WordPress/wp-includes/media.php

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<?php
/**
* WordPress API for media display.
*
* @package WordPress
* @subpackage Media
*/
/**
* Scale 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' 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 'editor_max_image_size', that will be called
* on the calculated array for width and height, respectively. The second
* parameter will be the value that was in the $size parameter. The returned
* type for the hook is an array with the width as the first element and the
* height as the second element.
*
* @since 2.5.0
* @uses wp_constrain_dimensions() This function passes the widths and the heights.
*
* @param int $width Width of the image
* @param int $height Height of the image
* @param string|array $size Size of what the result image should be.
* @param context Could be 'display' (like in a theme) or 'edit' (like inserting into an editor)
* @return array Width and height of what the result image should resize to.
*/
function image_constrain_size_for_editor($width, $height, $size = 'medium', $context = null ) {
global $content_width, $_wp_additional_image_sizes;
if ( ! $context )
$context = is_admin() ? 'edit' : 'display';
if ( is_array($size) ) {
$max_width = $size[0];
$max_height = $size[1];
}
elseif ( $size == 'thumb' || $size == 'thumbnail' ) {
$max_width = intval(get_option('thumbnail_size_w'));
$max_height = intval(get_option('thumbnail_size_h'));
// last chance thumbnail size defaults
if ( !$max_width && !$max_height ) {
$max_width = 128;
$max_height = 96;
}
}
elseif ( $size == 'medium' ) {
$max_width = intval(get_option('medium_size_w'));
$max_height = intval(get_option('medium_size_h'));
// if no width is set, default to the theme content width if available
}
elseif ( $size == 'large' ) {
// 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 = intval(get_option('large_size_w'));
$max_height = intval(get_option('large_size_h'));
if ( intval($content_width) > 0 )
$max_width = min( intval($content_width), $max_width );
} elseif ( isset( $_wp_additional_image_sizes ) && count( $_wp_additional_image_sizes ) && in_array( $size, array_keys( $_wp_additional_image_sizes ) ) ) {
$max_width = intval( $_wp_additional_image_sizes[$size]['width'] );
$max_height = intval( $_wp_additional_image_sizes[$size]['height'] );
if ( intval($content_width) > 0 && 'edit' == $context ) // Only in admin. Assume that theme authors know what they're doing.
$max_width = min( intval($content_width), $max_width );
}
// $size == 'full' has no constraint
else {
$max_width = $width;
$max_height = $height;
}
/**
* Filter the maximum image size dimensions for the editor.
*
* @since 2.5.0
*
* @param array $max_image_size An array with the width as the first element,
* and the height as the second element.
* @param string|array $size Size of what the result image should be.
* @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 );
}
/**
* Retrieve 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 Optional. Width attribute value.
* @param int|string $height Optional. Height attribute value.
* @return string HTML attributes for width and, or height.
*/
function image_hwstring($width, $height) {
$out = '';
if ($width)
$out .= 'width="'.intval($width).'" ';
if ($height)
$out .= 'height="'.intval($height).'" ';
return $out;
}
/**
* Scale an image to fit a particular size (such as 'thumb' or 'medium').
*
* Array with image url, width, height, and whether is intermediate size, in
* that order is returned on success is returned. $is_intermediate is true if
* $url is a resized image, false if it is the original.
*
* 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 '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 returned in the function. The first element being the URL
* to the new image that was resized.
*
* @since 2.5.0
*
* @param int $id Attachment ID for image.
* @param array|string $size Optional, default is 'medium'. Size of image, either array or string.
* @return bool|array False on failure, array on success.
*/
function image_downsize($id, $size = 'medium') {
if ( !wp_attachment_is_image($id) )
return false;
/**
* Filter whether to preempt the output of image_downsize().
*
* Passing a truthy value to the filter will effectively short-circuit
* down-sizing the image, returning that value as output instead.
*
* @since 2.5.0
*
* @param bool $downsize Whether to short-circuit the image downsize. Default false.
* @param int $id Attachment ID for image.
* @param array|string $size Size of image, either array or string. Default 'medium'.
*/
if ( $out = apply_filters( 'image_downsize', false, $id, $size ) ) {
return $out;
}
$img_url = wp_get_attachment_url($id);
$meta = wp_get_attachment_metadata($id);
$width = $height = 0;
$is_intermediate = false;
$img_url_basename = wp_basename($img_url);
// try for a new style intermediate size
if ( $intermediate = image_get_intermediate_size($id, $size) ) {
$img_url = str_replace($img_url_basename, $intermediate['file'], $img_url);
$width = $intermediate['width'];
$height = $intermediate['height'];
$is_intermediate = true;
}
elseif ( $size == 'thumbnail' ) {
// fall back to the old thumbnail
if ( ($thumb_file = wp_get_attachment_thumb_file($id)) && $info = getimagesize($thumb_file) ) {
$img_url = str_replace($img_url_basename, wp_basename($thumb_file), $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;
}
/**
* Register a new image size.
*
* Cropping behavior for the image size is dependent on the value of $crop:
* 1. If false (default), images will be scaled, not cropped.
* 2. If an array in the form of array( x_crop_position, y_crop_position ):
* - x_crop_position accepts 'left' 'center', or 'right'.
* - y_crop_position accepts 'top', 'center', or 'bottom'.
* Images will be cropped to the specified dimensions within the defined crop area.
* 3. If true, images will be cropped to the specified dimensions using center positions.
*
* @since 2.9.0
*
* @param string $name Image size identifier.
* @param int $width Image width in pixels.
* @param int $height Image height in pixels.
* @param bool|array $crop Optional. Whether to crop images to specified height and width or resize.
* An array can specify positioning of the crop area. Default false.
* @return bool|array False, if no image was created. Metadata array on success.
*/
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,
);
}
/**
* Check 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 ) {
global $_wp_additional_image_sizes;
return isset( $_wp_additional_image_sizes[ $name ] );
}
/**
* Remove a new image size.
*
* @since 3.9.0
*
* @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. Whether to crop images to specified height and width or resize.
* An array can specify positioning of the crop area. Default false.
* @return bool|array False, if no image was created. Metadata array on success.
*/
function set_post_thumbnail_size( $width = 0, $height = 0, $crop = false ) {
add_image_size( 'post-thumbnail', $width, $height, $crop );
}
/**
* An <img src /> tag for an image attachment, scaling it down if requested.
*
* The filter 'get_image_tag_class' 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 '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 $size Optional. Default is 'medium'.
* @return string HTML IMG element for given image attachment
*/
function get_image_tag($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 ) . '" ' : '';
$class = 'align' . esc_attr($align) .' size-' . esc_attr($size) . ' wp-image-' . $id;
/**
* Filter 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 $size Optional. Default is 'medium'.
*/
$class = apply_filters( 'get_image_tag_class', $class, $id, $align, $size );
$html = '<img src="' . esc_attr($img_src) . '" alt="' . esc_attr($alt) . '" ' . $title . $hwstring . 'class="' . $class . '" />';
/**
* Filter 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 Alternate text.
* @param string $title Attachment title.
* @param string $align Part of the class name for aligning the image.
* @param string $size Optional. Default is 'medium'.
*/
$html = apply_filters( 'get_image_tag', $html, $id, $alt, $title, $align, $size );
return $html;
}
/**
* Calculates the new dimensions for a downsampled 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. Maximum wanted width.
* @param int $max_height Optional. Maximum wanted height.
* @return array First item is the width, the second item is the height.
*/
function wp_constrain_dimensions( $current_width, $current_height, $max_width=0, $max_height=0 ) {
if ( !$max_width and !$max_height )
return array( $current_width, $current_height );
$width_ratio = $height_ratio = 1.0;
$did_width = $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 ( intval( $current_width * $larger_ratio ) > $max_width || intval( $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, intval( $current_width * $ratio ) );
$h = max ( 1, intval( $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
if ( $did_width && $w == $max_width - 1 )
$w = $max_width; // Round it up
if ( $did_height && $h == $max_height - 1 )
$h = $max_height; // Round it up
return array( $w, $h );
}
/**
* Retrieve 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.
*
* Cropping behavior is dependent on the value of $crop:
* 1. If false (default), images will not be cropped.
* 2. If an array in the form of array( x_crop_position, y_crop_position ):
* - x_crop_position accepts 'left' 'center', or 'right'.
* - y_crop_position accepts 'top', 'center', or 'bottom'.
* Images will be cropped to the specified dimensions within the defined crop area.
* 3. If true, images will be cropped to the specified dimensions using center positions.
*
* @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 $crop Optional. Whether to crop image to specified height and width or resize.
* An array can specify positioning of the crop area. Default false.
* @return bool|array False on failure. Returned array matches parameters for `imagecopyresampled()`.
*/
function image_resize_dimensions($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;
/**
* Filter whether to preempt calculating the image resize dimensions.
*
* Passing a non-null value to 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 height and width 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;
if ( $crop ) {
// crop the largest possible portion of the original image that we can size to $dest_w x $dest_h
$aspect_ratio = $orig_w / $orig_h;
$new_w = min($dest_w, $orig_w);
$new_h = min($dest_h, $orig_h);
if ( !$new_w ) {
$new_w = intval($new_h * $aspect_ratio);
}
if ( !$new_h ) {
$new_h = intval($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 {
// don't crop, just 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 the resulting image would be the same size or larger we don't want to resize it
if ( $new_w >= $orig_w && $new_h >= $orig_h )
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 );
}
/**
* Resize an image to make a thumbnail or intermediate size.
*
* The returned array has the file size, the image width, and image height. The
* filter 'image_make_intermediate_size' 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 $crop Optional, default is false. Whether to crop image to specified height and width or resize.
* @return bool|array False, if no image was created. Metadata array on success.
*/
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;
}
/**
* Retrieve 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
* @see add_image_size()
*
* @param int $post_id Attachment ID for image.
* @param array|string $size Optional, default is 'thumbnail'. Size of image, either array or string.
* @return bool|array False on failure or array of file path, width, and height on success.
*/
function image_get_intermediate_size($post_id, $size='thumbnail') {
if ( !is_array( $imagedata = wp_get_attachment_metadata( $post_id ) ) )
return false;
// get the best one for a specified set of dimensions
if ( is_array($size) && !empty($imagedata['sizes']) ) {
foreach ( $imagedata['sizes'] as $_size => $data ) {
// already cropped to width or height; so use this size
if ( ( $data['width'] == $size[0] && $data['height'] <= $size[1] ) || ( $data['height'] == $size[1] && $data['width'] <= $size[0] ) ) {
$file = $data['file'];
list($width, $height) = image_constrain_size_for_editor( $data['width'], $data['height'], $size );
return compact( 'file', 'width', 'height' );
}
// add to lookup table: area => size
$areas[$data['width'] * $data['height']] = $_size;
}
if ( !$size || !empty($areas) ) {
// find for the smallest image not smaller than the desired size
ksort($areas);
foreach ( $areas as $_size ) {
$data = $imagedata['sizes'][$_size];
if ( $data['width'] >= $size[0] || $data['height'] >= $size[1] ) {
// Skip images with unexpectedly divergent aspect ratios (crops)
// First, we calculate what size the original image would be if constrained to a box the size of the current image in the loop
$maybe_cropped = image_resize_dimensions($imagedata['width'], $imagedata['height'], $data['width'], $data['height'], false );
// If the size doesn't match within one pixel, then it is of a different aspect ratio, so we skip it, unless it's the thumbnail size
if ( 'thumbnail' != $_size && ( !$maybe_cropped || ( $maybe_cropped[4] != $data['width'] && $maybe_cropped[4] + 1 != $data['width'] ) || ( $maybe_cropped[5] != $data['height'] && $maybe_cropped[5] + 1 != $data['height'] ) ) )
continue;
// If we're still here, then we're going to use this size
$file = $data['file'];
list($width, $height) = image_constrain_size_for_editor( $data['width'], $data['height'], $size );
return compact( 'file', 'width', 'height' );
}
}
}
}
if ( is_array($size) || empty($size) || empty($imagedata['sizes'][$size]) )
return false;
$data = $imagedata['sizes'][$size];
// include the full filesystem path of the intermediate file
if ( empty($data['path']) && !empty($data['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'] );
}
return $data;
}
/**
* Get the available image sizes
* @since 3.0.0
* @return array Returns a filtered array of image size strings
*/
function get_intermediate_image_sizes() {
global $_wp_additional_image_sizes;
$image_sizes = array('thumbnail', 'medium', 'large'); // Standard sizes
if ( isset( $_wp_additional_image_sizes ) && count( $_wp_additional_image_sizes ) )
$image_sizes = array_merge( $image_sizes, array_keys( $_wp_additional_image_sizes ) );
/**
* Filter the list of intermediate image sizes.
*
* @since 2.5.0
*
* @param array $image_sizes An array of intermediate image sizes. Defaults
* are 'thumbnail', 'medium', 'large'.
*/
return apply_filters( 'intermediate_image_sizes', $image_sizes );
}
/**
* Retrieve an image to represent an attachment.
*
* A mime icon for files, thumbnail or intermediate size for images.
*
* @since 2.5.0
*
* @param int $attachment_id Image attachment ID.
* @param string $size Optional, default is 'thumbnail'.
* @param bool $icon Optional, default is false. Whether it is an icon.
* @return bool|array Returns an array (url, width, height), or false, if no image is available.
*/
function wp_get_attachment_image_src($attachment_id, $size='thumbnail', $icon = false) {
// get a thumbnail or intermediate image if there is one
if ( $image = image_downsize($attachment_id, $size) )
return $image;
$src = false;
if ( $icon && $src = wp_mime_type_icon($attachment_id) ) {
/** 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, $height) = getimagesize($src_file);
}
if ( $src && $width && $height )
return array( $src, $width, $height );
return false;
}
/**
* Get 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
*
* @see add_image_size()
* @uses wp_get_attachment_image_src() Gets attachment file URL and dimensions
*
* @param int $attachment_id Image attachment ID.
* @param string $size Optional, default is 'thumbnail'.
* @param bool $icon Optional, default is false. Whether it is an icon.
* @param mixed $attr Optional, attributes for the image markup.
* @return string HTML img element or empty string on failure.
*/
function wp_get_attachment_image($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;
$hwstring = image_hwstring($width, $height);
if ( is_array($size) )
$size = join('x', $size);
$attachment = get_post($attachment_id);
$default_attr = array(
'src' => $src,
'class' => "attachment-$size",
'alt' => trim(strip_tags( get_post_meta($attachment_id, '_wp_attachment_image_alt', true) )), // Use Alt field first
);
if ( empty($default_attr['alt']) )
$default_attr['alt'] = trim(strip_tags( $attachment->post_excerpt )); // If not, Use the Caption
if ( empty($default_attr['alt']) )
$default_attr['alt'] = trim(strip_tags( $attachment->post_title )); // Finally, use the title
$attr = wp_parse_args($attr, $default_attr);
/**
* Filter the list of attachment image attributes.
*
* @since 2.8.0
*
* @param mixed $attr Attributes for the image markup.
* @param int $attachment_id Image attachment ID.
*/
$attr = apply_filters( 'wp_get_attachment_image_attributes', $attr, $attachment );
$attr = array_map( 'esc_attr', $attr );
$html = rtrim("<img $hwstring");
foreach ( $attr as $name => $value ) {
$html .= " $name=" . '"' . $value . '"';
}
$html .= ' />';
}
return $html;
}
/**
* Adds a 'wp-post-image' class to post thumbnails
* Uses the begin_fetch_post_thumbnail_html and end_fetch_post_thumbnail_html action hooks to
* dynamically add/remove itself so as to only filter post thumbnails
*
* @since 2.9.0
* @param array $attr Attributes including src, class, alt, title
* @return array
*/
function _wp_post_thumbnail_class_filter( $attr ) {
$attr['class'] .= ' wp-post-image';
return $attr;
}
/**
* Adds _wp_post_thumbnail_class_filter to the wp_get_attachment_image_attributes filter
*
* @since 2.9.0
*/
function _wp_post_thumbnail_class_filter_add( $attr ) {
add_filter( 'wp_get_attachment_image_attributes', '_wp_post_thumbnail_class_filter' );
}
/**
* Removes _wp_post_thumbnail_class_filter from the wp_get_attachment_image_attributes filter
*
* @since 2.9.0
*/
function _wp_post_thumbnail_class_filter_remove( $attr ) {
remove_filter( 'wp_get_attachment_image_attributes', '_wp_post_thumbnail_class_filter' );
}
add_shortcode('wp_caption', 'img_caption_shortcode');
add_shortcode('caption', 'img_caption_shortcode');
/**
* The Caption shortcode.
*
* Allows a plugin to replace the content that would otherwise be returned. The
* filter is 'img_caption_shortcode' and passes an empty string, the attr
* parameter and the content parameter values.
*
* The supported attributes for the shortcode are 'id', 'align', 'width', and
* 'caption'.
*
* @since 2.6.0
*
* @param array $attr {
* Attributes of the caption shortcode.
*
* @type string $id ID of the div element for the caption.
* @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.
* @return string HTML content to display the caption.
*/
function img_caption_shortcode( $attr, $content = null ) {
// 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] );
}
}
/**
* Filter 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 ( $output != '' )
return $output;
$atts = shortcode_atts( array(
'id' => '',
'align' => 'alignnone',
'width' => '',
'caption' => '',
'class' => '',
), $attr, 'caption' );
$atts['width'] = (int) $atts['width'];
if ( $atts['width'] < 1 || empty( $atts['caption'] ) )
return $content;
if ( ! empty( $atts['id'] ) )
$atts['id'] = 'id="' . esc_attr( $atts['id'] ) . '" ';
$class = trim( 'wp-caption ' . $atts['align'] . ' ' . $atts['class'] );
if ( current_theme_supports( 'html5', 'caption' ) ) {
return '<figure ' . $atts['id'] . 'style="width: ' . (int) $atts['width'] . 'px;" class="' . esc_attr( $class ) . '">'
. do_shortcode( $content ) . '<figcaption class="wp-caption-text">' . $atts['caption'] . '</figcaption></figure>';
}
$caption_width = 10 + $atts['width'];
/**
* Filter 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 $caption_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', $caption_width, $atts, $content );
$style = '';
if ( $caption_width )
$style = 'style="width: ' . (int) $caption_width . 'px" ';
return '<div ' . $atts['id'] . $style . 'class="' . esc_attr( $class ) . '">'
. do_shortcode( $content ) . '<p class="wp-caption-text">' . $atts['caption'] . '</p></div>';
}
add_shortcode('gallery', 'gallery_shortcode');
/**
* The Gallery shortcode.
*
* This implements the functionality of the Gallery Shortcode for displaying
* WordPress images on a post.
*
* @since 2.5.0
*
* @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 $size Size of the images to display. 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'];
}
/**
* Filter 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
*
* @see gallery_shortcode()
*
* @param string $output The gallery output. Default empty.
* @param array $attr Attributes of the gallery shortcode.
*/
$output = apply_filters( 'post_gallery', '', $attr );
if ( $output != '' ) {
return $output;
}
// We're trusting author input, so let's at least make sure it looks like a valid orderby statement
if ( isset( $attr['orderby'] ) ) {
$attr['orderby'] = sanitize_sql_orderby( $attr['orderby'] );
if ( ! $attr['orderby'] ) {
unset( $attr['orderby'] );
}
}
$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 = intval( $atts['id'] );
if ( 'RAND' == $atts['order'] ) {
$atts['orderby'] = 'none';
}
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'] ) ) {
$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 {
$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( $attachments ) ) {
return '';
}
if ( is_feed() ) {
$output = "\n";
foreach ( $attachments as $att_id => $attachment ) {
$output .= wp_get_attachment_link( $att_id, $atts['size'], true ) . "\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 = intval( $atts['columns'] );
$itemwidth = $columns > 0 ? floor(100/$columns) : 100;
$float = is_rtl() ? 'right' : 'left';
$selector = "gallery-{$instance}";
$gallery_style = '';
/**
* Filter 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 ) ) {
$gallery_style = "
<style type='text/css'>
#{$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( $atts['size'] );
$gallery_div = "<div id='$selector' class='gallery galleryid-{$id} gallery-columns-{$columns} gallery-size-{$size_class}'>";
/**
* Filter the default gallery shortcode CSS styles.
*
* @since 2.5.0
*
* @param string $gallery_style Default gallery shortcode CSS styles.
* @param string $gallery_div 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 ) {
if ( ! empty( $atts['link'] ) && 'file' === $atts['link'] ) {
$image_output = wp_get_attachment_link( $id, $atts['size'], false, false );
} elseif ( ! empty( $atts['link'] ) && 'none' === $atts['link'] ) {
$image_output = wp_get_attachment_image( $id, $atts['size'], false );
} else {
$image_output = wp_get_attachment_link( $id, $atts['size'], true, false );
}
$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'>
" . wptexturize($attachment->post_excerpt) . "
</{$captiontag}>";
}
$output .= "</{$itemtag}>";
if ( ! $html5 && $columns > 0 && ++$i % $columns == 0 ) {
$output .= '<br style="clear: both" />';
}
}
if ( ! $html5 && $columns > 0 && $i % $columns !== 0 ) {
$output .= "
<br style='clear: both' />";
}
$output .= "
</div>\n";
return $output;
}
/**
* Output 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.image ) { #>
<img src="{{ data.thumb.src }}"/>
<# } #>
<div class="wp-playlist-caption">
<span class="wp-playlist-item-meta wp-playlist-item-title">&#8220;{{ data.title }}&#8221;</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 { #>
<span class="wp-playlist-item-title">&#8220;{{{ data.title }}}&#8221;</span>
<# if ( data.artists && data.meta.artist ) { #>
<span class="wp-playlist-item-artist"> &mdash; {{ data.meta.artist }}</span>
<# } #>
<# } #>
</a>
<# if ( data.meta.length_formatted ) { #>
<div class="wp-playlist-item-length">{{ data.meta.length_formatted }}</div>
<# } #>
</div>
</script>
<?php
}
/**
* Output and enqueue 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 );
}
add_action( 'wp_playlist_scripts', 'wp_playlist_scripts' );
/**
* The playlist shortcode.
*
* 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
*
* @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', or 'RAND'. 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'];
}
/**
* Filter the playlist output.
*
* Passing a non-empty value to the filter will short-circuit generation
* of the default playlist output, returning the passed value instead.
*
* @since 3.9.0
*
* @param string $output Playlist output. Default empty.
* @param array $attr An array of shortcode attributes.
*/
$output = apply_filters( 'post_playlist', '', $attr );
if ( $output != '' ) {
return $output;
}
/*
* We're trusting author input, so let's at least make sure it looks
* like a valid orderby statement.
*/
if ( isset( $attr['orderby'] ) ) {
$attr['orderby'] = sanitize_sql_orderby( $attr['orderby'] );
if ( ! $attr['orderby'] )
unset( $attr['orderby'] );
}
$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 = intval( $atts['id'] );
if ( 'RAND' == $atts['order'] ) {
$atts['orderby'] = 'none';
}
$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( $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 );
$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 ) {
/**
* Print and enqueue 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, '"';
else:
echo ' style="visibility: hidden"';
endif; ?>></<?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"><?php echo json_encode( $data ) ?></script>
</div>
<?php
return ob_get_clean();
}
add_shortcode( 'playlist', 'wp_playlist_shortcode' );
/**
* Provide a No-JS Flash fallback as a last resort for audio / video
*
* @since 3.6.0
*
* @param string $url
* @return string Fallback HTML
*/
function wp_mediaelement_fallback( $url ) {
/**
* Filter 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 );
}
/**
* Return a filtered list of WP-supported audio formats.
*
* @since 3.6.0
* @return array
*/
function wp_get_audio_extensions() {
/**
* Filter the list of supported audio formats.
*
* @since 3.6.0
*
* @param array $extensions An array of support audio formats. Defaults are
* 'mp3', 'ogg', 'wma', 'm4a', 'wav'.
*/
return apply_filters( 'wp_audio_extensions', array( 'mp3', 'ogg', 'wma', 'm4a', 'wav' ) );
}
/**
* Return 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 The context. Accepts 'edit', 'display'. Default 'display'.
* @return array 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' );
}
/**
* Filter 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 );
}
/**
* The Audio shortcode.
*
* 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 empty.
* @type string $class The 'class' attribute for the `<audio>` element. Default 'wp-audio-shortcode'.
* @type string $id The 'id' attribute for the `<audio>` element. Default 'audio-{$post_id}-{$instances}'.
* @type string $style The 'style' attribute for the `<audio>` element. Default 'width: 100%'.
* }
* @param string $content Optional. Shortcode content.
* @return string HTML content to display audio.
*/
function wp_audio_shortcode( $attr, $content = '' ) {
$post_id = get_post() ? get_the_ID() : 0;
static $instances = 0;
$instances++;
/**
* Filter 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 wp_audio_shortcode()
* @param string $content Shortcode content.
* @param int $instances Unique numeric ID of this audio shortcode instance.
*/
$override = apply_filters( 'wp_audio_shortcode_override', '', $attr, $content, $instances );
if ( '' !== $override ) {
return $override;
}
$audio = null;
$default_types = wp_get_audio_extensions();
$defaults_atts = array(
'src' => '',
'loop' => '',
'autoplay' => '',
'preload' => 'none'
);
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 ) ) {
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' );
}
/**
* Filter 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' );
}
/**
* Filter the class attribute for the audio shortcode output container.
*
* @since 3.6.0
*
* @param string $class CSS class or list of space-separated classes.
*/
$html_atts = array(
'class' => apply_filters( 'wp_audio_shortcode_class', 'wp-audio-shortcode' ),
'id' => sprintf( 'audio-%d-%d', $post_id, $instances ),
'loop' => $atts['loop'],
'autoplay' => $atts['autoplay'],
'preload' => $atts['preload'],
'style' => 'width: 100%; visibility: hidden;',
);
// 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 === $instances ) {
$html .= "<!--[if lt IE 9]><script>document.createElement('audio');</script><![endif]-->\n";
}
$html .= sprintf( '<audio %s controls="controls">', join( ' ', $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( '_', $instances, $atts[ $fallback ] );
$html .= sprintf( $source, $type['type'], esc_url( $url ) );
}
}
if ( 'mediaelement' === $library ) {
$html .= wp_mediaelement_fallback( $fileurl );
}
$html .= '</audio>';
/**
* Filter 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' );
/**
* Return a filtered list of WP-supported video formats
*
* @since 3.6.0
* @return array
*/
function wp_get_video_extensions() {
/**
* Filter the list of supported video formats.
*
* @since 3.6.0
*
* @param array $extensions An array of support video formats. Defaults are
* 'mp4', 'm4v', 'webm', 'ogv', 'wmv', 'flv'.
*/
return apply_filters( 'wp_video_extensions', array( 'mp4', 'm4v', 'webm', 'ogv', 'wmv', 'flv' ) );
}
/**
* The Video shortcode.
*
* This implements the functionality of the Video Shortcode for displaying
* WordPress mp4s in a post.
*
* @since 3.6.0
*
* @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 $preload The 'preload' attribute for the `<video>` element.
* Default 'metadata'.
* @type string $class The 'class' attribute for the `<video>` element.
* Default 'wp-video-shortcode'.
* @type string $id The 'id' attribute for the `<video>` element.
* Default 'video-{$post_id}-{$instances}'.
* }
* @param string $content Optional. Shortcode content.
* @return string HTML content to display video.
*/
function wp_video_shortcode( $attr, $content = '' ) {
global $content_width;
$post_id = get_post() ? get_the_ID() : 0;
static $instances = 0;
$instances++;
/**
* Filter 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 video shortcode.
* @param string $content Video shortcode content.
* @param int $instances Unique numeric ID of this video shortcode instance.
*/
$override = apply_filters( 'wp_video_shortcode_override', '', $attr, $content, $instances );
if ( '' !== $override ) {
return $override;
}
$video = null;
$default_types = wp_get_video_extensions();
$defaults_atts = array(
'src' => '',
'poster' => '',
'loop' => '',
'autoplay' => '',
'preload' => 'metadata',
'width' => 640,
'height' => 360,
);
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;
}
}
$yt_pattern = '#^https?://(?:www\.)?(?:youtube\.com/watch|youtu\.be/)#';
$primary = false;
if ( ! empty( $atts['src'] ) ) {
if ( ! preg_match( $yt_pattern, $atts['src'] ) ) {
$type = wp_check_filetype( $atts['src'], wp_get_mime_types() );
if ( ! in_array( strtolower( $type['ext'] ), $default_types ) ) {
return sprintf( '<a class="wp-embedded-video" 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 ) {
$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' );
}
/**
* Filter 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' );
}
/**
* Filter the class attribute for the video shortcode output container.
*
* @since 3.6.0
*
* @param string $class CSS class or list of space-separated classes.
*/
$html_atts = array(
'class' => apply_filters( 'wp_video_shortcode_class', 'wp-video-shortcode' ),
'id' => sprintf( 'video-%d-%d', $post_id, $instances ),
'width' => absint( $atts['width'] ),
'height' => absint( $atts['height'] ),
'poster' => esc_url( $atts['poster'] ),
'loop' => $atts['loop'],
'autoplay' => $atts['autoplay'],
'preload' => $atts['preload'],
);
// These ones should just be omitted altogether if they are blank
foreach ( array( 'poster', '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 === $instances ) {
$html .= "<!--[if lt IE 9]><script>document.createElement('video');</script><![endif]-->\n";
}
$html .= sprintf( '<video %s controls="controls">', join( ' ', $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 && preg_match( $yt_pattern, $atts['src'] ) ) {
$type = array( 'type' => 'video/youtube' );
} else {
$type = wp_check_filetype( $atts[ $fallback ], wp_get_mime_types() );
}
$url = add_query_arg( '_', $instances, $atts[ $fallback ] );
$html .= sprintf( $source, $type['type'], esc_url( $url ) );
}
}
if ( ! empty( $content ) ) {
if ( false !== strpos( $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 = $height_rule = '';
if ( ! empty( $atts['width'] ) ) {
$width_rule = sprintf( ' width: %dpx;', $atts['width'] );
}
if ( ! empty( $atts['height'] ) ) {
$height_rule = sprintf( ' height: %dpx;', $atts['height'] );
} else {
$height_rule = ' height: auto;';
}
$output = sprintf( '<div style="max-width: 100%%;%s%s" class="wp-video">%s</div>', $width_rule, $height_rule, $html );
/**
* Filter 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' );
/**
* Display previous image link that has the same post parent.
*
* @since 2.5.0
* @param string $size Optional, default is 'thumbnail'. Size of image, either array or string. 0 or 'none' will default to post_title or $text;
* @param string $text Optional, default is false. If included, link will reflect $text variable.
* @return string HTML content.
*/
function previous_image_link($size = 'thumbnail', $text = false) {
adjacent_image_link(true, $size, $text);
}
/**
* Display next image link that has the same post parent.
*
* @since 2.5.0
* @param string $size Optional, default is 'thumbnail'. Size of image, either array or string. 0 or 'none' will default to post_title or $text;
* @param string $text Optional, default is false. If included, link will reflect $text variable.
* @return string HTML content.
*/
function next_image_link($size = 'thumbnail', $text = false) {
adjacent_image_link(false, $size, $text);
}
/**
* Display 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 $prev Optional. Default is true to display previous link, false for next.
*/
function adjacent_image_link($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 ( $attachment->ID == $post->ID ) {
break;
}
}
$output = '';
$attachment_id = 0;
if ( $attachments ) {
$k = $prev ? $k - 1 : $k + 1;
if ( isset( $attachments[ $k ] ) ) {
$attachment_id = $attachments[ $k ]->ID;
$output = wp_get_attachment_link( $attachment_id, $size, true, false, $text );
}
}
$adjacent = $prev ? 'previous' : 'next';
/**
* Filter the adjacent image link.
*
* The dynamic portion of the hook name, $adjacent, refers to the type of adjacency,
* either 'next', or 'previous'.
*
* @since 3.5.0
*
* @param string $output Adjacent image HTML markup.
* @param int $attachment_id Attachment ID
* @param string $size Image size.
* @param string $text Link text.
*/
echo apply_filters( "{$adjacent}_image_link", $output, $attachment_id, $size, $text );
}
/**
* Retrieve taxonomies attached to the attachment.
*
* @since 2.5.0
*
* @param int|array|object $attachment Attachment ID, Attachment data array, or Attachment data object.
* @return array Empty array on failure. List of taxonomies on success.
*/
function get_attachment_taxonomies($attachment) {
if ( is_int( $attachment ) )
$attachment = get_post($attachment);
else if ( is_array($attachment) )
$attachment = (object) $attachment;
if ( ! is_object($attachment) )
return array();
$filename = basename($attachment->guid);
$objects = array('attachment');
if ( false !== strpos($filename, '.') )
$objects[] = 'attachment:' . substr($filename, strrpos($filename, '.') + 1);
if ( !empty($attachment->post_mime_type) ) {
$objects[] = 'attachment:' . $attachment->post_mime_type;
if ( false !== strpos($attachment->post_mime_type, '/') )
foreach ( explode('/', $attachment->post_mime_type) as $token )
if ( !empty($token) )
$objects[] = "attachment:$token";
}
$taxonomies = array();
foreach ( $objects as $object )
if ( $taxes = get_object_taxonomies($object) )
$taxonomies = array_merge($taxonomies, $taxes);
return array_unique($taxonomies);
}
/**
* Return all of the taxonomy names that are registered for attachments.
*
* Handles mime-type-specific taxonomies such as attachment:image and attachment:video.
*
* @since 3.5.0
* @see get_attachment_taxonomies()
* @uses get_taxonomies()
*
* @param string $output The type of output to return, either taxonomy 'names' or 'objects'. 'names' is the default.
* @return array The names of all taxonomy of $object_type.
*/
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 || 0 === strpos( $object_type, 'attachment:' ) ) {
if ( 'names' == $output )
$taxonomies[] = $taxonomy->name;
else
$taxonomies[ $taxonomy->name ] = $taxonomy;
break;
}
}
}
return $taxonomies;
}
/**
* Create new GD image resource with transparency support
* @TODO: Deprecate if possible.
*
* @since 2.9.0
*
* @param int $width Image width
* @param int $height Image height
* @return image resource
*/
function wp_imagecreatetruecolor($width, $height) {
$img = imagecreatetruecolor($width, $height);
if ( is_resource($img) && function_exists('imagealphablending') && function_exists('imagesavealpha') ) {
imagealphablending($img, false);
imagesavealpha($img, true);
}
return $img;
}
/**
* Register an embed handler. This function should probably only be used for sites that do not support oEmbed.
*
* @since 2.9.0
* @see WP_Embed::register_handler()
*/
function wp_embed_register_handler( $id, $regex, $callback, $priority = 10 ) {
global $wp_embed;
$wp_embed->register_handler( $id, $regex, $callback, $priority );
}
/**
* Unregister a previously registered embed handler.
*
* @since 2.9.0
* @see WP_Embed::unregister_handler()
*/
function wp_embed_unregister_handler( $id, $priority = 10 ) {
global $wp_embed;
$wp_embed->unregister_handler( $id, $priority );
}
/**
* Create default array of embed parameters.
*
* The width defaults to the content width as specified by the theme. If the
* theme does not specify a content width, then 500px is used.
*
* The default height is 1.5 times the width, or 1000px, whichever is smaller.
*
* The 'embed_defaults' filter can be used to adjust either of these values.
*
* @since 2.9.0
*
* @param string $url Optional. The URL that should be embedded. Default empty.
*
* @return array Default embed parameters.
*/
function wp_embed_defaults( $url = '' ) {
if ( ! empty( $GLOBALS['content_width'] ) )
$width = (int) $GLOBALS['content_width'];
if ( empty( $width ) )
$width = 500;
$height = min( ceil( $width * 1.5 ), 1000 );
/**
* Filter the default array of embed dimensions.
*
* @since 2.9.0
*
* @param int $width Width of the embed in pixels.
* @param int $height Height of the embed in pixels.
* @param string $url The URL that should be embedded.
*/
return apply_filters( 'embed_defaults', compact( 'width', 'height' ), $url );
}
/**
* Based on a supplied width/height example, return the biggest possible dimensions based on the max width/height.
*
* @since 2.9.0
* @uses wp_constrain_dimensions() This function passes the widths and the heights.
*
* @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 array The maximum possible width and height based on the example ratio.
*/
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 );
}
/**
* Attempts to fetch the embed HTML for a provided URL using oEmbed.
*
* @since 2.9.0
* @see WP_oEmbed
*
* @uses _wp_oembed_get_object()
* @uses WP_oEmbed::get_html()
*
* @param string $url The URL that should be embedded.
* @param array $args Additional arguments and parameters.
* @return bool|string False on failure or the embed HTML on success.
*/
function wp_oembed_get( $url, $args = '' ) {
require_once( ABSPATH . WPINC . '/class-oembed.php' );
$oembed = _wp_oembed_get_object();
return $oembed->get_html( $url, $args );
}
/**
* Adds a URL format and oEmbed provider URL pair.
*
* @since 2.9.0
* @see WP_oEmbed
*
* @uses _wp_oembed_get_object()
*
* @param string $format The format of URL that this provider can handle. You can use asterisks as wildcards.
* @param string $provider The URL to the oEmbed provider.
* @param boolean $regex Whether the $format parameter is in a regex format.
*/
function wp_oembed_add_provider( $format, $provider, $regex = false ) {
require_once( ABSPATH . WPINC . '/class-oembed.php' );
if ( did_action( 'plugins_loaded' ) ) {
$oembed = _wp_oembed_get_object();
$oembed->providers[$format] = array( $provider, $regex );
} else {
WP_oEmbed::_add_provider_early( $format, $provider, $regex );
}
}
/**
* Removes an oEmbed provider.
*
* @since 3.5.0
* @see WP_oEmbed
*
* @uses _wp_oembed_get_object()
*
* @param string $format The URL format for the oEmbed provider to remove.
*/
function wp_oembed_remove_provider( $format ) {
require_once( ABSPATH . WPINC . '/class-oembed.php' );
if ( did_action( 'plugins_loaded' ) ) {
$oembed = _wp_oembed_get_object();
if ( isset( $oembed->providers[ $format ] ) ) {
unset( $oembed->providers[ $format ] );
return true;
}
} else {
WP_oEmbed::_remove_provider_early( $format );
}
return false;
}
/**
* Determines if default embed handlers should be loaded.
*
* Checks to make sure that the embeds library hasn't already been loaded. If
* it hasn't, then it will load the embeds library.
*
* @since 2.9.0
*/
function wp_maybe_load_embeds() {
/**
* Filter whether to load the default embed handlers.
*
* Returning a falsey value will prevent loading the default embed handlers.
*
* @since 2.9.0
*
* @param bool $maybe_load_embeds Whether to load the embeds library. Default true.
*/
if ( ! apply_filters( 'load_default_embeds', true ) ) {
return;
}
wp_embed_register_handler( 'youtube_embed_url', '#https?://(www.)?youtube\.com/embed/([^/]+)#i', 'wp_embed_handler_youtube' );
wp_embed_register_handler( 'googlevideo', '#http://video\.google\.([A-Za-z.]{2,5})/videoplay\?docid=([\d-]+)(.*?)#i', 'wp_embed_handler_googlevideo' );
/**
* Filter the audio embed handler callback.
*
* @since 3.6.0
*
* @param callback $handler Audio embed handler callback function.
*/
wp_embed_register_handler( 'audio', '#^https?://.+?\.(' . join( '|', wp_get_audio_extensions() ) . ')$#i', apply_filters( 'wp_audio_embed_handler', 'wp_embed_handler_audio' ), 9999 );
/**
* Filter the video embed handler callback.
*
* @since 3.6.0
*
* @param callback $handler Video embed handler callback function.
*/
wp_embed_register_handler( 'video', '#^https?://.+?\.(' . join( '|', wp_get_video_extensions() ) . ')$#i', apply_filters( 'wp_video_embed_handler', 'wp_embed_handler_video' ), 9999 );
}
/**
* The Google Video embed handler callback. Google Video does not support oEmbed.
*
* @see WP_Embed::register_handler()
* @see WP_Embed::shortcode()
*
* @param array $matches The regex matches from the provided regex when calling {@link wp_embed_register_handler()}.
* @param array $attr Embed attributes.
* @param string $url The original URL that was matched by the regex.
* @param array $rawattr The original unmodified attributes.
* @return string The embed HTML.
*/
function wp_embed_handler_googlevideo( $matches, $attr, $url, $rawattr ) {
// If the user supplied a fixed width AND height, use it
if ( !empty($rawattr['width']) && !empty($rawattr['height']) ) {
$width = (int) $rawattr['width'];
$height = (int) $rawattr['height'];
} else {
list( $width, $height ) = wp_expand_dimensions( 425, 344, $attr['width'], $attr['height'] );
}
/**
* Filter the Google Video embed output.
*
* @since 2.9.0
*
* @param string $html Google Video HTML embed markup.
* @param array $matches The regex matches from the provided regex.
* @param array $attr An array of embed attributes.
* @param string $url The original URL that was matched by the regex.
* @param array $rawattr The original unmodified attributes.
*/
return apply_filters( 'embed_googlevideo', '<embed type="application/x-shockwave-flash" src="http://video.google.com/googleplayer.swf?docid=' . esc_attr($matches[2]) . '&amp;hl=en&amp;fs=true" style="width:' . esc_attr($width) . 'px;height:' . esc_attr($height) . 'px" allowFullScreen="true" allowScriptAccess="always" />', $matches, $attr, $url, $rawattr );
}
/**
* YouTube embed handler callback.
*
* Catches URLs that can be parsed but aren't supported by oEmbed.
*
* @since 4.0.0
*
* @param array $matches The regex matches from the provided regex when calling
* {@link wp_embed_register_handler()}.
* @param array $attr Embed attributes.
* @param string $url The original URL that was matched by the regex.
* @param array $rawattr The original unmodified attributes.
* @return string The embed HTML.
*/
function wp_embed_handler_youtube( $matches, $attr, $url, $rawattr ) {
global $wp_embed;
$embed = $wp_embed->autoembed( "https://youtube.com/watch?v={$matches[2]}" );
/**
* Filter the YoutTube embed output.
*
* @since 4.0.0
*
* @see wp_embed_handler_youtube()
*
* @param string $embed YouTube embed output.
* @param array $attr An array of embed attributes.
* @param string $url The original URL that was matched by the regex.
* @param array $rawattr The original unmodified attributes.
*/
return apply_filters( 'wp_embed_handler_youtube', $embed, $attr, $url, $rawattr );
}
/**
* Audio embed handler callback.
*
* @since 3.6.0
*
* @param array $matches The regex matches from the provided regex when calling {@link wp_embed_register_handler()}.
* @param array $attr Embed attributes.
* @param string $url The original URL that was matched by the regex.
* @param array $rawattr The original unmodified attributes.
* @return string The embed HTML.
*/
function wp_embed_handler_audio( $matches, $attr, $url, $rawattr ) {
$audio = sprintf( '[audio src="%s" /]', esc_url( $url ) );
/**
* Filter the audio embed output.
*
* @since 3.6.0
*
* @param string $audio Audio embed output.
* @param array $attr An array of embed attributes.
* @param string $url The original URL that was matched by the regex.
* @param array $rawattr The original unmodified attributes.
*/
return apply_filters( 'wp_embed_handler_audio', $audio, $attr, $url, $rawattr );
}
/**
* Video embed handler callback.
*
* @since 3.6.0
*
* @param array $matches The regex matches from the provided regex when calling {@link wp_embed_register_handler()}.
* @param array $attr Embed attributes.
* @param string $url The original URL that was matched by the regex.
* @param array $rawattr The original unmodified attributes.
* @return string The embed HTML.
*/
function wp_embed_handler_video( $matches, $attr, $url, $rawattr ) {
$dimensions = '';
if ( ! empty( $rawattr['width'] ) && ! empty( $rawattr['height'] ) ) {
$dimensions .= sprintf( 'width="%d" ', (int) $rawattr['width'] );
$dimensions .= sprintf( 'height="%d" ', (int) $rawattr['height'] );
}
$video = sprintf( '[video %s src="%s" /]', $dimensions, esc_url( $url ) );
/**
* Filter the video embed output.
*
* @since 3.6.0
*
* @param string $video Video embed output.
* @param array $attr An array of embed attributes.
* @param string $url The original URL that was matched by the regex.
* @param array $rawattr The original unmodified attributes.
*/
return apply_filters( 'wp_embed_handler_video', $video, $attr, $url, $rawattr );
}
/**
* Converts a shorthand byte value to an integer byte value.
*
* @since 2.3.0
*
* @param string $size A shorthand byte value.
* @return int An integer byte value.
*/
function wp_convert_hr_to_bytes( $size ) {
$size = strtolower( $size );
$bytes = (int) $size;
if ( strpos( $size, 'k' ) !== false )
$bytes = intval( $size ) * 1024;
elseif ( strpos( $size, 'm' ) !== false )
$bytes = intval($size) * 1024 * 1024;
elseif ( strpos( $size, 'g' ) !== false )
$bytes = intval( $size ) * 1024 * 1024 * 1024;
return $bytes;
}
/**
* Determine 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' ) );
/**
* Filter 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
* @access public
*
* @param string $path Path to file to load
* @param array $args Additional data. Accepts { 'mime_type'=>string, 'methods'=>{string, string, ...} }
* @return WP_Image_Editor|WP_Error
*/
function wp_get_image_editor( $path, $args = array() ) {
$args['path'] = $path;
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'];
}
$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
* @access public
*
* @param string|array $args Array of requirements. Accepts { 'mime_type'=>string, 'methods'=>{string, string, ...} }
* @return boolean 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.
*
* @since 3.5.0
* @access private
*
* @param array $args Additional data. Accepts { 'mime_type'=>string, 'methods'=>{string, string, ...} }
* @return string|bool 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';
/**
* Filter the list of image editing library classes.
*
* @since 3.5.0
*
* @param array $image_editors List of available image editors. 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' ) );
foreach ( $implementations as $implementation ) {
if ( ! call_user_func( array( $implementation, 'test' ), $args ) )
continue;
if ( isset( $args['mime_type'] ) &&
! call_user_func(
array( $implementation, 'supports_mime_type' ),
$args['mime_type'] ) ) {
continue;
}
if ( isset( $args['methods'] ) &&
array_diff( $args['methods'], get_class_methods( $implementation ) ) ) {
continue;
}
return $implementation;
}
return false;
}
/**
* Prints default plupload arguments.
*
* @since 3.4.0
*/
function wp_plupload_default_settings() {
global $wp_scripts;
$data = $wp_scripts->get_data( 'wp-plupload', 'data' );
if ( $data && false !== strpos( $data, '_wpPluploadSettings' ) )
return;
$max_upload_size = wp_max_upload_size();
$defaults = array(
'runtimes' => 'html5,flash,silverlight,html4',
'file_data_name' => 'async-upload', // key passed to $_FILE.
'url' => admin_url( 'async-upload.php', 'relative' ),
'flash_swf_url' => includes_url( 'js/plupload/plupload.flash.swf' ),
'silverlight_xap_url' => includes_url( 'js/plupload/plupload.silverlight.xap' ),
'filters' => array(
'max_file_size' => $max_upload_size . 'b',
),
);
/**
* Filter 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',
);
/**
* Filter 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 = ' . json_encode( $settings ) . ';';
if ( $data )
$script = "$data\n$script";
$wp_scripts->add_data( 'wp-plupload', 'data', $script );
}
add_action( 'customize_controls_enqueue_scripts', 'wp_plupload_default_settings' );
/**
* 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 mixed $attachment Attachment ID or object.
* @return array Array of attachment details.
*/
function wp_prepare_attachment_for_js( $attachment ) {
if ( ! $attachment = get_post( $attachment ) )
return;
if ( 'attachment' != $attachment->post_type )
return;
$meta = wp_get_attachment_metadata( $attachment->ID );
if ( false !== strpos( $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 );
$response = array(
'id' => $attachment->ID,
'title' => $attachment->post_title,
'filename' => wp_basename( $attachment->guid ),
'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 ),
'dateFormatted' => mysql2date( get_option('date_format'), $attachment->post_date ),
'nonces' => array(
'update' => false,
'delete' => false,
'edit' => false
),
'editLink' => false,
'meta' => false,
);
$author = new WP_User( $attachment->post_author );
$response['authorName'] = $author->display_name;
if ( $attachment->post_parent ) {
$post_parent = get_post( $attachment->post_parent );
$parent_type = get_post_type_object( $post_parent->post_type );
if ( $parent_type && $parent_type->show_ui && current_user_can( 'edit_post', $attachment->post_parent ) ) {
$response['uploadedToLink'] = get_edit_post_link( $attachment->post_parent, 'raw' );
}
$response['uploadedToTitle'] = $post_parent->post_title ? $post_parent->post_title : __( '(No title)' );
}
$attached_file = get_attached_file( $attachment->ID );
if ( file_exists( $attached_file ) ) {
$bytes = filesize( $attached_file );
$response['filesizeInBytes'] = $bytes;
$response['filesizeHumanReadable'] = size_format( $bytes );
}
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 ) {
$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 */
if ( $downsize = apply_filters( 'image_downsize', false, $attachment->ID, $size ) ) {
if ( ! $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 ] ) ) {
if ( ! isset( $base_url ) )
$base_url = str_replace( wp_basename( $attachment_url ), '', $attachment_url );
// 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',
);
}
}
$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, array( 'sizes' => $sizes ), $sizes['full'] );
} elseif ( $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['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 );
$width = 48;
$height = 64;
$response['image'] = compact( 'src', 'width', 'height' );
$response['thumb'] = compact( 'src', 'width', 'height' );
}
}
if ( function_exists('get_compat_media_markup') )
Restore the Description field to the media UI in 3.5. We tried in vain -- a noble but ultimately failed effort -- to reduce the number of fields for attachments from four (title, caption, alt, description) to one (caption for images, title otherwise). Alternative text needed to stay for accessibility reasons, of course. Eventually title returned due to heavy plugin reliance. Description is too used by too many plugins (often times incorrectly -- the caption is more likely the proper field), hence its less-than-triumphant return today. Version 3.5 has tried to streamline media in a number of ways. Removing fields may have been too much at once, as it forced not only a user interface change, but a paradigm change as well. Finally, on upload we populate the description field with IPTC/EXIF captions, rather than the caption field. See #22768, this should be fixed. For now, Description stays. This commit also restores 'Title' attribute editing to the main tab of the Edit Image dialog. The "Title" field no longer populates title attributes for <img> tags by design (for accessibility and other purposes, see #18984). So, here is a more obvious 'workaround' for the tooltip community. Finally, this: * Cleans up the post.php attachment editor, including by showing a prettier form of the mime type. * Enables plugins to specifically hide attachment_fields_to_edit from either post.php (where you can create meta boxes) or the modal (which you may not want to clutter), for compatibility reasons. * Hides the 'Describe this file...' placeholder when a field is read-only in the modal. props nacin, helenyhou. fixes #22759. git-svn-id: http://core.svn.wordpress.org/trunk@23083 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2012-12-05 19:41:06 -05:00
$response['compat'] = get_compat_media_markup( $attachment->ID, array( 'in_modal' => true ) );
/**
* Filter the attachment data prepared for JavaScript.
*
* @since 3.5.0
*
* @param array $response Array of prepared attachment data.
* @param int|object $attachment Attachment ID or object.
* @param array $meta Array of attachment meta data.
*/
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
*/
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;
}
}
}
$has_audio = $wpdb->get_var( "
SELECT ID
FROM $wpdb->posts
WHERE post_type = 'attachment'
AND post_mime_type LIKE 'audio%'
LIMIT 1
" );
$has_video = $wpdb->get_var( "
SELECT ID
FROM $wpdb->posts
WHERE post_type = 'attachment'
AND post_mime_type LIKE 'video%'
LIMIT 1
" );
$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 ) {
$month_year->text = sprintf( __( '%1$s %2$d' ), $wp_locale->get_month( $month_year->month ), $month_year->year );
}
$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' ),
),
'post' => array(
'id' => 0,
),
'defaultProps' => $props,
'attachmentCounts' => array(
'audio' => ( $has_audio ) ? 1 : 0,
'video' => ( $has_video ) ? 1 : 0
),
'embedExts' => $exts,
'embedMimes' => $ext_mimes,
'contentWidth' => $content_width,
'months' => $months,
);
$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 ( 0 === strpos( $post->post_mime_type, 'audio/' ) ) {
$thumbnail_support = post_type_supports( 'attachment:audio', 'thumbnail' ) || current_theme_supports( 'post-thumbnails', 'attachment:audio' );
} elseif ( 0 === strpos( $post->post_mime_type, 'video/' ) ) {
$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;
}
}
$hier = $post && is_post_type_hierarchical( $post->post_type );
$strings = array(
// Generic
'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 images.' ),
// Upload
'uploadFilesTitle' => __( 'Upload Files' ),
'uploadImagesTitle' => __( 'Upload Images' ),
// Library
'mediaLibraryTitle' => __( 'Media Library' ),
'insertMediaTitle' => __( 'Insert Media' ),
'createNewGallery' => __( 'Create a new gallery' ),
'createNewPlaylist' => __( 'Create a new playlist' ),
'createNewVideoPlaylist' => __( 'Create a new video playlist' ),
'returnToLibrary' => __( '&#8592; Return to library' ),
'allMediaItems' => __( 'All media items' ),
'allMediaTypes' => __( 'All media types' ),
'allDates' => __( 'All dates' ),
'noItemsFound' => __( 'No items found.' ),
'insertIntoPost' => $hier ? __( 'Insert into page' ) : __( 'Insert into post' ),
'unattached' => __( 'Unattached' ),
'uploadedToThisPost' => $hier ? __( 'Uploaded to this page' ) : __( 'Uploaded to this post' ),
'warnDelete' => __( "You are about to permanently delete this item.\n 'Cancel' to stop, 'OK' to delete." ),
'warnBulkDelete' => __( "You are about to permanently delete these items.\n 'Cancel' to stop, 'OK' to delete." ),
'bulkActions' => __( 'Bulk Actions' ),
'bulkActionsLabel' => __( 'Select bulk action' ),
'deletePermanently' => __( 'Delete Permanently' ),
'apply' => __( 'Apply' ),
'filterByDate' => __( 'Filter by date' ),
'filterByType' => __( 'Filter by type' ),
'searchMediaLabel' => __( 'Search Media' ),
// Library Details
'attachmentDetails' => __( 'Attachment Details' ),
// From URL
'insertFromUrlTitle' => __( 'Insert from URL' ),
// Featured Images
'setFeaturedImageTitle' => __( 'Set Featured Image' ),
'setFeaturedImage' => __( 'Set featured image' ),
// Gallery
'createGalleryTitle' => __( 'Create Gallery' ),
'editGalleryTitle' => __( 'Edit Gallery' ),
'cancelGalleryTitle' => __( '&#8592; 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&hellip;' ),
'suggestedDimensions' => __( 'Suggested image dimensions:' ),
'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' => __( '&#8592; 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' => __( '&#8592; Cancel Video Playlist' ),
'insertVideoPlaylist' => __( 'Insert video playlist' ),
'updateVideoPlaylist' => __( 'Update video playlist' ),
'addToVideoPlaylist' => __( 'Add to video playlist' ),
'addToVideoPlaylistTitle' => __( 'Add to Video Playlist' ),
// Media Library
'editMetadata' => __( 'Edit Metadata' ),
'noMedia' => __( 'No media found. Try a different search.' ),
);
/**
* Filter 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 );
/**
* Filter the media view strings.
*
* @since 3.5.0
*
* @param array $strings List of media view strings.
* @param WP_Post $post Post object.
*/
$strings = apply_filters( 'media_view_strings', $strings, $post );
$strings['settings'] = $settings;
wp_localize_script( 'media-views', '_wpMediaViewsL10n', $strings );
wp_enqueue_script( 'media-editor' );
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' );
}
/**
* Retrieve 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 array Found attachments.
*/
function get_attached_media( $type, $post = 0 ) {
if ( ! $post = get_post( $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',
);
/**
* Filter 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 mixed $post Post ID or object.
*/
$args = apply_filters( 'get_attached_media_args', $args, $type, $post );
$children = get_children( $args );
/**
* Filter the list of media attached to the given post.
*
* @since 3.6.0
*
* @param array $children Associative array of media attached to the given post.
* @param string $type Mime type of the media desired.
* @param mixed $post Post ID or object.
*/
return (array) apply_filters( 'get_attached_media', $children, $type, $post );
}
/**
* Check the content blob for an <audio>, <video> <object>, <embed>, or <iframe>
*
* @since 3.6.0
*
* @param string $content A string which might contain media data.
* @param array $types array of media types: 'audio', 'video', 'object', 'embed', or 'iframe'
* @return array A list of found HTML media embeds
*/
function get_media_embedded_in_content( $content, $types = null ) {
$html = array();
$allowed_media_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 );
}
foreach ( $allowed_media_types as $tag ) {
if ( preg_match( '#' . get_tag_regex( $tag ) . '#', $content, $matches ) ) {
$html[] = $matches[0];
}
}
return $html;
}
/**
* Retrieve galleries from the passed post's content.
*
* @since 3.6.0
*
* @param int|WP_Post $post Optional. Post ID or object.
* @param bool $html Whether to return HTML or data in the array.
* @return array A list of arrays, each containing gallery data and srcs parsed
* from the expanded shortcode.
*/
function get_post_galleries( $post, $html = true ) {
if ( ! $post = get_post( $post ) )
return array();
if ( ! has_shortcode( $post->post_content, 'gallery' ) )
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();
$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];
}
$data = shortcode_parse_atts( $shortcode[3] );
$data['src'] = array_values( array_unique( $srcs ) );
$galleries[] = $data;
}
}
}
}
/**
* Filter 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 );
}
/**
* Check 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 Whether to return HTML or data.
* @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 );
/**
* Filter 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 );
}
/**
* Retrieve the image srcs from galleries from a post's content, if present
*
* @since 3.6.0
*
* @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' );
}
/**
* Check a post's content for galleries and return the image srcs for the first found gallery
*
* @since 3.6.0
*
* @param int|WP_Post $post Optional. Post ID or WP_Post object. Default is global $post.
* @return array 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 attempt 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 ) || ! $attachment_id = (int) $attachment->ID ) ) {
return;
}
$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 );
$regeneration_lock = 'wp_generating_att_' . $attachment_id;
if ( ! array_key_exists( '_wp_attachment_metadata', $_meta ) && ! get_transient( $regeneration_lock ) ) {
set_transient( $regeneration_lock, $file );
wp_update_attachment_metadata( $attachment_id, wp_generate_attachment_metadata( $attachment_id, $file ) );
delete_transient( $regeneration_lock );
}
}
}
/**
* Try to convert an attachment URL into a post ID.
*
* @since 4.0.0
*
* @global wpdb $wpdb WordPress database access abstraction object.
*
* @param string $url The URL to resolve.
* @return int The found post ID.
*/
function attachment_url_to_postid( $url ) {
global $wpdb;
$dir = wp_upload_dir();
$path = ltrim( $url, $dir['baseurl'] . '/' );
$sql = $wpdb->prepare(
"SELECT post_id FROM $wpdb->postmeta WHERE meta_key = '_wp_attached_file' AND meta_value = %s",
$path
);
$post_id = $wpdb->get_var( $sql );
if ( ! empty( $post_id ) ) {
return (int) $post_id;
}
}
/**
* Return the URls for CSS files used in an <iframe>-sandbox'd TinyMCE media view
*
* @since 4.0.0
*
* @global $wp_version
* @return array The relevant CSS file URLs.
*/
function wp_media_mce_styles() {
$version = 'ver=' . $GLOBALS['wp_version'];
$tinymce = includes_url( "js/tinymce/skins/lightgray/content.min.css?$version" );
$dashicons = includes_url( "css/dashicons.css?$version" );
$skin = includes_url( "js/tinymce/skins/wordpress/wp-content.css?$version" );
$mediaelement = includes_url( "js/mediaelement/mediaelementplayer.min.css?$version" );
$wpmediaelement = includes_url( "js/mediaelement/wp-mediaelement.css?$version" );
$mce_styles = array( $tinymce, $dashicons, $skin, $mediaelement, $wpmediaelement );
$editor_styles = get_editor_stylesheets();
if ( ! empty( $editor_styles ) ) {
foreach ( $editor_styles as $style ) {
$mce_styles[] = $style;
}
}
return $mce_styles;
}