JSFiddle - React, Tailwind, and code Playground

by trixta

HTML

<script src="http://afarkas.github.com/webshim/demos/js-webshim/minified/extras/modernizr-custom.js"></script>
<script src="http://afarkas.github.com/webshim/demos/js-webshim/minified/polyfiller.js"></script>
<p><em>First, submit the form to see the error.</em> (with the wrong values) Then, write a correct email on the first field. You'll see the red dotted line becomes green (thus is no longer ":invalid"), but there is no way to determine the field is valid again. Is there a way to monitor that change?</p>
<br />
<form action="#">
    <label>Here you write an email like example@bla.org</label>
    <div class="inputWrapper">
        <input type="email" value="wrongValue" required>
    </div>
    <div class="inputWrapper">
        <input type="text">
    </div>
    <div class="inputWrapper">
        <input type="url" value="http://right.value">
    </div>
    <input type="submit" id="submit">
</form>

CSS

input, p, label {
    font-family: 'Segoe UI', Calibri, Helvetica, sans-serif;
}

em {
    text-transform: uppercase;
    font-weight: bold;
    text-shadow: 0 0 1px rgba(20,20,20,0.8);
}

input {
    background: rgba(200,250,220);
    border: 5px dotted #DDEEDD;
    width: 97.6%;
    padding: 0.2em;
}

input[type=submit] {
    width: 20%;
    margin: 1em auto;
    border: 1px solid black;
    background: #9A9;
    border-radius: 5px;
}


.inputWrapper {
    border: 4px solid #8EAF8A;
    margin: 0.5em;
    font-size: 0.8em;
    border-radius: 3px;
    box-shadow: 0 0 2px 2px rgba(200,240,200,0.7);
    width:90%;
}

.inputWrapper.focus {
    border-color: #229944;
    box-shadow: 0 0 4px 4px rgba(50,250,70,0.7);
}

.inputWrapper.invalid {
    border-color: red;
    box-shadow: 0 0 4px 4px rgba(250,50,70,0.7);
}

input:focus {
    outline:none;
    border-color:#90FF80;
}

input:invalid{
    outline:none;
    border-color: #FF5E60;
}

JavaScript

$.webshims.polyfill('forms');

$(function() {

    $("input").focus(function() {
        $(this).parent().addClass("focus");
    }).blur(function() {
        $(this).parent().removeClass("focus");
    });

    $(document).bind('invalid', function(e) {
        $(e.target).parent().addClass('invalid');
    });


    $(document).bind('change input', function(e) {
        if ($(e.target).is(':invalid')) {
            if (e.type == 'change') {
                $(e.target).parent().addClass('invalid');
            }
        } else {
            $(e.target).parent().removeClass('invalid');
        }
    });

});