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HTML Settings

Here you can Sed posuere consectetur est at lobortis. Donec ullamcorper nulla non metus auctor fringilla. Maecenas sed diam eget risus varius blandit sit amet non magna. Donec id elit non mi porta gravida at eget metus. Praesent commodo cursus magna, vel scelerisque nisl consectetur et.

              <!-- note this first widget doesn't get setup in JS -->
<!-- everything is done declaratively via our data-widget attribute -->

<div class="widget standard fl bordered" data-widget="dateTime">
    <p class="widget-title">Declarative Widget</p>
    <div class="widget-body">
        <time data-time="date"></time>
        <time data-time="time"></time>

<div class="plugin widget fancy fl bordered">
    <p class="widget-title">jQuery Plugin Widget</p>
    <div class="widget-body">
        <time data-time="date"></time>
        <time data-time="time"></time>

<div id="object-widget" class="widget fancy large fl bordered">
    <p class="widget-title">Object Widget</p>
    <div class="widget-body">
        <a href="#" class="toggle-date">toggle date</a>
        <time data-time="date"></time>
        <time data-time="time"></time>

              body {
    font-family: sans-serif;

.fl {
    float: left;

.fr {
  float: right;

.bordered {
    border: 1px solid #333;

.large {
    font-size: 150%;

.widget {
    margin: 1em;
.widget-title {
    font-size: 1.2em;
    margin-bottom: 0.3em;
    padding: 0.8em;
    margin-top: 0;

.widget-body {
    padding: 1em;

.widget time {
    padding: 0.3em 0;
    display: block;

.widget.standard {
    box-shadow: 1px 1px 6px -2px #222;

.widget.standard .widget-title {
    color: white;
    text-shadow: 1px 1px 2px #000;
    border-bottom: 1px solid #333;
    background-color: red;

.widget.fancy {
	/* oooh fancy, rounded corners lol */
   border-radius: 0 0 0.4em 0.4em;

.fancy .widget-title {
  /* ahh fancy gradients */
	background: #7abcff; /* Old browsers */
	background: -moz-linear-gradient(top, #7abcff 0%, #60abf8 44%, #4096ee 100%); /* FF3.6+ */
	background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,#7abcff), color-stop(44%,#60abf8), color-stop(100%,#4096ee)); /* Chrome,Safari4+ */
	background: -webkit-linear-gradient(top, #7abcff 0%,#60abf8 44%,#4096ee 100%); /* Chrome10+,Safari5.1+ */
	background: -o-linear-gradient(top, #7abcff 0%,#60abf8 44%,#4096ee 100%); /* Opera 11.10+ */
	background: -ms-linear-gradient(top, #7abcff 0%,#60abf8 44%,#4096ee 100%); /* IE10+ */
	background: linear-gradient(to bottom, #7abcff 0%,#60abf8 44%,#4096ee 100%); /* W3C */
	filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#7abcff', endColorstr='#4096ee',GradientType=0 ); /* IE6-9 */

.large .widget-body {
   padding-top: 0; 

.toggle-date {
   font-size: 0.5em;
// so first, we want to create a completely new scope 
// to work in, stops us polluting global namespace.
// we'll use a self-invoking function

// include semicolon to prevent issues if concatenating files

;(function($) {
    //// a contrived widget with a litle functionality

    // only constructors should begin with a capital letter!

    // plus constructors are awesome because all dependencies
    // get passed in, meaning we very easily unit test if need be :)

    function DateTimeWidget(elem) {
        this.$elem     = $(elem);
        this.$timeElem = this.$elem.find('[data-time="time"]');
        this.$dateElem = this.$elem.find('[data-time="date"]');

        this.timeTimer = null;
        this.dateTimer = null;


    // use a prototype because that way every instance of a DateTimeWidget
    // can be extended at once, by anyone, to add new functionality
    DateTimeWidget.prototype = {
        constructor : DateTimeWidget,
        // note use of $.proxy below!

        // this ensures that the callback is always executed
        // in the context of the object you specify - in this
        // case the widget itself.
        // all functions/fields are available without the need
        // for another variable, 's', or whatever :)

        hookupDate : function() {
            this.dateTimer = setInterval($.proxy(this.updateDate, this), 60000);
        hookupTime : function() {
            this.timeTimer = setInterval($.proxy(this.updateTime, this), 100);

        updateTime : function() {
            this.$timeElem.text(new Date().toLocaleTimeString());
        updateDate : function() {
            this.$dateElem.text(new Date().toDateString());
        hideDate : function() {
        showDate : function() {

    // also, latch onto something to expose to the wider world
    window.DateTimeWidget = DateTimeWidget;

    // while we're here, why not make it into 
    // a jQuery plugin?! why the hell not :)    
    // e.g. $(".my-widget").dateTimeWidget()
    $.fn.dateTimeWidget = function(option) {

        return this.each(function() {
            var $this = $(this),
                data  = $this.data("dateTimeWidget");
            // check if we'd already worked on this element
            // if not, new up a widget and store against the element
            if (!data) $this.data("dateTimeWidget", (data = new DateTimeWidget(this)));

            // if a string was passed a string
            // the intention is to call a method on the widget
            // e.g. $(".widget").dateTimeWidget("hideDate");
            if (typeof option === "string") data[option]();

    // we can go one step further again by hooking in a data API!
    // everything can then be set up purely declaratively from HTML
    // e.g. <div data-widget="dateTime"></div>
    // choose whatever naming convention you like
    $("[data-widget=dateTime]").each(function() {


// this is our initialisation script
// where everything on the page gets hooked up

;(function($) {
  var objectWidget  = new DateTimeWidget(document.getElementById("object-widget")),
      $pluginWidget = $(".plugin").dateTimeWidget();

    // we can then interact with the widget differently
    // depending whether working with jQuery plugin or directly with object object
    // so let's do something with our
    // object widget as well, just for proof :)
    // set up a click handler to toggle date
    // note $.proxy again to save writing out an anonymous function
    // NOTE: toggle() as used here has been removed from
    // jQuery 1.9+
    $.proxy(objectWidget.hideDate, objectWidget),
    $.proxy(objectWidget.showDate, objectWidget)


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