From 6169f9cafaef0cfebe50244c0eee41d4f6452496 Mon Sep 17 00:00:00 2001
From: Till Grallert <till.grallert@fu-berlin.de>
Date: Thu, 10 Sep 2020 16:38:18 +0200
Subject: [PATCH] Moved display parameters for IIIF to the parameter stylesheet

---
 boilerplate/xslt/teibp_parameters.xsl |  2 ++
 boilerplate/xslt/teibp_pb.xsl         | 11 +++++------
 2 files changed, 7 insertions(+), 6 deletions(-)

diff --git a/boilerplate/xslt/teibp_parameters.xsl b/boilerplate/xslt/teibp_parameters.xsl
index 3cb8626..dd87aa4 100644
--- a/boilerplate/xslt/teibp_parameters.xsl
+++ b/boilerplate/xslt/teibp_parameters.xsl
@@ -31,6 +31,8 @@
     <xsl:param name="p_display-line-breaks" select="false()"/>
     <!-- select whether you want to display editorial changes; default: false() -->
     <xsl:param name="p_display-editorial-changes" select="false()"/>
+    <!-- select image quality for facsimiles served through IIIF. To balance readability with bandwidth, images are currently set to a width of 800px and grayscale -->
+    <xsl:param name="p_iiif-settings-display" select="'/full/800,/0/gray.jpg'"/>
     <!-- select whether you want to process XInclude; default: true()  -->
     <xsl:param name="p_process-xinclude" select="true()"/>
     <!-- select whether you want to use inline CSS for the display; default: true() -->
diff --git a/boilerplate/xslt/teibp_pb.xsl b/boilerplate/xslt/teibp_pb.xsl
index 9ec0859..9e4a882 100644
--- a/boilerplate/xslt/teibp_pb.xsl
+++ b/boilerplate/xslt/teibp_pb.xsl
@@ -10,9 +10,8 @@
     <!-- construct the image URL on the fly -->
     <xsl:variable name="v_volume" select="$vgBiblStructSource/tei:monogr/tei:biblScope[@unit = 'volume']/@n"/>
     <xsl:variable name="v_issue" select="$vgBiblStructSource/tei:monogr/tei:biblScope[@unit = 'issue']/@n"/>
-    <!-- IIIF URLs -->
+    <!-- IIIF URLs: establish the pattern to check for -->
     <xsl:variable name="v_iiif-settings-max" select="'/full/2000,/0/default.jpg'"/>
-    <xsl:variable name="v_iiif-settings-display" select="'/full/800,/0/gray.jpg'"/>
 
     <!-- could also select pb[@facs] -->
     <xsl:template match="tei:pb[@ed = 'print']">
@@ -51,10 +50,10 @@
                 <!-- sequence of providers and protocolls is currently hardcoded and can be changed to taste -->
                 <!-- iiif -->   
                 <xsl:when test="$v_graphic[contains(@url, $v_iiif-settings-max)]">
-                    <xsl:value-of select="concat(substring-before($v_graphic[contains(@url, $v_iiif-settings-max)][1]/@url, $v_iiif-settings-max), $v_iiif-settings-display)"/>
+                    <xsl:value-of select="concat(substring-before($v_graphic[contains(@url, $v_iiif-settings-max)][1]/@url, $v_iiif-settings-max), $p_iiif-settings-display)"/>
                 </xsl:when>
                 <xsl:when test="$v_graphic[@type='iiif']">
-                    <xsl:value-of select="concat($v_graphic[@type='iiif'][1]/@url, $v_iiif-settings-display)"/>
+                    <xsl:value-of select="concat($v_graphic[@type='iiif'][1]/@url, $p_iiif-settings-display)"/>
                 </xsl:when>
                 <xsl:when test="$v_graphic[starts-with(@url, 'https://eap.')]">
                     <xsl:value-of select="$v_graphic[starts-with(@url, 'https://eap.')][1]/@url"/>
@@ -130,10 +129,10 @@
                     <xsl:attribute name="href">
                         <xsl:choose>
                             <xsl:when test="contains(@url, $v_iiif-settings-max)">
-                                <xsl:value-of select="concat(substring-before(@url, $v_iiif-settings-max), $v_iiif-settings-display)"/>
+                                <xsl:value-of select="concat(substring-before(@url, $v_iiif-settings-max), $p_iiif-settings-display)"/>
                             </xsl:when>
                             <xsl:when test="@type='iiif'">
-                                <xsl:value-of select="concat(@url, $v_iiif-settings-display)"/>
+                                <xsl:value-of select="concat(@url, $p_iiif-settings-display)"/>
                             </xsl:when>
                             <xsl:otherwise>
                                 <xsl:value-of select="@url"/>