react-infinite/dist/react-infinite.min.js

A browser-ready efficient scrolling container based on UITableView

!function(e){if("object"==typeof exports&&"undefined"!=typeof module)module.exports=e();else if("function"==typeof define&&define.amd)define([],e);else{var t;t="undefined"!=typeof window?window:"undefined"!=typeof global?global:"undefined"!=typeof self?self:this,t.Infinite=e()}}(function(){return function e(t,n,o){function r(a,s){if(!n[a]){if(!t[a]){var l="function"==typeof require&&require;if(!s&&l)return l(a,!0);if(i)return i(a,!0);var c=new Error("Cannot find module '"+a+"'");throw c.code="MODULE_NOT_FOUND",c}var u=n[a]={exports:{}};t[a][0].call(u.exports,function(e){var n=t[a][1][e];return r(n?n:e)},u,u.exports,e,t,n,o)}return n[a].exports}for(var i="function"==typeof require&&require,a=0;a<o.length;a++)r(o[a]);return r}({1:[function(e,t,n){(function(n){"use strict";function o(e,t){var n={};for(var o in e)t.indexOf(o)>=0||Object.prototype.hasOwnProperty.call(e,o)&&(n[o]=e[o]);return n}var r=n.React||e("react"),i=n.PropTypes||e("prop-types"),a=n.createReactClass||e("create-react-class"),s=e("./utils/window");e("./utils/establish-polyfills");var l=e("./utils/scaleEnum"),c=e("./utils/infiniteHelpers"),u=e("lodash.isfinite"),p=e("./utils/types").preloadType,f=f=e("./utils/checkProps"),d=a({propTypes:{children:i.any,handleScroll:i.func,preloadBatchSize:p,preloadAdditionalHeight:p,elementHeight:i.oneOfType([i.number,i.arrayOf(i.number)]).isRequired,containerHeight:i.number,useWindowAsScrollContainer:i.bool,displayBottomUpwards:i.bool.isRequired,infiniteLoadBeginEdgeOffset:i.number,onInfiniteLoad:i.func,loadingSpinnerDelegate:i.node,isInfiniteLoading:i.bool,timeScrollStateLastsForAfterUserScrolls:i.number,className:i.string,styles:i.shape({scrollableStyle:i.object}).isRequired},statics:{containerHeightScaleFactor:function(e){if(!u(e))throw new Error("The scale factor must be a number.");return{type:l.CONTAINER_HEIGHT_SCALE_FACTOR,amount:e}}},computedProps:{},utils:{},shouldAttachToBottom:!1,preservedScrollState:0,loadingSpinnerHeight:0,deprecationWarned:!1,scrollable:null,topSpacer:null,bottomSpacer:null,smoothScrollingWrapper:null,loadingSpinner:null,getDefaultProps:function(){return{handleScroll:function(){},useWindowAsScrollContainer:!1,onInfiniteLoad:function(){},loadingSpinnerDelegate:r.createElement("div",null),displayBottomUpwards:!1,isInfiniteLoading:!1,timeScrollStateLastsForAfterUserScrolls:150,className:"",styles:{}}},getInitialState:function(){var e=this.recomputeInternalStateFromProps(this.props);this.computedProps=e.computedProps,this.utils=e.utils,this.shouldAttachToBottom=this.props.displayBottomUpwards;var t=e.newState;return t.scrollTimeout=void 0,t.isScrolling=!1,t},generateComputedProps:function(e){var t=e.containerHeight,n=e.preloadBatchSize,r=e.preloadAdditionalHeight,i=o(e,["containerHeight","preloadBatchSize","preloadAdditionalHeight"]),a={};t="number"==typeof t?t:0,a.containerHeight=e.useWindowAsScrollContainer?s.innerHeight:t,void 0!==i.infiniteLoadBeginBottomOffset&&(a.infiniteLoadBeginEdgeOffset=i.infiniteLoadBeginBottomOffset,this.deprecationWarned||(console.error("Warning: React Infinite's infiniteLoadBeginBottomOffset prop\n        has been deprecated as of 0.6.0. Please use infiniteLoadBeginEdgeOffset.\n        Because this is a rather descriptive name, a simple find and replace\n        should suffice."),this.deprecationWarned=!0));var c={type:l.CONTAINER_HEIGHT_SCALE_FACTOR,amount:.5},u=n&&n.type?n:c;"number"==typeof n?a.preloadBatchSize=n:"object"==typeof u&&u.type===l.CONTAINER_HEIGHT_SCALE_FACTOR?a.preloadBatchSize=a.containerHeight*u.amount:a.preloadBatchSize=0;var p={type:l.CONTAINER_HEIGHT_SCALE_FACTOR,amount:1},f=r&&r.type?r:p;return"number"==typeof r?a.preloadAdditionalHeight=r:"object"==typeof f&&f.type===l.CONTAINER_HEIGHT_SCALE_FACTOR?a.preloadAdditionalHeight=a.containerHeight*f.amount:a.preloadAdditionalHeight=0,Object.assign(i,a)},generateComputedUtilityFunctions:function(e){var t=this,n={};return n.getLoadingSpinnerHeight=function(){var e=0;return t.loadingSpinner&&(e=t.loadingSpinner.offsetHeight||0),e},e.useWindowAsScrollContainer?(n.subscribeToScrollListener=function(){s.addEventListener("scroll",t.infiniteHandleScroll)},n.unsubscribeFromScrollListener=function(){s.removeEventListener("scroll",t.infiniteHandleScroll)},n.nodeScrollListener=function(){},n.getScrollTop=function(){return s.pageYOffset},n.setScrollTop=function(e){s.scroll(s.pageXOffset,e)},n.scrollShouldBeIgnored=function(){return!1},n.buildScrollableStyle=function(){return{}}):(n.subscribeToScrollListener=function(){},n.unsubscribeFromScrollListener=function(){},n.nodeScrollListener=this.infiniteHandleScroll,n.getScrollTop=function(){return t.scrollable?t.scrollable.scrollTop:0},n.setScrollTop=function(e){t.scrollable&&(t.scrollable.scrollTop=e)},n.scrollShouldBeIgnored=function(e){return e.target!==t.scrollable},n.buildScrollableStyle=function(){return Object.assign({},{height:t.computedProps.containerHeight,overflowX:"hidden",overflowY:"scroll",WebkitOverflowScrolling:"touch"},t.computedProps.styles.scrollableStyle||{})}),n},recomputeInternalStateFromProps:function(e){f(e);var t=this.generateComputedProps(e),n=this.generateComputedUtilityFunctions(e),o={};return o.numberOfChildren=r.Children.count(t.children),o.infiniteComputer=c.createInfiniteComputer(t.elementHeight,t.children),void 0!==t.isInfiniteLoading&&(o.isInfiniteLoading=t.isInfiniteLoading),o.preloadBatchSize=t.preloadBatchSize,o.preloadAdditionalHeight=t.preloadAdditionalHeight,o=Object.assign(o,c.recomputeApertureStateFromOptionsAndScrollTop(o,n.getScrollTop())),{computedProps:t,utils:n,newState:o}},componentWillReceiveProps:function(e){var t=this.recomputeInternalStateFromProps(e);this.computedProps=t.computedProps,this.utils=t.utils,this.setState(t.newState)},componentWillUpdate:function(){this.props.displayBottomUpwards&&(this.preservedScrollState=this.utils.getScrollTop()-this.loadingSpinnerHeight)},componentDidUpdate:function(e,t){if(this.loadingSpinnerHeight=this.utils.getLoadingSpinnerHeight(),this.props.displayBottomUpwards){var n=this.getLowestPossibleScrollTop();this.shouldAttachToBottom&&this.utils.getScrollTop()<n?this.utils.setScrollTop(n):e.isInfiniteLoading&&!this.props.isInfiniteLoading&&this.utils.setScrollTop(this.state.infiniteComputer.getTotalScrollableHeight()-t.infiniteComputer.getTotalScrollableHeight()+this.preservedScrollState)}var o=this.state.numberOfChildren!==t.numberOfChildren;if(o){var r=c.recomputeApertureStateFromOptionsAndScrollTop(this.state,this.utils.getScrollTop());this.setState(r)}o&&!this.hasAllVisibleItems()&&!this.state.isInfiniteLoading&&this.onInfiniteLoad()},componentDidMount:function(){if(this.utils.subscribeToScrollListener(),this.hasAllVisibleItems()||this.onInfiniteLoad(),this.props.displayBottomUpwards){var e=this.getLowestPossibleScrollTop();this.shouldAttachToBottom&&this.utils.getScrollTop()<e&&this.utils.setScrollTop(e)}},componentWillUnmount:function(){this.utils.unsubscribeFromScrollListener()},infiniteHandleScroll:function(e){this.utils.scrollShouldBeIgnored(e)||(this.computedProps.handleScroll(this.scrollable),this.handleScroll(this.utils.getScrollTop()))},manageScrollTimeouts:function(){this.state.scrollTimeout&&clearTimeout(this.state.scrollTimeout);var e=this,t=setTimeout(function(){e.setState({isScrolling:!1,scrollTimeout:void 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t=c.recomputeApertureStateFromOptionsAndScrollTop(this.state,e);this.passedEdgeForInfiniteScroll(e)&&!this.state.isInfiniteLoading?(this.setState(Object.assign({},t)),this.onInfiniteLoad()):this.setState(t)},buildHeightStyle:function(e){return{width:"100%",height:Math.ceil(e)}},render:function(){var e,t=this;e=this.state.numberOfChildren>1?this.computedProps.children.slice(this.state.displayIndexStart,this.state.displayIndexEnd+1):this.computedProps.children;var n={};this.state.isScrolling&&(n.pointerEvents="none");var o=this.state.infiniteComputer.getTopSpacerHeight(this.state.displayIndexStart),i=this.state.infiniteComputer.getBottomSpacerHeight(this.state.displayIndexEnd);if(this.computedProps.displayBottomUpwards){var a=this.computedProps.containerHeight-this.state.infiniteComputer.getTotalScrollableHeight();a>0&&(o=a-this.loadingSpinnerHeight)}var s=void 0===this.computedProps.infiniteLoadBeginEdgeOffset?null:r.createElement("div",{ref:function(e){t.loadingSpinner=e}},this.state.isInfiniteLoading?this.computedProps.loadingSpinnerDelegate:null);return r.createElement("div",{className:this.computedProps.className,ref:function(e){t.scrollable=e},style:this.utils.buildScrollableStyle(),onScroll:this.utils.nodeScrollListener},r.createElement("div",{ref:function(e){t.smoothScrollingWrapper=e},style:n},r.createElement("div",{ref:function(e){t.topSpacer=e},style:this.buildHeightStyle(o)}),this.computedProps.displayBottomUpwards&&s,e,!this.computedProps.displayBottomUpwards&&s,r.createElement("div",{ref:function(e){t.bottomSpacer=e},style:this.buildHeightStyle(i)})))}});t.exports=d,n.Infinite=d}).call(this,"undefined"!=typeof global?global:"undefined"!=typeof self?self:"undefined"!=typeof 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global?global:"undefined"!=typeof self?self:"undefined"!=typeof window?window:{})},{"../computers/arrayInfiniteComputer.js":18,"../computers/constantInfiniteComputer.js":19,react:void 0}],25:[function(e,t,n){"use strict";t.exports={CONTAINER_HEIGHT_SCALE_FACTOR:"containerHeightScaleFactor"}},{}],26:[function(e,t,n){(function(n){"use strict";var o=n.PropTypes||e("prop-types");t.exports={preloadType:o.oneOfType([o.number,o.shape({type:o.oneOf(["containerHeightScaleFactor"]).isRequired,amount:o.number.isRequired})])}}).call(this,"undefined"!=typeof global?global:"undefined"!=typeof self?self:"undefined"!=typeof window?window:{})},{"prop-types":16}],27:[function(e,t,n){(function(e){"use strict";var n;n="undefined"!=typeof window?window:"undefined"!=typeof e?e:"undefined"!=typeof self?self:{},t.exports=n}).call(this,"undefined"!=typeof global?global:"undefined"!=typeof self?self:"undefined"!=typeof window?window:{})},{}]},{},[1])(1)});