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Fluid typography: add configurable settings for minimum font size to theme.json #42489

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merged 15 commits into from
Dec 15, 2022

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@ramonjd ramonjd commented Jul 18, 2022

What?

Part of

Follows on from #39529 by adding configurable fluid font-size settings.

The first setting to be added is settings.typography.fluid.minFontSize, which sets the lower bound at which custom font sizes are converted to clamp values.

The current, hard-coded value is 14px.

Why?

The hard-coded value of 14px may not be appropriate for some theme designs.

How?

By checking global fluid typography for values.

Testing Instructions

Play with minFontSize in the fluid config settings (px/rem/em units only) and ensure that custom font sizes are only clamp above the value you set.

{
	"version": 2,
	"settings": {
		"appearanceTools": true,
		"layout": {
			"contentSize": "840px",
			"wideSize": "1100px"
		},
		"typography": {
			"fluid": {
				"minFontSize": "16px"
			}
		}
	}
}
sample editor code
<!-- wp:heading {"level":1,"style":{"typography":{"fontSize":"145px"}}} -->
<h1 class="wp-block-heading" style="font-size:145px">Heading 1</h1>
<!-- /wp:heading -->

<!-- wp:paragraph {"style":{"typography":{"fontSize":"15px"}}} -->
<p style="font-size:35px">Start with the basic building block of all narrative. Start with the basic building block of all narrative.Start with the basic building block of all narrative.Start with the basic building block of all narrative.Start with the basic building block of all narrative.Start with the basic building block of all narrative.Start with the basic building block of all narrative.Start with the basic building block of all narrative.Start with the basic building block of all narrative.Start with the basic building block of all narrative.Start with the basic building block of all narrative.Start with the basic building block of all narrative.Start with the basic building block of all narrative.Start with the basic building block of all narrative.Start with the basic building block of all narrative.Start with the basic building block of all narrative.Start with the basic building block of all narrative.</p>
<!-- /wp:paragraph -->

<!-- wp:search {"label":"Search","buttonText":"Search","style":{"typography":{"fontSize":"82px"}}} /-->

Run the tests!

npm run test:unit:php -- --filter WP_Block_Supports_Typography_Test
npm run test:unit packages/block-editor/src/components/font-sizes/test/fluid-utils.js
npm run test:unit packages/edit-site/src/components/global-styles/test/typography-utils.js
npm run test:unit packages/block-editor/src/hooks/test/use-typography-props.js

See also

@ramonjd ramonjd added [Type] Enhancement A suggestion for improvement. Needs Technical Feedback Needs testing from a developer perspective. [Type] Experimental Experimental feature or API. Global Styles Anything related to the broader Global Styles efforts, including Styles Engine and theme.json labels Jul 18, 2022
@ramonjd ramonjd self-assigned this Jul 18, 2022
@ramonjd ramonjd requested a review from ajlende as a code owner July 18, 2022 06:13
@ramonjd ramonjd force-pushed the add/block-supports-fluid-fontsize-config branch from dd173b3 to 7076ce9 Compare July 18, 2022 06:25
@ramonjd ramonjd added the [Feature] Typography Font and typography-related issues and PRs label Jul 26, 2022
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github-actions bot commented Oct 27, 2022

Size Change: +101 B (0%)

Total Size: 1.32 MB

Filename Size Change
build/block-editor/index.min.js 182 kB +60 B (0%)
build/edit-site/index.min.js 63.6 kB +41 B (0%)
ℹ️ View Unchanged
Filename Size
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compressed-size-action

@ramonjd ramonjd force-pushed the add/block-supports-fluid-fontsize-config branch from d4181e4 to a998a1b Compare December 15, 2022 21:33
@ramonjd ramonjd merged commit 7973d9c into trunk Dec 15, 2022
@ramonjd ramonjd deleted the add/block-supports-fluid-fontsize-config branch December 15, 2022 23:26
@github-actions github-actions bot added this to the Gutenberg 14.9 milestone Dec 15, 2022
pento pushed a commit to WordPress/wordpress-develop that referenced this pull request Jan 24, 2023
…t_typography_font_size_value().

In `wp_get_typography_font_size_value()`, adds support for using a minimum font size for fluid typography when defined in a theme's `theme.json` file.

Reference:
* Part of [WordPress/gutenberg#42489 Gutenberg PR 42489]

Follow-up to [54497], [54260].

Props andrewserong, ramonopoly, hellofromTonya, joen.
Fixes #57529.

git-svn-id: https://develop.svn.wordpress.org/trunk@55133 602fd350-edb4-49c9-b593-d223f7449a82
markjaquith pushed a commit to markjaquith/WordPress that referenced this pull request Jan 24, 2023
…t_typography_font_size_value().

In `wp_get_typography_font_size_value()`, adds support for using a minimum font size for fluid typography when defined in a theme's `theme.json` file.

Reference:
* Part of [WordPress/gutenberg#42489 Gutenberg PR 42489]

Follow-up to [54497], [54260].

Props andrewserong, ramonopoly, hellofromTonya, joen.
Fixes #57529.
Built from https://develop.svn.wordpress.org/trunk@55133


git-svn-id: http://core.svn.wordpress.org/trunk@54666 1a063a9b-81f0-0310-95a4-ce76da25c4cd
github-actions bot pushed a commit to platformsh/wordpress-performance that referenced this pull request Jan 24, 2023
…t_typography_font_size_value().

In `wp_get_typography_font_size_value()`, adds support for using a minimum font size for fluid typography when defined in a theme's `theme.json` file.

Reference:
* Part of [WordPress/gutenberg#42489 Gutenberg PR 42489]

Follow-up to [54497], [54260].

Props andrewserong, ramonopoly, hellofromTonya, joen.
Fixes #57529.
Built from https://develop.svn.wordpress.org/trunk@55133


git-svn-id: https://core.svn.wordpress.org/trunk@54666 1a063a9b-81f0-0310-95a4-ce76da25c4cd
@andrewserong andrewserong added the Needs Dev Note Requires a developer note for a major WordPress release cycle label Feb 10, 2023
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Dev note for 6.2

Note: this feature might not need it's own standalone dev note if it looks like it could be combined with other features, as it's a fairly small feature.


Fluid typography minimum font size

Following on from the fluid typography settings that were introduced in WordPress 6.1, WordPress 6.1.1 introduced a hard-coded minimum for the fluid typography rules of 14px, to ensure that the generated typography rules would not result in font sizes that were too smaller for readability in narrower viewports.

In WordPress 6.2, themes can define their own minimum font size for fluid typography rules. Depending on the theme's requirements, sometimes the desired minimum font size value might be greater or less than the provided default of 14px. When used, the minimum font size will result in any font-sizes used that are equal to or less than the minimum being output directly as that font size. For font sizes larger than the minimum font size, the minimum font size will be used as the floor of the fluid typography calculated rule.

How to use minimum font size in your theme

Within theme.json, the property settings.typography.fluid now accepts an object in addition to the existing boolean value. Setting fluid to true will use the default minimum font size of 14px, however themes can now provide an object with a minFontSize property instead:

{
	"settings": {
		"typography": {
			"fluid": {
				"minFontSize": "15px"
			}

With the minFontSize property set to 15px in the above example, the output of a paragraph block set to 15px font size will be as follows with no fluid rules applied:

<p style="font-size:15px">A paragraph at 15px</p>

The output for a paragraph block set to 16px will result in the fluid rules being applied, but with 15px as the minimum font-size:

<p style="font-size:clamp(15px, 0.938rem + ((1vw - 7.68px) * 0.12), 16px);">A paragraph at 16px</p>

Related reading


@bph here's a draft dev note for the fluid typography rules changes, I think this PR wasn't listed in the dev notes list, so I'll add it over there, too. This dev note also implicitly covers the changes from #45536, I believe.

@andrewserong andrewserong mentioned this pull request Feb 10, 2023
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@bph bph added has dev note when dev note is done (for upcoming WordPress release) and removed Needs Dev Note Requires a developer note for a major WordPress release cycle labels Feb 28, 2023
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bph commented Feb 28, 2023

@andrewserong Thank you so much for your notes and updating the tracking issue. I added the Dev Note to the draft Misc Editor post

VenusPR added a commit to VenusPR/Wordpress_Richard that referenced this pull request Mar 9, 2023
…t_typography_font_size_value().

In `wp_get_typography_font_size_value()`, adds support for using a minimum font size for fluid typography when defined in a theme's `theme.json` file.

Reference:
* Part of [WordPress/gutenberg#42489 Gutenberg PR 42489]

Follow-up to [54497], [54260].

Props andrewserong, ramonopoly, hellofromTonya, joen.
Fixes #57529.
Built from https://develop.svn.wordpress.org/trunk@55133


git-svn-id: http://core.svn.wordpress.org/trunk@54666 1a063a9b-81f0-0310-95a4-ce76da25c4cd
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4 participants