DMleadgen
46d973904b
Next.js website for Rocky Mountain Vending company featuring: - Product catalog with Stripe integration - Service areas and parts pages - Admin dashboard with Clerk authentication - SEO optimized pages with JSON-LD structured data Co-authored-by: Cursor <cursoragent@cursor.com>
68 lines
No EOL
2.9 KiB
Text
68 lines
No EOL
2.9 KiB
Text
// Copyright 2024 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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import * as Core from '../core/core.js';
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import * as Graph from '../graph/graph.js';
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import { Metric, } from './Metric.js';
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// Any CPU task of 20 ms or more will end up being a critical long task on mobile
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const CRITICAL_LONG_TASK_THRESHOLD = 20;
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class Interactive extends Metric {
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static get coefficients() {
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return {
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intercept: 0,
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optimistic: 0.45,
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pessimistic: 0.55,
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};
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}
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static getOptimisticGraph(dependencyGraph) {
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// Adjust the critical long task threshold for microseconds
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const minimumCpuTaskDuration = CRITICAL_LONG_TASK_THRESHOLD * 1000;
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return dependencyGraph.cloneWithRelationships(node => {
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// Include everything that might be a long task
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if (node.type === Graph.BaseNode.types.CPU) {
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return node.duration > minimumCpuTaskDuration;
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}
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// Include all scripts and high priority requests, exclude all images
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const isImage = node.request.resourceType === 'Image';
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const isScript = node.request.resourceType === 'Script';
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return (!isImage && (isScript || node.request.priority === 'High' || node.request.priority === 'VeryHigh'));
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});
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}
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static getPessimisticGraph(dependencyGraph) {
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return dependencyGraph;
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}
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static getEstimateFromSimulation(simulationResult, extras) {
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if (!extras.lcpResult) {
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throw new Core.LanternError('missing lcpResult');
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}
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const lastTaskAt = Interactive.getLastLongTaskEndTime(simulationResult.nodeTimings);
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const minimumTime = extras.optimistic ? extras.lcpResult.optimisticEstimate.timeInMs :
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extras.lcpResult.pessimisticEstimate.timeInMs;
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return {
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timeInMs: Math.max(minimumTime, lastTaskAt),
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nodeTimings: simulationResult.nodeTimings,
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};
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}
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static compute(data, extras) {
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const lcpResult = extras?.lcpResult;
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if (!lcpResult) {
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throw new Core.LanternError('LCP is required to calculate the Interactive metric');
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}
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const metricResult = super.compute(data, extras);
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metricResult.timing = Math.max(metricResult.timing, lcpResult.timing);
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return metricResult;
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}
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static getLastLongTaskEndTime(nodeTimings, duration = 50) {
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return Array.from(nodeTimings.entries())
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.filter(([node, timing]) => {
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if (node.type !== Graph.BaseNode.types.CPU) {
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return false;
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}
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return timing.duration > duration;
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})
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.map(([_, timing]) => timing.endTime)
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.reduce((max, x) => Math.max(max || 0, x || 0), 0);
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}
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}
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export { Interactive };
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//# sourceMappingURL=Interactive.js.map |