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>
87 lines
3 KiB
Text
87 lines
3 KiB
Text
/**
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* @license
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* Copyright 2016 Google LLC
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* SPDX-License-Identifier: Apache-2.0
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*/
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import {Audit} from './audit.js';
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import {ViewportMeta} from '../computed/viewport-meta.js';
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import * as i18n from '../lib/i18n/i18n.js';
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const UIStrings = {
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/** Title of a Lighthouse audit that provides detail on the viewport meta tag in a web page's html. This descriptive title is shown to users when a viewport tag is set and configured. */
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title: 'Has a `<meta name="viewport">` tag with `width` or `initial-scale`',
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/** Title of a Lighthouse audit that provides detail on the viewport meta tag in a web page's html. This descriptive title is shown to users when a viewport tag is not set or configured. */
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failureTitle: 'Does not have a `<meta name="viewport">` tag with `width` ' +
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'or `initial-scale`',
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/** Description of a Lighthouse audit that tells the user why they should have a viewport meta tag in their html. This is displayed after a user expands the section to see more. No character length limits. The last sentence starting with 'Learn' becomes link text to additional documentation. */
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description: 'A `<meta name="viewport">` not only optimizes your app for mobile screen sizes, ' +
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'but also prevents [a 300 millisecond delay to user input](https://developer.chrome.com/blog/300ms-tap-delay-gone-away/). ' +
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'[Learn more about using the viewport meta tag](https://developer.chrome.com/docs/lighthouse/pwa/viewport/).',
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/** Explanatory message stating that no viewport meta tag exists on the page. */
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explanationNoTag: 'No `<meta name="viewport">` tag found',
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};
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const str_ = i18n.createIcuMessageFn(import.meta.url, UIStrings);
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class Viewport extends Audit {
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/**
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* @return {LH.Audit.Meta}
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*/
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static get meta() {
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return {
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id: 'viewport',
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title: str_(UIStrings.title),
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failureTitle: str_(UIStrings.failureTitle),
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description: str_(UIStrings.description),
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guidanceLevel: 3,
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requiredArtifacts: ['MetaElements'],
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scoreDisplayMode: Audit.SCORING_MODES.METRIC_SAVINGS,
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};
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}
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/**
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* @param {LH.Artifacts} artifacts
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* @param {LH.Audit.Context} context
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* @return {Promise<LH.Audit.Product>}
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*/
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static async audit(artifacts, context) {
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const viewportMeta = await ViewportMeta.request(artifacts.MetaElements, context);
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let inpSavings = 300;
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if (!viewportMeta.hasViewportTag) {
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return {
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score: 0,
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explanation: str_(UIStrings.explanationNoTag),
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metricSavings: {
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INP: inpSavings,
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},
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};
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}
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if (viewportMeta.isMobileOptimized) {
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inpSavings = 0;
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}
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/** @type {LH.Audit.Details.DebugData|undefined} */
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let details;
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if (viewportMeta.rawContentString !== undefined) {
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details = {
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type: 'debugdata',
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viewportContent: viewportMeta.rawContentString,
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};
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}
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return {
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score: Number(viewportMeta.isMobileOptimized),
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metricSavings: {
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INP: inpSavings,
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},
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warnings: viewportMeta.parserWarnings,
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details,
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};
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}
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}
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export default Viewport;
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export {UIStrings};
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