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var ResizeObserverBoxOptions,resizeObservers=[],hasActiveObservations=function(){return resizeObservers.some((function(e){return e.activeTargets.length>0}))},hasSkippedObservations=function(){return resizeObservers.some((function(e){return e.skippedTargets.length>0}))},msg="ResizeObserver loop completed with undelivered notifications.",deliverResizeLoopError=function(){var e;"function"==typeof ErrorEvent?e=new ErrorEvent("error",{message:msg}):((e=document.createEvent("Event")).initEvent("error",!1,!1),e.message=msg),window.dispatchEvent(e)};!function(e){e.BORDER_BOX="border-box",e.CONTENT_BOX="content-box",e.DEVICE_PIXEL_CONTENT_BOX="device-pixel-content-box"}(ResizeObserverBoxOptions||(ResizeObserverBoxOptions={}));var trigger,freeze=function(e){return Object.freeze(e)},ResizeObserverSize=function(e,t){this.inlineSize=e,this.blockSize=t,freeze(this)},DOMRectReadOnly=function(){function e(e,t,r,i){return this.x=e,this.y=t,this.width=r,this.height=i,this.top=this.y,this.left=this.x,this.bottom=this.top+this.height,this.right=this.left+this.width,freeze(this)}return e.prototype.toJSON=function(){var e=this;return{x:e.x,y:e.y,top:e.top,right:e.right,bottom:e.bottom,left:e.left,width:e.width,height:e.height}},e.fromRect=function(t){return new e(t.x,t.y,t.width,t.height)},e}(),isSVG=function(e){return e instanceof SVGElement&&"getBBox"in e},isHidden=function(e){if(isSVG(e)){var t=e.getBBox(),r=t.width,i=t.height;return!r&&!i}var n=e,o=n.offsetWidth,s=n.offsetHeight;return!(o||s||e.getClientRects().length)},isElement=function(e){var t;if(e instanceof Element)return!0;var r=null===(t=null==e?void 0:e.ownerDocument)||void 0===t?void 0:t.defaultView;return!!(r&&e instanceof r.Element)},isReplacedElement=function(e){switch(e.tagName){case"INPUT":if("image"!==e.type)break;case"VIDEO":case"AUDIO":case"EMBED":case"OBJECT":case"CANVAS":case"IFRAME":case"IMG":return!0}return!1},global="undefined"!=typeof window?window:{},cache=new WeakMap,scrollRegexp=/auto|scroll/,verticalRegexp=/^tb|vertical/,IE=/msie|trident/i.test(global.navigator&&global.navigator.userAgent),parseDimension=function(e){return parseFloat(e||"0")},size=function(e,t,r){return void 0===e&&(e=0),void 0===t&&(t=0),void 0===r&&(r=!1),new ResizeObserverSize((r?t:e)||0,(r?e:t)||0)},zeroBoxes=freeze({devicePixelContentBoxSize:size(),borderBoxSize:size(),contentBoxSize:size(),contentRect:new DOMRectReadOnly(0,0,0,0)}),calculateBoxSizes=function(e,t){if(void 0===t&&(t=!1),cache.has(e)&&!t)return cache.get(e);if(isHidden(e))return cache.set(e,zeroBoxes),zeroBoxes;var r=getComputedStyle(e),i=isSVG(e)&&e.ownerSVGElement&&e.getBBox(),n=!IE&&"border-box"===r.boxSizing,o=verticalRegexp.test(r.writingMode||""),s=!i&&scrollRegexp.test(r.overflowY||""),a=!i&&scrollRegexp.test(r.overflowX||""),c=i?0:parseDimension(r.paddingTop),u=i?0:parseDimension(r.paddingRight),v=i?0:parseDimension(r.paddingBottom),l=i?0:parseDimension(r.paddingLeft),h=i?0:parseDimension(r.borderTopWidth),d=i?0:parseDimension(r.borderRightWidth),p=i?0:parseDimension(r.borderBottomWidth),f=l+u,b=c+v,g=(i?0:parseDimension(r.borderLeftWidth))+d,z=h+p,O=a?e.offsetHeight-z-e.clientHeight:0,x=s?e.offsetWidth-g-e.clientWidth:0,R=n?f+g:0,m=n?b+z:0,E=i?i.width:parseDimension(r.width)-R-x,w=i?i.height:parseDimension(r.height)-m-O,S=E+f+x+g,B=w+b+O+z,y=freeze({devicePixelContentBoxSize:size(Math.round(E*devicePixelRatio),Math.round(w*devicePixelRatio),o),borderBoxSize:size(S,B,o),contentBoxSize:size(E,w,o),contentRect:new DOMRectReadOnly(l,c,E,w)});return cache.set(e,y),y},calculateBoxSize=function(e,t,r){var i=calculateBoxSizes(e,r),n=i.borderBoxSize,o=i.contentBoxSize,s=i.devicePixelContentBoxSize;switch(t){case ResizeObserverBoxOptions.DEVICE_PIXEL_CONTENT_BOX:return s;case ResizeObserverBoxOptions.BORDER_BOX:return n;default:return o}},ResizeObserverEntry=function(e){var t=calculateBoxSizes(e);this.target=e,this.contentRect=t.contentRect,this.borderBoxSize=freeze([t.borderBoxSize]),this.contentBoxSize=freeze([t.contentBoxSize]),this.devicePixelContentBoxSize=freeze([t.devicePixelContentBoxSize])},calculateDepthForNode=function(e){if(isHidden(e))return 1/0;for(var t=0,r=e.parentNode;r;)t+=1,r=r.parentNode;return t},broadcastActiveObservations=function(){var e=1/0,t=[];resizeObservers.forEach((function(r){if(0!==r.activeTargets.length){var i=[];r.activeTargets.forEach((function(t){var r=new ResizeObserverEntry(t.target),n=calculateDepthForNode(t.target);i.push(r),t.lastReportedSize=calculateBoxSize(t.target,t.observedBox),n<e&&(e=n)})),t.push((function(){r.callback.call(r.observer,i,r.observer)})),r.activeTargets.splice(0,r.activeTargets.length)}}));for(var r=0,i=t;r<i.length;r++)(0,i[r])();return e},gatherActiveObservationsAtDepth=function(e){resizeObservers.forEach((function(t){t.activeTargets.splice(0,t.activeTargets.length),t.skippedTargets.splice(0,t.skippedTargets.length),t.observationTargets.forEach((function(r){r.isActive()&&(calculateDepthForNode(r.target)>e?t.activeTargets.push(r):t.skippedTargets.push(r))}))}))},process=function(){var e=0;for(gatherActiveObservationsAtDepth(e);hasActiveObservations();)e=broadcastActiveObservations(),gatherActiveObservationsAtDepth(e);return hasSkippedObservations()&&deliverResizeLoopError(),e>0},callbacks=[],notify=function(){return callbacks.splice(0).forEach((function(e){return e()}))},queueMicroTask=function(e){if(!trigger){var t=0,r=document.createTextNode("");new MutationObserver((function(){return notify()})).observe(r,{characterData:!0}),trigger=function(){r.textContent="".concat(t?t--:t++)}}callbacks.push(e),trigger()},queueResizeObserver=function(e){queueMicroTask((function(){requestAnimationFrame(e)}))},watching=0,isWatching=function(){return!!watching},CATCH_PERIOD=250,observerConfig={attributes:!0,characterData:!0,childList:!0,subtree:!0},events=["resize","load","transitionend","animationend","animationstart","animationiteration","keyup","keydown","mouseup","mousedown","mouseover","mouseout","blur","focus"],time=function(e){return void 0===e&&(e=0),Date.now()+e},scheduled=!1,Scheduler=function(){function e(){var e=this;this.stopped=!0,this.listener=function(){return e.schedule()}}return e.prototype.run=function(e){var t=this;if(void 0===e&&(e=CATCH_PERIOD),!scheduled){scheduled=!0;var r=time(e);queueResizeObserver((function(){var i=!1;try{i=process()}finally{if(scheduled=!1,e=r-time(),!isWatching())return;i?t.run(1e3):e>0?t.run(e):t.start()}}))}},e.prototype.schedule=function(){this.stop(),this.run()},e.prototype.observe=function(){var e=this,t=function(){return e.observer&&e.observer.observe(document.body,observerConfig)};document.body?t():global.addEventListener("DOMContentLoaded",t)},e.prototype.start=function(){var e=this;this.stopped&&(this.stopped=!1,this.observer=new MutationObserver(this.listener),this.observe(),events.forEach((function(t){return global.addEventListener(t,e.listener,!0)})))},e.prototype.stop=function(){var e=this;this.stopped||(this.observer&&this.observer.disconnect(),events.forEach((function(t){return global.removeEventListener(t,e.listener,!0)})),this.stopped=!0)},e}(),scheduler=new Scheduler,updateCount=function(e){!watching&&e>0&&scheduler.start(),!(watching+=e)&&scheduler.stop()},skipNotifyOnElement=function(e){return!isSVG(e)&&!isReplacedElement(e)&&"inline"===getComputedStyle(e).display},ResizeObservation=function(){function e(e,t){this.target=e,this.observedBox=t||ResizeObserverBoxOptions.CONTENT_BOX,this.lastReportedSize={inlineSize:0,blockSize:0}}return e.prototype.isActive=function(){var e=calculateBoxSize(this.target,this.observedBox,!0);return skipNotifyOnElement(this.target)&&(this.lastReportedSize=e),this.lastReportedSize.inlineSize!==e.inlineSize||this.lastReportedSize.blockSize!==e.blockSize},e}(),ResizeObserverDetail=function(e,t){this.activeTargets=[],this.skippedTargets=[],this.observationTargets=[],this.observer=e,this.callback=t},observerMap=new WeakMap,getObservationIndex=function(e,t){for(var r=0;r<e.length;r+=1)if(e[r].target===t)return r;return-1},ResizeObserverController=function(){function e(){}return e.connect=function(e,t){var r=new ResizeObserverDetail(e,t);observerMap.set(e,r)},e.observe=function(e,t,r){var i=observerMap.get(e),n=0===i.observationTargets.length;getObservationIndex(i.observationTargets,t)<0&&(n&&resizeObservers.push(i),i.observationTargets.push(new ResizeObservation(t,r&&r.box)),updateCount(1),scheduler.schedule())},e.unobserve=function(e,t){var r=observerMap.get(e),i=getObservationIndex(r.observationTargets,t),n=1===r.observationTargets.length;i>=0&&(n&&resizeObservers.splice(resizeObservers.indexOf(r),1),r.observationTargets.splice(i,1),updateCount(-1))},e.disconnect=function(e){var t=this,r=observerMap.get(e);r.observationTargets.slice().forEach((function(r){return t.unobserve(e,r.target)})),r.activeTargets.splice(0,r.activeTargets.length)},e}(),ResizeObserver=function(){function e(e){if(0===arguments.length)throw new TypeError("Failed to construct 'ResizeObserver': 1 argument required, but only 0 present.");if("function"!=typeof e)throw new TypeError("Failed to construct 'ResizeObserver': The callback provided as parameter 1 is not a function.");ResizeObserverController.connect(this,e)}return e.prototype.observe=function(e,t){if(0===arguments.length)throw new TypeError("Failed to execute 'observe' on 'ResizeObserver': 1 argument required, but only 0 present.");if(!isElement(e))throw new TypeError("Failed to execute 'observe' on 'ResizeObserver': parameter 1 is not of type 'Element");ResizeObserverController.observe(this,e,t)},e.prototype.unobserve=function(e){if(0===arguments.length)throw new TypeError("Failed to execute 'unobserve' on 'ResizeObserver': 1 argument required, but only 0 present.");if(!isElement(e))throw new TypeError("Failed to execute 'unobserve' on 'ResizeObserver': parameter 1 is not of type 'Element");ResizeObserverController.unobserve(this,e)},e.prototype.disconnect=function(){ResizeObserverController.disconnect(this)},e.toString=function(){return"function ResizeObserver () { [polyfill code] }"},e}();export{ResizeObserver,ResizeObserverEntry,ResizeObserverSize};