Module 45722

function(t,e,r){"use strict";var n=r(1140),i=r(505122),o=r(586348),a=r(797686);function s(t,e){for(var r=1/0,n=1/0,i=-1/0,o=-1/0,a=0;a<t.length;a++){var s=t[a];0!==s.width&&1!==s.width&&(r=Math.min(r,s.top),n=Math.min(n,s.bottom),i=Math.max(i,s.top),o=Math.max(o,s.bottom))}return i<=n&&i-r<e&&o-n<e}t.exports=function(t){t.collapsed||a(!1);var e,r,u,c,l,f,p=(t=t.cloneRange()).startContainer;1!==p.nodeType&&(p=p.parentNode);var h=(r=getComputedStyle(e=p),(c=(u=i(e)).createElement("div")).style.fontFamily=r.fontFamily,c.style.fontSize=r.fontSize,c.style.fontStyle=r.fontStyle,c.style.fontWeight=r.fontWeight,c.style.lineHeight=r.lineHeight,c.style.position="absolute",c.textContent="M",(l=u.body)||a(!1),l.appendChild(c),f=c.getBoundingClientRect(),l.removeChild(c),f.height),d=t.endContainer,g=t.endOffset;for(t.setStart(t.startContainer,0);s(o(t),h)&&(d=t.startContainer,g=t.startOffset,d.parentNode||a(!1),t.setStartBefore(d),1!==d.nodeType||"inline"===getComputedStyle(d).display););for(var y=d,v=g-1;;){for(var m=y.nodeValue,_=v;_>=0;_--)if(!(null!=m&&_>0&&n.isSurrogatePair(m,_-1)))if(t.setStart(y,_),s(o(t),h))d=y,g=_;else break;if(-1===_||0===y.childNodes.length)break;v=function(t){switch(t.nodeType){case Node.DOCUMENT_TYPE_NODE:return 0;case Node.TEXT_NODE:case Node.PROCESSING_INSTRUCTION_NODE:case Node.COMMENT_NODE:return t.length;default:return t.childNodes.length}}(y=y.childNodes[_])}return t.setStart(d,g),t}}