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clients(psi): render treemap button #12570

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May 27, 2021
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clients(psi): render treemap button #12570

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clients(psi): render treemap button
connorjclark May 26, 2021
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connorjclark May 27, 2021
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Update lighthouse-core/report/html/renderer/psi.js
connorjclark May 27, 2021
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24 changes: 22 additions & 2 deletions lighthouse-core/report/html/renderer/psi.js
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Original file line number Diff line number Diff line change
Expand Up @@ -16,8 +16,7 @@
*/
'use strict';

/* globals self DOM PerformanceCategoryRenderer Util I18n DetailsRenderer ElementScreenshotRenderer */

/* globals self DOM PerformanceCategoryRenderer Util I18n DetailsRenderer ElementScreenshotRenderer ReportUIFeatures */

/**
* Returns all the elements that PSI needs to render the report
Expand Down Expand Up @@ -81,6 +80,9 @@ function prepareLabData(LHResult, document) {
const clonedScoreTemplate = dom.cloneTemplate('#tmpl-lh-scorescale', dom.document());
const scoreScaleEl = dom.find('.lh-scorescale', clonedScoreTemplate);

const reportUIFeatures = new ReportUIFeatures(dom);
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this class's scope is starting to get scary now 😆

my trail of verification that this doesn't do anything we don't want it to

  • hm, we need an instance of UIFeatures to addButton I wonder why it's not static.
  • oh it just needs _dom/_document. what else does the constructor do?
  • nothing really, initFeatures does the heavy lifting.
  • why is reportUIFeatures.json = needed then? AFAICT it isn't

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this class's scope is starting to get scary now 😆

yes, definitely :) it needs a refactor (e.g. addButton could just be on dom itself or in performanceCategoryRenderer if we really want it scoped just to addMetricsSectionButton), but since I was the one who suggested not doing #12327 before the 8.0 release I figured this was fair and we can fix it up afterwards :)

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  • why is reportUIFeatures.json = needed then? AFAICT it isn't

this seems right

And we could make addButton static now and pass dom in (initFeatures would just pass it along too), but that might take concurrent DevTools changes?

reportUIFeatures.json = lhResult;

/** @param {HTMLElement} reportEl */
const installFeatures = (reportEl) => {
if (fullPageScreenshot) {
Expand Down Expand Up @@ -109,6 +111,17 @@ function prepareLabData(LHResult, document) {
ElementScreenshotRenderer.installFullPageScreenshot(
screenshotEl, fullPageScreenshot.screenshot);
}

const showTreemapApp =
lhResult.audits['script-treemap-data'] && lhResult.audits['script-treemap-data'].details;
if (showTreemapApp) {
reportUIFeatures.addButton({
container: reportEl.querySelector('.lh-audit-group--metrics'),
text: Util.i18n.strings.viewTreemapLabel,
icon: 'treemap',
onClick: () => ReportUIFeatures.openTreemap(lhResult, 'url'),
});
}
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more copy/paste for now.

};

return {scoreGaugeEl, perfCategoryEl, finalScreenshotDataUri, scoreScaleEl, installFeatures};
Expand All @@ -126,6 +139,13 @@ function _getFinalScreenshot(perfCategory) {
return details.data;
}

// Defined by lib/file-namer.js, but that file does not exist in PSI. PSI doesn't use it, but
// needs some basic definition so closure compiler accepts report-ui-features.js
// @ts-expect-error
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// eslint-disable-next-line no-unused-vars
function getFilenamePrefix(lhr) {
}

if (typeof module !== 'undefined' && module.exports) {
module.exports = prepareLabData;
} else {
Expand Down
7 changes: 3 additions & 4 deletions lighthouse-core/report/html/renderer/report-ui-features.js
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Expand Up @@ -181,14 +181,14 @@ class ReportUIFeatures {
}

/**
* @param {{text: string, icon?: string, onClick: () => void}} opts
* @param {{container?: Element, text: string, icon?: string, onClick: () => void}} opts
*/
addButton(opts) {
const metricsEl = this._document.querySelector('.lh-audit-group--metrics');
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// Not supported without metrics group.
const containerEl = opts.container || metricsEl;
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@connorjclark connorjclark May 26, 2021 •
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report-ui-features doesn't have a reference to the root report el, and psi has 2 reports on the page (and not even attached to DOM when installFeatures is called..) so we need a container option to specify where the element should go.

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this would make a great comment on the container: line up above, just sayin' :D

(I stared at the container querySelector being identical to the default for a bit until I scrolled down a smidge further to this comment)

if (!metricsEl) return;

let buttonsEl = metricsEl.querySelector('.lh-buttons');
let buttonsEl = containerEl.querySelector('.lh-buttons');
if (!buttonsEl) buttonsEl = this._dom.createChildOf(metricsEl, 'div', 'lh-buttons');

const classes = [
Expand Down Expand Up @@ -551,7 +551,6 @@ class ReportUIFeatures {
* Opens a new tab to the treemap app and sends the JSON results using postMessage.
* @param {LH.Result} json
* @param {'postMessage'|'url'} method
* @protected
*/
static openTreemap(json, method = 'postMessage') {
const treemapData = json.audits['script-treemap-data'].details;
Expand Down
4 changes: 4 additions & 0 deletions lighthouse-core/test/report/html/renderer/psi-test.js
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Expand Up @@ -21,6 +21,8 @@ const CriticalRequestChainRenderer =
require('../../../../report/html/renderer/crc-details-renderer.js');
const ElementScreenshotRenderer =
require('../../../../report/html/renderer/element-screenshot-renderer.js');
const ReportUIFeatures =
require('../../../../report/html/renderer/report-ui-features.js');

const {itIfProtoExists, sampleResultsRoundtripStr} = testUtils.getProtoRoundTrip();
const sampleResultsStr = fs.readFileSync(__dirname + '/../../../results/sample_v2.json', 'utf-8');
Expand Down Expand Up @@ -48,6 +50,7 @@ describe('DOM', () => {
global.PerformanceCategoryRenderer = PerformanceCategoryRenderer;
global.CriticalRequestChainRenderer = CriticalRequestChainRenderer;
global.ElementScreenshotRenderer = ElementScreenshotRenderer;
global.ReportUIFeatures = ReportUIFeatures;

const {window} = new jsdom.JSDOM(TEMPLATE_FILE);
document = window.document;
Expand All @@ -62,6 +65,7 @@ describe('DOM', () => {
global.PerformanceCategoryRenderer = undefined;
global.CriticalRequestChainRenderer = undefined;
global.ElementScreenshotRenderer = undefined;
global.ReportUIFeatures = undefined;
});

describe('psi prepareLabData helpers', () => {
Expand Down