[base][docs] Export Base UI theme in stylesheet #39694

mnajdova · 2023-11-01T10:59:17Z

This PR exports the Base UI docs's theme in a separate styleshseet. Preview: https://deploy-preview-39694--material-ui.netlify.app/experiments/base/components-gallery/

For testing dark mode, select the "Enable automatic dark mode" option that you can find under More tools -> Rendering (on chrome):

Notes:

some of the components used the exported classes from the Base UI components, while some of the demos used custom classes on all slots. In this scenario I believe custom classes for all slots should be used, so that we can isolate these components from the rest of the docs. When exporting the theme so that it can be used externally we can use the default Base UI classes. We should decide if the same should apply for state classes, like Mui-disabled etc.
regarding implementation, the dark theme is at this point only re-defining some CSS variables

Maybe try in this PR:

make it render in iframe and avoid using global CSS
use Mui prefix for the class names

Next steps:

rename cyan to primary
make the theme exportable

mui-bot · 2023-11-01T11:02:46Z

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zanivan · 2023-11-01T17:22:42Z

I'll leave my two cents, but feel free to ignore it, since these seem questions that are above my developer skills to make the final call 😅

Do we use the Base UI class names? I used custom class names for now to avoid conflicts with the theme as the stylesheet is imported globally (we can likely easily find + replace this later anyways)

If it's something that we can easily replace later, I'd go with a custom class name for now, at least until we decide how we are going to take the next steps.

How do we want to define the dark mode styles? So far in the CSS demos we have conditions based on isDarkMode. I used the prefers-color-scheme: dark media query in the stylesheet for setting up some dark mode variables.

Sincerely, I don't know. Using the prefers-color-scheme seems to be the safest way for now, since it doesn't use any third party logic, I guess.

If the objective is just showcasing the theme, and customizing it, I don't see any issues on using System logics, be it the theme or the useTheme, like we currently do.

However, if we want to allow users to export and use this stylesheet in their projects, maybe we'll have to dig further to understand what's the best approach. Would it be a problem if the user had to install System package to use the useTheme? And would the user need to do anything else if he wants to use the stylesheet with isDarkMode?

siriwatknp · 2023-11-02T06:26:53Z

@mnajdova I might have missed some context here. Before I can provide any suggestions, may I ask what's the Base UI theme for?

mnajdova · 2023-11-02T08:42:24Z

@mnajdova I might have missed some context here. Before I can provide any suggestions, may I ask what's the Base UI theme for?

@siriwatknp for sure, sorry. The idea is that we would like to offer plain CSS themes for Base UI, that people can export and use in their apps. This will consist of three steps:

Extract the currently used styles for the plain CSS demos of Base UI in a standalone stylesheet
Define CSS tokens (via CSS variables) for altering the styles of the components.
Create a page showcasing all components and some playground for customizing the theme and exporter for the theme

The aim of this PR is just to extract the theme in a separate file (step 1.). However, to do so we need to align on some expectations on how we are going to generate the styles for the components (these are the questions I have in the PR description). For now, I just added the styles for two components, but it should show the intention.

If it's something that we can easily replace later, I'd go with a custom class name for now, at least until we decide how we are going to take the next steps.

It should be easily replaceable, and we won't be blocked by #39467. Once that issue is resolved, we can replace the class names.

If the objective is just showcasing the theme, and customizing it, I don't see any issues on using System logics, be it the theme or the useTheme, like we currently do.

However, if we want to allow users to export and use this stylesheet in their projects, maybe we'll have to dig further to understand what's the best approach. Would it be a problem if the user had to install System package to use the useTheme? And would the user need to do anything else if he wants to use the stylesheet with isDarkMode?

The objective here should be to make it available for people to export it, otherwise, I don't see why we would do this at all. If it is just for showcasing we don't need the hustle to export it to stylesheet and think of ways to make it customizable. I would avoid showcasing any MUI System related feature on this page, it is about showing how Base UI can be used fairly easily using plain CSS without any other dependencies.

zanivan · 2023-11-02T15:32:48Z

The objective here should be to make it available for people to export it, otherwise, I don't see why we would do this at all. If it is just for showcasing we don't need the hustle to export it to stylesheet and think of ways to make it customizable.

I agree 100%!

I would avoid showcasing any MUI System related feature on this page, it is about showing how Base UI can be used fairly easily using plain CSS without any other dependencies.

Just a clarifying question then: How can we make the theme switching feature exportable without relying on MUI System?

mnajdova · 2023-11-03T10:21:33Z

Just a clarifying question then: How can we make the theme switching feature exportable without relying on MUI System?

I assume we would generate the CSS vars required and append them on the stylesheet before generating the file. We don't need a dependency on the system for this.

michaldudak · 2023-11-03T10:42:13Z

Do we use the Base UI class names?

Ideally, yes, so the components don't require any customization. I just started working on #39467, so we'll have class names that don't clash with Material UI.

How do we want to define the dark mode styles?

prefers-dark-mode is the least opinionated and the most standards-compliant, so I'd stick to it for these demos.

I would avoid showcasing any MUI System related feature on this page

100% agree - this should be just Base UI + plain CSS.

docs/pages/_app.js

mnajdova · 2023-11-03T11:49:32Z

Ideally, yes, so the components don't require any customization. I just started working on #39467, so we'll have class names that don't clash with Material UI.

Alright, until we have this feature, I will use the custom class name I have now, and we'll replace it later with the Base UI specific class name.

docs/data/base/components/number-input/NumberInputIntroduction/css/index.js

docs/data/base/components/number-input/NumberInputIntroduction/css/index.tsx

Signed-off-by: Marija Najdova <[email protected]>

michaldudak · 2023-11-08T09:31:43Z

Alright, until we have this feature, I will use the custom class name I have now, and we'll replace it later with the Base UI specific class name.

Actually, if we use a built-in Base UI class names, all our demos will be styled using this stylesheet, which is not ideal. We should consider placing this gallery on a page with separate CSS, so the stylesheet doesn't affect everything else on the docs.

- Fixed TextArea box-shadow and border radi - Fixed font-family import on TablePagination - Fixed Switch style and sizes

zanivan · 2023-11-10T17:35:50Z

As we discussed earlier today, I've reviewed the cyan palette and converted them to HSL values, making it easy to create various palettes by adjusting the HUE. The CSS stylesheet is already updated with the HEX values. Here are the HSL values:

50: hsl(189, 76, 95)
100: hsl(189, 70, 86)
200: hsl(189, 59, 75)
300: hsl(189, 49, 60)
400: hsl(189, 68, 38)
500: hsl(189, 76, 21)
600: hsl(189, 80, 18)
700: hsl(189, 84, 15)
800: hsl(189, 86, 12)
900: hsl(189, 90, 8)

mnajdova · 2023-11-14T07:35:24Z

Actually, if we use a built-in Base UI class names, all our demos will be styled using this stylesheet, which is not ideal. We should consider placing this gallery on a page with separate CSS, so the stylesheet doesn't affect everything else on the docs.

I see two potential ways of how to do this

we can use CSS modules and add a classname on the root div and bump the specificity of each class to be a child of the div (we can remove this when exporting the stylesheet).
same as ☝️ but still depend on the global stylesheet as now

I couldn't find a way to circumvent the Next.js error that global styles are imported outside of _app.js, so I am keeping the page for now as is.

Anyways, I would like to merge this one as is, and iterate in follow up PRs.

oliviertassinari

What's the use case for base-theme.css?

oliviertassinari · 2023-11-20T18:21:28Z

docs/pages/_app.js

@@ -29,6 +29,7 @@ import findActivePage from 'docs/src/modules/utils/findActivePage';
 import { pathnameToLanguage } from 'docs/src/modules/utils/helpers';
 import getProductInfoFromUrl from 'docs/src/modules/utils/getProductInfoFromUrl';
 import './global.css';
+import './base-theme.css';


https://nextjs.org/docs/app/building-your-application/styling/css-modules

Suggested change

import './base-theme.css';

// TODO app directory: move import to relevant page

import './base-theme.css';

oliviertassinari · 2023-11-20T18:25:05Z

docs/pages/base-theme.css

+  background-color: var(--GalleryButton-disabled-background-color, var(--grey-200));
+  color: var(--GalleryButton-disabled-color, var(--grey-700));
+  border: 0;
+  cursor: not-allowed;


Against the cursor policy we use so far

Suggested change

cursor: not-allowed;

cursor: default;

x the other cases

oliviertassinari · 2023-11-20T18:25:56Z

docs/pages/base-theme.css

+  box-shadow: 0 0 0 4px var(--GalleryButton-focusVisible-boxShadow-color, var(--cyan-200));
+  outline: none;
+}
+.GalleryButton:disabled {


Doesn't work with custom hosts

Suggested change

.GalleryButton:disabled {

.GalleryButton.Mui-disabled {

wip: Badge, Button

3926a18

mnajdova added docs Improvements or additions to the documentation package: base-ui Specific to @mui/base labels Nov 1, 2023

mnajdova requested a review from michaldudak November 3, 2023 10:27

michaldudak reviewed Nov 3, 2023

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docs/pages/_app.js Show resolved Hide resolved

mnajdova and others added 8 commits November 6, 2023 11:46

input, menu, numberinput

61f7c1d

popper, popup

74a3e03

select

96156e6

slider, snackbar

737f34d

menu style fix

e999b51

switch

83b5eab

Tiny fix to button box-shadow

370e103

tabs, textarea, table pagination

18048ab

mnajdova commented Nov 7, 2023

View reviewed changes

docs/data/base/components/number-input/NumberInputIntroduction/css/index.js Outdated Show resolved Hide resolved

mnajdova commented Nov 7, 2023

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docs/data/base/components/number-input/NumberInputIntroduction/css/index.tsx Outdated Show resolved Hide resolved

Apply suggestions from code review

eb57a6a

Signed-off-by: Marija Najdova <[email protected]>

mnajdova marked this pull request as ready for review November 7, 2023 12:45

mnajdova added 2 commits November 7, 2023 13:48

fixes & cleanup

a3a0ed0

lint & prettier

6afafe9

Stray design fixes

239c591

- Fixed TextArea box-shadow and border radi - Fixed font-family import on TablePagination - Fixed Switch style and sizes

Update color palette

5a2e8f4

prettier

1207bc9

mnajdova requested a review from michaldudak November 14, 2023 12:33

michaldudak approved these changes Nov 15, 2023

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mnajdova merged commit cec367a into mui:master Nov 15, 2023

oliviertassinari mentioned this pull request Nov 20, 2023

[docs] Fix nested CSS warning #39932

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oliviertassinari reviewed Nov 20, 2023

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zanivan mentioned this pull request Dec 5, 2023

[base-ui] Provide a plain CSS theme #40108

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[base][docs] Export Base UI theme in stylesheet #39694

[base][docs] Export Base UI theme in stylesheet #39694

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	import './base-theme.css';
	// TODO app directory: move import to relevant page
	import './base-theme.css';

[base][docs] Export Base UI theme in stylesheet #39694

[base][docs] Export Base UI theme in stylesheet #39694

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