sitespeed.io/lib/plugins/assets/assetsBySpeed.js

49 lines
1.2 KiB
JavaScript

'use strict';
class AssetsBySpeed {
constructor(maxSize) {
this.maxSize = maxSize;
this.items = [];
this.timing = 0;
}
add(asset, page, runPage) {
if (asset.timing > this.timing || this.items.length < this.maxSize) {
// TODO if this one is slower than an already existing item, replace that!
if (!this.items.some(assetInArray => assetInArray.url === asset.url)) {
this.items.push({
url: asset.url,
contentSize: asset.contentSize,
transferSize: asset.transferSize,
lastModification: asset.timeSinceLastModified,
cacheTime: asset.expires,
timing: asset.timing,
page,
runPage
});
}
if (this.items.length > this.maxSize) {
this.items.sort(function(asset, asset2) {
return asset2.timing - asset.timing;
});
if (this.items.length > this.maxSize) {
this.items.length = this.maxSize;
this.timing = this.items[this.maxSize - 1].timing;
}
}
}
}
getItems() {
this.items.sort(function(asset, asset2) {
return asset2.timing - asset.timing;
});
return this.items;
}
}
module.exports = AssetsBySpeed;