6068 lines
205 KiB
PHP
6068 lines
205 KiB
PHP
<?php
|
|
/**
|
|
* WordPress API for media display.
|
|
*
|
|
* @package WordPress
|
|
* @subpackage Media
|
|
*/
|
|
|
|
/**
|
|
* Retrieves additional image sizes.
|
|
*
|
|
* @since 4.7.0
|
|
*
|
|
* @global array $_wp_additional_image_sizes
|
|
*
|
|
* @return array Additional images size data.
|
|
*/
|
|
function wp_get_additional_image_sizes() {
|
|
global $_wp_additional_image_sizes;
|
|
|
|
if ( ! $_wp_additional_image_sizes ) {
|
|
$_wp_additional_image_sizes = array();
|
|
}
|
|
|
|
return $_wp_additional_image_sizes;
|
|
}
|
|
|
|
/**
|
|
* Scales down the default size of an image.
|
|
*
|
|
* This is so that the image is a better fit for the editor and theme.
|
|
*
|
|
* The `$size` parameter accepts either an array or a string. The supported string
|
|
* values are 'thumb' or 'thumbnail' for the given thumbnail size or defaults at
|
|
* 128 width and 96 height in pixels. Also supported for the string value is
|
|
* 'medium', 'medium_large' and 'full'. The 'full' isn't actually supported, but any value other
|
|
* than the supported will result in the content_width size or 500 if that is
|
|
* not set.
|
|
*
|
|
* Finally, there is a filter named {@see 'editor_max_image_size'}, that will be
|
|
* called on the calculated array for width and height, respectively.
|
|
*
|
|
* @since 2.5.0
|
|
*
|
|
* @global int $content_width
|
|
*
|
|
* @param int $width Width of the image in pixels.
|
|
* @param int $height Height of the image in pixels.
|
|
* @param string|int[] $size Optional. Image size. Accepts any registered image size name, or an array
|
|
* of width and height values in pixels (in that order). Default 'medium'.
|
|
* @param string $context Optional. Could be 'display' (like in a theme) or 'edit'
|
|
* (like inserting into an editor). Default null.
|
|
* @return int[] {
|
|
* An array of width and height values.
|
|
*
|
|
* @type int $0 The maximum width in pixels.
|
|
* @type int $1 The maximum height in pixels.
|
|
* }
|
|
*/
|
|
function image_constrain_size_for_editor( $width, $height, $size = 'medium', $context = null ) {
|
|
global $content_width;
|
|
|
|
$_wp_additional_image_sizes = wp_get_additional_image_sizes();
|
|
|
|
if ( ! $context ) {
|
|
$context = is_admin() ? 'edit' : 'display';
|
|
}
|
|
|
|
if ( is_array( $size ) ) {
|
|
$max_width = $size[0];
|
|
$max_height = $size[1];
|
|
} elseif ( 'thumb' === $size || 'thumbnail' === $size ) {
|
|
$max_width = (int) get_option( 'thumbnail_size_w' );
|
|
$max_height = (int) get_option( 'thumbnail_size_h' );
|
|
// Last chance thumbnail size defaults.
|
|
if ( ! $max_width && ! $max_height ) {
|
|
$max_width = 128;
|
|
$max_height = 96;
|
|
}
|
|
} elseif ( 'medium' === $size ) {
|
|
$max_width = (int) get_option( 'medium_size_w' );
|
|
$max_height = (int) get_option( 'medium_size_h' );
|
|
|
|
} elseif ( 'medium_large' === $size ) {
|
|
$max_width = (int) get_option( 'medium_large_size_w' );
|
|
$max_height = (int) get_option( 'medium_large_size_h' );
|
|
|
|
if ( (int) $content_width > 0 ) {
|
|
$max_width = min( (int) $content_width, $max_width );
|
|
}
|
|
} elseif ( 'large' === $size ) {
|
|
/*
|
|
* We're inserting a large size image into the editor. If it's a really
|
|
* big image we'll scale it down to fit reasonably within the editor
|
|
* itself, and within the theme's content width if it's known. The user
|
|
* can resize it in the editor if they wish.
|
|
*/
|
|
$max_width = (int) get_option( 'large_size_w' );
|
|
$max_height = (int) get_option( 'large_size_h' );
|
|
|
|
if ( (int) $content_width > 0 ) {
|
|
$max_width = min( (int) $content_width, $max_width );
|
|
}
|
|
} elseif ( ! empty( $_wp_additional_image_sizes ) && in_array( $size, array_keys( $_wp_additional_image_sizes ), true ) ) {
|
|
$max_width = (int) $_wp_additional_image_sizes[ $size ]['width'];
|
|
$max_height = (int) $_wp_additional_image_sizes[ $size ]['height'];
|
|
// Only in admin. Assume that theme authors know what they're doing.
|
|
if ( (int) $content_width > 0 && 'edit' === $context ) {
|
|
$max_width = min( (int) $content_width, $max_width );
|
|
}
|
|
} else { // $size === 'full' has no constraint.
|
|
$max_width = $width;
|
|
$max_height = $height;
|
|
}
|
|
|
|
/**
|
|
* Filters the maximum image size dimensions for the editor.
|
|
*
|
|
* @since 2.5.0
|
|
*
|
|
* @param int[] $max_image_size {
|
|
* An array of width and height values.
|
|
*
|
|
* @type int $0 The maximum width in pixels.
|
|
* @type int $1 The maximum height in pixels.
|
|
* }
|
|
* @param string|int[] $size Requested image size. Can be any registered image size name, or
|
|
* an array of width and height values in pixels (in that order).
|
|
* @param string $context The context the image is being resized for.
|
|
* Possible values are 'display' (like in a theme)
|
|
* or 'edit' (like inserting into an editor).
|
|
*/
|
|
list( $max_width, $max_height ) = apply_filters( 'editor_max_image_size', array( $max_width, $max_height ), $size, $context );
|
|
|
|
return wp_constrain_dimensions( $width, $height, $max_width, $max_height );
|
|
}
|
|
|
|
/**
|
|
* Retrieves width and height attributes using given width and height values.
|
|
*
|
|
* Both attributes are required in the sense that both parameters must have a
|
|
* value, but are optional in that if you set them to false or null, then they
|
|
* will not be added to the returned string.
|
|
*
|
|
* You can set the value using a string, but it will only take numeric values.
|
|
* If you wish to put 'px' after the numbers, then it will be stripped out of
|
|
* the return.
|
|
*
|
|
* @since 2.5.0
|
|
*
|
|
* @param int|string $width Image width in pixels.
|
|
* @param int|string $height Image height in pixels.
|
|
* @return string HTML attributes for width and, or height.
|
|
*/
|
|
function image_hwstring( $width, $height ) {
|
|
$out = '';
|
|
if ( $width ) {
|
|
$out .= 'width="' . (int) $width . '" ';
|
|
}
|
|
if ( $height ) {
|
|
$out .= 'height="' . (int) $height . '" ';
|
|
}
|
|
return $out;
|
|
}
|
|
|
|
/**
|
|
* Scales an image to fit a particular size (such as 'thumb' or 'medium').
|
|
*
|
|
* The URL might be the original image, or it might be a resized version. This
|
|
* function won't create a new resized copy, it will just return an already
|
|
* resized one if it exists.
|
|
*
|
|
* A plugin may use the {@see 'image_downsize'} filter to hook into and offer image
|
|
* resizing services for images. The hook must return an array with the same
|
|
* elements that are normally returned from the function.
|
|
*
|
|
* @since 2.5.0
|
|
*
|
|
* @param int $id Attachment ID for image.
|
|
* @param string|int[] $size Optional. Image size. Accepts any registered image size name, or an array
|
|
* of width and height values in pixels (in that order). Default 'medium'.
|
|
* @return array|false {
|
|
* Array of image data, or boolean false if no image is available.
|
|
*
|
|
* @type string $0 Image source URL.
|
|
* @type int $1 Image width in pixels.
|
|
* @type int $2 Image height in pixels.
|
|
* @type bool $3 Whether the image is a resized image.
|
|
* }
|
|
*/
|
|
function image_downsize( $id, $size = 'medium' ) {
|
|
$is_image = wp_attachment_is_image( $id );
|
|
|
|
/**
|
|
* Filters whether to preempt the output of image_downsize().
|
|
*
|
|
* Returning a truthy value from the filter will effectively short-circuit
|
|
* down-sizing the image, returning that value instead.
|
|
*
|
|
* @since 2.5.0
|
|
*
|
|
* @param bool|array $downsize Whether to short-circuit the image downsize.
|
|
* @param int $id Attachment ID for image.
|
|
* @param string|int[] $size Requested image size. Can be any registered image size name, or
|
|
* an array of width and height values in pixels (in that order).
|
|
*/
|
|
$out = apply_filters( 'image_downsize', false, $id, $size );
|
|
|
|
if ( $out ) {
|
|
return $out;
|
|
}
|
|
|
|
$img_url = wp_get_attachment_url( $id );
|
|
$meta = wp_get_attachment_metadata( $id );
|
|
$width = 0;
|
|
$height = 0;
|
|
$is_intermediate = false;
|
|
$img_url_basename = wp_basename( $img_url );
|
|
|
|
/*
|
|
* If the file isn't an image, attempt to replace its URL with a rendered image from its meta.
|
|
* Otherwise, a non-image type could be returned.
|
|
*/
|
|
if ( ! $is_image ) {
|
|
if ( ! empty( $meta['sizes']['full'] ) ) {
|
|
$img_url = str_replace( $img_url_basename, $meta['sizes']['full']['file'], $img_url );
|
|
$img_url_basename = $meta['sizes']['full']['file'];
|
|
$width = $meta['sizes']['full']['width'];
|
|
$height = $meta['sizes']['full']['height'];
|
|
} else {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
// Try for a new style intermediate size.
|
|
$intermediate = image_get_intermediate_size( $id, $size );
|
|
|
|
if ( $intermediate ) {
|
|
$img_url = str_replace( $img_url_basename, $intermediate['file'], $img_url );
|
|
$width = $intermediate['width'];
|
|
$height = $intermediate['height'];
|
|
$is_intermediate = true;
|
|
} elseif ( 'thumbnail' === $size && ! empty( $meta['thumb'] ) && is_string( $meta['thumb'] ) ) {
|
|
// Fall back to the old thumbnail.
|
|
$imagefile = get_attached_file( $id );
|
|
$thumbfile = str_replace( wp_basename( $imagefile ), wp_basename( $meta['thumb'] ), $imagefile );
|
|
|
|
if ( file_exists( $thumbfile ) ) {
|
|
$info = wp_getimagesize( $thumbfile );
|
|
|
|
if ( $info ) {
|
|
$img_url = str_replace( $img_url_basename, wp_basename( $thumbfile ), $img_url );
|
|
$width = $info[0];
|
|
$height = $info[1];
|
|
$is_intermediate = true;
|
|
}
|
|
}
|
|
}
|
|
|
|
if ( ! $width && ! $height && isset( $meta['width'], $meta['height'] ) ) {
|
|
// Any other type: use the real image.
|
|
$width = $meta['width'];
|
|
$height = $meta['height'];
|
|
}
|
|
|
|
if ( $img_url ) {
|
|
// We have the actual image size, but might need to further constrain it if content_width is narrower.
|
|
list( $width, $height ) = image_constrain_size_for_editor( $width, $height, $size );
|
|
|
|
return array( $img_url, $width, $height, $is_intermediate );
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Registers a new image size.
|
|
*
|
|
* @since 2.9.0
|
|
*
|
|
* @global array $_wp_additional_image_sizes Associative array of additional image sizes.
|
|
*
|
|
* @param string $name Image size identifier.
|
|
* @param int $width Optional. Image width in pixels. Default 0.
|
|
* @param int $height Optional. Image height in pixels. Default 0.
|
|
* @param bool|array $crop {
|
|
* Optional. Image cropping behavior. If false, the image will be scaled (default).
|
|
* If true, image will be cropped to the specified dimensions using center positions.
|
|
* If an array, the image will be cropped using the array to specify the crop location:
|
|
*
|
|
* @type string $0 The x crop position. Accepts 'left' 'center', or 'right'.
|
|
* @type string $1 The y crop position. Accepts 'top', 'center', or 'bottom'.
|
|
* }
|
|
*/
|
|
function add_image_size( $name, $width = 0, $height = 0, $crop = false ) {
|
|
global $_wp_additional_image_sizes;
|
|
|
|
$_wp_additional_image_sizes[ $name ] = array(
|
|
'width' => absint( $width ),
|
|
'height' => absint( $height ),
|
|
'crop' => $crop,
|
|
);
|
|
}
|
|
|
|
/**
|
|
* Checks if an image size exists.
|
|
*
|
|
* @since 3.9.0
|
|
*
|
|
* @param string $name The image size to check.
|
|
* @return bool True if the image size exists, false if not.
|
|
*/
|
|
function has_image_size( $name ) {
|
|
$sizes = wp_get_additional_image_sizes();
|
|
return isset( $sizes[ $name ] );
|
|
}
|
|
|
|
/**
|
|
* Removes a new image size.
|
|
*
|
|
* @since 3.9.0
|
|
*
|
|
* @global array $_wp_additional_image_sizes
|
|
*
|
|
* @param string $name The image size to remove.
|
|
* @return bool True if the image size was successfully removed, false on failure.
|
|
*/
|
|
function remove_image_size( $name ) {
|
|
global $_wp_additional_image_sizes;
|
|
|
|
if ( isset( $_wp_additional_image_sizes[ $name ] ) ) {
|
|
unset( $_wp_additional_image_sizes[ $name ] );
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Registers an image size for the post thumbnail.
|
|
*
|
|
* @since 2.9.0
|
|
*
|
|
* @see add_image_size() for details on cropping behavior.
|
|
*
|
|
* @param int $width Image width in pixels.
|
|
* @param int $height Image height in pixels.
|
|
* @param bool|array $crop {
|
|
* Optional. Image cropping behavior. If false, the image will be scaled (default).
|
|
* If true, image will be cropped to the specified dimensions using center positions.
|
|
* If an array, the image will be cropped using the array to specify the crop location:
|
|
*
|
|
* @type string $0 The x crop position. Accepts 'left' 'center', or 'right'.
|
|
* @type string $1 The y crop position. Accepts 'top', 'center', or 'bottom'.
|
|
* }
|
|
*/
|
|
function set_post_thumbnail_size( $width = 0, $height = 0, $crop = false ) {
|
|
add_image_size( 'post-thumbnail', $width, $height, $crop );
|
|
}
|
|
|
|
/**
|
|
* Gets an img tag for an image attachment, scaling it down if requested.
|
|
*
|
|
* The {@see 'get_image_tag_class'} filter allows for changing the class name for the
|
|
* image without having to use regular expressions on the HTML content. The
|
|
* parameters are: what WordPress will use for the class, the Attachment ID,
|
|
* image align value, and the size the image should be.
|
|
*
|
|
* The second filter, {@see 'get_image_tag'}, has the HTML content, which can then be
|
|
* further manipulated by a plugin to change all attribute values and even HTML
|
|
* content.
|
|
*
|
|
* @since 2.5.0
|
|
*
|
|
* @param int $id Attachment ID.
|
|
* @param string $alt Image description for the alt attribute.
|
|
* @param string $title Image description for the title attribute.
|
|
* @param string $align Part of the class name for aligning the image.
|
|
* @param string|int[] $size Optional. Image size. Accepts any registered image size name, or an array of
|
|
* width and height values in pixels (in that order). Default 'medium'.
|
|
* @return string HTML IMG element for given image attachment.
|
|
*/
|
|
function get_image_tag( $id, $alt, $title, $align, $size = 'medium' ) {
|
|
|
|
list( $img_src, $width, $height ) = image_downsize( $id, $size );
|
|
$hwstring = image_hwstring( $width, $height );
|
|
|
|
$title = $title ? 'title="' . esc_attr( $title ) . '" ' : '';
|
|
|
|
$size_class = is_array( $size ) ? implode( 'x', $size ) : $size;
|
|
$class = 'align' . esc_attr( $align ) . ' size-' . esc_attr( $size_class ) . ' wp-image-' . $id;
|
|
|
|
/**
|
|
* Filters the value of the attachment's image tag class attribute.
|
|
*
|
|
* @since 2.6.0
|
|
*
|
|
* @param string $class CSS class name or space-separated list of classes.
|
|
* @param int $id Attachment ID.
|
|
* @param string $align Part of the class name for aligning the image.
|
|
* @param string|int[] $size Requested image size. Can be any registered image size name, or
|
|
* an array of width and height values in pixels (in that order).
|
|
*/
|
|
$class = apply_filters( 'get_image_tag_class', $class, $id, $align, $size );
|
|
|
|
$html = '<img src="' . esc_url( $img_src ) . '" alt="' . esc_attr( $alt ) . '" ' . $title . $hwstring . 'class="' . $class . '" />';
|
|
|
|
/**
|
|
* Filters the HTML content for the image tag.
|
|
*
|
|
* @since 2.6.0
|
|
*
|
|
* @param string $html HTML content for the image.
|
|
* @param int $id Attachment ID.
|
|
* @param string $alt Image description for the alt attribute.
|
|
* @param string $title Image description for the title attribute.
|
|
* @param string $align Part of the class name for aligning the image.
|
|
* @param string|int[] $size Requested image size. Can be any registered image size name, or
|
|
* an array of width and height values in pixels (in that order).
|
|
*/
|
|
return apply_filters( 'get_image_tag', $html, $id, $alt, $title, $align, $size );
|
|
}
|
|
|
|
/**
|
|
* Calculates the new dimensions for a down-sampled image.
|
|
*
|
|
* If either width or height are empty, no constraint is applied on
|
|
* that dimension.
|
|
*
|
|
* @since 2.5.0
|
|
*
|
|
* @param int $current_width Current width of the image.
|
|
* @param int $current_height Current height of the image.
|
|
* @param int $max_width Optional. Max width in pixels to constrain to. Default 0.
|
|
* @param int $max_height Optional. Max height in pixels to constrain to. Default 0.
|
|
* @return int[] {
|
|
* An array of width and height values.
|
|
*
|
|
* @type int $0 The width in pixels.
|
|
* @type int $1 The height in pixels.
|
|
* }
|
|
*/
|
|
function wp_constrain_dimensions( $current_width, $current_height, $max_width = 0, $max_height = 0 ) {
|
|
if ( ! $max_width && ! $max_height ) {
|
|
return array( $current_width, $current_height );
|
|
}
|
|
|
|
$width_ratio = 1.0;
|
|
$height_ratio = 1.0;
|
|
$did_width = false;
|
|
$did_height = false;
|
|
|
|
if ( $max_width > 0 && $current_width > 0 && $current_width > $max_width ) {
|
|
$width_ratio = $max_width / $current_width;
|
|
$did_width = true;
|
|
}
|
|
|
|
if ( $max_height > 0 && $current_height > 0 && $current_height > $max_height ) {
|
|
$height_ratio = $max_height / $current_height;
|
|
$did_height = true;
|
|
}
|
|
|
|
// Calculate the larger/smaller ratios.
|
|
$smaller_ratio = min( $width_ratio, $height_ratio );
|
|
$larger_ratio = max( $width_ratio, $height_ratio );
|
|
|
|
if ( (int) round( $current_width * $larger_ratio ) > $max_width || (int) round( $current_height * $larger_ratio ) > $max_height ) {
|
|
// The larger ratio is too big. It would result in an overflow.
|
|
$ratio = $smaller_ratio;
|
|
} else {
|
|
// The larger ratio fits, and is likely to be a more "snug" fit.
|
|
$ratio = $larger_ratio;
|
|
}
|
|
|
|
// Very small dimensions may result in 0, 1 should be the minimum.
|
|
$w = max( 1, (int) round( $current_width * $ratio ) );
|
|
$h = max( 1, (int) round( $current_height * $ratio ) );
|
|
|
|
/*
|
|
* Sometimes, due to rounding, we'll end up with a result like this:
|
|
* 465x700 in a 177x177 box is 117x176... a pixel short.
|
|
* We also have issues with recursive calls resulting in an ever-changing result.
|
|
* Constraining to the result of a constraint should yield the original result.
|
|
* Thus we look for dimensions that are one pixel shy of the max value and bump them up.
|
|
*/
|
|
|
|
// Note: $did_width means it is possible $smaller_ratio == $width_ratio.
|
|
if ( $did_width && $w === $max_width - 1 ) {
|
|
$w = $max_width; // Round it up.
|
|
}
|
|
|
|
// Note: $did_height means it is possible $smaller_ratio == $height_ratio.
|
|
if ( $did_height && $h === $max_height - 1 ) {
|
|
$h = $max_height; // Round it up.
|
|
}
|
|
|
|
/**
|
|
* Filters dimensions to constrain down-sampled images to.
|
|
*
|
|
* @since 4.1.0
|
|
*
|
|
* @param int[] $dimensions {
|
|
* An array of width and height values.
|
|
*
|
|
* @type int $0 The width in pixels.
|
|
* @type int $1 The height in pixels.
|
|
* }
|
|
* @param int $current_width The current width of the image.
|
|
* @param int $current_height The current height of the image.
|
|
* @param int $max_width The maximum width permitted.
|
|
* @param int $max_height The maximum height permitted.
|
|
*/
|
|
return apply_filters( 'wp_constrain_dimensions', array( $w, $h ), $current_width, $current_height, $max_width, $max_height );
|
|
}
|
|
|
|
/**
|
|
* Retrieves calculated resize dimensions for use in WP_Image_Editor.
|
|
*
|
|
* Calculates dimensions and coordinates for a resized image that fits
|
|
* within a specified width and height.
|
|
*
|
|
* @since 2.5.0
|
|
*
|
|
* @param int $orig_w Original width in pixels.
|
|
* @param int $orig_h Original height in pixels.
|
|
* @param int $dest_w New width in pixels.
|
|
* @param int $dest_h New height in pixels.
|
|
* @param bool|array $crop {
|
|
* Optional. Image cropping behavior. If false, the image will be scaled (default).
|
|
* If true, image will be cropped to the specified dimensions using center positions.
|
|
* If an array, the image will be cropped using the array to specify the crop location:
|
|
*
|
|
* @type string $0 The x crop position. Accepts 'left' 'center', or 'right'.
|
|
* @type string $1 The y crop position. Accepts 'top', 'center', or 'bottom'.
|
|
* }
|
|
* @return array|false Returned array matches parameters for `imagecopyresampled()`. False on failure.
|
|
*/
|
|
function image_resize_dimensions( $orig_w, $orig_h, $dest_w, $dest_h, $crop = false ) {
|
|
|
|
if ( $orig_w <= 0 || $orig_h <= 0 ) {
|
|
return false;
|
|
}
|
|
// At least one of $dest_w or $dest_h must be specific.
|
|
if ( $dest_w <= 0 && $dest_h <= 0 ) {
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Filters whether to preempt calculating the image resize dimensions.
|
|
*
|
|
* Returning a non-null value from the filter will effectively short-circuit
|
|
* image_resize_dimensions(), returning that value instead.
|
|
*
|
|
* @since 3.4.0
|
|
*
|
|
* @param null|mixed $null Whether to preempt output of the resize dimensions.
|
|
* @param int $orig_w Original width in pixels.
|
|
* @param int $orig_h Original height in pixels.
|
|
* @param int $dest_w New width in pixels.
|
|
* @param int $dest_h New height in pixels.
|
|
* @param bool|array $crop Whether to crop image to specified width and height or resize.
|
|
* An array can specify positioning of the crop area. Default false.
|
|
*/
|
|
$output = apply_filters( 'image_resize_dimensions', null, $orig_w, $orig_h, $dest_w, $dest_h, $crop );
|
|
|
|
if ( null !== $output ) {
|
|
return $output;
|
|
}
|
|
|
|
// Stop if the destination size is larger than the original image dimensions.
|
|
if ( empty( $dest_h ) ) {
|
|
if ( $orig_w < $dest_w ) {
|
|
return false;
|
|
}
|
|
} elseif ( empty( $dest_w ) ) {
|
|
if ( $orig_h < $dest_h ) {
|
|
return false;
|
|
}
|
|
} else {
|
|
if ( $orig_w < $dest_w && $orig_h < $dest_h ) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
if ( $crop ) {
|
|
/*
|
|
* Crop the largest possible portion of the original image that we can size to $dest_w x $dest_h.
|
|
* Note that the requested crop dimensions are used as a maximum bounding box for the original image.
|
|
* If the original image's width or height is less than the requested width or height
|
|
* only the greater one will be cropped.
|
|
* For example when the original image is 600x300, and the requested crop dimensions are 400x400,
|
|
* the resulting image will be 400x300.
|
|
*/
|
|
$aspect_ratio = $orig_w / $orig_h;
|
|
$new_w = min( $dest_w, $orig_w );
|
|
$new_h = min( $dest_h, $orig_h );
|
|
|
|
if ( ! $new_w ) {
|
|
$new_w = (int) round( $new_h * $aspect_ratio );
|
|
}
|
|
|
|
if ( ! $new_h ) {
|
|
$new_h = (int) round( $new_w / $aspect_ratio );
|
|
}
|
|
|
|
$size_ratio = max( $new_w / $orig_w, $new_h / $orig_h );
|
|
|
|
$crop_w = round( $new_w / $size_ratio );
|
|
$crop_h = round( $new_h / $size_ratio );
|
|
|
|
if ( ! is_array( $crop ) || count( $crop ) !== 2 ) {
|
|
$crop = array( 'center', 'center' );
|
|
}
|
|
|
|
list( $x, $y ) = $crop;
|
|
|
|
if ( 'left' === $x ) {
|
|
$s_x = 0;
|
|
} elseif ( 'right' === $x ) {
|
|
$s_x = $orig_w - $crop_w;
|
|
} else {
|
|
$s_x = floor( ( $orig_w - $crop_w ) / 2 );
|
|
}
|
|
|
|
if ( 'top' === $y ) {
|
|
$s_y = 0;
|
|
} elseif ( 'bottom' === $y ) {
|
|
$s_y = $orig_h - $crop_h;
|
|
} else {
|
|
$s_y = floor( ( $orig_h - $crop_h ) / 2 );
|
|
}
|
|
} else {
|
|
// Resize using $dest_w x $dest_h as a maximum bounding box.
|
|
$crop_w = $orig_w;
|
|
$crop_h = $orig_h;
|
|
|
|
$s_x = 0;
|
|
$s_y = 0;
|
|
|
|
list( $new_w, $new_h ) = wp_constrain_dimensions( $orig_w, $orig_h, $dest_w, $dest_h );
|
|
}
|
|
|
|
if ( wp_fuzzy_number_match( $new_w, $orig_w ) && wp_fuzzy_number_match( $new_h, $orig_h ) ) {
|
|
// The new size has virtually the same dimensions as the original image.
|
|
|
|
/**
|
|
* Filters whether to proceed with making an image sub-size with identical dimensions
|
|
* with the original/source image. Differences of 1px may be due to rounding and are ignored.
|
|
*
|
|
* @since 5.3.0
|
|
*
|
|
* @param bool $proceed The filtered value.
|
|
* @param int $orig_w Original image width.
|
|
* @param int $orig_h Original image height.
|
|
*/
|
|
$proceed = (bool) apply_filters( 'wp_image_resize_identical_dimensions', false, $orig_w, $orig_h );
|
|
|
|
if ( ! $proceed ) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* The return array matches the parameters to imagecopyresampled().
|
|
* int dst_x, int dst_y, int src_x, int src_y, int dst_w, int dst_h, int src_w, int src_h
|
|
*/
|
|
return array( 0, 0, (int) $s_x, (int) $s_y, (int) $new_w, (int) $new_h, (int) $crop_w, (int) $crop_h );
|
|
}
|
|
|
|
/**
|
|
* Resizes an image to make a thumbnail or intermediate size.
|
|
*
|
|
* The returned array has the file size, the image width, and image height. The
|
|
* {@see 'image_make_intermediate_size'} filter can be used to hook in and change the
|
|
* values of the returned array. The only parameter is the resized file path.
|
|
*
|
|
* @since 2.5.0
|
|
*
|
|
* @param string $file File path.
|
|
* @param int $width Image width.
|
|
* @param int $height Image height.
|
|
* @param bool|array $crop {
|
|
* Optional. Image cropping behavior. If false, the image will be scaled (default).
|
|
* If true, image will be cropped to the specified dimensions using center positions.
|
|
* If an array, the image will be cropped using the array to specify the crop location:
|
|
*
|
|
* @type string $0 The x crop position. Accepts 'left' 'center', or 'right'.
|
|
* @type string $1 The y crop position. Accepts 'top', 'center', or 'bottom'.
|
|
* }
|
|
* @return array|false Metadata array on success. False if no image was created.
|
|
*/
|
|
function image_make_intermediate_size( $file, $width, $height, $crop = false ) {
|
|
if ( $width || $height ) {
|
|
$editor = wp_get_image_editor( $file );
|
|
|
|
if ( is_wp_error( $editor ) || is_wp_error( $editor->resize( $width, $height, $crop ) ) ) {
|
|
return false;
|
|
}
|
|
|
|
$resized_file = $editor->save();
|
|
|
|
if ( ! is_wp_error( $resized_file ) && $resized_file ) {
|
|
unset( $resized_file['path'] );
|
|
return $resized_file;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Helper function to test if aspect ratios for two images match.
|
|
*
|
|
* @since 4.6.0
|
|
*
|
|
* @param int $source_width Width of the first image in pixels.
|
|
* @param int $source_height Height of the first image in pixels.
|
|
* @param int $target_width Width of the second image in pixels.
|
|
* @param int $target_height Height of the second image in pixels.
|
|
* @return bool True if aspect ratios match within 1px. False if not.
|
|
*/
|
|
function wp_image_matches_ratio( $source_width, $source_height, $target_width, $target_height ) {
|
|
/*
|
|
* To test for varying crops, we constrain the dimensions of the larger image
|
|
* to the dimensions of the smaller image and see if they match.
|
|
*/
|
|
if ( $source_width > $target_width ) {
|
|
$constrained_size = wp_constrain_dimensions( $source_width, $source_height, $target_width );
|
|
$expected_size = array( $target_width, $target_height );
|
|
} else {
|
|
$constrained_size = wp_constrain_dimensions( $target_width, $target_height, $source_width );
|
|
$expected_size = array( $source_width, $source_height );
|
|
}
|
|
|
|
// If the image dimensions are within 1px of the expected size, we consider it a match.
|
|
$matched = ( wp_fuzzy_number_match( $constrained_size[0], $expected_size[0] ) && wp_fuzzy_number_match( $constrained_size[1], $expected_size[1] ) );
|
|
|
|
return $matched;
|
|
}
|
|
|
|
/**
|
|
* Retrieves the image's intermediate size (resized) path, width, and height.
|
|
*
|
|
* The $size parameter can be an array with the width and height respectively.
|
|
* If the size matches the 'sizes' metadata array for width and height, then it
|
|
* will be used. If there is no direct match, then the nearest image size larger
|
|
* than the specified size will be used. If nothing is found, then the function
|
|
* will break out and return false.
|
|
*
|
|
* The metadata 'sizes' is used for compatible sizes that can be used for the
|
|
* parameter $size value.
|
|
*
|
|
* The url path will be given, when the $size parameter is a string.
|
|
*
|
|
* If you are passing an array for the $size, you should consider using
|
|
* add_image_size() so that a cropped version is generated. It's much more
|
|
* efficient than having to find the closest-sized image and then having the
|
|
* browser scale down the image.
|
|
*
|
|
* @since 2.5.0
|
|
*
|
|
* @param int $post_id Attachment ID.
|
|
* @param string|int[] $size Optional. Image size. Accepts any registered image size name, or an array
|
|
* of width and height values in pixels (in that order). Default 'thumbnail'.
|
|
* @return array|false {
|
|
* Array of file relative path, width, and height on success. Additionally includes absolute
|
|
* path and URL if registered size is passed to `$size` parameter. False on failure.
|
|
*
|
|
* @type string $file Filename of image.
|
|
* @type int $width Width of image in pixels.
|
|
* @type int $height Height of image in pixels.
|
|
* @type string $path Path of image relative to uploads directory.
|
|
* @type string $url URL of image.
|
|
* }
|
|
*/
|
|
function image_get_intermediate_size( $post_id, $size = 'thumbnail' ) {
|
|
$imagedata = wp_get_attachment_metadata( $post_id );
|
|
|
|
if ( ! $size || ! is_array( $imagedata ) || empty( $imagedata['sizes'] ) ) {
|
|
return false;
|
|
}
|
|
|
|
$data = array();
|
|
|
|
// Find the best match when '$size' is an array.
|
|
if ( is_array( $size ) ) {
|
|
$candidates = array();
|
|
|
|
if ( ! isset( $imagedata['file'] ) && isset( $imagedata['sizes']['full'] ) ) {
|
|
$imagedata['height'] = $imagedata['sizes']['full']['height'];
|
|
$imagedata['width'] = $imagedata['sizes']['full']['width'];
|
|
}
|
|
|
|
foreach ( $imagedata['sizes'] as $_size => $data ) {
|
|
// If there's an exact match to an existing image size, short circuit.
|
|
if ( (int) $data['width'] === (int) $size[0] && (int) $data['height'] === (int) $size[1] ) {
|
|
$candidates[ $data['width'] * $data['height'] ] = $data;
|
|
break;
|
|
}
|
|
|
|
// If it's not an exact match, consider larger sizes with the same aspect ratio.
|
|
if ( $data['width'] >= $size[0] && $data['height'] >= $size[1] ) {
|
|
// If '0' is passed to either size, we test ratios against the original file.
|
|
if ( 0 === $size[0] || 0 === $size[1] ) {
|
|
$same_ratio = wp_image_matches_ratio( $data['width'], $data['height'], $imagedata['width'], $imagedata['height'] );
|
|
} else {
|
|
$same_ratio = wp_image_matches_ratio( $data['width'], $data['height'], $size[0], $size[1] );
|
|
}
|
|
|
|
if ( $same_ratio ) {
|
|
$candidates[ $data['width'] * $data['height'] ] = $data;
|
|
}
|
|
}
|
|
}
|
|
|
|
if ( ! empty( $candidates ) ) {
|
|
// Sort the array by size if we have more than one candidate.
|
|
if ( 1 < count( $candidates ) ) {
|
|
ksort( $candidates );
|
|
}
|
|
|
|
$data = array_shift( $candidates );
|
|
/*
|
|
* When the size requested is smaller than the thumbnail dimensions, we
|
|
* fall back to the thumbnail size to maintain backward compatibility with
|
|
* pre 4.6 versions of WordPress.
|
|
*/
|
|
} elseif ( ! empty( $imagedata['sizes']['thumbnail'] ) && $imagedata['sizes']['thumbnail']['width'] >= $size[0] && $imagedata['sizes']['thumbnail']['width'] >= $size[1] ) {
|
|
$data = $imagedata['sizes']['thumbnail'];
|
|
} else {
|
|
return false;
|
|
}
|
|
|
|
// Constrain the width and height attributes to the requested values.
|
|
list( $data['width'], $data['height'] ) = image_constrain_size_for_editor( $data['width'], $data['height'], $size );
|
|
|
|
} elseif ( ! empty( $imagedata['sizes'][ $size ] ) ) {
|
|
$data = $imagedata['sizes'][ $size ];
|
|
}
|
|
|
|
// If we still don't have a match at this point, return false.
|
|
if ( empty( $data ) ) {
|
|
return false;
|
|
}
|
|
|
|
// Include the full filesystem path of the intermediate file.
|
|
if ( empty( $data['path'] ) && ! empty( $data['file'] ) && ! empty( $imagedata['file'] ) ) {
|
|
$file_url = wp_get_attachment_url( $post_id );
|
|
$data['path'] = path_join( dirname( $imagedata['file'] ), $data['file'] );
|
|
$data['url'] = path_join( dirname( $file_url ), $data['file'] );
|
|
}
|
|
|
|
/**
|
|
* Filters the output of image_get_intermediate_size()
|
|
*
|
|
* @since 4.4.0
|
|
*
|
|
* @see image_get_intermediate_size()
|
|
*
|
|
* @param array $data Array of file relative path, width, and height on success. May also include
|
|
* file absolute path and URL.
|
|
* @param int $post_id The ID of the image attachment.
|
|
* @param string|int[] $size Requested image size. Can be any registered image size name, or
|
|
* an array of width and height values in pixels (in that order).
|
|
*/
|
|
return apply_filters( 'image_get_intermediate_size', $data, $post_id, $size );
|
|
}
|
|
|
|
/**
|
|
* Gets the available intermediate image size names.
|
|
*
|
|
* @since 3.0.0
|
|
*
|
|
* @return string[] An array of image size names.
|
|
*/
|
|
function get_intermediate_image_sizes() {
|
|
$default_sizes = array( 'thumbnail', 'medium', 'medium_large', 'large' );
|
|
$additional_sizes = wp_get_additional_image_sizes();
|
|
|
|
if ( ! empty( $additional_sizes ) ) {
|
|
$default_sizes = array_merge( $default_sizes, array_keys( $additional_sizes ) );
|
|
}
|
|
|
|
/**
|
|
* Filters the list of intermediate image sizes.
|
|
*
|
|
* @since 2.5.0
|
|
*
|
|
* @param string[] $default_sizes An array of intermediate image size names. Defaults
|
|
* are 'thumbnail', 'medium', 'medium_large', 'large'.
|
|
*/
|
|
return apply_filters( 'intermediate_image_sizes', $default_sizes );
|
|
}
|
|
|
|
/**
|
|
* Returns a normalized list of all currently registered image sub-sizes.
|
|
*
|
|
* @since 5.3.0
|
|
* @uses wp_get_additional_image_sizes()
|
|
* @uses get_intermediate_image_sizes()
|
|
*
|
|
* @return array[] Associative array of arrays of image sub-size information,
|
|
* keyed by image size name.
|
|
*/
|
|
function wp_get_registered_image_subsizes() {
|
|
$additional_sizes = wp_get_additional_image_sizes();
|
|
$all_sizes = array();
|
|
|
|
foreach ( get_intermediate_image_sizes() as $size_name ) {
|
|
$size_data = array(
|
|
'width' => 0,
|
|
'height' => 0,
|
|
'crop' => false,
|
|
);
|
|
|
|
if ( isset( $additional_sizes[ $size_name ]['width'] ) ) {
|
|
// For sizes added by plugins and themes.
|
|
$size_data['width'] = (int) $additional_sizes[ $size_name ]['width'];
|
|
} else {
|
|
// For default sizes set in options.
|
|
$size_data['width'] = (int) get_option( "{$size_name}_size_w" );
|
|
}
|
|
|
|
if ( isset( $additional_sizes[ $size_name ]['height'] ) ) {
|
|
$size_data['height'] = (int) $additional_sizes[ $size_name ]['height'];
|
|
} else {
|
|
$size_data['height'] = (int) get_option( "{$size_name}_size_h" );
|
|
}
|
|
|
|
if ( empty( $size_data['width'] ) && empty( $size_data['height'] ) ) {
|
|
// This size isn't set.
|
|
continue;
|
|
}
|
|
|
|
if ( isset( $additional_sizes[ $size_name ]['crop'] ) ) {
|
|
$size_data['crop'] = $additional_sizes[ $size_name ]['crop'];
|
|
} else {
|
|
$size_data['crop'] = get_option( "{$size_name}_crop" );
|
|
}
|
|
|
|
if ( ! is_array( $size_data['crop'] ) || empty( $size_data['crop'] ) ) {
|
|
$size_data['crop'] = (bool) $size_data['crop'];
|
|
}
|
|
|
|
$all_sizes[ $size_name ] = $size_data;
|
|
}
|
|
|
|
return $all_sizes;
|
|
}
|
|
|
|
/**
|
|
* Retrieves an image to represent an attachment.
|
|
*
|
|
* @since 2.5.0
|
|
*
|
|
* @param int $attachment_id Image attachment ID.
|
|
* @param string|int[] $size Optional. Image size. Accepts any registered image size name, or an array of
|
|
* width and height values in pixels (in that order). Default 'thumbnail'.
|
|
* @param bool $icon Optional. Whether the image should fall back to a mime type icon. Default false.
|
|
* @return array|false {
|
|
* Array of image data, or boolean false if no image is available.
|
|
*
|
|
* @type string $0 Image source URL.
|
|
* @type int $1 Image width in pixels.
|
|
* @type int $2 Image height in pixels.
|
|
* @type bool $3 Whether the image is a resized image.
|
|
* }
|
|
*/
|
|
function wp_get_attachment_image_src( $attachment_id, $size = 'thumbnail', $icon = false ) {
|
|
// Get a thumbnail or intermediate image if there is one.
|
|
$image = image_downsize( $attachment_id, $size );
|
|
if ( ! $image ) {
|
|
$src = false;
|
|
|
|
if ( $icon ) {
|
|
$src = wp_mime_type_icon( $attachment_id, '.svg' );
|
|
|
|
if ( $src ) {
|
|
/** This filter is documented in wp-includes/post.php */
|
|
$icon_dir = apply_filters( 'icon_dir', ABSPATH . WPINC . '/images/media' );
|
|
|
|
$src_file = $icon_dir . '/' . wp_basename( $src );
|
|
|
|
list( $width, $height ) = wp_getimagesize( $src_file );
|
|
|
|
$ext = strtolower( substr( $src_file, -4 ) );
|
|
|
|
if ( '.svg' === $ext ) {
|
|
// SVG does not have true dimensions, so this assigns width and height directly.
|
|
$width = 48;
|
|
$height = 64;
|
|
} else {
|
|
list( $width, $height ) = wp_getimagesize( $src_file );
|
|
}
|
|
}
|
|
}
|
|
|
|
if ( $src && $width && $height ) {
|
|
$image = array( $src, $width, $height, false );
|
|
}
|
|
}
|
|
/**
|
|
* Filters the attachment image source result.
|
|
*
|
|
* @since 4.3.0
|
|
*
|
|
* @param array|false $image {
|
|
* Array of image data, or boolean false if no image is available.
|
|
*
|
|
* @type string $0 Image source URL.
|
|
* @type int $1 Image width in pixels.
|
|
* @type int $2 Image height in pixels.
|
|
* @type bool $3 Whether the image is a resized image.
|
|
* }
|
|
* @param int $attachment_id Image attachment ID.
|
|
* @param string|int[] $size Requested image size. Can be any registered image size name, or
|
|
* an array of width and height values in pixels (in that order).
|
|
* @param bool $icon Whether the image should be treated as an icon.
|
|
*/
|
|
return apply_filters( 'wp_get_attachment_image_src', $image, $attachment_id, $size, $icon );
|
|
}
|
|
|
|
/**
|
|
* Gets an HTML img element representing an image attachment.
|
|
*
|
|
* While `$size` will accept an array, it is better to register a size with
|
|
* add_image_size() so that a cropped version is generated. It's much more
|
|
* efficient than having to find the closest-sized image and then having the
|
|
* browser scale down the image.
|
|
*
|
|
* @since 2.5.0
|
|
* @since 4.4.0 The `$srcset` and `$sizes` attributes were added.
|
|
* @since 5.5.0 The `$loading` attribute was added.
|
|
* @since 6.1.0 The `$decoding` attribute was added.
|
|
*
|
|
* @param int $attachment_id Image attachment ID.
|
|
* @param string|int[] $size Optional. Image size. Accepts any registered image size name, or an array
|
|
* of width and height values in pixels (in that order). Default 'thumbnail'.
|
|
* @param bool $icon Optional. Whether the image should be treated as an icon. Default false.
|
|
* @param string|array $attr {
|
|
* Optional. Attributes for the image markup.
|
|
*
|
|
* @type string $src Image attachment URL.
|
|
* @type string $class CSS class name or space-separated list of classes.
|
|
* Default `attachment-$size_class size-$size_class`,
|
|
* where `$size_class` is the image size being requested.
|
|
* @type string $alt Image description for the alt attribute.
|
|
* @type string $srcset The 'srcset' attribute value.
|
|
* @type string $sizes The 'sizes' attribute value.
|
|
* @type string|false $loading The 'loading' attribute value. Passing a value of false
|
|
* will result in the attribute being omitted for the image.
|
|
* Defaults to 'lazy', depending on wp_lazy_loading_enabled().
|
|
* @type string $decoding The 'decoding' attribute value. Possible values are
|
|
* 'async' (default), 'sync', or 'auto'. Passing false or an empty
|
|
* string will result in the attribute being omitted.
|
|
* }
|
|
* @return string HTML img element or empty string on failure.
|
|
*/
|
|
function wp_get_attachment_image( $attachment_id, $size = 'thumbnail', $icon = false, $attr = '' ) {
|
|
$html = '';
|
|
$image = wp_get_attachment_image_src( $attachment_id, $size, $icon );
|
|
|
|
if ( $image ) {
|
|
list( $src, $width, $height ) = $image;
|
|
|
|
$attachment = get_post( $attachment_id );
|
|
$hwstring = image_hwstring( $width, $height );
|
|
$size_class = $size;
|
|
|
|
if ( is_array( $size_class ) ) {
|
|
$size_class = implode( 'x', $size_class );
|
|
}
|
|
|
|
$default_attr = array(
|
|
'src' => $src,
|
|
'class' => "attachment-$size_class size-$size_class",
|
|
'alt' => trim( strip_tags( get_post_meta( $attachment_id, '_wp_attachment_image_alt', true ) ) ),
|
|
);
|
|
|
|
/**
|
|
* Filters the context in which wp_get_attachment_image() is used.
|
|
*
|
|
* @since 6.3.0
|
|
*
|
|
* @param string $context The context. Default 'wp_get_attachment_image'.
|
|
*/
|
|
$context = apply_filters( 'wp_get_attachment_image_context', 'wp_get_attachment_image' );
|
|
$attr = wp_parse_args( $attr, $default_attr );
|
|
|
|
$loading_attr = $attr;
|
|
$loading_attr['width'] = $width;
|
|
$loading_attr['height'] = $height;
|
|
$loading_optimization_attr = wp_get_loading_optimization_attributes(
|
|
'img',
|
|
$loading_attr,
|
|
$context
|
|
);
|
|
|
|
// Add loading optimization attributes if not available.
|
|
$attr = array_merge( $attr, $loading_optimization_attr );
|
|
|
|
// Omit the `decoding` attribute if the value is invalid according to the spec.
|
|
if ( empty( $attr['decoding'] ) || ! in_array( $attr['decoding'], array( 'async', 'sync', 'auto' ), true ) ) {
|
|
unset( $attr['decoding'] );
|
|
}
|
|
|
|
/*
|
|
* If the default value of `lazy` for the `loading` attribute is overridden
|
|
* to omit the attribute for this image, ensure it is not included.
|
|
*/
|
|
if ( isset( $attr['loading'] ) && ! $attr['loading'] ) {
|
|
unset( $attr['loading'] );
|
|
}
|
|
|
|
// If the `fetchpriority` attribute is overridden and set to false or an empty string.
|
|
if ( isset( $attr['fetchpriority'] ) && ! $attr['fetchpriority'] ) {
|
|
unset( $attr['fetchpriority'] );
|
|
}
|
|
|
|
// Generate 'srcset' and 'sizes' if not already present.
|
|
if ( empty( $attr['srcset'] ) ) {
|
|
$image_meta = wp_get_attachment_metadata( $attachment_id );
|
|
|
|
if ( is_array( $image_meta ) ) {
|
|
$size_array = array( absint( $width ), absint( $height ) );
|
|
$srcset = wp_calculate_image_srcset( $size_array, $src, $image_meta, $attachment_id );
|
|
$sizes = wp_calculate_image_sizes( $size_array, $src, $image_meta, $attachment_id );
|
|
|
|
if ( $srcset && ( $sizes || ! empty( $attr['sizes'] ) ) ) {
|
|
$attr['srcset'] = $srcset;
|
|
|
|
if ( empty( $attr['sizes'] ) ) {
|
|
$attr['sizes'] = $sizes;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Filters the list of attachment image attributes.
|
|
*
|
|
* @since 2.8.0
|
|
*
|
|
* @param string[] $attr Array of attribute values for the image markup, keyed by attribute name.
|
|
* See wp_get_attachment_image().
|
|
* @param WP_Post $attachment Image attachment post.
|
|
* @param string|int[] $size Requested image size. Can be any registered image size name, or
|
|
* an array of width and height values in pixels (in that order).
|
|
*/
|
|
$attr = apply_filters( 'wp_get_attachment_image_attributes', $attr, $attachment, $size );
|
|
|
|
$attr = array_map( 'esc_attr', $attr );
|
|
$html = rtrim( "<img $hwstring" );
|
|
|
|
foreach ( $attr as $name => $value ) {
|
|
$html .= " $name=" . '"' . $value . '"';
|
|
}
|
|
|
|
$html .= ' />';
|
|
}
|
|
|
|
/**
|
|
* Filters the HTML img element representing an image attachment.
|
|
*
|
|
* @since 5.6.0
|
|
*
|
|
* @param string $html HTML img element or empty string on failure.
|
|
* @param int $attachment_id Image attachment ID.
|
|
* @param string|int[] $size Requested image size. Can be any registered image size name, or
|
|
* an array of width and height values in pixels (in that order).
|
|
* @param bool $icon Whether the image should be treated as an icon.
|
|
* @param string[] $attr Array of attribute values for the image markup, keyed by attribute name.
|
|
* See wp_get_attachment_image().
|
|
*/
|
|
return apply_filters( 'wp_get_attachment_image', $html, $attachment_id, $size, $icon, $attr );
|
|
}
|
|
|
|
/**
|
|
* Gets the URL of an image attachment.
|
|
*
|
|
* @since 4.4.0
|
|
*
|
|
* @param int $attachment_id Image attachment ID.
|
|
* @param string|int[] $size Optional. Image size. Accepts any registered image size name, or an array of
|
|
* width and height values in pixels (in that order). Default 'thumbnail'.
|
|
* @param bool $icon Optional. Whether the image should be treated as an icon. Default false.
|
|
* @return string|false Attachment URL or false if no image is available. If `$size` does not match
|
|
* any registered image size, the original image URL will be returned.
|
|
*/
|
|
function wp_get_attachment_image_url( $attachment_id, $size = 'thumbnail', $icon = false ) {
|
|
$image = wp_get_attachment_image_src( $attachment_id, $size, $icon );
|
|
return isset( $image[0] ) ? $image[0] : false;
|
|
}
|
|
|
|
/**
|
|
* Gets the attachment path relative to the upload directory.
|
|
*
|
|
* @since 4.4.1
|
|
* @access private
|
|
*
|
|
* @param string $file Attachment file name.
|
|
* @return string Attachment path relative to the upload directory.
|
|
*/
|
|
function _wp_get_attachment_relative_path( $file ) {
|
|
$dirname = dirname( $file );
|
|
|
|
if ( '.' === $dirname ) {
|
|
return '';
|
|
}
|
|
|
|
if ( str_contains( $dirname, 'wp-content/uploads' ) ) {
|
|
// Get the directory name relative to the upload directory (back compat for pre-2.7 uploads).
|
|
$dirname = substr( $dirname, strpos( $dirname, 'wp-content/uploads' ) + 18 );
|
|
$dirname = ltrim( $dirname, '/' );
|
|
}
|
|
|
|
return $dirname;
|
|
}
|
|
|
|
/**
|
|
* Gets the image size as array from its meta data.
|
|
*
|
|
* Used for responsive images.
|
|
*
|
|
* @since 4.4.0
|
|
* @access private
|
|
*
|
|
* @param string $size_name Image size. Accepts any registered image size name.
|
|
* @param array $image_meta The image meta data.
|
|
* @return array|false {
|
|
* Array of width and height or false if the size isn't present in the meta data.
|
|
*
|
|
* @type int $0 Image width.
|
|
* @type int $1 Image height.
|
|
* }
|
|
*/
|
|
function _wp_get_image_size_from_meta( $size_name, $image_meta ) {
|
|
if ( 'full' === $size_name ) {
|
|
return array(
|
|
absint( $image_meta['width'] ),
|
|
absint( $image_meta['height'] ),
|
|
);
|
|
} elseif ( ! empty( $image_meta['sizes'][ $size_name ] ) ) {
|
|
return array(
|
|
absint( $image_meta['sizes'][ $size_name ]['width'] ),
|
|
absint( $image_meta['sizes'][ $size_name ]['height'] ),
|
|
);
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Retrieves the value for an image attachment's 'srcset' attribute.
|
|
*
|
|
* @since 4.4.0
|
|
*
|
|
* @see wp_calculate_image_srcset()
|
|
*
|
|
* @param int $attachment_id Image attachment ID.
|
|
* @param string|int[] $size Optional. Image size. Accepts any registered image size name, or an array of
|
|
* width and height values in pixels (in that order). Default 'medium'.
|
|
* @param array|null $image_meta Optional. The image meta data as returned by 'wp_get_attachment_metadata()'.
|
|
* Default null.
|
|
* @return string|false A 'srcset' value string or false.
|
|
*/
|
|
function wp_get_attachment_image_srcset( $attachment_id, $size = 'medium', $image_meta = null ) {
|
|
$image = wp_get_attachment_image_src( $attachment_id, $size );
|
|
|
|
if ( ! $image ) {
|
|
return false;
|
|
}
|
|
|
|
if ( ! is_array( $image_meta ) ) {
|
|
$image_meta = wp_get_attachment_metadata( $attachment_id );
|
|
}
|
|
|
|
$image_src = $image[0];
|
|
$size_array = array(
|
|
absint( $image[1] ),
|
|
absint( $image[2] ),
|
|
);
|
|
|
|
return wp_calculate_image_srcset( $size_array, $image_src, $image_meta, $attachment_id );
|
|
}
|
|
|
|
/**
|
|
* A helper function to calculate the image sources to include in a 'srcset' attribute.
|
|
*
|
|
* @since 4.4.0
|
|
*
|
|
* @param int[] $size_array {
|
|
* An array of width and height values.
|
|
*
|
|
* @type int $0 The width in pixels.
|
|
* @type int $1 The height in pixels.
|
|
* }
|
|
* @param string $image_src The 'src' of the image.
|
|
* @param array $image_meta The image meta data as returned by 'wp_get_attachment_metadata()'.
|
|
* @param int $attachment_id Optional. The image attachment ID. Default 0.
|
|
* @return string|false The 'srcset' attribute value. False on error or when only one source exists.
|
|
*/
|
|
function wp_calculate_image_srcset( $size_array, $image_src, $image_meta, $attachment_id = 0 ) {
|
|
/**
|
|
* Pre-filters the image meta to be able to fix inconsistencies in the stored data.
|
|
*
|
|
* @since 4.5.0
|
|
*
|
|
* @param array $image_meta The image meta data as returned by 'wp_get_attachment_metadata()'.
|
|
* @param int[] $size_array {
|
|
* An array of requested width and height values.
|
|
*
|
|
* @type int $0 The width in pixels.
|
|
* @type int $1 The height in pixels.
|
|
* }
|
|
* @param string $image_src The 'src' of the image.
|
|
* @param int $attachment_id The image attachment ID or 0 if not supplied.
|
|
*/
|
|
$image_meta = apply_filters( 'wp_calculate_image_srcset_meta', $image_meta, $size_array, $image_src, $attachment_id );
|
|
|
|
if ( empty( $image_meta['sizes'] ) || ! isset( $image_meta['file'] ) || strlen( $image_meta['file'] ) < 4 ) {
|
|
return false;
|
|
}
|
|
|
|
$image_sizes = $image_meta['sizes'];
|
|
|
|
// Get the width and height of the image.
|
|
$image_width = (int) $size_array[0];
|
|
$image_height = (int) $size_array[1];
|
|
|
|
// Bail early if error/no width.
|
|
if ( $image_width < 1 ) {
|
|
return false;
|
|
}
|
|
|
|
$image_basename = wp_basename( $image_meta['file'] );
|
|
|
|
/*
|
|
* WordPress flattens animated GIFs into one frame when generating intermediate sizes.
|
|
* To avoid hiding animation in user content, if src is a full size GIF, a srcset attribute is not generated.
|
|
* If src is an intermediate size GIF, the full size is excluded from srcset to keep a flattened GIF from becoming animated.
|
|
*/
|
|
if ( ! isset( $image_sizes['thumbnail']['mime-type'] ) || 'image/gif' !== $image_sizes['thumbnail']['mime-type'] ) {
|
|
$image_sizes[] = array(
|
|
'width' => $image_meta['width'],
|
|
'height' => $image_meta['height'],
|
|
'file' => $image_basename,
|
|
);
|
|
} elseif ( str_contains( $image_src, $image_meta['file'] ) ) {
|
|
return false;
|
|
}
|
|
|
|
// Retrieve the uploads sub-directory from the full size image.
|
|
$dirname = _wp_get_attachment_relative_path( $image_meta['file'] );
|
|
|
|
if ( $dirname ) {
|
|
$dirname = trailingslashit( $dirname );
|
|
}
|
|
|
|
$upload_dir = wp_get_upload_dir();
|
|
$image_baseurl = trailingslashit( $upload_dir['baseurl'] ) . $dirname;
|
|
|
|
/*
|
|
* If currently on HTTPS, prefer HTTPS URLs when we know they're supported by the domain
|
|
* (which is to say, when they share the domain name of the current request).
|
|
*/
|
|
if ( is_ssl() && ! str_starts_with( $image_baseurl, 'https' ) && parse_url( $image_baseurl, PHP_URL_HOST ) === $_SERVER['HTTP_HOST'] ) {
|
|
$image_baseurl = set_url_scheme( $image_baseurl, 'https' );
|
|
}
|
|
|
|
/*
|
|
* Images that have been edited in WordPress after being uploaded will
|
|
* contain a unique hash. Look for that hash and use it later to filter
|
|
* out images that are leftovers from previous versions.
|
|
*/
|
|
$image_edited = preg_match( '/-e[0-9]{13}/', wp_basename( $image_src ), $image_edit_hash );
|
|
|
|
/**
|
|
* Filters the maximum image width to be included in a 'srcset' attribute.
|
|
*
|
|
* @since 4.4.0
|
|
*
|
|
* @param int $max_width The maximum image width to be included in the 'srcset'. Default '2048'.
|
|
* @param int[] $size_array {
|
|
* An array of requested width and height values.
|
|
*
|
|
* @type int $0 The width in pixels.
|
|
* @type int $1 The height in pixels.
|
|
* }
|
|
*/
|
|
$max_srcset_image_width = apply_filters( 'max_srcset_image_width', 2048, $size_array );
|
|
|
|
// Array to hold URL candidates.
|
|
$sources = array();
|
|
|
|
/**
|
|
* To make sure the ID matches our image src, we will check to see if any sizes in our attachment
|
|
* meta match our $image_src. If no matches are found we don't return a srcset to avoid serving
|
|
* an incorrect image. See #35045.
|
|
*/
|
|
$src_matched = false;
|
|
|
|
/*
|
|
* Loop through available images. Only use images that are resized
|
|
* versions of the same edit.
|
|
*/
|
|
foreach ( $image_sizes as $image ) {
|
|
$is_src = false;
|
|
|
|
// Check if image meta isn't corrupted.
|
|
if ( ! is_array( $image ) ) {
|
|
continue;
|
|
}
|
|
|
|
// If the file name is part of the `src`, we've confirmed a match.
|
|
if ( ! $src_matched && str_contains( $image_src, $dirname . $image['file'] ) ) {
|
|
$src_matched = true;
|
|
$is_src = true;
|
|
}
|
|
|
|
// Filter out images that are from previous edits.
|
|
if ( $image_edited && ! strpos( $image['file'], $image_edit_hash[0] ) ) {
|
|
continue;
|
|
}
|
|
|
|
/*
|
|
* Filters out images that are wider than '$max_srcset_image_width' unless
|
|
* that file is in the 'src' attribute.
|
|
*/
|
|
if ( $max_srcset_image_width && $image['width'] > $max_srcset_image_width && ! $is_src ) {
|
|
continue;
|
|
}
|
|
|
|
// If the image dimensions are within 1px of the expected size, use it.
|
|
if ( wp_image_matches_ratio( $image_width, $image_height, $image['width'], $image['height'] ) ) {
|
|
// Add the URL, descriptor, and value to the sources array to be returned.
|
|
$source = array(
|
|
'url' => $image_baseurl . $image['file'],
|
|
'descriptor' => 'w',
|
|
'value' => $image['width'],
|
|
);
|
|
|
|
// The 'src' image has to be the first in the 'srcset', because of a bug in iOS8. See #35030.
|
|
if ( $is_src ) {
|
|
$sources = array( $image['width'] => $source ) + $sources;
|
|
} else {
|
|
$sources[ $image['width'] ] = $source;
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Filters an image's 'srcset' sources.
|
|
*
|
|
* @since 4.4.0
|
|
*
|
|
* @param array $sources {
|
|
* One or more arrays of source data to include in the 'srcset'.
|
|
*
|
|
* @type array $width {
|
|
* @type string $url The URL of an image source.
|
|
* @type string $descriptor The descriptor type used in the image candidate string,
|
|
* either 'w' or 'x'.
|
|
* @type int $value The source width if paired with a 'w' descriptor, or a
|
|
* pixel density value if paired with an 'x' descriptor.
|
|
* }
|
|
* }
|
|
* @param array $size_array {
|
|
* An array of requested width and height values.
|
|
*
|
|
* @type int $0 The width in pixels.
|
|
* @type int $1 The height in pixels.
|
|
* }
|
|
* @param string $image_src The 'src' of the image.
|
|
* @param array $image_meta The image meta data as returned by 'wp_get_attachment_metadata()'.
|
|
* @param int $attachment_id Image attachment ID or 0.
|
|
*/
|
|
$sources = apply_filters( 'wp_calculate_image_srcset', $sources, $size_array, $image_src, $image_meta, $attachment_id );
|
|
|
|
// Only return a 'srcset' value if there is more than one source.
|
|
if ( ! $src_matched || ! is_array( $sources ) || count( $sources ) < 2 ) {
|
|
return false;
|
|
}
|
|
|
|
$srcset = '';
|
|
|
|
foreach ( $sources as $source ) {
|
|
$srcset .= str_replace( ' ', '%20', $source['url'] ) . ' ' . $source['value'] . $source['descriptor'] . ', ';
|
|
}
|
|
|
|
return rtrim( $srcset, ', ' );
|
|
}
|
|
|
|
/**
|
|
* Retrieves the value for an image attachment's 'sizes' attribute.
|
|
*
|
|
* @since 4.4.0
|
|
*
|
|
* @see wp_calculate_image_sizes()
|
|
*
|
|
* @param int $attachment_id Image attachment ID.
|
|
* @param string|int[] $size Optional. Image size. Accepts any registered image size name, or an array of
|
|
* width and height values in pixels (in that order). Default 'medium'.
|
|
* @param array|null $image_meta Optional. The image meta data as returned by 'wp_get_attachment_metadata()'.
|
|
* Default null.
|
|
* @return string|false A valid source size value for use in a 'sizes' attribute or false.
|
|
*/
|
|
function wp_get_attachment_image_sizes( $attachment_id, $size = 'medium', $image_meta = null ) {
|
|
$image = wp_get_attachment_image_src( $attachment_id, $size );
|
|
|
|
if ( ! $image ) {
|
|
return false;
|
|
}
|
|
|
|
if ( ! is_array( $image_meta ) ) {
|
|
$image_meta = wp_get_attachment_metadata( $attachment_id );
|
|
}
|
|
|
|
$image_src = $image[0];
|
|
$size_array = array(
|
|
absint( $image[1] ),
|
|
absint( $image[2] ),
|
|
);
|
|
|
|
return wp_calculate_image_sizes( $size_array, $image_src, $image_meta, $attachment_id );
|
|
}
|
|
|
|
/**
|
|
* Creates a 'sizes' attribute value for an image.
|
|
*
|
|
* @since 4.4.0
|
|
*
|
|
* @param string|int[] $size Image size. Accepts any registered image size name, or an array of
|
|
* width and height values in pixels (in that order).
|
|
* @param string|null $image_src Optional. The URL to the image file. Default null.
|
|
* @param array|null $image_meta Optional. The image meta data as returned by 'wp_get_attachment_metadata()'.
|
|
* Default null.
|
|
* @param int $attachment_id Optional. Image attachment ID. Either `$image_meta` or `$attachment_id`
|
|
* is needed when using the image size name as argument for `$size`. Default 0.
|
|
* @return string|false A valid source size value for use in a 'sizes' attribute or false.
|
|
*/
|
|
function wp_calculate_image_sizes( $size, $image_src = null, $image_meta = null, $attachment_id = 0 ) {
|
|
$width = 0;
|
|
|
|
if ( is_array( $size ) ) {
|
|
$width = absint( $size[0] );
|
|
} elseif ( is_string( $size ) ) {
|
|
if ( ! $image_meta && $attachment_id ) {
|
|
$image_meta = wp_get_attachment_metadata( $attachment_id );
|
|
}
|
|
|
|
if ( is_array( $image_meta ) ) {
|
|
$size_array = _wp_get_image_size_from_meta( $size, $image_meta );
|
|
if ( $size_array ) {
|
|
$width = absint( $size_array[0] );
|
|
}
|
|
}
|
|
}
|
|
|
|
if ( ! $width ) {
|
|
return false;
|
|
}
|
|
|
|
// Setup the default 'sizes' attribute.
|
|
$sizes = sprintf( '(max-width: %1$dpx) 100vw, %1$dpx', $width );
|
|
|
|
/**
|
|
* Filters the output of 'wp_calculate_image_sizes()'.
|
|
*
|
|
* @since 4.4.0
|
|
*
|
|
* @param string $sizes A source size value for use in a 'sizes' attribute.
|
|
* @param string|int[] $size Requested image size. Can be any registered image size name, or
|
|
* an array of width and height values in pixels (in that order).
|
|
* @param string|null $image_src The URL to the image file or null.
|
|
* @param array|null $image_meta The image meta data as returned by wp_get_attachment_metadata() or null.
|
|
* @param int $attachment_id Image attachment ID of the original image or 0.
|
|
*/
|
|
return apply_filters( 'wp_calculate_image_sizes', $sizes, $size, $image_src, $image_meta, $attachment_id );
|
|
}
|
|
|
|
/**
|
|
* Determines if the image meta data is for the image source file.
|
|
*
|
|
* The image meta data is retrieved by attachment post ID. In some cases the post IDs may change.
|
|
* For example when the website is exported and imported at another website. Then the
|
|
* attachment post IDs that are in post_content for the exported website may not match
|
|
* the same attachments at the new website.
|
|
*
|
|
* @since 5.5.0
|
|
*
|
|
* @param string $image_location The full path or URI to the image file.
|
|
* @param array $image_meta The attachment meta data as returned by 'wp_get_attachment_metadata()'.
|
|
* @param int $attachment_id Optional. The image attachment ID. Default 0.
|
|
* @return bool Whether the image meta is for this image file.
|
|
*/
|
|
function wp_image_file_matches_image_meta( $image_location, $image_meta, $attachment_id = 0 ) {
|
|
$match = false;
|
|
|
|
// Ensure the $image_meta is valid.
|
|
if ( isset( $image_meta['file'] ) && strlen( $image_meta['file'] ) > 4 ) {
|
|
// Remove query args in image URI.
|
|
list( $image_location ) = explode( '?', $image_location );
|
|
|
|
// Check if the relative image path from the image meta is at the end of $image_location.
|
|
if ( strrpos( $image_location, $image_meta['file'] ) === strlen( $image_location ) - strlen( $image_meta['file'] ) ) {
|
|
$match = true;
|
|
} else {
|
|
// Retrieve the uploads sub-directory from the full size image.
|
|
$dirname = _wp_get_attachment_relative_path( $image_meta['file'] );
|
|
|
|
if ( $dirname ) {
|
|
$dirname = trailingslashit( $dirname );
|
|
}
|
|
|
|
if ( ! empty( $image_meta['original_image'] ) ) {
|
|
$relative_path = $dirname . $image_meta['original_image'];
|
|
|
|
if ( strrpos( $image_location, $relative_path ) === strlen( $image_location ) - strlen( $relative_path ) ) {
|
|
$match = true;
|
|
}
|
|
}
|
|
|
|
if ( ! $match && ! empty( $image_meta['sizes'] ) ) {
|
|
foreach ( $image_meta['sizes'] as $image_size_data ) {
|
|
$relative_path = $dirname . $image_size_data['file'];
|
|
|
|
if ( strrpos( $image_location, $relative_path ) === strlen( $image_location ) - strlen( $relative_path ) ) {
|
|
$match = true;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Filters whether an image path or URI matches image meta.
|
|
*
|
|
* @since 5.5.0
|
|
*
|
|
* @param bool $match Whether the image relative path from the image meta
|
|
* matches the end of the URI or path to the image file.
|
|
* @param string $image_location Full path or URI to the tested image file.
|
|
* @param array $image_meta The image meta data as returned by 'wp_get_attachment_metadata()'.
|
|
* @param int $attachment_id The image attachment ID or 0 if not supplied.
|
|
*/
|
|
return apply_filters( 'wp_image_file_matches_image_meta', $match, $image_location, $image_meta, $attachment_id );
|
|
}
|
|
|
|
/**
|
|
* Determines an image's width and height dimensions based on the source file.
|
|
*
|
|
* @since 5.5.0
|
|
*
|
|
* @param string $image_src The image source file.
|
|
* @param array $image_meta The image meta data as returned by 'wp_get_attachment_metadata()'.
|
|
* @param int $attachment_id Optional. The image attachment ID. Default 0.
|
|
* @return array|false Array with first element being the width and second element being the height,
|
|
* or false if dimensions cannot be determined.
|
|
*/
|
|
function wp_image_src_get_dimensions( $image_src, $image_meta, $attachment_id = 0 ) {
|
|
$dimensions = false;
|
|
|
|
// Is it a full size image?
|
|
if (
|
|
isset( $image_meta['file'] ) &&
|
|
str_contains( $image_src, wp_basename( $image_meta['file'] ) )
|
|
) {
|
|
$dimensions = array(
|
|
(int) $image_meta['width'],
|
|
(int) $image_meta['height'],
|
|
);
|
|
}
|
|
|
|
if ( ! $dimensions && ! empty( $image_meta['sizes'] ) ) {
|
|
$src_filename = wp_basename( $image_src );
|
|
|
|
foreach ( $image_meta['sizes'] as $image_size_data ) {
|
|
if ( $src_filename === $image_size_data['file'] ) {
|
|
$dimensions = array(
|
|
(int) $image_size_data['width'],
|
|
(int) $image_size_data['height'],
|
|
);
|
|
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Filters the 'wp_image_src_get_dimensions' value.
|
|
*
|
|
* @since 5.7.0
|
|
*
|
|
* @param array|false $dimensions Array with first element being the width
|
|
* and second element being the height, or
|
|
* false if dimensions could not be determined.
|
|
* @param string $image_src The image source file.
|
|
* @param array $image_meta The image meta data as returned by
|
|
* 'wp_get_attachment_metadata()'.
|
|
* @param int $attachment_id The image attachment ID. Default 0.
|
|
*/
|
|
return apply_filters( 'wp_image_src_get_dimensions', $dimensions, $image_src, $image_meta, $attachment_id );
|
|
}
|
|
|
|
/**
|
|
* Adds 'srcset' and 'sizes' attributes to an existing 'img' element.
|
|
*
|
|
* @since 4.4.0
|
|
*
|
|
* @see wp_calculate_image_srcset()
|
|
* @see wp_calculate_image_sizes()
|
|
*
|
|
* @param string $image An HTML 'img' element to be filtered.
|
|
* @param array $image_meta The image meta data as returned by 'wp_get_attachment_metadata()'.
|
|
* @param int $attachment_id Image attachment ID.
|
|
* @return string Converted 'img' element with 'srcset' and 'sizes' attributes added.
|
|
*/
|
|
function wp_image_add_srcset_and_sizes( $image, $image_meta, $attachment_id ) {
|
|
// Ensure the image meta exists.
|
|
if ( empty( $image_meta['sizes'] ) ) {
|
|
return $image;
|
|
}
|
|
|
|
$image_src = preg_match( '/src="([^"]+)"/', $image, $match_src ) ? $match_src[1] : '';
|
|
list( $image_src ) = explode( '?', $image_src );
|
|
|
|
// Return early if we couldn't get the image source.
|
|
if ( ! $image_src ) {
|
|
return $image;
|
|
}
|
|
|
|
// Bail early if an image has been inserted and later edited.
|
|
if ( preg_match( '/-e[0-9]{13}/', $image_meta['file'], $img_edit_hash )
|
|
&& ! str_contains( wp_basename( $image_src ), $img_edit_hash[0] )
|
|
) {
|
|
return $image;
|
|
}
|
|
|
|
$width = preg_match( '/ width="([0-9]+)"/', $image, $match_width ) ? (int) $match_width[1] : 0;
|
|
$height = preg_match( '/ height="([0-9]+)"/', $image, $match_height ) ? (int) $match_height[1] : 0;
|
|
|
|
if ( $width && $height ) {
|
|
$size_array = array( $width, $height );
|
|
} else {
|
|
$size_array = wp_image_src_get_dimensions( $image_src, $image_meta, $attachment_id );
|
|
if ( ! $size_array ) {
|
|
return $image;
|
|
}
|
|
}
|
|
|
|
$srcset = wp_calculate_image_srcset( $size_array, $image_src, $image_meta, $attachment_id );
|
|
|
|
if ( $srcset ) {
|
|
// Check if there is already a 'sizes' attribute.
|
|
$sizes = strpos( $image, ' sizes=' );
|
|
|
|
if ( ! $sizes ) {
|
|
$sizes = wp_calculate_image_sizes( $size_array, $image_src, $image_meta, $attachment_id );
|
|
}
|
|
}
|
|
|
|
if ( $srcset && $sizes ) {
|
|
// Format the 'srcset' and 'sizes' string and escape attributes.
|
|
$attr = sprintf( ' srcset="%s"', esc_attr( $srcset ) );
|
|
|
|
if ( is_string( $sizes ) ) {
|
|
$attr .= sprintf( ' sizes="%s"', esc_attr( $sizes ) );
|
|
}
|
|
|
|
// Add the srcset and sizes attributes to the image markup.
|
|
return preg_replace( '/<img ([^>]+?)[\/ ]*>/', '<img $1' . $attr . ' />', $image );
|
|
}
|
|
|
|
return $image;
|
|
}
|
|
|
|
/**
|
|
* Determines whether to add the `loading` attribute to the specified tag in the specified context.
|
|
*
|
|
* @since 5.5.0
|
|
* @since 5.7.0 Now returns `true` by default for `iframe` tags.
|
|
*
|
|
* @param string $tag_name The tag name.
|
|
* @param string $context Additional context, like the current filter name
|
|
* or the function name from where this was called.
|
|
* @return bool Whether to add the attribute.
|
|
*/
|
|
function wp_lazy_loading_enabled( $tag_name, $context ) {
|
|
/*
|
|
* By default add to all 'img' and 'iframe' tags.
|
|
* See https://html.spec.whatwg.org/multipage/embedded-content.html#attr-img-loading
|
|
* See https://html.spec.whatwg.org/multipage/iframe-embed-object.html#attr-iframe-loading
|
|
*/
|
|
$default = ( 'img' === $tag_name || 'iframe' === $tag_name );
|
|
|
|
/**
|
|
* Filters whether to add the `loading` attribute to the specified tag in the specified context.
|
|
*
|
|
* @since 5.5.0
|
|
*
|
|
* @param bool $default Default value.
|
|
* @param string $tag_name The tag name.
|
|
* @param string $context Additional context, like the current filter name
|
|
* or the function name from where this was called.
|
|
*/
|
|
return (bool) apply_filters( 'wp_lazy_loading_enabled', $default, $tag_name, $context );
|
|
}
|
|
|
|
/**
|
|
* Filters specific tags in post content and modifies their markup.
|
|
*
|
|
* Modifies HTML tags in post content to include new browser and HTML technologies
|
|
* that may not have existed at the time of post creation. These modifications currently
|
|
* include adding `srcset`, `sizes`, and `loading` attributes to `img` HTML tags, as well
|
|
* as adding `loading` attributes to `iframe` HTML tags.
|
|
* Future similar optimizations should be added/expected here.
|
|
*
|
|
* @since 5.5.0
|
|
* @since 5.7.0 Now supports adding `loading` attributes to `iframe` tags.
|
|
*
|
|
* @see wp_img_tag_add_width_and_height_attr()
|
|
* @see wp_img_tag_add_srcset_and_sizes_attr()
|
|
* @see wp_img_tag_add_loading_optimization_attrs()
|
|
* @see wp_iframe_tag_add_loading_attr()
|
|
*
|
|
* @param string $content The HTML content to be filtered.
|
|
* @param string $context Optional. Additional context to pass to the filters.
|
|
* Defaults to `current_filter()` when not set.
|
|
* @return string Converted content with images modified.
|
|
*/
|
|
function wp_filter_content_tags( $content, $context = null ) {
|
|
if ( null === $context ) {
|
|
$context = current_filter();
|
|
}
|
|
|
|
$add_iframe_loading_attr = wp_lazy_loading_enabled( 'iframe', $context );
|
|
|
|
if ( ! preg_match_all( '/<(img|iframe)\s[^>]+>/', $content, $matches, PREG_SET_ORDER ) ) {
|
|
return $content;
|
|
}
|
|
|
|
// List of the unique `img` tags found in $content.
|
|
$images = array();
|
|
|
|
// List of the unique `iframe` tags found in $content.
|
|
$iframes = array();
|
|
|
|
foreach ( $matches as $match ) {
|
|
list( $tag, $tag_name ) = $match;
|
|
|
|
switch ( $tag_name ) {
|
|
case 'img':
|
|
if ( preg_match( '/wp-image-([0-9]+)/i', $tag, $class_id ) ) {
|
|
$attachment_id = absint( $class_id[1] );
|
|
|
|
if ( $attachment_id ) {
|
|
/*
|
|
* If exactly the same image tag is used more than once, overwrite it.
|
|
* All identical tags will be replaced later with 'str_replace()'.
|
|
*/
|
|
$images[ $tag ] = $attachment_id;
|
|
break;
|
|
}
|
|
}
|
|
$images[ $tag ] = 0;
|
|
break;
|
|
case 'iframe':
|
|
$iframes[ $tag ] = 0;
|
|
break;
|
|
}
|
|
}
|
|
|
|
// Reduce the array to unique attachment IDs.
|
|
$attachment_ids = array_unique( array_filter( array_values( $images ) ) );
|
|
|
|
if ( count( $attachment_ids ) > 1 ) {
|
|
/*
|
|
* Warm the object cache with post and meta information for all found
|
|
* images to avoid making individual database calls.
|
|
*/
|
|
_prime_post_caches( $attachment_ids, false, true );
|
|
}
|
|
|
|
// Iterate through the matches in order of occurrence as it is relevant for whether or not to lazy-load.
|
|
foreach ( $matches as $match ) {
|
|
// Filter an image match.
|
|
if ( isset( $images[ $match[0] ] ) ) {
|
|
$filtered_image = $match[0];
|
|
$attachment_id = $images[ $match[0] ];
|
|
|
|
// Add 'width' and 'height' attributes if applicable.
|
|
if ( $attachment_id > 0 && ! str_contains( $filtered_image, ' width=' ) && ! str_contains( $filtered_image, ' height=' ) ) {
|
|
$filtered_image = wp_img_tag_add_width_and_height_attr( $filtered_image, $context, $attachment_id );
|
|
}
|
|
|
|
// Add 'srcset' and 'sizes' attributes if applicable.
|
|
if ( $attachment_id > 0 && ! str_contains( $filtered_image, ' srcset=' ) ) {
|
|
$filtered_image = wp_img_tag_add_srcset_and_sizes_attr( $filtered_image, $context, $attachment_id );
|
|
}
|
|
|
|
// Add loading optimization attributes if applicable.
|
|
$filtered_image = wp_img_tag_add_loading_optimization_attrs( $filtered_image, $context );
|
|
|
|
/**
|
|
* Filters an img tag within the content for a given context.
|
|
*
|
|
* @since 6.0.0
|
|
*
|
|
* @param string $filtered_image Full img tag with attributes that will replace the source img tag.
|
|
* @param string $context Additional context, like the current filter name or the function name from where this was called.
|
|
* @param int $attachment_id The image attachment ID. May be 0 in case the image is not an attachment.
|
|
*/
|
|
$filtered_image = apply_filters( 'wp_content_img_tag', $filtered_image, $context, $attachment_id );
|
|
|
|
if ( $filtered_image !== $match[0] ) {
|
|
$content = str_replace( $match[0], $filtered_image, $content );
|
|
}
|
|
|
|
/*
|
|
* Unset image lookup to not run the same logic again unnecessarily if the same image tag is used more than
|
|
* once in the same blob of content.
|
|
*/
|
|
unset( $images[ $match[0] ] );
|
|
}
|
|
|
|
// Filter an iframe match.
|
|
if ( isset( $iframes[ $match[0] ] ) ) {
|
|
$filtered_iframe = $match[0];
|
|
|
|
// Add 'loading' attribute if applicable.
|
|
if ( $add_iframe_loading_attr && ! str_contains( $filtered_iframe, ' loading=' ) ) {
|
|
$filtered_iframe = wp_iframe_tag_add_loading_attr( $filtered_iframe, $context );
|
|
}
|
|
|
|
if ( $filtered_iframe !== $match[0] ) {
|
|
$content = str_replace( $match[0], $filtered_iframe, $content );
|
|
}
|
|
|
|
/*
|
|
* Unset iframe lookup to not run the same logic again unnecessarily if the same iframe tag is used more
|
|
* than once in the same blob of content.
|
|
*/
|
|
unset( $iframes[ $match[0] ] );
|
|
}
|
|
}
|
|
|
|
return $content;
|
|
}
|
|
|
|
/**
|
|
* Adds optimization attributes to an `img` HTML tag.
|
|
*
|
|
* @since 6.3.0
|
|
*
|
|
* @param string $image The HTML `img` tag where the attribute should be added.
|
|
* @param string $context Additional context to pass to the filters.
|
|
* @return string Converted `img` tag with optimization attributes added.
|
|
*/
|
|
function wp_img_tag_add_loading_optimization_attrs( $image, $context ) {
|
|
$width = preg_match( '/ width=["\']([0-9]+)["\']/', $image, $match_width ) ? (int) $match_width[1] : null;
|
|
$height = preg_match( '/ height=["\']([0-9]+)["\']/', $image, $match_height ) ? (int) $match_height[1] : null;
|
|
$loading_val = preg_match( '/ loading=["\']([A-Za-z]+)["\']/', $image, $match_loading ) ? $match_loading[1] : null;
|
|
$fetchpriority_val = preg_match( '/ fetchpriority=["\']([A-Za-z]+)["\']/', $image, $match_fetchpriority ) ? $match_fetchpriority[1] : null;
|
|
$decoding_val = preg_match( '/ decoding=["\']([A-Za-z]+)["\']/', $image, $match_decoding ) ? $match_decoding[1] : null;
|
|
|
|
/*
|
|
* Get loading optimization attributes to use.
|
|
* This must occur before the conditional check below so that even images
|
|
* that are ineligible for being lazy-loaded are considered.
|
|
*/
|
|
$optimization_attrs = wp_get_loading_optimization_attributes(
|
|
'img',
|
|
array(
|
|
'width' => $width,
|
|
'height' => $height,
|
|
'loading' => $loading_val,
|
|
'fetchpriority' => $fetchpriority_val,
|
|
'decoding' => $decoding_val,
|
|
),
|
|
$context
|
|
);
|
|
|
|
// Images should have source for the loading optimization attributes to be added.
|
|
if ( ! str_contains( $image, ' src="' ) ) {
|
|
return $image;
|
|
}
|
|
|
|
if ( empty( $decoding_val ) ) {
|
|
/**
|
|
* Filters the `decoding` attribute value to add to an image. Default `async`.
|
|
*
|
|
* Returning a falsey value will omit the attribute.
|
|
*
|
|
* @since 6.1.0
|
|
*
|
|
* @param string|false|null $value The `decoding` attribute value. Returning a falsey value
|
|
* will result in the attribute being omitted for the image.
|
|
* Otherwise, it may be: 'async', 'sync', or 'auto'. Defaults to false.
|
|
* @param string $image The HTML `img` tag to be filtered.
|
|
* @param string $context Additional context about how the function was called
|
|
* or where the img tag is.
|
|
*/
|
|
$filtered_decoding_attr = apply_filters(
|
|
'wp_img_tag_add_decoding_attr',
|
|
isset( $optimization_attrs['decoding'] ) ? $optimization_attrs['decoding'] : false,
|
|
$image,
|
|
$context
|
|
);
|
|
|
|
// Validate the values after filtering.
|
|
if ( isset( $optimization_attrs['decoding'] ) && ! $filtered_decoding_attr ) {
|
|
// Unset `decoding` attribute if `$filtered_decoding_attr` is set to `false`.
|
|
unset( $optimization_attrs['decoding'] );
|
|
} elseif ( in_array( $filtered_decoding_attr, array( 'async', 'sync', 'auto' ), true ) ) {
|
|
$optimization_attrs['decoding'] = $filtered_decoding_attr;
|
|
}
|
|
|
|
if ( ! empty( $optimization_attrs['decoding'] ) ) {
|
|
$image = str_replace( '<img', '<img decoding="' . esc_attr( $optimization_attrs['decoding'] ) . '"', $image );
|
|
}
|
|
}
|
|
|
|
// Images should have dimension attributes for the 'loading' and 'fetchpriority' attributes to be added.
|
|
if ( ! str_contains( $image, ' width="' ) || ! str_contains( $image, ' height="' ) ) {
|
|
return $image;
|
|
}
|
|
|
|
// Retained for backward compatibility.
|
|
$loading_attrs_enabled = wp_lazy_loading_enabled( 'img', $context );
|
|
|
|
if ( empty( $loading_val ) && $loading_attrs_enabled ) {
|
|
/**
|
|
* Filters the `loading` attribute value to add to an image. Default `lazy`.
|
|
*
|
|
* Returning `false` or an empty string will not add the attribute.
|
|
* Returning `true` will add the default value.
|
|
*
|
|
* @since 5.5.0
|
|
*
|
|
* @param string|bool $value The `loading` attribute value. Returning a falsey value will result in
|
|
* the attribute being omitted for the image.
|
|
* @param string $image The HTML `img` tag to be filtered.
|
|
* @param string $context Additional context about how the function was called or where the img tag is.
|
|
*/
|
|
$filtered_loading_attr = apply_filters(
|
|
'wp_img_tag_add_loading_attr',
|
|
isset( $optimization_attrs['loading'] ) ? $optimization_attrs['loading'] : false,
|
|
$image,
|
|
$context
|
|
);
|
|
|
|
// Validate the values after filtering.
|
|
if ( isset( $optimization_attrs['loading'] ) && ! $filtered_loading_attr ) {
|
|
// Unset `loading` attributes if `$filtered_loading_attr` is set to `false`.
|
|
unset( $optimization_attrs['loading'] );
|
|
} elseif ( in_array( $filtered_loading_attr, array( 'lazy', 'eager' ), true ) ) {
|
|
/*
|
|
* If the filter changed the loading attribute to "lazy" when a fetchpriority attribute
|
|
* with value "high" is already present, trigger a warning since those two attribute
|
|
* values should be mutually exclusive.
|
|
*
|
|
* The same warning is present in `wp_get_loading_optimization_attributes()`, and here it
|
|
* is only intended for the specific scenario where the above filtered caused the problem.
|
|
*/
|
|
if ( isset( $optimization_attrs['fetchpriority'] ) && 'high' === $optimization_attrs['fetchpriority'] &&
|
|
( isset( $optimization_attrs['loading'] ) ? $optimization_attrs['loading'] : false ) !== $filtered_loading_attr &&
|
|
'lazy' === $filtered_loading_attr
|
|
) {
|
|
_doing_it_wrong(
|
|
__FUNCTION__,
|
|
__( 'An image should not be lazy-loaded and marked as high priority at the same time.' ),
|
|
'6.3.0'
|
|
);
|
|
}
|
|
|
|
// The filtered value will still be respected.
|
|
$optimization_attrs['loading'] = $filtered_loading_attr;
|
|
}
|
|
|
|
if ( ! empty( $optimization_attrs['loading'] ) ) {
|
|
$image = str_replace( '<img', '<img loading="' . esc_attr( $optimization_attrs['loading'] ) . '"', $image );
|
|
}
|
|
}
|
|
|
|
if ( empty( $fetchpriority_val ) && ! empty( $optimization_attrs['fetchpriority'] ) ) {
|
|
$image = str_replace( '<img', '<img fetchpriority="' . esc_attr( $optimization_attrs['fetchpriority'] ) . '"', $image );
|
|
}
|
|
|
|
return $image;
|
|
}
|
|
|
|
/**
|
|
* Adds `width` and `height` attributes to an `img` HTML tag.
|
|
*
|
|
* @since 5.5.0
|
|
*
|
|
* @param string $image The HTML `img` tag where the attribute should be added.
|
|
* @param string $context Additional context to pass to the filters.
|
|
* @param int $attachment_id Image attachment ID.
|
|
* @return string Converted 'img' element with 'width' and 'height' attributes added.
|
|
*/
|
|
function wp_img_tag_add_width_and_height_attr( $image, $context, $attachment_id ) {
|
|
$image_src = preg_match( '/src="([^"]+)"/', $image, $match_src ) ? $match_src[1] : '';
|
|
list( $image_src ) = explode( '?', $image_src );
|
|
|
|
// Return early if we couldn't get the image source.
|
|
if ( ! $image_src ) {
|
|
return $image;
|
|
}
|
|
|
|
/**
|
|
* Filters whether to add the missing `width` and `height` HTML attributes to the img tag. Default `true`.
|
|
*
|
|
* Returning anything else than `true` will not add the attributes.
|
|
*
|
|
* @since 5.5.0
|
|
*
|
|
* @param bool $value The filtered value, defaults to `true`.
|
|
* @param string $image The HTML `img` tag where the attribute should be added.
|
|
* @param string $context Additional context about how the function was called or where the img tag is.
|
|
* @param int $attachment_id The image attachment ID.
|
|
*/
|
|
$add = apply_filters( 'wp_img_tag_add_width_and_height_attr', true, $image, $context, $attachment_id );
|
|
|
|
if ( true === $add ) {
|
|
$image_meta = wp_get_attachment_metadata( $attachment_id );
|
|
$size_array = wp_image_src_get_dimensions( $image_src, $image_meta, $attachment_id );
|
|
|
|
if ( $size_array && $size_array[0] && $size_array[1] ) {
|
|
// If the width is enforced through style (e.g. in an inline image), calculate the dimension attributes.
|
|
$style_width = preg_match( '/style="width:\s*(\d+)px;"/', $image, $match_width ) ? (int) $match_width[1] : 0;
|
|
if ( $style_width ) {
|
|
$size_array[1] = (int) round( $size_array[1] * $style_width / $size_array[0] );
|
|
$size_array[0] = $style_width;
|
|
}
|
|
|
|
$hw = trim( image_hwstring( $size_array[0], $size_array[1] ) );
|
|
return str_replace( '<img', "<img {$hw}", $image );
|
|
}
|
|
}
|
|
|
|
return $image;
|
|
}
|
|
|
|
/**
|
|
* Adds `srcset` and `sizes` attributes to an existing `img` HTML tag.
|
|
*
|
|
* @since 5.5.0
|
|
*
|
|
* @param string $image The HTML `img` tag where the attribute should be added.
|
|
* @param string $context Additional context to pass to the filters.
|
|
* @param int $attachment_id Image attachment ID.
|
|
* @return string Converted 'img' element with 'loading' attribute added.
|
|
*/
|
|
function wp_img_tag_add_srcset_and_sizes_attr( $image, $context, $attachment_id ) {
|
|
/**
|
|
* Filters whether to add the `srcset` and `sizes` HTML attributes to the img tag. Default `true`.
|
|
*
|
|
* Returning anything else than `true` will not add the attributes.
|
|
*
|
|
* @since 5.5.0
|
|
*
|
|
* @param bool $value The filtered value, defaults to `true`.
|
|
* @param string $image The HTML `img` tag where the attribute should be added.
|
|
* @param string $context Additional context about how the function was called or where the img tag is.
|
|
* @param int $attachment_id The image attachment ID.
|
|
*/
|
|
$add = apply_filters( 'wp_img_tag_add_srcset_and_sizes_attr', true, $image, $context, $attachment_id );
|
|
|
|
if ( true === $add ) {
|
|
$image_meta = wp_get_attachment_metadata( $attachment_id );
|
|
return wp_image_add_srcset_and_sizes( $image, $image_meta, $attachment_id );
|
|
}
|
|
|
|
return $image;
|
|
}
|
|
|
|
/**
|
|
* Adds `loading` attribute to an `iframe` HTML tag.
|
|
*
|
|
* @since 5.7.0
|
|
*
|
|
* @param string $iframe The HTML `iframe` tag where the attribute should be added.
|
|
* @param string $context Additional context to pass to the filters.
|
|
* @return string Converted `iframe` tag with `loading` attribute added.
|
|
*/
|
|
function wp_iframe_tag_add_loading_attr( $iframe, $context ) {
|
|
/*
|
|
* Iframes with fallback content (see `wp_filter_oembed_result()`) should not be lazy-loaded because they are
|
|
* visually hidden initially.
|
|
*/
|
|
if ( str_contains( $iframe, ' data-secret="' ) ) {
|
|
return $iframe;
|
|
}
|
|
|
|
/*
|
|
* Get loading attribute value to use. This must occur before the conditional check below so that even iframes that
|
|
* are ineligible for being lazy-loaded are considered.
|
|
*/
|
|
$optimization_attrs = wp_get_loading_optimization_attributes(
|
|
'iframe',
|
|
array(
|
|
/*
|
|
* The concrete values for width and height are not important here for now
|
|
* since fetchpriority is not yet supported for iframes.
|
|
* TODO: Use WP_HTML_Tag_Processor to extract actual values once support is
|
|
* added.
|
|
*/
|
|
'width' => str_contains( $iframe, ' width="' ) ? 100 : null,
|
|
'height' => str_contains( $iframe, ' height="' ) ? 100 : null,
|
|
// This function is never called when a 'loading' attribute is already present.
|
|
'loading' => null,
|
|
),
|
|
$context
|
|
);
|
|
|
|
// Iframes should have source and dimension attributes for the `loading` attribute to be added.
|
|
if ( ! str_contains( $iframe, ' src="' ) || ! str_contains( $iframe, ' width="' ) || ! str_contains( $iframe, ' height="' ) ) {
|
|
return $iframe;
|
|
}
|
|
|
|
$value = isset( $optimization_attrs['loading'] ) ? $optimization_attrs['loading'] : false;
|
|
|
|
/**
|
|
* Filters the `loading` attribute value to add to an iframe. Default `lazy`.
|
|
*
|
|
* Returning `false` or an empty string will not add the attribute.
|
|
* Returning `true` will add the default value.
|
|
*
|
|
* @since 5.7.0
|
|
*
|
|
* @param string|bool $value The `loading` attribute value. Returning a falsey value will result in
|
|
* the attribute being omitted for the iframe.
|
|
* @param string $iframe The HTML `iframe` tag to be filtered.
|
|
* @param string $context Additional context about how the function was called or where the iframe tag is.
|
|
*/
|
|
$value = apply_filters( 'wp_iframe_tag_add_loading_attr', $value, $iframe, $context );
|
|
|
|
if ( $value ) {
|
|
if ( ! in_array( $value, array( 'lazy', 'eager' ), true ) ) {
|
|
$value = 'lazy';
|
|
}
|
|
|
|
return str_replace( '<iframe', '<iframe loading="' . esc_attr( $value ) . '"', $iframe );
|
|
}
|
|
|
|
return $iframe;
|
|
}
|
|
|
|
/**
|
|
* Adds a 'wp-post-image' class to post thumbnails. Internal use only.
|
|
*
|
|
* Uses the {@see 'begin_fetch_post_thumbnail_html'} and {@see 'end_fetch_post_thumbnail_html'}
|
|
* action hooks to dynamically add/remove itself so as to only filter post thumbnails.
|
|
*
|
|
* @ignore
|
|
* @since 2.9.0
|
|
*
|
|
* @param string[] $attr Array of thumbnail attributes including src, class, alt, title, keyed by attribute name.
|
|
* @return string[] Modified array of attributes including the new 'wp-post-image' class.
|
|
*/
|
|
function _wp_post_thumbnail_class_filter( $attr ) {
|
|
$attr['class'] .= ' wp-post-image';
|
|
return $attr;
|
|
}
|
|
|
|
/**
|
|
* Adds '_wp_post_thumbnail_class_filter' callback to the 'wp_get_attachment_image_attributes'
|
|
* filter hook. Internal use only.
|
|
*
|
|
* @ignore
|
|
* @since 2.9.0
|
|
*
|
|
* @param string[] $attr Array of thumbnail attributes including src, class, alt, title, keyed by attribute name.
|
|
*/
|
|
function _wp_post_thumbnail_class_filter_add( $attr ) {
|
|
add_filter( 'wp_get_attachment_image_attributes', '_wp_post_thumbnail_class_filter' );
|
|
}
|
|
|
|
/**
|
|
* Removes the '_wp_post_thumbnail_class_filter' callback from the 'wp_get_attachment_image_attributes'
|
|
* filter hook. Internal use only.
|
|
*
|
|
* @ignore
|
|
* @since 2.9.0
|
|
*
|
|
* @param string[] $attr Array of thumbnail attributes including src, class, alt, title, keyed by attribute name.
|
|
*/
|
|
function _wp_post_thumbnail_class_filter_remove( $attr ) {
|
|
remove_filter( 'wp_get_attachment_image_attributes', '_wp_post_thumbnail_class_filter' );
|
|
}
|
|
|
|
/**
|
|
* Overrides the context used in {@see wp_get_attachment_image()}. Internal use only.
|
|
*
|
|
* Uses the {@see 'begin_fetch_post_thumbnail_html'} and {@see 'end_fetch_post_thumbnail_html'}
|
|
* action hooks to dynamically add/remove itself so as to only filter post thumbnails.
|
|
*
|
|
* @ignore
|
|
* @since 6.3.0
|
|
* @access private
|
|
*
|
|
* @param string $context The context for rendering an attachment image.
|
|
* @return string Modified context set to 'the_post_thumbnail'.
|
|
*/
|
|
function _wp_post_thumbnail_context_filter( $context ) {
|
|
return 'the_post_thumbnail';
|
|
}
|
|
|
|
/**
|
|
* Adds the '_wp_post_thumbnail_context_filter' callback to the 'wp_get_attachment_image_context'
|
|
* filter hook. Internal use only.
|
|
*
|
|
* @ignore
|
|
* @since 6.3.0
|
|
* @access private
|
|
*/
|
|
function _wp_post_thumbnail_context_filter_add() {
|
|
add_filter( 'wp_get_attachment_image_context', '_wp_post_thumbnail_context_filter' );
|
|
}
|
|
|
|
/**
|
|
* Removes the '_wp_post_thumbnail_context_filter' callback from the 'wp_get_attachment_image_context'
|
|
* filter hook. Internal use only.
|
|
*
|
|
* @ignore
|
|
* @since 6.3.0
|
|
* @access private
|
|
*/
|
|
function _wp_post_thumbnail_context_filter_remove() {
|
|
remove_filter( 'wp_get_attachment_image_context', '_wp_post_thumbnail_context_filter' );
|
|
}
|
|
|
|
add_shortcode( 'wp_caption', 'img_caption_shortcode' );
|
|
add_shortcode( 'caption', 'img_caption_shortcode' );
|
|
|
|
/**
|
|
* Builds the Caption shortcode output.
|
|
*
|
|
* Allows a plugin to replace the content that would otherwise be returned. The
|
|
* filter is {@see 'img_caption_shortcode'} and passes an empty string, the attr
|
|
* parameter and the content parameter values.
|
|
*
|
|
* The supported attributes for the shortcode are 'id', 'caption_id', 'align',
|
|
* 'width', 'caption', and 'class'.
|
|
*
|
|
* @since 2.6.0
|
|
* @since 3.9.0 The `class` attribute was added.
|
|
* @since 5.1.0 The `caption_id` attribute was added.
|
|
* @since 5.9.0 The `$content` parameter default value changed from `null` to `''`.
|
|
*
|
|
* @param array $attr {
|
|
* Attributes of the caption shortcode.
|
|
*
|
|
* @type string $id ID of the image and caption container element, i.e. `<figure>` or `<div>`.
|
|
* @type string $caption_id ID of the caption element, i.e. `<figcaption>` or `<p>`.
|
|
* @type string $align Class name that aligns the caption. Default 'alignnone'. Accepts 'alignleft',
|
|
* 'aligncenter', alignright', 'alignnone'.
|
|
* @type int $width The width of the caption, in pixels.
|
|
* @type string $caption The caption text.
|
|
* @type string $class Additional class name(s) added to the caption container.
|
|
* }
|
|
* @param string $content Optional. Shortcode content. Default empty string.
|
|
* @return string HTML content to display the caption.
|
|
*/
|
|
function img_caption_shortcode( $attr, $content = '' ) {
|
|
// New-style shortcode with the caption inside the shortcode with the link and image tags.
|
|
if ( ! isset( $attr['caption'] ) ) {
|
|
if ( preg_match( '#((?:<a [^>]+>\s*)?<img [^>]+>(?:\s*</a>)?)(.*)#is', $content, $matches ) ) {
|
|
$content = $matches[1];
|
|
$attr['caption'] = trim( $matches[2] );
|
|
}
|
|
} elseif ( str_contains( $attr['caption'], '<' ) ) {
|
|
$attr['caption'] = wp_kses( $attr['caption'], 'post' );
|
|
}
|
|
|
|
/**
|
|
* Filters the default caption shortcode output.
|
|
*
|
|
* If the filtered output isn't empty, it will be used instead of generating
|
|
* the default caption template.
|
|
*
|
|
* @since 2.6.0
|
|
*
|
|
* @see img_caption_shortcode()
|
|
*
|
|
* @param string $output The caption output. Default empty.
|
|
* @param array $attr Attributes of the caption shortcode.
|
|
* @param string $content The image element, possibly wrapped in a hyperlink.
|
|
*/
|
|
$output = apply_filters( 'img_caption_shortcode', '', $attr, $content );
|
|
|
|
if ( ! empty( $output ) ) {
|
|
return $output;
|
|
}
|
|
|
|
$atts = shortcode_atts(
|
|
array(
|
|
'id' => '',
|
|
'caption_id' => '',
|
|
'align' => 'alignnone',
|
|
'width' => '',
|
|
'caption' => '',
|
|
'class' => '',
|
|
),
|
|
$attr,
|
|
'caption'
|
|
);
|
|
|
|
$atts['width'] = (int) $atts['width'];
|
|
|
|
if ( $atts['width'] < 1 || empty( $atts['caption'] ) ) {
|
|
return $content;
|
|
}
|
|
|
|
$id = '';
|
|
$caption_id = '';
|
|
$describedby = '';
|
|
|
|
if ( $atts['id'] ) {
|
|
$atts['id'] = sanitize_html_class( $atts['id'] );
|
|
$id = 'id="' . esc_attr( $atts['id'] ) . '" ';
|
|
}
|
|
|
|
if ( $atts['caption_id'] ) {
|
|
$atts['caption_id'] = sanitize_html_class( $atts['caption_id'] );
|
|
} elseif ( $atts['id'] ) {
|
|
$atts['caption_id'] = 'caption-' . str_replace( '_', '-', $atts['id'] );
|
|
}
|
|
|
|
if ( $atts['caption_id'] ) {
|
|
$caption_id = 'id="' . esc_attr( $atts['caption_id'] ) . '" ';
|
|
$describedby = 'aria-describedby="' . esc_attr( $atts['caption_id'] ) . '" ';
|
|
}
|
|
|
|
$class = trim( 'wp-caption ' . $atts['align'] . ' ' . $atts['class'] );
|
|
|
|
$html5 = current_theme_supports( 'html5', 'caption' );
|
|
// HTML5 captions never added the extra 10px to the image width.
|
|
$width = $html5 ? $atts['width'] : ( 10 + $atts['width'] );
|
|
|
|
/**
|
|
* Filters the width of an image's caption.
|
|
*
|
|
* By default, the caption is 10 pixels greater than the width of the image,
|
|
* to prevent post content from running up against a floated image.
|
|
*
|
|
* @since 3.7.0
|
|
*
|
|
* @see img_caption_shortcode()
|
|
*
|
|
* @param int $width Width of the caption in pixels. To remove this inline style,
|
|
* return zero.
|
|
* @param array $atts Attributes of the caption shortcode.
|
|
* @param string $content The image element, possibly wrapped in a hyperlink.
|
|
*/
|
|
$caption_width = apply_filters( 'img_caption_shortcode_width', $width, $atts, $content );
|
|
|
|
$style = '';
|
|
|
|
if ( $caption_width ) {
|
|
$style = 'style="width: ' . (int) $caption_width . 'px" ';
|
|
}
|
|
|
|
if ( $html5 ) {
|
|
$html = sprintf(
|
|
'<figure %s%s%sclass="%s">%s%s</figure>',
|
|
$id,
|
|
$describedby,
|
|
$style,
|
|
esc_attr( $class ),
|
|
do_shortcode( $content ),
|
|
sprintf(
|
|
'<figcaption %sclass="wp-caption-text">%s</figcaption>',
|
|
$caption_id,
|
|
$atts['caption']
|
|
)
|
|
);
|
|
} else {
|
|
$html = sprintf(
|
|
'<div %s%sclass="%s">%s%s</div>',
|
|
$id,
|
|
$style,
|
|
esc_attr( $class ),
|
|
str_replace( '<img ', '<img ' . $describedby, do_shortcode( $content ) ),
|
|
sprintf(
|
|
'<p %sclass="wp-caption-text">%s</p>',
|
|
$caption_id,
|
|
$atts['caption']
|
|
)
|
|
);
|
|
}
|
|
|
|
return $html;
|
|
}
|
|
|
|
add_shortcode( 'gallery', 'gallery_shortcode' );
|
|
|
|
/**
|
|
* Builds the Gallery shortcode output.
|
|
*
|
|
* This implements the functionality of the Gallery Shortcode for displaying
|
|
* WordPress images on a post.
|
|
*
|
|
* @since 2.5.0
|
|
* @since 2.8.0 Added the `$attr` parameter to set the shortcode output. New attributes included
|
|
* such as `size`, `itemtag`, `icontag`, `captiontag`, and columns. Changed markup from
|
|
* `div` tags to `dl`, `dt` and `dd` tags. Support more than one gallery on the
|
|
* same page.
|
|
* @since 2.9.0 Added support for `include` and `exclude` to shortcode.
|
|
* @since 3.5.0 Use get_post() instead of global `$post`. Handle mapping of `ids` to `include`
|
|
* and `orderby`.
|
|
* @since 3.6.0 Added validation for tags used in gallery shortcode. Add orientation information to items.
|
|
* @since 3.7.0 Introduced the `link` attribute.
|
|
* @since 3.9.0 `html5` gallery support, accepting 'itemtag', 'icontag', and 'captiontag' attributes.
|
|
* @since 4.0.0 Removed use of `extract()`.
|
|
* @since 4.1.0 Added attribute to `wp_get_attachment_link()` to output `aria-describedby`.
|
|
* @since 4.2.0 Passed the shortcode instance ID to `post_gallery` and `post_playlist` filters.
|
|
* @since 4.6.0 Standardized filter docs to match documentation standards for PHP.
|
|
* @since 5.1.0 Code cleanup for WPCS 1.0.0 coding standards.
|
|
* @since 5.3.0 Saved progress of intermediate image creation after upload.
|
|
* @since 5.5.0 Ensured that galleries can be output as a list of links in feeds.
|
|
* @since 5.6.0 Replaced order-style PHP type conversion functions with typecasts. Fix logic for
|
|
* an array of image dimensions.
|
|
*
|
|
* @param array $attr {
|
|
* Attributes of the gallery shortcode.
|
|
*
|
|
* @type string $order Order of the images in the gallery. Default 'ASC'. Accepts 'ASC', 'DESC'.
|
|
* @type string $orderby The field to use when ordering the images. Default 'menu_order ID'.
|
|
* Accepts any valid SQL ORDERBY statement.
|
|
* @type int $id Post ID.
|
|
* @type string $itemtag HTML tag to use for each image in the gallery.
|
|
* Default 'dl', or 'figure' when the theme registers HTML5 gallery support.
|
|
* @type string $icontag HTML tag to use for each image's icon.
|
|
* Default 'dt', or 'div' when the theme registers HTML5 gallery support.
|
|
* @type string $captiontag HTML tag to use for each image's caption.
|
|
* Default 'dd', or 'figcaption' when the theme registers HTML5 gallery support.
|
|
* @type int $columns Number of columns of images to display. Default 3.
|
|
* @type string|int[] $size Size of the images to display. Accepts any registered image size name, or an array
|
|
* of width and height values in pixels (in that order). Default 'thumbnail'.
|
|
* @type string $ids A comma-separated list of IDs of attachments to display. Default empty.
|
|
* @type string $include A comma-separated list of IDs of attachments to include. Default empty.
|
|
* @type string $exclude A comma-separated list of IDs of attachments to exclude. Default empty.
|
|
* @type string $link What to link each image to. Default empty (links to the attachment page).
|
|
* Accepts 'file', 'none'.
|
|
* }
|
|
* @return string HTML content to display gallery.
|
|
*/
|
|
function gallery_shortcode( $attr ) {
|
|
$post = get_post();
|
|
|
|
static $instance = 0;
|
|
++$instance;
|
|
|
|
if ( ! empty( $attr['ids'] ) ) {
|
|
// 'ids' is explicitly ordered, unless you specify otherwise.
|
|
if ( empty( $attr['orderby'] ) ) {
|
|
$attr['orderby'] = 'post__in';
|
|
}
|
|
$attr['include'] = $attr['ids'];
|
|
}
|
|
|
|
/**
|
|
* Filters the default gallery shortcode output.
|
|
*
|
|
* If the filtered output isn't empty, it will be used instead of generating
|
|
* the default gallery template.
|
|
*
|
|
* @since 2.5.0
|
|
* @since 4.2.0 The `$instance` parameter was added.
|
|
*
|
|
* @see gallery_shortcode()
|
|
*
|
|
* @param string $output The gallery output. Default empty.
|
|
* @param array $attr Attributes of the gallery shortcode.
|
|
* @param int $instance Unique numeric ID of this gallery shortcode instance.
|
|
*/
|
|
$output = apply_filters( 'post_gallery', '', $attr, $instance );
|
|
|
|
if ( ! empty( $output ) ) {
|
|
return $output;
|
|
}
|
|
|
|
$html5 = current_theme_supports( 'html5', 'gallery' );
|
|
$atts = shortcode_atts(
|
|
array(
|
|
'order' => 'ASC',
|
|
'orderby' => 'menu_order ID',
|
|
'id' => $post ? $post->ID : 0,
|
|
'itemtag' => $html5 ? 'figure' : 'dl',
|
|
'icontag' => $html5 ? 'div' : 'dt',
|
|
'captiontag' => $html5 ? 'figcaption' : 'dd',
|
|
'columns' => 3,
|
|
'size' => 'thumbnail',
|
|
'include' => '',
|
|
'exclude' => '',
|
|
'link' => '',
|
|
),
|
|
$attr,
|
|
'gallery'
|
|
);
|
|
|
|
$id = (int) $atts['id'];
|
|
|
|
if ( ! empty( $atts['include'] ) ) {
|
|
$_attachments = get_posts(
|
|
array(
|
|
'include' => $atts['include'],
|
|
'post_status' => 'inherit',
|
|
'post_type' => 'attachment',
|
|
'post_mime_type' => 'image',
|
|
'order' => $atts['order'],
|
|
'orderby' => $atts['orderby'],
|
|
)
|
|
);
|
|
|
|
$attachments = array();
|
|
foreach ( $_attachments as $key => $val ) {
|
|
$attachments[ $val->ID ] = $_attachments[ $key ];
|
|
}
|
|
} elseif ( ! empty( $atts['exclude'] ) ) {
|
|
$post_parent_id = $id;
|
|
$attachments = get_children(
|
|
array(
|
|
'post_parent' => $id,
|
|
'exclude' => $atts['exclude'],
|
|
'post_status' => 'inherit',
|
|
'post_type' => 'attachment',
|
|
'post_mime_type' => 'image',
|
|
'order' => $atts['order'],
|
|
'orderby' => $atts['orderby'],
|
|
)
|
|
);
|
|
} else {
|
|
$post_parent_id = $id;
|
|
$attachments = get_children(
|
|
array(
|
|
'post_parent' => $id,
|
|
'post_status' => 'inherit',
|
|
'post_type' => 'attachment',
|
|
'post_mime_type' => 'image',
|
|
'order' => $atts['order'],
|
|
'orderby' => $atts['orderby'],
|
|
)
|
|
);
|
|
}
|
|
|
|
if ( ! empty( $post_parent_id ) ) {
|
|
$post_parent = get_post( $post_parent_id );
|
|
|
|
// Terminate the shortcode execution if the user cannot read the post or it is password-protected.
|
|
if ( ! is_post_publicly_viewable( $post_parent->ID ) && ! current_user_can( 'read_post', $post_parent->ID )
|
|
|| post_password_required( $post_parent )
|
|
) {
|
|
return '';
|
|
}
|
|
}
|
|
|
|
if ( empty( $attachments ) ) {
|
|
return '';
|
|
}
|
|
|
|
if ( is_feed() ) {
|
|
$output = "\n";
|
|
foreach ( $attachments as $att_id => $attachment ) {
|
|
if ( ! empty( $atts['link'] ) ) {
|
|
if ( 'none' === $atts['link'] ) {
|
|
$output .= wp_get_attachment_image( $att_id, $atts['size'], false, $attr );
|
|
} else {
|
|
$output .= wp_get_attachment_link( $att_id, $atts['size'], false );
|
|
}
|
|
} else {
|
|
$output .= wp_get_attachment_link( $att_id, $atts['size'], true );
|
|
}
|
|
$output .= "\n";
|
|
}
|
|
return $output;
|
|
}
|
|
|
|
$itemtag = tag_escape( $atts['itemtag'] );
|
|
$captiontag = tag_escape( $atts['captiontag'] );
|
|
$icontag = tag_escape( $atts['icontag'] );
|
|
$valid_tags = wp_kses_allowed_html( 'post' );
|
|
if ( ! isset( $valid_tags[ $itemtag ] ) ) {
|
|
$itemtag = 'dl';
|
|
}
|
|
if ( ! isset( $valid_tags[ $captiontag ] ) ) {
|
|
$captiontag = 'dd';
|
|
}
|
|
if ( ! isset( $valid_tags[ $icontag ] ) ) {
|
|
$icontag = 'dt';
|
|
}
|
|
|
|
$columns = (int) $atts['columns'];
|
|
$itemwidth = $columns > 0 ? floor( 100 / $columns ) : 100;
|
|
$float = is_rtl() ? 'right' : 'left';
|
|
|
|
$selector = "gallery-{$instance}";
|
|
|
|
$gallery_style = '';
|
|
|
|
/**
|
|
* Filters whether to print default gallery styles.
|
|
*
|
|
* @since 3.1.0
|
|
*
|
|
* @param bool $print Whether to print default gallery styles.
|
|
* Defaults to false if the theme supports HTML5 galleries.
|
|
* Otherwise, defaults to true.
|
|
*/
|
|
if ( apply_filters( 'use_default_gallery_style', ! $html5 ) ) {
|
|
$type_attr = current_theme_supports( 'html5', 'style' ) ? '' : ' type="text/css"';
|
|
|
|
$gallery_style = "
|
|
<style{$type_attr}>
|
|
#{$selector} {
|
|
margin: auto;
|
|
}
|
|
#{$selector} .gallery-item {
|
|
float: {$float};
|
|
margin-top: 10px;
|
|
text-align: center;
|
|
width: {$itemwidth}%;
|
|
}
|
|
#{$selector} img {
|
|
border: 2px solid #cfcfcf;
|
|
}
|
|
#{$selector} .gallery-caption {
|
|
margin-left: 0;
|
|
}
|
|
/* see gallery_shortcode() in wp-includes/media.php */
|
|
</style>\n\t\t";
|
|
}
|
|
|
|
$size_class = sanitize_html_class( is_array( $atts['size'] ) ? implode( 'x', $atts['size'] ) : $atts['size'] );
|
|
$gallery_div = "<div id='$selector' class='gallery galleryid-{$id} gallery-columns-{$columns} gallery-size-{$size_class}'>";
|
|
|
|
/**
|
|
* Filters the default gallery shortcode CSS styles.
|
|
*
|
|
* @since 2.5.0
|
|
*
|
|
* @param string $gallery_style Default CSS styles and opening HTML div container
|
|
* for the gallery shortcode output.
|
|
*/
|
|
$output = apply_filters( 'gallery_style', $gallery_style . $gallery_div );
|
|
|
|
$i = 0;
|
|
|
|
foreach ( $attachments as $id => $attachment ) {
|
|
|
|
$attr = ( trim( $attachment->post_excerpt ) ) ? array( 'aria-describedby' => "$selector-$id" ) : '';
|
|
|
|
if ( ! empty( $atts['link'] ) && 'file' === $atts['link'] ) {
|
|
$image_output = wp_get_attachment_link( $id, $atts['size'], false, false, false, $attr );
|
|
} elseif ( ! empty( $atts['link'] ) && 'none' === $atts['link'] ) {
|
|
$image_output = wp_get_attachment_image( $id, $atts['size'], false, $attr );
|
|
} else {
|
|
$image_output = wp_get_attachment_link( $id, $atts['size'], true, false, false, $attr );
|
|
}
|
|
|
|
$image_meta = wp_get_attachment_metadata( $id );
|
|
|
|
$orientation = '';
|
|
|
|
if ( isset( $image_meta['height'], $image_meta['width'] ) ) {
|
|
$orientation = ( $image_meta['height'] > $image_meta['width'] ) ? 'portrait' : 'landscape';
|
|
}
|
|
|
|
$output .= "<{$itemtag} class='gallery-item'>";
|
|
$output .= "
|
|
<{$icontag} class='gallery-icon {$orientation}'>
|
|
$image_output
|
|
</{$icontag}>";
|
|
|
|
if ( $captiontag && trim( $attachment->post_excerpt ) ) {
|
|
$output .= "
|
|
<{$captiontag} class='wp-caption-text gallery-caption' id='$selector-$id'>
|
|
" . wptexturize( $attachment->post_excerpt ) . "
|
|
</{$captiontag}>";
|
|
}
|
|
|
|
$output .= "</{$itemtag}>";
|
|
|
|
if ( ! $html5 && $columns > 0 && 0 === ++$i % $columns ) {
|
|
$output .= '<br style="clear: both" />';
|
|
}
|
|
}
|
|
|
|
if ( ! $html5 && $columns > 0 && 0 !== $i % $columns ) {
|
|
$output .= "
|
|
<br style='clear: both' />";
|
|
}
|
|
|
|
$output .= "
|
|
</div>\n";
|
|
|
|
return $output;
|
|
}
|
|
|
|
/**
|
|
* Outputs the templates used by playlists.
|
|
*
|
|
* @since 3.9.0
|
|
*/
|
|
function wp_underscore_playlist_templates() {
|
|
?>
|
|
<script type="text/html" id="tmpl-wp-playlist-current-item">
|
|
<# if ( data.thumb && data.thumb.src ) { #>
|
|
<img src="{{ data.thumb.src }}" alt="" />
|
|
<# } #>
|
|
<div class="wp-playlist-caption">
|
|
<span class="wp-playlist-item-meta wp-playlist-item-title">
|
|
<# if ( data.meta.album || data.meta.artist ) { #>
|
|
<?php
|
|
/* translators: %s: Playlist item title. */
|
|
printf( _x( '“%s”', 'playlist item title' ), '{{ data.title }}' );
|
|
?>
|
|
<# } else { #>
|
|
{{ data.title }}
|
|
<# } #>
|
|
</span>
|
|
<# if ( data.meta.album ) { #><span class="wp-playlist-item-meta wp-playlist-item-album">{{ data.meta.album }}</span><# } #>
|
|
<# if ( data.meta.artist ) { #><span class="wp-playlist-item-meta wp-playlist-item-artist">{{ data.meta.artist }}</span><# } #>
|
|
</div>
|
|
</script>
|
|
<script type="text/html" id="tmpl-wp-playlist-item">
|
|
<div class="wp-playlist-item">
|
|
<a class="wp-playlist-caption" href="{{ data.src }}">
|
|
{{ data.index ? ( data.index + '. ' ) : '' }}
|
|
<# if ( data.caption ) { #>
|
|
{{ data.caption }}
|
|
<# } else { #>
|
|
<# if ( data.artists && data.meta.artist ) { #>
|
|
<span class="wp-playlist-item-title">
|
|
<?php
|
|
/* translators: %s: Playlist item title. */
|
|
printf( _x( '“%s”', 'playlist item title' ), '{{{ data.title }}}' );
|
|
?>
|
|
</span>
|
|
<span class="wp-playlist-item-artist"> — {{ data.meta.artist }}</span>
|
|
<# } else { #>
|
|
<span class="wp-playlist-item-title">{{{ data.title }}}</span>
|
|
<# } #>
|
|
<# } #>
|
|
</a>
|
|
<# if ( data.meta.length_formatted ) { #>
|
|
<div class="wp-playlist-item-length">{{ data.meta.length_formatted }}</div>
|
|
<# } #>
|
|
</div>
|
|
</script>
|
|
<?php
|
|
}
|
|
|
|
/**
|
|
* Outputs and enqueues default scripts and styles for playlists.
|
|
*
|
|
* @since 3.9.0
|
|
*
|
|
* @param string $type Type of playlist. Accepts 'audio' or 'video'.
|
|
*/
|
|
function wp_playlist_scripts( $type ) {
|
|
wp_enqueue_style( 'wp-mediaelement' );
|
|
wp_enqueue_script( 'wp-playlist' );
|
|
?>
|
|
<!--[if lt IE 9]><script>document.createElement('<?php echo esc_js( $type ); ?>');</script><![endif]-->
|
|
<?php
|
|
add_action( 'wp_footer', 'wp_underscore_playlist_templates', 0 );
|
|
add_action( 'admin_footer', 'wp_underscore_playlist_templates', 0 );
|
|
}
|
|
|
|
/**
|
|
* Builds the Playlist shortcode output.
|
|
*
|
|
* This implements the functionality of the playlist shortcode for displaying
|
|
* a collection of WordPress audio or video files in a post.
|
|
*
|
|
* @since 3.9.0
|
|
*
|
|
* @global int $content_width
|
|
*
|
|
* @param array $attr {
|
|
* Array of default playlist attributes.
|
|
*
|
|
* @type string $type Type of playlist to display. Accepts 'audio' or 'video'. Default 'audio'.
|
|
* @type string $order Designates ascending or descending order of items in the playlist.
|
|
* Accepts 'ASC', 'DESC'. Default 'ASC'.
|
|
* @type string $orderby Any column, or columns, to sort the playlist. If $ids are
|
|
* passed, this defaults to the order of the $ids array ('post__in').
|
|
* Otherwise default is 'menu_order ID'.
|
|
* @type int $id If an explicit $ids array is not present, this parameter
|
|
* will determine which attachments are used for the playlist.
|
|
* Default is the current post ID.
|
|
* @type array $ids Create a playlist out of these explicit attachment IDs. If empty,
|
|
* a playlist will be created from all $type attachments of $id.
|
|
* Default empty.
|
|
* @type array $exclude List of specific attachment IDs to exclude from the playlist. Default empty.
|
|
* @type string $style Playlist style to use. Accepts 'light' or 'dark'. Default 'light'.
|
|
* @type bool $tracklist Whether to show or hide the playlist. Default true.
|
|
* @type bool $tracknumbers Whether to show or hide the numbers next to entries in the playlist. Default true.
|
|
* @type bool $images Show or hide the video or audio thumbnail (Featured Image/post
|
|
* thumbnail). Default true.
|
|
* @type bool $artists Whether to show or hide artist name in the playlist. Default true.
|
|
* }
|
|
*
|
|
* @return string Playlist output. Empty string if the passed type is unsupported.
|
|
*/
|
|
function wp_playlist_shortcode( $attr ) {
|
|
global $content_width;
|
|
$post = get_post();
|
|
|
|
static $instance = 0;
|
|
++$instance;
|
|
|
|
if ( ! empty( $attr['ids'] ) ) {
|
|
// 'ids' is explicitly ordered, unless you specify otherwise.
|
|
if ( empty( $attr['orderby'] ) ) {
|
|
$attr['orderby'] = 'post__in';
|
|
}
|
|
$attr['include'] = $attr['ids'];
|
|
}
|
|
|
|
/**
|
|
* Filters the playlist output.
|
|
*
|
|
* Returning a non-empty value from the filter will short-circuit generation
|
|
* of the default playlist output, returning the passed value instead.
|
|
*
|
|
* @since 3.9.0
|
|
* @since 4.2.0 The `$instance` parameter was added.
|
|
*
|
|
* @param string $output Playlist output. Default empty.
|
|
* @param array $attr An array of shortcode attributes.
|
|
* @param int $instance Unique numeric ID of this playlist shortcode instance.
|
|
*/
|
|
$output = apply_filters( 'post_playlist', '', $attr, $instance );
|
|
|
|
if ( ! empty( $output ) ) {
|
|
return $output;
|
|
}
|
|
|
|
$atts = shortcode_atts(
|
|
array(
|
|
'type' => 'audio',
|
|
'order' => 'ASC',
|
|
'orderby' => 'menu_order ID',
|
|
'id' => $post ? $post->ID : 0,
|
|
'include' => '',
|
|
'exclude' => '',
|
|
'style' => 'light',
|
|
'tracklist' => true,
|
|
'tracknumbers' => true,
|
|
'images' => true,
|
|
'artists' => true,
|
|
),
|
|
$attr,
|
|
'playlist'
|
|
);
|
|
|
|
$id = (int) $atts['id'];
|
|
|
|
if ( 'audio' !== $atts['type'] ) {
|
|
$atts['type'] = 'video';
|
|
}
|
|
|
|
$args = array(
|
|
'post_status' => 'inherit',
|
|
'post_type' => 'attachment',
|
|
'post_mime_type' => $atts['type'],
|
|
'order' => $atts['order'],
|
|
'orderby' => $atts['orderby'],
|
|
);
|
|
|
|
if ( ! empty( $atts['include'] ) ) {
|
|
$args['include'] = $atts['include'];
|
|
$_attachments = get_posts( $args );
|
|
|
|
$attachments = array();
|
|
foreach ( $_attachments as $key => $val ) {
|
|
$attachments[ $val->ID ] = $_attachments[ $key ];
|
|
}
|
|
} elseif ( ! empty( $atts['exclude'] ) ) {
|
|
$args['post_parent'] = $id;
|
|
$args['exclude'] = $atts['exclude'];
|
|
$attachments = get_children( $args );
|
|
} else {
|
|
$args['post_parent'] = $id;
|
|
$attachments = get_children( $args );
|
|
}
|
|
|
|
if ( ! empty( $args['post_parent'] ) ) {
|
|
$post_parent = get_post( $id );
|
|
|
|
// Terminate the shortcode execution if the user cannot read the post or it is password-protected.
|
|
if ( ! current_user_can( 'read_post', $post_parent->ID ) || post_password_required( $post_parent ) ) {
|
|
return '';
|
|
}
|
|
}
|
|
|
|
if ( empty( $attachments ) ) {
|
|
return '';
|
|
}
|
|
|
|
if ( is_feed() ) {
|
|
$output = "\n";
|
|
foreach ( $attachments as $att_id => $attachment ) {
|
|
$output .= wp_get_attachment_link( $att_id ) . "\n";
|
|
}
|
|
return $output;
|
|
}
|
|
|
|
$outer = 22; // Default padding and border of wrapper.
|
|
|
|
$default_width = 640;
|
|
$default_height = 360;
|
|
|
|
$theme_width = empty( $content_width ) ? $default_width : ( $content_width - $outer );
|
|
$theme_height = empty( $content_width ) ? $default_height : round( ( $default_height * $theme_width ) / $default_width );
|
|
|
|
$data = array(
|
|
'type' => $atts['type'],
|
|
// Don't pass strings to JSON, will be truthy in JS.
|
|
'tracklist' => wp_validate_boolean( $atts['tracklist'] ),
|
|
'tracknumbers' => wp_validate_boolean( $atts['tracknumbers'] ),
|
|
'images' => wp_validate_boolean( $atts['images'] ),
|
|
'artists' => wp_validate_boolean( $atts['artists'] ),
|
|
);
|
|
|
|
$tracks = array();
|
|
foreach ( $attachments as $attachment ) {
|
|
$url = wp_get_attachment_url( $attachment->ID );
|
|
$ftype = wp_check_filetype( $url, wp_get_mime_types() );
|
|
$track = array(
|
|
'src' => $url,
|
|
'type' => $ftype['type'],
|
|
'title' => $attachment->post_title,
|
|
'caption' => $attachment->post_excerpt,
|
|
'description' => $attachment->post_content,
|
|
);
|
|
|
|
$track['meta'] = array();
|
|
$meta = wp_get_attachment_metadata( $attachment->ID );
|
|
if ( ! empty( $meta ) ) {
|
|
|
|
foreach ( wp_get_attachment_id3_keys( $attachment ) as $key => $label ) {
|
|
if ( ! empty( $meta[ $key ] ) ) {
|
|
$track['meta'][ $key ] = $meta[ $key ];
|
|
}
|
|
}
|
|
|
|
if ( 'video' === $atts['type'] ) {
|
|
if ( ! empty( $meta['width'] ) && ! empty( $meta['height'] ) ) {
|
|
$width = $meta['width'];
|
|
$height = $meta['height'];
|
|
$theme_height = round( ( $height * $theme_width ) / $width );
|
|
} else {
|
|
$width = $default_width;
|
|
$height = $default_height;
|
|
}
|
|
|
|
$track['dimensions'] = array(
|
|
'original' => compact( 'width', 'height' ),
|
|
'resized' => array(
|
|
'width' => $theme_width,
|
|
'height' => $theme_height,
|
|
),
|
|
);
|
|
}
|
|
}
|
|
|
|
if ( $atts['images'] ) {
|
|
$thumb_id = get_post_thumbnail_id( $attachment->ID );
|
|
if ( ! empty( $thumb_id ) ) {
|
|
list( $src, $width, $height ) = wp_get_attachment_image_src( $thumb_id, 'full' );
|
|
$track['image'] = compact( 'src', 'width', 'height' );
|
|
list( $src, $width, $height ) = wp_get_attachment_image_src( $thumb_id, 'thumbnail' );
|
|
$track['thumb'] = compact( 'src', 'width', 'height' );
|
|
} else {
|
|
$src = wp_mime_type_icon( $attachment->ID, '.svg' );
|
|
$width = 48;
|
|
$height = 64;
|
|
$track['image'] = compact( 'src', 'width', 'height' );
|
|
$track['thumb'] = compact( 'src', 'width', 'height' );
|
|
}
|
|
}
|
|
|
|
$tracks[] = $track;
|
|
}
|
|
$data['tracks'] = $tracks;
|
|
|
|
$safe_type = esc_attr( $atts['type'] );
|
|
$safe_style = esc_attr( $atts['style'] );
|
|
|
|
ob_start();
|
|
|
|
if ( 1 === $instance ) {
|
|
/**
|
|
* Prints and enqueues playlist scripts, styles, and JavaScript templates.
|
|
*
|
|
* @since 3.9.0
|
|
*
|
|
* @param string $type Type of playlist. Possible values are 'audio' or 'video'.
|
|
* @param string $style The 'theme' for the playlist. Core provides 'light' and 'dark'.
|
|
*/
|
|
do_action( 'wp_playlist_scripts', $atts['type'], $atts['style'] );
|
|
}
|
|
?>
|
|
<div class="wp-playlist wp-<?php echo $safe_type; ?>-playlist wp-playlist-<?php echo $safe_style; ?>">
|
|
<?php if ( 'audio' === $atts['type'] ) : ?>
|
|
<div class="wp-playlist-current-item"></div>
|
|
<?php endif; ?>
|
|
<<?php echo $safe_type; ?> controls="controls" preload="none" width="<?php echo (int) $theme_width; ?>"
|
|
<?php
|
|
if ( 'video' === $safe_type ) {
|
|
echo ' height="', (int) $theme_height, '"';
|
|
}
|
|
?>
|
|
></<?php echo $safe_type; ?>>
|
|
<div class="wp-playlist-next"></div>
|
|
<div class="wp-playlist-prev"></div>
|
|
<noscript>
|
|
<ol>
|
|
<?php
|
|
foreach ( $attachments as $att_id => $attachment ) {
|
|
printf( '<li>%s</li>', wp_get_attachment_link( $att_id ) );
|
|
}
|
|
?>
|
|
</ol>
|
|
</noscript>
|
|
<script type="application/json" class="wp-playlist-script"><?php echo wp_json_encode( $data ); ?></script>
|
|
</div>
|
|
<?php
|
|
return ob_get_clean();
|
|
}
|
|
add_shortcode( 'playlist', 'wp_playlist_shortcode' );
|
|
|
|
/**
|
|
* Provides a No-JS Flash fallback as a last resort for audio / video.
|
|
*
|
|
* @since 3.6.0
|
|
*
|
|
* @param string $url The media element URL.
|
|
* @return string Fallback HTML.
|
|
*/
|
|
function wp_mediaelement_fallback( $url ) {
|
|
/**
|
|
* Filters the MediaElement fallback output for no-JS.
|
|
*
|
|
* @since 3.6.0
|
|
*
|
|
* @param string $output Fallback output for no-JS.
|
|
* @param string $url Media file URL.
|
|
*/
|
|
return apply_filters( 'wp_mediaelement_fallback', sprintf( '<a href="%1$s">%1$s</a>', esc_url( $url ) ), $url );
|
|
}
|
|
|
|
/**
|
|
* Returns a filtered list of supported audio formats.
|
|
*
|
|
* @since 3.6.0
|
|
*
|
|
* @return string[] Supported audio formats.
|
|
*/
|
|
function wp_get_audio_extensions() {
|
|
/**
|
|
* Filters the list of supported audio formats.
|
|
*
|
|
* @since 3.6.0
|
|
*
|
|
* @param string[] $extensions An array of supported audio formats. Defaults are
|
|
* 'mp3', 'ogg', 'flac', 'm4a', 'wav'.
|
|
*/
|
|
return apply_filters( 'wp_audio_extensions', array( 'mp3', 'ogg', 'flac', 'm4a', 'wav' ) );
|
|
}
|
|
|
|
/**
|
|
* Returns useful keys to use to lookup data from an attachment's stored metadata.
|
|
*
|
|
* @since 3.9.0
|
|
*
|
|
* @param WP_Post $attachment The current attachment, provided for context.
|
|
* @param string $context Optional. The context. Accepts 'edit', 'display'. Default 'display'.
|
|
* @return string[] Key/value pairs of field keys to labels.
|
|
*/
|
|
function wp_get_attachment_id3_keys( $attachment, $context = 'display' ) {
|
|
$fields = array(
|
|
'artist' => __( 'Artist' ),
|
|
'album' => __( 'Album' ),
|
|
);
|
|
|
|
if ( 'display' === $context ) {
|
|
$fields['genre'] = __( 'Genre' );
|
|
$fields['year'] = __( 'Year' );
|
|
$fields['length_formatted'] = _x( 'Length', 'video or audio' );
|
|
} elseif ( 'js' === $context ) {
|
|
$fields['bitrate'] = __( 'Bitrate' );
|
|
$fields['bitrate_mode'] = __( 'Bitrate Mode' );
|
|
}
|
|
|
|
/**
|
|
* Filters the editable list of keys to look up data from an attachment's metadata.
|
|
*
|
|
* @since 3.9.0
|
|
*
|
|
* @param array $fields Key/value pairs of field keys to labels.
|
|
* @param WP_Post $attachment Attachment object.
|
|
* @param string $context The context. Accepts 'edit', 'display'. Default 'display'.
|
|
*/
|
|
return apply_filters( 'wp_get_attachment_id3_keys', $fields, $attachment, $context );
|
|
}
|
|
/**
|
|
* Builds the Audio shortcode output.
|
|
*
|
|
* This implements the functionality of the Audio Shortcode for displaying
|
|
* WordPress mp3s in a post.
|
|
*
|
|
* @since 3.6.0
|
|
*
|
|
* @param array $attr {
|
|
* Attributes of the audio shortcode.
|
|
*
|
|
* @type string $src URL to the source of the audio file. Default empty.
|
|
* @type string $loop The 'loop' attribute for the `<audio>` element. Default empty.
|
|
* @type string $autoplay The 'autoplay' attribute for the `<audio>` element. Default empty.
|
|
* @type string $preload The 'preload' attribute for the `<audio>` element. Default 'none'.
|
|
* @type string $class The 'class' attribute for the `<audio>` element. Default 'wp-audio-shortcode'.
|
|
* @type string $style The 'style' attribute for the `<audio>` element. Default 'width: 100%;'.
|
|
* }
|
|
* @param string $content Shortcode content.
|
|
* @return string|void HTML content to display audio.
|
|
*/
|
|
function wp_audio_shortcode( $attr, $content = '' ) {
|
|
$post_id = get_post() ? get_the_ID() : 0;
|
|
|
|
static $instance = 0;
|
|
++$instance;
|
|
|
|
/**
|
|
* Filters the default audio shortcode output.
|
|
*
|
|
* If the filtered output isn't empty, it will be used instead of generating the default audio template.
|
|
*
|
|
* @since 3.6.0
|
|
*
|
|
* @param string $html Empty variable to be replaced with shortcode markup.
|
|
* @param array $attr Attributes of the shortcode. See {@see wp_audio_shortcode()}.
|
|
* @param string $content Shortcode content.
|
|
* @param int $instance Unique numeric ID of this audio shortcode instance.
|
|
*/
|
|
$override = apply_filters( 'wp_audio_shortcode_override', '', $attr, $content, $instance );
|
|
|
|
if ( '' !== $override ) {
|
|
return $override;
|
|
}
|
|
|
|
$audio = null;
|
|
|
|
$default_types = wp_get_audio_extensions();
|
|
$defaults_atts = array(
|
|
'src' => '',
|
|
'loop' => '',
|
|
'autoplay' => '',
|
|
'preload' => 'none',
|
|
'class' => 'wp-audio-shortcode',
|
|
'style' => 'width: 100%;',
|
|
);
|
|
foreach ( $default_types as $type ) {
|
|
$defaults_atts[ $type ] = '';
|
|
}
|
|
|
|
$atts = shortcode_atts( $defaults_atts, $attr, 'audio' );
|
|
|
|
$primary = false;
|
|
if ( ! empty( $atts['src'] ) ) {
|
|
$type = wp_check_filetype( $atts['src'], wp_get_mime_types() );
|
|
|
|
if ( ! in_array( strtolower( $type['ext'] ), $default_types, true ) ) {
|
|
return sprintf( '<a class="wp-embedded-audio" href="%s">%s</a>', esc_url( $atts['src'] ), esc_html( $atts['src'] ) );
|
|
}
|
|
|
|
$primary = true;
|
|
array_unshift( $default_types, 'src' );
|
|
} else {
|
|
foreach ( $default_types as $ext ) {
|
|
if ( ! empty( $atts[ $ext ] ) ) {
|
|
$type = wp_check_filetype( $atts[ $ext ], wp_get_mime_types() );
|
|
|
|
if ( strtolower( $type['ext'] ) === $ext ) {
|
|
$primary = true;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if ( ! $primary ) {
|
|
$audios = get_attached_media( 'audio', $post_id );
|
|
|
|
if ( empty( $audios ) ) {
|
|
return;
|
|
}
|
|
|
|
$audio = reset( $audios );
|
|
$atts['src'] = wp_get_attachment_url( $audio->ID );
|
|
|
|
if ( empty( $atts['src'] ) ) {
|
|
return;
|
|
}
|
|
|
|
array_unshift( $default_types, 'src' );
|
|
}
|
|
|
|
/**
|
|
* Filters the media library used for the audio shortcode.
|
|
*
|
|
* @since 3.6.0
|
|
*
|
|
* @param string $library Media library used for the audio shortcode.
|
|
*/
|
|
$library = apply_filters( 'wp_audio_shortcode_library', 'mediaelement' );
|
|
|
|
if ( 'mediaelement' === $library && did_action( 'init' ) ) {
|
|
wp_enqueue_style( 'wp-mediaelement' );
|
|
wp_enqueue_script( 'wp-mediaelement' );
|
|
}
|
|
|
|
/**
|
|
* Filters the class attribute for the audio shortcode output container.
|
|
*
|
|
* @since 3.6.0
|
|
* @since 4.9.0 The `$atts` parameter was added.
|
|
*
|
|
* @param string $class CSS class or list of space-separated classes.
|
|
* @param array $atts Array of audio shortcode attributes.
|
|
*/
|
|
$atts['class'] = apply_filters( 'wp_audio_shortcode_class', $atts['class'], $atts );
|
|
|
|
$html_atts = array(
|
|
'class' => $atts['class'],
|
|
'id' => sprintf( 'audio-%d-%d', $post_id, $instance ),
|
|
'loop' => wp_validate_boolean( $atts['loop'] ),
|
|
'autoplay' => wp_validate_boolean( $atts['autoplay'] ),
|
|
'preload' => $atts['preload'],
|
|
'style' => $atts['style'],
|
|
);
|
|
|
|
// These ones should just be omitted altogether if they are blank.
|
|
foreach ( array( 'loop', 'autoplay', 'preload' ) as $a ) {
|
|
if ( empty( $html_atts[ $a ] ) ) {
|
|
unset( $html_atts[ $a ] );
|
|
}
|
|
}
|
|
|
|
$attr_strings = array();
|
|
|
|
foreach ( $html_atts as $k => $v ) {
|
|
$attr_strings[] = $k . '="' . esc_attr( $v ) . '"';
|
|
}
|
|
|
|
$html = '';
|
|
|
|
if ( 'mediaelement' === $library && 1 === $instance ) {
|
|
$html .= "<!--[if lt IE 9]><script>document.createElement('audio');</script><![endif]-->\n";
|
|
}
|
|
|
|
$html .= sprintf( '<audio %s controls="controls">', implode( ' ', $attr_strings ) );
|
|
|
|
$fileurl = '';
|
|
$source = '<source type="%s" src="%s" />';
|
|
|
|
foreach ( $default_types as $fallback ) {
|
|
if ( ! empty( $atts[ $fallback ] ) ) {
|
|
if ( empty( $fileurl ) ) {
|
|
$fileurl = $atts[ $fallback ];
|
|
}
|
|
|
|
$type = wp_check_filetype( $atts[ $fallback ], wp_get_mime_types() );
|
|
$url = add_query_arg( '_', $instance, $atts[ $fallback ] );
|
|
$html .= sprintf( $source, $type['type'], esc_url( $url ) );
|
|
}
|
|
}
|
|
|
|
if ( 'mediaelement' === $library ) {
|
|
$html .= wp_mediaelement_fallback( $fileurl );
|
|
}
|
|
|
|
$html .= '</audio>';
|
|
|
|
/**
|
|
* Filters the audio shortcode output.
|
|
*
|
|
* @since 3.6.0
|
|
*
|
|
* @param string $html Audio shortcode HTML output.
|
|
* @param array $atts Array of audio shortcode attributes.
|
|
* @param string $audio Audio file.
|
|
* @param int $post_id Post ID.
|
|
* @param string $library Media library used for the audio shortcode.
|
|
*/
|
|
return apply_filters( 'wp_audio_shortcode', $html, $atts, $audio, $post_id, $library );
|
|
}
|
|
add_shortcode( 'audio', 'wp_audio_shortcode' );
|
|
|
|
/**
|
|
* Returns a filtered list of supported video formats.
|
|
*
|
|
* @since 3.6.0
|
|
*
|
|
* @return string[] List of supported video formats.
|
|
*/
|
|
function wp_get_video_extensions() {
|
|
/**
|
|
* Filters the list of supported video formats.
|
|
*
|
|
* @since 3.6.0
|
|
*
|
|
* @param string[] $extensions An array of supported video formats. Defaults are
|
|
* 'mp4', 'm4v', 'webm', 'ogv', 'flv'.
|
|
*/
|
|
return apply_filters( 'wp_video_extensions', array( 'mp4', 'm4v', 'webm', 'ogv', 'flv' ) );
|
|
}
|
|
|
|
/**
|
|
* Builds the Video shortcode output.
|
|
*
|
|
* This implements the functionality of the Video Shortcode for displaying
|
|
* WordPress mp4s in a post.
|
|
*
|
|
* @since 3.6.0
|
|
*
|
|
* @global int $content_width
|
|
*
|
|
* @param array $attr {
|
|
* Attributes of the shortcode.
|
|
*
|
|
* @type string $src URL to the source of the video file. Default empty.
|
|
* @type int $height Height of the video embed in pixels. Default 360.
|
|
* @type int $width Width of the video embed in pixels. Default $content_width or 640.
|
|
* @type string $poster The 'poster' attribute for the `<video>` element. Default empty.
|
|
* @type string $loop The 'loop' attribute for the `<video>` element. Default empty.
|
|
* @type string $autoplay The 'autoplay' attribute for the `<video>` element. Default empty.
|
|
* @type string $muted The 'muted' attribute for the `<video>` element. Default false.
|
|
* @type string $preload The 'preload' attribute for the `<video>` element.
|
|
* Default 'metadata'.
|
|
* @type string $class The 'class' attribute for the `<video>` element.
|
|
* Default 'wp-video-shortcode'.
|
|
* }
|
|
* @param string $content Shortcode content.
|
|
* @return string|void HTML content to display video.
|
|
*/
|
|
function wp_video_shortcode( $attr, $content = '' ) {
|
|
global $content_width;
|
|
$post_id = get_post() ? get_the_ID() : 0;
|
|
|
|
static $instance = 0;
|
|
++$instance;
|
|
|
|
/**
|
|
* Filters the default video shortcode output.
|
|
*
|
|
* If the filtered output isn't empty, it will be used instead of generating
|
|
* the default video template.
|
|
*
|
|
* @since 3.6.0
|
|
*
|
|
* @see wp_video_shortcode()
|
|
*
|
|
* @param string $html Empty variable to be replaced with shortcode markup.
|
|
* @param array $attr Attributes of the shortcode. See {@see wp_video_shortcode()}.
|
|
* @param string $content Video shortcode content.
|
|
* @param int $instance Unique numeric ID of this video shortcode instance.
|
|
*/
|
|
$override = apply_filters( 'wp_video_shortcode_override', '', $attr, $content, $instance );
|
|
|
|
if ( '' !== $override ) {
|
|
return $override;
|
|
}
|
|
|
|
$video = null;
|
|
|
|
$default_types = wp_get_video_extensions();
|
|
$defaults_atts = array(
|
|
'src' => '',
|
|
'poster' => '',
|
|
'loop' => '',
|
|
'autoplay' => '',
|
|
'muted' => 'false',
|
|
'preload' => 'metadata',
|
|
'width' => 640,
|
|
'height' => 360,
|
|
'class' => 'wp-video-shortcode',
|
|
);
|
|
|
|
foreach ( $default_types as $type ) {
|
|
$defaults_atts[ $type ] = '';
|
|
}
|
|
|
|
$atts = shortcode_atts( $defaults_atts, $attr, 'video' );
|
|
|
|
if ( is_admin() ) {
|
|
// Shrink the video so it isn't huge in the admin.
|
|
if ( $atts['width'] > $defaults_atts['width'] ) {
|
|
$atts['height'] = round( ( $atts['height'] * $defaults_atts['width'] ) / $atts['width'] );
|
|
$atts['width'] = $defaults_atts['width'];
|
|
}
|
|
} else {
|
|
// If the video is bigger than the theme.
|
|
if ( ! empty( $content_width ) && $atts['width'] > $content_width ) {
|
|
$atts['height'] = round( ( $atts['height'] * $content_width ) / $atts['width'] );
|
|
$atts['width'] = $content_width;
|
|
}
|
|
}
|
|
|
|
$is_vimeo = false;
|
|
$is_youtube = false;
|
|
$yt_pattern = '#^https?://(?:www\.)?(?:youtube\.com/watch|youtu\.be/)#';
|
|
$vimeo_pattern = '#^https?://(.+\.)?vimeo\.com/.*#';
|
|
|
|
$primary = false;
|
|
if ( ! empty( $atts['src'] ) ) {
|
|
$is_vimeo = ( preg_match( $vimeo_pattern, $atts['src'] ) );
|
|
$is_youtube = ( preg_match( $yt_pattern, $atts['src'] ) );
|
|
|
|
if ( ! $is_youtube && ! $is_vimeo ) {
|
|
$type = wp_check_filetype( $atts['src'], wp_get_mime_types() );
|
|
|
|
if ( ! in_array( strtolower( $type['ext'] ), $default_types, true ) ) {
|
|
return sprintf( '<a class="wp-embedded-video" href="%s">%s</a>', esc_url( $atts['src'] ), esc_html( $atts['src'] ) );
|
|
}
|
|
}
|
|
|
|
if ( $is_vimeo ) {
|
|
wp_enqueue_script( 'mediaelement-vimeo' );
|
|
}
|
|
|
|
$primary = true;
|
|
array_unshift( $default_types, 'src' );
|
|
} else {
|
|
foreach ( $default_types as $ext ) {
|
|
if ( ! empty( $atts[ $ext ] ) ) {
|
|
$type = wp_check_filetype( $atts[ $ext ], wp_get_mime_types() );
|
|
if ( strtolower( $type['ext'] ) === $ext ) {
|
|
$primary = true;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if ( ! $primary ) {
|
|
$videos = get_attached_media( 'video', $post_id );
|
|
if ( empty( $videos ) ) {
|
|
return;
|
|
}
|
|
|
|
$video = reset( $videos );
|
|
$atts['src'] = wp_get_attachment_url( $video->ID );
|
|
if ( empty( $atts['src'] ) ) {
|
|
return;
|
|
}
|
|
|
|
array_unshift( $default_types, 'src' );
|
|
}
|
|
|
|
/**
|
|
* Filters the media library used for the video shortcode.
|
|
*
|
|
* @since 3.6.0
|
|
*
|
|
* @param string $library Media library used for the video shortcode.
|
|
*/
|
|
$library = apply_filters( 'wp_video_shortcode_library', 'mediaelement' );
|
|
if ( 'mediaelement' === $library && did_action( 'init' ) ) {
|
|
wp_enqueue_style( 'wp-mediaelement' );
|
|
wp_enqueue_script( 'wp-mediaelement' );
|
|
wp_enqueue_script( 'mediaelement-vimeo' );
|
|
}
|
|
|
|
/*
|
|
* MediaElement.js has issues with some URL formats for Vimeo and YouTube,
|
|
* so update the URL to prevent the ME.js player from breaking.
|
|
*/
|
|
if ( 'mediaelement' === $library ) {
|
|
if ( $is_youtube ) {
|
|
// Remove `feature` query arg and force SSL - see #40866.
|
|
$atts['src'] = remove_query_arg( 'feature', $atts['src'] );
|
|
$atts['src'] = set_url_scheme( $atts['src'], 'https' );
|
|
} elseif ( $is_vimeo ) {
|
|
// Remove all query arguments and force SSL - see #40866.
|
|
$parsed_vimeo_url = wp_parse_url( $atts['src'] );
|
|
$vimeo_src = 'https://' . $parsed_vimeo_url['host'] . $parsed_vimeo_url['path'];
|
|
|
|
// Add loop param for mejs bug - see #40977, not needed after #39686.
|
|
$loop = $atts['loop'] ? '1' : '0';
|
|
$atts['src'] = add_query_arg( 'loop', $loop, $vimeo_src );
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Filters the class attribute for the video shortcode output container.
|
|
*
|
|
* @since 3.6.0
|
|
* @since 4.9.0 The `$atts` parameter was added.
|
|
*
|
|
* @param string $class CSS class or list of space-separated classes.
|
|
* @param array $atts Array of video shortcode attributes.
|
|
*/
|
|
$atts['class'] = apply_filters( 'wp_video_shortcode_class', $atts['class'], $atts );
|
|
|
|
$html_atts = array(
|
|
'class' => $atts['class'],
|
|
'id' => sprintf( 'video-%d-%d', $post_id, $instance ),
|
|
'width' => absint( $atts['width'] ),
|
|
'height' => absint( $atts['height'] ),
|
|
'poster' => esc_url( $atts['poster'] ),
|
|
'loop' => wp_validate_boolean( $atts['loop'] ),
|
|
'autoplay' => wp_validate_boolean( $atts['autoplay'] ),
|
|
'muted' => wp_validate_boolean( $atts['muted'] ),
|
|
'preload' => $atts['preload'],
|
|
);
|
|
|
|
// These ones should just be omitted altogether if they are blank.
|
|
foreach ( array( 'poster', 'loop', 'autoplay', 'preload', 'muted' ) as $a ) {
|
|
if ( empty( $html_atts[ $a ] ) ) {
|
|
unset( $html_atts[ $a ] );
|
|
}
|
|
}
|
|
|
|
$attr_strings = array();
|
|
foreach ( $html_atts as $k => $v ) {
|
|
$attr_strings[] = $k . '="' . esc_attr( $v ) . '"';
|
|
}
|
|
|
|
$html = '';
|
|
|
|
if ( 'mediaelement' === $library && 1 === $instance ) {
|
|
$html .= "<!--[if lt IE 9]><script>document.createElement('video');</script><![endif]-->\n";
|
|
}
|
|
|
|
$html .= sprintf( '<video %s controls="controls">', implode( ' ', $attr_strings ) );
|
|
|
|
$fileurl = '';
|
|
$source = '<source type="%s" src="%s" />';
|
|
|
|
foreach ( $default_types as $fallback ) {
|
|
if ( ! empty( $atts[ $fallback ] ) ) {
|
|
if ( empty( $fileurl ) ) {
|
|
$fileurl = $atts[ $fallback ];
|
|
}
|
|
if ( 'src' === $fallback && $is_youtube ) {
|
|
$type = array( 'type' => 'video/youtube' );
|
|
} elseif ( 'src' === $fallback && $is_vimeo ) {
|
|
$type = array( 'type' => 'video/vimeo' );
|
|
} else {
|
|
$type = wp_check_filetype( $atts[ $fallback ], wp_get_mime_types() );
|
|
}
|
|
$url = add_query_arg( '_', $instance, $atts[ $fallback ] );
|
|
$html .= sprintf( $source, $type['type'], esc_url( $url ) );
|
|
}
|
|
}
|
|
|
|
if ( ! empty( $content ) ) {
|
|
if ( str_contains( $content, "\n" ) ) {
|
|
$content = str_replace( array( "\r\n", "\n", "\t" ), '', $content );
|
|
}
|
|
$html .= trim( $content );
|
|
}
|
|
|
|
if ( 'mediaelement' === $library ) {
|
|
$html .= wp_mediaelement_fallback( $fileurl );
|
|
}
|
|
$html .= '</video>';
|
|
|
|
$width_rule = '';
|
|
if ( ! empty( $atts['width'] ) ) {
|
|
$width_rule = sprintf( 'width: %dpx;', $atts['width'] );
|
|
}
|
|
$output = sprintf( '<div style="%s" class="wp-video">%s</div>', $width_rule, $html );
|
|
|
|
/**
|
|
* Filters the output of the video shortcode.
|
|
*
|
|
* @since 3.6.0
|
|
*
|
|
* @param string $output Video shortcode HTML output.
|
|
* @param array $atts Array of video shortcode attributes.
|
|
* @param string $video Video file.
|
|
* @param int $post_id Post ID.
|
|
* @param string $library Media library used for the video shortcode.
|
|
*/
|
|
return apply_filters( 'wp_video_shortcode', $output, $atts, $video, $post_id, $library );
|
|
}
|
|
add_shortcode( 'video', 'wp_video_shortcode' );
|
|
|
|
/**
|
|
* Gets the previous image link that has the same post parent.
|
|
*
|
|
* @since 5.8.0
|
|
*
|
|
* @see get_adjacent_image_link()
|
|
*
|
|
* @param string|int[] $size Optional. Image size. Accepts any registered image size name, or an array
|
|
* of width and height values in pixels (in that order). Default 'thumbnail'.
|
|
* @param string|false $text Optional. Link text. Default false.
|
|
* @return string Markup for previous image link.
|
|
*/
|
|
function get_previous_image_link( $size = 'thumbnail', $text = false ) {
|
|
return get_adjacent_image_link( true, $size, $text );
|
|
}
|
|
|
|
/**
|
|
* Displays previous image link that has the same post parent.
|
|
*
|
|
* @since 2.5.0
|
|
*
|
|
* @param string|int[] $size Optional. Image size. Accepts any registered image size name, or an array
|
|
* of width and height values in pixels (in that order). Default 'thumbnail'.
|
|
* @param string|false $text Optional. Link text. Default false.
|
|
*/
|
|
function previous_image_link( $size = 'thumbnail', $text = false ) {
|
|
echo get_previous_image_link( $size, $text );
|
|
}
|
|
|
|
/**
|
|
* Gets the next image link that has the same post parent.
|
|
*
|
|
* @since 5.8.0
|
|
*
|
|
* @see get_adjacent_image_link()
|
|
*
|
|
* @param string|int[] $size Optional. Image size. Accepts any registered image size name, or an array
|
|
* of width and height values in pixels (in that order). Default 'thumbnail'.
|
|
* @param string|false $text Optional. Link text. Default false.
|
|
* @return string Markup for next image link.
|
|
*/
|
|
function get_next_image_link( $size = 'thumbnail', $text = false ) {
|
|
return get_adjacent_image_link( false, $size, $text );
|
|
}
|
|
|
|
/**
|
|
* Displays next image link that has the same post parent.
|
|
*
|
|
* @since 2.5.0
|
|
*
|
|
* @param string|int[] $size Optional. Image size. Accepts any registered image size name, or an array
|
|
* of width and height values in pixels (in that order). Default 'thumbnail'.
|
|
* @param string|false $text Optional. Link text. Default false.
|
|
*/
|
|
function next_image_link( $size = 'thumbnail', $text = false ) {
|
|
echo get_next_image_link( $size, $text );
|
|
}
|
|
|
|
/**
|
|
* Gets the next or previous image link that has the same post parent.
|
|
*
|
|
* Retrieves the current attachment object from the $post global.
|
|
*
|
|
* @since 5.8.0
|
|
*
|
|
* @param bool $prev Optional. Whether to display the next (false) or previous (true) link. Default true.
|
|
* @param string|int[] $size Optional. Image size. Accepts any registered image size name, or an array
|
|
* of width and height values in pixels (in that order). Default 'thumbnail'.
|
|
* @param bool $text Optional. Link text. Default false.
|
|
* @return string Markup for image link.
|
|
*/
|
|
function get_adjacent_image_link( $prev = true, $size = 'thumbnail', $text = false ) {
|
|
$post = get_post();
|
|
$attachments = array_values(
|
|
get_children(
|
|
array(
|
|
'post_parent' => $post->post_parent,
|
|
'post_status' => 'inherit',
|
|
'post_type' => 'attachment',
|
|
'post_mime_type' => 'image',
|
|
'order' => 'ASC',
|
|
'orderby' => 'menu_order ID',
|
|
)
|
|
)
|
|
);
|
|
|
|
foreach ( $attachments as $k => $attachment ) {
|
|
if ( (int) $attachment->ID === (int) $post->ID ) {
|
|
break;
|
|
}
|
|
}
|
|
|
|
$output = '';
|
|
$attachment_id = 0;
|
|
|
|
if ( $attachments ) {
|
|
$k = $prev ? $k - 1 : $k + 1;
|
|
|
|
if ( isset( $attachments[ $k ] ) ) {
|
|
$attachment_id = $attachments[ $k ]->ID;
|
|
$attr = array( 'alt' => get_the_title( $attachment_id ) );
|
|
$output = wp_get_attachment_link( $attachment_id, $size, true, false, $text, $attr );
|
|
}
|
|
}
|
|
|
|
$adjacent = $prev ? 'previous' : 'next';
|
|
|
|
/**
|
|
* Filters the adjacent image link.
|
|
*
|
|
* The dynamic portion of the hook name, `$adjacent`, refers to the type of adjacency,
|
|
* either 'next', or 'previous'.
|
|
*
|
|
* Possible hook names include:
|
|
*
|
|
* - `next_image_link`
|
|
* - `previous_image_link`
|
|
*
|
|
* @since 3.5.0
|
|
*
|
|
* @param string $output Adjacent image HTML markup.
|
|
* @param int $attachment_id Attachment ID
|
|
* @param string|int[] $size Requested image size. Can be any registered image size name, or
|
|
* an array of width and height values in pixels (in that order).
|
|
* @param string $text Link text.
|
|
*/
|
|
return apply_filters( "{$adjacent}_image_link", $output, $attachment_id, $size, $text );
|
|
}
|
|
|
|
/**
|
|
* Displays next or previous image link that has the same post parent.
|
|
*
|
|
* Retrieves the current attachment object from the $post global.
|
|
*
|
|
* @since 2.5.0
|
|
*
|
|
* @param bool $prev Optional. Whether to display the next (false) or previous (true) link. Default true.
|
|
* @param string|int[] $size Optional. Image size. Accepts any registered image size name, or an array
|
|
* of width and height values in pixels (in that order). Default 'thumbnail'.
|
|
* @param bool $text Optional. Link text. Default false.
|
|
*/
|
|
function adjacent_image_link( $prev = true, $size = 'thumbnail', $text = false ) {
|
|
echo get_adjacent_image_link( $prev, $size, $text );
|
|
}
|
|
|
|
/**
|
|
* Retrieves taxonomies attached to given the attachment.
|
|
*
|
|
* @since 2.5.0
|
|
* @since 4.7.0 Introduced the `$output` parameter.
|
|
*
|
|
* @param int|array|object $attachment Attachment ID, data array, or data object.
|
|
* @param string $output Output type. 'names' to return an array of taxonomy names,
|
|
* or 'objects' to return an array of taxonomy objects.
|
|
* Default is 'names'.
|
|
* @return string[]|WP_Taxonomy[] List of taxonomies or taxonomy names. Empty array on failure.
|
|
*/
|
|
function get_attachment_taxonomies( $attachment, $output = 'names' ) {
|
|
if ( is_int( $attachment ) ) {
|
|
$attachment = get_post( $attachment );
|
|
} elseif ( is_array( $attachment ) ) {
|
|
$attachment = (object) $attachment;
|
|
}
|
|
|
|
if ( ! is_object( $attachment ) ) {
|
|
return array();
|
|
}
|
|
|
|
$file = get_attached_file( $attachment->ID );
|
|
$filename = wp_basename( $file );
|
|
|
|
$objects = array( 'attachment' );
|
|
|
|
if ( str_contains( $filename, '.' ) ) {
|
|
$objects[] = 'attachment:' . substr( $filename, strrpos( $filename, '.' ) + 1 );
|
|
}
|
|
|
|
if ( ! empty( $attachment->post_mime_type ) ) {
|
|
$objects[] = 'attachment:' . $attachment->post_mime_type;
|
|
|
|
if ( str_contains( $attachment->post_mime_type, '/' ) ) {
|
|
foreach ( explode( '/', $attachment->post_mime_type ) as $token ) {
|
|
if ( ! empty( $token ) ) {
|
|
$objects[] = "attachment:$token";
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
$taxonomies = array();
|
|
|
|
foreach ( $objects as $object ) {
|
|
$taxes = get_object_taxonomies( $object, $output );
|
|
|
|
if ( $taxes ) {
|
|
$taxonomies = array_merge( $taxonomies, $taxes );
|
|
}
|
|
}
|
|
|
|
if ( 'names' === $output ) {
|
|
$taxonomies = array_unique( $taxonomies );
|
|
}
|
|
|
|
return $taxonomies;
|
|
}
|
|
|
|
/**
|
|
* Retrieves all of the taxonomies that are registered for attachments.
|
|
*
|
|
* Handles mime-type-specific taxonomies such as attachment:image and attachment:video.
|
|
*
|
|
* @since 3.5.0
|
|
*
|
|
* @see get_taxonomies()
|
|
*
|
|
* @param string $output Optional. The type of taxonomy output to return. Accepts 'names' or 'objects'.
|
|
* Default 'names'.
|
|
* @return string[]|WP_Taxonomy[] Array of names or objects of registered taxonomies for attachments.
|
|
*/
|
|
function get_taxonomies_for_attachments( $output = 'names' ) {
|
|
$taxonomies = array();
|
|
|
|
foreach ( get_taxonomies( array(), 'objects' ) as $taxonomy ) {
|
|
foreach ( $taxonomy->object_type as $object_type ) {
|
|
if ( 'attachment' === $object_type || str_starts_with( $object_type, 'attachment:' ) ) {
|
|
if ( 'names' === $output ) {
|
|
$taxonomies[] = $taxonomy->name;
|
|
} else {
|
|
$taxonomies[ $taxonomy->name ] = $taxonomy;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
return $taxonomies;
|
|
}
|
|
|
|
/**
|
|
* Determines whether the value is an acceptable type for GD image functions.
|
|
*
|
|
* In PHP 8.0, the GD extension uses GdImage objects for its data structures.
|
|
* This function checks if the passed value is either a GdImage object instance
|
|
* or a resource of type `gd`. Any other type will return false.
|
|
*
|
|
* @since 5.6.0
|
|
*
|
|
* @param resource|GdImage|false $image A value to check the type for.
|
|
* @return bool True if `$image` is either a GD image resource or a GdImage instance,
|
|
* false otherwise.
|
|
*/
|
|
function is_gd_image( $image ) {
|
|
if ( $image instanceof GdImage
|
|
|| is_resource( $image ) && 'gd' === get_resource_type( $image )
|
|
) {
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Creates a new GD image resource with transparency support.
|
|
*
|
|
* @todo Deprecate if possible.
|
|
*
|
|
* @since 2.9.0
|
|
*
|
|
* @param int $width Image width in pixels.
|
|
* @param int $height Image height in pixels.
|
|
* @return resource|GdImage|false The GD image resource or GdImage instance on success.
|
|
* False on failure.
|
|
*/
|
|
function wp_imagecreatetruecolor( $width, $height ) {
|
|
$img = imagecreatetruecolor( $width, $height );
|
|
|
|
if ( is_gd_image( $img )
|
|
&& function_exists( 'imagealphablending' ) && function_exists( 'imagesavealpha' )
|
|
) {
|
|
imagealphablending( $img, false );
|
|
imagesavealpha( $img, true );
|
|
}
|
|
|
|
return $img;
|
|
}
|
|
|
|
/**
|
|
* Based on a supplied width/height example, returns the biggest possible dimensions based on the max width/height.
|
|
*
|
|
* @since 2.9.0
|
|
*
|
|
* @see wp_constrain_dimensions()
|
|
*
|
|
* @param int $example_width The width of an example embed.
|
|
* @param int $example_height The height of an example embed.
|
|
* @param int $max_width The maximum allowed width.
|
|
* @param int $max_height The maximum allowed height.
|
|
* @return int[] {
|
|
* An array of maximum width and height values.
|
|
*
|
|
* @type int $0 The maximum width in pixels.
|
|
* @type int $1 The maximum height in pixels.
|
|
* }
|
|
*/
|
|
function wp_expand_dimensions( $example_width, $example_height, $max_width, $max_height ) {
|
|
$example_width = (int) $example_width;
|
|
$example_height = (int) $example_height;
|
|
$max_width = (int) $max_width;
|
|
$max_height = (int) $max_height;
|
|
|
|
return wp_constrain_dimensions( $example_width * 1000000, $example_height * 1000000, $max_width, $max_height );
|
|
}
|
|
|
|
/**
|
|
* Determines the maximum upload size allowed in php.ini.
|
|
*
|
|
* @since 2.5.0
|
|
*
|
|
* @return int Allowed upload size.
|
|
*/
|
|
function wp_max_upload_size() {
|
|
$u_bytes = wp_convert_hr_to_bytes( ini_get( 'upload_max_filesize' ) );
|
|
$p_bytes = wp_convert_hr_to_bytes( ini_get( 'post_max_size' ) );
|
|
|
|
/**
|
|
* Filters the maximum upload size allowed in php.ini.
|
|
*
|
|
* @since 2.5.0
|
|
*
|
|
* @param int $size Max upload size limit in bytes.
|
|
* @param int $u_bytes Maximum upload filesize in bytes.
|
|
* @param int $p_bytes Maximum size of POST data in bytes.
|
|
*/
|
|
return apply_filters( 'upload_size_limit', min( $u_bytes, $p_bytes ), $u_bytes, $p_bytes );
|
|
}
|
|
|
|
/**
|
|
* Returns a WP_Image_Editor instance and loads file into it.
|
|
*
|
|
* @since 3.5.0
|
|
*
|
|
* @param string $path Path to the file to load.
|
|
* @param array $args Optional. Additional arguments for retrieving the image editor.
|
|
* Default empty array.
|
|
* @return WP_Image_Editor|WP_Error The WP_Image_Editor object on success,
|
|
* a WP_Error object otherwise.
|
|
*/
|
|
function wp_get_image_editor( $path, $args = array() ) {
|
|
$args['path'] = $path;
|
|
|
|
// If the mime type is not set in args, try to extract and set it from the file.
|
|
if ( ! isset( $args['mime_type'] ) ) {
|
|
$file_info = wp_check_filetype( $args['path'] );
|
|
|
|
/*
|
|
* If $file_info['type'] is false, then we let the editor attempt to
|
|
* figure out the file type, rather than forcing a failure based on extension.
|
|
*/
|
|
if ( isset( $file_info ) && $file_info['type'] ) {
|
|
$args['mime_type'] = $file_info['type'];
|
|
}
|
|
}
|
|
|
|
// Check and set the output mime type mapped to the input type.
|
|
if ( isset( $args['mime_type'] ) ) {
|
|
/** This filter is documented in wp-includes/class-wp-image-editor.php */
|
|
$output_format = apply_filters( 'image_editor_output_format', array(), $path, $args['mime_type'] );
|
|
if ( isset( $output_format[ $args['mime_type'] ] ) ) {
|
|
$args['output_mime_type'] = $output_format[ $args['mime_type'] ];
|
|
}
|
|
}
|
|
|
|
$implementation = _wp_image_editor_choose( $args );
|
|
|
|
if ( $implementation ) {
|
|
$editor = new $implementation( $path );
|
|
$loaded = $editor->load();
|
|
|
|
if ( is_wp_error( $loaded ) ) {
|
|
return $loaded;
|
|
}
|
|
|
|
return $editor;
|
|
}
|
|
|
|
return new WP_Error( 'image_no_editor', __( 'No editor could be selected.' ) );
|
|
}
|
|
|
|
/**
|
|
* Tests whether there is an editor that supports a given mime type or methods.
|
|
*
|
|
* @since 3.5.0
|
|
*
|
|
* @param string|array $args Optional. Array of arguments to retrieve the image editor supports.
|
|
* Default empty array.
|
|
* @return bool True if an eligible editor is found; false otherwise.
|
|
*/
|
|
function wp_image_editor_supports( $args = array() ) {
|
|
return (bool) _wp_image_editor_choose( $args );
|
|
}
|
|
|
|
/**
|
|
* Tests which editors are capable of supporting the request.
|
|
*
|
|
* @ignore
|
|
* @since 3.5.0
|
|
*
|
|
* @param array $args Optional. Array of arguments for choosing a capable editor. Default empty array.
|
|
* @return string|false Class name for the first editor that claims to support the request.
|
|
* False if no editor claims to support the request.
|
|
*/
|
|
function _wp_image_editor_choose( $args = array() ) {
|
|
require_once ABSPATH . WPINC . '/class-wp-image-editor.php';
|
|
require_once ABSPATH . WPINC . '/class-wp-image-editor-gd.php';
|
|
require_once ABSPATH . WPINC . '/class-wp-image-editor-imagick.php';
|
|
require_once ABSPATH . WPINC . '/class-avif-info.php';
|
|
/**
|
|
* Filters the list of image editing library classes.
|
|
*
|
|
* @since 3.5.0
|
|
*
|
|
* @param string[] $image_editors Array of available image editor class names. Defaults are
|
|
* 'WP_Image_Editor_Imagick', 'WP_Image_Editor_GD'.
|
|
*/
|
|
$implementations = apply_filters( 'wp_image_editors', array( 'WP_Image_Editor_Imagick', 'WP_Image_Editor_GD' ) );
|
|
$supports_input = false;
|
|
|
|
foreach ( $implementations as $implementation ) {
|
|
if ( ! call_user_func( array( $implementation, 'test' ), $args ) ) {
|
|
continue;
|
|
}
|
|
|
|
// Implementation should support the passed mime type.
|
|
if ( isset( $args['mime_type'] ) &&
|
|
! call_user_func(
|
|
array( $implementation, 'supports_mime_type' ),
|
|
$args['mime_type']
|
|
) ) {
|
|
continue;
|
|
}
|
|
|
|
// Implementation should support requested methods.
|
|
if ( isset( $args['methods'] ) &&
|
|
array_diff( $args['methods'], get_class_methods( $implementation ) ) ) {
|
|
|
|
continue;
|
|
}
|
|
|
|
// Implementation should ideally support the output mime type as well if set and different than the passed type.
|
|
if (
|
|
isset( $args['mime_type'] ) &&
|
|
isset( $args['output_mime_type'] ) &&
|
|
$args['mime_type'] !== $args['output_mime_type'] &&
|
|
! call_user_func( array( $implementation, 'supports_mime_type' ), $args['output_mime_type'] )
|
|
) {
|
|
/*
|
|
* This implementation supports the input type but not the output type.
|
|
* Keep looking to see if we can find an implementation that supports both.
|
|
*/
|
|
$supports_input = $implementation;
|
|
continue;
|
|
}
|
|
|
|
// Favor the implementation that supports both input and output mime types.
|
|
return $implementation;
|
|
}
|
|
|
|
return $supports_input;
|
|
}
|
|
|
|
/**
|
|
* Prints default Plupload arguments.
|
|
*
|
|
* @since 3.4.0
|
|
*/
|
|
function wp_plupload_default_settings() {
|
|
$wp_scripts = wp_scripts();
|
|
|
|
$data = $wp_scripts->get_data( 'wp-plupload', 'data' );
|
|
if ( $data && str_contains( $data, '_wpPluploadSettings' ) ) {
|
|
return;
|
|
}
|
|
|
|
$max_upload_size = wp_max_upload_size();
|
|
$allowed_extensions = array_keys( get_allowed_mime_types() );
|
|
$extensions = array();
|
|
foreach ( $allowed_extensions as $extension ) {
|
|
$extensions = array_merge( $extensions, explode( '|', $extension ) );
|
|
}
|
|
|
|
/*
|
|
* Since 4.9 the `runtimes` setting is hardcoded in our version of Plupload to `html5,html4`,
|
|
* and the `flash_swf_url` and `silverlight_xap_url` are not used.
|
|
*/
|
|
$defaults = array(
|
|
'file_data_name' => 'async-upload', // Key passed to $_FILE.
|
|
'url' => admin_url( 'async-upload.php', 'relative' ),
|
|
'filters' => array(
|
|
'max_file_size' => $max_upload_size . 'b',
|
|
'mime_types' => array( array( 'extensions' => implode( ',', $extensions ) ) ),
|
|
),
|
|
);
|
|
|
|
/*
|
|
* Currently only iOS Safari supports multiple files uploading,
|
|
* but iOS 7.x has a bug that prevents uploading of videos when enabled.
|
|
* See #29602.
|
|
*/
|
|
if ( wp_is_mobile()
|
|
&& str_contains( $_SERVER['HTTP_USER_AGENT'], 'OS 7_' )
|
|
&& str_contains( $_SERVER['HTTP_USER_AGENT'], 'like Mac OS X' )
|
|
) {
|
|
$defaults['multi_selection'] = false;
|
|
}
|
|
|
|
// Check if WebP images can be edited.
|
|
if ( ! wp_image_editor_supports( array( 'mime_type' => 'image/webp' ) ) ) {
|
|
$defaults['webp_upload_error'] = true;
|
|
}
|
|
|
|
// Check if AVIF images can be edited.
|
|
if ( ! wp_image_editor_supports( array( 'mime_type' => 'image/avif' ) ) ) {
|
|
$defaults['avif_upload_error'] = true;
|
|
}
|
|
|
|
/**
|
|
* Filters the Plupload default settings.
|
|
*
|
|
* @since 3.4.0
|
|
*
|
|
* @param array $defaults Default Plupload settings array.
|
|
*/
|
|
$defaults = apply_filters( 'plupload_default_settings', $defaults );
|
|
|
|
$params = array(
|
|
'action' => 'upload-attachment',
|
|
);
|
|
|
|
/**
|
|
* Filters the Plupload default parameters.
|
|
*
|
|
* @since 3.4.0
|
|
*
|
|
* @param array $params Default Plupload parameters array.
|
|
*/
|
|
$params = apply_filters( 'plupload_default_params', $params );
|
|
|
|
$params['_wpnonce'] = wp_create_nonce( 'media-form' );
|
|
|
|
$defaults['multipart_params'] = $params;
|
|
|
|
$settings = array(
|
|
'defaults' => $defaults,
|
|
'browser' => array(
|
|
'mobile' => wp_is_mobile(),
|
|
'supported' => _device_can_upload(),
|
|
),
|
|
'limitExceeded' => is_multisite() && ! is_upload_space_available(),
|
|
);
|
|
|
|
$script = 'var _wpPluploadSettings = ' . wp_json_encode( $settings ) . ';';
|
|
|
|
if ( $data ) {
|
|
$script = "$data\n$script";
|
|
}
|
|
|
|
$wp_scripts->add_data( 'wp-plupload', 'data', $script );
|
|
}
|
|
|
|
/**
|
|
* Prepares an attachment post object for JS, where it is expected
|
|
* to be JSON-encoded and fit into an Attachment model.
|
|
*
|
|
* @since 3.5.0
|
|
*
|
|
* @param int|WP_Post $attachment Attachment ID or object.
|
|
* @return array|void {
|
|
* Array of attachment details, or void if the parameter does not correspond to an attachment.
|
|
*
|
|
* @type string $alt Alt text of the attachment.
|
|
* @type string $author ID of the attachment author, as a string.
|
|
* @type string $authorName Name of the attachment author.
|
|
* @type string $caption Caption for the attachment.
|
|
* @type array $compat Containing item and meta.
|
|
* @type string $context Context, whether it's used as the site icon for example.
|
|
* @type int $date Uploaded date, timestamp in milliseconds.
|
|
* @type string $dateFormatted Formatted date (e.g. June 29, 2018).
|
|
* @type string $description Description of the attachment.
|
|
* @type string $editLink URL to the edit page for the attachment.
|
|
* @type string $filename File name of the attachment.
|
|
* @type string $filesizeHumanReadable Filesize of the attachment in human readable format (e.g. 1 MB).
|
|
* @type int $filesizeInBytes Filesize of the attachment in bytes.
|
|
* @type int $height If the attachment is an image, represents the height of the image in pixels.
|
|
* @type string $icon Icon URL of the attachment (e.g. /wp-includes/images/media/archive.png).
|
|
* @type int $id ID of the attachment.
|
|
* @type string $link URL to the attachment.
|
|
* @type int $menuOrder Menu order of the attachment post.
|
|
* @type array $meta Meta data for the attachment.
|
|
* @type string $mime Mime type of the attachment (e.g. image/jpeg or application/zip).
|
|
* @type int $modified Last modified, timestamp in milliseconds.
|
|
* @type string $name Name, same as title of the attachment.
|
|
* @type array $nonces Nonces for update, delete and edit.
|
|
* @type string $orientation If the attachment is an image, represents the image orientation
|
|
* (landscape or portrait).
|
|
* @type array $sizes If the attachment is an image, contains an array of arrays
|
|
* for the images sizes: thumbnail, medium, large, and full.
|
|
* @type string $status Post status of the attachment (usually 'inherit').
|
|
* @type string $subtype Mime subtype of the attachment (usually the last part, e.g. jpeg or zip).
|
|
* @type string $title Title of the attachment (usually slugified file name without the extension).
|
|
* @type string $type Type of the attachment (usually first part of the mime type, e.g. image).
|
|
* @type int $uploadedTo Parent post to which the attachment was uploaded.
|
|
* @type string $uploadedToLink URL to the edit page of the parent post of the attachment.
|
|
* @type string $uploadedToTitle Post title of the parent of the attachment.
|
|
* @type string $url Direct URL to the attachment file (from wp-content).
|
|
* @type int $width If the attachment is an image, represents the width of the image in pixels.
|
|
* }
|
|
*
|
|
*/
|
|
function wp_prepare_attachment_for_js( $attachment ) {
|
|
$attachment = get_post( $attachment );
|
|
|
|
if ( ! $attachment ) {
|
|
return;
|
|
}
|
|
|
|
if ( 'attachment' !== $attachment->post_type ) {
|
|
return;
|
|
}
|
|
|
|
$meta = wp_get_attachment_metadata( $attachment->ID );
|
|
if ( str_contains( $attachment->post_mime_type, '/' ) ) {
|
|
list( $type, $subtype ) = explode( '/', $attachment->post_mime_type );
|
|
} else {
|
|
list( $type, $subtype ) = array( $attachment->post_mime_type, '' );
|
|
}
|
|
|
|
$attachment_url = wp_get_attachment_url( $attachment->ID );
|
|
$base_url = str_replace( wp_basename( $attachment_url ), '', $attachment_url );
|
|
|
|
$response = array(
|
|
'id' => $attachment->ID,
|
|
'title' => $attachment->post_title,
|
|
'filename' => wp_basename( get_attached_file( $attachment->ID ) ),
|
|
'url' => $attachment_url,
|
|
'link' => get_attachment_link( $attachment->ID ),
|
|
'alt' => get_post_meta( $attachment->ID, '_wp_attachment_image_alt', true ),
|
|
'author' => $attachment->post_author,
|
|
'description' => $attachment->post_content,
|
|
'caption' => $attachment->post_excerpt,
|
|
'name' => $attachment->post_name,
|
|
'status' => $attachment->post_status,
|
|
'uploadedTo' => $attachment->post_parent,
|
|
'date' => strtotime( $attachment->post_date_gmt ) * 1000,
|
|
'modified' => strtotime( $attachment->post_modified_gmt ) * 1000,
|
|
'menuOrder' => $attachment->menu_order,
|
|
'mime' => $attachment->post_mime_type,
|
|
'type' => $type,
|
|
'subtype' => $subtype,
|
|
'icon' => wp_mime_type_icon( $attachment->ID, '.svg' ),
|
|
'dateFormatted' => mysql2date( __( 'F j, Y' ), $attachment->post_date ),
|
|
'nonces' => array(
|
|
'update' => false,
|
|
'delete' => false,
|
|
'edit' => false,
|
|
),
|
|
'editLink' => false,
|
|
'meta' => false,
|
|
);
|
|
|
|
$author = new WP_User( $attachment->post_author );
|
|
|
|
if ( $author->exists() ) {
|
|
$author_name = $author->display_name ? $author->display_name : $author->nickname;
|
|
$response['authorName'] = html_entity_decode( $author_name, ENT_QUOTES, get_bloginfo( 'charset' ) );
|
|
$response['authorLink'] = get_edit_user_link( $author->ID );
|
|
} else {
|
|
$response['authorName'] = __( '(no author)' );
|
|
}
|
|
|
|
if ( $attachment->post_parent ) {
|
|
$post_parent = get_post( $attachment->post_parent );
|
|
if ( $post_parent ) {
|
|
$response['uploadedToTitle'] = $post_parent->post_title ? $post_parent->post_title : __( '(no title)' );
|
|
$response['uploadedToLink'] = get_edit_post_link( $attachment->post_parent, 'raw' );
|
|
}
|
|
}
|
|
|
|
$attached_file = get_attached_file( $attachment->ID );
|
|
|
|
if ( isset( $meta['filesize'] ) ) {
|
|
$bytes = $meta['filesize'];
|
|
} elseif ( file_exists( $attached_file ) ) {
|
|
$bytes = wp_filesize( $attached_file );
|
|
} else {
|
|
$bytes = '';
|
|
}
|
|
|
|
if ( $bytes ) {
|
|
$response['filesizeInBytes'] = $bytes;
|
|
$response['filesizeHumanReadable'] = size_format( $bytes );
|
|
}
|
|
|
|
$context = get_post_meta( $attachment->ID, '_wp_attachment_context', true );
|
|
$response['context'] = ( $context ) ? $context : '';
|
|
|
|
if ( current_user_can( 'edit_post', $attachment->ID ) ) {
|
|
$response['nonces']['update'] = wp_create_nonce( 'update-post_' . $attachment->ID );
|
|
$response['nonces']['edit'] = wp_create_nonce( 'image_editor-' . $attachment->ID );
|
|
$response['editLink'] = get_edit_post_link( $attachment->ID, 'raw' );
|
|
}
|
|
|
|
if ( current_user_can( 'delete_post', $attachment->ID ) ) {
|
|
$response['nonces']['delete'] = wp_create_nonce( 'delete-post_' . $attachment->ID );
|
|
}
|
|
|
|
if ( $meta && ( 'image' === $type || ! empty( $meta['sizes'] ) ) ) {
|
|
$sizes = array();
|
|
|
|
/** This filter is documented in wp-admin/includes/media.php */
|
|
$possible_sizes = apply_filters(
|
|
'image_size_names_choose',
|
|
array(
|
|
'thumbnail' => __( 'Thumbnail' ),
|
|
'medium' => __( 'Medium' ),
|
|
'large' => __( 'Large' ),
|
|
'full' => __( 'Full Size' ),
|
|
)
|
|
);
|
|
unset( $possible_sizes['full'] );
|
|
|
|
/*
|
|
* Loop through all potential sizes that may be chosen. Try to do this with some efficiency.
|
|
* First: run the image_downsize filter. If it returns something, we can use its data.
|
|
* If the filter does not return something, then image_downsize() is just an expensive way
|
|
* to check the image metadata, which we do second.
|
|
*/
|
|
foreach ( $possible_sizes as $size => $label ) {
|
|
|
|
/** This filter is documented in wp-includes/media.php */
|
|
$downsize = apply_filters( 'image_downsize', false, $attachment->ID, $size );
|
|
|
|
if ( $downsize ) {
|
|
if ( empty( $downsize[3] ) ) {
|
|
continue;
|
|
}
|
|
|
|
$sizes[ $size ] = array(
|
|
'height' => $downsize[2],
|
|
'width' => $downsize[1],
|
|
'url' => $downsize[0],
|
|
'orientation' => $downsize[2] > $downsize[1] ? 'portrait' : 'landscape',
|
|
);
|
|
} elseif ( isset( $meta['sizes'][ $size ] ) ) {
|
|
// Nothing from the filter, so consult image metadata if we have it.
|
|
$size_meta = $meta['sizes'][ $size ];
|
|
|
|
/*
|
|
* We have the actual image size, but might need to further constrain it if content_width is narrower.
|
|
* Thumbnail, medium, and full sizes are also checked against the site's height/width options.
|
|
*/
|
|
list( $width, $height ) = image_constrain_size_for_editor( $size_meta['width'], $size_meta['height'], $size, 'edit' );
|
|
|
|
$sizes[ $size ] = array(
|
|
'height' => $height,
|
|
'width' => $width,
|
|
'url' => $base_url . $size_meta['file'],
|
|
'orientation' => $height > $width ? 'portrait' : 'landscape',
|
|
);
|
|
}
|
|
}
|
|
|
|
if ( 'image' === $type ) {
|
|
if ( ! empty( $meta['original_image'] ) ) {
|
|
$response['originalImageURL'] = wp_get_original_image_url( $attachment->ID );
|
|
$response['originalImageName'] = wp_basename( wp_get_original_image_path( $attachment->ID ) );
|
|
}
|
|
|
|
$sizes['full'] = array( 'url' => $attachment_url );
|
|
|
|
if ( isset( $meta['height'], $meta['width'] ) ) {
|
|
$sizes['full']['height'] = $meta['height'];
|
|
$sizes['full']['width'] = $meta['width'];
|
|
$sizes['full']['orientation'] = $meta['height'] > $meta['width'] ? 'portrait' : 'landscape';
|
|
}
|
|
|
|
$response = array_merge( $response, $sizes['full'] );
|
|
} elseif ( $meta['sizes']['full']['file'] ) {
|
|
$sizes['full'] = array(
|
|
'url' => $base_url . $meta['sizes']['full']['file'],
|
|
'height' => $meta['sizes']['full']['height'],
|
|
'width' => $meta['sizes']['full']['width'],
|
|
'orientation' => $meta['sizes']['full']['height'] > $meta['sizes']['full']['width'] ? 'portrait' : 'landscape',
|
|
);
|
|
}
|
|
|
|
$response = array_merge( $response, array( 'sizes' => $sizes ) );
|
|
}
|
|
|
|
if ( $meta && 'video' === $type ) {
|
|
if ( isset( $meta['width'] ) ) {
|
|
$response['width'] = (int) $meta['width'];
|
|
}
|
|
if ( isset( $meta['height'] ) ) {
|
|
$response['height'] = (int) $meta['height'];
|
|
}
|
|
}
|
|
|
|
if ( $meta && ( 'audio' === $type || 'video' === $type ) ) {
|
|
if ( isset( $meta['length_formatted'] ) ) {
|
|
$response['fileLength'] = $meta['length_formatted'];
|
|
$response['fileLengthHumanReadable'] = human_readable_duration( $meta['length_formatted'] );
|
|
}
|
|
|
|
$response['meta'] = array();
|
|
foreach ( wp_get_attachment_id3_keys( $attachment, 'js' ) as $key => $label ) {
|
|
$response['meta'][ $key ] = false;
|
|
|
|
if ( ! empty( $meta[ $key ] ) ) {
|
|
$response['meta'][ $key ] = $meta[ $key ];
|
|
}
|
|
}
|
|
|
|
$id = get_post_thumbnail_id( $attachment->ID );
|
|
if ( ! empty( $id ) ) {
|
|
list( $src, $width, $height ) = wp_get_attachment_image_src( $id, 'full' );
|
|
$response['image'] = compact( 'src', 'width', 'height' );
|
|
list( $src, $width, $height ) = wp_get_attachment_image_src( $id, 'thumbnail' );
|
|
$response['thumb'] = compact( 'src', 'width', 'height' );
|
|
} else {
|
|
$src = wp_mime_type_icon( $attachment->ID, '.svg' );
|
|
$width = 48;
|
|
$height = 64;
|
|
$response['image'] = compact( 'src', 'width', 'height' );
|
|
$response['thumb'] = compact( 'src', 'width', 'height' );
|
|
}
|
|
}
|
|
|
|
if ( function_exists( 'get_compat_media_markup' ) ) {
|
|
$response['compat'] = get_compat_media_markup( $attachment->ID, array( 'in_modal' => true ) );
|
|
}
|
|
|
|
if ( function_exists( 'get_media_states' ) ) {
|
|
$media_states = get_media_states( $attachment );
|
|
if ( ! empty( $media_states ) ) {
|
|
$response['mediaStates'] = implode( ', ', $media_states );
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Filters the attachment data prepared for JavaScript.
|
|
*
|
|
* @since 3.5.0
|
|
*
|
|
* @param array $response Array of prepared attachment data. See {@see wp_prepare_attachment_for_js()}.
|
|
* @param WP_Post $attachment Attachment object.
|
|
* @param array|false $meta Array of attachment meta data, or false if there is none.
|
|
*/
|
|
return apply_filters( 'wp_prepare_attachment_for_js', $response, $attachment, $meta );
|
|
}
|
|
|
|
/**
|
|
* Enqueues all scripts, styles, settings, and templates necessary to use
|
|
* all media JS APIs.
|
|
*
|
|
* @since 3.5.0
|
|
*
|
|
* @global int $content_width
|
|
* @global wpdb $wpdb WordPress database abstraction object.
|
|
* @global WP_Locale $wp_locale WordPress date and time locale object.
|
|
*
|
|
* @param array $args {
|
|
* Arguments for enqueuing media scripts.
|
|
*
|
|
* @type int|WP_Post $post Post ID or post object.
|
|
* }
|
|
*/
|
|
function wp_enqueue_media( $args = array() ) {
|
|
// Enqueue me just once per page, please.
|
|
if ( did_action( 'wp_enqueue_media' ) ) {
|
|
return;
|
|
}
|
|
|
|
global $content_width, $wpdb, $wp_locale;
|
|
|
|
$defaults = array(
|
|
'post' => null,
|
|
);
|
|
$args = wp_parse_args( $args, $defaults );
|
|
|
|
/*
|
|
* We're going to pass the old thickbox media tabs to `media_upload_tabs`
|
|
* to ensure plugins will work. We will then unset those tabs.
|
|
*/
|
|
$tabs = array(
|
|
// handler action suffix => tab label
|
|
'type' => '',
|
|
'type_url' => '',
|
|
'gallery' => '',
|
|
'library' => '',
|
|
);
|
|
|
|
/** This filter is documented in wp-admin/includes/media.php */
|
|
$tabs = apply_filters( 'media_upload_tabs', $tabs );
|
|
unset( $tabs['type'], $tabs['type_url'], $tabs['gallery'], $tabs['library'] );
|
|
|
|
$props = array(
|
|
'link' => get_option( 'image_default_link_type' ), // DB default is 'file'.
|
|
'align' => get_option( 'image_default_align' ), // Empty default.
|
|
'size' => get_option( 'image_default_size' ), // Empty default.
|
|
);
|
|
|
|
$exts = array_merge( wp_get_audio_extensions(), wp_get_video_extensions() );
|
|
$mimes = get_allowed_mime_types();
|
|
$ext_mimes = array();
|
|
foreach ( $exts as $ext ) {
|
|
foreach ( $mimes as $ext_preg => $mime_match ) {
|
|
if ( preg_match( '#' . $ext . '#i', $ext_preg ) ) {
|
|
$ext_mimes[ $ext ] = $mime_match;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Allows showing or hiding the "Create Audio Playlist" button in the media library.
|
|
*
|
|
* By default, the "Create Audio Playlist" button will always be shown in
|
|
* the media library. If this filter returns `null`, a query will be run
|
|
* to determine whether the media library contains any audio items. This
|
|
* was the default behavior prior to version 4.8.0, but this query is
|
|
* expensive for large media libraries.
|
|
*
|
|
* @since 4.7.4
|
|
* @since 4.8.0 The filter's default value is `true` rather than `null`.
|
|
*
|
|
* @link https://core.trac.wordpress.org/ticket/31071
|
|
*
|
|
* @param bool|null $show Whether to show the button, or `null` to decide based
|
|
* on whether any audio files exist in the media library.
|
|
*/
|
|
$show_audio_playlist = apply_filters( 'media_library_show_audio_playlist', true );
|
|
if ( null === $show_audio_playlist ) {
|
|
$show_audio_playlist = $wpdb->get_var(
|
|
"SELECT ID
|
|
FROM $wpdb->posts
|
|
WHERE post_type = 'attachment'
|
|
AND post_mime_type LIKE 'audio%'
|
|
LIMIT 1"
|
|
);
|
|
}
|
|
|
|
/**
|
|
* Allows showing or hiding the "Create Video Playlist" button in the media library.
|
|
*
|
|
* By default, the "Create Video Playlist" button will always be shown in
|
|
* the media library. If this filter returns `null`, a query will be run
|
|
* to determine whether the media library contains any video items. This
|
|
* was the default behavior prior to version 4.8.0, but this query is
|
|
* expensive for large media libraries.
|
|
*
|
|
* @since 4.7.4
|
|
* @since 4.8.0 The filter's default value is `true` rather than `null`.
|
|
*
|
|
* @link https://core.trac.wordpress.org/ticket/31071
|
|
*
|
|
* @param bool|null $show Whether to show the button, or `null` to decide based
|
|
* on whether any video files exist in the media library.
|
|
*/
|
|
$show_video_playlist = apply_filters( 'media_library_show_video_playlist', true );
|
|
if ( null === $show_video_playlist ) {
|
|
$show_video_playlist = $wpdb->get_var(
|
|
"SELECT ID
|
|
FROM $wpdb->posts
|
|
WHERE post_type = 'attachment'
|
|
AND post_mime_type LIKE 'video%'
|
|
LIMIT 1"
|
|
);
|
|
}
|
|
|
|
/**
|
|
* Allows overriding the list of months displayed in the media library.
|
|
*
|
|
* By default (if this filter does not return an array), a query will be
|
|
* run to determine the months that have media items. This query can be
|
|
* expensive for large media libraries, so it may be desirable for sites to
|
|
* override this behavior.
|
|
*
|
|
* @since 4.7.4
|
|
*
|
|
* @link https://core.trac.wordpress.org/ticket/31071
|
|
*
|
|
* @param stdClass[]|null $months An array of objects with `month` and `year`
|
|
* properties, or `null` for default behavior.
|
|
*/
|
|
$months = apply_filters( 'media_library_months_with_files', null );
|
|
if ( ! is_array( $months ) ) {
|
|
$months = $wpdb->get_results(
|
|
$wpdb->prepare(
|
|
"SELECT DISTINCT YEAR( post_date ) AS year, MONTH( post_date ) AS month
|
|
FROM $wpdb->posts
|
|
WHERE post_type = %s
|
|
ORDER BY post_date DESC",
|
|
'attachment'
|
|
)
|
|
);
|
|
}
|
|
foreach ( $months as $month_year ) {
|
|
$month_year->text = sprintf(
|
|
/* translators: 1: Month, 2: Year. */
|
|
__( '%1$s %2$d' ),
|
|
$wp_locale->get_month( $month_year->month ),
|
|
$month_year->year
|
|
);
|
|
}
|
|
|
|
/**
|
|
* Filters whether the Media Library grid has infinite scrolling. Default `false`.
|
|
*
|
|
* @since 5.8.0
|
|
*
|
|
* @param bool $infinite Whether the Media Library grid has infinite scrolling.
|
|
*/
|
|
$infinite_scrolling = apply_filters( 'media_library_infinite_scrolling', false );
|
|
|
|
$settings = array(
|
|
'tabs' => $tabs,
|
|
'tabUrl' => add_query_arg( array( 'chromeless' => true ), admin_url( 'media-upload.php' ) ),
|
|
'mimeTypes' => wp_list_pluck( get_post_mime_types(), 0 ),
|
|
/** This filter is documented in wp-admin/includes/media.php */
|
|
'captions' => ! apply_filters( 'disable_captions', '' ),
|
|
'nonce' => array(
|
|
'sendToEditor' => wp_create_nonce( 'media-send-to-editor' ),
|
|
'setAttachmentThumbnail' => wp_create_nonce( 'set-attachment-thumbnail' ),
|
|
),
|
|
'post' => array(
|
|
'id' => 0,
|
|
),
|
|
'defaultProps' => $props,
|
|
'attachmentCounts' => array(
|
|
'audio' => ( $show_audio_playlist ) ? 1 : 0,
|
|
'video' => ( $show_video_playlist ) ? 1 : 0,
|
|
),
|
|
'oEmbedProxyUrl' => rest_url( 'oembed/1.0/proxy' ),
|
|
'embedExts' => $exts,
|
|
'embedMimes' => $ext_mimes,
|
|
'contentWidth' => $content_width,
|
|
'months' => $months,
|
|
'mediaTrash' => MEDIA_TRASH ? 1 : 0,
|
|
'infiniteScrolling' => ( $infinite_scrolling ) ? 1 : 0,
|
|
);
|
|
|
|
$post = null;
|
|
if ( isset( $args['post'] ) ) {
|
|
$post = get_post( $args['post'] );
|
|
$settings['post'] = array(
|
|
'id' => $post->ID,
|
|
'nonce' => wp_create_nonce( 'update-post_' . $post->ID ),
|
|
);
|
|
|
|
$thumbnail_support = current_theme_supports( 'post-thumbnails', $post->post_type ) && post_type_supports( $post->post_type, 'thumbnail' );
|
|
if ( ! $thumbnail_support && 'attachment' === $post->post_type && $post->post_mime_type ) {
|
|
if ( wp_attachment_is( 'audio', $post ) ) {
|
|
$thumbnail_support = post_type_supports( 'attachment:audio', 'thumbnail' ) || current_theme_supports( 'post-thumbnails', 'attachment:audio' );
|
|
} elseif ( wp_attachment_is( 'video', $post ) ) {
|
|
$thumbnail_support = post_type_supports( 'attachment:video', 'thumbnail' ) || current_theme_supports( 'post-thumbnails', 'attachment:video' );
|
|
}
|
|
}
|
|
|
|
if ( $thumbnail_support ) {
|
|
$featured_image_id = get_post_meta( $post->ID, '_thumbnail_id', true );
|
|
$settings['post']['featuredImageId'] = $featured_image_id ? $featured_image_id : -1;
|
|
}
|
|
}
|
|
|
|
if ( $post ) {
|
|
$post_type_object = get_post_type_object( $post->post_type );
|
|
} else {
|
|
$post_type_object = get_post_type_object( 'post' );
|
|
}
|
|
|
|
$strings = array(
|
|
// Generic.
|
|
'mediaFrameDefaultTitle' => __( 'Media' ),
|
|
'url' => __( 'URL' ),
|
|
'addMedia' => __( 'Add media' ),
|
|
'search' => __( 'Search' ),
|
|
'select' => __( 'Select' ),
|
|
'cancel' => __( 'Cancel' ),
|
|
'update' => __( 'Update' ),
|
|
'replace' => __( 'Replace' ),
|
|
'remove' => __( 'Remove' ),
|
|
'back' => __( 'Back' ),
|
|
/*
|
|
* translators: This is a would-be plural string used in the media manager.
|
|
* If there is not a word you can use in your language to avoid issues with the
|
|
* lack of plural support here, turn it into "selected: %d" then translate it.
|
|
*/
|
|
'selected' => __( '%d selected' ),
|
|
'dragInfo' => __( 'Drag and drop to reorder media files.' ),
|
|
|
|
// Upload.
|
|
'uploadFilesTitle' => __( 'Upload files' ),
|
|
'uploadImagesTitle' => __( 'Upload images' ),
|
|
|
|
// Library.
|
|
'mediaLibraryTitle' => __( 'Media Library' ),
|
|
'insertMediaTitle' => __( 'Add media' ),
|
|
'createNewGallery' => __( 'Create a new gallery' ),
|
|
'createNewPlaylist' => __( 'Create a new playlist' ),
|
|
'createNewVideoPlaylist' => __( 'Create a new video playlist' ),
|
|
'returnToLibrary' => __( '← Go to library' ),
|
|
'allMediaItems' => __( 'All media items' ),
|
|
'allDates' => __( 'All dates' ),
|
|
'noItemsFound' => __( 'No items found.' ),
|
|
'insertIntoPost' => $post_type_object->labels->insert_into_item,
|
|
'unattached' => _x( 'Unattached', 'media items' ),
|
|
'mine' => _x( 'Mine', 'media items' ),
|
|
'trash' => _x( 'Trash', 'noun' ),
|
|
'uploadedToThisPost' => $post_type_object->labels->uploaded_to_this_item,
|
|
'warnDelete' => __( "You are about to permanently delete this item from your site.\nThis action cannot be undone.\n 'Cancel' to stop, 'OK' to delete." ),
|
|
'warnBulkDelete' => __( "You are about to permanently delete these items from your site.\nThis action cannot be undone.\n 'Cancel' to stop, 'OK' to delete." ),
|
|
'warnBulkTrash' => __( "You are about to trash these items.\n 'Cancel' to stop, 'OK' to delete." ),
|
|
'bulkSelect' => __( 'Bulk select' ),
|
|
'trashSelected' => __( 'Move to Trash' ),
|
|
'restoreSelected' => __( 'Restore from Trash' ),
|
|
'deletePermanently' => __( 'Delete permanently' ),
|
|
'errorDeleting' => __( 'Error in deleting the attachment.' ),
|
|
'apply' => __( 'Apply' ),
|
|
'filterByDate' => __( 'Filter by date' ),
|
|
'filterByType' => __( 'Filter by type' ),
|
|
'searchLabel' => __( 'Search' ),
|
|
'searchMediaLabel' => __( 'Search media' ), // Backward compatibility pre-5.3.
|
|
'searchMediaPlaceholder' => __( 'Search media items...' ), // Placeholder (no ellipsis), backward compatibility pre-5.3.
|
|
/* translators: %d: Number of attachments found in a search. */
|
|
'mediaFound' => __( 'Number of media items found: %d' ),
|
|
'noMedia' => __( 'No media items found.' ),
|
|
'noMediaTryNewSearch' => __( 'No media items found. Try a different search.' ),
|
|
|
|
// Library Details.
|
|
'attachmentDetails' => __( 'Attachment details' ),
|
|
|
|
// From URL.
|
|
'insertFromUrlTitle' => __( 'Insert from URL' ),
|
|
|
|
// Featured Images.
|
|
'setFeaturedImageTitle' => $post_type_object->labels->featured_image,
|
|
'setFeaturedImage' => $post_type_object->labels->set_featured_image,
|
|
|
|
// Gallery.
|
|
'createGalleryTitle' => __( 'Create gallery' ),
|
|
'editGalleryTitle' => __( 'Edit gallery' ),
|
|
'cancelGalleryTitle' => __( '← Cancel gallery' ),
|
|
'insertGallery' => __( 'Insert gallery' ),
|
|
'updateGallery' => __( 'Update gallery' ),
|
|
'addToGallery' => __( 'Add to gallery' ),
|
|
'addToGalleryTitle' => __( 'Add to gallery' ),
|
|
'reverseOrder' => __( 'Reverse order' ),
|
|
|
|
// Edit Image.
|
|
'imageDetailsTitle' => __( 'Image details' ),
|
|
'imageReplaceTitle' => __( 'Replace image' ),
|
|
'imageDetailsCancel' => __( 'Cancel edit' ),
|
|
'editImage' => __( 'Edit image' ),
|
|
|
|
// Crop Image.
|
|
'chooseImage' => __( 'Choose image' ),
|
|
'selectAndCrop' => __( 'Select and crop' ),
|
|
'skipCropping' => __( 'Skip cropping' ),
|
|
'cropImage' => __( 'Crop image' ),
|
|
'cropYourImage' => __( 'Crop your image' ),
|
|
'cropping' => __( 'Cropping…' ),
|
|
/* translators: 1: Suggested width number, 2: Suggested height number. */
|
|
'suggestedDimensions' => __( 'Suggested image dimensions: %1$s by %2$s pixels.' ),
|
|
'cropError' => __( 'There has been an error cropping your image.' ),
|
|
|
|
// Edit Audio.
|
|
'audioDetailsTitle' => __( 'Audio details' ),
|
|
'audioReplaceTitle' => __( 'Replace audio' ),
|
|
'audioAddSourceTitle' => __( 'Add audio source' ),
|
|
'audioDetailsCancel' => __( 'Cancel edit' ),
|
|
|
|
// Edit Video.
|
|
'videoDetailsTitle' => __( 'Video details' ),
|
|
'videoReplaceTitle' => __( 'Replace video' ),
|
|
'videoAddSourceTitle' => __( 'Add video source' ),
|
|
'videoDetailsCancel' => __( 'Cancel edit' ),
|
|
'videoSelectPosterImageTitle' => __( 'Select poster image' ),
|
|
'videoAddTrackTitle' => __( 'Add subtitles' ),
|
|
|
|
// Playlist.
|
|
'playlistDragInfo' => __( 'Drag and drop to reorder tracks.' ),
|
|
'createPlaylistTitle' => __( 'Create audio playlist' ),
|
|
'editPlaylistTitle' => __( 'Edit audio playlist' ),
|
|
'cancelPlaylistTitle' => __( '← Cancel audio playlist' ),
|
|
'insertPlaylist' => __( 'Insert audio playlist' ),
|
|
'updatePlaylist' => __( 'Update audio playlist' ),
|
|
'addToPlaylist' => __( 'Add to audio playlist' ),
|
|
'addToPlaylistTitle' => __( 'Add to Audio Playlist' ),
|
|
|
|
// Video Playlist.
|
|
'videoPlaylistDragInfo' => __( 'Drag and drop to reorder videos.' ),
|
|
'createVideoPlaylistTitle' => __( 'Create video playlist' ),
|
|
'editVideoPlaylistTitle' => __( 'Edit video playlist' ),
|
|
'cancelVideoPlaylistTitle' => __( '← Cancel video playlist' ),
|
|
'insertVideoPlaylist' => __( 'Insert video playlist' ),
|
|
'updateVideoPlaylist' => __( 'Update video playlist' ),
|
|
'addToVideoPlaylist' => __( 'Add to video playlist' ),
|
|
'addToVideoPlaylistTitle' => __( 'Add to video Playlist' ),
|
|
|
|
// Headings.
|
|
'filterAttachments' => __( 'Filter media' ),
|
|
'attachmentsList' => __( 'Media list' ),
|
|
);
|
|
|
|
/**
|
|
* Filters the media view settings.
|
|
*
|
|
* @since 3.5.0
|
|
*
|
|
* @param array $settings List of media view settings.
|
|
* @param WP_Post $post Post object.
|
|
*/
|
|
$settings = apply_filters( 'media_view_settings', $settings, $post );
|
|
|
|
/**
|
|
* Filters the media view strings.
|
|
*
|
|
* @since 3.5.0
|
|
*
|
|
* @param string[] $strings Array of media view strings keyed by the name they'll be referenced by in JavaScript.
|
|
* @param WP_Post $post Post object.
|
|
*/
|
|
$strings = apply_filters( 'media_view_strings', $strings, $post );
|
|
|
|
$strings['settings'] = $settings;
|
|
|
|
/*
|
|
* Ensure we enqueue media-editor first, that way media-views
|
|
* is registered internally before we try to localize it. See #24724.
|
|
*/
|
|
wp_enqueue_script( 'media-editor' );
|
|
wp_localize_script( 'media-views', '_wpMediaViewsL10n', $strings );
|
|
|
|
wp_enqueue_script( 'media-audiovideo' );
|
|
wp_enqueue_style( 'media-views' );
|
|
if ( is_admin() ) {
|
|
wp_enqueue_script( 'mce-view' );
|
|
wp_enqueue_script( 'image-edit' );
|
|
}
|
|
wp_enqueue_style( 'imgareaselect' );
|
|
wp_plupload_default_settings();
|
|
|
|
require_once ABSPATH . WPINC . '/media-template.php';
|
|
add_action( 'admin_footer', 'wp_print_media_templates' );
|
|
add_action( 'wp_footer', 'wp_print_media_templates' );
|
|
add_action( 'customize_controls_print_footer_scripts', 'wp_print_media_templates' );
|
|
|
|
/**
|
|
* Fires at the conclusion of wp_enqueue_media().
|
|
*
|
|
* @since 3.5.0
|
|
*/
|
|
do_action( 'wp_enqueue_media' );
|
|
}
|
|
|
|
/**
|
|
* Retrieves media attached to the passed post.
|
|
*
|
|
* @since 3.6.0
|
|
*
|
|
* @param string $type Mime type.
|
|
* @param int|WP_Post $post Optional. Post ID or WP_Post object. Default is global $post.
|
|
* @return WP_Post[] Array of media attached to the given post.
|
|
*/
|
|
function get_attached_media( $type, $post = 0 ) {
|
|
$post = get_post( $post );
|
|
|
|
if ( ! $post ) {
|
|
return array();
|
|
}
|
|
|
|
$args = array(
|
|
'post_parent' => $post->ID,
|
|
'post_type' => 'attachment',
|
|
'post_mime_type' => $type,
|
|
'posts_per_page' => -1,
|
|
'orderby' => 'menu_order',
|
|
'order' => 'ASC',
|
|
);
|
|
|
|
/**
|
|
* Filters arguments used to retrieve media attached to the given post.
|
|
*
|
|
* @since 3.6.0
|
|
*
|
|
* @param array $args Post query arguments.
|
|
* @param string $type Mime type of the desired media.
|
|
* @param WP_Post $post Post object.
|
|
*/
|
|
$args = apply_filters( 'get_attached_media_args', $args, $type, $post );
|
|
|
|
$children = get_children( $args );
|
|
|
|
/**
|
|
* Filters the list of media attached to the given post.
|
|
*
|
|
* @since 3.6.0
|
|
*
|
|
* @param WP_Post[] $children Array of media attached to the given post.
|
|
* @param string $type Mime type of the media desired.
|
|
* @param WP_Post $post Post object.
|
|
*/
|
|
return (array) apply_filters( 'get_attached_media', $children, $type, $post );
|
|
}
|
|
|
|
/**
|
|
* Checks the HTML content for an audio, video, object, embed, or iframe tags.
|
|
*
|
|
* @since 3.6.0
|
|
*
|
|
* @param string $content A string of HTML which might contain media elements.
|
|
* @param string[] $types An array of media types: 'audio', 'video', 'object', 'embed', or 'iframe'.
|
|
* @return string[] Array of found HTML media elements.
|
|
*/
|
|
function get_media_embedded_in_content( $content, $types = null ) {
|
|
$html = array();
|
|
|
|
/**
|
|
* Filters the embedded media types that are allowed to be returned from the content blob.
|
|
*
|
|
* @since 4.2.0
|
|
*
|
|
* @param string[] $allowed_media_types An array of allowed media types. Default media types are
|
|
* 'audio', 'video', 'object', 'embed', and 'iframe'.
|
|
*/
|
|
$allowed_media_types = apply_filters( 'media_embedded_in_content_allowed_types', array( 'audio', 'video', 'object', 'embed', 'iframe' ) );
|
|
|
|
if ( ! empty( $types ) ) {
|
|
if ( ! is_array( $types ) ) {
|
|
$types = array( $types );
|
|
}
|
|
|
|
$allowed_media_types = array_intersect( $allowed_media_types, $types );
|
|
}
|
|
|
|
$tags = implode( '|', $allowed_media_types );
|
|
|
|
if ( preg_match_all( '#<(?P<tag>' . $tags . ')[^<]*?(?:>[\s\S]*?<\/(?P=tag)>|\s*\/>)#', $content, $matches ) ) {
|
|
foreach ( $matches[0] as $match ) {
|
|
$html[] = $match;
|
|
}
|
|
}
|
|
|
|
return $html;
|
|
}
|
|
|
|
/**
|
|
* Retrieves galleries from the passed post's content.
|
|
*
|
|
* @since 3.6.0
|
|
*
|
|
* @param int|WP_Post $post Post ID or object.
|
|
* @param bool $html Optional. Whether to return HTML or data in the array. Default true.
|
|
* @return array A list of arrays, each containing gallery data and srcs parsed
|
|
* from the expanded shortcode.
|
|
*/
|
|
function get_post_galleries( $post, $html = true ) {
|
|
$post = get_post( $post );
|
|
|
|
if ( ! $post ) {
|
|
return array();
|
|
}
|
|
|
|
if ( ! has_shortcode( $post->post_content, 'gallery' ) && ! has_block( 'gallery', $post->post_content ) ) {
|
|
return array();
|
|
}
|
|
|
|
$galleries = array();
|
|
if ( preg_match_all( '/' . get_shortcode_regex() . '/s', $post->post_content, $matches, PREG_SET_ORDER ) ) {
|
|
foreach ( $matches as $shortcode ) {
|
|
if ( 'gallery' === $shortcode[2] ) {
|
|
$srcs = array();
|
|
|
|
$shortcode_attrs = shortcode_parse_atts( $shortcode[3] );
|
|
if ( ! is_array( $shortcode_attrs ) ) {
|
|
$shortcode_attrs = array();
|
|
}
|
|
|
|
// Specify the post ID of the gallery we're viewing if the shortcode doesn't reference another post already.
|
|
if ( ! isset( $shortcode_attrs['id'] ) ) {
|
|
$shortcode[3] .= ' id="' . (int) $post->ID . '"';
|
|
}
|
|
|
|
$gallery = do_shortcode_tag( $shortcode );
|
|
if ( $html ) {
|
|
$galleries[] = $gallery;
|
|
} else {
|
|
preg_match_all( '#src=([\'"])(.+?)\1#is', $gallery, $src, PREG_SET_ORDER );
|
|
if ( ! empty( $src ) ) {
|
|
foreach ( $src as $s ) {
|
|
$srcs[] = $s[2];
|
|
}
|
|
}
|
|
|
|
$galleries[] = array_merge(
|
|
$shortcode_attrs,
|
|
array(
|
|
'src' => array_values( array_unique( $srcs ) ),
|
|
)
|
|
);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if ( has_block( 'gallery', $post->post_content ) ) {
|
|
$post_blocks = parse_blocks( $post->post_content );
|
|
|
|
while ( $block = array_shift( $post_blocks ) ) {
|
|
$has_inner_blocks = ! empty( $block['innerBlocks'] );
|
|
|
|
// Skip blocks with no blockName and no innerHTML.
|
|
if ( ! $block['blockName'] ) {
|
|
continue;
|
|
}
|
|
|
|
// Skip non-Gallery blocks.
|
|
if ( 'core/gallery' !== $block['blockName'] ) {
|
|
// Move inner blocks into the root array before skipping.
|
|
if ( $has_inner_blocks ) {
|
|
array_push( $post_blocks, ...$block['innerBlocks'] );
|
|
}
|
|
continue;
|
|
}
|
|
|
|
// New Gallery block format as HTML.
|
|
if ( $has_inner_blocks && $html ) {
|
|
$block_html = wp_list_pluck( $block['innerBlocks'], 'innerHTML' );
|
|
$galleries[] = '<figure>' . implode( ' ', $block_html ) . '</figure>';
|
|
continue;
|
|
}
|
|
|
|
$srcs = array();
|
|
|
|
// New Gallery block format as an array.
|
|
if ( $has_inner_blocks ) {
|
|
$attrs = wp_list_pluck( $block['innerBlocks'], 'attrs' );
|
|
$ids = wp_list_pluck( $attrs, 'id' );
|
|
|
|
foreach ( $ids as $id ) {
|
|
$url = wp_get_attachment_url( $id );
|
|
|
|
if ( is_string( $url ) && ! in_array( $url, $srcs, true ) ) {
|
|
$srcs[] = $url;
|
|
}
|
|
}
|
|
|
|
$galleries[] = array(
|
|
'ids' => implode( ',', $ids ),
|
|
'src' => $srcs,
|
|
);
|
|
|
|
continue;
|
|
}
|
|
|
|
// Old Gallery block format as HTML.
|
|
if ( $html ) {
|
|
$galleries[] = $block['innerHTML'];
|
|
continue;
|
|
}
|
|
|
|
// Old Gallery block format as an array.
|
|
$ids = ! empty( $block['attrs']['ids'] ) ? $block['attrs']['ids'] : array();
|
|
|
|
// If present, use the image IDs from the JSON blob as canonical.
|
|
if ( ! empty( $ids ) ) {
|
|
foreach ( $ids as $id ) {
|
|
$url = wp_get_attachment_url( $id );
|
|
|
|
if ( is_string( $url ) && ! in_array( $url, $srcs, true ) ) {
|
|
$srcs[] = $url;
|
|
}
|
|
}
|
|
|
|
$galleries[] = array(
|
|
'ids' => implode( ',', $ids ),
|
|
'src' => $srcs,
|
|
);
|
|
|
|
continue;
|
|
}
|
|
|
|
// Otherwise, extract srcs from the innerHTML.
|
|
preg_match_all( '#src=([\'"])(.+?)\1#is', $block['innerHTML'], $found_srcs, PREG_SET_ORDER );
|
|
|
|
if ( ! empty( $found_srcs[0] ) ) {
|
|
foreach ( $found_srcs as $src ) {
|
|
if ( isset( $src[2] ) && ! in_array( $src[2], $srcs, true ) ) {
|
|
$srcs[] = $src[2];
|
|
}
|
|
}
|
|
}
|
|
|
|
$galleries[] = array( 'src' => $srcs );
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Filters the list of all found galleries in the given post.
|
|
*
|
|
* @since 3.6.0
|
|
*
|
|
* @param array $galleries Associative array of all found post galleries.
|
|
* @param WP_Post $post Post object.
|
|
*/
|
|
return apply_filters( 'get_post_galleries', $galleries, $post );
|
|
}
|
|
|
|
/**
|
|
* Checks a specified post's content for gallery and, if present, return the first
|
|
*
|
|
* @since 3.6.0
|
|
*
|
|
* @param int|WP_Post $post Optional. Post ID or WP_Post object. Default is global $post.
|
|
* @param bool $html Optional. Whether to return HTML or data. Default is true.
|
|
* @return string|array Gallery data and srcs parsed from the expanded shortcode.
|
|
*/
|
|
function get_post_gallery( $post = 0, $html = true ) {
|
|
$galleries = get_post_galleries( $post, $html );
|
|
$gallery = reset( $galleries );
|
|
|
|
/**
|
|
* Filters the first-found post gallery.
|
|
*
|
|
* @since 3.6.0
|
|
*
|
|
* @param array $gallery The first-found post gallery.
|
|
* @param int|WP_Post $post Post ID or object.
|
|
* @param array $galleries Associative array of all found post galleries.
|
|
*/
|
|
return apply_filters( 'get_post_gallery', $gallery, $post, $galleries );
|
|
}
|
|
|
|
/**
|
|
* Retrieves the image srcs from galleries from a post's content, if present.
|
|
*
|
|
* @since 3.6.0
|
|
*
|
|
* @see get_post_galleries()
|
|
*
|
|
* @param int|WP_Post $post Optional. Post ID or WP_Post object. Default is global `$post`.
|
|
* @return array A list of lists, each containing image srcs parsed.
|
|
* from an expanded shortcode
|
|
*/
|
|
function get_post_galleries_images( $post = 0 ) {
|
|
$galleries = get_post_galleries( $post, false );
|
|
return wp_list_pluck( $galleries, 'src' );
|
|
}
|
|
|
|
/**
|
|
* Checks a post's content for galleries and return the image srcs for the first found gallery.
|
|
*
|
|
* @since 3.6.0
|
|
*
|
|
* @see get_post_gallery()
|
|
*
|
|
* @param int|WP_Post $post Optional. Post ID or WP_Post object. Default is global `$post`.
|
|
* @return string[] A list of a gallery's image srcs in order.
|
|
*/
|
|
function get_post_gallery_images( $post = 0 ) {
|
|
$gallery = get_post_gallery( $post, false );
|
|
return empty( $gallery['src'] ) ? array() : $gallery['src'];
|
|
}
|
|
|
|
/**
|
|
* Maybe attempts to generate attachment metadata, if missing.
|
|
*
|
|
* @since 3.9.0
|
|
*
|
|
* @param WP_Post $attachment Attachment object.
|
|
*/
|
|
function wp_maybe_generate_attachment_metadata( $attachment ) {
|
|
if ( empty( $attachment ) || empty( $attachment->ID ) ) {
|
|
return;
|
|
}
|
|
|
|
$attachment_id = (int) $attachment->ID;
|
|
$file = get_attached_file( $attachment_id );
|
|
$meta = wp_get_attachment_metadata( $attachment_id );
|
|
|
|
if ( empty( $meta ) && file_exists( $file ) ) {
|
|
$_meta = get_post_meta( $attachment_id );
|
|
$_lock = 'wp_generating_att_' . $attachment_id;
|
|
|
|
if ( ! array_key_exists( '_wp_attachment_metadata', $_meta ) && ! get_transient( $_lock ) ) {
|
|
set_transient( $_lock, $file );
|
|
wp_update_attachment_metadata( $attachment_id, wp_generate_attachment_metadata( $attachment_id, $file ) );
|
|
delete_transient( $_lock );
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Tries to convert an attachment URL into a post ID.
|
|
*
|
|
* @since 4.0.0
|
|
*
|
|
* @global wpdb $wpdb WordPress database abstraction object.
|
|
*
|
|
* @param string $url The URL to resolve.
|
|
* @return int The found post ID, or 0 on failure.
|
|
*/
|
|
function attachment_url_to_postid( $url ) {
|
|
global $wpdb;
|
|
|
|
$dir = wp_get_upload_dir();
|
|
$path = $url;
|
|
|
|
$site_url = parse_url( $dir['url'] );
|
|
$image_path = parse_url( $path );
|
|
|
|
// Force the protocols to match if needed.
|
|
if ( isset( $image_path['scheme'] ) && ( $image_path['scheme'] !== $site_url['scheme'] ) ) {
|
|
$path = str_replace( $image_path['scheme'], $site_url['scheme'], $path );
|
|
}
|
|
|
|
if ( str_starts_with( $path, $dir['baseurl'] . '/' ) ) {
|
|
$path = substr( $path, strlen( $dir['baseurl'] . '/' ) );
|
|
}
|
|
|
|
$sql = $wpdb->prepare(
|
|
"SELECT post_id, meta_value FROM $wpdb->postmeta WHERE meta_key = '_wp_attached_file' AND meta_value = %s",
|
|
$path
|
|
);
|
|
|
|
$results = $wpdb->get_results( $sql );
|
|
$post_id = null;
|
|
|
|
if ( $results ) {
|
|
// Use the first available result, but prefer a case-sensitive match, if exists.
|
|
$post_id = reset( $results )->post_id;
|
|
|
|
if ( count( $results ) > 1 ) {
|
|
foreach ( $results as $result ) {
|
|
if ( $path === $result->meta_value ) {
|
|
$post_id = $result->post_id;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Filters an attachment ID found by URL.
|
|
*
|
|
* @since 4.2.0
|
|
*
|
|
* @param int|null $post_id The post_id (if any) found by the function.
|
|
* @param string $url The URL being looked up.
|
|
*/
|
|
return (int) apply_filters( 'attachment_url_to_postid', $post_id, $url );
|
|
}
|
|
|
|
/**
|
|
* Returns the URLs for CSS files used in an iframe-sandbox'd TinyMCE media view.
|
|
*
|
|
* @since 4.0.0
|
|
*
|
|
* @return string[] The relevant CSS file URLs.
|
|
*/
|
|
function wpview_media_sandbox_styles() {
|
|
$version = 'ver=' . get_bloginfo( 'version' );
|
|
$mediaelement = includes_url( "js/mediaelement/mediaelementplayer-legacy.min.css?$version" );
|
|
$wpmediaelement = includes_url( "js/mediaelement/wp-mediaelement.css?$version" );
|
|
|
|
return array( $mediaelement, $wpmediaelement );
|
|
}
|
|
|
|
/**
|
|
* Registers the personal data exporter for media.
|
|
*
|
|
* @param array[] $exporters An array of personal data exporters, keyed by their ID.
|
|
* @return array[] Updated array of personal data exporters.
|
|
*/
|
|
function wp_register_media_personal_data_exporter( $exporters ) {
|
|
$exporters['wordpress-media'] = array(
|
|
'exporter_friendly_name' => __( 'WordPress Media' ),
|
|
'callback' => 'wp_media_personal_data_exporter',
|
|
);
|
|
|
|
return $exporters;
|
|
}
|
|
|
|
/**
|
|
* Finds and exports attachments associated with an email address.
|
|
*
|
|
* @since 4.9.6
|
|
*
|
|
* @param string $email_address The attachment owner email address.
|
|
* @param int $page Attachment page number.
|
|
* @return array {
|
|
* An array of personal data.
|
|
*
|
|
* @type array[] $data An array of personal data arrays.
|
|
* @type bool $done Whether the exporter is finished.
|
|
* }
|
|
*/
|
|
function wp_media_personal_data_exporter( $email_address, $page = 1 ) {
|
|
// Limit us to 50 attachments at a time to avoid timing out.
|
|
$number = 50;
|
|
$page = (int) $page;
|
|
|
|
$data_to_export = array();
|
|
|
|
$user = get_user_by( 'email', $email_address );
|
|
if ( false === $user ) {
|
|
return array(
|
|
'data' => $data_to_export,
|
|
'done' => true,
|
|
);
|
|
}
|
|
|
|
$post_query = new WP_Query(
|
|
array(
|
|
'author' => $user->ID,
|
|
'posts_per_page' => $number,
|
|
'paged' => $page,
|
|
'post_type' => 'attachment',
|
|
'post_status' => 'any',
|
|
'orderby' => 'ID',
|
|
'order' => 'ASC',
|
|
)
|
|
);
|
|
|
|
foreach ( (array) $post_query->posts as $post ) {
|
|
$attachment_url = wp_get_attachment_url( $post->ID );
|
|
|
|
if ( $attachment_url ) {
|
|
$post_data_to_export = array(
|
|
array(
|
|
'name' => __( 'URL' ),
|
|
'value' => $attachment_url,
|
|
),
|
|
);
|
|
|
|
$data_to_export[] = array(
|
|
'group_id' => 'media',
|
|
'group_label' => __( 'Media' ),
|
|
'group_description' => __( 'User’s media data.' ),
|
|
'item_id' => "post-{$post->ID}",
|
|
'data' => $post_data_to_export,
|
|
);
|
|
}
|
|
}
|
|
|
|
$done = $post_query->max_num_pages <= $page;
|
|
|
|
return array(
|
|
'data' => $data_to_export,
|
|
'done' => $done,
|
|
);
|
|
}
|
|
|
|
/**
|
|
* Adds additional default image sub-sizes.
|
|
*
|
|
* These sizes are meant to enhance the way WordPress displays images on the front-end on larger,
|
|
* high-density devices. They make it possible to generate more suitable `srcset` and `sizes` attributes
|
|
* when the users upload large images.
|
|
*
|
|
* The sizes can be changed or removed by themes and plugins but that is not recommended.
|
|
* The size "names" reflect the image dimensions, so changing the sizes would be quite misleading.
|
|
*
|
|
* @since 5.3.0
|
|
* @access private
|
|
*/
|
|
function _wp_add_additional_image_sizes() {
|
|
// 2x medium_large size.
|
|
add_image_size( '1536x1536', 1536, 1536 );
|
|
// 2x large size.
|
|
add_image_size( '2048x2048', 2048, 2048 );
|
|
}
|
|
|
|
/**
|
|
* Callback to enable showing of the user error when uploading .heic images.
|
|
*
|
|
* @since 5.5.0
|
|
*
|
|
* @param array[] $plupload_settings The settings for Plupload.js.
|
|
* @return array[] Modified settings for Plupload.js.
|
|
*/
|
|
function wp_show_heic_upload_error( $plupload_settings ) {
|
|
$plupload_settings['heic_upload_error'] = true;
|
|
return $plupload_settings;
|
|
}
|
|
|
|
/**
|
|
* Allows PHP's getimagesize() to be debuggable when necessary.
|
|
*
|
|
* @since 5.7.0
|
|
* @since 5.8.0 Added support for WebP images.
|
|
* @since 6.5.0 Added support for AVIF images.
|
|
*
|
|
* @param string $filename The file path.
|
|
* @param array $image_info Optional. Extended image information (passed by reference).
|
|
* @return array|false Array of image information or false on failure.
|
|
*/
|
|
function wp_getimagesize( $filename, ?array &$image_info = null ) {
|
|
// Don't silence errors when in debug mode, unless running unit tests.
|
|
if ( defined( 'WP_DEBUG' ) && WP_DEBUG
|
|
&& ! defined( 'WP_RUN_CORE_TESTS' )
|
|
) {
|
|
if ( 2 === func_num_args() ) {
|
|
$info = getimagesize( $filename, $image_info );
|
|
} else {
|
|
$info = getimagesize( $filename );
|
|
}
|
|
} else {
|
|
/*
|
|
* Silencing notice and warning is intentional.
|
|
*
|
|
* getimagesize() has a tendency to generate errors, such as
|
|
* "corrupt JPEG data: 7191 extraneous bytes before marker",
|
|
* even when it's able to provide image size information.
|
|
*
|
|
* See https://core.trac.wordpress.org/ticket/42480
|
|
*/
|
|
if ( 2 === func_num_args() ) {
|
|
$info = @getimagesize( $filename, $image_info );
|
|
} else {
|
|
$info = @getimagesize( $filename );
|
|
}
|
|
}
|
|
|
|
if (
|
|
! empty( $info ) &&
|
|
// Some PHP versions return 0x0 sizes from `getimagesize` for unrecognized image formats, including AVIFs.
|
|
! ( empty( $info[0] ) && empty( $info[1] ) )
|
|
) {
|
|
return $info;
|
|
}
|
|
|
|
/*
|
|
* For PHP versions that don't support WebP images,
|
|
* extract the image size info from the file headers.
|
|
*/
|
|
if ( 'image/webp' === wp_get_image_mime( $filename ) ) {
|
|
$webp_info = wp_get_webp_info( $filename );
|
|
$width = $webp_info['width'];
|
|
$height = $webp_info['height'];
|
|
|
|
// Mimic the native return format.
|
|
if ( $width && $height ) {
|
|
return array(
|
|
$width,
|
|
$height,
|
|
IMAGETYPE_WEBP,
|
|
sprintf(
|
|
'width="%d" height="%d"',
|
|
$width,
|
|
$height
|
|
),
|
|
'mime' => 'image/webp',
|
|
);
|
|
}
|
|
}
|
|
|
|
// For PHP versions that don't support AVIF images, extract the image size info from the file headers.
|
|
if ( 'image/avif' === wp_get_image_mime( $filename ) ) {
|
|
$avif_info = wp_get_avif_info( $filename );
|
|
|
|
$width = $avif_info['width'];
|
|
$height = $avif_info['height'];
|
|
|
|
// Mimic the native return format.
|
|
if ( $width && $height ) {
|
|
return array(
|
|
$width,
|
|
$height,
|
|
IMAGETYPE_AVIF,
|
|
sprintf(
|
|
'width="%d" height="%d"',
|
|
$width,
|
|
$height
|
|
),
|
|
'mime' => 'image/avif',
|
|
);
|
|
}
|
|
}
|
|
|
|
// The image could not be parsed.
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Extracts meta information about an AVIF file: width, height, bit depth, and number of channels.
|
|
*
|
|
* @since 6.5.0
|
|
*
|
|
* @param string $filename Path to an AVIF file.
|
|
* @return array {
|
|
* An array of AVIF image information.
|
|
*
|
|
* @type int|false $width Image width on success, false on failure.
|
|
* @type int|false $height Image height on success, false on failure.
|
|
* @type int|false $bit_depth Image bit depth on success, false on failure.
|
|
* @type int|false $num_channels Image number of channels on success, false on failure.
|
|
* }
|
|
*/
|
|
function wp_get_avif_info( $filename ) {
|
|
$results = array(
|
|
'width' => false,
|
|
'height' => false,
|
|
'bit_depth' => false,
|
|
'num_channels' => false,
|
|
);
|
|
|
|
if ( 'image/avif' !== wp_get_image_mime( $filename ) ) {
|
|
return $results;
|
|
}
|
|
|
|
// Parse the file using libavifinfo's PHP implementation.
|
|
require_once ABSPATH . WPINC . '/class-avif-info.php';
|
|
|
|
$handle = fopen( $filename, 'rb' );
|
|
if ( $handle ) {
|
|
$parser = new Avifinfo\Parser( $handle );
|
|
$success = $parser->parse_ftyp() && $parser->parse_file();
|
|
fclose( $handle );
|
|
if ( $success ) {
|
|
$results = $parser->features->primary_item_features;
|
|
}
|
|
}
|
|
return $results;
|
|
}
|
|
|
|
/**
|
|
* Extracts meta information about a WebP file: width, height, and type.
|
|
*
|
|
* @since 5.8.0
|
|
*
|
|
* @param string $filename Path to a WebP file.
|
|
* @return array {
|
|
* An array of WebP image information.
|
|
*
|
|
* @type int|false $width Image width on success, false on failure.
|
|
* @type int|false $height Image height on success, false on failure.
|
|
* @type string|false $type The WebP type: one of 'lossy', 'lossless' or 'animated-alpha'.
|
|
* False on failure.
|
|
* }
|
|
*/
|
|
function wp_get_webp_info( $filename ) {
|
|
$width = false;
|
|
$height = false;
|
|
$type = false;
|
|
|
|
if ( 'image/webp' !== wp_get_image_mime( $filename ) ) {
|
|
return compact( 'width', 'height', 'type' );
|
|
}
|
|
|
|
$magic = file_get_contents( $filename, false, null, 0, 40 );
|
|
|
|
if ( false === $magic ) {
|
|
return compact( 'width', 'height', 'type' );
|
|
}
|
|
|
|
// Make sure we got enough bytes.
|
|
if ( strlen( $magic ) < 40 ) {
|
|
return compact( 'width', 'height', 'type' );
|
|
}
|
|
|
|
/*
|
|
* The headers are a little different for each of the three formats.
|
|
* Header values based on WebP docs, see https://developers.google.com/speed/webp/docs/riff_container.
|
|
*/
|
|
switch ( substr( $magic, 12, 4 ) ) {
|
|
// Lossy WebP.
|
|
case 'VP8 ':
|
|
$parts = unpack( 'v2', substr( $magic, 26, 4 ) );
|
|
$width = (int) ( $parts[1] & 0x3FFF );
|
|
$height = (int) ( $parts[2] & 0x3FFF );
|
|
$type = 'lossy';
|
|
break;
|
|
// Lossless WebP.
|
|
case 'VP8L':
|
|
$parts = unpack( 'C4', substr( $magic, 21, 4 ) );
|
|
$width = (int) ( $parts[1] | ( ( $parts[2] & 0x3F ) << 8 ) ) + 1;
|
|
$height = (int) ( ( ( $parts[2] & 0xC0 ) >> 6 ) | ( $parts[3] << 2 ) | ( ( $parts[4] & 0x03 ) << 10 ) ) + 1;
|
|
$type = 'lossless';
|
|
break;
|
|
// Animated/alpha WebP.
|
|
case 'VP8X':
|
|
// Pad 24-bit int.
|
|
$width = unpack( 'V', substr( $magic, 24, 3 ) . "\x00" );
|
|
$width = (int) ( $width[1] & 0xFFFFFF ) + 1;
|
|
// Pad 24-bit int.
|
|
$height = unpack( 'V', substr( $magic, 27, 3 ) . "\x00" );
|
|
$height = (int) ( $height[1] & 0xFFFFFF ) + 1;
|
|
$type = 'animated-alpha';
|
|
break;
|
|
}
|
|
|
|
return compact( 'width', 'height', 'type' );
|
|
}
|
|
|
|
/**
|
|
* Gets loading optimization attributes.
|
|
*
|
|
* This function returns an array of attributes that should be merged into the given attributes array to optimize
|
|
* loading performance. Potential attributes returned by this function are:
|
|
* - `loading` attribute with a value of "lazy"
|
|
* - `fetchpriority` attribute with a value of "high"
|
|
* - `decoding` attribute with a value of "async"
|
|
*
|
|
* If any of these attributes are already present in the given attributes, they will not be modified. Note that no
|
|
* element should have both `loading="lazy"` and `fetchpriority="high"`, so the function will trigger a warning in case
|
|
* both attributes are present with those values.
|
|
*
|
|
* @since 6.3.0
|
|
*
|
|
* @global WP_Query $wp_query WordPress Query object.
|
|
*
|
|
* @param string $tag_name The tag name.
|
|
* @param array $attr Array of the attributes for the tag.
|
|
* @param string $context Context for the element for which the loading optimization attribute is requested.
|
|
* @return array Loading optimization attributes.
|
|
*/
|
|
function wp_get_loading_optimization_attributes( $tag_name, $attr, $context ) {
|
|
global $wp_query;
|
|
|
|
/**
|
|
* Filters whether to short-circuit loading optimization attributes.
|
|
*
|
|
* Returning an array from the filter will effectively short-circuit the loading of optimization attributes,
|
|
* returning that value instead.
|
|
*
|
|
* @since 6.4.0
|
|
*
|
|
* @param array|false $loading_attrs False by default, or array of loading optimization attributes to short-circuit.
|
|
* @param string $tag_name The tag name.
|
|
* @param array $attr Array of the attributes for the tag.
|
|
* @param string $context Context for the element for which the loading optimization attribute is requested.
|
|
*/
|
|
$loading_attrs = apply_filters( 'pre_wp_get_loading_optimization_attributes', false, $tag_name, $attr, $context );
|
|
|
|
if ( is_array( $loading_attrs ) ) {
|
|
return $loading_attrs;
|
|
}
|
|
|
|
$loading_attrs = array();
|
|
|
|
/*
|
|
* Skip lazy-loading for the overall block template, as it is handled more granularly.
|
|
* The skip is also applicable for `fetchpriority`.
|
|
*/
|
|
if ( 'template' === $context ) {
|
|
/** This filter is documented in wp-includes/media.php */
|
|
return apply_filters( 'wp_get_loading_optimization_attributes', $loading_attrs, $tag_name, $attr, $context );
|
|
}
|
|
|
|
// For now this function only supports images and iframes.
|
|
if ( 'img' !== $tag_name && 'iframe' !== $tag_name ) {
|
|
/** This filter is documented in wp-includes/media.php */
|
|
return apply_filters( 'wp_get_loading_optimization_attributes', $loading_attrs, $tag_name, $attr, $context );
|
|
}
|
|
|
|
/*
|
|
* Skip programmatically created images within content blobs as they need to be handled together with the other
|
|
* images within the post content or widget content.
|
|
* Without this clause, they would already be considered within their own context which skews the image count and
|
|
* can result in the first post content image being lazy-loaded or an image further down the page being marked as a
|
|
* high priority.
|
|
*/
|
|
if (
|
|
'the_content' !== $context && doing_filter( 'the_content' ) ||
|
|
'widget_text_content' !== $context && doing_filter( 'widget_text_content' ) ||
|
|
'widget_block_content' !== $context && doing_filter( 'widget_block_content' )
|
|
) {
|
|
/** This filter is documented in wp-includes/media.php */
|
|
return apply_filters( 'wp_get_loading_optimization_attributes', $loading_attrs, $tag_name, $attr, $context );
|
|
|
|
}
|
|
|
|
/*
|
|
* Add `decoding` with a value of "async" for every image unless it has a
|
|
* conflicting `decoding` attribute already present.
|
|
*/
|
|
if ( 'img' === $tag_name ) {
|
|
if ( isset( $attr['decoding'] ) ) {
|
|
$loading_attrs['decoding'] = $attr['decoding'];
|
|
} else {
|
|
$loading_attrs['decoding'] = 'async';
|
|
}
|
|
}
|
|
|
|
// For any resources, width and height must be provided, to avoid layout shifts.
|
|
if ( ! isset( $attr['width'], $attr['height'] ) ) {
|
|
/** This filter is documented in wp-includes/media.php */
|
|
return apply_filters( 'wp_get_loading_optimization_attributes', $loading_attrs, $tag_name, $attr, $context );
|
|
}
|
|
|
|
/*
|
|
* The key function logic starts here.
|
|
*/
|
|
$maybe_in_viewport = null;
|
|
$increase_count = false;
|
|
$maybe_increase_count = false;
|
|
|
|
// Logic to handle a `loading` attribute that is already provided.
|
|
if ( isset( $attr['loading'] ) ) {
|
|
/*
|
|
* Interpret "lazy" as not in viewport. Any other value can be
|
|
* interpreted as in viewport (realistically only "eager" or `false`
|
|
* to force-omit the attribute are other potential values).
|
|
*/
|
|
if ( 'lazy' === $attr['loading'] ) {
|
|
$maybe_in_viewport = false;
|
|
} else {
|
|
$maybe_in_viewport = true;
|
|
}
|
|
}
|
|
|
|
// Logic to handle a `fetchpriority` attribute that is already provided.
|
|
if ( isset( $attr['fetchpriority'] ) && 'high' === $attr['fetchpriority'] ) {
|
|
/*
|
|
* If the image was already determined to not be in the viewport (e.g.
|
|
* from an already provided `loading` attribute), trigger a warning.
|
|
* Otherwise, the value can be interpreted as in viewport, since only
|
|
* the most important in-viewport image should have `fetchpriority` set
|
|
* to "high".
|
|
*/
|
|
if ( false === $maybe_in_viewport ) {
|
|
_doing_it_wrong(
|
|
__FUNCTION__,
|
|
__( 'An image should not be lazy-loaded and marked as high priority at the same time.' ),
|
|
'6.3.0'
|
|
);
|
|
/*
|
|
* Set `fetchpriority` here for backward-compatibility as we should
|
|
* not override what a developer decided, even though it seems
|
|
* incorrect.
|
|
*/
|
|
$loading_attrs['fetchpriority'] = 'high';
|
|
} else {
|
|
$maybe_in_viewport = true;
|
|
}
|
|
}
|
|
|
|
if ( null === $maybe_in_viewport ) {
|
|
$header_enforced_contexts = array(
|
|
'template_part_' . WP_TEMPLATE_PART_AREA_HEADER => true,
|
|
'get_header_image_tag' => true,
|
|
);
|
|
|
|
/**
|
|
* Filters the header-specific contexts.
|
|
*
|
|
* @since 6.4.0
|
|
*
|
|
* @param array $default_header_enforced_contexts Map of contexts for which elements should be considered
|
|
* in the header of the page, as $context => $enabled
|
|
* pairs. The $enabled should always be true.
|
|
*/
|
|
$header_enforced_contexts = apply_filters( 'wp_loading_optimization_force_header_contexts', $header_enforced_contexts );
|
|
|
|
// Consider elements with these header-specific contexts to be in viewport.
|
|
if ( isset( $header_enforced_contexts[ $context ] ) ) {
|
|
$maybe_in_viewport = true;
|
|
$maybe_increase_count = true;
|
|
} elseif ( ! is_admin() && in_the_loop() && is_main_query() ) {
|
|
/*
|
|
* Get the content media count, since this is a main query
|
|
* content element. This is accomplished by "increasing"
|
|
* the count by zero, as the only way to get the count is
|
|
* to call this function.
|
|
* The actual count increase happens further below, based
|
|
* on the `$increase_count` flag set here.
|
|
*/
|
|
$content_media_count = wp_increase_content_media_count( 0 );
|
|
$increase_count = true;
|
|
|
|
// If the count so far is below the threshold, `loading` attribute is omitted.
|
|
if ( $content_media_count < wp_omit_loading_attr_threshold() ) {
|
|
$maybe_in_viewport = true;
|
|
} else {
|
|
$maybe_in_viewport = false;
|
|
}
|
|
} elseif (
|
|
// Only apply for main query but before the loop.
|
|
$wp_query->before_loop && $wp_query->is_main_query()
|
|
/*
|
|
* Any image before the loop, but after the header has started should not be lazy-loaded,
|
|
* except when the footer has already started which can happen when the current template
|
|
* does not include any loop.
|
|
*/
|
|
&& did_action( 'get_header' ) && ! did_action( 'get_footer' )
|
|
) {
|
|
$maybe_in_viewport = true;
|
|
$maybe_increase_count = true;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* If the element is in the viewport (`true`), potentially add
|
|
* `fetchpriority` with a value of "high". Otherwise, i.e. if the element
|
|
* is not not in the viewport (`false`) or it is unknown (`null`), add
|
|
* `loading` with a value of "lazy".
|
|
*/
|
|
if ( $maybe_in_viewport ) {
|
|
$loading_attrs = wp_maybe_add_fetchpriority_high_attr( $loading_attrs, $tag_name, $attr );
|
|
} else {
|
|
// Only add `loading="lazy"` if the feature is enabled.
|
|
if ( wp_lazy_loading_enabled( $tag_name, $context ) ) {
|
|
$loading_attrs['loading'] = 'lazy';
|
|
}
|
|
}
|
|
|
|
/*
|
|
* If flag was set based on contextual logic above, increase the content
|
|
* media count, either unconditionally, or based on whether the image size
|
|
* is larger than the threshold.
|
|
*/
|
|
if ( $increase_count ) {
|
|
wp_increase_content_media_count();
|
|
} elseif ( $maybe_increase_count ) {
|
|
/** This filter is documented in wp-includes/media.php */
|
|
$wp_min_priority_img_pixels = apply_filters( 'wp_min_priority_img_pixels', 50000 );
|
|
|
|
if ( $wp_min_priority_img_pixels <= $attr['width'] * $attr['height'] ) {
|
|
wp_increase_content_media_count();
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Filters the loading optimization attributes.
|
|
*
|
|
* @since 6.4.0
|
|
*
|
|
* @param array $loading_attrs The loading optimization attributes.
|
|
* @param string $tag_name The tag name.
|
|
* @param array $attr Array of the attributes for the tag.
|
|
* @param string $context Context for the element for which the loading optimization attribute is requested.
|
|
*/
|
|
return apply_filters( 'wp_get_loading_optimization_attributes', $loading_attrs, $tag_name, $attr, $context );
|
|
}
|
|
|
|
/**
|
|
* Gets the threshold for how many of the first content media elements to not lazy-load.
|
|
*
|
|
* This function runs the {@see 'wp_omit_loading_attr_threshold'} filter, which uses a default threshold value of 3.
|
|
* The filter is only run once per page load, unless the `$force` parameter is used.
|
|
*
|
|
* @since 5.9.0
|
|
*
|
|
* @param bool $force Optional. If set to true, the filter will be (re-)applied even if it already has been before.
|
|
* Default false.
|
|
* @return int The number of content media elements to not lazy-load.
|
|
*/
|
|
function wp_omit_loading_attr_threshold( $force = false ) {
|
|
static $omit_threshold;
|
|
|
|
// This function may be called multiple times. Run the filter only once per page load.
|
|
if ( ! isset( $omit_threshold ) || $force ) {
|
|
/**
|
|
* Filters the threshold for how many of the first content media elements to not lazy-load.
|
|
*
|
|
* For these first content media elements, the `loading` attribute will be omitted. By default, this is the case
|
|
* for only the very first content media element.
|
|
*
|
|
* @since 5.9.0
|
|
* @since 6.3.0 The default threshold was changed from 1 to 3.
|
|
*
|
|
* @param int $omit_threshold The number of media elements where the `loading` attribute will not be added. Default 3.
|
|
*/
|
|
$omit_threshold = apply_filters( 'wp_omit_loading_attr_threshold', 3 );
|
|
}
|
|
|
|
return $omit_threshold;
|
|
}
|
|
|
|
/**
|
|
* Increases an internal content media count variable.
|
|
*
|
|
* @since 5.9.0
|
|
* @access private
|
|
*
|
|
* @param int $amount Optional. Amount to increase by. Default 1.
|
|
* @return int The latest content media count, after the increase.
|
|
*/
|
|
function wp_increase_content_media_count( $amount = 1 ) {
|
|
static $content_media_count = 0;
|
|
|
|
$content_media_count += $amount;
|
|
|
|
return $content_media_count;
|
|
}
|
|
|
|
/**
|
|
* Determines whether to add `fetchpriority='high'` to loading attributes.
|
|
*
|
|
* @since 6.3.0
|
|
* @access private
|
|
*
|
|
* @param array $loading_attrs Array of the loading optimization attributes for the element.
|
|
* @param string $tag_name The tag name.
|
|
* @param array $attr Array of the attributes for the element.
|
|
* @return array Updated loading optimization attributes for the element.
|
|
*/
|
|
function wp_maybe_add_fetchpriority_high_attr( $loading_attrs, $tag_name, $attr ) {
|
|
// For now, adding `fetchpriority="high"` is only supported for images.
|
|
if ( 'img' !== $tag_name ) {
|
|
return $loading_attrs;
|
|
}
|
|
|
|
if ( isset( $attr['fetchpriority'] ) ) {
|
|
/*
|
|
* While any `fetchpriority` value could be set in `$loading_attrs`,
|
|
* for consistency we only do it for `fetchpriority="high"` since that
|
|
* is the only possible value that WordPress core would apply on its
|
|
* own.
|
|
*/
|
|
if ( 'high' === $attr['fetchpriority'] ) {
|
|
$loading_attrs['fetchpriority'] = 'high';
|
|
wp_high_priority_element_flag( false );
|
|
}
|
|
|
|
return $loading_attrs;
|
|
}
|
|
|
|
// Lazy-loading and `fetchpriority="high"` are mutually exclusive.
|
|
if ( isset( $loading_attrs['loading'] ) && 'lazy' === $loading_attrs['loading'] ) {
|
|
return $loading_attrs;
|
|
}
|
|
|
|
if ( ! wp_high_priority_element_flag() ) {
|
|
return $loading_attrs;
|
|
}
|
|
|
|
/**
|
|
* Filters the minimum square-pixels threshold for an image to be eligible as the high-priority image.
|
|
*
|
|
* @since 6.3.0
|
|
*
|
|
* @param int $threshold Minimum square-pixels threshold. Default 50000.
|
|
*/
|
|
$wp_min_priority_img_pixels = apply_filters( 'wp_min_priority_img_pixels', 50000 );
|
|
|
|
if ( $wp_min_priority_img_pixels <= $attr['width'] * $attr['height'] ) {
|
|
$loading_attrs['fetchpriority'] = 'high';
|
|
wp_high_priority_element_flag( false );
|
|
}
|
|
|
|
return $loading_attrs;
|
|
}
|
|
|
|
/**
|
|
* Accesses a flag that indicates if an element is a possible candidate for `fetchpriority='high'`.
|
|
*
|
|
* @since 6.3.0
|
|
* @access private
|
|
*
|
|
* @param bool $value Optional. Used to change the static variable. Default null.
|
|
* @return bool Returns true if high-priority element was marked already, otherwise false.
|
|
*/
|
|
function wp_high_priority_element_flag( $value = null ) {
|
|
static $high_priority_element = true;
|
|
|
|
if ( is_bool( $value ) ) {
|
|
$high_priority_element = $value;
|
|
}
|
|
|
|
return $high_priority_element;
|
|
}
|