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Media: Introduces image_editor_output_format filter for setting default MIME type of sub size image output.

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This change introduces the `image_editor_output_format` filter, which fires as sub size images are generated allowing to define a default image MIME type for those items.

Props adamsilverstein, williampatton, spacedmonkey, mikeschroder, hellofromTonya, justinahinon, Boniu91, antpb, SergeyBiryukov.
Fixes #52867.



git-svn-id: https://develop.svn.wordpress.org/trunk@50943 602fd350-edb4-49c9-b593-d223f7449a82
This commit is contained in:
Anthony Burchell 2021-05-20 22:14:47 +00:00
parent 1ea3c49436
commit 5a2c3706ee
2 changed files with 54 additions and 0 deletions
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31
src/wp-includes/class-wp-image-editor.php
View File

@ -316,6 +316,37 @@ abstract class WP_Image_Editor {
$new_ext = $file_ext;
}
/**
* Filters the image editor output format mapping.
*
* Enables filtering the mime type used to save images. By default,
* the mapping array is empty, so the mime type matches the source image.
*
* @see src/wp-includes/class-wp-image-editor.php -> get_output_format()
*
* @since 5.8.0
*
* @param array $wp_image_editor_output_format {
* An array of mime type mappings. Maps a source mime type to a new
* destination mime type. Empty by default.
*
* @type array $mime_type The source mime type {
* @type string $mime_type The new mime type.
* }
* @param string $filename Path to the image.
* @param string $mime_type The source image mime type.
* }
*/
$wp_image_editor_output_format = apply_filters( 'image_editor_output_format', array(), $filename, $mime_type );
if (
isset( $wp_image_editor_output_format[ $mime_type ] ) &&
$this->supports_mime_type( $wp_image_editor_output_format[ $mime_type ] )
) {
$mime_type = $wp_image_editor_output_format[ $mime_type ];
$new_ext = $this->get_extension( $mime_type );
}
// Double-check that the mime-type selected is supported by the editor.
// If not, choose a default instead.
if ( ! $this->supports_mime_type( $mime_type ) ) {

23
tests/phpunit/tests/image/intermediateSize.php
View File

@ -62,6 +62,29 @@ class Tests_Image_Intermediate_Size extends WP_UnitTestCase {
unlink( DIR_TESTDATA . '/images/a2-small-100x75.jpg' );
}
/**
* @requires function imagejpeg
* @ticket 52867
*/
function test_image_editor_output_format_filter() {
add_filter(
'image_editor_output_format',
function() {
return array( 'image/jpeg' => 'image/webp' );
}
);
$file = DIR_TESTDATA . '/images/waffles.jpg';
$image = image_make_intermediate_size( $file, 100, 75, true );
$editor = wp_get_image_editor( $file );
if ( is_wp_error( $editor ) || ! $editor->supports_mime_type( 'image/webp' ) ) {
$this->assertSame( 'image/jpeg', $image['mime-type'] );
} else {
$this->assertSame( 'image/webp', $image['mime-type'] );
}
unlink( DIR_TESTDATA . '/images/' . $image['file'] );
remove_all_filters( 'image_editor_output_format' );
}
/**
* @ticket 17626
* @requires function imagejpeg