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Disable animations for UI regression runs #5

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merged 5 commits into from
Apr 21, 2022
Merged

Disable animations for UI regression runs #5

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55ca797
Disable animations for UI regression runs
jdlrobson Apr 19, 2022
911b623
Update src/engine-scripts/puppet/jsReady.js
jdlrobson Apr 20, 2022
2f80b61
Use setInterval to evaluate
jdlrobson Apr 20, 2022
ed405db
Wrap rAF in page.evaluate callback
Apr 21, 2022
3378f7b
Revise rAF statement
Apr 21, 2022
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24 changes: 24 additions & 0 deletions src/engine-scripts/puppet/jsReady.js
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Original file line number Diff line number Diff line change
@@ -0,0 +1,24 @@
module.exports = async (page) => {
await page.emulateMediaFeatures([
{ name: 'prefers-reduced-motion', value: 'reduce' },
]);
await page.evaluate( () => {
window.dispatchEvent( new Event( 'resize' ) );
const skin = mw.config.get( 'skin' );
let moduleName;
switch( skin ) {
case 'vector-2022':
moduleName = 'skins.vector.js';
break;
case 'vector':
moduleName = 'skins.vector.legacy.js';
break;
default:
return true;
}
return mw.loader.getState( moduleName ) === 'ready';
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@nicholasray nicholasray Apr 20, 2022 •
edited
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Should this be a promise? e.g.

return mw.loader.using( moduleName )

As it stands, it doesn't look like its waiting for the module to finish loading. It looks like it's only checking its current state?

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No using would have side effects.

I think I'm getting confused by the evaluate method. I think a setInterval that resolves when this is true is perhaps what I need?

My understanding is evaluate has to resolve to true to avoid timeouts.

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The latest looks fine to me. I'm curious where you heard that it needs to resolve to true though? The puppeteer docs have examples that don't strictly return true e.g. https://pptr.dev/#?product=Puppeteer&version=v13.6.0&show=api-pageevaluatepagefunction-args

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When I was working on the scroll in the other patch, the scroll was synchronois and I was getting time outs if I didn't return something and didn't use an asynchronous function inside evaluate. I have found the documentation a little frustrating as it hasn't matched up with what I've been seeing

});

// wait for animation frame or two.
await page.waitForTimeout(2000);
};
3 changes: 3 additions & 0 deletions src/engine-scripts/puppet/onReady.js
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Expand Up @@ -9,5 +9,8 @@ module.exports = async (page, scenario, vp) => {
await require('./sidebarState')(page, hashtags);
await require('./userMenuState')(page, hashtags);
}

// Make sure the main skin JavaScript module has loaded.
await require('./jsReady')(page);
// add more ready handlers here...
};