From 77197c497797be836370c09086c50fc5e7ecf833 Mon Sep 17 00:00:00 2001
From: vv01f <vv01f@users.noreply.c3d2.de>
Date: Tue, 11 Jul 2023 20:10:56 +0200
Subject: [PATCH] fallback image per class

---
 xsl/xhtml5.xsl | 21 ++++++++++++++++-----
 1 file changed, 16 insertions(+), 5 deletions(-)

diff --git a/xsl/xhtml5.xsl b/xsl/xhtml5.xsl
index 7c837196a..04121338f 100644
--- a/xsl/xhtml5.xsl
+++ b/xsl/xhtml5.xsl
@@ -385,11 +385,22 @@
       </xsl:if>
 
       <a href="{link}">
-	<xsl:if test="content-image">
-	  <xsl:attribute name="style">
-	    background-image: url('<xsl:value-of select="content-image"/>');
-	  </xsl:attribute>
-	</xsl:if>
+	<xsl:choose>
+		<xsl:when test="content-image">
+			<xsl:attribute name="style">
+				background-image: url('<xsl:value-of select="content-image"/>');
+			</xsl:attribute>
+		</xsl:when>
+		<xsl:otherwise><!-- Fallback image -->
+			<xsl:choose><!-- depending on class -->
+				<!-- todo: random image from list (filenames might be links), maybe based on hash()  -->
+				<xsl:when test="@class = 'news'"><xsl:attribute name="style">background-image: url('images/news/gchq-hdr.jpg');</xsl:attribute></xsl:when>
+<!--
+				<xsl:when test="@class = 'wiki'"><xsl:attribute name="style">background-image: url('images/news/wikidata.png');</xsl:attribute></xsl:when>
+-->
+			</xsl:choose>
+		</xsl:otherwise>
+	</xsl:choose>
 
 	<xsl:apply-templates select="header"/>
 	<xsl:apply-templates select="footer"/>