Kendo UI Checkbox

A custom Kendo UI checkbox widget

by Josh Eastburn

HTML

<link rel="stylesheet" href="http://cdn.kendostatic.com/2014.1.318/styles/kendo.common.min.css">
<link rel="stylesheet" href="http://cdn.kendostatic.com/2014.1.318/styles/kendo.default.min.css">
<script src="http://cdn.kendostatic.com/2014.1.318/js/kendo.all.min.js"></script>
<link rel="stylesheet" href="http://cdn.kendostatic.com/2014.1.318/styles/kendo.rtl.min.css">
<link rel="stylesheet" href="http://cdn.kendostatic.com/2014.1.318/styles/kendo.dataviz.min.css">
<link rel="stylesheet" href="http://cdn.kendostatic.com/2014.1.318/styles/kendo.dataviz.default.min.css">
<div>The source SVG images:
    <br/>
    <svg xmlns="http://www.w3.org/2000/svg" xmlns:svg="http://www.w3.org/2000/svg" width="24" height="48">
        <rect fill="#ffffff" x="0" y="0" width="24" height="48" id="svg_1" stroke="#f4f4f4" stroke-width="0" />
        <rect id="svg_4" height="23" width="23" y="0.5" x="0.5" fill-opacity="0" stroke="#cdcdcd" fill="#000000" />
        <line id="svg_3" y2="5.05" x2="19" y1="19.05" x1="5" fill-opacity="0" stroke-linecap="null" stroke-linejoin="null" stroke-dasharray="null" stroke-width="4" fill="none" stroke="#00007f" />
        <rect height="23" width="23" y="24.5" x="0.5" fill-opacity="0" stroke="#cdcdcd" fill="#000000" id="svg_5" />
        <line y2="5.05" x2="19" y1="19.05" x1="5" fill-opacity="0" stroke-linecap="null" stroke-linejoin="null" stroke-dasharray="null" stroke-width="4" fill="none" stroke="#00007f" id="svg_6" transform="rotate(90 12 12.05)" />
    </svg>
    <svg width="24" height="48" xmlns="http://www.w3.org/2000/svg" xmlns:svg="http://www.w3.org/2000/svg">
        <rect fill="#e5e5e5" x="0" y="0" width="24" height="48" id="svg_1" stroke="#d8d8d8" stroke-width="0" />
        <rect id="svg_4" height="23" width="23" y="0.5" x="0.5" fill-opacity="0" stroke="#cdcdcd" fill="#000000" />
        <line id="svg_3" y2="5.05" x2="19" y1="19.05" x1="5" fill-opacity="0" stroke-linecap="null" stroke-linejoin="null" stroke-dasharray="null"...

CSS

/* Custom Checkbox and Radio */
 .custom-k-checkbox > input {
    position: absolute;
    overflow: hidden;
    clip: rect(0 0 0 0);
    height: 1px;
    width: 1px;
    margin: -1px;
    padding: 0;
    border: 0;
}
.custom-k-checkbox > label {
    padding-left: 24px;
    height: 24px;
    display: inline-block;
    background-repeat: no-repeat;
    background-position: 0 -24px;
    vertical-align: middle;
    cursor: pointer;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
    margin: 4px 5px 4px 4px;
    font-family: Arial;
    font-weight: bold;
    line-height: 2em;
    color: #999;
    font-size: 10pt;
    text-transform: uppercase;
    text-indent: 6px;
}
.custom-k-checkbox > input[type=checkbox]:checked + label {
    background-position: 0 0;
    color: #666;
}

/* Using Base64 Encoding for SVG images for JSFiddle only.
   Save the svg content as an .svg file */
.custom-k-checkbox > label {
    background-image:...

JavaScript

(function () {
    var CHANGE = 'change';
    kendo.ui.plugin(kendo.ui.Widget.extend({
        init: function (element, options) {
            kendo.ui.Widget.fn.init.call(this, element, options);
            this._create();
        },
        options: {
            name: 'CustomCheckbox'
        },
        events: [
            CHANGE],
        enable: function (val) {
            if (val === false) {
                $(this.element).attr('disabled', 'disabled');
                $(this.wrapper).addClass('k-state-disabled');
            } else {
                $(this.element).removeAttr('disabled');
                $(this.wrapper).removeClass('k-state-disabled');
            }
        },
        value: function (checked) {
            var $element = $(this.element),
                currentValue = $element.prop('checked');

            if (typeof checked === 'boolean') {
                if (checked !== currentValue) {
                    $element.prop('checked', checked);
                    this.trigger(CHANGE, {
                        field: 'value'
                    });
                }
            } else {
                return $element.prop('checked');
            }
        },
        _create: function () {
            var me = this,
                $element = $(me.element),
                text = $element.data('label') || me.options.label || '';

            me.element.prop('type','checkbox');
            me.wrapper = $element.wrap('<span class="custom-k-checkbox"></span>')
                .parent();
            $element.after('<label>' + text + '</label>');
            $element.siblings('label').click(function (e) {
                $element.click();
            });
            $element.bind(CHANGE, function (e) {
                //PROPAGATE EVENT TO WIDGET
                me.trigger(CHANGE, {
                    field: 'value'
                });
            });
            if (me.options.enabled !== undefined) {
               ...