Create Twitter-Style Buttons with the Dojo Toolkit

By  on  

I love that JavaScript toolkits make enhancing web pages incredibly easy. Today I'll cover an effect that I've already coded with MooTools: creating a Twitter-style animated "Sign In" button. Check out this five minute tutorial so you can take your static buttons to the next level!

The HTML

<!-- left version -->
<div class="button_wrap">
    <a class="button_aLeft" id="button_aLeft"><span>Use your Twitter ID</span></a>
    <a class="button_bLeft slidebttn" id="button_bLeft">Sign <span>in</span></a>
</div>
<!-- right version -->
<div class="button_wrap">

    <a class="button_aRight" id="button_aRight"><span>Use your Twitter ID</span></a>
    <a class="button_bRight slidebttn" id="button_bRight">Sign <span>in</span></a>
</div>

The "button" consists of one DIV with two sets SPANs wrapped by A elements.

The CSS

.button_wrap{ position:relative; width:225px; height:36px; overflow:hidden; font-weight:bold; font-size:11px; margin:10px; }
.button_aLeft{ width:70px; height:36px; -moz-border-radius:20px; -webkit-border-radius:20px; background-color:#093d6f; color:#fff; top:0px; right:0px; position:absolute; line-height:36px; text-align:left; }
.button_aLeft span{ z-index:200; padding-left:20px; color:#fff; }
.button_aRight{ width:70px; height:36px; -moz-border-radius:20px; -webkit-border-radius:20px; background-color:#093d6f; color:#fff; top:0px; left:0px; position:absolute; line-height:36px; text-align:right; }
.button_aRight span{ z-index:200; padding-right:20px; color:#fff; }

.button_bLeft{ width:64px; height:30px; background-color:#fff; -moz-border-radius:20px; -webkit-border-radius:20px; color:#000; position:absolute; top:3px; right:3px; text-transform:uppercase; line-height:30px; text-align:center; cursor:pointer; }
.button_bLeft span{ color:#008ddd; }
.button_bRight{ width:64px; height:30px; background-color:#fff; -moz-border-radius:20px; -webkit-border-radius:20px; color:#000; position:absolute; top:3px; left:3px; text-transform:uppercase; line-height:30px; text-align:center; cursor:pointer; }
.button_bRight span{ color:#008ddd; }

.button_c{ background-color:#008ddd; color:#fff; text-transform:uppercase; }
.button_c span{ color:#093d6f; }

The CSS code is a mess -- lot of CSS goes into styling the button. As always, style however you'd like. Be careful with this set though -- I recommend sticking to just changing colors.

The Dojo JavaScript

dojo.addOnLoad(function() {
	dojo.forEach(dojo.query('.button_wrap'),function(wrap) {
		var a = dojo.query('a',wrap)[0];
		var span = dojo.query('span',a)[0];
		var button = dojo.query('a',wrap)[1];
		
		dojo.anim(span,{ opacity:0 },1);
		
		dojo.connect(button,'onmouseenter',function() {
			dojo.addClass(button,'button_c');
			dojo.anim(a,{ width:200 });
			dojo.anim(span,{ opacity: 1 });
		});
		dojo.connect(button,'onmouseleave',function() {
			dojo.removeClass(button,'button_c');
			dojo.anim(a,{ width:70 });
			dojo.anim(span,{ opacity: 0 });
		});
	});
});

The first step is to collect each "button" DIV and sift through the its child elements to get links and SPAN elements. When the user's mouse enters the "Sign In" link, the first link within the wrapping DIV grows in width and shows the supporting text.

It's little enhancements like these that take a website from a 6 to an 8, transforming the website from static to dynamic. Can you think of any other small enhancements like this? Share!

Recent Features

Incredible Demos

  • By
    Implement jQuery&#8217;s hover() Method in MooTools

    jQuery offers a quick event shortcut method called hover that accepts two functions that represent mouseover and mouseout actions. Here's how to implement that for MooTools Elements. The MooTools JavaScript We implement hover() which accepts to functions; one will be called on mouseenter and the other...

  • By
    Spyjax:  Ajax For Evil Using Dojo

    The idea of Spyjax is nothing new. In pasts posts I've covered how you can spy on your user's history with both MooTools and jQuery. Today we'll cover how to check user history using the Dojo Toolkit. The HTML For the sake of this...

Discussion

  1. Great Job! Didnt I see these on the Adobe website though?

  2. Good! Maybe you could make a Dojo tutorial (and a Moo one as well)!

  3. @ctult: There are MooTools and jQuery tutorials that mirror this functionality. Check the “Related Posts” section above.

  4. @David Walsh: Oh. Yeah. Erm…I..uh knew that.

  5. Cool effect. I was looking for a different type of a twitter login. This definitely goes into the list.

Wrap your code in <pre class="{language}"></pre> tags, link to a GitHub gist, JSFiddle fiddle, or CodePen pen to embed!