2017-11-01 23:08:36 +08:00
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*/const isBrowser='undefined'!=typeof window&&'undefined'!=typeof window.document,longerTimeoutBrowsers=['Edge','Trident','Firefox'];let timeoutDuration=0;for(let e=0;e<longerTimeoutBrowsers.length;e+=1)if(isBrowser&&0<=navigator.userAgent.indexOf(longerTimeoutBrowsers[e])){timeoutDuration=1;break}function microtaskDebounce(e){let t=!1;return()=>{t||(t=!0,Promise.resolve().then(()=>{t=!1,e()}))}}function taskDebounce(e){let t=!1;return()=>{t||(t=!0,setTimeout(()=>{t=!1,e()},timeoutDuration))}}const supportsMicroTasks=isBrowser&&window.Promise;var debounce=supportsMicroTasks?microtaskDebounce:taskDebounce;function isFunction(e){return e&&'[object Function]'==={}.toString.call(e)}function getStyleComputedProperty(e,t){if(1!==e.nodeType)return[];const o=window.getComputedStyle(e,null);return t?o[t]:o}function getParentNode(e){return'HTML'===e.nodeName?e:e.parentNode||e.host}function getScrollParent(e){if(!e)return window.document.body;switch(e.nodeName){case'HTML':case'BODY':return e.ownerDocument.body;case'#document':return e.body;}const{overflow:t,overflowX:o,overflowY:n}=getStyleComputedProperty(e);return /(auto|scroll)/.test(t+n+o)?e:getScrollParent(getParentNode(e))}function getOffsetParent(e){const t=e&&e.offsetParent,o=t&&t.nodeName;return o&&'BODY'!==o&&'HTML'!==o?-1!==['TD','TABLE'].indexOf(t.nodeName)&&'static'===getStyleComputedProperty(t,'position')?getOffsetParent(t):t:e?e.ownerDocument.documentElement:window.document.documentElement}function isOffsetContainer(e){const{nodeName:t}=e;return'BODY'!==t&&('HTML'===t||getOffsetParent(e.firstElementChild)===e)}function getRoot(e){return null===e.parentNode?e:getRoot(e.parentNode)}function findCommonOffsetParent(e,t){if(!e||!e.nodeType||!t||!t.nodeType)return window.document.documentElement;const o=e.compareDocumentPosition(t)&Node.DOCUMENT_POSITION_FOLLOWING,n=o?e:t,i=o?t:e,r=document.createRange();r.setStart(n,0),r.setEnd(i,0);const{commonAncestorContainer:p}=r;if(e!==p&&t!==p||n.contains(i))return isOffsetContainer(p)?p:getOffsetParent(p);const d=getRoot(e);return d.host?findCommonOffsetParent(d.host,t):findCommonOffsetParent(e,getRoot(t).host)}function getScroll(e,t='top'){const o='top'===t?'scrollTop':'scrollLeft',n=e.nodeName;if('BODY'===n||'HTML'===n){const t=e.ownerDocument.documentElement,n=e.ownerDocument.scrollingElement||t;return n[o]}return e[o]}function includeScroll(e,t,o=!1){const n=getScroll(t,'top'),i=getScroll(t,'left'),r=o?-1:1;return e.top+=n*r,e.bottom+=n*r,e.left+=i*r,e.right+=i*r,e}function getBordersSize(e,t){const o='x'===t?'Left':'Top',n='Left'==o?'Right':'Bottom';return+e[`border${o}Width`].split('px')[0]+ +e[`border${n}Width`].split('px')[0]}let isIE10;var isIE10$1=function(){return void 0==isIE10&&(isIE10=-1!==navigator.appVersion.indexOf('MSIE 10')),isIE10};function getSize(e,t,o,n){return Math.max(t[`offset${e}`],t[`scroll${e}`],o[`client${e}`],o[`offset${e}`],o[`scroll${e}`],isIE10$1()?o[`offset${e}`]+n[`margin${'Height'===e?'Top':'Left'}`]+n[`margin${'Height'===e?'Bottom':'Right'}`]:0)}function getWindowSizes(){const e=window.document.body,t=window.document.documentElement,o=isIE10$1()&&window.getComputedStyle(t);return{height:getSize('Height',e,t,o),width:getSize('Width',e,t,o)}}var _extends=Object.assign||function(e){for(var t,o=1;o<arguments.length;o++)for(var n in t=arguments[o],t)Object.prototype.hasOwnProperty.call(t,n)&&(e[n]=t[n]);return e};function getClientRect(e){return _extends({},e,{right:e.left+e.width,bottom:e.top+e.height})}function getBoundingClientRect(e){let t={};if(isIE10$1())try{t=e.getBoundingClientRect();const o=getScroll(e,'top'),n=getScroll(e,'left');t.top+=o,t.left+=n,t.bottom+=o,t.right+=n}catch(e){}else t=e.getBoundingClientRect();const o={left:t.left,top:t.top,width:t.right-t.left,height:t.bottom-t.top},n='HTML'===e.nodeName?getWindowSizes():{},i=n.width||e.clientWidth||o.right-o.left,r=n.height||e.clientHeight||o.bottom-o.top;let p=e.offsetWidth-i,d=e.offsetHeight-r;if(p||d){const t=getStyleComputedProperty(e);p-=getBordersSize(t,'x'),d-=getBordersSize(t,'y'),o.width-=p,o.height-=d}return getClientRect(
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