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

Incredible Demos

  • By
    CSS Circles

    A while back I shared a clever technique for creating triangles with only CSS. Over the past year, I've found CSS triangles incredibly effective, especially when looking to create tooltips or design elements with a likewise pointer pattern. There's another common shape...

  • By
    MooTools Documentation Search Favelet

    I'm going to share something with you that will blow your mind: I don't have the MooTools documentation memorized. I just don't. I visit the MooTools docs frequently to figure out the order of parameters of More classes and how best to use...

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!