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Media: Make PDF preview sizes filterable. 

This adds a new filter, `fallback_intermediate_image_sizes`, which
can be used to modify the array of image sizes created for previewing
PDFs in the media library and checks for the existence of sizes before
processing any image representations of a PDF.

Fixes #38594.
Built from https://develop.svn.wordpress.org/trunk@39246


git-svn-id: http://core.svn.wordpress.org/trunk@39186 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This commit is contained in:
Joe McGill 2016-11-15 13:26:30 +00:00
parent 65fb74561b
commit 36ac7287b0
2 changed files with 28 additions and 16 deletions
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42
wp-admin/includes/image.php
View File

@ -205,38 +205,50 @@ function wp_generate_attachment_metadata( $attachment_id, $file ) {
} }
// Try to create image thumbnails for PDFs // Try to create image thumbnails for PDFs
else if ( 'application/pdf' === $mime_type ) { else if ( 'application/pdf' === $mime_type ) {
$editor = wp_get_image_editor( $file );
$fallback_sizes = array( $fallback_sizes = array(
'thumbnail', 'thumbnail',
'medium', 'medium',
'large', 'large',
); );
/**
* Filters the image sizes generated for non-image mime types.
*
* @since 4.7.0
*
* @param array $fallback_sizes An array of image size names.
*/
$fallback_sizes = apply_filters( 'fallback_intermediate_image_sizes', $fallback_sizes, $metadata );
$sizes = array(); $sizes = array();
foreach ( $fallback_sizes as $s ) { foreach ( $fallback_sizes as $s ) {
$sizes[$s]['width'] = get_option( "{$s}_size_w" ); $sizes[ $s ]['width'] = get_option( "{$s}_size_w" );
$sizes[$s]['height'] = get_option( "{$s}_size_h" ); $sizes[ $s ]['height'] = get_option( "{$s}_size_h" );
// Force thumbnails to be soft crops. // Force thumbnails to be soft crops.
if ( ! 'thumbnail' === $s ) { if ( ! 'thumbnail' === $s ) {
$sizes[$s]['crop'] = get_option( "{$s}_crop" ); $sizes[ $s ]['crop'] = get_option( "{$s}_crop" );
} }
} }
if ( ! is_wp_error( $editor ) ) { // No support for this type of file // Only load PDFs in an image editor if we're processing sizes.
$uploaded = $editor->save( $file, 'image/jpeg' ); if ( ! empty( $sizes ) ) {
unset( $editor ); $editor = wp_get_image_editor( $file );
// Resize based on the full size image, rather than the source. if ( ! is_wp_error( $editor ) ) { // No support for this type of file
if ( ! is_wp_error( $uploaded ) ) { $uploaded = $editor->save( $file, 'image/jpeg' );
$editor = wp_get_image_editor( $uploaded['path'] ); unset( $editor );
unset( $uploaded['path'] );
if ( ! is_wp_error( $editor ) ) { // Resize based on the full size image, rather than the source.
$metadata['sizes'] = $editor->multi_resize( $sizes ); if ( ! is_wp_error( $uploaded ) ) {
$metadata['sizes']['full'] = $uploaded; $editor = wp_get_image_editor( $uploaded['path'] );
unset( $uploaded['path'] );
if ( ! is_wp_error( $editor ) ) {
$metadata['sizes'] = $editor->multi_resize( $sizes );
$metadata['sizes']['full'] = $uploaded;
}
} }
} }
} }

2
wp-includes/version.php
View File

@ -4,7 +4,7 @@
* *
* @global string $wp_version * @global string $wp_version
*/ */
$wp_version = '4.7-beta3-39245'; $wp_version = '4.7-beta3-39246';
/** /**
* Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema. * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.