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Media: Allow for customization of lazy-loading featured images.

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When lazy-loading images was introduced, in [52065] the check for `wp_lazy_loading_enabled()` was omitted by accident in the logic to set the attribute with its default value on `img` tags from `get_the_post_thumbnail()`. Without this check, it is impossible for third-party developers to modify the behavior for featured images.

This changeset fixes the problem by introducing the check.

Props flixos90, joemcgill, mukesh27.
Fixes #57490.


git-svn-id: https://develop.svn.wordpress.org/trunk@55093 602fd350-edb4-49c9-b593-d223f7449a82
This commit is contained in:
Felix Arntz
2023-01-19 07:32:28 +00:00
parent 84bb54d618
commit 65caf62944
2 changed files with 48 additions and 10 deletions
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35
tests/phpunit/tests/post/thumbnails.php
View File

@@ -408,6 +408,41 @@ class Tests_Post_Thumbnail_Template extends WP_UnitTestCase {
$this->assertSame( $expected, $result );
}
/**
* @ticket 57490
*/
public function test_get_the_post_thumbnail_includes_loading_lazy() {
set_post_thumbnail( self::$post, self::$attachment_id );
$html = get_the_post_thumbnail( self::$post );
$this->assertStringContainsString( ' loading="lazy"', $html );
}
/**
* @ticket 57490
*/
public function test_get_the_post_thumbnail_respects_passed_loading_attr() {
set_post_thumbnail( self::$post, self::$attachment_id );
$html = get_the_post_thumbnail( self::$post, 'post-thumbnail', array( 'loading' => 'eager' ) );
$this->assertStringContainsString( ' loading="eager"', $html, 'loading=eager was not present in img tag because attributes array with loading=eager was overwritten.' );
$html = get_the_post_thumbnail( self::$post, 'post-thumbnail', 'loading=eager' );
$this->assertStringContainsString( ' loading="eager"', $html, 'loading=eager was not present in img tag because attributes string with loading=eager was overwritten.' );
}
/**
* @ticket 57490
*/
public function test_get_the_post_thumbnail_respects_wp_lazy_loading_enabled_filter() {
set_post_thumbnail( self::$post, self::$attachment_id );
add_filter( 'wp_lazy_loading_enabled', '__return_false' );
$html = get_the_post_thumbnail( self::$post );
$this->assertStringNotContainsString( ' loading="lazy"', $html );
}
public function data_post_thumbnail_size_filter_complex() {
return array(
array( 0, 'medium' ),