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Gallery: Ensure last image takes up all available space #38189

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merged 1 commit into from
Jan 26, 2022

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stacimc
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@stacimc stacimc commented Jan 24, 2022

Fixes #38156

Description

In the Gallery block, if the last row contains a single image it should scale up to use all the available space. Some theme styles for the full and wide alignment options were limiting the max-width of Images and preventing this from working correctly for full/wide-aligned Galleries. This PR adds a max-width: 100% to override those styles.

How has this been tested?

Tested in Twenty Twenty-One, Twenty Twenty, Twenty Nineteen, Seedlet, and TT1-blocks.

For each theme:

  1. Create a gallery with three images. Set the 'Columns' setting to 2, so that the last image appears on a row by itself.
  2. Verify that the last image takes up all available space in the row.
  3. Change the alignment of the Gallery to "Full width" and then "Wide width" and verify the image scales appropriately.
  4. Check the post on the frontend and verify the image is scaled correctly for each width.

Make sure to test Twenty Nineteen, because it has highly specific rules that target the img and required higher specificity to override.

Screenshots

Before After
Screen Shot 2022-01-24 at 11 37 11 AM Screen Shot 2022-01-24 at 11 36 58 AM

Types of changes

Checklist:

  • My code is tested.
  • My code follows the WordPress code style.
  • My code follows the accessibility standards.
  • I've tested my changes with keyboard and screen readers.
  • My code has proper inline documentation.
  • I've included developer documentation if appropriate.
  • I've updated all React Native files affected by any refactorings/renamings in this PR (please manually search all *.native.js files for terms that need renaming or removal).
  • I've updated related schemas if appropriate.
@stacimc stacimc added the [Block] Gallery Affects the Gallery Block - used to display groups of images label Jan 24, 2022
@stacimc stacimc requested a review from mkevins as a code owner January 24, 2022 19:53
@stacimc stacimc self-assigned this Jan 24, 2022
max-width: 100%;
// Ensure max-width is not overridden on the img when the parent gallery has
// wide or full alignment.
max-width: 100% !important;
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This specifically was necessary for the frontend on Twenty Nineteen, to override:

@media only screen and (min-width: 768px)
.entry .entry-content .wp-block-image:not(.alignwide):not(.alignfull) > img {
    max-width: calc(8 * (100vw / 12) - 28px);

As the alignfull/alignwide class is present on the container but not included on the img children.

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Size Change: +18 B (0%)

Total Size: 1.14 MB

Filename Size Change
build/block-library/blocks/gallery/style-rtl.css 1.61 kB +11 B (+1%)
build/block-library/blocks/gallery/style.css 1.61 kB +12 B (+1%)
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ℹ️ View Unchanged
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This tested well for me on 2019, 2020, tt1, tt1-blocks, tt2 in editor and frontend.

@glendaviesnz glendaviesnz added the Backport to WP Minor Release Pull request that needs to be backported to a WordPress minor release label Jan 24, 2022
@stacimc stacimc merged commit 6a8fc97 into trunk Jan 26, 2022
@stacimc stacimc deleted the fix/last-image-width branch January 26, 2022 16:58
@github-actions github-actions bot added this to the Gutenberg 12.6 milestone Jan 26, 2022
@Mamaduka Mamaduka removed the Backport to WP Minor Release Pull request that needs to be backported to a WordPress minor release label Feb 16, 2022
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[Block] Gallery Affects the Gallery Block - used to display groups of images
3 participants