MooTools: Set Style Per Media

By  on  

I'd bet one of the most used MooTools methods is the setStyle() method, which allows you to set CSS style declarations for an element. One of the limitations of MooTools' setStyle() method is that it sets the specific style for all medias. What if I want to set a style for only a specific media type? I've created a setStile() method that allows you to specify the media for which a style is set.

The MooTools JavaScript

Element.implement({
	'setStile': function(key,value,media) {
		var style = $$('style[media=' + media + ']')[0];
		if(!style) {
			style = new Element('style',{
				'type': 'text/css',
				'media': media
			});
			style.inject(document.head);
		}
		if(!this.get('id')) {
			this.set('id',$uid(this));
		}
		style.set('text',style.get('text') + '#' + this.get('id') + '{ ' + key + ':' + value + '; }');
		return this;
	},
	
	'setStiles': function(keyvalhash,media) {
		for(var key in keyvalhash) {
			this.setStile(key,keyvalhash[key],media);
		}
		return this;
	}
});

Example Usages

$('nonoprint').setStile('color','#f00','print');
$('nonoprint').setStile('display','inline','print');
$('nonoprint').setStile('border','1px solid #00f','print');
$('nonoprint').setStiles({
	'background-color': '#fffea1',
	'font-weight': 'bold',
	'opacity': '.5'
},'print');

The Post-Use HTML View

<style type="text/css" media="print">
#nonoprint{ color:#f00; }
#nonoprint{ display:inline; }
#nonoprint{ border:1px solid #00f; }
#nonoprint{ background-color:#fffea1; }
#nonoprint{ font-weight:bold; }
#nonoprint{ opacity:.5; }
</style>

Obviously, as you can see from the Post-Use HTML, this isn't an elegant solution but it works in all browsers I tested except Internet Explorer. Hopefully a better solution is presented in the future.

Recent Features

  • By
    Interview with a Pornhub Web Developer

    Regardless of your stance on pornography, it would be impossible to deny the massive impact the adult website industry has had on pushing the web forward. From pushing the browser's video limits to pushing ads through WebSocket so ad blockers don't detect them, you have...

  • By
    Create a CSS Cube

    CSS cubes really showcase what CSS has become over the years, evolving from simple color and dimension directives to a language capable of creating deep, creative visuals.  Add animation and you've got something really neat.  Unfortunately each CSS cube tutorial I've read is a bit...

Incredible Demos

  • By
    Styling CSS Print Page Breaks

    It's important to construct your websites in a fashion that lends well to print. I use a page-break CSS class on my websites to tell the browser to insert a page break at strategic points on the page. During the development of my...

  • By
    Create Classy Inputs Using MooTools&#8217; OverText

    The MooTools More library is a goldmine. A treasure chest. Pirates booty, if you will (and, of course, I will). More is full of plugins that add a lot of class and functionality to your website with minimal effort.

Discussion

  1. I’ve noticed that this code no longer works in IE8. This line seems to be causing the problems:

    style.set('text',style.get('text') + '#' + this.get('id') + '{ ' + key + ':' + value + '; }');
    

    Any ideas?

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