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pasketti
327
node_modules/react-overlays/lib/Affix.js
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327
node_modules/react-overlays/lib/Affix.js
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'use strict';
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exports.__esModule = true;
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var _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; };
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var _classnames = require('classnames');
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var _classnames2 = _interopRequireDefault(_classnames);
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var _height = require('dom-helpers/query/height');
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var _height2 = _interopRequireDefault(_height);
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var _offset = require('dom-helpers/query/offset');
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var _offset2 = _interopRequireDefault(_offset);
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var _offsetParent = require('dom-helpers/query/offsetParent');
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var _offsetParent2 = _interopRequireDefault(_offsetParent);
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var _scrollTop = require('dom-helpers/query/scrollTop');
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var _scrollTop2 = _interopRequireDefault(_scrollTop);
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var _requestAnimationFrame = require('dom-helpers/util/requestAnimationFrame');
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var _requestAnimationFrame2 = _interopRequireDefault(_requestAnimationFrame);
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var _propTypes = require('prop-types');
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var _propTypes2 = _interopRequireDefault(_propTypes);
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var _react = require('react');
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var _react2 = _interopRequireDefault(_react);
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var _reactDom = require('react-dom');
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var _reactDom2 = _interopRequireDefault(_reactDom);
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var _addEventListener = require('./utils/addEventListener');
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var _addEventListener2 = _interopRequireDefault(_addEventListener);
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var _getDocumentHeight = require('./utils/getDocumentHeight');
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var _getDocumentHeight2 = _interopRequireDefault(_getDocumentHeight);
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var _ownerDocument = require('./utils/ownerDocument');
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var _ownerDocument2 = _interopRequireDefault(_ownerDocument);
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var _ownerWindow = require('./utils/ownerWindow');
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var _ownerWindow2 = _interopRequireDefault(_ownerWindow);
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function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
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function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
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function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }
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function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }
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/**
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* The `<Affix/>` component toggles `position: fixed;` on and off, emulating
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* the effect found with `position: sticky;`.
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*/
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var Affix = function (_React$Component) {
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_inherits(Affix, _React$Component);
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function Affix(props, context) {
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_classCallCheck(this, Affix);
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var _this = _possibleConstructorReturn(this, _React$Component.call(this, props, context));
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_this.onWindowScroll = function () {
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_this.onUpdate();
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};
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_this.onDocumentClick = function () {
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(0, _requestAnimationFrame2.default)(function () {
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return _this.onUpdate();
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});
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};
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_this.onUpdate = function () {
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if (!_this._isMounted) {
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return;
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}
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var _this$props = _this.props,
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offsetTop = _this$props.offsetTop,
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viewportOffsetTop = _this$props.viewportOffsetTop;
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var scrollTop = (0, _scrollTop2.default)((0, _ownerWindow2.default)(_this));
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var positionTopMin = scrollTop + (viewportOffsetTop || 0);
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if (positionTopMin <= offsetTop) {
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_this.updateState('top', null, null);
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return;
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}
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if (positionTopMin > _this.getPositionTopMax()) {
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if (_this.state.affixed === 'bottom') {
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_this.updateStateAtBottom();
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} else {
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// Setting position away from `fixed` can change the offset parent of
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// the affix, so we can't calculate the correct position until after
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// we've updated its position.
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_this.setState({
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affixed: 'bottom',
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position: 'absolute',
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top: null
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}, function () {
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if (!_this._isMounted) {
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return;
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}
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_this.updateStateAtBottom();
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});
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}
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return;
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}
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_this.updateState('affix', 'fixed', viewportOffsetTop);
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};
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_this.getPositionTopMax = function () {
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var documentHeight = (0, _getDocumentHeight2.default)((0, _ownerDocument2.default)(_this));
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var height = (0, _height2.default)(_reactDom2.default.findDOMNode(_this));
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return documentHeight - height - _this.props.offsetBottom;
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};
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_this.updateState = function (affixed, position, top) {
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if (affixed === _this.state.affixed && position === _this.state.position && top === _this.state.top) {
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return;
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}
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var upperName = affixed === 'affix' ? '' : affixed.charAt(0).toUpperCase() + affixed.substr(1);
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if (_this.props['onAffix' + upperName]) {
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_this.props['onAffix' + upperName]();
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}
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_this.setState({ affixed: affixed, position: position, top: top }, function () {
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if (_this.props['onAffixed' + upperName]) {
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_this.props['onAffixed' + upperName]();
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}
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});
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};
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_this.updateStateAtBottom = function () {
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var positionTopMax = _this.getPositionTopMax();
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var offsetParent = (0, _offsetParent2.default)(_reactDom2.default.findDOMNode(_this));
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var parentTop = (0, _offset2.default)(offsetParent).top;
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_this.updateState('bottom', 'absolute', positionTopMax - parentTop);
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};
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_this.state = {
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affixed: 'top',
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position: null,
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top: null
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};
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_this._needPositionUpdate = false;
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return _this;
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}
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Affix.prototype.componentDidMount = function componentDidMount() {
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var _this2 = this;
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this._isMounted = true;
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this._windowScrollListener = (0, _addEventListener2.default)((0, _ownerWindow2.default)(this), 'scroll', function () {
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return _this2.onWindowScroll();
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});
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this._documentClickListener = (0, _addEventListener2.default)((0, _ownerDocument2.default)(this), 'click', function () {
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return _this2.onDocumentClick();
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});
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this.onUpdate();
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};
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Affix.prototype.componentWillReceiveProps = function componentWillReceiveProps() {
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this._needPositionUpdate = true;
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};
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Affix.prototype.componentDidUpdate = function componentDidUpdate() {
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if (this._needPositionUpdate) {
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this._needPositionUpdate = false;
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this.onUpdate();
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}
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};
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Affix.prototype.componentWillUnmount = function componentWillUnmount() {
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this._isMounted = false;
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if (this._windowScrollListener) {
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this._windowScrollListener.remove();
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}
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if (this._documentClickListener) {
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this._documentClickListener.remove();
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}
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};
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Affix.prototype.render = function render() {
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var child = _react2.default.Children.only(this.props.children);
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var _child$props = child.props,
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className = _child$props.className,
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style = _child$props.style;
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var _state = this.state,
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affixed = _state.affixed,
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position = _state.position,
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top = _state.top;
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var positionStyle = { position: position, top: top };
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var affixClassName = void 0;
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var affixStyle = void 0;
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if (affixed === 'top') {
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affixClassName = this.props.topClassName;
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affixStyle = this.props.topStyle;
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} else if (affixed === 'bottom') {
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affixClassName = this.props.bottomClassName;
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affixStyle = this.props.bottomStyle;
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} else {
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affixClassName = this.props.affixClassName;
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affixStyle = this.props.affixStyle;
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}
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return _react2.default.cloneElement(child, {
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className: (0, _classnames2.default)(affixClassName, className),
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style: _extends({}, positionStyle, affixStyle, style)
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});
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};
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return Affix;
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}(_react2.default.Component);
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Affix.propTypes = {
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/**
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* Pixels to offset from top of screen when calculating position
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*/
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offsetTop: _propTypes2.default.number,
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/**
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* When affixed, pixels to offset from top of viewport
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*/
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viewportOffsetTop: _propTypes2.default.number,
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/**
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* Pixels to offset from bottom of screen when calculating position
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*/
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offsetBottom: _propTypes2.default.number,
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/**
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* CSS class or classes to apply when at top
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*/
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topClassName: _propTypes2.default.string,
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/**
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* Style to apply when at top
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*/
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topStyle: _propTypes2.default.object,
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/**
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* CSS class or classes to apply when affixed
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*/
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affixClassName: _propTypes2.default.string,
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/**
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* Style to apply when affixed
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*/
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affixStyle: _propTypes2.default.object,
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/**
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* CSS class or classes to apply when at bottom
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*/
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bottomClassName: _propTypes2.default.string,
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/**
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* Style to apply when at bottom
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*/
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bottomStyle: _propTypes2.default.object,
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/**
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* Callback fired when the right before the `affixStyle` and `affixStyle` props are rendered
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*/
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onAffix: _propTypes2.default.func,
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/**
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* Callback fired after the component `affixStyle` and `affixClassName` props have been rendered.
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*/
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onAffixed: _propTypes2.default.func,
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/**
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* Callback fired when the right before the `topStyle` and `topClassName` props are rendered
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*/
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onAffixTop: _propTypes2.default.func,
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/**
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* Callback fired after the component `topStyle` and `topClassName` props have been rendered.
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*/
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onAffixedTop: _propTypes2.default.func,
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/**
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* Callback fired when the right before the `bottomStyle` and `bottomClassName` props are rendered
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*/
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onAffixBottom: _propTypes2.default.func,
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/**
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* Callback fired after the component `bottomStyle` and `bottomClassName` props have been rendered.
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*/
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onAffixedBottom: _propTypes2.default.func
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};
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Affix.defaultProps = {
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offsetTop: 0,
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viewportOffsetTop: null,
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offsetBottom: 0
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};
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exports.default = Affix;
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module.exports = exports['default'];
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