Initial commit

node_modules/react-overlays/lib/utils/isOverflowing.js

@@ -0,0 +1,39 @@
+'use strict';
+
+exports.__esModule = true;
+exports.default = isOverflowing;
+
+var _isWindow = require('dom-helpers/query/isWindow');
+
+var _isWindow2 = _interopRequireDefault(_isWindow);
+
+var _ownerDocument = require('dom-helpers/ownerDocument');
+
+var _ownerDocument2 = _interopRequireDefault(_ownerDocument);
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+function isBody(node) {
+  return node && node.tagName.toLowerCase() === 'body';
+}
+
+function bodyIsOverflowing(node) {
+  var doc = (0, _ownerDocument2.default)(node);
+  var win = (0, _isWindow2.default)(doc);
+  var fullWidth = win.innerWidth;
+
+  // Support: ie8, no innerWidth
+  if (!fullWidth) {
+    var documentElementRect = doc.documentElement.getBoundingClientRect();
+    fullWidth = documentElementRect.right - Math.abs(documentElementRect.left);
+  }
+
+  return doc.body.clientWidth < fullWidth;
+}
+
+function isOverflowing(container) {
+  var win = (0, _isWindow2.default)(container);
+
+  return win || isBody(container) ? bodyIsOverflowing(container) : container.scrollHeight > container.clientHeight;
+}
+module.exports = exports['default'];