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[Tabs] scrollButtons have an empty button error in compliance tools #15646

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merged 4 commits into from May 12, 2019
Merged

[Tabs] scrollButtons have an empty button error in compliance tools #15646

merged 4 commits into from May 12, 2019

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elnikolinho
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@elnikolinho elnikolinho commented May 10, 2019

Closes #15371

Adds aria-label to TabScrollButtons, fixing an issue where accessibility tools pickup the buttons for not having discernible text

[Tabs] scrollButtons have an empty button error in compliance tools #15371
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mui-pr-bot commented May 10, 2019

Details of bundle changes.

Comparing: 048c9ce...de2ce8d

bundle parsed diff gzip diff prev parsed current parsed prev gzip current gzip
@material-ui/core +0.01% 🔺 +0.01% 🔺 317,107 317,135 86,643 86,651
@material-ui/core/Paper 0.00% 0.00% 67,869 67,869 20,172 20,172
@material-ui/core/Paper.esm 0.00% 0.00% 61,152 61,152 18,956 18,956
@material-ui/core/Popper 0.00% 0.00% 28,738 28,738 10,349 10,349
@material-ui/core/Textarea 0.00% 0.00% 5,513 5,513 2,384 2,384
@material-ui/core/TrapFocus 0.00% 0.00% 3,744 3,744 1,580 1,580
@material-ui/core/styles/createMuiTheme 0.00% 0.00% 15,960 15,960 5,779 5,779
@material-ui/core/useMediaQuery 0.00% 0.00% 2,106 2,106 974 974
@material-ui/lab 0.00% 0.00% 140,485 140,485 42,849 42,849
@material-ui/styles 0.00% 0.00% 51,354 51,354 15,189 15,189
@material-ui/system 0.00% 0.00% 14,458 14,458 4,175 4,175
Button 0.00% 0.00% 85,782 85,782 25,770 25,770
Modal 0.00% 0.00% 20,342 20,342 6,696 6,696
colorManipulator 0.00% 0.00% 3,904 3,904 1,543 1,543
docs.landing 0.00% 0.00% 51,215 51,215 11,373 11,373
docs.main 0.00% 0.00% 654,517 654,517 205,342 205,342
packages/material-ui/build/umd/material-ui.production.min.js +0.01% 🔺 +0.01% 🔺 296,014 296,042 84,043 84,052

Generated by 🚫 dangerJS against de2ce8d

@eps1lon eps1lon self-requested a review May 10, 2019 08:34
@oliviertassinari oliviertassinari added the component: tabs This is the name of the generic UI component, not the React module! label May 10, 2019
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oliviertassinari commented May 10, 2019

@elnikolinho A previous effort was done #15507. We couldn't reach a good solution.

This time, I have looked at how Ant Design, Vuetify and Element solve the problem, I have reproduced the same strategy.

@oliviertassinari oliviertassinari changed the title [Tabs] scrollButtons have an empty button error in compliance tools #15371 [Tabs] scrollButtons have an empty button error in compliance tools May 10, 2019
@@ -21,7 +21,7 @@ AccessibleTabScrollButton.propTypes = {
direction: PropTypes.string.isRequired,
};

const findScrollButton = (wrapper, direction) => wrapper.find(`button[aria-label="${direction}"]`);
const findScrollButton = (wrapper, direction) => wrapper.find(`span[aria-label="${direction}"]`);
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That looks like it's making a11y worse. I stand by #15507 (review). We shouldn't set aria-labels for app authors. If anything we should look at how labels can be provided.

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I have change the pull request, it doesn't set aria-labels for app authors. It makes the element disappear from the accessibility tools, they don't need it. How is it worse?
It's different in the test, the tests override the component to add an aria-label.

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a11y is not just for screen readers. non-impaired users make use of these features as well. This looks like it's just hiding an a11y issue instead of solving it.

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Do you have resources to support that the scroll buttons shouldn't be "hidden"? The only one I could find is how Antd, Vuetify and Element solve the problem.
I think that we should focus our energy on #6955.

@oliviertassinari oliviertassinari dismissed eps1lon’s stale review May 10, 2019 11:09

I believe you missed the update I have done to the original code. Could you look a second time? :)

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Hold on, I want to try something even cleaner.

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Thanks!

@elnikolinho elnikolinho deleted the TabScrollButton-Accessibility branch May 12, 2019 23:33
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[Tabs] scrollButtons have an empty button error in compliance tools
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