Files
ASHEBShop-h5/node_modules/react-virtualized/dist/commonjs/ScrollSync/ScrollSync.js
T
2017-05-10 16:33:00 +08:00

95 lines
3.9 KiB
JavaScript

'use strict';
Object.defineProperty(exports, "__esModule", {
value: true
});
var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();
var _propTypes = require('prop-types');
var _propTypes2 = _interopRequireDefault(_propTypes);
var _react = require('react');
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
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; }
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; }
/**
* HOC that simplifies the process of synchronizing scrolling between two or more virtualized components.
*/
var ScrollSync = function (_PureComponent) {
_inherits(ScrollSync, _PureComponent);
function ScrollSync(props, context) {
_classCallCheck(this, ScrollSync);
var _this = _possibleConstructorReturn(this, (ScrollSync.__proto__ || Object.getPrototypeOf(ScrollSync)).call(this, props, context));
_this.state = {
clientHeight: 0,
clientWidth: 0,
scrollHeight: 0,
scrollLeft: 0,
scrollTop: 0,
scrollWidth: 0
};
_this._onScroll = _this._onScroll.bind(_this);
return _this;
}
_createClass(ScrollSync, [{
key: 'render',
value: function render() {
var children = this.props.children;
var _state = this.state,
clientHeight = _state.clientHeight,
clientWidth = _state.clientWidth,
scrollHeight = _state.scrollHeight,
scrollLeft = _state.scrollLeft,
scrollTop = _state.scrollTop,
scrollWidth = _state.scrollWidth;
return children({
clientHeight: clientHeight,
clientWidth: clientWidth,
onScroll: this._onScroll,
scrollHeight: scrollHeight,
scrollLeft: scrollLeft,
scrollTop: scrollTop,
scrollWidth: scrollWidth
});
}
}, {
key: '_onScroll',
value: function _onScroll(_ref) {
var clientHeight = _ref.clientHeight,
clientWidth = _ref.clientWidth,
scrollHeight = _ref.scrollHeight,
scrollLeft = _ref.scrollLeft,
scrollTop = _ref.scrollTop,
scrollWidth = _ref.scrollWidth;
this.setState({ clientHeight: clientHeight, clientWidth: clientWidth, scrollHeight: scrollHeight, scrollLeft: scrollLeft, scrollTop: scrollTop, scrollWidth: scrollWidth });
}
}]);
return ScrollSync;
}(_react.PureComponent);
exports.default = ScrollSync;
process.env.NODE_ENV !== "production" ? ScrollSync.propTypes = {
/**
* Function responsible for rendering 2 or more virtualized components.
* This function should implement the following signature:
* ({ onScroll, scrollLeft, scrollTop }) => PropTypes.element
*/
children: _propTypes2.default.func.isRequired
} : void 0;