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293 lines
12 KiB
293 lines
12 KiB
"use strict";
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function _typeof(obj) { "@babel/helpers - typeof"; if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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exports.default = void 0;
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var React = _interopRequireWildcard(require("react"));
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var _classnames = _interopRequireDefault(require("classnames"));
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var _raf = _interopRequireDefault(require("rc-util/lib/raf"));
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function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
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function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }
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function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || _typeof(obj) !== "object" && typeof obj !== "function") { return { default: obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj.default = obj; if (cache) { cache.set(obj, newObj); } return newObj; }
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function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return 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 _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); } }
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function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
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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"); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, writable: true, configurable: true } }); if (superClass) _setPrototypeOf(subClass, superClass); }
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function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }
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function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function _createSuperInternal() { var Super = _getPrototypeOf(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = _getPrototypeOf(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return _possibleConstructorReturn(this, result); }; }
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function _possibleConstructorReturn(self, call) { if (call && (_typeof(call) === "object" || typeof call === "function")) { return call; } else if (call !== void 0) { throw new TypeError("Derived constructors may only return object or undefined"); } return _assertThisInitialized(self); }
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function _assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return self; }
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function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); return true; } catch (e) { return false; } }
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function _getPrototypeOf(o) { _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) { return o.__proto__ || Object.getPrototypeOf(o); }; return _getPrototypeOf(o); }
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var MIN_SIZE = 20;
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function getPageY(e) {
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return 'touches' in e ? e.touches[0].pageY : e.pageY;
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}
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var ScrollBar = /*#__PURE__*/function (_React$Component) {
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_inherits(ScrollBar, _React$Component);
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var _super = _createSuper(ScrollBar);
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function ScrollBar() {
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var _this;
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_classCallCheck(this, ScrollBar);
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for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
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args[_key] = arguments[_key];
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}
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_this = _super.call.apply(_super, [this].concat(args));
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_this.moveRaf = null;
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_this.scrollbarRef = /*#__PURE__*/React.createRef();
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_this.thumbRef = /*#__PURE__*/React.createRef();
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_this.visibleTimeout = null;
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_this.state = {
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dragging: false,
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pageY: null,
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startTop: null,
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visible: false
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};
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_this.delayHidden = function () {
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clearTimeout(_this.visibleTimeout);
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_this.setState({
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visible: true
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});
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_this.visibleTimeout = setTimeout(function () {
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_this.setState({
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visible: false
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});
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}, 2000);
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};
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_this.onScrollbarTouchStart = function (e) {
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e.preventDefault();
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};
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_this.onContainerMouseDown = function (e) {
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e.stopPropagation();
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e.preventDefault();
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};
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_this.patchEvents = function () {
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window.addEventListener('mousemove', _this.onMouseMove);
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window.addEventListener('mouseup', _this.onMouseUp);
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_this.thumbRef.current.addEventListener('touchmove', _this.onMouseMove);
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_this.thumbRef.current.addEventListener('touchend', _this.onMouseUp);
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};
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_this.removeEvents = function () {
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window.removeEventListener('mousemove', _this.onMouseMove);
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window.removeEventListener('mouseup', _this.onMouseUp);
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_this.scrollbarRef.current.removeEventListener('touchstart', _this.onScrollbarTouchStart);
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_this.thumbRef.current.removeEventListener('touchstart', _this.onMouseDown);
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_this.thumbRef.current.removeEventListener('touchmove', _this.onMouseMove);
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_this.thumbRef.current.removeEventListener('touchend', _this.onMouseUp);
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_raf.default.cancel(_this.moveRaf);
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};
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_this.onMouseDown = function (e) {
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var onStartMove = _this.props.onStartMove;
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_this.setState({
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dragging: true,
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pageY: getPageY(e),
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startTop: _this.getTop()
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});
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onStartMove();
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_this.patchEvents();
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e.stopPropagation();
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e.preventDefault();
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};
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_this.onMouseMove = function (e) {
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var _this$state = _this.state,
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dragging = _this$state.dragging,
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pageY = _this$state.pageY,
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startTop = _this$state.startTop;
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var onScroll = _this.props.onScroll;
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_raf.default.cancel(_this.moveRaf);
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if (dragging) {
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var offsetY = getPageY(e) - pageY;
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var newTop = startTop + offsetY;
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var enableScrollRange = _this.getEnableScrollRange();
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var enableHeightRange = _this.getEnableHeightRange();
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var ptg = enableHeightRange ? newTop / enableHeightRange : 0;
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var newScrollTop = Math.ceil(ptg * enableScrollRange);
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_this.moveRaf = (0, _raf.default)(function () {
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onScroll(newScrollTop);
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});
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}
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};
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_this.onMouseUp = function () {
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var onStopMove = _this.props.onStopMove;
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_this.setState({
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dragging: false
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});
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onStopMove();
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_this.removeEvents();
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};
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_this.getSpinHeight = function () {
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var _this$props = _this.props,
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height = _this$props.height,
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count = _this$props.count;
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var baseHeight = height / count * 10;
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baseHeight = Math.max(baseHeight, MIN_SIZE);
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baseHeight = Math.min(baseHeight, height / 2);
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return Math.floor(baseHeight);
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};
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_this.getEnableScrollRange = function () {
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var _this$props2 = _this.props,
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scrollHeight = _this$props2.scrollHeight,
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height = _this$props2.height;
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return scrollHeight - height || 0;
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};
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_this.getEnableHeightRange = function () {
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var height = _this.props.height;
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var spinHeight = _this.getSpinHeight();
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return height - spinHeight || 0;
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};
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_this.getTop = function () {
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var scrollTop = _this.props.scrollTop;
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var enableScrollRange = _this.getEnableScrollRange();
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var enableHeightRange = _this.getEnableHeightRange();
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if (scrollTop === 0 || enableScrollRange === 0) {
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return 0;
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}
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var ptg = scrollTop / enableScrollRange;
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return ptg * enableHeightRange;
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};
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_this.showScroll = function () {
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var _this$props3 = _this.props,
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height = _this$props3.height,
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scrollHeight = _this$props3.scrollHeight;
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return scrollHeight > height;
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};
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return _this;
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}
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_createClass(ScrollBar, [{
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key: "componentDidMount",
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value: function componentDidMount() {
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this.scrollbarRef.current.addEventListener('touchstart', this.onScrollbarTouchStart);
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this.thumbRef.current.addEventListener('touchstart', this.onMouseDown);
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}
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}, {
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key: "componentDidUpdate",
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value: function componentDidUpdate(prevProps) {
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if (prevProps.scrollTop !== this.props.scrollTop) {
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this.delayHidden();
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}
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}
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}, {
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key: "componentWillUnmount",
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value: function componentWillUnmount() {
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this.removeEvents();
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clearTimeout(this.visibleTimeout);
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}
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}, {
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key: "render",
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value: // ====================== Render =======================
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function render() {
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var _this$state2 = this.state,
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dragging = _this$state2.dragging,
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visible = _this$state2.visible;
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var prefixCls = this.props.prefixCls;
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var spinHeight = this.getSpinHeight();
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var top = this.getTop();
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var canScroll = this.showScroll();
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var mergedVisible = canScroll && visible;
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return /*#__PURE__*/React.createElement("div", {
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ref: this.scrollbarRef,
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className: (0, _classnames.default)("".concat(prefixCls, "-scrollbar"), _defineProperty({}, "".concat(prefixCls, "-scrollbar-show"), canScroll)),
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style: {
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width: 8,
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top: 0,
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bottom: 0,
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right: 0,
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position: 'absolute',
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display: mergedVisible ? null : 'none'
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},
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onMouseDown: this.onContainerMouseDown,
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onMouseMove: this.delayHidden
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}, /*#__PURE__*/React.createElement("div", {
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ref: this.thumbRef,
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className: (0, _classnames.default)("".concat(prefixCls, "-scrollbar-thumb"), _defineProperty({}, "".concat(prefixCls, "-scrollbar-thumb-moving"), dragging)),
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style: {
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width: '100%',
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height: spinHeight,
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top: top,
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left: 0,
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position: 'absolute',
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background: 'rgba(0, 0, 0, 0.5)',
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borderRadius: 99,
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cursor: 'pointer',
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userSelect: 'none'
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},
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onMouseDown: this.onMouseDown
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}));
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}
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}]);
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return ScrollBar;
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}(React.Component);
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exports.default = ScrollBar; |