modernizr/src/testPropsAll.js

Modernizr is a JavaScript library that detects HTML5 and CSS3 features in the user’s browser.

define(['ModernizrProto', 'cssomPrefixes', 'is', 'testProps', 'domPrefixes', 'testDOMProps'], function(ModernizrProto, cssomPrefixes, is, testProps, domPrefixes, testDOMProps) {
  /**
   * 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;

  return testPropsAll;
});