function e(e){return e&&"object"==typeof e&&"default"in e?e.default:e}var t=e(require("react")),n=e(require("react-intersection-observer")),r=require("unionize"),o=function(e,t){return(o=Object.setPrototypeOf||{__proto__:[]}instanceof Array&&function(e,t){e.__proto__=t}||function(e,t){for(var n in t)t.hasOwnProperty(n)&&(e[n]=t[n])})(e,t)};var a,i=function(){return(i=Object.assign||function(e){for(var t,n=1,r=arguments.length;n<r;n++)for(var o in t=arguments[n])Object.prototype.hasOwnProperty.call(t,o)&&(e[o]=t[o]);return e}).apply(this,arguments)};function c(e,t){var n={};for(var r in e)Object.prototype.hasOwnProperty.call(e,r)&&t.indexOf(r)<0&&(n[r]=e[r]);if(null!=e&&"function"==typeof Object.getOwnPropertySymbols){var o=0;for(r=Object.getOwnPropertySymbols(e);o<r.length;o++)t.indexOf(r[o])<0&&(n[r[o]]=e[r[o]])}return n}(a=exports.ImageState||(exports.ImageState={})).NotAsked="NotAsked",a.Loading="Loading",a.LoadSuccess="LoadSuccess",a.LoadError="LoadError";var u=r.unionize({NotAsked:{},Buffering:{},Loading:{},LoadSuccess:{},LoadError:r.ofType()}),s=r.unionize({ViewChanged:r.ofType(),BufferingEnded:{},LoadSuccess:{},LoadError:r.ofType()}),d=function(e,t){return function(n){var r=m(g(e,t));r.promise.then(function(e){return n.update(s.LoadSuccess({}))}).catch(function(e){e.isCanceled||n.update(s.LoadError({msg:"Failed to load"}))}),n.promiseCache.loading=r}},f=function(e){e.promiseCache.buffering.cancel()},p=function(e){function r(t){var n=e.call(this,t)||this;return n.promiseCache={},n.initialState=u.NotAsked(),n.state=n.initialState,n.update=n.update.bind(n),n}return function(e,t){function n(){this.constructor=e}o(e,t),e.prototype=null===t?Object.create(t):(n.prototype=t.prototype,new n)}(r,e),r.reducer=function(e,t,n){return s.match(e,{ViewChanged:function(e){return!0===e.inView?n.src?u.match(t,{NotAsked:function(){return n.debounceDurationMs?{nextState:u.Buffering(),cmd:(e=n.debounceDurationMs,function(t){var n=m(l(e));n.promise.then(function(){return t.update(s.BufferingEnded())}).catch(function(e){}),t.promiseCache.buffering=n})}:{nextState:u.Loading(),cmd:d(n,n.experimentalDecode)};var e},default:function(){return{nextState:t}}}):{nextState:u.LoadSuccess()}:u.match(t,{Buffering:function(){return{nextState:u.NotAsked(),cmd:f}},default:function(){return{nextState:t}}})},BufferingEnded:function(){return{nextState:u.Loading(),cmd:d(n,n.experimentalDecode)}},LoadSuccess:function(){return{nextState:u.LoadSuccess()}},LoadError:function(e){return{nextState:u.LoadError(e)}}})},r.prototype.update=function(e){var t=this,n=r.reducer(e,this.state,this.props),o=n.nextState,a=n.cmd;this.props.debugActions&&("production"===process.env.NODE_ENV&&console.warn('You are running LazyImage with debugActions="true" in production. This might have performance implications.'),console.log({action:e,prevState:this.state,nextState:o})),this.setState(o,function(){return a&&a(t)})},r.prototype.componentWillUnmount=function(){this.promiseCache.loading&&this.promiseCache.loading.cancel(),this.promiseCache.buffering&&this.promiseCache.buffering.cancel(),this.promiseCache={}},r.prototype.render=function(){var e=this,r=this.props,o=r.children,a=r.loadEagerly,d=r.observerProps,f=c(r,["children","loadEagerly","observerProps","experimentalDecode","debounceDurationMs","debugActions"]);return a?o({imageState:u.LoadSuccess().tag,imageProps:f}):t.createElement(n,i({rootMargin:"50px 0px",threshold:.01},d,{onChange:function(t){return e.update(s.ViewChanged({inView:t}))}}),function(t){return o({imageState:"Buffering"===e.state.tag?exports.ImageState.Loading:e.state.tag,imageProps:f,ref:t.ref})})},r.displayName="LazyImageFull",r}(t.Component),g=function(e,t){var n=e.src,r=e.srcSet,o=e.alt,a=e.sizes;return void 0===t&&(t=!1),new Promise(function(e,i){var c=new Image;if(r&&(c.srcset=r),o&&(c.alt=o),a&&(c.sizes=a),c.src=n,t&&"decode"in c)return c.decode().then(function(t){return e(t)}).catch(function(e){return i(e)});c.onload=e,c.onerror=i})},l=function(e){return new Promise(function(t){return setTimeout(t,e)})},m=function(e){var t=!1;return{promise:new Promise(function(n,r){e.then(function(e){return t?r({isCanceled:!0}):n(e)}),e.catch(function(e){return r(t?{isCanceled:!0}:e)})}),cancel:function(){t=!0}}},h=function(e){var n=e.actual,r=e.placeholder,o=e.loading,a=e.error,u=c(e,["actual","placeholder","loading","error"]);return t.createElement(p,i({},u),function(e){var t=e.imageProps,i=e.ref;switch(e.imageState){case exports.ImageState.NotAsked:return!!r&&r({imageProps:t,ref:i});case exports.ImageState.Loading:return o?o():!!r&&r({imageProps:t,ref:i});case exports.ImageState.LoadSuccess:return n({imageProps:t});case exports.ImageState.LoadError:return a?a():n({imageProps:t})}})};h.displayName="LazyImage",exports.LazyImage=h,exports.LazyImageFull=p; //# sourceMappingURL=react-lazy-images.js.map