2 lines
1.4 KiB
JavaScript
2 lines
1.4 KiB
JavaScript
FontDetect=function(){function e(){if(!n){n=!0;var e=document.body,t=document.body.firstChild,i=document.createElement("div");i.id="fontdetectHelper",r=document.createElement("span"),r.innerText="abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ",i.appendChild(r),e.insertBefore(i,t),i.style.position="absolute",i.style.visibility="hidden",i.style.top="-200px",i.style.left="-100000px",i.style.width="100000px",i.style.height="200px",i.style.fontSize="100px"}}function t(e,t){return e instanceof Element?window.getComputedStyle(e).getPropertyValue(t):window.jQuery?$(e).css(t):""}var n=!1,i=["serif","sans-serif","monospace","cursive","fantasy"],r=null;return{onFontLoaded:function(t,i,r,o){if(t){var s=o&&o.msInterval?o.msInterval:100,a=o&&o.msTimeout?o.msTimeout:2e3;if(i||r){if(n||e(),this.isFontLoaded(t))return void(i&&i(t));var l=this,f=(new Date).getTime(),d=setInterval(function(){if(l.isFontLoaded(t))return clearInterval(d),void i(t);var e=(new Date).getTime();e-f>a&&(clearInterval(d),r&&r(t))},s)}}},isFontLoaded:function(t){var o=0,s=0;n||e();for(var a=0;a<i.length;++a){if(r.style.fontFamily='"'+t+'",'+i[a],o=r.offsetWidth,a>0&&o!=s)return!1;s=o}return!0},whichFont:function(e){for(var n=t(e,"font-family"),r=n.split(","),o=r.shift();o;){o=o.replace(/^\s*['"]?\s*([^'"]*)\s*['"]?\s*$/,"$1");for(var s=0;s<i.length;s++)if(o==i[s])return o;if(this.isFontLoaded(o))return o;o=r.shift()}return null}}}();
|