mirror of
https://github.com/squidfunk/mkdocs-material.git
synced 2024-06-14 11:52:32 +03:00
1146 lines
36 KiB
JavaScript
1146 lines
36 KiB
JavaScript
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/*!
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* modernizr v3.3.1
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* Build http://modernizr.com/download?-csstransforms3d-addtest-setclasses-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: '3.3.1',
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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': true
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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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var classes = [];
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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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/**
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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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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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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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// 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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// 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
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featureNameSplit = featureName.split('.');
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if (featureNameSplit.length === 1) {
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Modernizr[featureNameSplit[0]] = result;
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} else {
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// cast to a Boolean, if not one already
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/* jshint -W053 */
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if (Modernizr[featureNameSplit[0]] && !(Modernizr[featureNameSplit[0]] instanceof Boolean)) {
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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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}
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classes.push((result ? '' : 'no-') + featureNameSplit.join('-'));
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}
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}
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}
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}
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;
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/**
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* docElement is a convenience wrapper to grab the root element of the document
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*
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* @access private
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* @returns {HTMLElement|SVGElement} The root element of the document
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*/
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var docElement = document.documentElement;
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/**
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* A convenience helper to check if the document we are running in is an SVG document
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*
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* @access private
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* @returns {boolean}
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*/
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var isSVG = docElement.nodeName.toLowerCase() === 'svg';
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/**
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* setClasses takes an array of class names and adds them to the root element
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*
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* @access private
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* @function setClasses
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* @param {string[]} classes - Array of class names
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*/
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// Pass in an and array of class names, e.g.:
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// ['no-webp', 'borderradius', ...]
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function setClasses(classes) {
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var className = docElement.className;
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var classPrefix = Modernizr._config.classPrefix || '';
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if (isSVG) {
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className = className.baseVal;
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}
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// Change `no-js` to `js` (independently of the `enableClasses` option)
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// Handle classPrefix on this too
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if (Modernizr._config.enableJSClass) {
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var reJS = new RegExp('(^|\\s)' + classPrefix + 'no-js(\\s|$)');
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className = className.replace(reJS, '$1' + classPrefix + 'js$2');
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}
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if (Modernizr._config.enableClasses) {
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// Add the new classes
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className += ' ' + classPrefix + classes.join(' ' + classPrefix);
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isSVG ? docElement.className.baseVal = className : docElement.className = className;
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}
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}
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;
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/**
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* hasOwnProp is a shim for hasOwnProperty that is needed for Safari 2.0 support
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*
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* @author kangax
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* @access private
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* @function hasOwnProp
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* @param {object} object - The object to check for a property
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* @param {string} property - The property to check for
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* @returns {boolean}
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*/
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// hasOwnProperty shim by kangax needed for Safari 2.0 support
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var hasOwnProp;
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(function() {
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var _hasOwnProperty = ({}).hasOwnProperty;
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/* istanbul ignore else */
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/* we have no way of testing IE 5.5 or safari 2,
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* so just assume the else gets hit */
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if (!is(_hasOwnProperty, 'undefined') && !is(_hasOwnProperty.call, 'undefined')) {
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hasOwnProp = function(object, property) {
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return _hasOwnProperty.call(object, property);
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};
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}
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else {
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hasOwnProp = function(object, property) { /* yes, this can give false positives/negatives, but most of the time we don't care about those */
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return ((property in object) && is(object.constructor.prototype[property], 'undefined'));
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};
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}
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})();
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// _l tracks listeners for async tests, as well as tests that execute after the initial run
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ModernizrProto._l = {};
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/**
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* Modernizr.on is a way to listen for the completion of async tests. Being
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* asynchronous, they may not finish before your scripts run. As a result you
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* will get a possibly false negative `undefined` value.
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*
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* @memberof Modernizr
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* @name Modernizr.on
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* @access public
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* @function on
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* @param {string} feature - String name of the feature detect
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* @param {function} cb - Callback function returning a Boolean - true if feature is supported, false if not
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* @example
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*
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* ```js
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* Modernizr.on('flash', function( result ) {
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* if (result) {
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* // the browser has flash
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* } else {
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* // the browser does not have flash
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* }
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* });
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* ```
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*/
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ModernizrProto.on = function(feature, cb) {
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// Create the list of listeners if it doesn't exist
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if (!this._l[feature]) {
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this._l[feature] = [];
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}
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// Push this test on to the listener list
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this._l[feature].push(cb);
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// If it's already been resolved, trigger it on next tick
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if (Modernizr.hasOwnProperty(feature)) {
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// Next Tick
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setTimeout(function() {
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Modernizr._trigger(feature, Modernizr[feature]);
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}, 0);
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}
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};
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/**
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* _trigger is the private function used to signal test completion and run any
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* callbacks registered through [Modernizr.on](#modernizr-on)
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*
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* @memberof Modernizr
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* @name Modernizr._trigger
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* @access private
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* @function _trigger
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* @param {string} feature - string name of the feature detect
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* @param {function|boolean} [res] - A feature detection function, or the boolean =
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* result of a feature detection function
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*/
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ModernizrProto._trigger = function(feature, res) {
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if (!this._l[feature]) {
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return;
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}
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var cbs = this._l[feature];
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// Force async
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setTimeout(function() {
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var i, cb;
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for (i = 0; i < cbs.length; i++) {
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cb = cbs[i];
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cb(res);
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}
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}, 0);
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// Don't trigger these again
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delete this._l[feature];
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};
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/**
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* addTest allows you to define your own feature detects that are not currently
|
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* included in Modernizr (under the covers it's the exact same code Modernizr
|
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* uses for its own [feature detections](https://github.com/Modernizr/Modernizr/tree/master/feature-detects)). Just like the offical detects, the result
|
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* will be added onto the Modernizr object, as well as an appropriate className set on
|
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* the html element when configured to do so
|
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*
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* @memberof Modernizr
|
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* @name Modernizr.addTest
|
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* @optionName Modernizr.addTest()
|
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* @optionProp addTest
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* @access public
|
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* @function addTest
|
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* @param {string|object} feature - The string name of the feature detect, or an
|
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* object of feature detect names and test
|
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* @param {function|boolean} test - Function returning true if feature is supported,
|
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* false if not. Otherwise a boolean representing the results of a feature detection
|
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* @example
|
||
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*
|
||
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* The most common way of creating your own feature detects is by calling
|
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* `Modernizr.addTest` with a string (preferably just lowercase, without any
|
||
|
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* punctuation), and a function you want executed that will return a boolean result
|
||
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*
|
||
|
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* ```js
|
||
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* Modernizr.addTest('itsTuesday', function() {
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* var d = new Date();
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* return d.getDay() === 2;
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* });
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* ```
|
||
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*
|
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* When the above is run, it will set Modernizr.itstuesday to `true` when it is tuesday,
|
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* and to `false` every other day of the week. One thing to notice is that the names of
|
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* feature detect functions are always lowercased when added to the Modernizr object. That
|
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* means that `Modernizr.itsTuesday` will not exist, but `Modernizr.itstuesday` will.
|
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*
|
||
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*
|
||
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* Since we only look at the returned value from any feature detection function,
|
||
|
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* you do not need to actually use a function. For simple detections, just passing
|
||
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* in a statement that will return a boolean value works just fine.
|
||
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*
|
||
|
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* ```js
|
||
|
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* Modernizr.addTest('hasJquery', 'jQuery' in window);
|
||
|
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* ```
|
||
|
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*
|
||
|
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* Just like before, when the above runs `Modernizr.hasjquery` will be true if
|
||
|
|
* jQuery has been included on the page. Not using a function saves a small amount
|
||
|
|
* of overhead for the browser, as well as making your code much more readable.
|
||
|
|
*
|
||
|
|
* Finally, you also have the ability to pass in an object of feature names and
|
||
|
|
* their tests. This is handy if you want to add multiple detections in one go.
|
||
|
|
* The keys should always be a string, and the value can be either a boolean or
|
||
|
|
* function that returns a boolean.
|
||
|
|
*
|
||
|
|
* ```js
|
||
|
|
* var detects = {
|
||
|
|
* 'hasjquery': 'jQuery' in window,
|
||
|
|
* 'itstuesday': function() {
|
||
|
|
* var d = new Date();
|
||
|
|
* return d.getDay() === 2;
|
||
|
|
* }
|
||
|
|
* }
|
||
|
|
*
|
||
|
|
* Modernizr.addTest(detects);
|
||
|
|
* ```
|
||
|
|
*
|
||
|
|
* There is really no difference between the first methods and this one, it is
|
||
|
|
* just a convenience to let you write more readable code.
|
||
|
|
*/
|
||
|
|
|
||
|
|
function addTest(feature, test) {
|
||
|
|
|
||
|
|
if (typeof feature == 'object') {
|
||
|
|
for (var key in feature) {
|
||
|
|
if (hasOwnProp(feature, key)) {
|
||
|
|
addTest(key, feature[ key ]);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
|
||
|
|
feature = feature.toLowerCase();
|
||
|
|
var featureNameSplit = feature.split('.');
|
||
|
|
var last = Modernizr[featureNameSplit[0]];
|
||
|
|
|
||
|
|
// Again, we don't check for parent test existence. Get that right, though.
|
||
|
|
if (featureNameSplit.length == 2) {
|
||
|
|
last = last[featureNameSplit[1]];
|
||
|
|
}
|
||
|
|
|
||
|
|
if (typeof last != 'undefined') {
|
||
|
|
// we're going to quit if you're trying to overwrite an existing test
|
||
|
|
// if we were to allow it, we'd do this:
|
||
|
|
// var re = new RegExp("\\b(no-)?" + feature + "\\b");
|
||
|
|
// docElement.className = docElement.className.replace( re, '' );
|
||
|
|
// but, no rly, stuff 'em.
|
||
|
|
return Modernizr;
|
||
|
|
}
|
||
|
|
|
||
|
|
test = typeof test == 'function' ? test() : test;
|
||
|
|
|
||
|
|
// Set the value (this is the magic, right here).
|
||
|
|
if (featureNameSplit.length == 1) {
|
||
|
|
Modernizr[featureNameSplit[0]] = test;
|
||
|
|
} else {
|
||
|
|
// cast to a Boolean, if not one already
|
||
|
|
/* jshint -W053 */
|
||
|
|
if (Modernizr[featureNameSplit[0]] && !(Modernizr[featureNameSplit[0]] instanceof Boolean)) {
|
||
|
|
Modernizr[featureNameSplit[0]] = new Boolean(Modernizr[featureNameSplit[0]]);
|
||
|
|
}
|
||
|
|
|
||
|
|
Modernizr[featureNameSplit[0]][featureNameSplit[1]] = test;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Set a single class (either `feature` or `no-feature`)
|
||
|
|
/* jshint -W041 */
|
||
|
|
setClasses([(!!test && test != false ? '' : 'no-') + featureNameSplit.join('-')]);
|
||
|
|
/* jshint +W041 */
|
||
|
|
|
||
|
|
// Trigger the event
|
||
|
|
Modernizr._trigger(feature, test);
|
||
|
|
}
|
||
|
|
|
||
|
|
return Modernizr; // allow chaining.
|
||
|
|
}
|
||
|
|
|
||
|
|
// After all the tests are run, add self to the Modernizr prototype
|
||
|
|
Modernizr._q.push(function() {
|
||
|
|
ModernizrProto.addTest = addTest;
|
||
|
|
});
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
/**
|
||
|
|
* If the browsers follow the spec, then they would expose vendor-specific style as:
|
||
|
|
* elem.style.WebkitBorderRadius
|
||
|
|
* instead of something like the following, which would be 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;
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
/**
|
||
|
|
* 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);
|
||
|
|
}
|
||
|
|
|
||
|
|
;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* 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);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* 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;
|
||
|
|
});
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
/**
|
||
|
|
* 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+
|
||
|
|
docElement.offsetHeight;
|
||
|
|
} else {
|
||
|
|
div.parentNode.removeChild(div);
|
||
|
|
}
|
||
|
|
|
||
|
|
return !!ret;
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* 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-');
|
||
|
|
}
|
||
|
|
;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* 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 getComputedStyle(node, null).position == 'absolute';
|
||
|
|
});
|
||
|
|
}
|
||
|
|
return undefined;
|
||
|
|
}
|
||
|
|
;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* 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(/^-/, '');
|
||
|
|
}
|
||
|
|
;
|
||
|
|
|
||
|
|
// 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.
|
||
|
|
var elems = ['modernizr', 'tspan'];
|
||
|
|
while (!mStyle.style) {
|
||
|
|
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;
|
||
|
|
}
|
||
|
|
|
||
|
|
;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* 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
|
||
|
|
*/
|
||
|
|
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;
|
||
|
|
}
|
||
|
|
|
||
|
|
;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* 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
|
||
|
|
*/
|
||
|
|
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;
|
||
|
|
|
||
|
|
|
||
|
|
/**
|
||
|
|
* 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": "CSS Supports",
|
||
|
|
"property": "supports",
|
||
|
|
"caniuse": "css-featurequeries",
|
||
|
|
"tags": ["css"],
|
||
|
|
"builderAliases": ["css_supports"],
|
||
|
|
"notes": [{
|
||
|
|
"name": "W3 Spec",
|
||
|
|
"href": "http://dev.w3.org/csswg/css3-conditional/#at-supports"
|
||
|
|
},{
|
||
|
|
"name": "Related Github Issue",
|
||
|
|
"href": "github.com/Modernizr/Modernizr/issues/648"
|
||
|
|
},{
|
||
|
|
"name": "W3 Info",
|
||
|
|
"href": "http://dev.w3.org/csswg/css3-conditional/#the-csssupportsrule-interface"
|
||
|
|
}]
|
||
|
|
}
|
||
|
|
!*/
|
||
|
|
|
||
|
|
var newSyntax = 'CSS' in window && 'supports' in window.CSS;
|
||
|
|
var oldSyntax = 'supportsCSS' in window;
|
||
|
|
Modernizr.addTest('supports', newSyntax || oldSyntax);
|
||
|
|
|
||
|
|
/*!
|
||
|
|
{
|
||
|
|
"name": "CSS Transforms 3D",
|
||
|
|
"property": "csstransforms3d",
|
||
|
|
"caniuse": "transforms3d",
|
||
|
|
"tags": ["css"],
|
||
|
|
"warnings": [
|
||
|
|
"Chrome may occassionally fail this test on some systems; more info: https://code.google.com/p/chromium/issues/detail?id=129004"
|
||
|
|
]
|
||
|
|
}
|
||
|
|
!*/
|
||
|
|
|
||
|
|
Modernizr.addTest('csstransforms3d', function() {
|
||
|
|
var ret = !!testAllProps('perspective', '1px', true);
|
||
|
|
var usePrefix = Modernizr._config.usePrefixes;
|
||
|
|
|
||
|
|
// Webkit's 3D transforms are passed off to the browser's own graphics renderer.
|
||
|
|
// It works fine in Safari on Leopard and Snow Leopard, but not in Chrome in
|
||
|
|
// some conditions. As a result, Webkit typically recognizes the syntax but
|
||
|
|
// will sometimes throw a false positive, thus we must do a more thorough check:
|
||
|
|
if (ret && (!usePrefix || 'webkitPerspective' in docElement.style)) {
|
||
|
|
var mq;
|
||
|
|
var defaultStyle = '#modernizr{width:0;height:0}';
|
||
|
|
// Use CSS Conditional Rules if available
|
||
|
|
if (Modernizr.supports) {
|
||
|
|
mq = '@supports (perspective: 1px)';
|
||
|
|
} else {
|
||
|
|
// Otherwise, Webkit allows this media query to succeed only if the feature is enabled.
|
||
|
|
// `@media (transform-3d),(-webkit-transform-3d){ ... }`
|
||
|
|
mq = '@media (transform-3d)';
|
||
|
|
if (usePrefix) {
|
||
|
|
mq += ',(-webkit-transform-3d)';
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
mq += '{#modernizr{width:7px;height:18px;margin:0;padding:0;border:0}}';
|
||
|
|
|
||
|
|
testStyles(defaultStyle + mq, function(elem) {
|
||
|
|
ret = elem.offsetWidth === 7 && elem.offsetHeight === 18;
|
||
|
|
});
|
||
|
|
}
|
||
|
|
|
||
|
|
return ret;
|
||
|
|
});
|
||
|
|
|
||
|
|
|
||
|
|
// Run each test
|
||
|
|
testRunner();
|
||
|
|
|
||
|
|
// Remove the "no-js" class if it exists
|
||
|
|
setClasses(classes);
|
||
|
|
|
||
|
|
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;
|
||
|
|
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})(window, document);
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