1483 lines
45 KiB
JavaScript
1483 lines
45 KiB
JavaScript
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// NOTE: This file has been modified to set `usePrefixes: false`!
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// Find-replace: %s:/\*!:/*:g
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/*
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* modernizr v3.6.0
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* Build https://modernizr.com/download?-classlist-cssanimations-csspointerevents-cssremunit-csstransforms-customelements-customevent-documentfragment-eventlistener-history-matchmedia-opacity-promises-queryselector-requestanimationframe-template-touchevents-dontmin
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*
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* Copyright (c)
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* Faruk Ates
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* Paul Irish
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* Alex Sexton
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* Ryan Seddon
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* Patrick Kettner
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* Stu Cox
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* Richard Herrera
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* MIT License
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*/
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/*
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* Modernizr tests which native CSS3 and HTML5 features are available in the
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* current UA and makes the results available to you in two ways: as properties on
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* a global `Modernizr` object, and as classes on the `<html>` element. This
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* information allows you to progressively enhance your pages with a granular level
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* of control over the experience.
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*/
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;(function(window, document, undefined){
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var tests = [];
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/**
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*
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* ModernizrProto is the constructor for Modernizr
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*
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* @class
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* @access public
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*/
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var ModernizrProto = {
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// The current version, dummy
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_version: '3.6.0',
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// Any settings that don't work as separate modules
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// can go in here as configuration.
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_config: {
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'classPrefix': '',
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'enableClasses': true,
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'enableJSClass': true,
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'usePrefixes': false,
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},
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// Queue of tests
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_q: [],
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// Stub these for people who are listening
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on: function(test, cb) {
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// I don't really think people should do this, but we can
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// safe guard it a bit.
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// -- NOTE:: this gets WAY overridden in src/addTest for actual async tests.
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// This is in case people listen to synchronous tests. I would leave it out,
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// but the code to *disallow* sync tests in the real version of this
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// function is actually larger than this.
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var self = this;
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setTimeout(function() {
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cb(self[test]);
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}, 0);
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},
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addTest: function(name, fn, options) {
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tests.push({name: name, fn: fn, options: options});
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},
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addAsyncTest: function(fn) {
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tests.push({name: null, fn: fn});
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}
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};
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// Fake some of Object.create so we can force non test results to be non "own" properties.
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var Modernizr = function() {};
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Modernizr.prototype = ModernizrProto;
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// Leak modernizr globally when you `require` it rather than force it here.
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// Overwrite name so constructor name is nicer :D
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Modernizr = new Modernizr();
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// HACK: Manually add `customproperties`...
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var supportsFn = (window.CSS && window.CSS.supports.bind(window.CSS)) || (window.supportsCSS);
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Modernizr.addTest('customproperties', !!supportsFn && (supportsFn('--f:0') || supportsFn('--f', 0)));
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/*
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{
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"name": "Custom Elements API",
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"property": "customelements",
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"tags": ["customelements"],
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"polyfills": ["customelements"],
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"notes": [{
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"name": "Specs for Custom Elements",
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"href": "https://www.w3.org/TR/custom-elements/"
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}]
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}
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!*/
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/* DOC
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Detects support for the Custom Elements API, to create custom html elements via js
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*/
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Modernizr.addTest('customelements', 'customElements' in window);
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/*
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{
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"name": "CustomEvent",
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"property": "customevent",
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"tags": ["customevent"],
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"authors": ["Alberto Elias"],
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"notes": [{
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"name": "W3C DOM reference",
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"href": "https://www.w3.org/TR/DOM-Level-3-Events/#interface-CustomEvent"
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}, {
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"name": "MDN documentation",
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"href": "https://developer.mozilla.org/en/docs/Web/API/CustomEvent"
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}],
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"polyfills": ["eventlistener"]
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}
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!*/
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/* DOC
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Detects support for CustomEvent.
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*/
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Modernizr.addTest('customevent', 'CustomEvent' in window && typeof window.CustomEvent === 'function');
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/*
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{
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"name": "Event Listener",
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"property": "eventlistener",
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"authors": ["Andrew Betts (@triblondon)"],
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"notes": [{
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"name": "W3C Spec",
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"href": "https://www.w3.org/TR/DOM-Level-2-Events/events.html#Events-Registration-interfaces"
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}],
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"polyfills": ["eventlistener"]
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}
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!*/
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/* DOC
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Detects native support for addEventListener
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*/
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Modernizr.addTest('eventlistener', 'addEventListener' in window);
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/*
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{
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"name": "QuerySelector",
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"property": "queryselector",
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"caniuse": "queryselector",
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"tags": ["queryselector"],
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"authors": ["Andrew Betts (@triblondon)"],
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"notes": [{
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"name" : "W3C Selectors reference",
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"href": "https://www.w3.org/TR/selectors-api/#queryselectorall"
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}],
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"polyfills": ["css-selector-engine"]
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}
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!*/
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/* DOC
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Detects support for querySelector.
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*/
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Modernizr.addTest('queryselector', 'querySelector' in document && 'querySelectorAll' in document);
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/*
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{
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"name": "History API",
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"property": "history",
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"caniuse": "history",
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"tags": ["history"],
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"authors": ["Hay Kranen", "Alexander Farkas"],
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"notes": [{
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"name": "W3C Spec",
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"href": "https://www.w3.org/TR/html51/browsers.html#the-history-interface"
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}, {
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"name": "MDN documentation",
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"href": "https://developer.mozilla.org/en-US/docs/Web/API/window.history"
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}],
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"polyfills": ["historyjs", "html5historyapi"]
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}
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!*/
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/* DOC
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Detects support for the History API for manipulating the browser session history.
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*/
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Modernizr.addTest('history', function() {
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// Issue #733
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// The stock browser on Android 2.2 & 2.3, and 4.0.x returns positive on history support
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// Unfortunately support is really buggy and there is no clean way to detect
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// these bugs, so we fall back to a user agent sniff :(
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var ua = navigator.userAgent;
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// We only want Android 2 and 4.0, stock browser, and not Chrome which identifies
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// itself as 'Mobile Safari' as well, nor Windows Phone (issue #1471).
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if ((ua.indexOf('Android 2.') !== -1 ||
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(ua.indexOf('Android 4.0') !== -1)) &&
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ua.indexOf('Mobile Safari') !== -1 &&
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ua.indexOf('Chrome') === -1 &&
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ua.indexOf('Windows Phone') === -1 &&
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// Since all documents on file:// share an origin, the History apis are
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// blocked there as well
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location.protocol !== 'file:'
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) {
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return false;
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}
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// Return the regular check
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return (window.history && 'pushState' in window.history);
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});
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/*
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{
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"name": "ES6 Promises",
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"property": "promises",
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"caniuse": "promises",
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"polyfills": ["es6promises"],
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"authors": ["Krister Kari", "Jake Archibald"],
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"tags": ["es6"],
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"notes": [{
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"name": "The ES6 promises spec",
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"href": "https://github.com/domenic/promises-unwrapping"
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},{
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"name": "Chromium dashboard - ES6 Promises",
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"href": "https://www.chromestatus.com/features/5681726336532480"
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},{
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"name": "JavaScript Promises: There and back again - HTML5 Rocks",
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"href": "http://www.html5rocks.com/en/tutorials/es6/promises/"
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}]
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}
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!*/
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/* DOC
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Check if browser implements ECMAScript 6 Promises per specification.
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*/
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Modernizr.addTest('promises', function() {
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return 'Promise' in window &&
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// Some of these methods are missing from
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// Firefox/Chrome experimental implementations
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'resolve' in window.Promise &&
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'reject' in window.Promise &&
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'all' in window.Promise &&
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'race' in window.Promise &&
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// Older version of the spec had a resolver object
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// as the arg rather than a function
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(function() {
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var resolve;
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new window.Promise(function(r) { resolve = r; });
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return typeof resolve === 'function';
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}());
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});
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/**
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* is returns a boolean if the typeof an obj is exactly type.
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*
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* @access private
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* @function is
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* @param {*} obj - A thing we want to check the type of
|
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* @param {string} type - A string to compare the typeof against
|
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* @returns {boolean}
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*/
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function is(obj, type) {
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return typeof obj === type;
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}
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;
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var classes = [];
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/**
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* Run through all tests and detect their support in the current UA.
|
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*
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* @access private
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*/
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function testRunner() {
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|||
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var featureNames;
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var feature;
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var aliasIdx;
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var result;
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var nameIdx;
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var featureName;
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var featureNameSplit;
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for (var featureIdx in tests) {
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if (tests.hasOwnProperty(featureIdx)) {
|
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featureNames = [];
|
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feature = tests[featureIdx];
|
|||
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// run the test, throw the return value into the Modernizr,
|
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// then based on that boolean, define an appropriate className
|
|||
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// and push it into an array of classes we'll join later.
|
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//
|
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// If there is no name, it's an 'async' test that is run,
|
|||
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// but not directly added to the object. That should
|
|||
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// be done with a post-run addTest call.
|
|||
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if (feature.name) {
|
|||
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featureNames.push(feature.name.toLowerCase());
|
|||
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|
|||
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if (feature.options && feature.options.aliases && feature.options.aliases.length) {
|
|||
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// Add all the aliases into the names list
|
|||
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for (aliasIdx = 0; aliasIdx < feature.options.aliases.length; aliasIdx++) {
|
|||
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featureNames.push(feature.options.aliases[aliasIdx].toLowerCase());
|
|||
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}
|
|||
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}
|
|||
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}
|
|||
|
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|
|||
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// Run the test, or use the raw value if it's not a function
|
|||
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result = is(feature.fn, 'function') ? feature.fn() : feature.fn;
|
|||
|
|
|
|||
|
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|
|||
|
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// Set each of the names on the Modernizr object
|
|||
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for (nameIdx = 0; nameIdx < featureNames.length; nameIdx++) {
|
|||
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featureName = featureNames[nameIdx];
|
|||
|
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// Support dot properties as sub tests. We don't do checking to make sure
|
|||
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// that the implied parent tests have been added. You must call them in
|
|||
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// order (either in the test, or make the parent test a dependency).
|
|||
|
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//
|
|||
|
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// Cap it to TWO to make the logic simple and because who needs that kind of subtesting
|
|||
|
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// hashtag famous last words
|
|||
|
|
featureNameSplit = featureName.split('.');
|
|||
|
|
|
|||
|
|
if (featureNameSplit.length === 1) {
|
|||
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Modernizr[featureNameSplit[0]] = result;
|
|||
|
|
} else {
|
|||
|
|
// cast to a Boolean, if not one already
|
|||
|
|
if (Modernizr[featureNameSplit[0]] && !(Modernizr[featureNameSplit[0]] instanceof Boolean)) {
|
|||
|
|
Modernizr[featureNameSplit[0]] = new Boolean(Modernizr[featureNameSplit[0]]);
|
|||
|
|
}
|
|||
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|
|
|||
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Modernizr[featureNameSplit[0]][featureNameSplit[1]] = result;
|
|||
|
|
}
|
|||
|
|
|
|||
|
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classes.push((result ? '' : 'no-') + featureNameSplit.join('-'));
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
;
|
|||
|
|
|
|||
|
|
/**
|
|||
|
|
* List of property values to set for css tests. See ticket #21
|
|||
|
|
* http://git.io/vUGl4
|
|||
|
|
*
|
|||
|
|
* @memberof Modernizr
|
|||
|
|
* @name Modernizr._prefixes
|
|||
|
|
* @optionName Modernizr._prefixes
|
|||
|
|
* @optionProp prefixes
|
|||
|
|
* @access public
|
|||
|
|
* @example
|
|||
|
|
*
|
|||
|
|
* Modernizr._prefixes is the internal list of prefixes that we test against
|
|||
|
|
* inside of things like [prefixed](#modernizr-prefixed) and [prefixedCSS](#-code-modernizr-prefixedcss). It is simply
|
|||
|
|
* an array of kebab-case vendor prefixes you can use within your code.
|
|||
|
|
*
|
|||
|
|
* Some common use cases include
|
|||
|
|
*
|
|||
|
|
* Generating all possible prefixed version of a CSS property
|
|||
|
|
* ```js
|
|||
|
|
* var rule = Modernizr._prefixes.join('transform: rotate(20deg); ');
|
|||
|
|
*
|
|||
|
|
* rule === 'transform: rotate(20deg); webkit-transform: rotate(20deg); moz-transform: rotate(20deg); o-transform: rotate(20deg); ms-transform: rotate(20deg);'
|
|||
|
|
* ```
|
|||
|
|
*
|
|||
|
|
* Generating all possible prefixed version of a CSS value
|
|||
|
|
* ```js
|
|||
|
|
* rule = 'display:' + Modernizr._prefixes.join('flex; display:') + 'flex';
|
|||
|
|
*
|
|||
|
|
* rule === 'display:flex; display:-webkit-flex; display:-moz-flex; display:-o-flex; display:-ms-flex; display:flex'
|
|||
|
|
* ```
|
|||
|
|
*/
|
|||
|
|
|
|||
|
|
// we use ['',''] rather than an empty array in order to allow a pattern of .`join()`ing prefixes to test
|
|||
|
|
// values in feature detects to continue to work
|
|||
|
|
var prefixes = (ModernizrProto._config.usePrefixes ? ' -webkit- -moz- -o- -ms- '.split(' ') : ['','']);
|
|||
|
|
|
|||
|
|
// expose these for the plugin API. Look in the source for how to join() them against your input
|
|||
|
|
ModernizrProto._prefixes = prefixes;
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
/**
|
|||
|
|
* docElement is a convenience wrapper to grab the root element of the document
|
|||
|
|
*
|
|||
|
|
* @access private
|
|||
|
|
* @returns {HTMLElement|SVGElement} The root element of the document
|
|||
|
|
*/
|
|||
|
|
|
|||
|
|
var docElement = document.documentElement;
|
|||
|
|
|
|||
|
|
/*
|
|||
|
|
{
|
|||
|
|
"name": "classList",
|
|||
|
|
"caniuse": "classlist",
|
|||
|
|
"property": "classlist",
|
|||
|
|
"tags": ["dom"],
|
|||
|
|
"builderAliases": ["dataview_api"],
|
|||
|
|
"notes": [{
|
|||
|
|
"name": "MDN Docs",
|
|||
|
|
"href": "https://developer.mozilla.org/en/DOM/element.classList"
|
|||
|
|
}]
|
|||
|
|
}
|
|||
|
|
!*/
|
|||
|
|
|
|||
|
|
Modernizr.addTest('classlist', 'classList' in docElement);
|
|||
|
|
|
|||
|
|
/*
|
|||
|
|
{
|
|||
|
|
"name": "Document Fragment",
|
|||
|
|
"property": "documentfragment",
|
|||
|
|
"notes": [{
|
|||
|
|
"name": "W3C DOM Level 1 Reference",
|
|||
|
|
"href": "https://www.w3.org/TR/REC-DOM-Level-1/level-one-core.html#ID-B63ED1A3"
|
|||
|
|
}, {
|
|||
|
|
"name": "SitePoint Reference",
|
|||
|
|
"href": "http://reference.sitepoint.com/javascript/DocumentFragment"
|
|||
|
|
}, {
|
|||
|
|
"name": "QuirksMode Compatibility Tables",
|
|||
|
|
"href": "http://www.quirksmode.org/m/w3c_core.html#t112"
|
|||
|
|
}],
|
|||
|
|
"authors": ["Ron Waldon (@jokeyrhyme)"],
|
|||
|
|
"knownBugs": ["false-positive on Blackberry 9500, see QuirksMode note"],
|
|||
|
|
"tags": []
|
|||
|
|
}
|
|||
|
|
!*/
|
|||
|
|
/* DOC
|
|||
|
|
Append multiple elements to the DOM within a single insertion.
|
|||
|
|
*/
|
|||
|
|
|
|||
|
|
Modernizr.addTest('documentfragment', function() {
|
|||
|
|
return 'createDocumentFragment' in document &&
|
|||
|
|
'appendChild' in docElement;
|
|||
|
|
});
|
|||
|
|
|
|||
|
|
|
|||
|
|
/**
|
|||
|
|
* A convenience helper to check if the document we are running in is an SVG document
|
|||
|
|
*
|
|||
|
|
* @access private
|
|||
|
|
* @returns {boolean}
|
|||
|
|
*/
|
|||
|
|
|
|||
|
|
var isSVG = docElement.nodeName.toLowerCase() === 'svg';
|
|||
|
|
|
|||
|
|
|
|||
|
|
/**
|
|||
|
|
* createElement is a convenience wrapper around document.createElement. Since we
|
|||
|
|
* use createElement all over the place, this allows for (slightly) smaller code
|
|||
|
|
* as well as abstracting away issues with creating elements in contexts other than
|
|||
|
|
* HTML documents (e.g. SVG documents).
|
|||
|
|
*
|
|||
|
|
* @access private
|
|||
|
|
* @function createElement
|
|||
|
|
* @returns {HTMLElement|SVGElement} An HTML or SVG element
|
|||
|
|
*/
|
|||
|
|
|
|||
|
|
function createElement() {
|
|||
|
|
if (typeof document.createElement !== 'function') {
|
|||
|
|
// This is the case in IE7, where the type of createElement is "object".
|
|||
|
|
// For this reason, we cannot call apply() as Object is not a Function.
|
|||
|
|
return document.createElement(arguments[0]);
|
|||
|
|
} else if (isSVG) {
|
|||
|
|
return document.createElementNS.call(document, 'http://www.w3.org/2000/svg', arguments[0]);
|
|||
|
|
} else {
|
|||
|
|
return document.createElement.apply(document, arguments);
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
;
|
|||
|
|
/*
|
|||
|
|
{
|
|||
|
|
"name": "CSS Opacity",
|
|||
|
|
"caniuse": "css-opacity",
|
|||
|
|
"property": "opacity",
|
|||
|
|
"tags": ["css"]
|
|||
|
|
}
|
|||
|
|
!*/
|
|||
|
|
|
|||
|
|
// Browsers that actually have CSS Opacity implemented have done so
|
|||
|
|
// according to spec, which means their return values are within the
|
|||
|
|
// range of [0.0,1.0] - including the leading zero.
|
|||
|
|
|
|||
|
|
Modernizr.addTest('opacity', function() {
|
|||
|
|
var style = createElement('a').style;
|
|||
|
|
style.cssText = prefixes.join('opacity:.55;');
|
|||
|
|
|
|||
|
|
// The non-literal . in this regex is intentional:
|
|||
|
|
// German Chrome returns this value as 0,55
|
|||
|
|
// github.com/Modernizr/Modernizr/issues/#issue/59/comment/516632
|
|||
|
|
return (/^0.55$/).test(style.opacity);
|
|||
|
|
});
|
|||
|
|
|
|||
|
|
/*
|
|||
|
|
{
|
|||
|
|
"name": "CSS Pointer Events",
|
|||
|
|
"caniuse": "pointer-events",
|
|||
|
|
"property": "csspointerevents",
|
|||
|
|
"authors": ["ausi"],
|
|||
|
|
"tags": ["css"],
|
|||
|
|
"builderAliases": ["css_pointerevents"],
|
|||
|
|
"notes": [
|
|||
|
|
{
|
|||
|
|
"name": "MDN Docs",
|
|||
|
|
"href": "https://developer.mozilla.org/en-US/docs/Web/CSS/pointer-events"
|
|||
|
|
},{
|
|||
|
|
"name": "Test Project Page",
|
|||
|
|
"href": "https://ausi.github.com/Feature-detection-technique-for-pointer-events/"
|
|||
|
|
},{
|
|||
|
|
"name": "Test Project Wiki",
|
|||
|
|
"href": "https://github.com/ausi/Feature-detection-technique-for-pointer-events/wiki"
|
|||
|
|
},
|
|||
|
|
{
|
|||
|
|
"name": "Related Github Issue",
|
|||
|
|
"href": "https://github.com/Modernizr/Modernizr/issues/80"
|
|||
|
|
}
|
|||
|
|
]
|
|||
|
|
}
|
|||
|
|
!*/
|
|||
|
|
|
|||
|
|
Modernizr.addTest('csspointerevents', function() {
|
|||
|
|
var style = createElement('a').style;
|
|||
|
|
style.cssText = 'pointer-events:auto';
|
|||
|
|
return style.pointerEvents === 'auto';
|
|||
|
|
});
|
|||
|
|
|
|||
|
|
/*
|
|||
|
|
{
|
|||
|
|
"name": "CSS Font rem Units",
|
|||
|
|
"caniuse": "rem",
|
|||
|
|
"authors": ["nsfmc"],
|
|||
|
|
"property": "cssremunit",
|
|||
|
|
"tags": ["css"],
|
|||
|
|
"builderAliases": ["css_remunit"],
|
|||
|
|
"notes": [{
|
|||
|
|
"name": "W3C Spec",
|
|||
|
|
"href": "https://www.w3.org/TR/css3-values/#relative0"
|
|||
|
|
},{
|
|||
|
|
"name": "Font Size with rem by Jonathan Snook",
|
|||
|
|
"href": "http://snook.ca/archives/html_and_css/font-size-with-rem"
|
|||
|
|
}]
|
|||
|
|
}
|
|||
|
|
!*/
|
|||
|
|
|
|||
|
|
// "The 'rem' unit ('root em') is relative to the computed
|
|||
|
|
// value of the 'font-size' value of the root element."
|
|||
|
|
// you can test by checking if the prop was ditched
|
|||
|
|
|
|||
|
|
Modernizr.addTest('cssremunit', function() {
|
|||
|
|
var style = createElement('a').style;
|
|||
|
|
try {
|
|||
|
|
style.fontSize = '3rem';
|
|||
|
|
}
|
|||
|
|
catch (e) {}
|
|||
|
|
return (/rem/).test(style.fontSize);
|
|||
|
|
});
|
|||
|
|
|
|||
|
|
/*
|
|||
|
|
{
|
|||
|
|
"name": "Template Tag",
|
|||
|
|
"property": "template",
|
|||
|
|
"tags": ["elem"],
|
|||
|
|
"notes": [{
|
|||
|
|
"name": "HTML5Rocks Article",
|
|||
|
|
"href": "http://www.html5rocks.com/en/tutorials/webcomponents/template/"
|
|||
|
|
},{
|
|||
|
|
"name": "W3 Spec",
|
|||
|
|
"href": "https://dvcs.w3.org/hg/webcomponents/raw-file/tip/spec/templates/index.html"
|
|||
|
|
}]
|
|||
|
|
}
|
|||
|
|
!*/
|
|||
|
|
|
|||
|
|
Modernizr.addTest('template', 'content' in createElement('template'));
|
|||
|
|
|
|||
|
|
|
|||
|
|
/**
|
|||
|
|
* cssToDOM takes a kebab-case string and converts it to camelCase
|
|||
|
|
* e.g. box-sizing -> boxSizing
|
|||
|
|
*
|
|||
|
|
* @access private
|
|||
|
|
* @function cssToDOM
|
|||
|
|
* @param {string} name - String name of kebab-case prop we want to convert
|
|||
|
|
* @returns {string} The camelCase version of the supplied name
|
|||
|
|
*/
|
|||
|
|
|
|||
|
|
function cssToDOM(name) {
|
|||
|
|
return name.replace(/([a-z])-([a-z])/g, function(str, m1, m2) {
|
|||
|
|
return m1 + m2.toUpperCase();
|
|||
|
|
}).replace(/^-/, '');
|
|||
|
|
}
|
|||
|
|
;
|
|||
|
|
|
|||
|
|
/**
|
|||
|
|
* getBody returns the body of a document, or an element that can stand in for
|
|||
|
|
* the body if a real body does not exist
|
|||
|
|
*
|
|||
|
|
* @access private
|
|||
|
|
* @function getBody
|
|||
|
|
* @returns {HTMLElement|SVGElement} Returns the real body of a document, or an
|
|||
|
|
* artificially created element that stands in for the body
|
|||
|
|
*/
|
|||
|
|
|
|||
|
|
function getBody() {
|
|||
|
|
// After page load injecting a fake body doesn't work so check if body exists
|
|||
|
|
var body = document.body;
|
|||
|
|
|
|||
|
|
if (!body) {
|
|||
|
|
// Can't use the real body create a fake one.
|
|||
|
|
body = createElement(isSVG ? 'svg' : 'body');
|
|||
|
|
body.fake = true;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
return body;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
;
|
|||
|
|
|
|||
|
|
/**
|
|||
|
|
* injectElementWithStyles injects an element with style element and some CSS rules
|
|||
|
|
*
|
|||
|
|
* @access private
|
|||
|
|
* @function injectElementWithStyles
|
|||
|
|
* @param {string} rule - String representing a css rule
|
|||
|
|
* @param {function} callback - A function that is used to test the injected element
|
|||
|
|
* @param {number} [nodes] - An integer representing the number of additional nodes you want injected
|
|||
|
|
* @param {string[]} [testnames] - An array of strings that are used as ids for the additional nodes
|
|||
|
|
* @returns {boolean}
|
|||
|
|
*/
|
|||
|
|
|
|||
|
|
function injectElementWithStyles(rule, callback, nodes, testnames) {
|
|||
|
|
var mod = 'modernizr';
|
|||
|
|
var style;
|
|||
|
|
var ret;
|
|||
|
|
var node;
|
|||
|
|
var docOverflow;
|
|||
|
|
var div = createElement('div');
|
|||
|
|
var body = getBody();
|
|||
|
|
|
|||
|
|
if (parseInt(nodes, 10)) {
|
|||
|
|
// In order not to give false positives we create a node for each test
|
|||
|
|
// This also allows the method to scale for unspecified uses
|
|||
|
|
while (nodes--) {
|
|||
|
|
node = createElement('div');
|
|||
|
|
node.id = testnames ? testnames[nodes] : mod + (nodes + 1);
|
|||
|
|
div.appendChild(node);
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
style = createElement('style');
|
|||
|
|
style.type = 'text/css';
|
|||
|
|
style.id = 's' + mod;
|
|||
|
|
|
|||
|
|
// IE6 will false positive on some tests due to the style element inside the test div somehow interfering offsetHeight, so insert it into body or fakebody.
|
|||
|
|
// Opera will act all quirky when injecting elements in documentElement when page is served as xml, needs fakebody too. #270
|
|||
|
|
(!body.fake ? div : body).appendChild(style);
|
|||
|
|
body.appendChild(div);
|
|||
|
|
|
|||
|
|
if (style.styleSheet) {
|
|||
|
|
style.styleSheet.cssText = rule;
|
|||
|
|
} else {
|
|||
|
|
style.appendChild(document.createTextNode(rule));
|
|||
|
|
}
|
|||
|
|
div.id = mod;
|
|||
|
|
|
|||
|
|
if (body.fake) {
|
|||
|
|
//avoid crashing IE8, if background image is used
|
|||
|
|
body.style.background = '';
|
|||
|
|
//Safari 5.13/5.1.4 OSX stops loading if ::-webkit-scrollbar is used and scrollbars are visible
|
|||
|
|
body.style.overflow = 'hidden';
|
|||
|
|
docOverflow = docElement.style.overflow;
|
|||
|
|
docElement.style.overflow = 'hidden';
|
|||
|
|
docElement.appendChild(body);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
ret = callback(div, rule);
|
|||
|
|
// If this is done after page load we don't want to remove the body so check if body exists
|
|||
|
|
if (body.fake) {
|
|||
|
|
body.parentNode.removeChild(body);
|
|||
|
|
docElement.style.overflow = docOverflow;
|
|||
|
|
// Trigger layout so kinetic scrolling isn't disabled in iOS6+
|
|||
|
|
// eslint-disable-next-line
|
|||
|
|
docElement.offsetHeight;
|
|||
|
|
} else {
|
|||
|
|
div.parentNode.removeChild(div);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
return !!ret;
|
|||
|
|
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
;
|
|||
|
|
|
|||
|
|
/**
|
|||
|
|
* testStyles injects an element with style element and some CSS rules
|
|||
|
|
*
|
|||
|
|
* @memberof Modernizr
|
|||
|
|
* @name Modernizr.testStyles
|
|||
|
|
* @optionName Modernizr.testStyles()
|
|||
|
|
* @optionProp testStyles
|
|||
|
|
* @access public
|
|||
|
|
* @function testStyles
|
|||
|
|
* @param {string} rule - String representing a css rule
|
|||
|
|
* @param {function} callback - A function that is used to test the injected element
|
|||
|
|
* @param {number} [nodes] - An integer representing the number of additional nodes you want injected
|
|||
|
|
* @param {string[]} [testnames] - An array of strings that are used as ids for the additional nodes
|
|||
|
|
* @returns {boolean}
|
|||
|
|
* @example
|
|||
|
|
*
|
|||
|
|
* `Modernizr.testStyles` takes a CSS rule and injects it onto the current page
|
|||
|
|
* along with (possibly multiple) DOM elements. This lets you check for features
|
|||
|
|
* that can not be detected by simply checking the [IDL](https://developer.mozilla.org/en-US/docs/Mozilla/Developer_guide/Interface_development_guide/IDL_interface_rules).
|
|||
|
|
*
|
|||
|
|
* ```js
|
|||
|
|
* Modernizr.testStyles('#modernizr { width: 9px; color: papayawhip; }', function(elem, rule) {
|
|||
|
|
* // elem is the first DOM node in the page (by default #modernizr)
|
|||
|
|
* // rule is the first argument you supplied - the CSS rule in string form
|
|||
|
|
*
|
|||
|
|
* addTest('widthworks', elem.style.width === '9px')
|
|||
|
|
* });
|
|||
|
|
* ```
|
|||
|
|
*
|
|||
|
|
* If your test requires multiple nodes, you can include a third argument
|
|||
|
|
* indicating how many additional div elements to include on the page. The
|
|||
|
|
* additional nodes are injected as children of the `elem` that is returned as
|
|||
|
|
* the first argument to the callback.
|
|||
|
|
*
|
|||
|
|
* ```js
|
|||
|
|
* Modernizr.testStyles('#modernizr {width: 1px}; #modernizr2 {width: 2px}', function(elem) {
|
|||
|
|
* document.getElementById('modernizr').style.width === '1px'; // true
|
|||
|
|
* document.getElementById('modernizr2').style.width === '2px'; // true
|
|||
|
|
* elem.firstChild === document.getElementById('modernizr2'); // true
|
|||
|
|
* }, 1);
|
|||
|
|
* ```
|
|||
|
|
*
|
|||
|
|
* By default, all of the additional elements have an ID of `modernizr[n]`, where
|
|||
|
|
* `n` is its index (e.g. the first additional, second overall is `#modernizr2`,
|
|||
|
|
* the second additional is `#modernizr3`, etc.).
|
|||
|
|
* If you want to have more meaningful IDs for your function, you can provide
|
|||
|
|
* them as the fourth argument, as an array of strings
|
|||
|
|
*
|
|||
|
|
* ```js
|
|||
|
|
* Modernizr.testStyles('#foo {width: 10px}; #bar {height: 20px}', function(elem) {
|
|||
|
|
* elem.firstChild === document.getElementById('foo'); // true
|
|||
|
|
* elem.lastChild === document.getElementById('bar'); // true
|
|||
|
|
* }, 2, ['foo', 'bar']);
|
|||
|
|
* ```
|
|||
|
|
*
|
|||
|
|
*/
|
|||
|
|
|
|||
|
|
var testStyles = ModernizrProto.testStyles = injectElementWithStyles;
|
|||
|
|
|
|||
|
|
/*
|
|||
|
|
{
|
|||
|
|
"name": "Touch Events",
|
|||
|
|
"property": "touchevents",
|
|||
|
|
"caniuse" : "touch",
|
|||
|
|
"tags": ["media", "attribute"],
|
|||
|
|
"notes": [{
|
|||
|
|
"name": "Touch Events spec",
|
|||
|
|
"href": "https://www.w3.org/TR/2013/WD-touch-events-20130124/"
|
|||
|
|
}],
|
|||
|
|
"warnings": [
|
|||
|
|
"Indicates if the browser supports the Touch Events spec, and does not necessarily reflect a touchscreen device"
|
|||
|
|
],
|
|||
|
|
"knownBugs": [
|
|||
|
|
"False-positive on some configurations of Nokia N900",
|
|||
|
|
"False-positive on some BlackBerry 6.0 builds – https://github.com/Modernizr/Modernizr/issues/372#issuecomment-3112695"
|
|||
|
|
]
|
|||
|
|
}
|
|||
|
|
!*/
|
|||
|
|
/* DOC
|
|||
|
|
Indicates if the browser supports the W3C Touch Events API.
|
|||
|
|
|
|||
|
|
This *does not* necessarily reflect a touchscreen device:
|
|||
|
|
|
|||
|
|
* Older touchscreen devices only emulate mouse events
|
|||
|
|
* Modern IE touch devices implement the Pointer Events API instead: use `Modernizr.pointerevents` to detect support for that
|
|||
|
|
* Some browsers & OS setups may enable touch APIs when no touchscreen is connected
|
|||
|
|
* Future browsers may implement other event models for touch interactions
|
|||
|
|
|
|||
|
|
See this article: [You Can't Detect A Touchscreen](http://www.stucox.com/blog/you-cant-detect-a-touchscreen/).
|
|||
|
|
|
|||
|
|
It's recommended to bind both mouse and touch/pointer events simultaneously – see [this HTML5 Rocks tutorial](http://www.html5rocks.com/en/mobile/touchandmouse/).
|
|||
|
|
|
|||
|
|
This test will also return `true` for Firefox 4 Multitouch support.
|
|||
|
|
*/
|
|||
|
|
|
|||
|
|
// Chrome (desktop) used to lie about its support on this, but that has since been rectified: http://crbug.com/36415
|
|||
|
|
Modernizr.addTest('touchevents', function() {
|
|||
|
|
var bool;
|
|||
|
|
if (('ontouchstart' in window) || window.DocumentTouch && document instanceof DocumentTouch) {
|
|||
|
|
bool = true;
|
|||
|
|
} else {
|
|||
|
|
// include the 'heartz' as a way to have a non matching MQ to help terminate the join
|
|||
|
|
// https://git.io/vznFH
|
|||
|
|
var query = ['@media (', prefixes.join('touch-enabled),('), 'heartz', ')', '{#modernizr{top:9px;position:absolute}}'].join('');
|
|||
|
|
testStyles(query, function(node) {
|
|||
|
|
bool = node.offsetTop === 9;
|
|||
|
|
});
|
|||
|
|
}
|
|||
|
|
return bool;
|
|||
|
|
});
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
/**
|
|||
|
|
* contains checks to see if a string contains another string
|
|||
|
|
*
|
|||
|
|
* @access private
|
|||
|
|
* @function contains
|
|||
|
|
* @param {string} str - The string we want to check for substrings
|
|||
|
|
* @param {string} substr - The substring we want to search the first string for
|
|||
|
|
* @returns {boolean}
|
|||
|
|
*/
|
|||
|
|
|
|||
|
|
function contains(str, substr) {
|
|||
|
|
return !!~('' + str).indexOf(substr);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
;
|
|||
|
|
|
|||
|
|
/**
|
|||
|
|
* If the browsers follow the spec, then they would expose vendor-specific styles as:
|
|||
|
|
* elem.style.WebkitBorderRadius
|
|||
|
|
* instead of something like the following (which is technically incorrect):
|
|||
|
|
* elem.style.webkitBorderRadius
|
|||
|
|
|
|||
|
|
* WebKit ghosts their properties in lowercase but Opera & Moz do not.
|
|||
|
|
* Microsoft uses a lowercase `ms` instead of the correct `Ms` in IE8+
|
|||
|
|
* erik.eae.net/archives/2008/03/10/21.48.10/
|
|||
|
|
|
|||
|
|
* More here: github.com/Modernizr/Modernizr/issues/issue/21
|
|||
|
|
*
|
|||
|
|
* @access private
|
|||
|
|
* @returns {string} The string representing the vendor-specific style properties
|
|||
|
|
*/
|
|||
|
|
|
|||
|
|
var omPrefixes = 'Moz O ms Webkit';
|
|||
|
|
|
|||
|
|
|
|||
|
|
var cssomPrefixes = (ModernizrProto._config.usePrefixes ? omPrefixes.split(' ') : []);
|
|||
|
|
ModernizrProto._cssomPrefixes = cssomPrefixes;
|
|||
|
|
|
|||
|
|
|
|||
|
|
/**
|
|||
|
|
* atRule returns a given CSS property at-rule (eg @keyframes), possibly in
|
|||
|
|
* some prefixed form, or false, in the case of an unsupported rule
|
|||
|
|
*
|
|||
|
|
* @memberof Modernizr
|
|||
|
|
* @name Modernizr.atRule
|
|||
|
|
* @optionName Modernizr.atRule()
|
|||
|
|
* @optionProp atRule
|
|||
|
|
* @access public
|
|||
|
|
* @function atRule
|
|||
|
|
* @param {string} prop - String name of the @-rule to test for
|
|||
|
|
* @returns {string|boolean} The string representing the (possibly prefixed)
|
|||
|
|
* valid version of the @-rule, or `false` when it is unsupported.
|
|||
|
|
* @example
|
|||
|
|
* ```js
|
|||
|
|
* var keyframes = Modernizr.atRule('@keyframes');
|
|||
|
|
*
|
|||
|
|
* if (keyframes) {
|
|||
|
|
* // keyframes are supported
|
|||
|
|
* // could be `@-webkit-keyframes` or `@keyframes`
|
|||
|
|
* } else {
|
|||
|
|
* // keyframes === `false`
|
|||
|
|
* }
|
|||
|
|
* ```
|
|||
|
|
*
|
|||
|
|
*/
|
|||
|
|
|
|||
|
|
var atRule = function(prop) {
|
|||
|
|
var length = prefixes.length;
|
|||
|
|
var cssrule = window.CSSRule;
|
|||
|
|
var rule;
|
|||
|
|
|
|||
|
|
if (typeof cssrule === 'undefined') {
|
|||
|
|
return undefined;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
if (!prop) {
|
|||
|
|
return false;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
// remove literal @ from beginning of provided property
|
|||
|
|
prop = prop.replace(/^@/, '');
|
|||
|
|
|
|||
|
|
// CSSRules use underscores instead of dashes
|
|||
|
|
rule = prop.replace(/-/g, '_').toUpperCase() + '_RULE';
|
|||
|
|
|
|||
|
|
if (rule in cssrule) {
|
|||
|
|
return '@' + prop;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
for (var i = 0; i < length; i++) {
|
|||
|
|
// prefixes gives us something like -o-, and we want O_
|
|||
|
|
var prefix = prefixes[i];
|
|||
|
|
var thisRule = prefix.toUpperCase() + '_' + rule;
|
|||
|
|
|
|||
|
|
if (thisRule in cssrule) {
|
|||
|
|
return '@-' + prefix.toLowerCase() + '-' + prop;
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
return false;
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
ModernizrProto.atRule = atRule;
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
/**
|
|||
|
|
* List of JavaScript DOM values used for tests
|
|||
|
|
*
|
|||
|
|
* @memberof Modernizr
|
|||
|
|
* @name Modernizr._domPrefixes
|
|||
|
|
* @optionName Modernizr._domPrefixes
|
|||
|
|
* @optionProp domPrefixes
|
|||
|
|
* @access public
|
|||
|
|
* @example
|
|||
|
|
*
|
|||
|
|
* Modernizr._domPrefixes is exactly the same as [_prefixes](#modernizr-_prefixes), but rather
|
|||
|
|
* than kebab-case properties, all properties are their Capitalized variant
|
|||
|
|
*
|
|||
|
|
* ```js
|
|||
|
|
* Modernizr._domPrefixes === [ "Moz", "O", "ms", "Webkit" ];
|
|||
|
|
* ```
|
|||
|
|
*/
|
|||
|
|
|
|||
|
|
var domPrefixes = (ModernizrProto._config.usePrefixes ? omPrefixes.toLowerCase().split(' ') : []);
|
|||
|
|
ModernizrProto._domPrefixes = domPrefixes;
|
|||
|
|
|
|||
|
|
|
|||
|
|
/**
|
|||
|
|
* fnBind is a super small [bind](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Function/bind) polyfill.
|
|||
|
|
*
|
|||
|
|
* @access private
|
|||
|
|
* @function fnBind
|
|||
|
|
* @param {function} fn - a function you want to change `this` reference to
|
|||
|
|
* @param {object} that - the `this` you want to call the function with
|
|||
|
|
* @returns {function} The wrapped version of the supplied function
|
|||
|
|
*/
|
|||
|
|
|
|||
|
|
function fnBind(fn, that) {
|
|||
|
|
return function() {
|
|||
|
|
return fn.apply(that, arguments);
|
|||
|
|
};
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
;
|
|||
|
|
|
|||
|
|
/**
|
|||
|
|
* testDOMProps is a generic DOM property test; if a browser supports
|
|||
|
|
* a certain property, it won't return undefined for it.
|
|||
|
|
*
|
|||
|
|
* @access private
|
|||
|
|
* @function testDOMProps
|
|||
|
|
* @param {array.<string>} props - An array of properties to test for
|
|||
|
|
* @param {object} obj - An object or Element you want to use to test the parameters again
|
|||
|
|
* @param {boolean|object} elem - An Element to bind the property lookup again. Use `false` to prevent the check
|
|||
|
|
* @returns {false|*} returns false if the prop is unsupported, otherwise the value that is supported
|
|||
|
|
*/
|
|||
|
|
function testDOMProps(props, obj, elem) {
|
|||
|
|
var item;
|
|||
|
|
|
|||
|
|
for (var i in props) {
|
|||
|
|
if (props[i] in obj) {
|
|||
|
|
|
|||
|
|
// return the property name as a string
|
|||
|
|
if (elem === false) {
|
|||
|
|
return props[i];
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
item = obj[props[i]];
|
|||
|
|
|
|||
|
|
// let's bind a function
|
|||
|
|
if (is(item, 'function')) {
|
|||
|
|
// bind to obj unless overriden
|
|||
|
|
return fnBind(item, elem || obj);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
// return the unbound function or obj or value
|
|||
|
|
return item;
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
return false;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
;
|
|||
|
|
|
|||
|
|
/**
|
|||
|
|
* domToCSS takes a camelCase string and converts it to kebab-case
|
|||
|
|
* e.g. boxSizing -> box-sizing
|
|||
|
|
*
|
|||
|
|
* @access private
|
|||
|
|
* @function domToCSS
|
|||
|
|
* @param {string} name - String name of camelCase prop we want to convert
|
|||
|
|
* @returns {string} The kebab-case version of the supplied name
|
|||
|
|
*/
|
|||
|
|
|
|||
|
|
function domToCSS(name) {
|
|||
|
|
return name.replace(/([A-Z])/g, function(str, m1) {
|
|||
|
|
return '-' + m1.toLowerCase();
|
|||
|
|
}).replace(/^ms-/, '-ms-');
|
|||
|
|
}
|
|||
|
|
;
|
|||
|
|
|
|||
|
|
|
|||
|
|
/**
|
|||
|
|
* wrapper around getComputedStyle, to fix issues with Firefox returning null when
|
|||
|
|
* called inside of a hidden iframe
|
|||
|
|
*
|
|||
|
|
* @access private
|
|||
|
|
* @function computedStyle
|
|||
|
|
* @param {HTMLElement|SVGElement} - The element we want to find the computed styles of
|
|||
|
|
* @param {string|null} [pseudoSelector]- An optional pseudo element selector (e.g. :before), of null if none
|
|||
|
|
* @returns {CSSStyleDeclaration}
|
|||
|
|
*/
|
|||
|
|
|
|||
|
|
function computedStyle(elem, pseudo, prop) {
|
|||
|
|
var result;
|
|||
|
|
|
|||
|
|
if ('getComputedStyle' in window) {
|
|||
|
|
result = getComputedStyle.call(window, elem, pseudo);
|
|||
|
|
var console = window.console;
|
|||
|
|
|
|||
|
|
if (result !== null) {
|
|||
|
|
if (prop) {
|
|||
|
|
result = result.getPropertyValue(prop);
|
|||
|
|
}
|
|||
|
|
} else {
|
|||
|
|
if (console) {
|
|||
|
|
var method = console.error ? 'error' : 'log';
|
|||
|
|
console[method].call(console, 'getComputedStyle returning null, its possible modernizr test results are inaccurate');
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
} else {
|
|||
|
|
result = !pseudo && elem.currentStyle && elem.currentStyle[prop];
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
return result;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
;
|
|||
|
|
|
|||
|
|
/**
|
|||
|
|
* nativeTestProps allows for us to use native feature detection functionality if available.
|
|||
|
|
* some prefixed form, or false, in the case of an unsupported rule
|
|||
|
|
*
|
|||
|
|
* @access private
|
|||
|
|
* @function nativeTestProps
|
|||
|
|
* @param {array} props - An array of property names
|
|||
|
|
* @param {string} value - A string representing the value we want to check via @supports
|
|||
|
|
* @returns {boolean|undefined} A boolean when @supports exists, undefined otherwise
|
|||
|
|
*/
|
|||
|
|
|
|||
|
|
// Accepts a list of property names and a single value
|
|||
|
|
// Returns `undefined` if native detection not available
|
|||
|
|
function nativeTestProps(props, value) {
|
|||
|
|
var i = props.length;
|
|||
|
|
// Start with the JS API: http://www.w3.org/TR/css3-conditional/#the-css-interface
|
|||
|
|
if ('CSS' in window && 'supports' in window.CSS) {
|
|||
|
|
// Try every prefixed variant of the property
|
|||
|
|
while (i--) {
|
|||
|
|
if (window.CSS.supports(domToCSS(props[i]), value)) {
|
|||
|
|
return true;
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
return false;
|
|||
|
|
}
|
|||
|
|
// Otherwise fall back to at-rule (for Opera 12.x)
|
|||
|
|
else if ('CSSSupportsRule' in window) {
|
|||
|
|
// Build a condition string for every prefixed variant
|
|||
|
|
var conditionText = [];
|
|||
|
|
while (i--) {
|
|||
|
|
conditionText.push('(' + domToCSS(props[i]) + ':' + value + ')');
|
|||
|
|
}
|
|||
|
|
conditionText = conditionText.join(' or ');
|
|||
|
|
return injectElementWithStyles('@supports (' + conditionText + ') { #modernizr { position: absolute; } }', function(node) {
|
|||
|
|
return computedStyle(node, null, 'position') == 'absolute';
|
|||
|
|
});
|
|||
|
|
}
|
|||
|
|
return undefined;
|
|||
|
|
}
|
|||
|
|
;
|
|||
|
|
|
|||
|
|
/**
|
|||
|
|
* Create our "modernizr" element that we do most feature tests on.
|
|||
|
|
*
|
|||
|
|
* @access private
|
|||
|
|
*/
|
|||
|
|
|
|||
|
|
var modElem = {
|
|||
|
|
elem: createElement('modernizr')
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
// Clean up this element
|
|||
|
|
Modernizr._q.push(function() {
|
|||
|
|
delete modElem.elem;
|
|||
|
|
});
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
var mStyle = {
|
|||
|
|
style: modElem.elem.style
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
// kill ref for gc, must happen before mod.elem is removed, so we unshift on to
|
|||
|
|
// the front of the queue.
|
|||
|
|
Modernizr._q.unshift(function() {
|
|||
|
|
delete mStyle.style;
|
|||
|
|
});
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
// testProps is a generic CSS / DOM property test.
|
|||
|
|
|
|||
|
|
// In testing support for a given CSS property, it's legit to test:
|
|||
|
|
// `elem.style[styleName] !== undefined`
|
|||
|
|
// If the property is supported it will return an empty string,
|
|||
|
|
// if unsupported it will return undefined.
|
|||
|
|
|
|||
|
|
// We'll take advantage of this quick test and skip setting a style
|
|||
|
|
// on our modernizr element, but instead just testing undefined vs
|
|||
|
|
// empty string.
|
|||
|
|
|
|||
|
|
// Property names can be provided in either camelCase or kebab-case.
|
|||
|
|
|
|||
|
|
function testProps(props, prefixed, value, skipValueTest) {
|
|||
|
|
skipValueTest = is(skipValueTest, 'undefined') ? false : skipValueTest;
|
|||
|
|
|
|||
|
|
// Try native detect first
|
|||
|
|
if (!is(value, 'undefined')) {
|
|||
|
|
var result = nativeTestProps(props, value);
|
|||
|
|
if (!is(result, 'undefined')) {
|
|||
|
|
return result;
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
// Otherwise do it properly
|
|||
|
|
var afterInit, i, propsLength, prop, before;
|
|||
|
|
|
|||
|
|
// If we don't have a style element, that means we're running async or after
|
|||
|
|
// the core tests, so we'll need to create our own elements to use
|
|||
|
|
|
|||
|
|
// inside of an SVG element, in certain browsers, the `style` element is only
|
|||
|
|
// defined for valid tags. Therefore, if `modernizr` does not have one, we
|
|||
|
|
// fall back to a less used element and hope for the best.
|
|||
|
|
// for strict XHTML browsers the hardly used samp element is used
|
|||
|
|
var elems = ['modernizr', 'tspan', 'samp'];
|
|||
|
|
while (!mStyle.style && elems.length) {
|
|||
|
|
afterInit = true;
|
|||
|
|
mStyle.modElem = createElement(elems.shift());
|
|||
|
|
mStyle.style = mStyle.modElem.style;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
// Delete the objects if we created them.
|
|||
|
|
function cleanElems() {
|
|||
|
|
if (afterInit) {
|
|||
|
|
delete mStyle.style;
|
|||
|
|
delete mStyle.modElem;
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
propsLength = props.length;
|
|||
|
|
for (i = 0; i < propsLength; i++) {
|
|||
|
|
prop = props[i];
|
|||
|
|
before = mStyle.style[prop];
|
|||
|
|
|
|||
|
|
if (contains(prop, '-')) {
|
|||
|
|
prop = cssToDOM(prop);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
if (mStyle.style[prop] !== undefined) {
|
|||
|
|
|
|||
|
|
// If value to test has been passed in, do a set-and-check test.
|
|||
|
|
// 0 (integer) is a valid property value, so check that `value` isn't
|
|||
|
|
// undefined, rather than just checking it's truthy.
|
|||
|
|
if (!skipValueTest && !is(value, 'undefined')) {
|
|||
|
|
|
|||
|
|
// Needs a try catch block because of old IE. This is slow, but will
|
|||
|
|
// be avoided in most cases because `skipValueTest` will be used.
|
|||
|
|
try {
|
|||
|
|
mStyle.style[prop] = value;
|
|||
|
|
} catch (e) {}
|
|||
|
|
|
|||
|
|
// If the property value has changed, we assume the value used is
|
|||
|
|
// supported. If `value` is empty string, it'll fail here (because
|
|||
|
|
// it hasn't changed), which matches how browsers have implemented
|
|||
|
|
// CSS.supports()
|
|||
|
|
if (mStyle.style[prop] != before) {
|
|||
|
|
cleanElems();
|
|||
|
|
return prefixed == 'pfx' ? prop : true;
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
// Otherwise just return true, or the property name if this is a
|
|||
|
|
// `prefixed()` call
|
|||
|
|
else {
|
|||
|
|
cleanElems();
|
|||
|
|
return prefixed == 'pfx' ? prop : true;
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
cleanElems();
|
|||
|
|
return false;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
;
|
|||
|
|
|
|||
|
|
/**
|
|||
|
|
* testPropsAll tests a list of DOM properties we want to check against.
|
|||
|
|
* We specify literally ALL possible (known and/or likely) properties on
|
|||
|
|
* the element including the non-vendor prefixed one, for forward-
|
|||
|
|
* compatibility.
|
|||
|
|
*
|
|||
|
|
* @access private
|
|||
|
|
* @function testPropsAll
|
|||
|
|
* @param {string} prop - A string of the property to test for
|
|||
|
|
* @param {string|object} [prefixed] - An object to check the prefixed properties on. Use a string to skip
|
|||
|
|
* @param {HTMLElement|SVGElement} [elem] - An element used to test the property and value against
|
|||
|
|
* @param {string} [value] - A string of a css value
|
|||
|
|
* @param {boolean} [skipValueTest] - An boolean representing if you want to test if value sticks when set
|
|||
|
|
* @returns {false|string} returns the string version of the property, or false if it is unsupported
|
|||
|
|
*/
|
|||
|
|
function testPropsAll(prop, prefixed, elem, value, skipValueTest) {
|
|||
|
|
|
|||
|
|
var ucProp = prop.charAt(0).toUpperCase() + prop.slice(1),
|
|||
|
|
props = (prop + ' ' + cssomPrefixes.join(ucProp + ' ') + ucProp).split(' ');
|
|||
|
|
|
|||
|
|
// did they call .prefixed('boxSizing') or are we just testing a prop?
|
|||
|
|
if (is(prefixed, 'string') || is(prefixed, 'undefined')) {
|
|||
|
|
return testProps(props, prefixed, value, skipValueTest);
|
|||
|
|
|
|||
|
|
// otherwise, they called .prefixed('requestAnimationFrame', window[, elem])
|
|||
|
|
} else {
|
|||
|
|
props = (prop + ' ' + (domPrefixes).join(ucProp + ' ') + ucProp).split(' ');
|
|||
|
|
return testDOMProps(props, prefixed, elem);
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
// Modernizr.testAllProps() investigates whether a given style property,
|
|||
|
|
// or any of its vendor-prefixed variants, is recognized
|
|||
|
|
//
|
|||
|
|
// Note that the property names must be provided in the camelCase variant.
|
|||
|
|
// Modernizr.testAllProps('boxSizing')
|
|||
|
|
ModernizrProto.testAllProps = testPropsAll;
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
/**
|
|||
|
|
* testAllProps determines whether a given CSS property is supported in the browser
|
|||
|
|
*
|
|||
|
|
* @memberof Modernizr
|
|||
|
|
* @name Modernizr.testAllProps
|
|||
|
|
* @optionName Modernizr.testAllProps()
|
|||
|
|
* @optionProp testAllProps
|
|||
|
|
* @access public
|
|||
|
|
* @function testAllProps
|
|||
|
|
* @param {string} prop - String naming the property to test (either camelCase or kebab-case)
|
|||
|
|
* @param {string} [value] - String of the value to test
|
|||
|
|
* @param {boolean} [skipValueTest=false] - Whether to skip testing that the value is supported when using non-native detection
|
|||
|
|
* @example
|
|||
|
|
*
|
|||
|
|
* testAllProps determines whether a given CSS property, in some prefixed form,
|
|||
|
|
* is supported by the browser.
|
|||
|
|
*
|
|||
|
|
* ```js
|
|||
|
|
* testAllProps('boxSizing') // true
|
|||
|
|
* ```
|
|||
|
|
*
|
|||
|
|
* It can optionally be given a CSS value in string form to test if a property
|
|||
|
|
* value is valid
|
|||
|
|
*
|
|||
|
|
* ```js
|
|||
|
|
* testAllProps('display', 'block') // true
|
|||
|
|
* testAllProps('display', 'penguin') // false
|
|||
|
|
* ```
|
|||
|
|
*
|
|||
|
|
* A boolean can be passed as a third parameter to skip the value check when
|
|||
|
|
* native detection (@supports) isn't available.
|
|||
|
|
*
|
|||
|
|
* ```js
|
|||
|
|
* testAllProps('shapeOutside', 'content-box', true);
|
|||
|
|
* ```
|
|||
|
|
*/
|
|||
|
|
|
|||
|
|
function testAllProps(prop, value, skipValueTest) {
|
|||
|
|
return testPropsAll(prop, undefined, undefined, value, skipValueTest);
|
|||
|
|
}
|
|||
|
|
ModernizrProto.testAllProps = testAllProps;
|
|||
|
|
|
|||
|
|
/*
|
|||
|
|
{
|
|||
|
|
"name": "CSS Animations",
|
|||
|
|
"property": "cssanimations",
|
|||
|
|
"caniuse": "css-animation",
|
|||
|
|
"polyfills": ["transformie", "csssandpaper"],
|
|||
|
|
"tags": ["css"],
|
|||
|
|
"warnings": ["Android < 4 will pass this test, but can only animate a single property at a time"],
|
|||
|
|
"notes": [{
|
|||
|
|
"name" : "Article: 'Dispelling the Android CSS animation myths'",
|
|||
|
|
"href": "https://goo.gl/OGw5Gm"
|
|||
|
|
}]
|
|||
|
|
}
|
|||
|
|
!*/
|
|||
|
|
/* DOC
|
|||
|
|
Detects whether or not elements can be animated using CSS
|
|||
|
|
*/
|
|||
|
|
|
|||
|
|
Modernizr.addTest('cssanimations', testAllProps('animationName', 'a', true));
|
|||
|
|
|
|||
|
|
/*
|
|||
|
|
{
|
|||
|
|
"name": "CSS Transforms",
|
|||
|
|
"property": "csstransforms",
|
|||
|
|
"caniuse": "transforms2d",
|
|||
|
|
"tags": ["css"]
|
|||
|
|
}
|
|||
|
|
!*/
|
|||
|
|
|
|||
|
|
Modernizr.addTest('csstransforms', function() {
|
|||
|
|
// Android < 3.0 is buggy, so we sniff and blacklist
|
|||
|
|
// http://git.io/hHzL7w
|
|||
|
|
return navigator.userAgent.indexOf('Android 2.') === -1 &&
|
|||
|
|
testAllProps('transform', 'scale(1)', true);
|
|||
|
|
});
|
|||
|
|
|
|||
|
|
|
|||
|
|
/**
|
|||
|
|
* prefixed returns the prefixed or nonprefixed property name variant of your input
|
|||
|
|
*
|
|||
|
|
* @memberof Modernizr
|
|||
|
|
* @name Modernizr.prefixed
|
|||
|
|
* @optionName Modernizr.prefixed()
|
|||
|
|
* @optionProp prefixed
|
|||
|
|
* @access public
|
|||
|
|
* @function prefixed
|
|||
|
|
* @param {string} prop - String name of the property to test for
|
|||
|
|
* @param {object} [obj] - An object to test for the prefixed properties on
|
|||
|
|
* @param {HTMLElement} [elem] - An element used to test specific properties against
|
|||
|
|
* @returns {string|false} The string representing the (possibly prefixed) valid
|
|||
|
|
* version of the property, or `false` when it is unsupported.
|
|||
|
|
* @example
|
|||
|
|
*
|
|||
|
|
* Modernizr.prefixed takes a string css value in the DOM style camelCase (as
|
|||
|
|
* opposed to the css style kebab-case) form and returns the (possibly prefixed)
|
|||
|
|
* version of that property that the browser actually supports.
|
|||
|
|
*
|
|||
|
|
* For example, in older Firefox...
|
|||
|
|
* ```js
|
|||
|
|
* prefixed('boxSizing')
|
|||
|
|
* ```
|
|||
|
|
* returns 'MozBoxSizing'
|
|||
|
|
*
|
|||
|
|
* In newer Firefox, as well as any other browser that support the unprefixed
|
|||
|
|
* version would simply return `boxSizing`. Any browser that does not support
|
|||
|
|
* the property at all, it will return `false`.
|
|||
|
|
*
|
|||
|
|
* By default, prefixed is checked against a DOM element. If you want to check
|
|||
|
|
* for a property on another object, just pass it as a second argument
|
|||
|
|
*
|
|||
|
|
* ```js
|
|||
|
|
* var rAF = prefixed('requestAnimationFrame', window);
|
|||
|
|
*
|
|||
|
|
* raf(function() {
|
|||
|
|
* renderFunction();
|
|||
|
|
* })
|
|||
|
|
* ```
|
|||
|
|
*
|
|||
|
|
* Note that this will return _the actual function_ - not the name of the function.
|
|||
|
|
* If you need the actual name of the property, pass in `false` as a third argument
|
|||
|
|
*
|
|||
|
|
* ```js
|
|||
|
|
* var rAFProp = prefixed('requestAnimationFrame', window, false);
|
|||
|
|
*
|
|||
|
|
* rafProp === 'WebkitRequestAnimationFrame' // in older webkit
|
|||
|
|
* ```
|
|||
|
|
*
|
|||
|
|
* One common use case for prefixed is if you're trying to determine which transition
|
|||
|
|
* end event to bind to, you might do something like...
|
|||
|
|
* ```js
|
|||
|
|
* var transEndEventNames = {
|
|||
|
|
* 'WebkitTransition' : 'webkitTransitionEnd', * Saf 6, Android Browser
|
|||
|
|
* 'MozTransition' : 'transitionend', * only for FF < 15
|
|||
|
|
* 'transition' : 'transitionend' * IE10, Opera, Chrome, FF 15+, Saf 7+
|
|||
|
|
* };
|
|||
|
|
*
|
|||
|
|
* var transEndEventName = transEndEventNames[ Modernizr.prefixed('transition') ];
|
|||
|
|
* ```
|
|||
|
|
*
|
|||
|
|
* If you want a similar lookup, but in kebab-case, you can use [prefixedCSS](#modernizr-prefixedcss).
|
|||
|
|
*/
|
|||
|
|
|
|||
|
|
var prefixed = ModernizrProto.prefixed = function(prop, obj, elem) {
|
|||
|
|
if (prop.indexOf('@') === 0) {
|
|||
|
|
return atRule(prop);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
if (prop.indexOf('-') != -1) {
|
|||
|
|
// Convert kebab-case to camelCase
|
|||
|
|
prop = cssToDOM(prop);
|
|||
|
|
}
|
|||
|
|
if (!obj) {
|
|||
|
|
return testPropsAll(prop, 'pfx');
|
|||
|
|
} else {
|
|||
|
|
// Testing DOM property e.g. Modernizr.prefixed('requestAnimationFrame', window) // 'mozRequestAnimationFrame'
|
|||
|
|
return testPropsAll(prop, obj, elem);
|
|||
|
|
}
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
|
|||
|
|
/*
|
|||
|
|
{
|
|||
|
|
"name": "requestAnimationFrame",
|
|||
|
|
"property": "requestanimationframe",
|
|||
|
|
"aliases": ["raf"],
|
|||
|
|
"caniuse": "requestanimationframe",
|
|||
|
|
"tags": ["animation"],
|
|||
|
|
"authors": ["Addy Osmani"],
|
|||
|
|
"notes": [{
|
|||
|
|
"name": "W3C spec",
|
|||
|
|
"href": "https://www.w3.org/TR/animation-timing/"
|
|||
|
|
}],
|
|||
|
|
"polyfills": ["raf"]
|
|||
|
|
}
|
|||
|
|
!*/
|
|||
|
|
/* DOC
|
|||
|
|
Detects support for the `window.requestAnimationFrame` API, for offloading animation repainting to the browser for optimized performance.
|
|||
|
|
*/
|
|||
|
|
|
|||
|
|
Modernizr.addTest('requestanimationframe', !!prefixed('requestAnimationFrame', window), {aliases: ['raf']});
|
|||
|
|
|
|||
|
|
/*
|
|||
|
|
{
|
|||
|
|
"name": "matchMedia",
|
|||
|
|
"property": "matchmedia",
|
|||
|
|
"caniuse" : "matchmedia",
|
|||
|
|
"tags": ["matchmedia"],
|
|||
|
|
"authors": ["Alberto Elias"],
|
|||
|
|
"notes": [{
|
|||
|
|
"name": "W3C CSSOM View Module",
|
|||
|
|
"href": "https://drafts.csswg.org/cssom-view/#the-mediaquerylist-interface"
|
|||
|
|
}, {
|
|||
|
|
"name": "MDN documentation",
|
|||
|
|
"href": "https://developer.mozilla.org/en-US/docs/Web/API/Window.matchMedia"
|
|||
|
|
}],
|
|||
|
|
"polyfills": ["matchmediajs"]
|
|||
|
|
}
|
|||
|
|
!*/
|
|||
|
|
/* DOC
|
|||
|
|
|
|||
|
|
Detects support for matchMedia.
|
|||
|
|
|
|||
|
|
*/
|
|||
|
|
|
|||
|
|
Modernizr.addTest('matchmedia', !!prefixed('matchMedia', window));
|
|||
|
|
|
|||
|
|
|
|||
|
|
// Run each test
|
|||
|
|
testRunner();
|
|||
|
|
|
|||
|
|
delete ModernizrProto.addTest;
|
|||
|
|
delete ModernizrProto.addAsyncTest;
|
|||
|
|
|
|||
|
|
// Run the things that are supposed to run after the tests
|
|||
|
|
for (var i = 0; i < Modernizr._q.length; i++) {
|
|||
|
|
Modernizr._q[i]();
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
// Leak Modernizr namespace
|
|||
|
|
window.Modernizr = Modernizr;
|
|||
|
|
|
|||
|
|
|
|||
|
|
;
|
|||
|
|
|
|||
|
|
})(window, document);
|