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_extends=Object.assign||function(target){for(var i=1;i=0)continue;if(!Object.prototype.hasOwnProperty.call(obj,i))continue;target[i]=obj[i];}return target;}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;}\n\nvar normalizeScrollEvent=function normalizeScrollEvent(e){return{\nnativeEvent:{\ncontentOffset:{\nget x(){\nreturn e.target.scrollLeft;\n},\nget y(){\nreturn e.target.scrollTop;\n}},\n\ncontentSize:{\nget height(){\nreturn e.target.scrollHeight;\n},\nget width(){\nreturn e.target.scrollWidth;\n}},\n\nlayoutMeasurement:{\nget height(){\nreturn e.target.offsetHeight;\n},\nget width(){\nreturn e.target.offsetWidth;\n}}},\n\n\ntimeStamp:Date.now()};};var\n\n\n\n\n\nScrollViewBase=function(_Component){_inherits(ScrollViewBase,_Component);\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\nfunction ScrollViewBase(props){_classCallCheck(this,ScrollViewBase);var _this=_possibleConstructorReturn(this,(ScrollViewBase.__proto__||Object.getPrototypeOf(ScrollViewBase)).call(this,\nprops));_this.\n\n\n\n\n_handlePreventableScrollEvent=function(handler){\nreturn function(e){\nif(!_this.props.scrollEnabled){\ne.preventDefault();\n}else{\nif(handler){\nhandler(e);\n}\n}\n};\n};_this.\n\n_handleScroll=function(e){\ne.persist();\ne.stopPropagation();var\nscrollEventThrottle=_this.props.scrollEventThrottle;\n\n_this._debouncedOnScrollEnd(e);\nif(_this._state.isScrolling){\n\nif(_this._shouldEmitScrollEvent(_this._state.scrollLastTick,scrollEventThrottle)){\n_this._handleScrollTick(e);\n}\n}else{\n\n_this._handleScrollStart(e);\n}\n};_this._debouncedOnScrollEnd=(0,_debounce2.default)(_this._handleScrollEnd,100);_this._state={isScrolling:false};return _this;}_createClass(ScrollViewBase,[{key:'_handleScrollStart',value:function _handleScrollStart(\n\ne){\nthis._state.isScrolling=true;\nthis._state.scrollLastTick=Date.now();\n}},{key:'_handleScrollTick',value:function 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_props=\n\n\n\n\n\n\n\n\n\n\n\n\n\nthis.props,onMomentumScrollBegin=_props.onMomentumScrollBegin,onMomentumScrollEnd=_props.onMomentumScrollEnd,onScrollBeginDrag=_props.onScrollBeginDrag,onScrollEndDrag=_props.onScrollEndDrag,removeClippedSubviews=_props.removeClippedSubviews,scrollEnabled=_props.scrollEnabled,scrollEventThrottle=_props.scrollEventThrottle,showsHorizontalScrollIndicator=_props.showsHorizontalScrollIndicator,showsVerticalScrollIndicator=_props.showsVerticalScrollIndicator,other=_objectWithoutProperties(_props,['onMomentumScrollBegin','onMomentumScrollEnd','onScrollBeginDrag','onScrollEndDrag','removeClippedSubviews','scrollEnabled','scrollEventThrottle','showsHorizontalScrollIndicator','showsVerticalScrollIndicator']);\n\nreturn(\n_react2.default.createElement(_View2.default,_extends({},\nother,{\nonScroll:this._handleScroll,\nonTouchMove:this._handlePreventableScrollEvent(this.props.onTouchMove),\nonWheel:this._handlePreventableScrollEvent(this.props.onWheel)})));\n\n\n}}]);return ScrollViewBase;}(_react.Component);ScrollViewBase.defaultProps={scrollEnabled:true,scrollEventThrottle:0};exports.default=ScrollViewBase;ScrollViewBase.propTypes=process.env.NODE_ENV!==\"production\"?_extends({},_ViewPropTypes2.default,{onMomentumScrollBegin:_propTypes.func,onMomentumScrollEnd:_propTypes.func,onScroll:_propTypes.func,onScrollBeginDrag:_propTypes.func,onScrollEndDrag:_propTypes.func,onTouchMove:_propTypes.func,onWheel:_propTypes.func,removeClippedSubviews:_propTypes.bool,scrollEnabled:_propTypes.bool,scrollEventThrottle:_propTypes.number,showsHorizontalScrollIndicator:_propTypes.bool,showsVerticalScrollIndicator:_propTypes.bool}):{};"]}