Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

PostCSS style transformation: fail gracefully instead of throwing an error #56093

Merged
merged 2 commits into from
Nov 22, 2023

Conversation

zaguiini
Copy link
Member

@zaguiini zaguiini commented Nov 13, 2023

Closes #56082.

What?

#49521 introduces a regression in which invalid CSS throws an error. This PR fixes the problem by letting the transformation fail gracefully.

Why?

#49521 changed the internal CSS transformer to fix a couple of issues, but invalid CSS handling was not exhaustively tested.

How?

I'm wrapping the transformation function with a try-catch block and returning null in case it fails to parse the CSS.

Testing Instructions

Follow the instructions in #56082.

@zaguiini zaguiini added [Type] Bug An existing feature does not function as intended [Package] Block editor /packages/block-editor labels Nov 13, 2023
@zaguiini zaguiini self-assigned this Nov 13, 2023
@zaguiini
Copy link
Member Author

@strarsis I'd appreciate a review here.

Copy link

github-actions bot commented Nov 13, 2023

Size Change: +83 B (0%)

Total Size: 1.7 MB

Filename Size Change
build/block-editor/index.min.js 248 kB +83 B (0%)
ℹ️ View Unchanged
Filename Size
build/a11y/index.min.js 964 B
build/annotations/index.min.js 2.71 kB
build/api-fetch/index.min.js 2.29 kB
build/autop/index.min.js 2.11 kB
build/blob/index.min.js 590 B
build/block-directory/index.min.js 7.25 kB
build/block-directory/style-rtl.css 1.04 kB
build/block-directory/style.css 1.04 kB
build/block-editor/content-rtl.css 4.29 kB
build/block-editor/content.css 4.28 kB
build/block-editor/default-editor-styles-rtl.css 403 B
build/block-editor/default-editor-styles.css 403 B
build/block-editor/style-rtl.css 15.7 kB
build/block-editor/style.css 15.7 kB
build/block-library/blocks/archives/editor-rtl.css 61 B
build/block-library/blocks/archives/editor.css 60 B
build/block-library/blocks/archives/style-rtl.css 90 B
build/block-library/blocks/archives/style.css 90 B
build/block-library/blocks/audio/editor-rtl.css 150 B
build/block-library/blocks/audio/editor.css 150 B
build/block-library/blocks/audio/style-rtl.css 122 B
build/block-library/blocks/audio/style.css 122 B
build/block-library/blocks/audio/theme-rtl.css 138 B
build/block-library/blocks/audio/theme.css 138 B
build/block-library/blocks/avatar/editor-rtl.css 116 B
build/block-library/blocks/avatar/editor.css 116 B
build/block-library/blocks/avatar/style-rtl.css 104 B
build/block-library/blocks/avatar/style.css 104 B
build/block-library/blocks/block/editor-rtl.css 305 B
build/block-library/blocks/block/editor.css 305 B
build/block-library/blocks/button/editor-rtl.css 587 B
build/block-library/blocks/button/editor.css 587 B
build/block-library/blocks/button/style-rtl.css 633 B
build/block-library/blocks/button/style.css 632 B
build/block-library/blocks/buttons/editor-rtl.css 337 B
build/block-library/blocks/buttons/editor.css 337 B
build/block-library/blocks/buttons/style-rtl.css 332 B
build/block-library/blocks/buttons/style.css 332 B
build/block-library/blocks/calendar/style-rtl.css 239 B
build/block-library/blocks/calendar/style.css 239 B
build/block-library/blocks/categories/editor-rtl.css 113 B
build/block-library/blocks/categories/editor.css 112 B
build/block-library/blocks/categories/style-rtl.css 124 B
build/block-library/blocks/categories/style.css 124 B
build/block-library/blocks/code/editor-rtl.css 53 B
build/block-library/blocks/code/editor.css 53 B
build/block-library/blocks/code/style-rtl.css 121 B
build/block-library/blocks/code/style.css 121 B
build/block-library/blocks/code/theme-rtl.css 124 B
build/block-library/blocks/code/theme.css 124 B
build/block-library/blocks/columns/editor-rtl.css 108 B
build/block-library/blocks/columns/editor.css 108 B
build/block-library/blocks/columns/style-rtl.css 421 B
build/block-library/blocks/columns/style.css 421 B
build/block-library/blocks/comment-author-avatar/editor-rtl.css 125 B
build/block-library/blocks/comment-author-avatar/editor.css 125 B
build/block-library/blocks/comment-content/style-rtl.css 92 B
build/block-library/blocks/comment-content/style.css 92 B
build/block-library/blocks/comment-template/style-rtl.css 199 B
build/block-library/blocks/comment-template/style.css 198 B
build/block-library/blocks/comments-pagination-numbers/editor-rtl.css 123 B
build/block-library/blocks/comments-pagination-numbers/editor.css 121 B
build/block-library/blocks/comments-pagination/editor-rtl.css 222 B
build/block-library/blocks/comments-pagination/editor.css 209 B
build/block-library/blocks/comments-pagination/style-rtl.css 235 B
build/block-library/blocks/comments-pagination/style.css 231 B
build/block-library/blocks/comments-title/editor-rtl.css 75 B
build/block-library/blocks/comments-title/editor.css 75 B
build/block-library/blocks/comments/editor-rtl.css 840 B
build/block-library/blocks/comments/editor.css 839 B
build/block-library/blocks/comments/style-rtl.css 637 B
build/block-library/blocks/comments/style.css 636 B
build/block-library/blocks/cover/editor-rtl.css 647 B
build/block-library/blocks/cover/editor.css 650 B
build/block-library/blocks/cover/style-rtl.css 1.7 kB
build/block-library/blocks/cover/style.css 1.69 kB
build/block-library/blocks/details/editor-rtl.css 65 B
build/block-library/blocks/details/editor.css 65 B
build/block-library/blocks/details/style-rtl.css 98 B
build/block-library/blocks/details/style.css 98 B
build/block-library/blocks/embed/editor-rtl.css 293 B
build/block-library/blocks/embed/editor.css 293 B
build/block-library/blocks/embed/style-rtl.css 410 B
build/block-library/blocks/embed/style.css 410 B
build/block-library/blocks/embed/theme-rtl.css 138 B
build/block-library/blocks/embed/theme.css 138 B
build/block-library/blocks/file/editor-rtl.css 316 B
build/block-library/blocks/file/editor.css 316 B
build/block-library/blocks/file/style-rtl.css 280 B
build/block-library/blocks/file/style.css 281 B
build/block-library/blocks/file/view.min.js 320 B
build/block-library/blocks/footnotes/style-rtl.css 201 B
build/block-library/blocks/footnotes/style.css 199 B
build/block-library/blocks/form-input/editor-rtl.css 229 B
build/block-library/blocks/form-input/editor.css 228 B
build/block-library/blocks/form-input/style-rtl.css 343 B
build/block-library/blocks/form-input/style.css 343 B
build/block-library/blocks/form-submission-notification/editor-rtl.css 343 B
build/block-library/blocks/form-submission-notification/editor.css 342 B
build/block-library/blocks/form-submit-button/style-rtl.css 69 B
build/block-library/blocks/form-submit-button/style.css 69 B
build/block-library/blocks/form/view.min.js 452 B
build/block-library/blocks/freeform/editor-rtl.css 2.61 kB
build/block-library/blocks/freeform/editor.css 2.61 kB
build/block-library/blocks/gallery/editor-rtl.css 957 B
build/block-library/blocks/gallery/editor.css 962 B
build/block-library/blocks/gallery/style-rtl.css 1.55 kB
build/block-library/blocks/gallery/style.css 1.55 kB
build/block-library/blocks/gallery/theme-rtl.css 122 B
build/block-library/blocks/gallery/theme.css 122 B
build/block-library/blocks/group/editor-rtl.css 654 B
build/block-library/blocks/group/editor.css 654 B
build/block-library/blocks/group/style-rtl.css 57 B
build/block-library/blocks/group/style.css 57 B
build/block-library/blocks/group/theme-rtl.css 78 B
build/block-library/blocks/group/theme.css 78 B
build/block-library/blocks/heading/style-rtl.css 189 B
build/block-library/blocks/heading/style.css 189 B
build/block-library/blocks/html/editor-rtl.css 340 B
build/block-library/blocks/html/editor.css 341 B
build/block-library/blocks/image/editor-rtl.css 834 B
build/block-library/blocks/image/editor.css 833 B
build/block-library/blocks/image/style-rtl.css 1.61 kB
build/block-library/blocks/image/style.css 1.6 kB
build/block-library/blocks/image/theme-rtl.css 137 B
build/block-library/blocks/image/theme.css 137 B
build/block-library/blocks/image/view.min.js 2.05 kB
build/block-library/blocks/latest-comments/style-rtl.css 357 B
build/block-library/blocks/latest-comments/style.css 357 B
build/block-library/blocks/latest-posts/editor-rtl.css 213 B
build/block-library/blocks/latest-posts/editor.css 212 B
build/block-library/blocks/latest-posts/style-rtl.css 478 B
build/block-library/blocks/latest-posts/style.css 478 B
build/block-library/blocks/list/style-rtl.css 88 B
build/block-library/blocks/list/style.css 88 B
build/block-library/blocks/media-text/editor-rtl.css 266 B
build/block-library/blocks/media-text/editor.css 263 B
build/block-library/blocks/media-text/style-rtl.css 505 B
build/block-library/blocks/media-text/style.css 503 B
build/block-library/blocks/more/editor-rtl.css 431 B
build/block-library/blocks/more/editor.css 431 B
build/block-library/blocks/navigation-link/editor-rtl.css 671 B
build/block-library/blocks/navigation-link/editor.css 672 B
build/block-library/blocks/navigation-link/style-rtl.css 103 B
build/block-library/blocks/navigation-link/style.css 103 B
build/block-library/blocks/navigation-submenu/editor-rtl.css 299 B
build/block-library/blocks/navigation-submenu/editor.css 299 B
build/block-library/blocks/navigation/editor-rtl.css 2.26 kB
build/block-library/blocks/navigation/editor.css 2.26 kB
build/block-library/blocks/navigation/style-rtl.css 2.27 kB
build/block-library/blocks/navigation/style.css 2.26 kB
build/block-library/blocks/navigation/view.min.js 1.07 kB
build/block-library/blocks/nextpage/editor-rtl.css 395 B
build/block-library/blocks/nextpage/editor.css 395 B
build/block-library/blocks/page-list/editor-rtl.css 401 B
build/block-library/blocks/page-list/editor.css 401 B
build/block-library/blocks/page-list/style-rtl.css 175 B
build/block-library/blocks/page-list/style.css 175 B
build/block-library/blocks/paragraph/editor-rtl.css 235 B
build/block-library/blocks/paragraph/editor.css 235 B
build/block-library/blocks/paragraph/style-rtl.css 335 B
build/block-library/blocks/paragraph/style.css 335 B
build/block-library/blocks/post-author/style-rtl.css 175 B
build/block-library/blocks/post-author/style.css 176 B
build/block-library/blocks/post-comments-form/editor-rtl.css 96 B
build/block-library/blocks/post-comments-form/editor.css 96 B
build/block-library/blocks/post-comments-form/style-rtl.css 508 B
build/block-library/blocks/post-comments-form/style.css 508 B
build/block-library/blocks/post-date/style-rtl.css 61 B
build/block-library/blocks/post-date/style.css 61 B
build/block-library/blocks/post-excerpt/editor-rtl.css 71 B
build/block-library/blocks/post-excerpt/editor.css 71 B
build/block-library/blocks/post-excerpt/style-rtl.css 141 B
build/block-library/blocks/post-excerpt/style.css 141 B
build/block-library/blocks/post-featured-image/editor-rtl.css 666 B
build/block-library/blocks/post-featured-image/editor.css 662 B
build/block-library/blocks/post-featured-image/style-rtl.css 345 B
build/block-library/blocks/post-featured-image/style.css 345 B
build/block-library/blocks/post-navigation-link/style-rtl.css 215 B
build/block-library/blocks/post-navigation-link/style.css 214 B
build/block-library/blocks/post-template/editor-rtl.css 99 B
build/block-library/blocks/post-template/editor.css 98 B
build/block-library/blocks/post-template/style-rtl.css 409 B
build/block-library/blocks/post-template/style.css 408 B
build/block-library/blocks/post-terms/style-rtl.css 96 B
build/block-library/blocks/post-terms/style.css 96 B
build/block-library/blocks/post-time-to-read/style-rtl.css 69 B
build/block-library/blocks/post-time-to-read/style.css 69 B
build/block-library/blocks/post-title/style-rtl.css 100 B
build/block-library/blocks/post-title/style.css 100 B
build/block-library/blocks/preformatted/style-rtl.css 125 B
build/block-library/blocks/preformatted/style.css 125 B
build/block-library/blocks/pullquote/editor-rtl.css 135 B
build/block-library/blocks/pullquote/editor.css 135 B
build/block-library/blocks/pullquote/style-rtl.css 335 B
build/block-library/blocks/pullquote/style.css 335 B
build/block-library/blocks/pullquote/theme-rtl.css 168 B
build/block-library/blocks/pullquote/theme.css 168 B
build/block-library/blocks/query-pagination-numbers/editor-rtl.css 122 B
build/block-library/blocks/query-pagination-numbers/editor.css 121 B
build/block-library/blocks/query-pagination/editor-rtl.css 221 B
build/block-library/blocks/query-pagination/editor.css 211 B
build/block-library/blocks/query-pagination/style-rtl.css 288 B
build/block-library/blocks/query-pagination/style.css 284 B
build/block-library/blocks/query-title/style-rtl.css 63 B
build/block-library/blocks/query-title/style.css 63 B
build/block-library/blocks/query/editor-rtl.css 486 B
build/block-library/blocks/query/editor.css 486 B
build/block-library/blocks/query/style-rtl.css 312 B
build/block-library/blocks/query/style.css 308 B
build/block-library/blocks/query/view.min.js 637 B
build/block-library/blocks/quote/style-rtl.css 237 B
build/block-library/blocks/quote/style.css 237 B
build/block-library/blocks/quote/theme-rtl.css 223 B
build/block-library/blocks/quote/theme.css 226 B
build/block-library/blocks/read-more/style-rtl.css 140 B
build/block-library/blocks/read-more/style.css 140 B
build/block-library/blocks/rss/editor-rtl.css 149 B
build/block-library/blocks/rss/editor.css 149 B
build/block-library/blocks/rss/style-rtl.css 289 B
build/block-library/blocks/rss/style.css 288 B
build/block-library/blocks/search/editor-rtl.css 184 B
build/block-library/blocks/search/editor.css 184 B
build/block-library/blocks/search/style-rtl.css 613 B
build/block-library/blocks/search/style.css 613 B
build/block-library/blocks/search/theme-rtl.css 114 B
build/block-library/blocks/search/theme.css 114 B
build/block-library/blocks/search/view.min.js 471 B
build/block-library/blocks/separator/editor-rtl.css 146 B
build/block-library/blocks/separator/editor.css 146 B
build/block-library/blocks/separator/style-rtl.css 234 B
build/block-library/blocks/separator/style.css 234 B
build/block-library/blocks/separator/theme-rtl.css 194 B
build/block-library/blocks/separator/theme.css 194 B
build/block-library/blocks/shortcode/editor-rtl.css 329 B
build/block-library/blocks/shortcode/editor.css 329 B
build/block-library/blocks/site-logo/editor-rtl.css 760 B
build/block-library/blocks/site-logo/editor.css 760 B
build/block-library/blocks/site-logo/style-rtl.css 204 B
build/block-library/blocks/site-logo/style.css 204 B
build/block-library/blocks/site-tagline/editor-rtl.css 86 B
build/block-library/blocks/site-tagline/editor.css 86 B
build/block-library/blocks/site-title/editor-rtl.css 116 B
build/block-library/blocks/site-title/editor.css 116 B
build/block-library/blocks/site-title/style-rtl.css 57 B
build/block-library/blocks/site-title/style.css 57 B
build/block-library/blocks/social-link/editor-rtl.css 184 B
build/block-library/blocks/social-link/editor.css 184 B
build/block-library/blocks/social-links/editor-rtl.css 682 B
build/block-library/blocks/social-links/editor.css 681 B
build/block-library/blocks/social-links/style-rtl.css 1.45 kB
build/block-library/blocks/social-links/style.css 1.45 kB
build/block-library/blocks/spacer/editor-rtl.css 359 B
build/block-library/blocks/spacer/editor.css 359 B
build/block-library/blocks/spacer/style-rtl.css 48 B
build/block-library/blocks/spacer/style.css 48 B
build/block-library/blocks/table/editor-rtl.css 432 B
build/block-library/blocks/table/editor.css 432 B
build/block-library/blocks/table/style-rtl.css 646 B
build/block-library/blocks/table/style.css 645 B
build/block-library/blocks/table/theme-rtl.css 157 B
build/block-library/blocks/table/theme.css 157 B
build/block-library/blocks/tag-cloud/style-rtl.css 251 B
build/block-library/blocks/tag-cloud/style.css 253 B
build/block-library/blocks/template-part/editor-rtl.css 403 B
build/block-library/blocks/template-part/editor.css 403 B
build/block-library/blocks/template-part/theme-rtl.css 101 B
build/block-library/blocks/template-part/theme.css 101 B
build/block-library/blocks/term-description/style-rtl.css 111 B
build/block-library/blocks/term-description/style.css 111 B
build/block-library/blocks/text-columns/editor-rtl.css 95 B
build/block-library/blocks/text-columns/editor.css 95 B
build/block-library/blocks/text-columns/style-rtl.css 166 B
build/block-library/blocks/text-columns/style.css 166 B
build/block-library/blocks/verse/style-rtl.css 99 B
build/block-library/blocks/verse/style.css 99 B
build/block-library/blocks/video/editor-rtl.css 552 B
build/block-library/blocks/video/editor.css 555 B
build/block-library/blocks/video/style-rtl.css 191 B
build/block-library/blocks/video/style.css 191 B
build/block-library/blocks/video/theme-rtl.css 139 B
build/block-library/blocks/video/theme.css 139 B
build/block-library/classic-rtl.css 179 B
build/block-library/classic.css 179 B
build/block-library/common-rtl.css 1.11 kB
build/block-library/common.css 1.11 kB
build/block-library/editor-elements-rtl.css 75 B
build/block-library/editor-elements.css 75 B
build/block-library/editor-rtl.css 12.5 kB
build/block-library/editor.css 12.4 kB
build/block-library/elements-rtl.css 54 B
build/block-library/elements.css 54 B
build/block-library/index.min.js 212 kB
build/block-library/reset-rtl.css 472 B
build/block-library/reset.css 472 B
build/block-library/style-rtl.css 14.5 kB
build/block-library/style.css 14.5 kB
build/block-library/theme-rtl.css 700 B
build/block-library/theme.css 705 B
build/block-serialization-default-parser/index.min.js 1.13 kB
build/block-serialization-spec-parser/index.min.js 2.87 kB
build/blocks/index.min.js 51.5 kB
build/commands/index.min.js 15.5 kB
build/commands/style-rtl.css 947 B
build/commands/style.css 942 B
build/components/index.min.js 256 kB
build/components/style-rtl.css 12 kB
build/components/style.css 12 kB
build/compose/index.min.js 12.7 kB
build/core-commands/index.min.js 2.72 kB
build/core-data/index.min.js 72.5 kB
build/customize-widgets/index.min.js 12.1 kB
build/customize-widgets/style-rtl.css 1.43 kB
build/customize-widgets/style.css 1.43 kB
build/data-controls/index.min.js 651 B
build/data/index.min.js 8.87 kB
build/date/index.min.js 17.9 kB
build/deprecated/index.min.js 462 B
build/dom-ready/index.min.js 336 B
build/dom/index.min.js 4.68 kB
build/edit-post/classic-rtl.css 571 B
build/edit-post/classic.css 571 B
build/edit-post/index.min.js 35.7 kB
build/edit-post/style-rtl.css 7.58 kB
build/edit-post/style.css 7.57 kB
build/edit-site/index.min.js 208 kB
build/edit-site/style-rtl.css 14.3 kB
build/edit-site/style.css 14.3 kB
build/edit-widgets/index.min.js 17.2 kB
build/edit-widgets/style-rtl.css 4.65 kB
build/edit-widgets/style.css 4.65 kB
build/editor/index.min.js 46.9 kB
build/editor/style-rtl.css 3.72 kB
build/editor/style.css 3.71 kB
build/element/index.min.js 4.87 kB
build/escape-html/index.min.js 548 B
build/format-library/index.min.js 7.76 kB
build/format-library/style-rtl.css 577 B
build/format-library/style.css 577 B
build/hooks/index.min.js 1.57 kB
build/html-entities/index.min.js 454 B
build/i18n/index.min.js 3.61 kB
build/interactivity/index.min.js 11.4 kB
build/is-shallow-equal/index.min.js 535 B
build/keyboard-shortcuts/index.min.js 1.76 kB
build/keycodes/index.min.js 1.9 kB
build/list-reusable-blocks/index.min.js 2.11 kB
build/list-reusable-blocks/style-rtl.css 865 B
build/list-reusable-blocks/style.css 865 B
build/media-utils/index.min.js 2.92 kB
build/notices/index.min.js 964 B
build/nux/index.min.js 2.01 kB
build/nux/style-rtl.css 775 B
build/nux/style.css 771 B
build/patterns/index.min.js 4.82 kB
build/patterns/style-rtl.css 567 B
build/patterns/style.css 566 B
build/plugins/index.min.js 1.81 kB
build/preferences-persistence/index.min.js 1.85 kB
build/preferences/index.min.js 1.26 kB
build/primitives/index.min.js 994 B
build/priority-queue/index.min.js 1.52 kB
build/private-apis/index.min.js 988 B
build/react-i18n/index.min.js 631 B
build/react-refresh-entry/index.min.js 9.46 kB
build/react-refresh-runtime/index.min.js 6.78 kB
build/redux-routine/index.min.js 2.71 kB
build/reusable-blocks/index.min.js 2.75 kB
build/reusable-blocks/style-rtl.css 265 B
build/reusable-blocks/style.css 265 B
build/rich-text/index.min.js 9.96 kB
build/router/index.min.js 1.79 kB
build/server-side-render/index.min.js 1.96 kB
build/shortcode/index.min.js 1.4 kB
build/style-engine/index.min.js 1.98 kB
build/token-list/index.min.js 587 B
build/url/index.min.js 3.83 kB
build/vendors/inert-polyfill.min.js 2.48 kB
build/vendors/react-dom.min.js 41.8 kB
build/vendors/react.min.js 4.02 kB
build/viewport/index.min.js 967 B
build/warning/index.min.js 259 B
build/widgets/index.min.js 7.18 kB
build/widgets/style-rtl.css 1.18 kB
build/widgets/style.css 1.18 kB
build/wordcount/index.min.js 1.03 kB

compressed-size-action

@strarsis
Copy link
Contributor

strarsis commented Nov 14, 2023

@zaguiini: Great addition! 👍

].filter( Boolean )
).process( css, {} ).css; // use sync PostCSS API
} catch ( error ) {
if ( ! ( error instanceof CssSyntaxError ) ) {
Copy link
Contributor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

I'm not familiar enough with postCSS to know when an error is not a CssSyntaxError. In what scenario this condition will be true and the console warn be useful?

@@ -4,6 +4,28 @@
import transformStyles from '../transform-styles';

describe( 'transformStyles', () => {
it( 'should not throw error in case of invalid css', () => {
Copy link
Contributor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

This test is welcome but it actually doesn't not test what was broken in the UI of the custom CSS advanced panel. It just tests the return value is null when there is a CSS error. It doesn't make sure the UI works as expected.

@afercia
Copy link
Contributor

afercia commented Nov 15, 2023

Quickly tested and it does fix the issue.

I'd recommend to add an E2E test for the feature that was actually broken in packages/block-editor/src/components/global-styles/advanced-panel.js. The test should make sure that:

  • When there is a CSS error and the CSS textarea is blurred, the icon notice appears.
  • When the CSS error is fixed and the CSS textarea is blurred, the icon notice disappears.

@afercia
Copy link
Contributor

afercia commented Nov 15, 2023

On a related note: Previously, when there was an error in the CSS added to the textarea, the console warn gave some hint on the type of error:

Screenshot 2023-11-15 at 09 49 11

We could argue that wasn't that useful to average users. However, now there won't be anything in the console. I read there are nice ways to handle the error output, see https://postcss.org/docs/postcss-runner-guidelines#output
As a follow-up, I'd suggest to try to add some more meaningful error message in the UI, or at least in the console. I quickly tried with this:

Input:

body {background: red;}
body {background: aqua

Dupming this to the console:
console.log( error.message + '\n' + error.showSourceCode() );

That would provide some more useful information to users. It would also highlight which line(s) of the source CSS errored:

Screenshot 2023-11-15 at 10 28 25

@zaguiini
Copy link
Member Author

Quickly tested and it does fix the issue.

I'd recommend to add an E2E test for the feature that was actually broken in packages/block-editor/src/components/global-styles/advanced-panel.js.

Thanks. @afercia I do not have the bandwidth to add the E2E test, so the best I can do right now is to fix the unit test and merge this PR. Would you be able to add the E2E test as a follow-up PR?

@zaguiini zaguiini force-pushed the fix/transform-styles-custom-css-input-tooltip branch from ce181e0 to 6fb144f Compare November 22, 2023 11:32
@zaguiini
Copy link
Member Author

@afercia, we have that now:

image

I have updated the tests and rebased the branch with trunk. Please re-review the PR.

@afercia
Copy link
Contributor

afercia commented Nov 22, 2023

Would you be able to add the E2E test as a follow-up PR?

@zaguiini I'd really love to change the current red icon to a standard notice because the red icon isn't accessible at all. I will create a new issue and link to this PR as a reminder that an E2E test should be added as well.

I like the showSourceCode thing 🎉 I'd defer a full review to someone else though, as this isn't really my area of expertise (code looks good to me btw).

Copy link
Member

@jsnajdr jsnajdr left a comment

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Yes, this fixes the unexpected exceptions thrown by transformStyles. The calling code expects a null return value in case of error.

@zaguiini zaguiini merged commit c5ac490 into trunk Nov 22, 2023
51 checks passed
@zaguiini zaguiini deleted the fix/transform-styles-custom-css-input-tooltip branch November 22, 2023 13:08
@github-actions github-actions bot added this to the Gutenberg 17.2 milestone Nov 22, 2023
fullofcaffeine pushed a commit that referenced this pull request Nov 22, 2023
…error (#56093)

* PostCSS style transformation: fail gracefully instead of throwing error

* Display better warning messages
fullofcaffeine pushed a commit that referenced this pull request Nov 23, 2023
…error (#56093)

* PostCSS style transformation: fail gracefully instead of throwing error

* Display better warning messages
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Labels
[Package] Block editor /packages/block-editor [Type] Bug An existing feature does not function as intended
Projects
None yet
Development

Successfully merging this pull request may close these issues.

Missing validation message to custom CSS input
4 participants