Merge the Responsive Images feature plugin into core, initial commit. See: https://github.com/ResponsiveImagesCG/wp-tevko-responsive-images/
New functions in `media.php`: * `wp_get_attachment_image_srcset_array()` - Returns an array of image candidate string data used to build a `srcset` value for an attachment given an `$attachement_id` and `$size`. * `wp_get_attachment_image_srcset()` - Returns the `srcset` value for an attachment given an `$attachement_id` and `$size`. * `wp_get_attachment_image_sizes()` - Returns the `sizes` value for an attachment given an `$attachement_id` and `$size` and optional arguments used to alter its output. * `wp_make_content_images_responsive()` - A display filter for adding `srcset` and `sizes` to images embedded in content. * `wp_img_add_srcset_and_sizes()` - A utility function used by `wp_make_content_images_responsive()` to add `srcset` and `sizes` to a single `<img>` element. Modifies existing core functions: * Modify `wp_get_attachment_image()` so the HTML returned for an image includes `srcset` and `sizes`. * Modify `get_media_embedded_in_content()` (sup, 3.6 leftover) by adding `<img>` to the list of accepted tags that can be matched in content. This is used in `wp_make_content_images_responsive()` to find all of the images embedded in content before passing them off to `wp_img_add_srcset_and_sizes()`. Tests: * Add a new factory method to `WP_UnitTest_Factory_For_Attachment` named `create_upload_object()` * Adds unit tests * Updates unit tests Props joemcgill, tevko, jaspermdegroot, mdmcginn, barryceelen, peterwilsoncc, fsylum, wonderboymusic, chriscoyier, benjaminpick, jrfnl, #12kingkool68, janhenckens, ryanmarkel, side777, ryelle, wturrell, micahmills, mattbagwell, coliff, DrewAPicture. See #33641. Built from https://develop.svn.wordpress.org/trunk@34855 git-svn-id: http://core.svn.wordpress.org/trunk@34820 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This commit is contained in:
Scott Taylor
parent
65133a89c1
commit
99be7beda0
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@ -129,12 +129,13 @@ add_filter( 'the_title', 'wptexturize' );
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add_filter( 'the_title', 'convert_chars' );
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add_filter( 'the_title', 'convert_chars' );
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add_filter( 'the_title', 'trim' );
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add_filter( 'the_title', 'trim' );
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add_filter( 'the_content', 'wptexturize' );
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add_filter( 'the_content', 'wptexturize' );
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add_filter( 'the_content', 'convert_smilies' );
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add_filter( 'the_content', 'convert_smilies' );
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add_filter( 'the_content', 'convert_chars' );
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add_filter( 'the_content', 'convert_chars' );
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add_filter( 'the_content', 'wpautop' );
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add_filter( 'the_content', 'wpautop' );
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add_filter( 'the_content', 'shortcode_unautop' );
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add_filter( 'the_content', 'shortcode_unautop' );
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add_filter( 'the_content', 'prepend_attachment' );
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add_filter( 'the_content', 'prepend_attachment' );
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add_filter( 'the_content', 'wp_make_content_images_responsive' );
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add_filter( 'the_excerpt', 'wptexturize' );
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add_filter( 'the_excerpt', 'wptexturize' );
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add_filter( 'the_excerpt', 'convert_smilies' );
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add_filter( 'the_excerpt', 'convert_smilies' );
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@ -777,6 +777,16 @@ function wp_get_attachment_image($attachment_id, $size = 'thumbnail', $icon = fa
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$attr = wp_parse_args($attr, $default_attr);
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$attr = wp_parse_args($attr, $default_attr);
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// Generate srcset and sizes if not already present.
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if ( empty( $attr['srcset'] ) && $srcset = wp_get_attachment_image_srcset( $attachment_id, $size ) ) {
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$attr['srcset'] = $srcset;
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$sizes_args = array(
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'height' => $height,
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'width' => $width,
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);
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$attr['sizes'] = wp_get_attachment_image_sizes( $attachment_id, $size, $sizes_args );
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}
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/**
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/**
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* Filter the list of attachment image attributes.
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* Filter the list of attachment image attributes.
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*
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*
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@ -814,6 +824,382 @@ function wp_get_attachment_image_url( $attachment_id, $size = 'thumbnail', $icon
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return isset( $image['0'] ) ? $image['0'] : false;
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return isset( $image['0'] ) ? $image['0'] : false;
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}
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}
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/**
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* Retrieves an array of URLs and pixel widths representing sizes of an image.
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*
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* The purpose is to populate a source set when creating responsive image markup.
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*
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* @since 4.4.0
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*
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* @param int $attachment_id Image attachment ID.
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* @param string $size Optional. Name of image size. Default 'medium'.
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* @return array|bool $images {
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* Array image candidate values containing a URL, descriptor type, and
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* descriptor value. False if none exist.
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*
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* @type array $values {
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* @type string $url An image URL.
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* @type string $descriptor A width or density descriptor used in a srcset.
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* @type int $value The descriptor value representing a width or
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* or pixel density.
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* }
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* }
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*
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*/
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function wp_get_attachment_image_srcset_array( $attachment_id, $size = 'medium' ) {
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// Get the intermediate size.
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$image = image_get_intermediate_size( $attachment_id, $size );
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// Get the post meta.
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$img_meta = wp_get_attachment_metadata( $attachment_id );
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if ( ! is_array( $img_meta ) ) {
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return false;
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}
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// Extract the height and width from the intermediate or the full size.
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$img_width = ( $image ) ? $image['width'] : $img_meta['width'];
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$img_height = ( $image ) ? $image['height'] : $img_meta['height'];
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// Bail early if the width isn't greater that zero.
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if ( ! $img_width > 0 ) {
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return false;
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}
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// Use the URL from the intermediate size or build the url from the metadata.
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if ( ! empty( $image['url'] ) ) {
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$img_url = $image['url'];
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} else {
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$uploads_dir = wp_upload_dir();
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$img_file = ( $image ) ? path_join( dirname( $img_meta['file'] ) , $image['file'] ) : $img_meta['file'];
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$img_url = $uploads_dir['baseurl'] . '/' . $img_file;
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}
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$img_sizes = $img_meta['sizes'];
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// Add full size to the img_sizes array.
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$img_sizes['full'] = array(
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'width' => $img_meta['width'],
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'height' => $img_meta['height'],
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'file' => wp_basename( $img_meta['file'] )
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);
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// Calculate the image aspect ratio.
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$img_ratio = $img_height / $img_width;
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/*
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* Images that have been edited in WordPress after being uploaded will
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* contain a unique hash. Look for that hash and use it later to filter
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* out images that are leftovers from previous versions.
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*/
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$img_edited = preg_match( '/-e[0-9]{13}/', $img_url, $img_edit_hash );
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/*
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* Set up arrays to hold url candidates and matched image sources so
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* we can avoid duplicates without looping through the full sources array
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*/
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$candidates = $sources = array();
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/*
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* Loop through available images and only use images that are resized
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* versions of the same rendition.
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*/
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foreach ( $img_sizes as $img ) {
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// Filter out images that are leftovers from previous renditions.
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if ( $img_edited && ! strpos( $img['file'], $img_edit_hash[0] ) ) {
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continue;
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}
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$candidate_url = path_join( dirname( $img_url ), $img['file'] );
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// Calculate the new image ratio.
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$img_ratio_compare = $img['height'] / $img['width'];
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// If the new ratio differs by less than 0.01, use it.
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if ( abs( $img_ratio - $img_ratio_compare ) < 0.01 && ! in_array( $candidate_url, $candidates ) ) {
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// Add the URL to our list of candidates.
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$candidates[] = $candidate_url;
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// Add the url, descriptor, and value to the sources array to be returned.
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$sources[] = array(
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'url' => $candidate_url,
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'descriptor' => 'w',
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'value' => $img['width'],
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);
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}
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}
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/**
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* Filter the output of wp_get_attachment_image_srcset_array().
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*
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* @since 4.4.0
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*
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* @param array $sources An array of image urls and widths.
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* @param int $attachment_id Attachment ID for image.
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* @param array|string $size Size of image, either array or string.
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*/
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return apply_filters( 'wp_get_attachment_image_srcset_array', $sources, $attachment_id, $size );
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}
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/**
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* Retrieves the value for an image attachment's 'srcset' attribute.
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*
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* @since 4.4.0
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*
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* @param int $attachment_id Image attachment ID.
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* @param string $size Optional. Name of image size. Default 'medium'.
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* @return string|bool A 'srcset' value string or false.
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*/
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function wp_get_attachment_image_srcset( $attachment_id, $size = 'medium' ) {
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$srcset_array = wp_get_attachment_image_srcset_array( $attachment_id, $size );
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// Only return a srcset value if there is more than one source.
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if ( count( $srcset_array ) <= 1 ) {
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return false;
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}
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$srcset = '';
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foreach ( $srcset_array as $source ) {
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$srcset .= $source['url'] . ' ' . $source['value'] . $source['descriptor'] . ', ';
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}
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/**
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* Filter the output of wp_get_attachment_image_srcset().
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*
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* @since 4.4.0
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*
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* @param string $srcset A source set formated for a `srcset` attribute.
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* @param int $attachment_id Attachment ID for image.
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* @param array|string $size Size of image, either array or string.
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*/
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return apply_filters( 'wp_get_attachment_image_srcset', rtrim( $srcset, ', ' ), $attachment_id, $size );
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}
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/**
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* Retrieves a source size attribute for an image from an array of values.
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*
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* @since 4.4.0
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*
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* @param int $attachment_id Image attachment ID.
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* @param string $size Optional. Name of image size. Default value: 'medium'.
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* @param array $args {
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* Optional. Arguments to retrieve attachments.
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*
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* @type array|string $sizes An array or string containing of size information.
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* @type int $width A single width value used in the default `sizes` string.
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* }
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* @return string|bool A valid source size value for use in a 'sizes' attribute or false.
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*/
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function wp_get_attachment_image_sizes( $attachment_id, $size = 'medium', $args = null ) {
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// Try to get the image width from $args before calling image_downsize().
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if ( is_array( $args ) && ! empty( $args['width'] ) ) {
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$img_width = (int) $args['width'];
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} elseif ( $img = image_get_intermediate_size( $attachment_id, $size ) ) {
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list( $img_width, $img_height ) = image_constrain_size_for_editor( $img['width'], $img['height'], $size );
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}
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// Bail early if $image_width isn't set.
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if ( ! $img_width ) {
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return false;
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}
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// Set the image width in pixels.
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$img_width = $img_width . 'px';
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// Set up our default values.
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$defaults = array(
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'sizes' => array(
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array(
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'size_value' => '100vw',
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'mq_value' => $img_width,
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'mq_name' => 'max-width'
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),
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array(
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'size_value' => $img_width
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),
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)
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);
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$args = wp_parse_args( $args, $defaults );
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/**
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* Filter arguments used to create 'sizes' attribute.
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*
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* @since 4.4.0
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*
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* @param array $args An array of arguments used to create a 'sizes' attribute.
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* @param int $attachment_id Post ID of the original image.
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* @param string $size Name of the image size being used.
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*/
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$args = apply_filters( 'wp_image_sizes_args', $args, $attachment_id, $size );
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// If sizes is passed as a string, just use the string.
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if ( is_string( $args['sizes'] ) ) {
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$size_list = $args['sizes'];
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// Otherwise, breakdown the array and build a sizes string.
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} elseif ( is_array( $args['sizes'] ) ) {
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$size_list = '';
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foreach ( $args['sizes'] as $size ) {
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// Use 100vw as the size value unless something else is specified.
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$size_value = ( $size['size_value'] ) ? $size['size_value'] : '100vw';
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// If a media length is specified, build the media query.
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if ( ! empty( $size['mq_value'] ) ) {
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$media_length = $size['mq_value'];
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// Use max-width as the media condition unless min-width is specified.
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$media_condition = ( ! empty( $size['mq_name'] ) ) ? $size['mq_name'] : 'max-width';
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// If a media_length was set, create the media query.
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$media_query = '(' . $media_condition . ": " . $media_length . ') ';
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} else {
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// If no media length was set, $media_query is blank.
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$media_query = '';
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}
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// Add to the source size list string.
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$size_list .= $media_query . $size_value . ', ';
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}
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// Remove the trailing comma and space from the end of the string.
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$size_list = substr( $size_list, 0, -2 );
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}
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// Return the sizes value as $size_list or false.
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return ( $size_list ) ? $size_list : false;
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}
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/**
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* Filters 'img' elements in post content to add 'srcset' and 'sizes' attributes.
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*
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* @since 4.4.0
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*
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* @see wp_img_add_srcset_and_sizes()
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*
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* @param string $content The raw post content to be filtered.
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* @return string Converted content with 'srcset' and 'sizes' attributes added to images.
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*/
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function wp_make_content_images_responsive( $content ) {
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$images = get_media_embedded_in_content( $content, 'img' );
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$attachment_ids = array();
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foreach( $images as $image ) {
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if ( preg_match( '/wp-image-([0-9]+)/i', $image, $class_id ) ) {
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$attachment_id = (int) $class_id[1];
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if ( $attachment_id ) {
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$attachment_ids[] = $attachment_id;
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}
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}
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}
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if ( 0 < count( $attachment_ids ) ) {
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/*
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* Warm object caches for use with wp_get_attachment_metadata.
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*
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* To avoid making a database call for each image, a single query
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* warms the object cache with the meta information for all images.
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*/
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_prime_post_caches( $attachment_ids, false, true );
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}
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foreach( $images as $image ) {
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$content = str_replace( $image, wp_img_add_srcset_and_sizes( $image ), $content );
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}
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return $content;
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}
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/**
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* Adds 'srcset' and 'sizes' attributes to an existing 'img' element.
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*
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* @since 4.4.0
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*
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* @see wp_get_attachment_image_srcset()
|
||||||
|
* @see wp_get_attachment_image_sizes()
|
||||||
|
*
|
||||||
|
* @param string $image An HTML 'img' element to be filtered.
|
||||||
|
* @return string Converted 'img' element with `srcset` and `sizes` attributes added.
|
||||||
|
*/
|
||||||
|
function wp_img_add_srcset_and_sizes( $image ) {
|
||||||
|
// Return early if a 'srcset' attribute already exists.
|
||||||
|
if ( false !== strpos( $image, ' srcset="' ) ) {
|
||||||
|
return $image;
|
||||||
|
}
|
||||||
|
|
||||||
|
// Parse id, size, width, and height from the `img` element.
|
||||||
|
$id = preg_match( '/wp-image-([0-9]+)/i', $image, $match_id ) ? (int) $match_id[1] : false;
|
||||||
|
$size = preg_match( '/size-([^\s|"]+)/i', $image, $match_size ) ? $match_size[1] : false;
|
||||||
|
$width = preg_match( '/ width="([0-9]+)"/', $image, $match_width ) ? (int) $match_width[1] : false;
|
||||||
|
$height = preg_match( '/ height="([0-9]+)"/', $image, $match_height ) ? (int) $match_height[1] : false;
|
||||||
|
|
||||||
|
if ( $id && false === $size ) {
|
||||||
|
$size = array( $width, $height );
|
||||||
|
}
|
||||||
|
|
||||||
|
/*
|
||||||
|
* If attempts to parse the size value failed, attempt to use the image
|
||||||
|
* metadata to match the 'src' against the available sizes for an attachment.
|
||||||
|
*/
|
||||||
|
if ( ! $size && ! empty( $id ) && is_array( $meta = wp_get_attachment_metadata( $id ) ) ) {
|
||||||
|
// Parse the image src value from the img element.
|
||||||
|
$src = preg_match( '/src="([^"]+)"/', $image, $match_src ) ? $match_src[1] : false;
|
||||||
|
|
||||||
|
// Return early if the src value is empty.
|
||||||
|
if ( ! $src ) {
|
||||||
|
return $image;
|
||||||
|
}
|
||||||
|
|
||||||
|
/*
|
||||||
|
* First, see if the file is the full size image. If not, loop through
|
||||||
|
* the intermediate sizes until we find a file that matches.
|
||||||
|
*/
|
||||||
|
$image_filename = wp_basename( $src );
|
||||||
|
|
||||||
|
if ( $image_filename === basename( $meta['file'] ) ) {
|
||||||
|
$size = 'full';
|
||||||
|
} else {
|
||||||
|
foreach( $meta['sizes'] as $image_size => $image_size_data ) {
|
||||||
|
if ( $image_filename === $image_size_data['file'] ) {
|
||||||
|
$size = $image_size;
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
}
|
||||||
|
|
||||||
|
// If ID and size, try for 'srcset' and 'sizes' and update the markup.
|
||||||
|
if ( $id && $size && $srcset = wp_get_attachment_image_srcset( $id, $size ) ) {
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Pass the 'height' and 'width' to 'wp_get_attachment_image_sizes()' to avoid
|
||||||
|
* recalculating the image size.
|
||||||
|
*/
|
||||||
|
$args = array(
|
||||||
|
'height' => $height,
|
||||||
|
'width' => $width,
|
||||||
|
);
|
||||||
|
|
||||||
|
$sizes = wp_get_attachment_image_sizes( $id, $size, $args );
|
||||||
|
|
||||||
|
// Format the srcset and sizes string and escape attributes.
|
||||||
|
$srcset_and_sizes = sprintf( ' srcset="%s" sizes="%s"', esc_attr( $srcset ), esc_attr( $sizes) );
|
||||||
|
|
||||||
|
// Add srcset and sizes attributes to the image markup.
|
||||||
|
$image = preg_replace( '/<img ([^>]+)[\s?][\/?]>/', '<img $1' . $srcset_and_sizes . ' />', $image );
|
||||||
|
}
|
||||||
|
|
||||||
|
return $image;
|
||||||
|
}
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* Adds a 'wp-post-image' class to post thumbnails. Internal use only.
|
* Adds a 'wp-post-image' class to post thumbnails. Internal use only.
|
||||||
*
|
*
|
||||||
|
|
@ -2986,11 +3372,12 @@ function get_media_embedded_in_content( $content, $types = null ) {
|
||||||
* Filter the embedded media types that are allowed to be returned from the content blob.
|
* Filter the embedded media types that are allowed to be returned from the content blob.
|
||||||
*
|
*
|
||||||
* @since 4.2.0
|
* @since 4.2.0
|
||||||
|
* @since 4.4.0 Added 'img' to the allowed types.
|
||||||
*
|
*
|
||||||
* @param array $allowed_media_types An array of allowed media types. Default media types are
|
* @param array $allowed_media_types An array of allowed media types. Default media types are
|
||||||
* 'audio', 'video', 'object', 'embed', and 'iframe'.
|
* 'audio', 'video', 'object', 'embed', 'iframe', and 'img'.
|
||||||
*/
|
*/
|
||||||
$allowed_media_types = apply_filters( 'media_embedded_in_content_allowed_types', array( 'audio', 'video', 'object', 'embed', 'iframe' ) );
|
$allowed_media_types = apply_filters( 'media_embedded_in_content_allowed_types', array( 'audio', 'video', 'object', 'embed', 'iframe', 'img' ) );
|
||||||
|
|
||||||
if ( ! empty( $types ) ) {
|
if ( ! empty( $types ) ) {
|
||||||
if ( ! is_array( $types ) ) {
|
if ( ! is_array( $types ) ) {
|
||||||
|
|
|
||||||
|
|
@ -4,7 +4,7 @@
|
||||||
*
|
*
|
||||||
* @global string $wp_version
|
* @global string $wp_version
|
||||||
*/
|
*/
|
||||||
$wp_version = '4.4-alpha-34854';
|
$wp_version = '4.4-alpha-34855';
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* 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.
|
||||||
|
|
|
||||||
Loading…
Reference in New Issue