style attribute, or empty string if no image available</returns>
public static MvcHtmlString BgImgStyle(this HtmlHelper htmlHelper, MediaItem image)
{
if (image == null || String.IsNullOrEmpty(image.Url))
{
return null;
}
return new MvcHtmlString(String.Format("style=\"background-image:url('{0}');\"", image.Url));
}
public static MvcHtmlString Media(this HtmlHelper helper, MediaItem media, double aspect, string cssClass = null)
{
return Media(helper, media, null, aspect, cssClass);
}
public static MvcHtmlString Media(this HtmlHelper helper, MediaItem media, string widthFactor, string cssClass = null)
{
return Media(helper, media, widthFactor, SiteConfiguration.MediaHelper.DefaultMediaAspect, cssClass);
}
public static MvcHtmlString Media(this HtmlHelper helper, MediaItem media)
{
return Media(helper, media, null);
}
/// <summary>
/// Write out an media item with a responsive url
/// </summary>
/// <param name="helper"></param>
/// <param name="media">The media item to write out</param>
/// <param name="widthFactor">The factor to apply to the width - can be % (eg "100%") or absolute (eg "120")</param>
/// <param name="aspect">The aspect ratio for the image</param>
/// <param name="cssClass">Css class to apply to img tag</param>
/// <param name="containerSize">The size (in grid column units) of the containing element</param>
/// <returns>Complete media markup with all required attributes</returns>
public static MvcHtmlString Media(this HtmlHelper helper, MediaItem media, string widthFactor, double aspect, string cssClass = null, int containerSize = 0)
{
if (media == null)
{
return null;
}
//We read the container size (based on bootstrap grid) from the view bag
//This means views can be independent of where they are rendered and do not
//need to know their width
if (containerSize == 0)
{
containerSize = helper.ViewBag.ContainerSize;
}
if (media is Image)
{
return Image(helper, (Image)media, widthFactor, aspect, cssClass, containerSize);
}
if (media is YouTubeVideo)
{
return YouTubeVideo(helper, (YouTubeVideo)media, widthFactor, aspect, cssClass, containerSize);
}
if (media is Download)
{
return Download(helper, (Download)media);
}
return null;
}
/// <summary>
/// Write out a media item with a responsive url
/// </summary>
/// <param name="helper"></param>
/// <param name="media">The media item to write out</param>
/// <param name="widthFactor">The factor to apply to the width - can be % (eg "100%") or absolute (eg "120")</param>
/// <param name="aspect">The aspect ratio for the image</param>
/// <param name="cssClass">Css class to apply to img tag</param>
/// <param name="containerSize">The size (in grid column units) of the containing element</param>
/// <returns>Complete media markup with all required attributes</returns>
public static MvcHtmlString Media(this HtmlHelper helper, MediaItem media, string widthFactor, double aspect, string cssClass = null, int containerSize = 0)
{
using (new Tracer(helper, media, widthFactor, aspect, cssClass, containerSize))
{
if (media == null)
{
return MvcHtmlString.Empty;
}
//We read the container size (based on bootstrap grid) from the view bag
//This means views can be independent of where they are rendered and do not
//need to know their width
if (containerSize == 0)
{
containerSize = helper.ViewBag.ContainerSize;
}
return new MvcHtmlString(media.ToHtml(widthFactor, aspect, cssClass, containerSize));
}
}
public static MvcHtmlString Download(this HtmlHelper helper, MediaItem download)
{
using (new Tracer(helper, download))
{
if (download == null)
{
return MvcHtmlString.Empty;
}
return new MvcHtmlString(download.ToHtml(null));
}
}
public static MvcHtmlString YouTubeVideo(this HtmlHelper helper, MediaItem video, string widthFactor, double aspect, string cssClass, int containerSize)
{
return Media(helper, video, widthFactor, aspect, cssClass, containerSize);
}
public static MvcHtmlString Image(this HtmlHelper helper, MediaItem image, string widthFactor, double aspect, string cssClass = null, int containerSize = 0)
{
return Media(helper, image, widthFactor, aspect, cssClass, containerSize);
}
