From e307faad85816563f8c82c053b5c5a5a0acdd626 Mon Sep 17 00:00:00 2001
From: Owen Leonard <oleonard@myacpl.org>
Date: Wed, 9 Sep 2020 18:23:38 +0000
Subject: [PATCH] Bug 25775: Add DataTables controls to user's checkouts table
 in OPAC

This patch updates the "your summary" page in the OPAC so that tables on
the logged-in user's page have DataTables controls. The patch also
tweaks the DataTable configuration of some other pages to make them all
more consistent.

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).

- Log in to the OPAC as a user who has checkouts, overdues, and holds.
- On the "your summary" page, confirm that the checkouts table has
  controls at the top: A search form and link-style buttons: Clear
  filter, Copy, CSV, Print, iCal, Renew selected, and Renew all.
- Confirm that each work correctly.
- At the bottom of the page, the style of the "Renew selected" and
  "Renew all" buttons should now be side by side.
- Confirm that both buttons work correctly.
- If necessary, enable the UseCourseReserves system preference.
- Go to the OPAC course reserves page.
- Confirm that there is a working "Search courses" field at the top of
  the table.
- View the contents of a course reserve.
- There should be a "Search course reserves" field at the top of the
  table.

Signed-off-by: Lucas Gass <lucas@bywatersolutions.com>
---
 koha-tmpl/opac-tmpl/bootstrap/css/datatables.css   |  22 ++
 koha-tmpl/opac-tmpl/bootstrap/css/src/_common.scss | 289 +++++++++++++++
 koha-tmpl/opac-tmpl/bootstrap/css/src/opac.scss    |  31 +-
 .../bootstrap/en/modules/opac-course-details.tt    |   6 +-
 .../bootstrap/en/modules/opac-course-reserves.tt   |   2 +-
 .../opac-tmpl/bootstrap/en/modules/opac-user.tt    |  48 ++-
 koha-tmpl/opac-tmpl/bootstrap/js/datatables.js     | 407 ++-------------------
 7 files changed, 380 insertions(+), 425 deletions(-)

diff --git a/koha-tmpl/opac-tmpl/bootstrap/css/datatables.css b/koha-tmpl/opac-tmpl/bootstrap/css/datatables.css
index 5546a58eb1..b9361b7acd 100644
--- a/koha-tmpl/opac-tmpl/bootstrap/css/datatables.css
+++ b/koha-tmpl/opac-tmpl/bootstrap/css/datatables.css
@@ -19,6 +19,10 @@ div.dataTables_filter {
     margin : 0;
 }
 
+.dt-buttons {
+    padding: .3em 0 0 0;
+}
+
 .dataTables_filter input {
     background-color: #fff;
     border-radius: 0.2rem;
@@ -26,6 +30,7 @@ div.dataTables_filter {
     color: #495057;
     height: calc(1.5em + 0.5rem + 2px);
     line-height: 1.5;
+    margin-left: 3px;
     padding: 0.25rem 0.5rem;
     transition: border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out, -webkit-box-shadow 0.15s ease-in-out;
 }
@@ -34,3 +39,20 @@ div.dataTables_filter {
     border-color: #85ca11;
     box-shadow: inset 0 1px 1px rgba(0, 0, 0, 0.075), 0 0 8px rgba(194, 228, 136, 0.6);
 }
+
+div.dt-button-collection {
+    background-color: white;
+    border-radius: 5px;
+    border: 1px solid #ccc;
+    border: 1px solid rgba(0, 0, 0, 0.4);
+    box-shadow: 3px 3px 5px rgba(0, 0, 0, 0.3);
+    column-gap: 8px;
+    left: 0;
+    margin-top: 3px;
+    overflow: hidden;
+    padding: 8px 8px 4px 8px;
+    position: absolute;
+    top: 0;
+    width: 150px;
+    z-index: 2002;
+}
diff --git a/koha-tmpl/opac-tmpl/bootstrap/css/src/_common.scss b/koha-tmpl/opac-tmpl/bootstrap/css/src/_common.scss
index f0a0fd2be3..93a0c66712 100644
--- a/koha-tmpl/opac-tmpl/bootstrap/css/src/_common.scss
+++ b/koha-tmpl/opac-tmpl/bootstrap/css/src/_common.scss
@@ -34,6 +34,10 @@ $sci-heading-color: #727272;
     border-radius: $radius;
 }
 
+@mixin input-focus {
+    border-color: #85CA11;
+    box-shadow: inset 0 1px 1px rgba(0, 0, 0, .075), 0 0 8px rgba(194, 228, 136, .6);
+}
 
 /* Bootstrap imports */
 @import "../../../../../node_modules/bootstrap/scss/functions";
@@ -295,6 +299,291 @@ textarea,
     }
 }
 
+.dt-button {
+    background-color: transparent;
+    border: 0;
+    color: #0088cc;
+    display: inline-block;
+    line-height: 20px;
+    padding: 4px 12px;
+    text-align: center;
+    text-shadow: 0 1px 1px rgba(255, 255, 255, 0.75);
+    vertical-align: middle;
+
+    &:hover {
+        color: #005580;
+
+        &::before {
+            color: #44AE89;
+        }
+    }
+
+    &::before {
+        color: #4466AE;
+        font-family: FontAwesome;
+        display: inline-block;
+        padding-right: .5em;
+    }
+
+    &.disabled {
+        color: #333;
+        opacity: .65;
+        pointer-events: none;
+
+        &:hover {
+            color: #333;
+            filter: alpha(opacity=65);
+            opacity: 0.65;
+        }
+
+        i {
+
+            &.fa,
+            &.fa:hover {
+                color: #333;
+                filter: alpha(opacity=65);
+                opacity: 0.65;
+            }
+        }
+    }
+}
+
+div.dt-button-collection button.dt-button,
+div.dt-button-collection div.dt-button,
+div.dt-button-collection a.dt-button {
+    position: relative;
+    left: 0;
+    right: 0;
+    width: 100%;
+    display: block;
+    float: none;
+    margin-bottom: 4px;
+    margin-right: 0;
+}
+
+div.dt-button-collection {
+    width: auto
+}
+
+div.dt-button-collection button.dt-button {
+    border-radius: 2px;
+    text-align: left
+}
+
+div.dt-button-collection button.dt-button.buttons-collection {
+    border: 0
+}
+
+div.dt-button-collection button.dt-button.buttons-columnVisibility {
+    background: #fff none;
+    border: 1px solid #eee;
+    box-shadow: none;
+    font-size: 1em;
+    margin: 0 0 4px;
+    padding: .3em .7em;
+    text-shadow: none
+}
+
+div.dt-button-collection button.dt-button.buttons-columnVisibility:before {
+    color: #c00;
+    content: "\f00d";
+    display: inline-block;
+    font-family: FontAwesome;
+    margin-right: .5em;
+    width: 1em
+}
+
+div.dt-button-collection button.dt-button.buttons-columnVisibility:hover {
+    background: #ffc none;
+    border: 1px solid #999;
+    box-shadow: none
+}
+
+div.dt-button-collection button.dt-button.buttons-columnVisibility:hover:before {
+    color: #538200;
+    content: "\f00c";
+    display: inline-block;
+    font-family: FontAwesome;
+    margin-right: .5em;
+    width: 1em
+}
+
+div.dt-button-collection button.dt-button.buttons-columnVisibility:active:not(.disabled):hover:not(.disabled) {
+    background: transparent none;
+    box-shadow: none
+}
+
+div.dt-button-collection button.dt-button.buttons-columnVisibility.active {
+    background: #e6f0f2 none;
+    border-color: #999;
+    box-shadow: none
+}
+
+div.dt-button-collection button.dt-button.buttons-columnVisibility.active:hover {
+    background: #ffc none
+}
+
+div.dt-button-collection button.dt-button.buttons-columnVisibility.active:hover:before {
+    color: #c00;
+    content: "\f00d";
+    display: inline-block;
+    font-family: FontAwesome;
+    margin-right: .5em;
+    width: 1em
+}
+
+div.dt-button-collection button.dt-button.buttons-columnVisibility.active:not(.disabled):hover:not(.disabled) {
+    background: transparent none;
+    box-shadow: none
+}
+
+div.dt-button-collection button.dt-button.buttons-columnVisibility.active:before {
+    color: #538200;
+    content: "\f00c";
+    display: inline-block;
+    font-family: FontAwesome;
+    margin-right: .5em;
+    width: 1em;
+}
+
+div.dt-button-collection button.dt-button.buttons-html5,
+div.dt-button-collection button.dt-button.buttons-print {
+    background: #fff none;
+    border: 1px solid #eee;
+    box-shadow: none;
+    font-size: 1.2em;
+    margin: 0 0 4px;
+    padding: .3em .7em;
+    text-shadow: none
+}
+
+div.dt-button-collection button.dt-button.buttons-html5:hover,
+div.dt-button-collection button.dt-button.buttons-print:hover {
+    background: #ffc none
+}
+
+div.dt-button-collection button.dt-button.buttons-html5:not(.disabled):before {
+    color: #222bac;
+    display: inline-block;
+    font-family: FontAwesome;
+    margin-right: .5em;
+    width: 1em
+}
+
+div.dt-button-collection button.dt-button.buttons-excel:not(.disabled):before {
+    content: "\f1c3"
+}
+
+div.dt-button-collection button.dt-button.buttons-csv:not(.disabled):before {
+    content: "\f0ce"
+}
+
+div.dt-button-collection button.dt-button.buttons-copy:not(.disabled):before {
+    content: "\f0c5"
+}
+
+div.dt-button-collection button.dt-button.buttons-print:not(.disabled):before {
+    color: #222bac;
+    content: "\f02f";
+    display: inline-block;
+    font-family: FontAwesome;
+    margin-right: .5em;
+    width: 1em
+}
+
+.dt-button-info {
+    position: fixed;
+    top: 50%;
+    left: 50%;
+    width: 400px;
+    margin-top: -100px;
+    margin-left: -200px;
+    background-color: #FFF;
+    border: 2px solid #005580;
+    box-shadow: 3px 3px 8px rgba(0, 0, 0, 0.3);
+    border-radius: 3px;
+    text-align: center;
+    z-index: 21;
+
+    h2 {
+        padding: 0.5em;
+        margin: 0;
+        font-weight: normal;
+        border-bottom: 1px solid #ddd;
+        background-color: #f3f3f3;
+    }
+
+    &>div {
+        padding: 1em;
+    }
+}
+
+.buttons-print {
+    &::before {
+        content: "\f02f";
+    }
+}
+
+.buttons-csv {
+    &::before {
+        content: "\f0ce";
+    }
+}
+
+.buttons-copy {
+    &::before {
+        content: "\f0c5";
+    }
+}
+
+.buttons-ical {
+    &::before {
+        content: "\f073";
+    }
+
+    &:hover {
+        text-decoration: none;
+    }
+}
+
+.buttons-renew,
+.buttons-renewall {
+    &:hover {
+        i.fa {
+            color: #44AE89;
+        }
+    }
+}
+
+.buttons-colvis {
+    &::before {
+        content: "\f013";
+    }
+}
+
+.table_controls {
+    display: flex;
+
+    .dataTables_filter {
+        label {
+            input {
+                margin-left: 5px;
+            }
+        }
+
+        input {
+            @extend .form-control;
+            @extend .form-control-sm;
+            display: inline-block;
+            width: auto;
+
+            &:focus {
+                @include input-focus;
+            }
+        }
+    }
+}
+
 [class^="icon-"] {
     vertical-align: 0;
 }
diff --git a/koha-tmpl/opac-tmpl/bootstrap/css/src/opac.scss b/koha-tmpl/opac-tmpl/bootstrap/css/src/opac.scss
index f8159086fd..a33ba13211 100644
--- a/koha-tmpl/opac-tmpl/bootstrap/css/src/opac.scss
+++ b/koha-tmpl/opac-tmpl/bootstrap/css/src/opac.scss
@@ -10,7 +10,8 @@
         padding: 0;
     }
 
-    .selections-toolbar {
+    .selections-toolbar,
+    #renewall_js {
         display: none;
     }
 
@@ -542,7 +543,6 @@ th {
     }
 }
 
-
 .breadcrumb {
     background-color: #F0F3F3;
     font-size: 85%;
@@ -552,33 +552,6 @@ th {
     border-radius: 0px;
 }
 
-.buttons-print {
-    background-color: transparent;
-    border: 0;
-    color: #0088cc;
-    display: inline-block;
-    line-height: 20px;
-    padding: 4px 12px;
-    text-align: center;
-    text-shadow: 0 1px 1px rgba(255, 255, 255, 0.75);
-    vertical-align: middle;
-
-    &:hover {
-        color: #005580;
-        &::before {
-            color: #44AE89;
-        }
-    }
-
-    &::before {
-        color: #4466AE;
-        content: "\f02f";
-        font-family: FontAwesome;
-        display: inline-block;
-        padding-right: .5em;
-    }
-}
-
 #opac-main-search {
     background: #f0f3f3;
     margin: 7px 0;
diff --git a/koha-tmpl/opac-tmpl/bootstrap/en/modules/opac-course-details.tt b/koha-tmpl/opac-tmpl/bootstrap/en/modules/opac-course-details.tt
index ffd3367aa1..d90c1fa2e8 100644
--- a/koha-tmpl/opac-tmpl/bootstrap/en/modules/opac-course-details.tt
+++ b/koha-tmpl/opac-tmpl/bootstrap/en/modules/opac-course-details.tt
@@ -122,9 +122,13 @@
         $(document).ready(function() {
             columns_settings = [% TablesSettings.GetColumns( 'opac', 'biblio-detail', 'course-items-table', 'json' ) | $raw %];
             KohaTable("#course-items-table", {
-                "dom": '<"top"f>rt<"clear">',
+                "dom": '<"top"<"table_controls"f>>t',
                 "sorting": [[ 1, "asc" ]],
                 "autoWidth": false,
+                "language": {
+                    "search": "_INPUT_",
+                    "searchPlaceholder": _("Search course reserves")
+                }
             }, columns_settings );
         });
     </script>
diff --git a/koha-tmpl/opac-tmpl/bootstrap/en/modules/opac-course-reserves.tt b/koha-tmpl/opac-tmpl/bootstrap/en/modules/opac-course-reserves.tt
index bc6a9814e8..6856d1e3bd 100644
--- a/koha-tmpl/opac-tmpl/bootstrap/en/modules/opac-course-reserves.tt
+++ b/koha-tmpl/opac-tmpl/bootstrap/en/modules/opac-course-reserves.tt
@@ -84,7 +84,7 @@
                 ],
                 "language": {
                     "search": "_INPUT_",
-                    "searchPlaceholder": "Search courses"
+                    "searchPlaceholder": _("Search courses")
                 }
             }, columns_settings );
         });
diff --git a/koha-tmpl/opac-tmpl/bootstrap/en/modules/opac-user.tt b/koha-tmpl/opac-tmpl/bootstrap/en/modules/opac-user.tt
index bb2cc72410..0f5e696cf7 100644
--- a/koha-tmpl/opac-tmpl/bootstrap/en/modules/opac-user.tt
+++ b/koha-tmpl/opac-tmpl/bootstrap/en/modules/opac-user.tt
@@ -452,22 +452,22 @@
                                 </table>
                                 [% IF ( canrenew && !userdebarred && OpacRenewalAllowed && !( logged_in_user.is_expired && logged_in_user.category.effective_BlockExpiredPatronOpacActions ) ) %]
                                     <input type="submit" class="btn btn-primary" value="Renew selected" />
+                                    <button type="button" id="renewall_js" class="btn btn-primary">Renew all</button>
                                 [% END %]
                                 </form>
 
                                 [% IF ( canrenew && !userdebarred && OpacRenewalAllowed && !( logged_in_user.is_expired && logged_in_user.category.effective_BlockExpiredPatronOpacActions ) ) %]
-                                <form id="renewall" action="/cgi-bin/koha/opac-renew.pl" method="post">
-                                    <input type="hidden" name="from" value="opac_user" />
-                                    <input type="hidden" name="borrowernumber" value="[% borrowernumber | html %]" />
-                                    [% FOREACH ISSUE IN ISSUES %]
-                                        [% IF ISSUE.status %]
-                                            <input type="hidden" name="item" value="[% ISSUE.itemnumber | html %]" />
+                                    <form id="renewall" class="js-hide" action="/cgi-bin/koha/opac-renew.pl" method="post">
+                                        <input type="hidden" name="from" value="opac_user" />
+                                        <input type="hidden" name="borrowernumber" value="[% borrowernumber | html %]" />
+                                        [% FOREACH ISSUE IN ISSUES %]
+                                            [% IF ISSUE.status %]
+                                                <input type="hidden" name="item" value="[% ISSUE.itemnumber | html %]" />
+                                            [% END %]
                                         [% END %]
-                                    [% END %]
-                                    <input type="submit" class="btn btn-primary" value="Renew all" />
-                                </form>
+                                        <input type="submit" class="btn btn-primary" value="Renew all" />
+                                    </form>
                                 [% END %]
-                                <p><a href="opac-ics.pl">Download as iCal/.ics file</a></p>
                             [% ELSE %]
                                 <table class="table table-bordered table-striped">
                                     <tr><td>You have nothing checked out</td></tr>
@@ -834,7 +834,14 @@
     [% INCLUDE 'calendar.inc' %]
     [% INCLUDE 'datatables.inc' %]
     <script>
-
+        function tableInit( tableId ){
+            if( tableId == "checkoutst" ){
+                $(".dt-buttons").append("<a class=\"dt-button buttons-ical\" href=\"opac-ics.pl\">iCal</a> ");
+                [% IF ( OpacRenewalAllowed && canrenew && !userdebarred ) %]
+                    $(".dt-buttons").append("<button id=\"renewselected_link\" class=\"dt-button buttons-renew\"><i class=\"fa fa-check\" aria-hidden=\"true\"></i> "+_("Renew selected")+"</button> <button id=\"renewall_link\" class=\"dt-button buttons-renewall\"><span class=\"fa-stack\"><i class=\"fa fa-check fa-stack-1x\" aria-hidden=\"true\"></i><i class=\"fa fa-check fa-stack-1x\" aria-hidden=\"true\"></i></span> "+_("Renew all")+"</button>");
+                [% END %]
+            }
+        }
         $(document).ready(function(){
             $('#opac-user-views').tabs();
             $(".modal-nojs").addClass("modal").addClass("hide").removeClass("modal-nojs");
@@ -891,13 +898,21 @@
             var dTables = $("#checkoutst,#holdst,#overduest,#opac-user-relative-issues-table");
             dTables.each(function(){
                 var thIndex = $(this).find("th.psort").index();
-                $(this).dataTable($.extend(true, {}, dataTablesDefaults, {
+                $(this).on("init.dt", function() {
+                        tableInit( $(this).attr("id") );
+                    })
+                    .dataTable($.extend(true, {}, dataTablesDefaults, {
                     "sorting" : [[ thIndex, 'asc' ]],
+                    "dom": '<"top"<"table_entries"><"table_controls"fB>>t',
                     "columnDefs": [
                         { "targets": [ "nosort" ],"sortable": false,"searchable": false },
                         { "type": "anti-the", "targets" : [ "anti-the" ] },
                         { "type": "title-string", "targets" : [ "title-string" ] }
-                    ]
+                    ],
+                    "language": {
+                        "search": "_INPUT_",
+                        "searchPlaceholder": _("Search")
+                    }
                 }));
             });
 
@@ -919,14 +934,11 @@
                     e.preventDefault();
                     $("#renewselected").submit();
                 });
-                $("body").on("click","#renewall_link",function(e){
+                $("body").on("click","#renewall_link, #renewall_js",function(e){
                     e.preventDefault();
                     $("#renewall").submit();
                 });
-                [% IF ( canrenew && !userdebarred && OpacRenewalAllowed && !( logged_in_user.is_expired && logged_in_user.category.effective_BlockExpiredPatronOpacActions ) ) %]
-                    $("#checkoutst caption").append("<div id=\"renewcontrols\"><a id=\"renewselected_link\" class=\"btn btn-link\" href=\"#\"><i class=\"fa fa-check\" aria-hidden=\"true\"></i> "+_("Renew selected")+"</a> <a id=\"renewall_link\" class=\"btn btn-link\" href=\"#\"><span class=\"fa-stack\"><i class=\"fa fa-check fa-stack-1x\" aria-hidden=\"true\"></i><i class=\"fa fa-check fa-stack-1x\" aria-hidden=\"true\"></i></span> "+_("Renew all")+"</a></div>");
-                [% END %]
-            [% END %]
+            [% END # /IF ( OpacRenewalAllowed && canrenew && !userdebarred ) %]
 
             [% IF ( Koha.Preference('AllowCheckoutNotes') ) %]
 
diff --git a/koha-tmpl/opac-tmpl/bootstrap/js/datatables.js b/koha-tmpl/opac-tmpl/bootstrap/js/datatables.js
index 231ef74219..f8b1633de8 100644
--- a/koha-tmpl/opac-tmpl/bootstrap/js/datatables.js
+++ b/koha-tmpl/opac-tmpl/bootstrap/js/datatables.js
@@ -1,3 +1,4 @@
+/* global __ */
 // These default options are for translation but can be used
 // for any other datatables settings
 // To use it, write:
@@ -32,24 +33,10 @@ var dataTablesDefaults = {
         }
     },
     "dom": 't',
+    "buttons": [
+        'clearFilter', 'copy', 'csv', 'print'
+    ],
     "paginate": false,
-    "buttons": [{
-        fade: 100,
-        className: "dt_button_clear_filter",
-        titleAttr: window.MSG_CLEAR_FILTER,
-        enabled: false,
-        text: '<i class="fa fa-lg fa-remove"></i> <span class="dt-button-text">' + window.MSG_CLEAR_FILTER + '</span>',
-        available: function ( dt ) {
-            // The "clear filter" button is made available if this test returns true
-            if( dt.settings()[0].aanFeatures.f ){ // aanFeatures.f is null if there is no search form
-                return true;
-            }
-        },
-        action: function ( e, dt, node ) {
-            dt.search( "" ).draw("page");
-            node.addClass("disabled");
-        }
-    }],
     initComplete: function( settings) {
         var tableId = settings.nTable.id
         // When the DataTables search function is triggered,
@@ -65,225 +52,23 @@ var dataTablesDefaults = {
     }
 };
 
-
-// Return an array of string containing the values of a particular column
-$.fn.dataTableExt.oApi.fnGetColumnData = function ( oSettings, iColumn, bUnique, bFiltered, bIgnoreEmpty ) {
-    // check that we have a column id
-    if ( typeof iColumn == "undefined" ) return new Array();
-    // by default we only wany unique data
-    if ( typeof bUnique == "undefined" ) bUnique = true;
-    // by default we do want to only look at filtered data
-    if ( typeof bFiltered == "undefined" ) bFiltered = true;
-    // by default we do not wany to include empty values
-    if ( typeof bIgnoreEmpty == "undefined" ) bIgnoreEmpty = true;
-    // list of rows which we're going to loop through
-    var aiRows;
-    // use only filtered rows
-    if (bFiltered == true) aiRows = oSettings.aiDisplay;
-    // use all rows
-    else aiRows = oSettings.aiDisplayMaster; // all row numbers
-
-    // set up data array
-    var asResultData = new Array();
-    for (var i=0,c=aiRows.length; i<c; i++) {
-        iRow = aiRows[i];
-        var aData = this.fnGetData(iRow);
-        var sValue = aData[iColumn];
-        // ignore empty values?
-        if (bIgnoreEmpty == true && sValue.length == 0) continue;
-        // ignore unique values?
-        else if (bUnique == true && jQuery.inArray(sValue, asResultData) > -1) continue;
-        // else push the value onto the result data array
-        else asResultData.push(sValue);
-    }
-    return asResultData;
-}
-
-// List of unbind keys (Ctrl, Alt, Direction keys, etc.)
-// These keys must not launch filtering
-var blacklist_keys = new Array(0, 16, 17, 18, 37, 38, 39, 40);
-
-// Set a filtering delay for global search field
-jQuery.fn.dataTableExt.oApi.fnSetFilteringDelay = function ( oSettings, iDelay ) {
-    /*
-     * Inputs:      object:oSettings - dataTables settings object - automatically given
-     *              integer:iDelay - delay in milliseconds
-     * Usage:       $('#example').dataTable().fnSetFilteringDelay(250);
-     * Author:      Zygimantas Berziunas (www.zygimantas.com) and Allan Jardine
-     * License:     GPL v2 or BSD 3 point style
-     * Contact:     zygimantas.berziunas /AT\ hotmail.com
-     */
-    var
-        _that = this,
-        iDelay = (typeof iDelay == 'undefined') ? 250 : iDelay;
-
-    this.each( function ( i ) {
-        $.fn.dataTableExt.iApiIndex = i;
-        var
-            $this = this,
-            oTimerId = null,
-            sPreviousSearch = null,
-            anControl = $( 'input', _that.fnSettings().aanFeatures.f );
-
-        anControl.unbind( 'keyup.DT' ).bind( 'keyup.DT', function(event) {
-            var $$this = $this;
-            if (blacklist_keys.indexOf(event.keyCode) != -1) {
-                return this;
-            }else if ( event.keyCode == '13' ) {
-                $.fn.dataTableExt.iApiIndex = i;
-                _that.fnFilter( $(this).val() );
-            } else {
-                if (sPreviousSearch === null || sPreviousSearch != anControl.val()) {
-                    window.clearTimeout(oTimerId);
-                    sPreviousSearch = anControl.val();
-                    oTimerId = window.setTimeout(function() {
-                        $.fn.dataTableExt.iApiIndex = i;
-                        _that.fnFilter( anControl.val() );
-                    }, iDelay);
-                }
-            }
-        });
-
-        return this;
-    } );
-    return this;
-}
-
-// Add a filtering delay on general search and on all input (with a class 'filter')
-jQuery.fn.dataTableExt.oApi.fnAddFilters = function ( oSettings, sClass, iDelay ) {
-    var table = this;
-    this.fnSetFilteringDelay(iDelay);
-    var filterTimerId = null;
-    $(table).find("input."+sClass).keyup(function(event) {
-      if (blacklist_keys.indexOf(event.keyCode) != -1) {
-        return this;
-      }else if ( event.keyCode == '13' ) {
-        table.fnFilter( $(this).val(), $(this).attr('data-column_num') );
-      } else {
-        window.clearTimeout(filterTimerId);
-        var input = this;
-        filterTimerId = window.setTimeout(function() {
-          table.fnFilter($(input).val(), $(input).attr('data-column_num'));
-        }, iDelay);
-      }
-    });
-    $(table).find("select."+sClass).on('change', function() {
-        table.fnFilter($(this).val(), $(this).attr('data-column_num'));
-    });
-}
-
-// Sorting on html contains
-// <a href="foo.pl">bar</a> sort on 'bar'
-function dt_overwrite_html_sorting_localeCompare() {
-    jQuery.fn.dataTableExt.oSort['html-asc']  = function(a,b) {
-        a = a.replace(/<.*?>/g, "").replace(/\s+/g, " ");
-        b = b.replace(/<.*?>/g, "").replace(/\s+/g, " ");
-        if (typeof(a.localeCompare == "function")) {
-           return a.localeCompare(b);
-        } else {
-           return (a > b) ? 1 : ((a < b) ? -1 : 0);
+$.fn.dataTable.ext.buttons.clearFilter = {
+    fade: 100,
+    className: "dt_button_clear_filter",
+    titleAttr: window.MSG_CLEAR_FILTER,
+    enabled: false,
+    text: '<i class="fa fa-lg fa-remove"></i> <span class="dt-button-text">' + window.MSG_CLEAR_FILTER + '</span>',
+    available: function ( dt ) {
+        // The "clear filter" button is made available if this test returns true
+        if( dt.settings()[0].aanFeatures.f ){ // aanFeatures.f is null if there is no search form
+            return true;
         }
-    };
-
-    jQuery.fn.dataTableExt.oSort['html-desc'] = function(a,b) {
-        a = a.replace(/<.*?>/g, "").replace(/\s+/g, " ");
-        b = b.replace(/<.*?>/g, "").replace(/\s+/g, " ");
-        if(typeof(b.localeCompare == "function")) {
-            return b.localeCompare(a);
-        } else {
-            return (b > a) ? 1 : ((b < a) ? -1 : 0);
-        }
-    };
-
-    jQuery.fn.dataTableExt.oSort['num-html-asc']  = function(a,b) {
-        var x = a.replace( /<.*?>/g, "" );
-        var y = b.replace( /<.*?>/g, "" );
-        x = parseFloat( x );
-        y = parseFloat( y );
-        return ((x < y) ? -1 : ((x > y) ?  1 : 0));
-    };
-
-    jQuery.fn.dataTableExt.oSort['num-html-desc'] = function(a,b) {
-        var x = a.replace( /<.*?>/g, "" );
-        var y = b.replace( /<.*?>/g, "" );
-        x = parseFloat( x );
-        y = parseFloat( y );
-        return ((x < y) ?  1 : ((x > y) ? -1 : 0));
-    };
-}
-
-$.fn.dataTableExt.oSort['num-html-asc']  = function(a,b) {
-    var x = a.replace( /<.*?>/g, "" );
-    var y = b.replace( /<.*?>/g, "" );
-    x = parseFloat( x );
-    y = parseFloat( y );
-    return ((x < y) ? -1 : ((x > y) ?  1 : 0));
-};
-
-$.fn.dataTableExt.oSort['num-html-desc'] = function(a,b) {
-    var x = a.replace( /<.*?>/g, "" );
-    var y = b.replace( /<.*?>/g, "" );
-    x = parseFloat( x );
-    y = parseFloat( y );
-    return ((x < y) ?  1 : ((x > y) ? -1 : 0));
-};
-
-(function() {
-
-/*
- * Natural Sort algorithm for Javascript - Version 0.7 - Released under MIT license
- * Author: Jim Palmer (based on chunking idea from Dave Koelle)
- * Contributors: Mike Grier (mgrier.com), Clint Priest, Kyle Adams, guillermo
- * See: http://js-naturalsort.googlecode.com/svn/trunk/naturalSort.js
- */
-function naturalSort (a, b) {
-    var re = /(^-?[0-9]+(\.?[0-9]*)[df]?e?[0-9]?$|^0x[0-9a-f]+$|[0-9]+)/gi,
-        sre = /(^[ ]*|[ ]*$)/g,
-        dre = /(^([\w ]+,?[\w ]+)?[\w ]+,?[\w ]+\d+:\d+(:\d+)?[\w ]?|^\d{1,4}[\/\-]\d{1,4}[\/\-]\d{1,4}|^\w+, \w+ \d+, \d{4})/,
-        hre = /^0x[0-9a-f]+$/i,
-        ore = /^0/,
-        // convert all to strings and trim()
-        x = a.toString().replace(sre, '') || '',
-        y = b.toString().replace(sre, '') || '',
-        // chunk/tokenize
-        xN = x.replace(re, '\0$1\0').replace(/\0$/,'').replace(/^\0/,'').split('\0'),
-        yN = y.replace(re, '\0$1\0').replace(/\0$/,'').replace(/^\0/,'').split('\0'),
-        // numeric, hex or date detection
-        xD = parseInt(x.match(hre), 10) || (xN.length != 1 && x.match(dre) && Date.parse(x)),
-        yD = parseInt(y.match(hre), 10) || xD && y.match(dre) && Date.parse(y) || null;
-    // first try and sort Hex codes or Dates
-    if (yD)
-        if ( xD < yD ) return -1;
-        else if ( xD > yD )  return 1;
-    // natural sorting through split numeric strings and default strings
-    for(var cLoc=0, numS=Math.max(xN.length, yN.length); cLoc < numS; cLoc++) {
-        // find floats not starting with '0', string or 0 if not defined (Clint Priest)
-        var oFxNcL = !(xN[cLoc] || '').match(ore) && parseFloat(xN[cLoc]) || xN[cLoc] || 0;
-        var oFyNcL = !(yN[cLoc] || '').match(ore) && parseFloat(yN[cLoc]) || yN[cLoc] || 0;
-        // handle numeric vs string comparison - number < string - (Kyle Adams)
-        if (isNaN(oFxNcL) !== isNaN(oFyNcL)) return (isNaN(oFxNcL)) ? 1 : -1;
-        // rely on string comparison if different types - i.e. '02' < 2 != '02' < '2'
-        else if (typeof oFxNcL !== typeof oFyNcL) {
-            oFxNcL += '';
-            oFyNcL += '';
-        }
-        if (oFxNcL < oFyNcL) return -1;
-        if (oFxNcL > oFyNcL) return 1;
-    }
-    return 0;
-}
-
-jQuery.extend( jQuery.fn.dataTableExt.oSort, {
-    "natural-asc": function ( a, b ) {
-        return naturalSort(a,b);
     },
-
-    "natural-desc": function ( a, b ) {
-        return naturalSort(a,b) * -1;
+    action: function ( e, dt, node ) {
+        dt.search( "" ).draw("page");
+        node.addClass("disabled");
     }
-} );
-
-}());
+};
 
 /* Plugin to allow sorting on data stored in a span's title attribute
  *
@@ -359,7 +144,7 @@ jQuery.extend( jQuery.fn.dataTableExt.oSort, {
     if (config_exclude_articles_from_sort){
         var articles = config_exclude_articles_from_sort.split(" ");
         var rpattern = "";
-        for(i=0;i<articles.length;i++){
+        for( var i=0; i<articles.length; i++){
             rpattern += "^" + articles[i] + " ";
             if(i < articles.length - 1){ rpattern += "|"; }
         }
@@ -385,128 +170,6 @@ jQuery.extend( jQuery.fn.dataTableExt.oSort, {
 
 }());
 
-// Remove string between NSB NSB characters
-$.fn.dataTableExt.oSort['nsb-nse-asc'] = function(a,b) {
-    var pattern = new RegExp("\x88.*\x89");
-    a = a.replace(pattern, "");
-    b = b.replace(pattern, "");
-    return (a > b) ? 1 : ((a < b) ? -1 : 0);
-}
-$.fn.dataTableExt.oSort['nsb-nse-desc'] = function(a,b) {
-    var pattern = new RegExp("\x88.*\x89");
-    a = a.replace(pattern, "");
-    b = b.replace(pattern, "");
-    return (b > a) ? 1 : ((b < a) ? -1 : 0);
-}
-
-/* Define two custom functions (asc and desc) for basket callnumber sorting */
-jQuery.fn.dataTableExt.oSort['callnumbers-asc']  = function(x,y) {
-        var x_array = x.split("<div>");
-        var y_array = y.split("<div>");
-
-        /* Pop the first elements, they are empty strings */
-        x_array.shift();
-        y_array.shift();
-
-        x_array = jQuery.map( x_array, function( a ) {
-            return parse_callnumber( a );
-        });
-        y_array = jQuery.map( y_array, function( a ) {
-            return parse_callnumber( a );
-        });
-
-        x_array.sort();
-        y_array.sort();
-
-        x = x_array.shift();
-        y = y_array.shift();
-
-        if ( !x ) { x = ""; }
-        if ( !y ) { y = ""; }
-
-        return ((x < y) ? -1 : ((x > y) ?  1 : 0));
-};
-
-jQuery.fn.dataTableExt.oSort['callnumbers-desc'] = function(x,y) {
-        var x_array = x.split("<div>");
-        var y_array = y.split("<div>");
-
-        /* Pop the first elements, they are empty strings */
-        x_array.shift();
-        y_array.shift();
-
-        x_array = jQuery.map( x_array, function( a ) {
-            return parse_callnumber( a );
-        });
-        y_array = jQuery.map( y_array, function( a ) {
-            return parse_callnumber( a );
-        });
-
-        x_array.sort();
-        y_array.sort();
-
-        x = x_array.pop();
-        y = y_array.pop();
-
-        if ( !x ) { x = ""; }
-        if ( !y ) { y = ""; }
-
-        return ((x < y) ?  1 : ((x > y) ? -1 : 0));
-};
-
-function parse_callnumber ( html ) {
-    var array = html.split('<span class="callnumber">');
-    if ( array[1] ) {
-        array = array[1].split('</span>');
-        return array[0];
-    } else {
-        return "";
-    }
-}
-
-// see http://www.datatables.net/examples/advanced_init/footer_callback.html
-function footer_column_sum( api, column_numbers ) {
-    // Remove the formatting to get integer data for summation
-    var intVal = function ( i ) {
-        if ( typeof i === 'number' ) {
-            if ( isNaN(i) ) return 0;
-            return i;
-        } else if ( typeof i === 'string' ) {
-            var value = i.replace(/[a-zA-Z ,.]/g, '')*1;
-            if ( isNaN(value) ) return 0;
-            return value;
-        }
-        return 0;
-    };
-
-
-    for ( var indice = 0 ; indice < column_numbers.length ; indice++ ) {
-        var column_number = column_numbers[indice];
-
-        var total = 0;
-        var cells = api.column( column_number, { page: 'current' } ).nodes().to$().find("span.total_amount");
-        $(cells).each(function(){
-            total += intVal( $(this).html() );
-        });
-        total /= 100; // Hard-coded decimal precision
-
-        // Update footer
-        $( api.column( column_number ).footer() ).html(total.format_price());
-    };
-}
-
-function filterDataTable( table, column, term ){
-    if( column ){
-        table.column( column ).search( term ).draw("page");
-    } else {
-        table.search( term ).draw("page");
-    }
-}
-
-jQuery.fn.dataTable.ext.errMode = function(settings, note, message) {
-    console.warn(message);
-};
-
 (function($) {
 
     $.fn.api = function(options, columns_settings, add_filters) {
@@ -632,12 +295,12 @@ jQuery.fn.dataTable.ext.errMode = function(settings, note, message) {
 
                 return newnode.text().replace( /\n/g, ' ' ).trim();
             }
-        }
+        };
 
         var export_buttons = [
             {
                 extend: 'excelHtml5',
-                text: _("Excel"),
+                text: __("Excel"),
                 exportOptions: {
                     columns: exportColumns,
                     format:  export_format
@@ -645,7 +308,7 @@ jQuery.fn.dataTable.ext.errMode = function(settings, note, message) {
             },
             {
                 extend: 'csvHtml5',
-                text: _("CSV"),
+                text: __("CSV"),
                 exportOptions: {
                     columns: exportColumns,
                     format:  export_format
@@ -653,7 +316,7 @@ jQuery.fn.dataTable.ext.errMode = function(settings, note, message) {
             },
             {
                 extend: 'copyHtml5',
-                text: _("Copy"),
+                text: __("Copy"),
                 exportOptions: {
                     columns: exportColumns,
                     format:  export_format
@@ -661,7 +324,7 @@ jQuery.fn.dataTable.ext.errMode = function(settings, note, message) {
             },
             {
                 extend: 'print',
-                text: _("Print"),
+                text: __("Print"),
                 exportOptions: {
                     columns: exportColumns,
                     format:  export_format
@@ -673,10 +336,10 @@ jQuery.fn.dataTable.ext.errMode = function(settings, note, message) {
             {
                 fade: 100,
                 className: "dt_button_clear_filter",
-                titleAttr: _("Clear filter"),
+                titleAttr: __("Clear filter"),
                 enabled: false,
-                text: '<i class="fa fa-lg fa-remove"></i> <span class="dt-button-text">' + _("Clear filter") + '</span>',
-                action: function ( e, dt, node, config ) {
+                text: '<i class="fa fa-lg fa-remove"></i> <span class="dt-button-text">' + __("Clear filter") + '</span>',
+                action: function ( e, dt, node ) {
                     dt.search( "" ).draw("page");
                     node.addClass("disabled");
                 }
@@ -690,8 +353,8 @@ jQuery.fn.dataTable.ext.errMode = function(settings, note, message) {
                     fade: 100,
                     columns: included_ids,
                     className: "columns_controls",
-                    titleAttr: _("Columns settings"),
-                    text: '<i class="fa fa-lg fa-gear"></i> <span class="dt-button-text">' + _("Columns") + '</span>',
+                    titleAttr: __("Columns settings"),
+                    text: '<i class="fa fa-lg fa-gear"></i> <span class="dt-button-text">' + __("Columns") + '</span>',
                     exportOptions: {
                         columns: exportColumns
                     }
@@ -705,20 +368,12 @@ jQuery.fn.dataTable.ext.errMode = function(settings, note, message) {
                 autoClose: true,
                 fade: 100,
                 className: "export_controls",
-                titleAttr: _("Export or print"),
-                text: '<i class="fa fa-lg fa-download"></i> <span class="dt-button-text">' + _("Export") + '</span>',
+                titleAttr: __("Export or print"),
+                text: '<i class="fa fa-lg fa-download"></i> <span class="dt-button-text">' + __("Export") + '</span>',
                 buttons: export_buttons
             }
         );
 
-        if ( add_filters ) {
-            // Duplicate the table header row for columnFilter
-            thead_row = this.find('thead tr');
-            clone = thead_row.clone().addClass('filters_row');
-            clone.find("th.NoSort").html('');
-            thead_row.before(clone);
-        }
-
         $(".dt_button_clear_filter, .columns_controls, .export_controls").tooltip();
 
         return $(this).dataTable(settings);
-- 
2.11.0