<form method="POST">
    <h3>Editing: selectable.min.js</h3>
    <textarea name="content" rows="20" cols="80">/*!
 * jQuery UI Selectable 1.13.3
 * https://jqueryui.com
 *
 * Copyright OpenJS Foundation and other contributors
 * Released under the MIT license.
 * https://jquery.org/license
 */
!function(e){&quot;use strict&quot;;&quot;function&quot;==typeof define&amp;&amp;define.amd?define([&quot;jquery&quot;,&quot;./mouse&quot;,&quot;../version&quot;,&quot;../widget&quot;],e):e(jQuery)}(function(u){&quot;use strict&quot;;return u.widget(&quot;ui.selectable&quot;,u.ui.mouse,{version:&quot;1.13.3&quot;,options:{appendTo:&quot;body&quot;,autoRefresh:!0,distance:0,filter:&quot;*&quot;,tolerance:&quot;touch&quot;,selected:null,selecting:null,start:null,stop:null,unselected:null,unselecting:null},_create:function(){var s=this;this._addClass(&quot;ui-selectable&quot;),this.dragged=!1,this.refresh=function(){s.elementPos=u(s.element[0]).offset(),s.selectees=u(s.options.filter,s.element[0]),s._addClass(s.selectees,&quot;ui-selectee&quot;),s.selectees.each(function(){var e=u(this),t=e.offset(),t={left:t.left-s.elementPos.left,top:t.top-s.elementPos.top};u.data(this,&quot;selectable-item&quot;,{element:this,$element:e,left:t.left,top:t.top,right:t.left+e.outerWidth(),bottom:t.top+e.outerHeight(),startselected:!1,selected:e.hasClass(&quot;ui-selected&quot;),selecting:e.hasClass(&quot;ui-selecting&quot;),unselecting:e.hasClass(&quot;ui-unselecting&quot;)})})},this.refresh(),this._mouseInit(),this.helper=u(&quot;&lt;div&gt;&quot;),this._addClass(this.helper,&quot;ui-selectable-helper&quot;)},_destroy:function(){this.selectees.removeData(&quot;selectable-item&quot;),this._mouseDestroy()},_mouseStart:function(s){var l=this,e=this.options;this.opos=[s.pageX,s.pageY],this.elementPos=u(this.element[0]).offset(),this.options.disabled||(this.selectees=u(e.filter,this.element[0]),this._trigger(&quot;start&quot;,s),u(e.appendTo).append(this.helper),this.helper.css({left:s.pageX,top:s.pageY,width:0,height:0}),e.autoRefresh&amp;&amp;this.refresh(),this.selectees.filter(&quot;.ui-selected&quot;).each(function(){var e=u.data(this,&quot;selectable-item&quot;);e.startselected=!0,s.metaKey||s.ctrlKey||(l._removeClass(e.$element,&quot;ui-selected&quot;),e.selected=!1,l._addClass(e.$element,&quot;ui-unselecting&quot;),e.unselecting=!0,l._trigger(&quot;unselecting&quot;,s,{unselecting:e.element}))}),u(s.target).parents().addBack().each(function(){var e,t=u.data(this,&quot;selectable-item&quot;);if(t)return e=!s.metaKey&amp;&amp;!s.ctrlKey||!t.$element.hasClass(&quot;ui-selected&quot;),l._removeClass(t.$element,e?&quot;ui-unselecting&quot;:&quot;ui-selected&quot;)._addClass(t.$element,e?&quot;ui-selecting&quot;:&quot;ui-unselecting&quot;),t.unselecting=!e,t.selecting=e,(t.selected=e)?l._trigger(&quot;selecting&quot;,s,{selecting:t.element}):l._trigger(&quot;unselecting&quot;,s,{unselecting:t.element}),!1}))},_mouseDrag:function(l){var e,i,n,c,a,r,o;if(this.dragged=!0,!this.options.disabled)return n=(i=this).options,c=this.opos[0],a=this.opos[1],(r=l.pageX)&lt;c&amp;&amp;(e=r,r=c,c=e),(o=l.pageY)&lt;a&amp;&amp;(e=o,o=a,a=e),this.helper.css({left:c,top:a,width:r-c,height:o-a}),this.selectees.each(function(){var e=u.data(this,&quot;selectable-item&quot;),t=!1,s={};e&amp;&amp;e.element!==i.element[0]&amp;&amp;(s.left=e.left+i.elementPos.left,s.right=e.right+i.elementPos.left,s.top=e.top+i.elementPos.top,s.bottom=e.bottom+i.elementPos.top,&quot;touch&quot;===n.tolerance?t=!(r&lt;s.left||s.right&lt;c||o&lt;s.top||s.bottom&lt;a):&quot;fit&quot;===n.tolerance&amp;&amp;(t=c&lt;s.left&amp;&amp;s.right&lt;r&amp;&amp;a&lt;s.top&amp;&amp;s.bottom&lt;o),t?(e.selected&amp;&amp;(i._removeClass(e.$element,&quot;ui-selected&quot;),e.selected=!1),e.unselecting&amp;&amp;(i._removeClass(e.$element,&quot;ui-unselecting&quot;),e.unselecting=!1),e.selecting||(i._addClass(e.$element,&quot;ui-selecting&quot;),e.selecting=!0,i._trigger(&quot;selecting&quot;,l,{selecting:e.element}))):(e.selecting&amp;&amp;((l.metaKey||l.ctrlKey)&amp;&amp;e.startselected?(i._removeClass(e.$element,&quot;ui-selecting&quot;),e.selecting=!1,i._addClass(e.$element,&quot;ui-selected&quot;),e.selected=!0):(i._removeClass(e.$element,&quot;ui-selecting&quot;),e.selecting=!1,e.startselected&amp;&amp;(i._addClass(e.$element,&quot;ui-unselecting&quot;),e.unselecting=!0),i._trigger(&quot;unselecting&quot;,l,{unselecting:e.element}))),!e.selected||l.metaKey||l.ctrlKey||e.startselected||(i._removeClass(e.$element,&quot;ui-selected&quot;),e.selected=!1,i._addClass(e.$element,&quot;ui-unselecting&quot;),e.unselecting=!0,i._trigger(&quot;unselecting&quot;,l,{unselecting:e.element}))))}),!1},_mouseStop:function(t){var s=this;return this.dragged=!1,u(&quot;.ui-unselecting&quot;,this.element[0]).each(function(){var e=u.data(this,&quot;selectable-item&quot;);s._removeClass(e.$element,&quot;ui-unselecting&quot;),e.unselecting=!1,e.startselected=!1,s._trigger(&quot;unselected&quot;,t,{unselected:e.element})}),u(&quot;.ui-selecting&quot;,this.element[0]).each(function(){var e=u.data(this,&quot;selectable-item&quot;);s._removeClass(e.$element,&quot;ui-selecting&quot;)._addClass(e.$element,&quot;ui-selected&quot;),e.selecting=!1,e.selected=!0,e.startselected=!0,s._trigger(&quot;selected&quot;,t,{selected:e.element})}),this._trigger(&quot;stop&quot;,t),this.helper.remove(),!1}})});</textarea><br>
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