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I18N: Allow to short-circuit load_textdomain().

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Introduces a new `pre_load_textdomain` filter, which is useful for plugins to develop and test alternative loading/caching strategies for translations. This brings consistency with the existing `pre_load_script_translations` filter for JavaScript translations.

Props ocean90, swissspidy.
Fixes #58035.

git-svn-id: https://develop.svn.wordpress.org/trunk@55928 602fd350-edb4-49c9-b593-d223f7449a82
This commit is contained in:
Pascal Birchler 2023-06-16 12:56:03 +00:00
parent a1673dccae
commit 6048eb34be
2 changed files with 38 additions and 0 deletions
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22
src/wp-includes/l10n.php
View File

@ -717,6 +717,28 @@ function load_textdomain( $domain, $mofile, $locale = null ) {
$l10n_unloaded = (array) $l10n_unloaded;
/**
* Filters whether to short-circuit loading .mo file.
*
* Returning a non-null value from the filter will effectively short-circuit
* the loading, returning the passed value instead.
*
* @since 6.3.0
*
* @param bool|null $loaded The result of loading a .mo file. Default null.
* @param string $domain Text domain. Unique identifier for retrieving translated strings.
* @param string $mofile Path to the MO file.
* @param string|null $locale Locale.
*/
$loaded = apply_filters( 'pre_load_textdomain', null, $domain, $mofile, $locale );
if ( null !== $loaded ) {
if ( true === $loaded ) {
unset( $l10n_unloaded[ $domain ] );
}
return $loaded;
}
/**
* Filters whether to override the .mo file loading.
*

16
tests/phpunit/tests/l10n/loadTextdomain.php
View File

@ -300,4 +300,20 @@ class Tests_L10n_LoadTextdomain extends WP_UnitTestCase {
$this->assertSame( get_user_locale(), $this->locale );
}
/**
* @ticket 58035
*
* @covers ::load_theme_textdomain
*/
public function test_pre_load_textdomain_filter() {
$override_load_textdomain_callback = new MockAction();
add_filter( 'override_load_textdomain', array( $override_load_textdomain_callback, 'action' ) );
add_filter( 'pre_load_textdomain', '__return_true' );
load_plugin_textdomain( 'wp-tests-domain' );
remove_filter( 'pre_load_textdomain', '__return_true' );
$this->assertSame( 0, $override_load_textdomain_callback->get_call_count(), 'Expected override_load_textdomain not to be called.' );
}
}