vendorPrefix.js

/**
 * The MIT License (MIT)
 *
 * Copyright (c) 2015 Famous Industries Inc.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */

'use strict';

var PREFIXES = ['', '-ms-', '-webkit-', '-moz-', '-o-'];

/**
 * A helper function used for determining the vendor prefixed version of the
 * passed in CSS property.
 *
 * Vendor checks are being conducted in the following order:
 *
 * 1. (no prefix)
 * 2. `-mz-`
 * 3. `-webkit-`
 * 4. `-moz-`
 * 5. `-o-`
 *
 * @method vendorPrefix
 *
 * @param {String} property     CSS property (no camelCase), e.g.
 *                              `border-radius`.
 * @return {String} prefixed    Vendor prefixed version of passed in CSS
 *                              property (e.g. `-webkit-border-radius`).
 */
function vendorPrefix(property) {
    for (var i = 0; i < PREFIXES.length; i++) {
        var prefixed = PREFIXES[i] + property;
        if (document.documentElement.style[prefixed] === '') {
            return prefixed;
        }
    }
    return property;
}

module.exports = vendorPrefix;