diff --git a/datatables.json b/datatables.json
index cf6f517..8bfdee5 100644
--- a/datatables.json
+++ b/datatables.json
@@ -25,5 +25,5 @@
     ],
     "src-repo": "http://github.com/DataTables/Buttons",
     "last-tag": "3.1.2",
-    "last-sync": "3583195f85049bbf3dde8d15b3768617bc8183af"
+    "last-sync": "822bb21ef766a967c1d99819d00aa273d2001b30"
 }
\ No newline at end of file
diff --git a/js/dataTables.buttons.js b/js/dataTables.buttons.js
index 43582aa..fa5dea2 100644
--- a/js/dataTables.buttons.js
+++ b/js/dataTables.buttons.js
@@ -1037,7 +1037,7 @@ $.extend(Buttons.prototype, {
 		}
 
 		for (var i = 0, ien = buttons.length; i < ien; i++) {
-			if (buttons[i].node === node || $(buttons[i].node).children(node).length) {
+			if (buttons[i].node === node || $(buttons[i].node).children().eq(0).get(0) === node) {
 				return buttons[i];
 			}
 
diff --git a/js/dataTables.buttons.min.js b/js/dataTables.buttons.min.js
index c40cfee..0e8b7d7 100644
--- a/js/dataTables.buttons.min.js
+++ b/js/dataTables.buttons.min.js
@@ -1,4 +1,4 @@
 /*! Buttons for DataTables 3.1.2
  * © SpryMedia Ltd - datatables.net/license
  */
-!function(e){var o,i;"function"==typeof define&&define.amd?define(["jquery","datatables.net"],function(t){return e(t,window,document)}):"object"==typeof exports?(o=require("jquery"),i=function(t,n){n.fn.dataTable||require("datatables.net")(t,n)},"undefined"==typeof window?module.exports=function(t,n){return t=t||window,n=n||o(t),i(t,n),e(n,t,t.document)}:(i(window,o),module.exports=e(o,window,window.document))):e(jQuery,window,document)}(function(x,m,v){"use strict";var e=x.fn.dataTable,o=0,C=0,w=e.ext.buttons,i=null;function y(t,n,e){x.fn.animate?t.stop().fadeIn(n,e):(t.css("display","block"),e&&e.call(t))}function _(t,n,e){x.fn.animate?t.stop().fadeOut(n,e):(t.css("display","none"),e&&e.call(t))}function A(n,t){if(!e.versionCheck("2"))throw"Warning: Buttons requires DataTables 2 or newer";if(!(this instanceof A))return function(t){return new A(t,n).container()};!0===(t=void 0===t?{}:t)&&(t={}),Array.isArray(t)&&(t={buttons:t}),this.c=x.extend(!0,{},A.defaults,t),t.buttons&&(this.c.buttons=t.buttons),this.s={dt:new e.Api(n),buttons:[],listenKeys:"",namespace:"dtb"+o++},this.dom={container:x("<"+this.c.dom.container.tag+"/>").addClass(this.c.dom.container.className)},this._constructor()}x.extend(A.prototype,{action:function(t,n){t=this._nodeToButton(t);return void 0===n?t.conf.action:(t.conf.action=n,this)},active:function(t,n){var t=this._nodeToButton(t),e=this.c.dom.button.active,o=x(t.node);return t.inCollection&&this.c.dom.collection.button&&void 0!==this.c.dom.collection.button.active&&(e=this.c.dom.collection.button.active),void 0===n?o.hasClass(e):(o.toggleClass(e,void 0===n||n),this)},add:function(t,n,e){var o=this.s.buttons;if("string"==typeof n){for(var i=n.split("-"),s=this.s,r=0,a=i.length-1;r<a;r++)s=s.buttons[+i[r]];o=s.buttons,n=+i[i.length-1]}return this._expandButton(o,t,void 0!==t?t.split:void 0,(void 0===t||void 0===t.split||0===t.split.length)&&void 0!==s,!1,n),void 0!==e&&!0!==e||this._draw(),this},collectionRebuild:function(t,n){var e=this._nodeToButton(t);if(void 0!==n){for(var o=e.buttons.length-1;0<=o;o--)this.remove(e.buttons[o].node);for(e.conf.prefixButtons&&n.unshift.apply(n,e.conf.prefixButtons),e.conf.postfixButtons&&n.push.apply(n,e.conf.postfixButtons),o=0;o<n.length;o++){var i=n[o];this._expandButton(e.buttons,i,void 0!==i&&void 0!==i.config&&void 0!==i.config.split,!0,void 0!==i.parentConf&&void 0!==i.parentConf.split,null,i.parentConf)}}this._draw(e.collection,e.buttons)},container:function(){return this.dom.container},disable:function(t){t=this._nodeToButton(t);return x(t.node).addClass(this.c.dom.button.disabled).prop("disabled",!0),this},destroy:function(){x("body").off("keyup."+this.s.namespace);for(var t=this.s.buttons.slice(),n=0,e=t.length;n<e;n++)this.remove(t[n].node);this.dom.container.remove();var o=this.s.dt.settings()[0];for(n=0,e=o.length;n<e;n++)if(o.inst===this){o.splice(n,1);break}return this},enable:function(t,n){return!1===n?this.disable(t):(n=this._nodeToButton(t),x(n.node).removeClass(this.c.dom.button.disabled).prop("disabled",!1),this)},index:function(t,n,e){n||(n="",e=this.s.buttons);for(var o=0,i=e.length;o<i;o++){var s=e[o].buttons;if(e[o].node===t)return n+o;if(s&&s.length){s=this.index(t,o+"-",s);if(null!==s)return s}}return null},name:function(){return this.c.name},node:function(t){return t?(t=this._nodeToButton(t),x(t.node)):this.dom.container},processing:function(t,n){var e=this.s.dt,o=this._nodeToButton(t);return void 0===n?x(o.node).hasClass("processing"):(x(o.node).toggleClass("processing",n),x(e.table().node()).triggerHandler("buttons-processing.dt",[n,e.button(t),e,x(t),o.conf]),this)},remove:function(t){var n=this._nodeToButton(t),e=this._nodeToHost(t),o=this.s.dt;if(n.buttons.length)for(var i=n.buttons.length-1;0<=i;i--)this.remove(n.buttons[i].node);n.conf.destroying=!0,n.conf.destroy&&n.conf.destroy.call(o.button(t),o,x(t),n.conf),this._removeKey(n.conf),x(n.node).remove();o=x.inArray(n,e);return e.splice(o,1),this},text:function(t,n){function e(t){return"function"==typeof t?t(i,s,o.conf):t}var o=this._nodeToButton(t),t=o.textNode,i=this.s.dt,s=x(o.node);return void 0===n?e(o.conf.text):(o.conf.text=n,t.html(e(n)),this)},_constructor:function(){var e=this,t=this.s.dt,o=t.settings()[0],n=this.c.buttons;o._buttons||(o._buttons=[]),o._buttons.push({inst:this,name:this.c.name});for(var i=0,s=n.length;i<s;i++)this.add(n[i]);t.on("destroy",function(t,n){n===o&&e.destroy()}),x("body").on("keyup."+this.s.namespace,function(t){var n;v.activeElement&&v.activeElement!==v.body||(n=String.fromCharCode(t.keyCode).toLowerCase(),-1!==e.s.listenKeys.toLowerCase().indexOf(n)&&e._keypress(n,t))})},_addKey:function(t){t.key&&(this.s.listenKeys+=(x.isPlainObject(t.key)?t.key:t).key)},_draw:function(t,n){t||(t=this.dom.container,n=this.s.buttons),t.children().detach();for(var e=0,o=n.length;e<o;e++)t.append(n[e].inserter),t.append(" "),n[e].buttons&&n[e].buttons.length&&this._draw(n[e].collection,n[e].buttons)},_expandButton:function(t,n,e,o,i,s,r){for(var a,l=this.s.dt,c=this.c.dom.collection,u=Array.isArray(n)?n:[n],d=0,f=(u=void 0===n?Array.isArray(e)?e:[e]:u).length;d<f;d++){var p=this._resolveExtends(u[d]);if(p)if(a=!(!p.config||!p.config.split),Array.isArray(p))this._expandButton(t,p,void 0!==h&&void 0!==h.conf?h.conf.split:void 0,o,void 0!==r&&void 0!==r.split,s,r);else{var h=this._buildButton(p,o,void 0!==p.split||void 0!==p.config&&void 0!==p.config.split,i);if(h){if(null!=s?(t.splice(s,0,h),s++):t.push(h),h.conf.buttons&&(h.collection=x("<"+c.container.content.tag+"/>"),h.conf._collection=h.collection,x(h.node).append(c.action.dropHtml),this._expandButton(h.buttons,h.conf.buttons,h.conf.split,!a,a,s,h.conf)),h.conf.split){h.collection=x("<"+c.container.tag+"/>"),h.conf._collection=h.collection;for(var b=0;b<h.conf.split.length;b++){var g=h.conf.split[b];"object"==typeof g&&(g.parent=r,void 0===g.collectionLayout&&(g.collectionLayout=h.conf.collectionLayout),void 0===g.dropup&&(g.dropup=h.conf.dropup),void 0===g.fade)&&(g.fade=h.conf.fade)}this._expandButton(h.buttons,h.conf.buttons,h.conf.split,!a,a,s,h.conf)}h.conf.parent=r,p.init&&p.init.call(l.button(h.node),l,x(h.node),p)}}}},_buildButton:function(n,t,e,o){function i(t){return"function"==typeof t?t(f,c,n):t}var s,r,a,l,c,u=this,d=this.c.dom,f=this.s.dt,p=x.extend(!0,{},d.button);if(t&&e&&d.collection.split?x.extend(!0,p,d.collection.split.action):o||t?x.extend(!0,p,d.collection.button):e&&x.extend(!0,p,d.split.button),n.spacer)return d=x("<"+p.spacer.tag+"/>").addClass("dt-button-spacer "+n.style+" "+p.spacer.className).html(i(n.text)),{conf:n,node:d,inserter:d,buttons:[],inCollection:t,isSplit:e,collection:null,textNode:d};if(n.available&&!n.available(f,n)&&!n.html)return!1;n.html?c=x(n.html):(r=function(t,n,e,o,i){o.action.call(n.button(e),t,n,e,o,i),x(n.table().node()).triggerHandler("buttons-action.dt",[n.button(e),n,e,o])},a=function(t,n,e,o){o.async?(u.processing(e[0],!0),setTimeout(function(){r(t,n,e,o,function(){u.processing(e[0],!1)})},o.async)):r(t,n,e,o,function(){})},d=n.tag||p.tag,l=void 0===n.clickBlurs||n.clickBlurs,c=x("<"+d+"/>").addClass(p.className).attr("tabindex",this.s.dt.settings()[0].iTabIndex).attr("aria-controls",this.s.dt.table().node().id).on("click.dtb",function(t){t.preventDefault(),!c.hasClass(p.disabled)&&n.action&&a(t,f,c,n),l&&c.trigger("blur")}).on("keypress.dtb",function(t){13===t.keyCode&&(t.preventDefault(),!c.hasClass(p.disabled))&&n.action&&a(t,f,c,n)}),"a"===d.toLowerCase()&&c.attr("href","#"),"button"===d.toLowerCase()&&c.attr("type","button"),s=p.liner.tag?(d=x("<"+p.liner.tag+"/>").html(i(n.text)).addClass(p.liner.className),"a"===p.liner.tag.toLowerCase()&&d.attr("href","#"),c.append(d),d):(c.html(i(n.text)),c),!1===n.enabled&&c.addClass(p.disabled),n.className&&c.addClass(n.className),n.titleAttr&&c.attr("title",i(n.titleAttr)),n.attr&&c.attr(n.attr),n.namespace||(n.namespace=".dt-button-"+C++),void 0!==n.config&&n.config.split&&(n.split=n.config.split));var h,b,g,m,v,y,d=this.c.dom.buttonContainer,d=d&&d.tag?x("<"+d.tag+"/>").addClass(d.className).append(c):c;return this._addKey(n),this.c.buttonCreated&&(d=this.c.buttonCreated(n,d)),e&&(b=(h=t?x.extend(!0,this.c.dom.split,this.c.dom.collection.split):this.c.dom.split).wrapper,g=x("<"+b.tag+"/>").addClass(b.className).append(c),m=x.extend(n,{align:h.dropdown.align,attr:{"aria-haspopup":"dialog","aria-expanded":!1},className:h.dropdown.className,closeButton:!1,splitAlignClass:h.dropdown.splitAlignClass,text:h.dropdown.text}),this._addKey(m),v=function(t,n,e,o){w.split.action.call(n.button(g),t,n,e,o),x(n.table().node()).triggerHandler("buttons-action.dt",[n.button(e),n,e,o]),e.attr("aria-expanded",!0)},y=x('<button class="'+h.dropdown.className+' dt-button"></button>').html(h.dropdown.dropHtml).on("click.dtb",function(t){t.preventDefault(),t.stopPropagation(),y.hasClass(p.disabled)||v(t,f,y,m),l&&y.trigger("blur")}).on("keypress.dtb",function(t){13===t.keyCode&&(t.preventDefault(),y.hasClass(p.disabled)||v(t,f,y,m))}),0===n.split.length&&y.addClass("dtb-hide-drop"),g.append(y).attr(m.attr)),{conf:n,node:(e?g:c).get(0),inserter:e?g:d,buttons:[],inCollection:t,isSplit:e,inSplit:o,collection:null,textNode:s}},_nodeToButton:function(t,n){for(var e=0,o=(n=n||this.s.buttons).length;e<o;e++){if(n[e].node===t||x(n[e].node).children(t).length)return n[e];if(n[e].buttons.length){var i=this._nodeToButton(t,n[e].buttons);if(i)return i}}},_nodeToHost:function(t,n){for(var e=0,o=(n=n||this.s.buttons).length;e<o;e++){if(n[e].node===t)return n;if(n[e].buttons.length){var i=this._nodeToHost(t,n[e].buttons);if(i)return i}}},_keypress:function(s,r){var a;r._buttonsHandled||(a=function(t){for(var n,e,o=0,i=t.length;o<i;o++)n=t[o].conf,e=t[o].node,!n.key||n.key!==s&&(!x.isPlainObject(n.key)||n.key.key!==s||n.key.shiftKey&&!r.shiftKey||n.key.altKey&&!r.altKey||n.key.ctrlKey&&!r.ctrlKey||n.key.metaKey&&!r.metaKey)||(r._buttonsHandled=!0,x(e).click()),t[o].buttons.length&&a(t[o].buttons)})(this.s.buttons)},_removeKey:function(t){var n;t.key&&(t=(x.isPlainObject(t.key)?t.key:t).key,n=this.s.listenKeys.split(""),t=x.inArray(t,n),n.splice(t,1),this.s.listenKeys=n.join(""))},_resolveExtends:function(e){function t(t){for(var n=0;!x.isPlainObject(t)&&!Array.isArray(t);){if(void 0===t)return;if("function"==typeof t){if(!(t=t.call(i,s,e)))return!1}else if("string"==typeof t){if(!w[t])return{html:t};t=w[t]}if(30<++n)throw"Buttons: Too many iterations"}return Array.isArray(t)?t:x.extend({},t)}var n,o,i=this,s=this.s.dt;for(e=t(e);e&&e.extend;){if(!w[e.extend])throw"Cannot extend unknown button type: "+e.extend;var r=t(w[e.extend]);if(Array.isArray(r))return r;if(!r)return!1;var a=r.className;void 0!==e.config&&void 0!==r.config&&(e.config=x.extend({},r.config,e.config)),e=x.extend({},r,e),a&&e.className!==a&&(e.className=a+" "+e.className),e.extend=r.extend}var l=e.postfixButtons;if(l)for(e.buttons||(e.buttons=[]),n=0,o=l.length;n<o;n++)e.buttons.push(l[n]);var c=e.prefixButtons;if(c)for(e.buttons||(e.buttons=[]),n=0,o=c.length;n<o;n++)e.buttons.splice(n,0,c[n]);return e},_popover:function(o,t,n){function i(){p=!0,_(x(b),h.fade,function(){x(this).detach()}),x(d.buttons('[aria-haspopup="dialog"][aria-expanded="true"]').nodes()).attr("aria-expanded","false"),x("div.dt-button-background").off("click.dtb-collection"),A.background(!1,h.backgroundClassName,h.fade,g),x(m).off("resize.resize.dtb-collection"),x("body").off(".dtb-collection"),d.off("buttons-action.b-internal"),d.off("destroy")}var e,s,r,a,l,c,u,d=t,f=this.c,p=!1,h=x.extend({align:"button-left",autoClose:!1,background:!0,backgroundClassName:"dt-button-background",closeButton:!0,containerClassName:f.dom.collection.container.className,contentClassName:f.dom.collection.container.content.className,collectionLayout:"",collectionTitle:"",dropup:!1,fade:400,popoverTitle:"",rightAlignClassName:"dt-button-right",tag:f.dom.collection.container.tag},n),b=h.tag+"."+h.containerClassName.replace(/ /g,"."),g=t.node();!1===o?i():((f=x(d.buttons('[aria-haspopup="dialog"][aria-expanded="true"]').nodes())).length&&(g.closest(b).length&&(g=f.eq(0)),i()),h.sort&&((n=x("button",o).map(function(t,n){return{text:x(n).text(),el:n}}).toArray()).sort(function(t,n){return t.text.localeCompare(n.text)}),x(o).append(n.map(function(t){return t.el}))),f=x(".dt-button",o).length,n="",3===f?n="dtb-b3":2===f?n="dtb-b2":1===f&&(n="dtb-b1"),e=x("<"+h.tag+"/>").addClass(h.containerClassName).addClass(h.collectionLayout).addClass(h.splitAlignClass).addClass(n).css("display","none").attr({"aria-modal":!0,role:"dialog"}),o=x(o).addClass(h.contentClassName).attr("role","menu").appendTo(e),g.attr("aria-expanded","true"),g.parents("body")[0]!==v.body&&(g=v.body.lastChild),h.popoverTitle?e.prepend('<div class="dt-button-collection-title">'+h.popoverTitle+"</div>"):h.collectionTitle&&e.prepend('<div class="dt-button-collection-title">'+h.collectionTitle+"</div>"),h.closeButton&&e.prepend('<div class="dtb-popover-close">&times;</div>').addClass("dtb-collection-closeable"),y(e.insertAfter(g),h.fade),f=x(t.table().container()),n=e.css("position"),"container"!==h.span&&"dt-container"!==h.align||(g=g.parent(),e.css("width",f.width())),"absolute"===n?(t=x(g[0].offsetParent),f=g.position(),n=g.offset(),a=t.offset(),s=t.position(),r=m.getComputedStyle(t[0]),a.height=t.outerHeight(),a.width=t.width()+parseFloat(r.paddingLeft),a.right=a.left+a.width,a.bottom=a.top+a.height,a=f.top+g.outerHeight(),l=f.left,e.css({top:a,left:l}),r=m.getComputedStyle(e[0]),(c=e.offset()).height=e.outerHeight(),c.width=e.outerWidth(),c.right=c.left+c.width,c.bottom=c.top+c.height,c.marginTop=parseFloat(r.marginTop),c.marginBottom=parseFloat(r.marginBottom),h.dropup&&(a=f.top-c.height-c.marginTop-c.marginBottom),"button-right"!==h.align&&!e.hasClass(h.rightAlignClassName)||(l=f.left-c.width+g.outerWidth()),"dt-container"!==h.align&&"container"!==h.align||l<f.left&&(l=-f.left),s.left+l+c.width>x(m).width()&&(l=x(m).width()-c.width-s.left),n.left+l<0&&(l=-n.left),s.top+a+c.height>x(m).height()+x(m).scrollTop()&&(a=f.top-c.height-c.marginTop-c.marginBottom),t.offset().top+a<x(m).scrollTop()&&(a=f.top+g.outerHeight()),e.css({top:a,left:l})):((u=function(){var t=x(m).height()/2,n=e.height()/2;e.css("marginTop",-1*(n=t<n?t:n))})(),x(m).on("resize.dtb-collection",function(){u()})),h.background&&A.background(!0,h.backgroundClassName,h.fade,h.backgroundHost||g),x("div.dt-button-background").on("click.dtb-collection",function(){}),h.autoClose&&setTimeout(function(){d.on("buttons-action.b-internal",function(t,n,e,o){o[0]!==g[0]&&i()})},0),x(e).trigger("buttons-popover.dt"),d.on("destroy",i),setTimeout(function(){p=!1,x("body").on("click.dtb-collection",function(t){var n,e;!p&&(n=x.fn.addBack?"addBack":"andSelf",e=x(t.target).parent()[0],!x(t.target).parents()[n]().filter(o).length&&!x(e).hasClass("dt-buttons")||x(t.target).hasClass("dt-button-background"))&&i()}).on("keyup.dtb-collection",function(t){27===t.keyCode&&i()}).on("keydown.dtb-collection",function(t){var n=x("a, 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c=[],u=function(t,n,e){for(var o,i,s=0,r=n.length;s<r;s++)(o=n[s])&&(t.push({node:o.node,name:o.conf.name,idx:i=void 0!==e?e+s:s+""}),o.buttons)&&u(t,o.buttons,i+"-")},d=function(t,n){var e=[],o=(u(e,n.s.buttons),x.map(e,function(t){return t.node}));if(Array.isArray(t)||t instanceof x)for(s=0,r=t.length;s<r;s++)d(t[s],n);else if(null==t||"*"===t)for(s=0,r=e.length;s<r;s++)c.push({inst:n,node:e[s].node});else if("number"==typeof t)n.s.buttons[t]&&c.push({inst:n,node:n.s.buttons[t].node});else if("string"==typeof t)if(-1!==t.indexOf(","))for(var i=t.split(","),s=0,r=i.length;s<r;s++)d(i[s].trim(),n);else if(t.match(/^\d+(\-\d+)*$/)){var a=x.map(e,function(t){return t.idx});c.push({inst:n,node:e[x.inArray(t,a)].node})}else if(-1!==t.indexOf(":name")){var l=t.replace(":name","");for(s=0,r=e.length;s<r;s++)e[s].name===l&&c.push({inst:n,node:e[s].node})}else x(o).filter(t).each(function(){c.push({inst:n,node:this})});else"object"==typeof 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n;v.activeElement&&v.activeElement!==v.body||(n=String.fromCharCode(t.keyCode).toLowerCase(),-1!==e.s.listenKeys.toLowerCase().indexOf(n)&&e._keypress(n,t))})},_addKey:function(t){t.key&&(this.s.listenKeys+=(x.isPlainObject(t.key)?t.key:t).key)},_draw:function(t,n){t||(t=this.dom.container,n=this.s.buttons),t.children().detach();for(var e=0,o=n.length;e<o;e++)t.append(n[e].inserter),t.append(" "),n[e].buttons&&n[e].buttons.length&&this._draw(n[e].collection,n[e].buttons)},_expandButton:function(t,n,e,o,i,s,r){for(var a,l=this.s.dt,c=this.c.dom.collection,u=Array.isArray(n)?n:[n],d=0,f=(u=void 0===n?Array.isArray(e)?e:[e]:u).length;d<f;d++){var p=this._resolveExtends(u[d]);if(p)if(a=!(!p.config||!p.config.split),Array.isArray(p))this._expandButton(t,p,void 0!==h&&void 0!==h.conf?h.conf.split:void 0,o,void 0!==r&&void 0!==r.split,s,r);else{var h=this._buildButton(p,o,void 0!==p.split||void 0!==p.config&&void 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\ No newline at end of file
diff --git a/js/dataTables.buttons.min.mjs b/js/dataTables.buttons.min.mjs
index 28fad8d..9c8e00d 100644
--- a/js/dataTables.buttons.min.mjs
+++ b/js/dataTables.buttons.min.mjs
@@ -1,4 +1,4 @@
 /*! Buttons for DataTables 3.1.2
  * © SpryMedia Ltd - datatables.net/license
  */
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e=this._nodeToButton(t);if(void 0!==n){for(var o=e.buttons.length-1;0<=o;o--)this.remove(e.buttons[o].node);for(e.conf.prefixButtons&&n.unshift.apply(n,e.conf.prefixButtons),e.conf.postfixButtons&&n.push.apply(n,e.conf.postfixButtons),o=0;o<n.length;o++){var i=n[o];this._expandButton(e.buttons,i,void 0!==i&&void 0!==i.config&&void 0!==i.config.split,!0,void 0!==i.parentConf&&void 0!==i.parentConf.split,null,i.parentConf)}}this._draw(e.collection,e.buttons)},container:function(){return this.dom.container},disable:function(t){t=this._nodeToButton(t);return $(t.node).addClass(this.c.dom.button.disabled).prop("disabled",!0),this},destroy:function(){$("body").off("keyup."+this.s.namespace);for(var t=this.s.buttons.slice(),n=0,e=t.length;n<e;n++)this.remove(t[n].node);this.dom.container.remove();var o=this.s.dt.settings()[0];for(n=0,e=o.length;n<e;n++)if(o.inst===this){o.splice(n,1);break}return this},enable:function(t,n){return!1===n?this.disable(t):(n=this._nodeToButton(t),$(n.node).removeClass(this.c.dom.button.disabled).prop("disabled",!1),this)},index:function(t,n,e){n||(n="",e=this.s.buttons);for(var o=0,i=e.length;o<i;o++){var s=e[o].buttons;if(e[o].node===t)return n+o;if(s&&s.length){s=this.index(t,o+"-",s);if(null!==s)return s}}return null},name:function(){return this.c.name},node:function(t){return t?(t=this._nodeToButton(t),$(t.node)):this.dom.container},processing:function(t,n){var e=this.s.dt,o=this._nodeToButton(t);return void 0===n?$(o.node).hasClass("processing"):($(o.node).toggleClass("processing",n),$(e.table().node()).triggerHandler("buttons-processing.dt",[n,e.button(t),e,$(t),o.conf]),this)},remove:function(t){var n=this._nodeToButton(t),e=this._nodeToHost(t),o=this.s.dt;if(n.buttons.length)for(var 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n;document.activeElement&&document.activeElement!==document.body||(n=String.fromCharCode(t.keyCode).toLowerCase(),-1!==e.s.listenKeys.toLowerCase().indexOf(n)&&e._keypress(n,t))})},_addKey:function(t){t.key&&(this.s.listenKeys+=($.isPlainObject(t.key)?t.key:t).key)},_draw:function(t,n){t||(t=this.dom.container,n=this.s.buttons),t.children().detach();for(var e=0,o=n.length;e<o;e++)t.append(n[e].inserter),t.append(" "),n[e].buttons&&n[e].buttons.length&&this._draw(n[e].collection,n[e].buttons)},_expandButton:function(t,n,e,o,i,s,a){for(var r,l=this.s.dt,u=this.c.dom.collection,c=Array.isArray(n)?n:[n],d=0,f=(c=void 0===n?Array.isArray(e)?e:[e]:c).length;d<f;d++){var p=this._resolveExtends(c[d]);if(p)if(r=!(!p.config||!p.config.split),Array.isArray(p))this._expandButton(t,p,void 0!==b&&void 0!==b.conf?b.conf.split:void 0,o,void 0!==a&&void 0!==a.split,s,a);else{var b=this._buildButton(p,o,void 0!==p.split||void 0!==p.config&&void 0!==p.config.split,i);if(b){if(null!=s?(t.splice(s,0,b),s++):t.push(b),b.conf.buttons&&(b.collection=$("<"+u.container.content.tag+"/>"),b.conf._collection=b.collection,$(b.node).append(u.action.dropHtml),this._expandButton(b.buttons,b.conf.buttons,b.conf.split,!r,r,s,b.conf)),b.conf.split){b.collection=$("<"+u.container.tag+"/>"),b.conf._collection=b.collection;for(var h=0;h<b.conf.split.length;h++){var g=b.conf.split[h];"object"==typeof g&&(g.parent=a,void 0===g.collectionLayout&&(g.collectionLayout=b.conf.collectionLayout),void 0===g.dropup&&(g.dropup=b.conf.dropup),void 0===g.fade)&&(g.fade=b.conf.fade)}this._expandButton(b.buttons,b.conf.buttons,b.conf.split,!r,r,s,b.conf)}b.conf.parent=a,p.init&&p.init.call(l.button(b.node),l,$(b.node),p)}}}},_buildButton:function(n,t,e,o){function i(t){return"function"==typeof t?t(f,u,n):t}var s,a,r,l,u,c=this,d=this.c.dom,f=this.s.dt,p=$.extend(!0,{},d.button);if(t&&e&&d.collection.split?$.extend(!0,p,d.collection.split.action):o||t?$.extend(!0,p,d.collection.button):e&&$.extend(!0,p,d.split.button),n.spacer)return d=$("<"+p.spacer.tag+"/>").addClass("dt-button-spacer "+n.style+" "+p.spacer.className).html(i(n.text)),{conf:n,node:d,inserter:d,buttons:[],inCollection:t,isSplit:e,collection:null,textNode:d};if(n.available&&!n.available(f,n)&&!n.html)return!1;n.html?u=$(n.html):(a=function(t,n,e,o,i){o.action.call(n.button(e),t,n,e,o,i),$(n.table().node()).triggerHandler("buttons-action.dt",[n.button(e),n,e,o])},r=function(t,n,e,o){o.async?(c.processing(e[0],!0),setTimeout(function(){a(t,n,e,o,function(){c.processing(e[0],!1)})},o.async)):a(t,n,e,o,function(){})},d=n.tag||p.tag,l=void 0===n.clickBlurs||n.clickBlurs,u=$("<"+d+"/>").addClass(p.className).attr("tabindex",this.s.dt.settings()[0].iTabIndex).attr("aria-controls",this.s.dt.table().node().id).on("click.dtb",function(t){t.preventDefault(),!u.hasClass(p.disabled)&&n.action&&r(t,f,u,n),l&&u.trigger("blur")}).on("keypress.dtb",function(t){13===t.keyCode&&(t.preventDefault(),!u.hasClass(p.disabled))&&n.action&&r(t,f,u,n)}),"a"===d.toLowerCase()&&u.attr("href","#"),"button"===d.toLowerCase()&&u.attr("type","button"),s=p.liner.tag?(d=$("<"+p.liner.tag+"/>").html(i(n.text)).addClass(p.liner.className),"a"===p.liner.tag.toLowerCase()&&d.attr("href","#"),u.append(d),d):(u.html(i(n.text)),u),!1===n.enabled&&u.addClass(p.disabled),n.className&&u.addClass(n.className),n.titleAttr&&u.attr("title",i(n.titleAttr)),n.attr&&u.attr(n.attr),n.namespace||(n.namespace=".dt-button-"+_buttonCounter++),void 0!==n.config&&n.config.split&&(n.split=n.config.split));var b,h,g,m,v,y,d=this.c.dom.buttonContainer,d=d&&d.tag?$("<"+d.tag+"/>").addClass(d.className).append(u):u;return this._addKey(n),this.c.buttonCreated&&(d=this.c.buttonCreated(n,d)),e&&(h=(b=t?$.extend(!0,this.c.dom.split,this.c.dom.collection.split):this.c.dom.split).wrapper,g=$("<"+h.tag+"/>").addClass(h.className).append(u),m=$.extend(n,{align:b.dropdown.align,attr:{"aria-haspopup":"dialog","aria-expanded":!1},className:b.dropdown.className,closeButton:!1,splitAlignClass:b.dropdown.splitAlignClass,text:b.dropdown.text}),this._addKey(m),v=function(t,n,e,o){_dtButtons.split.action.call(n.button(g),t,n,e,o),$(n.table().node()).triggerHandler("buttons-action.dt",[n.button(e),n,e,o]),e.attr("aria-expanded",!0)},y=$('<button class="'+b.dropdown.className+' dt-button"></button>').html(b.dropdown.dropHtml).on("click.dtb",function(t){t.preventDefault(),t.stopPropagation(),y.hasClass(p.disabled)||v(t,f,y,m),l&&y.trigger("blur")}).on("keypress.dtb",function(t){13===t.keyCode&&(t.preventDefault(),y.hasClass(p.disabled)||v(t,f,y,m))}),0===n.split.length&&y.addClass("dtb-hide-drop"),g.append(y).attr(m.attr)),{conf:n,node:(e?g:u).get(0),inserter:e?g:d,buttons:[],inCollection:t,isSplit:e,inSplit:o,collection:null,textNode:s}},_nodeToButton:function(t,n){for(var e=0,o=(n=n||this.s.buttons).length;e<o;e++){if(n[e].node===t||$(n[e].node).children(t).length)return n[e];if(n[e].buttons.length){var i=this._nodeToButton(t,n[e].buttons);if(i)return i}}},_nodeToHost:function(t,n){for(var e=0,o=(n=n||this.s.buttons).length;e<o;e++){if(n[e].node===t)return n;if(n[e].buttons.length){var i=this._nodeToHost(t,n[e].buttons);if(i)return i}}},_keypress:function(s,a){var r;a._buttonsHandled||(r=function(t){for(var n,e,o=0,i=t.length;o<i;o++)n=t[o].conf,e=t[o].node,!n.key||n.key!==s&&(!$.isPlainObject(n.key)||n.key.key!==s||n.key.shiftKey&&!a.shiftKey||n.key.altKey&&!a.altKey||n.key.ctrlKey&&!a.ctrlKey||n.key.metaKey&&!a.metaKey)||(a._buttonsHandled=!0,$(e).click()),t[o].buttons.length&&r(t[o].buttons)})(this.s.buttons)},_removeKey:function(t){var n;t.key&&(t=($.isPlainObject(t.key)?t.key:t).key,n=this.s.listenKeys.split(""),t=$.inArray(t,n),n.splice(t,1),this.s.listenKeys=n.join(""))},_resolveExtends:function(e){function t(t){for(var n=0;!$.isPlainObject(t)&&!Array.isArray(t);){if(void 0===t)return;if("function"==typeof t){if(!(t=t.call(i,s,e)))return!1}else if("string"==typeof t){if(!_dtButtons[t])return{html:t};t=_dtButtons[t]}if(30<++n)throw"Buttons: Too many iterations"}return Array.isArray(t)?t:$.extend({},t)}var n,o,i=this,s=this.s.dt;for(e=t(e);e&&e.extend;){if(!_dtButtons[e.extend])throw"Cannot extend unknown button type: "+e.extend;var a=t(_dtButtons[e.extend]);if(Array.isArray(a))return a;if(!a)return!1;var r=a.className;void 0!==e.config&&void 0!==a.config&&(e.config=$.extend({},a.config,e.config)),e=$.extend({},a,e),r&&e.className!==r&&(e.className=r+" "+e.className),e.extend=a.extend}var l=e.postfixButtons;if(l)for(e.buttons||(e.buttons=[]),n=0,o=l.length;n<o;n++)e.buttons.push(l[n]);var u=e.prefixButtons;if(u)for(e.buttons||(e.buttons=[]),n=0,o=u.length;n<o;n++)e.buttons.splice(n,0,u[n]);return e},_popover:function(o,t,n){function i(){p=!0,_fadeOut($(h),b.fade,function(){$(this).detach()}),$(d.buttons('[aria-haspopup="dialog"][aria-expanded="true"]').nodes()).attr("aria-expanded","false"),$("div.dt-button-background").off("click.dtb-collection"),Buttons.background(!1,b.backgroundClassName,b.fade,g),$(window).off("resize.resize.dtb-collection"),$("body").off(".dtb-collection"),d.off("buttons-action.b-internal"),d.off("destroy")}var e,s,a,r,l,u,c,d=t,f=this.c,p=!1,b=$.extend({align:"button-left",autoClose:!1,background:!0,backgroundClassName:"dt-button-background",closeButton:!0,containerClassName:f.dom.collection.container.className,contentClassName:f.dom.collection.container.content.className,collectionLayout:"",collectionTitle:"",dropup:!1,fade:400,popoverTitle:"",rightAlignClassName:"dt-button-right",tag:f.dom.collection.container.tag},n),h=b.tag+"."+b.containerClassName.replace(/ /g,"."),g=t.node();!1===o?i():((f=$(d.buttons('[aria-haspopup="dialog"][aria-expanded="true"]').nodes())).length&&(g.closest(h).length&&(g=f.eq(0)),i()),b.sort&&((n=$("button",o).map(function(t,n){return{text:$(n).text(),el:n}}).toArray()).sort(function(t,n){return t.text.localeCompare(n.text)}),$(o).append(n.map(function(t){return 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class="dtb-popover-close">&times;</div>').addClass("dtb-collection-closeable"),_fadeIn(e.insertAfter(g),b.fade),f=$(t.table().container()),n=e.css("position"),"container"!==b.span&&"dt-container"!==b.align||(g=g.parent(),e.css("width",f.width())),"absolute"===n?(t=$(g[0].offsetParent),f=g.position(),n=g.offset(),r=t.offset(),s=t.position(),a=window.getComputedStyle(t[0]),r.height=t.outerHeight(),r.width=t.width()+parseFloat(a.paddingLeft),r.right=r.left+r.width,r.bottom=r.top+r.height,r=f.top+g.outerHeight(),l=f.left,e.css({top:r,left:l}),a=window.getComputedStyle(e[0]),(u=e.offset()).height=e.outerHeight(),u.width=e.outerWidth(),u.right=u.left+u.width,u.bottom=u.top+u.height,u.marginTop=parseFloat(a.marginTop),u.marginBottom=parseFloat(a.marginBottom),b.dropup&&(r=f.top-u.height-u.marginTop-u.marginBottom),"button-right"!==b.align&&!e.hasClass(b.rightAlignClassName)||(l=f.left-u.width+g.outerWidth()),"dt-container"!==b.align&&"container"!==b.align||l<f.left&&(l=-f.left),s.left+l+u.width>$(window).width()&&(l=$(window).width()-u.width-s.left),n.left+l<0&&(l=-n.left),s.top+r+u.height>$(window).height()+$(window).scrollTop()&&(r=f.top-u.height-u.marginTop-u.marginBottom),t.offset().top+r<$(window).scrollTop()&&(r=f.top+g.outerHeight()),e.css({top:r,left:l})):((c=function(){var t=$(window).height()/2,n=e.height()/2;e.css("marginTop",-1*(n=t<n?t:n))})(),$(window).on("resize.dtb-collection",function(){c()})),b.background&&Buttons.background(!0,b.backgroundClassName,b.fade,b.backgroundHost||g),$("div.dt-button-background").on("click.dtb-collection",function(){}),b.autoClose&&setTimeout(function(){d.on("buttons-action.b-internal",function(t,n,e,o){o[0]!==g[0]&&i()})},0),$(e).trigger("buttons-popover.dt"),d.on("destroy",i),setTimeout(function(){p=!1,$("body").on("click.dtb-collection",function(t){var n,e;!p&&(n=$.fn.addBack?"addBack":"andSelf",e=$(t.target).parent()[0],!$(t.target).parents()[n]().filter(o).length&&!$(e).hasClass("dt-buttons")||$(t.target).hasClass("dt-button-background"))&&i()}).on("keyup.dtb-collection",function(t){27===t.keyCode&&i()}).on("keydown.dtb-collection",function(t){var n=$("a, button",o),e=document.activeElement;9===t.keyCode&&(-1===n.index(e)?(n.first().focus(),t.preventDefault()):t.shiftKey?e===n[0]&&(n.last().focus(),t.preventDefault()):e===n.last()[0]&&(n.first().focus(),t.preventDefault()))})},0))}}),Buttons.background=function(t,n,e,o){void 0===e&&(e=400),o=o||document.body,t?_fadeIn($("<div/>").addClass(n).css("display","none").insertAfter(o),e):_fadeOut($("div."+n),e,function(){$(this).removeClass(n).remove()})},Buttons.instanceSelector=function(t,s){var a,r,l;return null==t?$.map(s,function(t){return t.inst}):(a=[],r=$.map(s,function(t){return t.name}),(l=function(t){var n;if(Array.isArray(t))for(var e=0,o=t.length;e<o;e++)l(t[e]);else if("string"==typeof t)-1!==t.indexOf(",")?l(t.split(",")):-1!==(n=$.inArray(t.trim(),r))&&a.push(s[n].inst);else if("number"==typeof t)a.push(s[t].inst);else if("object"==typeof t&&t.nodeName)for(var i=0;i<s.length;i++)s[i].inst.dom.container[0]===t&&a.push(s[i].inst);else"object"==typeof t&&a.push(t)})(t),a)},Buttons.buttonSelector=function(t,n){function u(t,n){var e=[],o=(d(e,n.s.buttons),$.map(e,function(t){return t.node}));if(Array.isArray(t)||t instanceof $)for(s=0,a=t.length;s<a;s++)u(t[s],n);else if(null==t||"*"===t)for(s=0,a=e.length;s<a;s++)c.push({inst:n,node:e[s].node});else if("number"==typeof t)n.s.buttons[t]&&c.push({inst:n,node:n.s.buttons[t].node});else if("string"==typeof t)if(-1!==t.indexOf(","))for(var i=t.split(","),s=0,a=i.length;s<a;s++)u(i[s].trim(),n);else if(t.match(/^\d+(\-\d+)*$/)){var r=$.map(e,function(t){return t.idx});c.push({inst:n,node:e[$.inArray(t,r)].node})}else if(-1!==t.indexOf(":name")){var l=t.replace(":name","");for(s=0,a=e.length;s<a;s++)e[s].name===l&&c.push({inst:n,node:e[s].node})}else $(o).filter(t).each(function(){c.push({inst:n,node:this})});else"object"==typeof t&&t.nodeName&&-1!==(r=$.inArray(t,o))&&c.push({inst:n,node:o[r]})}for(var c=[],d=function(t,n,e){for(var o,i,s=0,a=n.length;s<a;s++)(o=n[s])&&(t.push({node:o.node,name:o.conf.name,idx:i=void 0!==e?e+s:s+""}),o.buttons)&&d(t,o.buttons,i+"-")},e=0,o=t.length;e<o;e++){var i=t[e];u(n,i)}return c},Buttons.stripData=function(t,n){return t="string"==typeof t&&(t=Buttons.stripHtmlScript(t),t=Buttons.stripHtmlComments(t),n&&!n.stripHtml||(t=DataTable.util.stripHtml(t)),n&&!n.trim||(t=t.trim()),n&&!n.stripNewlines||(t=t.replace(/\n/g," ")),!n||n.decodeEntities)?_entityDecoder?_entityDecoder(t):(_exportTextarea.innerHTML=t,_exportTextarea.value):t},Buttons.entityDecoder=function(t){_entityDecoder=t},Buttons.stripHtmlComments=function(t){for(var n;(t=(n=t).replace(/(<!--.*?--!?>)|(<!--[\S\s]+?--!?>)|(<!--[\S\s]*?$)/g,""))!==n;);return t},Buttons.stripHtmlScript=function(t){for(var n;(t=(n=t).replace(/<script\b[^<]*(?:(?!<\/script[^>]*>)<[^<]*)*<\/script[^>]*>/gi,""))!==n;);return t},Buttons.defaults={buttons:["copy","excel","csv","pdf","print"],name:"main",tabIndex:0,dom:{container:{tag:"div",className:"dt-buttons"},collection:{action:{dropHtml:'<span class="dt-button-down-arrow">&#x25BC;</span>'},container:{className:"dt-button-collection",content:{className:"",tag:"div"},tag:"div"}},button:{tag:"button",className:"dt-button",active:"dt-button-active",disabled:"disabled",spacer:{className:"dt-button-spacer",tag:"span"},liner:{tag:"span",className:""}},split:{action:{className:"dt-button-split-drop-button dt-button",tag:"button"},dropdown:{align:"split-right",className:"dt-button-split-drop",dropHtml:'<span class="dt-button-down-arrow">&#x25BC;</span>',splitAlignClass:"dt-button-split-left",tag:"button"},wrapper:{className:"dt-button-split",tag:"div"}}}},Buttons.version="3.1.2",$.extend(_dtButtons,{collection:{text:function(t){return t.i18n("buttons.collection","Collection")},className:"buttons-collection",closeButton:!1,init:function(t,n){n.attr("aria-expanded",!1)},action:function(t,n,e,o){o._collection.parents("body").length?this.popover(!1,o):this.popover(o._collection,o),"keypress"===t.type&&$("a, button",o._collection).eq(0).focus()},attr:{"aria-haspopup":"dialog"}},split:{text:function(t){return t.i18n("buttons.split","Split")},className:"buttons-split",closeButton:!1,init:function(t,n){return n.attr("aria-expanded",!1)},action:function(t,n,e,o){this.popover(o._collection,o)},attr:{"aria-haspopup":"dialog"}},copy:function(){if(_dtButtons.copyHtml5)return"copyHtml5"},csv:function(t,n){if(_dtButtons.csvHtml5&&_dtButtons.csvHtml5.available(t,n))return"csvHtml5"},excel:function(t,n){if(_dtButtons.excelHtml5&&_dtButtons.excelHtml5.available(t,n))return"excelHtml5"},pdf:function(t,n){if(_dtButtons.pdfHtml5&&_dtButtons.pdfHtml5.available(t,n))return"pdfHtml5"},pageLength:function(t){var n=t.settings()[0].aLengthMenu,e=[],o=[];if(Array.isArray(n[0]))e=n[0],o=n[1];else for(var i=0;i<n.length;i++){var s=n[i];$.isPlainObject(s)?(e.push(s.value),o.push(s.label)):(e.push(s),o.push(s))}return{extend:"collection",text:function(t){return t.i18n("buttons.pageLength",{"-1":"Show all rows",_:"Show %d rows"},t.page.len())},className:"buttons-page-length",autoClose:!0,buttons:$.map(e,function(s,t){return{text:o[t],className:"button-page-length",action:function(t,n){n.page.len(s).draw()},init:function(t,n,e){function o(){i.active(t.page.len()===s)}var i=this;t.on("length.dt"+e.namespace,o),o()},destroy:function(t,n,e){t.off("length.dt"+e.namespace)}}}),init:function(t,n,e){var o=this;t.on("length.dt"+e.namespace,function(){o.text(e.text)})},destroy:function(t,n,e){t.off("length.dt"+e.namespace)}}},spacer:{style:"empty",spacer:!0,text:function(t){return t.i18n("buttons.spacer","")}}}),DataTable.Api.register("buttons()",function(n,e){void 0===e&&(e=n,n=void 0),this.selector.buttonGroup=n;var t=this.iterator(!0,"table",function(t){if(t._buttons)return Buttons.buttonSelector(Buttons.instanceSelector(n,t._buttons),e)},!0);return t._groupSelector=n,t}),DataTable.Api.register("button()",function(t,n){t=this.buttons(t,n);return 1<t.length&&t.splice(1,t.length),t}),DataTable.Api.registerPlural("buttons().active()","button().active()",function(n){return void 0===n?this.map(function(t){return t.inst.active(t.node)}):this.each(function(t){t.inst.active(t.node,n)})}),DataTable.Api.registerPlural("buttons().action()","button().action()",function(n){return void 0===n?this.map(function(t){return t.inst.action(t.node)}):this.each(function(t){t.inst.action(t.node,n)})}),DataTable.Api.registerPlural("buttons().collectionRebuild()","button().collectionRebuild()",function(e){return this.each(function(t){for(var n=0;n<e.length;n++)"object"==typeof e[n]&&(e[n].parentConf=t);t.inst.collectionRebuild(t.node,e)})}),DataTable.Api.register(["buttons().enable()","button().enable()"],function(n){return this.each(function(t){t.inst.enable(t.node,n)})}),DataTable.Api.register(["buttons().disable()","button().disable()"],function(){return this.each(function(t){t.inst.disable(t.node)})}),DataTable.Api.register("button().index()",function(){var n=null;return this.each(function(t){t=t.inst.index(t.node);null!==t&&(n=t)}),n}),DataTable.Api.registerPlural("buttons().nodes()","button().node()",function(){var n=$();return $(this.each(function(t){n=n.add(t.inst.node(t.node))})),n}),DataTable.Api.registerPlural("buttons().processing()","button().processing()",function(n){return void 0===n?this.map(function(t){return t.inst.processing(t.node)}):this.each(function(t){t.inst.processing(t.node,n)})}),DataTable.Api.registerPlural("buttons().text()","button().text()",function(n){return void 0===n?this.map(function(t){return t.inst.text(t.node)}):this.each(function(t){t.inst.text(t.node,n)})}),DataTable.Api.registerPlural("buttons().trigger()","button().trigger()",function(){return this.each(function(t){t.inst.node(t.node).trigger("click")})}),DataTable.Api.register("button().popover()",function(n,e){return this.map(function(t){return t.inst._popover(n,this.button(this[0].node),e)})}),DataTable.Api.register("buttons().containers()",function(){var i=$(),s=this._groupSelector;return this.iterator(!0,"table",function(t){if(t._buttons)for(var n=Buttons.instanceSelector(s,t._buttons),e=0,o=n.length;e<o;e++)i=i.add(n[e].container())}),i}),DataTable.Api.register("buttons().container()",function(){return this.containers().eq(0)}),DataTable.Api.register("button().add()",function(t,n,e){var o=this.context;return o.length&&(o=Buttons.instanceSelector(this._groupSelector,o[0]._buttons)).length&&o[0].add(n,t,e),this.button(this._groupSelector,t)}),DataTable.Api.register("buttons().destroy()",function(){return this.pluck("inst").unique().each(function(t){t.destroy()}),this}),DataTable.Api.registerPlural("buttons().remove()","buttons().remove()",function(){return this.each(function(t){t.inst.remove(t.node)}),this}),DataTable.Api.register("buttons.info()",function(t,n,e){var o=this;return!1===t?(this.off("destroy.btn-info"),_fadeOut($("#datatables_buttons_info"),400,function(){$(this).remove()}),clearTimeout(_infoTimer),_infoTimer=null):(_infoTimer&&clearTimeout(_infoTimer),$("#datatables_buttons_info").length&&$("#datatables_buttons_info").remove(),t=t?"<h2>"+t+"</h2>":"",_fadeIn($('<div id="datatables_buttons_info" class="dt-button-info"/>').html(t).append($("<div/>")["string"==typeof n?"html":"append"](n)).css("display","none").appendTo("body")),void 0!==e&&0!==e&&(_infoTimer=setTimeout(function(){o.buttons.info(!1)},e)),this.on("destroy.btn-info",function(){o.buttons.info(!1)})),this}),DataTable.Api.register("buttons.exportData()",function(t){if(this.context.length)return _exportData(new DataTable.Api(this.context[0]),t)}),DataTable.Api.register("buttons.exportInfo()",function(t){return{filename:_filename(t=t||{},this),title:_title(t,this),messageTop:_message(this,t,t.message||t.messageTop,"top"),messageBottom:_message(this,t,t.messageBottom,"bottom")}}),function(t,n){var e;return null==(e="function"==typeof(e="*"===t.filename&&"*"!==t.title&&void 0!==t.title&&null!==t.title&&""!==t.title?t.title:t.filename)?e(t,n):e)?null:(e=(e=-1!==e.indexOf("*")?e.replace(/\*/g,$("head > title").text()).trim():e).replace(/[^a-zA-Z0-9_\u00A1-\uFFFF\.,\-_ !\(\)]/g,""))+(_stringOrFunction(t.extension,t,n)||"")}),_stringOrFunction=function(t,n,e){return null==t?null:"function"==typeof t?t(n,e):t},_title=function(t,n){t=_stringOrFunction(t.title,t,n);return null===t?null:-1!==t.indexOf("*")?t.replace(/\*/g,$("head > title").text()||"Exported data"):t},_message=function(t,n,e,o){e=_stringOrFunction(e,n,t);return null===e?null:(n=$("caption",t.table().container()).eq(0),"*"===e?n.css("caption-side")!==o?null:n.length?n.text():"":e)},_exportTextarea=$("<textarea/>")[0],_exportData=function(i,t){for(var s=$.extend(!0,{},{rows:null,columns:"",modifier:{search:"applied",order:"applied"},orthogonal:"display",stripHtml:!0,stripNewlines:!0,decodeEntities:!0,trim:!0,format:{header:function(t){return Buttons.stripData(t,s)},footer:function(t){return Buttons.stripData(t,s)},body:function(t){return Buttons.stripData(t,s)}},customizeData:null,customizeZip:null},t),t=i.columns(s.columns).indexes().map(function(t){var n=i.column(t);return s.format.header(n.title(),t,n.header())}).toArray(),n=i.table().footer()?i.columns(s.columns).indexes().map(function(t){var n,e=i.column(t).footer(),o="";return e&&(o=((n=$(".dt-column-title",e)).length?n:$(e)).html()),s.format.footer(o,t,e)}).toArray():null,e=$.extend({},s.modifier),o=(i.select&&"function"==typeof i.select.info&&void 0===e.selected&&i.rows(s.rows,$.extend({selected:!0},e)).any()&&$.extend(e,{selected:!0}),i.rows(s.rows,e).indexes().toArray()),o=i.cells(o,s.columns,{order:e.order}),a=o.render(s.orthogonal).toArray(),r=o.nodes().toArray(),l=o.indexes().toArray(),u=i.columns(s.columns).count(),c=[],d=0,f=0,p=0<u?a.length/u:0;f<p;f++){for(var b=[u],h=0;h<u;h++)b[h]=s.format.body(a[d],l[d].row,l[d].column,r[d]),d++;c[f]=b}e={header:t,headerStructure:_headerFormatter(s.format.header,i.table().header.structure(s.columns)),footer:n,footerStructure:_headerFormatter(s.format.footer,i.table().footer.structure(s.columns)),body:c};return s.customizeData&&s.customizeData(e),e};function _headerFormatter(t,n){for(var e=0;e<n.length;e++)for(var o=0;o<n[e].length;o++){var i=n[e][o];i&&(i.title=t(i.title,o,i.cell))}return n}function _init(t,n){t=new DataTable.Api(t),n=n||t.init().buttons||DataTable.defaults.buttons;return new Buttons(t,n).container()}$.fn.dataTable.Buttons=Buttons,$.fn.DataTable.Buttons=Buttons,$(document).on("init.dt plugin-init.dt",function(t,n){"dt"===t.namespace&&(t=n.oInit.buttons||DataTable.defaults.buttons)&&!n._buttons&&new Buttons(n,t).container()}),DataTable.ext.feature.push({fnInit:_init,cFeature:"B"}),DataTable.feature&&DataTable.feature.register("buttons",_init);export default DataTable;
\ No newline at end of file
+import jQuery from"jquery";import DataTable from"datatables.net";let $=jQuery;var _instCounter=0,_buttonCounter=0,_dtButtons=DataTable.ext.buttons,_entityDecoder=null;function _fadeIn(t,n,e){$.fn.animate?t.stop().fadeIn(n,e):(t.css("display","block"),e&&e.call(t))}function _fadeOut(t,n,e){$.fn.animate?t.stop().fadeOut(n,e):(t.css("display","none"),e&&e.call(t))}var _infoTimer,Buttons=function(n,t){if(!DataTable.versionCheck("2"))throw"Warning: Buttons requires DataTables 2 or newer";if(!(this instanceof Buttons))return function(t){return new Buttons(t,n).container()};!0===(t=void 0===t?{}:t)&&(t={}),Array.isArray(t)&&(t={buttons:t}),this.c=$.extend(!0,{},Buttons.defaults,t),t.buttons&&(this.c.buttons=t.buttons),this.s={dt:new DataTable.Api(n),buttons:[],listenKeys:"",namespace:"dtb"+_instCounter++},this.dom={container:$("<"+this.c.dom.container.tag+"/>").addClass(this.c.dom.container.className)},this._constructor()},_filename=($.extend(Buttons.prototype,{action:function(t,n){t=this._nodeToButton(t);return void 0===n?t.conf.action:(t.conf.action=n,this)},active:function(t,n){var t=this._nodeToButton(t),e=this.c.dom.button.active,o=$(t.node);return t.inCollection&&this.c.dom.collection.button&&void 0!==this.c.dom.collection.button.active&&(e=this.c.dom.collection.button.active),void 0===n?o.hasClass(e):(o.toggleClass(e,void 0===n||n),this)},add:function(t,n,e){var o=this.s.buttons;if("string"==typeof n){for(var i=n.split("-"),s=this.s,a=0,r=i.length-1;a<r;a++)s=s.buttons[+i[a]];o=s.buttons,n=+i[i.length-1]}return this._expandButton(o,t,void 0!==t?t.split:void 0,(void 0===t||void 0===t.split||0===t.split.length)&&void 0!==s,!1,n),void 0!==e&&!0!==e||this._draw(),this},collectionRebuild:function(t,n){var e=this._nodeToButton(t);if(void 0!==n){for(var o=e.buttons.length-1;0<=o;o--)this.remove(e.buttons[o].node);for(e.conf.prefixButtons&&n.unshift.apply(n,e.conf.prefixButtons),e.conf.postfixButtons&&n.push.apply(n,e.conf.postfixButtons),o=0;o<n.length;o++){var i=n[o];this._expandButton(e.buttons,i,void 0!==i&&void 0!==i.config&&void 0!==i.config.split,!0,void 0!==i.parentConf&&void 0!==i.parentConf.split,null,i.parentConf)}}this._draw(e.collection,e.buttons)},container:function(){return this.dom.container},disable:function(t){t=this._nodeToButton(t);return $(t.node).addClass(this.c.dom.button.disabled).prop("disabled",!0),this},destroy:function(){$("body").off("keyup."+this.s.namespace);for(var t=this.s.buttons.slice(),n=0,e=t.length;n<e;n++)this.remove(t[n].node);this.dom.container.remove();var o=this.s.dt.settings()[0];for(n=0,e=o.length;n<e;n++)if(o.inst===this){o.splice(n,1);break}return this},enable:function(t,n){return!1===n?this.disable(t):(n=this._nodeToButton(t),$(n.node).removeClass(this.c.dom.button.disabled).prop("disabled",!1),this)},index:function(t,n,e){n||(n="",e=this.s.buttons);for(var o=0,i=e.length;o<i;o++){var s=e[o].buttons;if(e[o].node===t)return n+o;if(s&&s.length){s=this.index(t,o+"-",s);if(null!==s)return s}}return null},name:function(){return this.c.name},node:function(t){return t?(t=this._nodeToButton(t),$(t.node)):this.dom.container},processing:function(t,n){var e=this.s.dt,o=this._nodeToButton(t);return void 0===n?$(o.node).hasClass("processing"):($(o.node).toggleClass("processing",n),$(e.table().node()).triggerHandler("buttons-processing.dt",[n,e.button(t),e,$(t),o.conf]),this)},remove:function(t){var n=this._nodeToButton(t),e=this._nodeToHost(t),o=this.s.dt;if(n.buttons.length)for(var i=n.buttons.length-1;0<=i;i--)this.remove(n.buttons[i].node);n.conf.destroying=!0,n.conf.destroy&&n.conf.destroy.call(o.button(t),o,$(t),n.conf),this._removeKey(n.conf),$(n.node).remove();o=$.inArray(n,e);return e.splice(o,1),this},text:function(t,n){function e(t){return"function"==typeof t?t(i,s,o.conf):t}var o=this._nodeToButton(t),t=o.textNode,i=this.s.dt,s=$(o.node);return void 0===n?e(o.conf.text):(o.conf.text=n,t.html(e(n)),this)},_constructor:function(){var e=this,t=this.s.dt,o=t.settings()[0],n=this.c.buttons;o._buttons||(o._buttons=[]),o._buttons.push({inst:this,name:this.c.name});for(var i=0,s=n.length;i<s;i++)this.add(n[i]);t.on("destroy",function(t,n){n===o&&e.destroy()}),$("body").on("keyup."+this.s.namespace,function(t){var n;document.activeElement&&document.activeElement!==document.body||(n=String.fromCharCode(t.keyCode).toLowerCase(),-1!==e.s.listenKeys.toLowerCase().indexOf(n)&&e._keypress(n,t))})},_addKey:function(t){t.key&&(this.s.listenKeys+=($.isPlainObject(t.key)?t.key:t).key)},_draw:function(t,n){t||(t=this.dom.container,n=this.s.buttons),t.children().detach();for(var e=0,o=n.length;e<o;e++)t.append(n[e].inserter),t.append(" "),n[e].buttons&&n[e].buttons.length&&this._draw(n[e].collection,n[e].buttons)},_expandButton:function(t,n,e,o,i,s,a){for(var r,l=this.s.dt,u=this.c.dom.collection,c=Array.isArray(n)?n:[n],d=0,f=(c=void 0===n?Array.isArray(e)?e:[e]:c).length;d<f;d++){var p=this._resolveExtends(c[d]);if(p)if(r=!(!p.config||!p.config.split),Array.isArray(p))this._expandButton(t,p,void 0!==b&&void 0!==b.conf?b.conf.split:void 0,o,void 0!==a&&void 0!==a.split,s,a);else{var b=this._buildButton(p,o,void 0!==p.split||void 0!==p.config&&void 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a=t(_dtButtons[e.extend]);if(Array.isArray(a))return a;if(!a)return!1;var r=a.className;void 0!==e.config&&void 0!==a.config&&(e.config=$.extend({},a.config,e.config)),e=$.extend({},a,e),r&&e.className!==r&&(e.className=r+" "+e.className),e.extend=a.extend}var l=e.postfixButtons;if(l)for(e.buttons||(e.buttons=[]),n=0,o=l.length;n<o;n++)e.buttons.push(l[n]);var u=e.prefixButtons;if(u)for(e.buttons||(e.buttons=[]),n=0,o=u.length;n<o;n++)e.buttons.splice(n,0,u[n]);return e},_popover:function(o,t,n){function i(){p=!0,_fadeOut($(h),b.fade,function(){$(this).detach()}),$(d.buttons('[aria-haspopup="dialog"][aria-expanded="true"]').nodes()).attr("aria-expanded","false"),$("div.dt-button-background").off("click.dtb-collection"),Buttons.background(!1,b.backgroundClassName,b.fade,g),$(window).off("resize.resize.dtb-collection"),$("body").off(".dtb-collection"),d.off("buttons-action.b-internal"),d.off("destroy")}var e,s,a,r,l,u,c,d=t,f=this.c,p=!1,b=$.extend({align:"button-left",autoClose:!1,background:!0,backgroundClassName:"dt-button-background",closeButton:!0,containerClassName:f.dom.collection.container.className,contentClassName:f.dom.collection.container.content.className,collectionLayout:"",collectionTitle:"",dropup:!1,fade:400,popoverTitle:"",rightAlignClassName:"dt-button-right",tag:f.dom.collection.container.tag},n),h=b.tag+"."+b.containerClassName.replace(/ /g,"."),g=t.node();!1===o?i():((f=$(d.buttons('[aria-haspopup="dialog"][aria-expanded="true"]').nodes())).length&&(g.closest(h).length&&(g=f.eq(0)),i()),b.sort&&((n=$("button",o).map(function(t,n){return{text:$(n).text(),el:n}}).toArray()).sort(function(t,n){return t.text.localeCompare(n.text)}),$(o).append(n.map(function(t){return 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t=$(window).height()/2,n=e.height()/2;e.css("marginTop",-1*(n=t<n?t:n))})(),$(window).on("resize.dtb-collection",function(){c()})),b.background&&Buttons.background(!0,b.backgroundClassName,b.fade,b.backgroundHost||g),$("div.dt-button-background").on("click.dtb-collection",function(){}),b.autoClose&&setTimeout(function(){d.on("buttons-action.b-internal",function(t,n,e,o){o[0]!==g[0]&&i()})},0),$(e).trigger("buttons-popover.dt"),d.on("destroy",i),setTimeout(function(){p=!1,$("body").on("click.dtb-collection",function(t){var n,e;!p&&(n=$.fn.addBack?"addBack":"andSelf",e=$(t.target).parent()[0],!$(t.target).parents()[n]().filter(o).length&&!$(e).hasClass("dt-buttons")||$(t.target).hasClass("dt-button-background"))&&i()}).on("keyup.dtb-collection",function(t){27===t.keyCode&&i()}).on("keydown.dtb-collection",function(t){var n=$("a, 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t&&a.push(t)})(t),a)},Buttons.buttonSelector=function(t,n){function u(t,n){var e=[],o=(d(e,n.s.buttons),$.map(e,function(t){return t.node}));if(Array.isArray(t)||t instanceof $)for(s=0,a=t.length;s<a;s++)u(t[s],n);else if(null==t||"*"===t)for(s=0,a=e.length;s<a;s++)c.push({inst:n,node:e[s].node});else if("number"==typeof t)n.s.buttons[t]&&c.push({inst:n,node:n.s.buttons[t].node});else if("string"==typeof t)if(-1!==t.indexOf(","))for(var i=t.split(","),s=0,a=i.length;s<a;s++)u(i[s].trim(),n);else if(t.match(/^\d+(\-\d+)*$/)){var r=$.map(e,function(t){return t.idx});c.push({inst:n,node:e[$.inArray(t,r)].node})}else if(-1!==t.indexOf(":name")){var l=t.replace(":name","");for(s=0,a=e.length;s<a;s++)e[s].name===l&&c.push({inst:n,node:e[s].node})}else $(o).filter(t).each(function(){c.push({inst:n,node:this})});else"object"==typeof t&&t.nodeName&&-1!==(r=$.inArray(t,o))&&c.push({inst:n,node:o[r]})}for(var c=[],d=function(t,n,e){for(var o,i,s=0,a=n.length;s<a;s++)(o=n[s])&&(t.push({node:o.node,name:o.conf.name,idx:i=void 0!==e?e+s:s+""}),o.buttons)&&d(t,o.buttons,i+"-")},e=0,o=t.length;e<o;e++){var i=t[e];u(n,i)}return c},Buttons.stripData=function(t,n){return t="string"==typeof t&&(t=Buttons.stripHtmlScript(t),t=Buttons.stripHtmlComments(t),n&&!n.stripHtml||(t=DataTable.util.stripHtml(t)),n&&!n.trim||(t=t.trim()),n&&!n.stripNewlines||(t=t.replace(/\n/g," ")),!n||n.decodeEntities)?_entityDecoder?_entityDecoder(t):(_exportTextarea.innerHTML=t,_exportTextarea.value):t},Buttons.entityDecoder=function(t){_entityDecoder=t},Buttons.stripHtmlComments=function(t){for(var n;(t=(n=t).replace(/(<!--.*?--!?>)|(<!--[\S\s]+?--!?>)|(<!--[\S\s]*?$)/g,""))!==n;);return t},Buttons.stripHtmlScript=function(t){for(var n;(t=(n=t).replace(/<script\b[^<]*(?:(?!<\/script[^>]*>)<[^<]*)*<\/script[^>]*>/gi,""))!==n;);return t},Buttons.defaults={buttons:["copy","excel","csv","pdf","print"],name:"main",tabIndex:0,dom:{container:{tag:"div",className:"dt-buttons"},collection:{action:{dropHtml:'<span class="dt-button-down-arrow">&#x25BC;</span>'},container:{className:"dt-button-collection",content:{className:"",tag:"div"},tag:"div"}},button:{tag:"button",className:"dt-button",active:"dt-button-active",disabled:"disabled",spacer:{className:"dt-button-spacer",tag:"span"},liner:{tag:"span",className:""}},split:{action:{className:"dt-button-split-drop-button dt-button",tag:"button"},dropdown:{align:"split-right",className:"dt-button-split-drop",dropHtml:'<span class="dt-button-down-arrow">&#x25BC;</span>',splitAlignClass:"dt-button-split-left",tag:"button"},wrapper:{className:"dt-button-split",tag:"div"}}}},Buttons.version="3.1.2",$.extend(_dtButtons,{collection:{text:function(t){return t.i18n("buttons.collection","Collection")},className:"buttons-collection",closeButton:!1,init:function(t,n){n.attr("aria-expanded",!1)},action:function(t,n,e,o){o._collection.parents("body").length?this.popover(!1,o):this.popover(o._collection,o),"keypress"===t.type&&$("a, button",o._collection).eq(0).focus()},attr:{"aria-haspopup":"dialog"}},split:{text:function(t){return t.i18n("buttons.split","Split")},className:"buttons-split",closeButton:!1,init:function(t,n){return n.attr("aria-expanded",!1)},action:function(t,n,e,o){this.popover(o._collection,o)},attr:{"aria-haspopup":"dialog"}},copy:function(){if(_dtButtons.copyHtml5)return"copyHtml5"},csv:function(t,n){if(_dtButtons.csvHtml5&&_dtButtons.csvHtml5.available(t,n))return"csvHtml5"},excel:function(t,n){if(_dtButtons.excelHtml5&&_dtButtons.excelHtml5.available(t,n))return"excelHtml5"},pdf:function(t,n){if(_dtButtons.pdfHtml5&&_dtButtons.pdfHtml5.available(t,n))return"pdfHtml5"},pageLength:function(t){var n=t.settings()[0].aLengthMenu,e=[],o=[];if(Array.isArray(n[0]))e=n[0],o=n[1];else for(var i=0;i<n.length;i++){var s=n[i];$.isPlainObject(s)?(e.push(s.value),o.push(s.label)):(e.push(s),o.push(s))}return{extend:"collection",text:function(t){return t.i18n("buttons.pageLength",{"-1":"Show all rows",_:"Show %d rows"},t.page.len())},className:"buttons-page-length",autoClose:!0,buttons:$.map(e,function(s,t){return{text:o[t],className:"button-page-length",action:function(t,n){n.page.len(s).draw()},init:function(t,n,e){function o(){i.active(t.page.len()===s)}var i=this;t.on("length.dt"+e.namespace,o),o()},destroy:function(t,n,e){t.off("length.dt"+e.namespace)}}}),init:function(t,n,e){var o=this;t.on("length.dt"+e.namespace,function(){o.text(e.text)})},destroy:function(t,n,e){t.off("length.dt"+e.namespace)}}},spacer:{style:"empty",spacer:!0,text:function(t){return t.i18n("buttons.spacer","")}}}),DataTable.Api.register("buttons()",function(n,e){void 0===e&&(e=n,n=void 0),this.selector.buttonGroup=n;var t=this.iterator(!0,"table",function(t){if(t._buttons)return Buttons.buttonSelector(Buttons.instanceSelector(n,t._buttons),e)},!0);return t._groupSelector=n,t}),DataTable.Api.register("button()",function(t,n){t=this.buttons(t,n);return 1<t.length&&t.splice(1,t.length),t}),DataTable.Api.registerPlural("buttons().active()","button().active()",function(n){return void 0===n?this.map(function(t){return t.inst.active(t.node)}):this.each(function(t){t.inst.active(t.node,n)})}),DataTable.Api.registerPlural("buttons().action()","button().action()",function(n){return void 0===n?this.map(function(t){return t.inst.action(t.node)}):this.each(function(t){t.inst.action(t.node,n)})}),DataTable.Api.registerPlural("buttons().collectionRebuild()","button().collectionRebuild()",function(e){return this.each(function(t){for(var n=0;n<e.length;n++)"object"==typeof e[n]&&(e[n].parentConf=t);t.inst.collectionRebuild(t.node,e)})}),DataTable.Api.register(["buttons().enable()","button().enable()"],function(n){return this.each(function(t){t.inst.enable(t.node,n)})}),DataTable.Api.register(["buttons().disable()","button().disable()"],function(){return this.each(function(t){t.inst.disable(t.node)})}),DataTable.Api.register("button().index()",function(){var n=null;return this.each(function(t){t=t.inst.index(t.node);null!==t&&(n=t)}),n}),DataTable.Api.registerPlural("buttons().nodes()","button().node()",function(){var n=$();return $(this.each(function(t){n=n.add(t.inst.node(t.node))})),n}),DataTable.Api.registerPlural("buttons().processing()","button().processing()",function(n){return void 0===n?this.map(function(t){return t.inst.processing(t.node)}):this.each(function(t){t.inst.processing(t.node,n)})}),DataTable.Api.registerPlural("buttons().text()","button().text()",function(n){return void 0===n?this.map(function(t){return t.inst.text(t.node)}):this.each(function(t){t.inst.text(t.node,n)})}),DataTable.Api.registerPlural("buttons().trigger()","button().trigger()",function(){return this.each(function(t){t.inst.node(t.node).trigger("click")})}),DataTable.Api.register("button().popover()",function(n,e){return this.map(function(t){return t.inst._popover(n,this.button(this[0].node),e)})}),DataTable.Api.register("buttons().containers()",function(){var i=$(),s=this._groupSelector;return this.iterator(!0,"table",function(t){if(t._buttons)for(var n=Buttons.instanceSelector(s,t._buttons),e=0,o=n.length;e<o;e++)i=i.add(n[e].container())}),i}),DataTable.Api.register("buttons().container()",function(){return this.containers().eq(0)}),DataTable.Api.register("button().add()",function(t,n,e){var o=this.context;return o.length&&(o=Buttons.instanceSelector(this._groupSelector,o[0]._buttons)).length&&o[0].add(n,t,e),this.button(this._groupSelector,t)}),DataTable.Api.register("buttons().destroy()",function(){return this.pluck("inst").unique().each(function(t){t.destroy()}),this}),DataTable.Api.registerPlural("buttons().remove()","buttons().remove()",function(){return this.each(function(t){t.inst.remove(t.node)}),this}),DataTable.Api.register("buttons.info()",function(t,n,e){var o=this;return!1===t?(this.off("destroy.btn-info"),_fadeOut($("#datatables_buttons_info"),400,function(){$(this).remove()}),clearTimeout(_infoTimer),_infoTimer=null):(_infoTimer&&clearTimeout(_infoTimer),$("#datatables_buttons_info").length&&$("#datatables_buttons_info").remove(),t=t?"<h2>"+t+"</h2>":"",_fadeIn($('<div id="datatables_buttons_info" class="dt-button-info"/>').html(t).append($("<div/>")["string"==typeof n?"html":"append"](n)).css("display","none").appendTo("body")),void 0!==e&&0!==e&&(_infoTimer=setTimeout(function(){o.buttons.info(!1)},e)),this.on("destroy.btn-info",function(){o.buttons.info(!1)})),this}),DataTable.Api.register("buttons.exportData()",function(t){if(this.context.length)return _exportData(new DataTable.Api(this.context[0]),t)}),DataTable.Api.register("buttons.exportInfo()",function(t){return{filename:_filename(t=t||{},this),title:_title(t,this),messageTop:_message(this,t,t.message||t.messageTop,"top"),messageBottom:_message(this,t,t.messageBottom,"bottom")}}),function(t,n){var e;return null==(e="function"==typeof(e="*"===t.filename&&"*"!==t.title&&void 0!==t.title&&null!==t.title&&""!==t.title?t.title:t.filename)?e(t,n):e)?null:(e=(e=-1!==e.indexOf("*")?e.replace(/\*/g,$("head > title").text()).trim():e).replace(/[^a-zA-Z0-9_\u00A1-\uFFFF\.,\-_ !\(\)]/g,""))+(_stringOrFunction(t.extension,t,n)||"")}),_stringOrFunction=function(t,n,e){return null==t?null:"function"==typeof t?t(n,e):t},_title=function(t,n){t=_stringOrFunction(t.title,t,n);return null===t?null:-1!==t.indexOf("*")?t.replace(/\*/g,$("head > title").text()||"Exported data"):t},_message=function(t,n,e,o){e=_stringOrFunction(e,n,t);return null===e?null:(n=$("caption",t.table().container()).eq(0),"*"===e?n.css("caption-side")!==o?null:n.length?n.text():"":e)},_exportTextarea=$("<textarea/>")[0],_exportData=function(i,t){for(var s=$.extend(!0,{},{rows:null,columns:"",modifier:{search:"applied",order:"applied"},orthogonal:"display",stripHtml:!0,stripNewlines:!0,decodeEntities:!0,trim:!0,format:{header:function(t){return Buttons.stripData(t,s)},footer:function(t){return Buttons.stripData(t,s)},body:function(t){return Buttons.stripData(t,s)}},customizeData:null,customizeZip:null},t),t=i.columns(s.columns).indexes().map(function(t){var n=i.column(t);return s.format.header(n.title(),t,n.header())}).toArray(),n=i.table().footer()?i.columns(s.columns).indexes().map(function(t){var n,e=i.column(t).footer(),o="";return e&&(o=((n=$(".dt-column-title",e)).length?n:$(e)).html()),s.format.footer(o,t,e)}).toArray():null,e=$.extend({},s.modifier),o=(i.select&&"function"==typeof i.select.info&&void 0===e.selected&&i.rows(s.rows,$.extend({selected:!0},e)).any()&&$.extend(e,{selected:!0}),i.rows(s.rows,e).indexes().toArray()),o=i.cells(o,s.columns,{order:e.order}),a=o.render(s.orthogonal).toArray(),r=o.nodes().toArray(),l=o.indexes().toArray(),u=i.columns(s.columns).count(),c=[],d=0,f=0,p=0<u?a.length/u:0;f<p;f++){for(var b=[u],h=0;h<u;h++)b[h]=s.format.body(a[d],l[d].row,l[d].column,r[d]),d++;c[f]=b}e={header:t,headerStructure:_headerFormatter(s.format.header,i.table().header.structure(s.columns)),footer:n,footerStructure:_headerFormatter(s.format.footer,i.table().footer.structure(s.columns)),body:c};return s.customizeData&&s.customizeData(e),e};function _headerFormatter(t,n){for(var e=0;e<n.length;e++)for(var o=0;o<n[e].length;o++){var i=n[e][o];i&&(i.title=t(i.title,o,i.cell))}return n}function _init(t,n){t=new DataTable.Api(t),n=n||t.init().buttons||DataTable.defaults.buttons;return new Buttons(t,n).container()}$.fn.dataTable.Buttons=Buttons,$.fn.DataTable.Buttons=Buttons,$(document).on("init.dt plugin-init.dt",function(t,n){"dt"===t.namespace&&(t=n.oInit.buttons||DataTable.defaults.buttons)&&!n._buttons&&new Buttons(n,t).container()}),DataTable.ext.feature.push({fnInit:_init,cFeature:"B"}),DataTable.feature&&DataTable.feature.register("buttons",_init);export default DataTable;
\ No newline at end of file
diff --git a/js/dataTables.buttons.mjs b/js/dataTables.buttons.mjs
index b0a9109..120caa2 100644
--- a/js/dataTables.buttons.mjs
+++ b/js/dataTables.buttons.mjs
@@ -997,7 +997,7 @@ $.extend(Buttons.prototype, {
 		}
 
 		for (var i = 0, ien = buttons.length; i < ien; i++) {
-			if (buttons[i].node === node || $(buttons[i].node).children(node).length) {
+			if (buttons[i].node === node || $(buttons[i].node).children().eq(0).get(0) === node) {
 				return buttons[i];
 			}