From 444682013487ae4ec4da322273c25cf53dfedb13 Mon Sep 17 00:00:00 2001
From: Jonathan Druart <jonathan.druart@bugs.koha-community.org>
Date: Mon, 11 Jan 2021 16:33:43 +0100
Subject: [PATCH] Bug 27403: Add fixedHeader to Datatables

That's a great plugin to have fixed header.

Test plan:
On the cities table or the patron search table confirm that the header
is floating is you scroll down
---
 .../datatables/dataTables.fixedHeader.min.js  | 32 +++++++++++++++++++
 koha-tmpl/intranet-tmpl/prog/js/datatables.js |  1 +
 2 files changed, 33 insertions(+)
 create mode 100644 koha-tmpl/intranet-tmpl/lib/datatables/dataTables.fixedHeader.min.js

diff --git a/koha-tmpl/intranet-tmpl/lib/datatables/dataTables.fixedHeader.min.js b/koha-tmpl/intranet-tmpl/lib/datatables/dataTables.fixedHeader.min.js
new file mode 100644
index 0000000000..978f956190
--- /dev/null
+++ b/koha-tmpl/intranet-tmpl/lib/datatables/dataTables.fixedHeader.min.js
@@ -0,0 +1,32 @@
+/*!
+   Copyright 2009-2020 SpryMedia Ltd.
+
+ This source file is free software, available under the following license:
+   MIT license - http://datatables.net/license/mit
+
+ This source file is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ or FITNESS FOR A PARTICULAR PURPOSE. See the license files for details.
+
+ For details please refer to: http://www.datatables.net
+ FixedHeader 3.1.7
+ ©2009-2020 SpryMedia Ltd - datatables.net/license
+*/
+var $jscomp=$jscomp||{};$jscomp.scope={};$jscomp.findInternal=function(c,d,f){c instanceof String&&(c=String(c));for(var h=c.length,g=0;g<h;g++){var m=c[g];if(d.call(f,m,g,c))return{i:g,v:m}}return{i:-1,v:void 0}};$jscomp.ASSUME_ES5=!1;$jscomp.ASSUME_NO_NATIVE_MAP=!1;$jscomp.ASSUME_NO_NATIVE_SET=!1;$jscomp.SIMPLE_FROUND_POLYFILL=!1;
+$jscomp.defineProperty=$jscomp.ASSUME_ES5||"function"==typeof Object.defineProperties?Object.defineProperty:function(c,d,f){c!=Array.prototype&&c!=Object.prototype&&(c[d]=f.value)};$jscomp.getGlobal=function(c){c=["object"==typeof window&&window,"object"==typeof self&&self,"object"==typeof global&&global,c];for(var d=0;d<c.length;++d){var f=c[d];if(f&&f.Math==Math)return f}throw Error("Cannot find global object");};$jscomp.global=$jscomp.getGlobal(this);
+$jscomp.polyfill=function(c,d,f,h){if(d){f=$jscomp.global;c=c.split(".");for(h=0;h<c.length-1;h++){var g=c[h];g in f||(f[g]={});f=f[g]}c=c[c.length-1];h=f[c];d=d(h);d!=h&&null!=d&&$jscomp.defineProperty(f,c,{configurable:!0,writable:!0,value:d})}};$jscomp.polyfill("Array.prototype.find",function(c){return c?c:function(c,f){return $jscomp.findInternal(this,c,f).v}},"es6","es3");
+(function(c){"function"===typeof define&&define.amd?define(["jquery","datatables.net"],function(d){return c(d,window,document)}):"object"===typeof exports?module.exports=function(d,f){d||(d=window);f&&f.fn.dataTable||(f=require("datatables.net")(d,f).$);return c(f,d,d.document)}:c(jQuery,window,document)})(function(c,d,f,h){var g=c.fn.dataTable,m=0,l=function(a,b){if(!(this instanceof l))throw"FixedHeader must be initialised with the 'new' keyword.";!0===b&&(b={});a=new g.Api(a);this.c=c.extend(!0,
+{},l.defaults,b);this.s={dt:a,position:{theadTop:0,tbodyTop:0,tfootTop:0,tfootBottom:0,width:0,left:0,tfootHeight:0,theadHeight:0,windowHeight:c(d).height(),visible:!0},headerMode:null,footerMode:null,autoWidth:a.settings()[0].oFeatures.bAutoWidth,namespace:".dtfc"+m++,scrollLeft:{header:-1,footer:-1},enable:!0};this.dom={floatingHeader:null,thead:c(a.table().header()),tbody:c(a.table().body()),tfoot:c(a.table().footer()),header:{host:null,floating:null,placeholder:null},footer:{host:null,floating:null,
+placeholder:null}};this.dom.header.host=this.dom.thead.parent();this.dom.footer.host=this.dom.tfoot.parent();a=a.settings()[0];if(a._fixedHeader)throw"FixedHeader already initialised on table "+a.nTable.id;a._fixedHeader=this;this._constructor()};c.extend(l.prototype,{destroy:function(){this.s.dt.off(".dtfc");c(d).off(this.s.namespace);this.c.header&&this._modeChange("in-place","header",!0);this.c.footer&&this.dom.tfoot.length&&this._modeChange("in-place","footer",!0)},enable:function(a,b){this.s.enable=
+a;if(b||b===h)this._positions(),this._scroll(!0)},enabled:function(){return this.s.enable},headerOffset:function(a){a!==h&&(this.c.headerOffset=a,this.update());return this.c.headerOffset},footerOffset:function(a){a!==h&&(this.c.footerOffset=a,this.update());return this.c.footerOffset},update:function(){var a=this.s.dt.table().node();c(a).is(":visible")?this.enable(!0,!1):this.enable(!1,!1);this._positions();this._scroll(!0)},_constructor:function(){var a=this,b=this.s.dt;c(d).on("scroll"+this.s.namespace,
+function(){a._scroll()}).on("resize"+this.s.namespace,g.util.throttle(function(){a.s.position.windowHeight=c(d).height();a.update()},50));var k=c(".fh-fixedHeader");!this.c.headerOffset&&k.length&&(this.c.headerOffset=k.outerHeight());k=c(".fh-fixedFooter");!this.c.footerOffset&&k.length&&(this.c.footerOffset=k.outerHeight());b.on("column-reorder.dt.dtfc column-visibility.dt.dtfc draw.dt.dtfc column-sizing.dt.dtfc responsive-display.dt.dtfc",function(){a.update()});b.on("destroy.dtfc",function(){a.destroy()});
+this._positions();this._scroll()},_clone:function(a,b){var k=this.s.dt,e=this.dom[a],f="header"===a?this.dom.thead:this.dom.tfoot;!b&&e.floating?e.floating.removeClass("fixedHeader-floating fixedHeader-locked"):(e.floating&&(e.placeholder.remove(),this._unsize(a),e.floating.children().detach(),e.floating.remove()),e.floating=c(k.table().node().cloneNode(!1)).css("table-layout","fixed").attr("aria-hidden","true").removeAttr("id").append(f).appendTo("body"),e.placeholder=f.clone(!1),e.placeholder.find("*[id]").removeAttr("id"),
+e.host.prepend(e.placeholder),this._matchWidths(e.placeholder,e.floating))},_matchWidths:function(a,b){var k=function(b){return c(b,a).map(function(){return c(this).width()}).toArray()},e=function(a,e){c(a,b).each(function(a){c(this).css({width:e[a],minWidth:e[a]})})},f=k("th");k=k("td");e("th",f);e("td",k)},_unsize:function(a){var b=this.dom[a].floating;b&&("footer"===a||"header"===a&&!this.s.autoWidth)?c("th, td",b).css({width:"",minWidth:""}):b&&"header"===a&&c("th, td",b).css("min-width","")},
+_horizontal:function(a,b){var c=this.dom[a],e=this.s.position,f=this.s.scrollLeft;c.floating&&f[a]!==b&&(c.floating.css("left",e.left-b),f[a]=b)},_modeChange:function(a,b,k){var e=this.dom[b],d=this.s.position,g=function(a){e.floating.attr("style",function(b,c){return(c||"")+"width: "+a+"px !important;"})},h=this.dom["footer"===b?"tfoot":"thead"],l=c.contains(h[0],f.activeElement)?f.activeElement:null;l&&l.blur();"in-place"===a?(e.placeholder&&(e.placeholder.remove(),e.placeholder=null),this._unsize(b),
+"header"===b?e.host.prepend(h):e.host.append(h),e.floating&&(e.floating.remove(),e.floating=null)):"in"===a?(this._clone(b,k),e.floating.addClass("fixedHeader-floating").css("header"===b?"top":"bottom",this.c[b+"Offset"]).css("left",d.left+"px"),g(d.width),"footer"===b&&e.floating.css("top","")):"below"===a?(this._clone(b,k),e.floating.addClass("fixedHeader-locked").css("top",d.tfootTop-d.theadHeight).css("left",d.left+"px"),g(d.width)):"above"===a&&(this._clone(b,k),e.floating.addClass("fixedHeader-locked").css("top",
+d.tbodyTop).css("left",d.left+"px"),g(d.width));l&&l!==f.activeElement&&setTimeout(function(){l.focus()},10);this.s.scrollLeft.header=-1;this.s.scrollLeft.footer=-1;this.s[b+"Mode"]=a},_positions:function(){var a=this.s.dt.table(),b=this.s.position,f=this.dom;a=c(a.node());var e=a.children("thead"),d=a.children("tfoot");f=f.tbody;b.visible=a.is(":visible");b.width=a.outerWidth();b.left=a.offset().left;b.theadTop=e.offset().top;b.tbodyTop=f.offset().top;b.tbodyHeight=f.outerHeight();b.theadHeight=
+b.tbodyTop-b.theadTop;d.length?(b.tfootTop=d.offset().top,b.tfootBottom=b.tfootTop+d.outerHeight(),b.tfootHeight=b.tfootBottom-b.tfootTop):(b.tfootTop=b.tbodyTop+f.outerHeight(),b.tfootBottom=b.tfootTop,b.tfootHeight=b.tfootTop)},_scroll:function(a){var b=c(f).scrollTop(),d=c(f).scrollLeft(),e=this.s.position;if(this.c.header){var g=this.s.enable?!e.visible||b<=e.theadTop-this.c.headerOffset?"in-place":b<=e.tfootTop-e.theadHeight-this.c.headerOffset?"in":"below":"in-place";(a||g!==this.s.headerMode)&&
+this._modeChange(g,"header",a);this._horizontal("header",d)}this.c.footer&&this.dom.tfoot.length&&(b=this.s.enable?!e.visible||b+e.windowHeight>=e.tfootBottom+this.c.footerOffset?"in-place":e.windowHeight+b>e.tbodyTop+e.tfootHeight+this.c.footerOffset?"in":"above":"in-place",(a||b!==this.s.footerMode)&&this._modeChange(b,"footer",a),this._horizontal("footer",d))}});l.version="3.1.7";l.defaults={header:!0,footer:!1,headerOffset:0,footerOffset:0};c.fn.dataTable.FixedHeader=l;c.fn.DataTable.FixedHeader=
+l;c(f).on("init.dt.dtfh",function(a,b,d){"dt"===a.namespace&&(a=b.oInit.fixedHeader,d=g.defaults.fixedHeader,!a&&!d||b._fixedHeader||(d=c.extend({},d,a),!1!==a&&new l(b,d)))});g.Api.register("fixedHeader()",function(){});g.Api.register("fixedHeader.adjust()",function(){return this.iterator("table",function(a){(a=a._fixedHeader)&&a.update()})});g.Api.register("fixedHeader.enable()",function(a){return this.iterator("table",function(b){b=b._fixedHeader;a=a!==h?a:!0;b&&a!==b.enabled()&&b.enable(a)})});
+g.Api.register("fixedHeader.enabled()",function(){if(this.context.length){var a=this.content[0]._fixedHeader;if(a)return a.enabled()}return!1});g.Api.register("fixedHeader.disable()",function(){return this.iterator("table",function(a){(a=a._fixedHeader)&&a.enabled()&&a.enable(!1)})});c.each(["header","footer"],function(a,b){g.Api.register("fixedHeader."+b+"Offset()",function(a){var c=this.context;return a===h?c.length&&c[0]._fixedHeader?c[0]._fixedHeader[b+"Offset"]():h:this.iterator("table",function(c){if(c=
+c._fixedHeader)c[b+"Offset"](a)})})});return l});
diff --git a/koha-tmpl/intranet-tmpl/prog/js/datatables.js b/koha-tmpl/intranet-tmpl/prog/js/datatables.js
index be2da8c976..6baa84b8bb 100644
--- a/koha-tmpl/intranet-tmpl/prog/js/datatables.js
+++ b/koha-tmpl/intranet-tmpl/prog/js/datatables.js
@@ -50,6 +50,7 @@ var dataTablesDefaults = {
     }],
     "aLengthMenu": [[10, 20, 50, 100, -1], [10, 20, 50, 100, __('All')]],
     "iDisplayLength": 20,
+    "fixedHeader": true,
     initComplete: function( settings) {
         var tableId = settings.nTable.id
         // When the DataTables search function is triggered,
-- 
2.20.1