| 1 | /**
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| 2 | @license
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| 3 | Copyright (c) 2020 The Polymer Project Authors. All rights reserved.
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| 4 | This code may only be used under the BSD style license found at
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| 5 | http://polymer.github.io/LICENSE.txt The complete set of authors may be found at
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| 6 | http://polymer.github.io/AUTHORS.txt The complete set of contributors may be
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| 7 | found at http://polymer.github.io/CONTRIBUTORS.txt Code distributed by Google as
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| 8 | part of the polymer project is also subject to an additional IP rights grant
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| 9 | found at http://polymer.github.io/PATENTS.txt
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| 10 | */
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| 11 | const Element_prototype = window.Element.prototype;
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| 12 | const HTMLElement_prototype = window.HTMLElement.prototype;
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| 13 | const SVGElement_prototype = window['SVGElement'].prototype;
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| 14 | // Thanks to @justinfagnani for finding this:
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| 15 | //
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| 16 | // In IE11, `classList` is only supported on `HTMLElement` instances: the
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| 17 | // descriptor is an own property of `HTMLElement.prototype` and is an accessor
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| 18 | // descriptor with `set` as `undefined` and no `get`. However, it seems to be
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| 19 | // implemented generically enough such that copying it to something in the
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| 20 | // prototype chain of `SVGElement` correctly adds support for `classList` (as
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| 21 | // far as `DOMTokenList` implemented in IE11).
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| 22 | if (HTMLElement_prototype.hasOwnProperty('classList') &&
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| 23 | !Element_prototype.hasOwnProperty('classList') &&
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| 24 | !SVGElement_prototype.hasOwnProperty('classList')) {
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| 25 | Object.defineProperty(Element_prototype, 'classList', Object.getOwnPropertyDescriptor(HTMLElement_prototype, 'classList'));
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| 26 | }
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| 27 | //# sourceMappingURL=svg-element-class-list.js.map |
| \ | No newline at end of file |