qoopido.nucleus/src/support/prefix.js

Lightweight, atomic and modular JavaScript utility library that strongly encourages the creation and usage of small yet flexible, reusable and easily maintainable modules.

/**
 * @require ../function/string/ucfirst
 */

(function(global, document) {
	'use strict';

	function definition(functionStringUcfirst) {
		var styles           = global.getComputedStyle(document.documentElement, ''),
			regexMatchPrefix = /^-(webkit|apple|moz|ms|o)-/,
			prefix           = null,
			i = 0, property;

		return function supportPrefix() {
			if(prefix === null) {
				prefix = false;

				for(; (property = styles[i]); i++) {
					if(regexMatchPrefix.test(property)) {
						prefix = property.match(regexMatchPrefix)[1];

						break;
					}
				}

				if(!prefix && 'WebkitOpacity' in styles) {
					prefix = 'WebKit';
				}

				if(!prefix && 'KhtmlOpacity' in styles) {
					prefix = 'Khtml';
				}

				prefix = prefix ? [prefix.toLowerCase(), functionStringUcfirst(prefix.toLowerCase()), prefix] : [];
			}

			return prefix;
		};
	}

	provide([ '../function/string/ucfirst' ], definition);
}(this, document));