From a20b727ab0e98efe55d981ee948b9e1b7c488f43 Mon Sep 17 00:00:00 2001
From: Owen Leonard <oleonard@myacpl.org>
Date: Mon, 13 Jul 2020 15:18:23 +0000
Subject: [PATCH] Bug 25984: Add minimum height and width to shelf browser
 covers

This patch adds a class to the shelf browser cover image links and a
style for these links defining a minimum height and width. This allows
the browser's default tab focus outline to be visible.

This patch also adds a check for an enabled cover image service before
displaying the cover image links.

This patch introduces whitespace changes so diff accordingly.

To test, apply the patch and rebuild the OPAC CSS
(https://wiki.koha-community.org/wiki/Working_with_SCSS_in_the_OPAC_and_staff_client).

- Enable the OPACShelfBrowser system preference.
- Enable at least one cover image service (Amazon, Google, Coce, etc).
- Locate a title in the OPAC which has items attached.
- On the bibliographic detail page, click the "Browse shelf" link in the
  table of holdings to display the shelf browser.
- Use the tab key to move the focus to cover images in the shelf
  browser.
- Confirm that the focus outline moves through each cover link whether
  or not there is a cover image available.
- Diable all cover image services.
- Test the shelf browser again and confirm that it's not necessary to
  tap through an empty row.

Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>

Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
---
 koha-tmpl/opac-tmpl/bootstrap/css/src/opac.scss    |  6 ++
 .../bootstrap/en/includes/shelfbrowser.inc         | 80 +++++++++++-----------
 2 files changed, 47 insertions(+), 39 deletions(-)

diff --git a/koha-tmpl/opac-tmpl/bootstrap/css/src/opac.scss b/koha-tmpl/opac-tmpl/bootstrap/css/src/opac.scss
index c30901390e..cf255ffec3 100644
--- a/koha-tmpl/opac-tmpl/bootstrap/css/src/opac.scss
+++ b/koha-tmpl/opac-tmpl/bootstrap/css/src/opac.scss
@@ -2731,6 +2731,12 @@ button {
         font-size: 110%;
         font-weight: bold;
         text-decoration: none;
+
+        &.shelfbrowser_cover {
+            min-height: 80px;
+            min-width: 80px;
+            display: inline-block;
+        }
     }
 
     #browser_previous {
diff --git a/koha-tmpl/opac-tmpl/bootstrap/en/includes/shelfbrowser.inc b/koha-tmpl/opac-tmpl/bootstrap/en/includes/shelfbrowser.inc
index 09408a5971..f7e35adc58 100644
--- a/koha-tmpl/opac-tmpl/bootstrap/en/includes/shelfbrowser.inc
+++ b/koha-tmpl/opac-tmpl/bootstrap/en/includes/shelfbrowser.inc
@@ -28,54 +28,56 @@
                                 [% img_title = item.biblionumber %]
                             [% END %]
 
-                            <a href="/cgi-bin/koha/opac-detail.pl?biblionumber=[% item.biblionumber | uri %]&amp;shelfbrowse_itemnumber=[% item.itemnumber | uri %]#shelfbrowser">
-                                [% IF ( OPACLocalCoverImages ) %]
-                                    <div title="[% img_title | html %]" class="[% item.biblionumber | html %] thumbnail-shelfbrowser" id="local-thumbnail-shelf-[% item.biblionumber | html %]"></div>
-                                [% END %]
-                                [% IF ( OPACAmazonCoverImages ) %]
-                                    [% IF ( item.browser_normalized_isbn ) %]
-                                        <img src="https://images-na.ssl-images-amazon.com/images/P/[% item.browser_normalized_isbn | html %].01._AA75_PU_PU-5_.jpg" alt="" />
-                                    [% ELSE %]
-                                        <span class="no-image">No cover image available</span>
+                            [% IF ( OPACLocalCoverImages || OPACAmazonCoverImages || ( SyndeticsEnabled && SyndeticsCoverImages ) || GoogleJackets || BakerTaylorEnabled || ( Koha.Preference('OpacCoce') && Koha.Preference('CoceProviders') ) || ( Koha.Preference('OPACCustomCoverImages') AND Koha.Preference('CustomCoverImagesURL') ) ) %]
+                                <a class="shelfbrowser_cover" href="/cgi-bin/koha/opac-detail.pl?biblionumber=[% item.biblionumber | uri %]&amp;shelfbrowse_itemnumber=[% item.itemnumber | uri %]#shelfbrowser">
+                                    [% IF ( OPACLocalCoverImages ) %]
+                                        <div title="[% img_title | html %]" class="[% item.biblionumber | html %] thumbnail-shelfbrowser" id="local-thumbnail-shelf-[% item.biblionumber | html %]"></div>
                                     [% END %]
-                                [% END %]
-
-                                [% IF ( SyndeticsEnabled ) %]
-                                    [% IF ( SyndeticsCoverImages ) %]
-                                        [% IF ( content_identifier_exists ) %]
-                                            <img src="https://secure.syndetics.com/index.aspx?isbn=[% item.browser_normalized_isbn | html %]/SC.GIF&amp;client=[% SyndeticsClientCode | html %][% IF ( item.browser_normalized_upc ) %]&amp;upc=[% item.browser_normalized_upc | html %][% END %][% IF ( item.browser_normalized_oclc ) %]&amp;oclc=[% item.browser_normalized_oclc | html %][% END %]&amp;type=xw10" alt="" />
+                                    [% IF ( OPACAmazonCoverImages ) %]
+                                        [% IF ( item.browser_normalized_isbn ) %]
+                                            <img src="https://images-na.ssl-images-amazon.com/images/P/[% item.browser_normalized_isbn | html %].01._AA75_PU_PU-5_.jpg" alt="" />
                                         [% ELSE %]
                                             <span class="no-image">No cover image available</span>
                                         [% END %]
                                     [% END %]
-                                [% END %]
 
-                                [% IF ( GoogleJackets ) %]
-                                    [% IF ( item.browser_normalized_isbn ) %]
-                                        <div title="[% img_title | html %]" class="[% item.browser_normalized_isbn | html %]" id="gbs-thumbnail-preview[% loop.count | html %]"></div>
-                                    [% ELSE %]
-                                        <span class="no-image">No cover image available</span>
+                                    [% IF ( SyndeticsEnabled ) %]
+                                        [% IF ( SyndeticsCoverImages ) %]
+                                            [% IF ( content_identifier_exists ) %]
+                                                <img src="https://secure.syndetics.com/index.aspx?isbn=[% item.browser_normalized_isbn | html %]/SC.GIF&amp;client=[% SyndeticsClientCode | html %][% IF ( item.browser_normalized_upc ) %]&amp;upc=[% item.browser_normalized_upc | html %][% END %][% IF ( item.browser_normalized_oclc ) %]&amp;oclc=[% item.browser_normalized_oclc | html %][% END %]&amp;type=xw10" alt="" />
+                                            [% ELSE %]
+                                                <span class="no-image">No cover image available</span>
+                                            [% END %]
+                                        [% END %]
+                                    [% END %]
+
+                                    [% IF ( GoogleJackets ) %]
+                                        [% IF ( item.browser_normalized_isbn ) %]
+                                            <div title="[% img_title | html %]" class="[% item.browser_normalized_isbn | html %]" id="gbs-thumbnail-preview[% loop.count | html %]"></div>
+                                        [% ELSE %]
+                                            <span class="no-image">No cover image available</span>
+                                        [% END %]
                                     [% END %]
-                                [% END %]
-                                [% IF ( Koha.Preference('OpacCoce') && Koha.Preference('CoceProviders') ) %]
-                                  [% coce_id = item.browser_normalized_ean || item.browser_normalized_isbn | html %]
-                                  <div title="[% img_title | html %]" class="[% coce_id | html %]" id="coce-thumbnail-preview-[% coce_id | html %]"></div>
-                                [% END %]
-                                [% IF ( BakerTaylorEnabled ) %]
-                                    [% bt_id = ( item.browser_normalized_upc || item.browser_normalized_isbn ) | html %]
-                                    [% IF ( bt_id ) %]
-                                        <img alt="See Baker &amp; Taylor" src="[% BakerTaylorImageURL | html %][% bt_id | html %]" />
-                                    [% ELSE %]
-                                        <span class="no-image">No cover image available</span>
+                                    [% IF ( Koha.Preference('OpacCoce') && Koha.Preference('CoceProviders') ) %]
+                                    [% coce_id = item.browser_normalized_ean || item.browser_normalized_isbn | html %]
+                                    <div title="[% img_title | html %]" class="[% coce_id | html %]" id="coce-thumbnail-preview-[% coce_id | html %]"></div>
+                                    [% END %]
+                                    [% IF ( BakerTaylorEnabled ) %]
+                                        [% bt_id = ( item.browser_normalized_upc || item.browser_normalized_isbn ) | html %]
+                                        [% IF ( bt_id ) %]
+                                            <img alt="See Baker &amp; Taylor" src="[% BakerTaylorImageURL | html %][% bt_id | html %]" />
+                                        [% ELSE %]
+                                            <span class="no-image">No cover image available</span>
+                                        [% END %]
+                                    [% END %]
+                                    [% IF Koha.Preference('OPACCustomCoverImages') AND Koha.Preference('CustomCoverImagesURL') %]
+                                        <span class="custom_cover_image">
+                                            <img alt="Cover image" src="[% item.biblio_object.custom_cover_image_url | url %]" />
+                                        </span>
                                     [% END %]
-                                [% END %]
-                                [% IF Koha.Preference('OPACCustomCoverImages') AND Koha.Preference('CustomCoverImagesURL') %]
-                                    <span class="custom_cover_image">
-                                        <img alt="Cover image" src="[% item.biblio_object.custom_cover_image_url | url %]" />
-                                    </span>
-                                [% END %]
 
-                            </a>
+                                </a>
+                            [% END %]
                         </td>
                     [% END %]
                     <td class="nav-cell" rowspan="2">
-- 
2.11.0