JSFiddle - React, Tailwind, and code Playground

by YangHax

HTML

<link rel="stylesheet" href="http://dev.sencha.com/deploy/ext-4.0.2a/resources/css/ext-all.css">
<html>
    <head>
        <title>ExtJS 4 Extension: Fieldset /w Dynamic Controls</title>
    </head>
    <body>
    </body>
</html>

CSS

.icon-properties { background-image: url(http://whatisextjs.com/BAHO/icons/table.png) !important;}
.x-fieldset-header-text { font-weight: bold; }
.x-fieldset {background-color: #F1F1F1;}
 /* Icons on fieldsets */
.x-fieldset-header-icon, .ext-ie .x-fieldset-header-icon {
    padding-left: 18px !important;
    background-repeat: no-repeat;
}

JavaScript

// BLOG ExtJS 4 Extension: Fieldset /w Dynamic Controls
// http://whatisextjs.com/extjs-4-extension/fieldset-w-dynamic-controls-2
//**************************//

Ext.onReady(function(){
    
    // Credit: Evan Tremboli
    Ext.form.FieldSet.override({
        initLegend: function(){
            var me = this, 
                legendItems, 
                legend = me.legend, 
                iconCls = me.iconCls,
                hasIcon = !!iconCls;
 
            // Create the legend component if needed and it hasn't been already
            if (!legend && (me.title || me.checkboxToggle || me.collapsible)) {
                legendItems = [];
 
                // Checkbox
                if (me.checkboxToggle) {
                    legendItems.push(me.createCheckboxCmp());
                }                // Toggle button
                else if (me.collapsible) {
                    legendItems.push(me.createToggleCmp());
                }
 
                // Title
                legendItems.push(me.createTitleCmp());
 
                legend = me.legend = Ext.create('Ext.container.Container', {
                    baseCls: me.baseCls + '-header' + (hasIcon ? ' ' + me.baseCls + '-header-icon' : ''),
                    autoEl: 'legend',
                    ariaRole: '',
                    ownerCt: this,
                    getElConfig: function(){
                        return {
                            tag: 'legend',
                            cls: this.baseCls + ' ' + iconCls,
                            children: [{
                                cls: Ext.baseCSSPrefix + 'clear'
                            }]
                        };
                    },
                    items: legendItems
                });
            }
 
            // Make sure legend is rendered if the fieldset is rendered
            if (legend && !legend.rendered && me.rendered) {
                me.legend.render(me.el, me.body); //insert before body element
          ...