diff options
author | Florian Dold <florian.dold@gmail.com> | 2018-09-20 02:56:13 +0200 |
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committer | Florian Dold <florian.dold@gmail.com> | 2018-09-20 02:56:13 +0200 |
commit | bbff7403fbf46f9ad92240ac213df8d30ef31b64 (patch) | |
tree | c58400ec5124da1c7d56b01aea83309f80a56c3b /node_modules/fbjs/lib/getScrollPosition.js.flow | |
parent | 003fb34971cf63466184351b4db5f7c67df4f444 (diff) |
update packages
Diffstat (limited to 'node_modules/fbjs/lib/getScrollPosition.js.flow')
-rw-r--r-- | node_modules/fbjs/lib/getScrollPosition.js.flow | 46 |
1 files changed, 0 insertions, 46 deletions
diff --git a/node_modules/fbjs/lib/getScrollPosition.js.flow b/node_modules/fbjs/lib/getScrollPosition.js.flow deleted file mode 100644 index 9740f69db..000000000 --- a/node_modules/fbjs/lib/getScrollPosition.js.flow +++ /dev/null @@ -1,46 +0,0 @@ -/** - * Copyright (c) 2013-present, Facebook, Inc. - * - * This source code is licensed under the MIT license found in the - * LICENSE file in the root directory of this source tree. - * - * @providesModule getScrollPosition - * @typechecks - */ - -'use strict'; - -const getDocumentScrollElement = require('./getDocumentScrollElement'); -const getUnboundedScrollPosition = require('./getUnboundedScrollPosition'); - -/** - * Gets the scroll position of the supplied element or window. - * - * The return values are bounded. This means that if the scroll position is - * negative or exceeds the element boundaries (which is possible using inertial - * scrolling), you will get zero or the maximum scroll position, respectively. - * - * If you need the unbound scroll position, use `getUnboundedScrollPosition`. - * - * @param {DOMWindow|DOMElement} scrollable - * @return {object} Map with `x` and `y` keys. - */ -function getScrollPosition(scrollable) { - const documentScrollElement = getDocumentScrollElement(scrollable.ownerDocument || scrollable.document); - if (scrollable.Window && scrollable instanceof scrollable.Window) { - scrollable = documentScrollElement; - } - const scrollPosition = getUnboundedScrollPosition(scrollable); - - const viewport = scrollable === documentScrollElement ? scrollable.ownerDocument.documentElement : scrollable; - - const xMax = scrollable.scrollWidth - viewport.clientWidth; - const yMax = scrollable.scrollHeight - viewport.clientHeight; - - scrollPosition.x = Math.max(0, Math.min(scrollPosition.x, xMax)); - scrollPosition.y = Math.max(0, Math.min(scrollPosition.y, yMax)); - - return scrollPosition; -} - -module.exports = getScrollPosition;
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