Add external_url to article header if the article is a link-blog style article. Fixes #2569

Shared/Article Rendering/ArticleRenderer.swift

@@ -152,7 +152,19 @@ private extension ArticleRenderer {
 		
 		let title = titleOrTitleLink()
 		d["title"] = title
-
+		
+		if let externalLink = article.externalURL, externalLink != article.preferredLink {
+			var displayLink = externalLink.strippingHTTPOrHTTPSScheme
+			if displayLink.count > 40 {
+				displayLink = displayLink.prefix(40).appending("...")
+			}
+			let regarding = NSLocalizedString("Regarding", comment: "Regarding")
+			let externalLinkString = "\(regarding): <a href=\"\(externalLink)\">\(displayLink)</a>"
+			d["external_link"] = externalLinkString
+		} else {
+			d["external_link"] = ""
+		}
+		
 		d["body"] = body
 
 		var components = URLComponents()

Shared/Article Rendering/shared.css

@@ -78,6 +78,10 @@ body > .systemMessage {
 	color: var(--feedlink-color);
 }
 
+.externalLink {
+	font-style: italic;
+}
+
 .avatar img {
 	border-radius: 4px;
 }

Shared/Article Rendering/template.html

@@ -10,5 +10,6 @@
 <article>
 <div class="articleTitle"><h1>[[title]]</h1></div>
 <div class="[[dateline_style]]">[[date_medium]]</div>
+<div class="externalLink">[[external_link]]</div>
 <div class="articleBody">[[body]]</div>
 </article>