Animated jQuery Progressbar Plugin

  • Reading time:6 mins read

Animated jQuery progressbar. Today we will back to back to jQuery tutorials. Today we will make dynamic animated progressbar. I think you already know this jQuery widget – Progressbar. By default – this is static widget without any animation. Today we will expand possibilities of that plugin – we will make it – dynamic. And also will wrap our result as a new jQuery plugin.

Here are our demo and downloadable package:

Live Demo

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download in package

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Ok, download the example files and lets start coding !

Step 1. HTML

Here are all html of my demo

index.html

<!DOCTYPE html>
<html lang="en">
<head>
<link href="css/jquery-ui-1.8.16.custom.css" rel="stylesheet" type="text/css"/>
<link href="css/main.css" rel="stylesheet" type="text/css" />

<script type="text/javascript" src="js/jquery-1.6.2.min.js"></script>
<script type="text/javascript" src="js/jquery-ui-1.8.16.custom.min.js"></script> 
<script type="text/javascript" src="js/script.js"></script>

<title>Animated jQuery progressbar | Dev School</title>
</head>
<body>
    <div class="example">
        <h3><a href="https://dev-school.net/animated-jquery-progressbar/">Animated jQuery progressbar | Dev School</a></h3>

        <div id="progress1">
            <div class="percent"></div>
            <div class="pbar"></div>
            <div class="elapsed"></div>
        </div>

        <hr />
        <div id="progress2">
            <div class="percent"></div>
            <div class="pbar"></div>
            <div class="elapsed"></div>
        </div>

        <hr />
        <div id="progress3">
            <div class="percent"></div>
            <div class="pbar"></div>
            <div class="elapsed"></div>
        </div>
    </div>
</body>
</html>

As you can see – I prepared 3 progressbars. Each progressbar will have own behaviour (using own properties).

Also, make attention to linked jQuery libraries and styles. How I prepared this? Very easy, goto here, select UI Core and single widget – Progressbar, then – just Download result. You will get package with all necessary libraries (jquery-1.6.2.min.js + jquery-ui-1.8.16.custom.min.js + jquery-ui-1.8.16.custom.css + related images).

Step 2. CSS

Here are our CSS styles.

css/main.css

body{background:#eee;font-family:Verdana, Helvetica, Arial, sans-serif;margin:0;padding:0}
.example{background:#FFF;width:650px;font-size:80%;border:1px #000 solid;margin:20px auto;padding:15px;position:relative;-moz-border-radius: 3px;-webkit-border-radius: 3px}
h3 {text-align:center}

.pbar .ui-progressbar-value {display:block !important}
.pbar {overflow: hidden}
.percent {position:relative;text-align: right;}
.elapsed {position:relative;text-align: right;}

Step 3. JS

In this JS we will write expanded plugin for jQuery with our new progressbar.

js/script.js

$(document).ready(function(){
    jQuery.fn.anim_progressbar = function (aOptions) {
        // def values
        var iCms = 1000;
        var iMms = 60 * iCms;
        var iHms = 3600 * iCms;
        var iDms = 24 * 3600 * iCms;

        // def options
        var aDefOpts = {
            start: new Date(), // now
            finish: new Date().setTime(new Date().getTime() + 60 * iCms), // now + 60 sec
            interval: 100
        }
        var aOpts = jQuery.extend(aDefOpts, aOptions);
        var vPb = this;

        // each progress bar
        return this.each(
            function() {
                var iDuration = aOpts.finish - aOpts.start;

                // calling original progressbar
                $(vPb).children('.pbar').progressbar();

                // looping process
                var vInterval = setInterval(
                    function(){
                        var iLeftMs = aOpts.finish - new Date(); // left time in MS
                        var iElapsedMs = new Date() - aOpts.start, // elapsed time in MS
                            iDays = parseInt(iLeftMs / iDms), // elapsed days
                            iHours = parseInt((iLeftMs - (iDays * iDms)) / iHms), // elapsed hours
                            iMin = parseInt((iLeftMs - (iDays * iDms) - (iHours * iHms)) / iMms), // elapsed minutes
                            iSec = parseInt((iLeftMs - (iDays * iDms) - (iMin * iMms) - (iHours * iHms)) / iCms), // elapsed seconds
                            iPerc = (iElapsedMs > 0) ? iElapsedMs / iDuration * 100 : 0; // percentages

                        // display current positions and progress
                        $(vPb).children('.percent').html('<b>'+iPerc.toFixed(1)+'%</b>');
                        $(vPb).children('.elapsed').html(iDays+' days '+iHours+'h:'+iMin+'m:'+iSec+'s</b>');
                        $(vPb).children('.pbar').children('.ui-progressbar-value').css('width', iPerc+'%');

                        // in case of Finish
                        if (iPerc >= 100) {
                            clearInterval(vInterval);
                            $(vPb).children('.percent').html('<b>100%</b>');
                            $(vPb).children('.elapsed').html('Finished');
                        }
                    } ,aOpts.interval
                );
            }
        );
    }

    // default mode
    $('#progress1').anim_progressbar();

    // from second #5 till 15
    var iNow = new Date().setTime(new Date().getTime() + 5 * 1000); // now plus 5 secs
    var iEnd = new Date().setTime(new Date().getTime() + 15 * 1000); // now plus 15 secs
    $('#progress2').anim_progressbar({start: iNow, finish: iEnd, interval: 100});

    // we will just set interval of updating to 1 sec
    $('#progress3').anim_progressbar({interval: 1000});
});

In first half you can see our new jQuery plugin – anim_progressbar, in second – several examples of initializations with different params. We will pass to constructor next params: start (date of starting), finish (date of finishing) and interval (interval of updating progressbar). Pretty universal, isn’t it? So you can set here not only different time, but even different days (dates) 🙂

Live Demo

Conclusion

Not bad, isn`t it? Today’s lesson shows us how we can create dynamic progressbar. Not only that – we can have some progressbars on the same page, sometimes it is useful. Good luck our readers!