/wp-includes/media.php
PHP | 1457 lines | 750 code | 173 blank | 534 comment | 200 complexity | edd0afa954cbab5ee7f0c2fdbb2b299f MD5 | raw file
- <?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;
- }
- 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
- * @uses apply_filters() Calls 'image_downsize' on $id and $size to provide
- * resize services.
- *
- * @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;
- // plugins can use this to provide resize services
- 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;
- }
- /**
- * Registers a new image size
- *
- * @since 2.9.0
- */
- 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' => (bool) $crop );
- }
- /**
- * Registers an image size for the post thumbnail
- *
- * @since 2.9.0
- */
- 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
- *
- * @uses apply_filters() The 'get_image_tag_class' filter is the IMG element
- * class attribute.
- * @uses apply_filters() The 'get_image_tag' filter is the full IMG element with
- * all attributes.
- *
- * @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;
- $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 . '" />';
- $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;
- $w = intval( $current_width * $ratio );
- $h = 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 resized dimensions for use in WP_Image_Editor.
- *
- * Calculate dimensions and coordinates for a resized image that fits within a
- * specified width and height. If $crop is true, the largest matching central
- * portion of the image will be cropped out and resized to the required size.
- *
- * @since 2.5.0
- * @uses apply_filters() Calls 'image_resize_dimensions' on $orig_w, $orig_h, $dest_w, $dest_h and
- * $crop to provide custom resize dimensions.
- *
- * @param int $orig_w Original width.
- * @param int $orig_h Original height.
- * @param int $dest_w New width.
- * @param int $dest_h New height.
- * @param bool $crop Optional, default is false. Whether to crop image or resize.
- * @return bool|array False on failure. Returned array matches parameters for imagecopyresampled() PHP function.
- */
- function image_resize_dimensions($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;
- // plugins can use this to provide custom resize dimensions
- $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);
- $s_x = floor( ($orig_w - $crop_w) / 2 );
- $s_y = floor( ($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 ) );
- 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) ) {
- $icon_dir = apply_filters( 'icon_dir', ABSPATH . WPINC . '/images/crystal' );
- $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.
- *
- * @see add_image_size()
- * @uses apply_filters() Calls 'wp_get_attachment_image_attributes' hook on attributes array
- * @uses wp_get_attachment_image_src() Gets attachment file URL and dimensions
- * @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.
- * @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);
- $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 attributed to the shortcode.
- * @param string $content Optional. Shortcode content.
- * @return string
- */
- function img_caption_shortcode($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] );
- }
- }
- // Allow plugins/themes to override the default caption template.
- $output = apply_filters('img_caption_shortcode', '', $attr, $content);
- if ( $output != '' )
- return $output;
- extract(shortcode_atts(array(
- 'id' => '',
- 'align' => 'alignnone',
- 'width' => '',
- 'caption' => ''
- ), $attr, 'caption'));
- if ( 1 > (int) $width || empty($caption) )
- return $content;
- if ( $id ) $id = 'id="' . esc_attr($id) . '" ';
- return '<div ' . $id . 'class="wp-caption ' . esc_attr($align) . '" style="width: ' . (10 + (int) $width) . 'px">'
- . do_shortcode( $content ) . '<p class="wp-caption-text">' . $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 $attr Attributes of the shortcode.
- * @return string HTML content to display gallery.
- */
- function gallery_shortcode($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'];
- }
- // Allow plugins/themes to override the default gallery template.
- $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'] );
- }
- extract(shortcode_atts(array(
- 'order' => 'ASC',
- 'orderby' => 'menu_order ID',
- 'id' => $post ? $post->ID : 0,
- 'itemtag' => 'dl',
- 'icontag' => 'dt',
- 'captiontag' => 'dd',
- 'columns' => 3,
- 'size' => 'thumbnail',
- 'include' => '',
- 'exclude' => ''
- ), $attr, 'gallery'));
- $id = intval($id);
- if ( 'RAND' == $order )
- $orderby = 'none';
- if ( !empty($include) ) {
- $_attachments = get_posts( array('include' => $include, 'post_status' => 'inherit', 'post_type' => 'attachment', 'post_mime_type' => 'image', 'order' => $order, 'orderby' => $orderby) );
- $attachments = array();
- foreach ( $_attachments as $key => $val ) {
- $attachments[$val->ID] = $_attachments[$key];
- }
- } elseif ( !empty($exclude) ) {
- $attachments = get_children( array('post_parent' => $id, 'exclude' => $exclude, 'post_status' => 'inherit', 'post_type' => 'attachment', 'post_mime_type' => 'image', 'order' => $order, 'orderby' => $orderby) );
- } else {
- $attachments = get_children( array('post_parent' => $id, 'post_status' => 'inherit', 'post_type' => 'attachment', 'post_mime_type' => 'image', 'order' => $order, 'orderby' => $orderby) );
- }
- if ( empty($attachments) )
- return '';
- if ( is_feed() ) {
- $output = "\n";
- foreach ( $attachments as $att_id => $attachment )
- $output .= wp_get_attachment_link($att_id, $size, true) . "\n";
- return $output;
- }
- $itemtag = tag_escape($itemtag);
- $captiontag = tag_escape($captiontag);
- $icontag = tag_escape($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';
- $columns = intval($columns);
- $itemwidth = $columns > 0 ? floor(100/$columns) : 100;
- $float = is_rtl() ? 'right' : 'left';
- $selector = "gallery-{$instance}";
- $gallery_style = $gallery_div = '';
- if ( apply_filters( 'use_default_gallery_style', true ) )
- $gallery_style = "
- <style type='text/css'>
- #{$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>";
- $size_class = sanitize_html_class( $size );
- $gallery_div = "<div id='$selector' class='gallery galleryid-{$id} gallery-columns-{$columns} gallery-size-{$size_class}'>";
- $output = apply_filters( 'gallery_style', $gallery_style . "\n\t\t" . $gallery_div );
- $i = 0;
- foreach ( $attachments as $id => $attachment ) {
- if ( ! empty( $attr['link'] ) && 'file' === $attr['link'] )
- $image_output = wp_get_attachment_link( $id, $size, false, false );
- elseif ( ! empty( $attr['link'] ) && 'none' === $attr['link'] )
- $image_output = wp_get_attachment_image( $id, $size, false );
- else
- $image_output = wp_get_attachment_link( $id, $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 ( $columns > 0 && ++$i % $columns == 0 )
- $output .= '<br style="clear: both" />';
- }
- $output .= "
- <br style='clear: both;' />
- </div>\n";
- return $output;
- }
- /**
- * 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( $url ) {
- return apply_filters( 'wp_mediaelement_fallback', sprintf( '<a href="%1$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() {
- return apply_filters( 'wp_audio_extensions', array( 'mp3', 'ogg', 'wma', 'm4a', 'wav' ) );
- }
- /**
- * 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 shortcode.
- * @return string HTML content to display audio.
- */
- function wp_audio_shortcode( $attr ) {
- $post_id = get_post() ? get_the_ID() : 0;
- static $instances = 0;
- $instances++;
- $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' );
- extract( $atts );
- $primary = false;
- if ( ! empty( $src ) ) {
- $type = wp_check_filetype( $src, wp_get_mime_types() );
- if ( ! in_array( $type['ext'], $default_types ) )
- return sprintf( '<a class="wp-embedded-audio" href="%s">%s</a>', esc_url( $src ), esc_html( $src ) );
- $primary = true;
- array_unshift( $default_types, 'src' );
- } else {
- foreach ( $default_types as $ext ) {
- if ( ! empty( $$ext ) ) {
- $type = wp_check_filetype( $$ext, wp_get_mime_types() );
- if ( $type['ext'] === $ext )
- $primary = true;
- }
- }
- }
- if ( ! $primary ) {
- $audios = get_attached_media( 'audio', $post_id );
- if ( empty( $audios ) )
- return;
- $audio = reset( $audios );
- $src = wp_get_attachment_url( $audio->ID );
- if ( empty( $src ) )
- return;
- array_unshift( $default_types, 'src' );
- }
- $library = apply_filters( 'wp_audio_shortcode_library', 'mediaelement' );
- if ( 'mediaelement' === $library && did_action( 'init' ) ) {
- wp_enqueue_style( 'wp-mediaelement' );
- wp_enqueue_script( 'wp-mediaelement' );
- }
- $atts = array(
- 'class' => apply_filters( 'wp_audio_shortcode_class', 'wp-audio-shortcode' ),
- 'id' => sprintf( 'audio-%d-%d', $post_id, $instances ),
- 'loop' => $loop,
- 'autoplay' => $autoplay,
- 'preload' => $preload,
- 'style' => 'width: 100%',
- );
- // These ones should just be omitted altogether if they are blank
- foreach ( array( 'loop', 'autoplay', 'preload' ) as $a ) {
- if ( empty( $atts[$a] ) )
- unset( $atts[$a] );
- }
- $attr_strings = array();
- foreach ( $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( $$fallback ) ) {
- if ( empty( $fileurl ) )
- $fileurl = $$fallback;
- $type = wp_check_filetype( $$fallback, wp_get_mime_types() );
- $html .= sprintf( $source, $type['type'], esc_url( $$fallback ) );
- }
- }
- if ( 'mediaelement' === $library )
- $html .= wp_mediaelement_fallback( $fileurl );
- $html .= '</audio>';
- return apply_filters( 'wp_audio_shortcode', $html, $atts, $audio, $post_id, $library );
- }
- add_shortcode( 'audio', apply_filters( 'wp_audio_shortcode_handler', 'wp_audio_shortcode' ) );
- /**
- * Return a filtered list of WP-supported video formats
- *
- * @since 3.6.0
- * @return array
- */
- function wp_get_video_extensions() {
- 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.
- * @return string HTML content to display video.
- */
- function wp_video_shortcode( $attr ) {
- global $content_width;
- $post_id = get_post() ? get_the_ID() : 0;
- static $instances = 0;
- $instances++;
- $video = null;
- $default_types = wp_get_video_extensions();
- $defaults_atts = array(
- 'src' => '',
- 'poster' => '',
- 'loop' => '',
- 'autoplay' => '',
- 'preload' => 'metadata',
- 'height' => 360,
- 'width' => empty( $content_width ) ? 640 : $content_width,
- );
- foreach ( $default_types as $type )
- $defaults_atts[$type] = '';
- $atts = shortcode_atts( $defaults_atts, $attr, 'video' );
- extract( $atts );
- $w = $width;
- $h = $height;
- if ( is_admin() && $width > 600 )
- $w = 600;
- elseif ( ! is_admin() && $w > $defaults_atts['width'] )
- $w = $defaults_atts['width'];
- if ( $w < $width )
- $height = round( ( $h * $w ) / $width );
- $width = $w;
- $primary = false;
- if ( ! empty( $src ) ) {
- $type = wp_check_filetype( $src, wp_get_mime_types() );
- if ( ! in_array( $type['ext'], $default_types ) )
- return sprintf( '<a class="wp-embedded-video" href="%s">%s</a>', esc_url( $src ), esc_html( $src ) );
- $primary = true;
- array_unshift( $default_types, 'src' );
- } else {
- foreach ( $default_types as $ext ) {
- if ( ! empty( $$ext ) ) {
- $type = wp_check_filetype( $$ext, wp_get_mime_types() );
- if ( $type['ext'] === $ext )
- $primary = true;
- }
- }
- }
- if ( ! $primary ) {
- $videos = get_attached_media( 'video', $post_id );
- if ( empty( $videos ) )
- return;
- $video = reset( $videos );
- $src = wp_get_attachment_url( $video->ID );
- if ( empty( $src ) )
- return;
- array_unshift( $default_types, 'src' );
- }
- $library = apply_filters( 'wp_video_shortcode_library', 'mediaelement' );
- if ( 'mediaelement' === $library && did_action( 'init' ) ) {
- wp_enqueue_style( 'wp-mediaelement' );
- wp_enqueue_script( 'wp-mediaelement' );
- }
- $atts = array(
- 'class' => apply_filters( 'wp_video_shortcode_class', 'wp-video-shortcode' ),
- 'id' => sprintf( 'video-%d-%d', $post_id, $instances ),
- 'width' => absint( $width ),
- 'height' => absint( $height ),
- 'poster' => esc_url( $poster ),
- 'loop' => $loop,
- 'autoplay' => $autoplay,
- 'preload' => $preload,
- );
- // These ones should just be omitted altogether if they are blank
- foreach ( array( 'poster', 'loop', 'autoplay', 'preload' ) as $a ) {
- if ( empty( $atts[$a] ) )
- unset( $atts[$a] );
- }
- $attr_strings = array();
- foreach ( $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( $$fallback ) ) {
- if ( empty( $fileurl ) )
- $fileurl = $$fallback;
- $type = wp_check_filetype( $$fallback, wp_get_mime_types() );
- // m4v sometimes shows up as video/mpeg which collides with mp4
- if ( 'm4v' === $type['ext'] )
- $type['type'] = 'video/m4v';
- $html .= sprintf( $source, $type['type'], esc_url( $$fallback ) );
- }
- }
- if ( 'mediaelement' === $library )
- $html .= wp_mediaelement_fallback( $fileurl );
- $html .= '</video>';
- $html = sprintf( '<div style="width: %dpx; max-width: 100%%;">%s</div>', $width, $html );
- return apply_filters( 'wp_video_shortcode', $html, $atts, $video, $post_id, $library );
- }
- add_shortcode( 'video', apply_filters( 'wp_video_shortcode_handler', '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;
- $k = $prev ? $k - 1 : $k + 1;
- $output = $attachment_id = null;
- if ( isset( $attachments[ $k ] ) ) {
- $attachment_id = $attachments[ $k ]->ID;
- $output = wp_get_attachment_link( $attachment_id, $size, true, false, $text );
- }
- $adjacent = $prev ? 'previous' : 'next';
- echo apply_filters( "{$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
- *
- * @return array Default embed parameters.
- */
- function wp_embed_defaults() {
- if ( ! empty( $GLOBALS['content_width'] ) )
- $width = (int) $GLOBALS['content_width'];
- if ( empty( $width ) )
- $width = 500;
- $height = min( ceil( $width * 1.5 ), 1000 );
- return apply_filters( 'embed_defaults', compact( 'width', 'height' ) );
- }
- /**
- * 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' );
- $oembed = _wp_oembed_get_object();
- $oembed->providers[$format] = array( $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' );
- $oembed = _wp_oembed_get_object();
- if ( isset( $oembed->providers[ $format ] ) ) {
- unset( $oembed->providers[ $format ] );
- return true;
- }
- return false;
- }
- /**
- * Determines if default embed handlers should be loaded.
- *
- * Checks to make sure that the embeds library hasn't already been loaded. If
- * it hasn't, then it will load the embeds library.
- *
- * @since 2.9.0
- */
- function wp_maybe_load_embeds() {
- if ( ! apply_filters( 'load_default_embeds', true ) )
- return;
- wp_embed_register_handler( 'googlevideo', '#http://video\.google\.([A-Za-z.]{2,5})/videoplay\?docid=([\d-]+)(.*?)#i', 'wp_embed_handler_googlevideo' );
- wp_embed_register_handler( 'audio', '#^https?://.+?\.(' . join( '|', wp_get_audio_extensions() ) . ')$#i', apply_filters( 'wp_audio_embed_handler', 'wp_embed_handler_audio' ), 9999 );
- 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'], $attr['height'] );
- }
- return apply_filters( 'embed_googlevideo', '<embed type="application/x-shockwave-flash" src="http://video.google.com/googleplayer.swf?docid=' . esc_attr($matches[2]) . '&hl=en&fs=true" style="width:' . esc_attr($width) . 'px;height:' . esc_attr($height) . 'px" allowFullScreen="true" allowScriptAccess="always" />', $matches, $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 ) );
- 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 ) );
- 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