@xysfe/actui/es/Pdfjs/index.js

A fantastic mobile ui lib implement by Vue

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e=this;if(this.container&&this.inited&&0!==this.pageArr.length&&this.scollRef&&!this.isZooming){var t=this.scollRef.scale||1;this.currentScale=t;for(var r=this.container.clientHeight,n=Math.abs(this.scollRef.y||0),o=0,s=0,c=0;c<this.pageArr.length;c++){var l=this.pageArr[c];if(l){var f=l.pageHeight*this.currentScale,h=s;if(s+f>=n&&h<=n+r){o=c;break}s+=f}}for(var d=Math.max(0,o-this.preloadThreshold),p=Math.min(this.pageArr.length-1,o+this.preloadThreshold),v=new u.a,g=d;g<=p;g++)this.pageArr[g]&&this.pageArr[g].base64Data&&v.add(g);console.log("[scale="+this.currentScale+"] 当前视口页面: "+(o+1)+", 需要加载图片: ["+(d+1)+" - "+(p+1)+"], 已有base64: "+a()(v).map(function(e){return e+1}).join(", ")+", 当前已加载图片数: "+this.visibleImageIndices.size+"/"+this.maxVisibleImages);for(var y=[],m=this.visibleImageIndices,b=Array.isArray(m),_=0,m=b?m:i()(m);;){var A;if(b){if(_>=m.length)break;A=m[_++]}else{if(_=m.next(),_.done)break;A=_.value}var w=A;v.has(w)||y.push(w)}y.forEach(function(t){var 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