70 lines
2.5 KiB
JavaScript
70 lines
2.5 KiB
JavaScript
/*!
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* The MIT License (MIT)
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*
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* Copyright (c) 2016 Mykhailo Stadnyk <mikhus@gmail.com>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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/**
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* Look-ups for a proper vendor-specific property and returns its value
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*
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* @example
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* var requestAnimationFrame = vendorize('requestAnimationFrame');
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* // it will refer properly to:
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* // - window.requestAnimationFrame by default or to
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* // - window.webkitRequestAnimationFrame or to
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* // - window.mozRequestAnimationFrame or to
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* // - window.msRequestAnimationFrame or to
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* // - window.oRequestAnimationFrame
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* // depending on the current browser vendor
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*
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* @author Mykhailo Stadnyk <mikhus@gmail.com>
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* @param {string} prop
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* @param {HTMLElement|Window|object} [from] - default is window
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* @returns {*}
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*/
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export default function vendorize(prop, from) {
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/* istanbul ignore else: no reason to cover */
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if (!from) {
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from = typeof window === 'undefined' ? global : window;
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}
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if (typeof from[prop] !== 'undefined') {
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return from[prop];
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}
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let vendors = ['webkit', 'moz', 'ms', 'o'];
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let i = 0;
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let s = vendors.length;
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let capitalized = prop.charAt(0).toUpperCase() + prop.substr(1);
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for (; i < s; i++) {
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let vendorProp = from[vendors[i] + capitalized];
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/* istanbul ignore if: requires very complex environment to test (specific browser version) */
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if (typeof vendorProp !== 'undefined') {
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return vendorProp;
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}
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}
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return null;
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}
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module.exports = vendorize;
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