var CONFIG={auto:true,text:"Top",right:15,bottom:15,offset:500};var install=function(hook,vm){var opts=vm.config.scrollToTop||CONFIG;CONFIG.auto=opts.auto&&typeof opts.auto==="boolean"?opts.auto:CONFIG.auto;CONFIG.text=opts.text&&typeof opts.text==="string"?opts.text:CONFIG.text;CONFIG.right=opts.right&&typeof opts.right==="number"?opts.right:CONFIG.right;CONFIG.bottom=opts.bottom&&typeof opts.bottom==="number"?opts.bottom:CONFIG.bottom;CONFIG.offset=opts.offset&&typeof opts.offset==="number"?opts.offset:CONFIG.offset;var onScroll=function(e){if(!CONFIG.auto){return}var offset=window.document.documentElement.scrollTop;var $scrollBtn=Docsify.dom.find("span.scroll-to-top");$scrollBtn.style.display=offset>=CONFIG.offset?"block":"none"};hook.mounted(function(){var scrollBtn=document.createElement("span");scrollBtn.className="scroll-to-top";scrollBtn.style.display=CONFIG.auto?"none":"block";scrollBtn.style.overflow="hidden";scrollBtn.style.position="fixed";scrollBtn.style.right=CONFIG.right+"px";scrollBtn.style.bottom=CONFIG.bottom+"px";scrollBtn.style.width="50px";scrollBtn.style.height="50px";scrollBtn.style.background="white";scrollBtn.style.color="#666";scrollBtn.style.border="1px solid #ddd";scrollBtn.style.borderRadius="4px";scrollBtn.style.lineHeight="42px";scrollBtn.style.fontSize="16px";scrollBtn.style.textAlign="center";scrollBtn.style.boxShadow="0px 0px 6px #eee";scrollBtn.style.cursor="pointer";var textNode=document.createTextNode(CONFIG.text);scrollBtn.appendChild(textNode);document.body.appendChild(scrollBtn);window.addEventListener("scroll",onScroll);scrollBtn.onclick=function(e){e.stopPropagation();var step=window.scrollY/15;var scroll=function(){window.scrollTo(0,window.scrollY-step);if(window.scrollY>0){setTimeout(scroll,15)}};scroll()}})};$docsify.plugins=[].concat(install,$docsify.plugins);
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