/// <summary>
/// Enclosureタグから画像URLを取得する
/// </summary>
/// <param name="item"></param>
/// <returns></returns>
public static string GetImageUrl(this BaseFeedItem item)
{
FeedItemEnclosure enclosure = null;
switch (item)
{
case Rss092FeedItem i:
enclosure = i.Enclosure;
break;
case Rss20FeedItem i:
enclosure = i.Enclosure;
break;
default:
return(null);
}
if (enclosure?.MediaType == null)
{
return(null);
}
return(enclosure.MediaType.StartsWith("image") ? enclosure.Url : null);
}
/// <summary>
/// Initializes a new instance of the <see cref="FeedItem"/> class.
/// Creates the generic feed item object based on a parsed <see cref="BaseFeedItem"/>
/// </summary>
/// <param name="feedItem">BaseFeedItem which is a <see cref="Rss20FeedItem"/> , <see cref="Rss10FeedItem"/>, or another.</param>
public FeedItem(BaseFeedItem feedItem)
{
this.Title = feedItem.Title;
this.Link = feedItem.Link;
this.Categories = new List <string>();
this.SpecificItem = feedItem;
}
private string GetAudioUrl(BaseFeedItem specificItem)
{
if (specificItem is MediaRssFeedItem mediaItem)
{
return(mediaItem.Enclosure.Url);
}
return(specificItem.Link);
}
private static TitleResult GetTitleResult(BaseFeedItem i)
{
return(new TitleResult
{
Author = i.Author,
Categories = i.Categories.ToList(),
Content = i.Content,
DatePublished = i.DatePublished,
Id = i.Id,
ExtraInfoUrl = i.Link,
Title = i.Title
});
}
/// <inheritdoc />
public FeedItemExt(BaseFeedItem feedItem) : base(feedItem)
{
}
public ParseFeedItem(string feedUri, BaseFeedItem feedItem)
{
FeedItem = feedItem;
FeedUri = feedUri;
}
public Article(BaseFeedItem item)
{
Headline = item.Title;
URL = item.Link;
DatePublished = item.DatePublished;
}
public EntryViewModel(BaseFeedItem model)
{
this.model = model;
}
