1863 lines
62 KiB
PHP
1863 lines
62 KiB
PHP
<?php
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/**
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* WordPress API for media display.
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*
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* @package WordPress
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* @subpackage Media
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*/
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/**
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* Scale down the default size of an image.
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*
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* This is so that the image is a better fit for the editor and theme.
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*
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* The $size parameter accepts either an array or a string. The supported string
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* values are 'thumb' or 'thumbnail' for the given thumbnail size or defaults at
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* 128 width and 96 height in pixels. Also supported for the string value is
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* 'medium' and 'full'. The 'full' isn't actually supported, but any value other
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* than the supported will result in the content_width size or 500 if that is
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* not set.
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*
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* Finally, there is a filter named 'editor_max_image_size', that will be called
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* on the calculated array for width and height, respectively. The second
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* parameter will be the value that was in the $size parameter. The returned
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* type for the hook is an array with the width as the first element and the
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* height as the second element.
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*
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* @since 2.5.0
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* @uses wp_constrain_dimensions() This function passes the widths and the heights.
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*
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* @param int $width Width of the image
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* @param int $height Height of the image
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* @param string|array $size Size of what the result image should be.
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* @param context Could be 'display' (like in a theme) or 'edit' (like inserting into an editor)
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* @return array Width and height of what the result image should resize to.
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*/
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function image_constrain_size_for_editor($width, $height, $size = 'medium', $context = null ) {
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global $content_width, $_wp_additional_image_sizes;
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if ( ! $context )
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$context = is_admin() ? 'edit' : 'display';
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if ( is_array($size) ) {
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$max_width = $size[0];
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$max_height = $size[1];
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}
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elseif ( $size == 'thumb' || $size == 'thumbnail' ) {
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$max_width = intval(get_option('thumbnail_size_w'));
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$max_height = intval(get_option('thumbnail_size_h'));
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// last chance thumbnail size defaults
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if ( !$max_width && !$max_height ) {
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$max_width = 128;
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$max_height = 96;
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}
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}
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elseif ( $size == 'medium' ) {
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$max_width = intval(get_option('medium_size_w'));
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$max_height = intval(get_option('medium_size_h'));
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// if no width is set, default to the theme content width if available
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}
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elseif ( $size == 'large' ) {
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// We're inserting a large size image into the editor. If it's a really
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// big image we'll scale it down to fit reasonably within the editor
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// itself, and within the theme's content width if it's known. The user
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// can resize it in the editor if they wish.
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$max_width = intval(get_option('large_size_w'));
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$max_height = intval(get_option('large_size_h'));
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if ( intval($content_width) > 0 )
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$max_width = min( intval($content_width), $max_width );
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} elseif ( isset( $_wp_additional_image_sizes ) && count( $_wp_additional_image_sizes ) && in_array( $size, array_keys( $_wp_additional_image_sizes ) ) ) {
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$max_width = intval( $_wp_additional_image_sizes[$size]['width'] );
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$max_height = intval( $_wp_additional_image_sizes[$size]['height'] );
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if ( intval($content_width) > 0 && 'edit' == $context ) // Only in admin. Assume that theme authors know what they're doing.
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$max_width = min( intval($content_width), $max_width );
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}
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// $size == 'full' has no constraint
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else {
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$max_width = $width;
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$max_height = $height;
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}
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list( $max_width, $max_height ) = apply_filters( 'editor_max_image_size', array( $max_width, $max_height ), $size, $context );
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return wp_constrain_dimensions( $width, $height, $max_width, $max_height );
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}
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/**
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* Retrieve width and height attributes using given width and height values.
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*
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* Both attributes are required in the sense that both parameters must have a
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* value, but are optional in that if you set them to false or null, then they
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* will not be added to the returned string.
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*
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* You can set the value using a string, but it will only take numeric values.
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* If you wish to put 'px' after the numbers, then it will be stripped out of
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* the return.
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*
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* @since 2.5.0
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*
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* @param int|string $width Optional. Width attribute value.
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* @param int|string $height Optional. Height attribute value.
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* @return string HTML attributes for width and, or height.
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*/
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function image_hwstring($width, $height) {
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$out = '';
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if ($width)
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$out .= 'width="'.intval($width).'" ';
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if ($height)
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$out .= 'height="'.intval($height).'" ';
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return $out;
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}
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/**
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* Scale an image to fit a particular size (such as 'thumb' or 'medium').
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*
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* Array with image url, width, height, and whether is intermediate size, in
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* that order is returned on success is returned. $is_intermediate is true if
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* $url is a resized image, false if it is the original.
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*
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* The URL might be the original image, or it might be a resized version. This
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* function won't create a new resized copy, it will just return an already
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* resized one if it exists.
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*
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* A plugin may use the 'image_downsize' filter to hook into and offer image
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* resizing services for images. The hook must return an array with the same
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* elements that are returned in the function. The first element being the URL
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* to the new image that was resized.
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*
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* @since 2.5.0
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* @uses apply_filters() Calls 'image_downsize' on $id and $size to provide
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* resize services.
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*
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* @param int $id Attachment ID for image.
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* @param array|string $size Optional, default is 'medium'. Size of image, either array or string.
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* @return bool|array False on failure, array on success.
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*/
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function image_downsize($id, $size = 'medium') {
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if ( !wp_attachment_is_image($id) )
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return false;
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// plugins can use this to provide resize services
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if ( $out = apply_filters( 'image_downsize', false, $id, $size ) )
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return $out;
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$img_url = wp_get_attachment_url($id);
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$meta = wp_get_attachment_metadata($id);
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$width = $height = 0;
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$is_intermediate = false;
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$img_url_basename = wp_basename($img_url);
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// try for a new style intermediate size
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if ( $intermediate = image_get_intermediate_size($id, $size) ) {
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$img_url = str_replace($img_url_basename, $intermediate['file'], $img_url);
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$width = $intermediate['width'];
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$height = $intermediate['height'];
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$is_intermediate = true;
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}
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elseif ( $size == 'thumbnail' ) {
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// fall back to the old thumbnail
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if ( ($thumb_file = wp_get_attachment_thumb_file($id)) && $info = getimagesize($thumb_file) ) {
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$img_url = str_replace($img_url_basename, wp_basename($thumb_file), $img_url);
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$width = $info[0];
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$height = $info[1];
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$is_intermediate = true;
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}
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}
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if ( !$width && !$height && isset($meta['width'], $meta['height']) ) {
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// any other type: use the real image
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$width = $meta['width'];
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$height = $meta['height'];
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}
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if ( $img_url) {
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// we have the actual image size, but might need to further constrain it if content_width is narrower
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list( $width, $height ) = image_constrain_size_for_editor( $width, $height, $size );
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return array( $img_url, $width, $height, $is_intermediate );
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}
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return false;
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}
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/**
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* Registers a new image size
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*
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* @since 2.9.0
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*/
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function add_image_size( $name, $width = 0, $height = 0, $crop = false ) {
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global $_wp_additional_image_sizes;
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$_wp_additional_image_sizes[$name] = array( 'width' => absint( $width ), 'height' => absint( $height ), 'crop' => (bool) $crop );
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}
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/**
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* Registers an image size for the post thumbnail
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*
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* @since 2.9.0
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*/
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function set_post_thumbnail_size( $width = 0, $height = 0, $crop = false ) {
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add_image_size( 'post-thumbnail', $width, $height, $crop );
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}
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/**
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* An <img src /> tag for an image attachment, scaling it down if requested.
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*
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* The filter 'get_image_tag_class' allows for changing the class name for the
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* image without having to use regular expressions on the HTML content. The
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* parameters are: what WordPress will use for the class, the Attachment ID,
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* image align value, and the size the image should be.
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*
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* The second filter 'get_image_tag' has the HTML content, which can then be
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* further manipulated by a plugin to change all attribute values and even HTML
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* content.
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*
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* @since 2.5.0
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*
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* @uses apply_filters() The 'get_image_tag_class' filter is the IMG element
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* class attribute.
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* @uses apply_filters() The 'get_image_tag' filter is the full IMG element with
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* all attributes.
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*
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* @param int $id Attachment ID.
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* @param string $alt Image Description for the alt attribute.
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* @param string $title Image Description for the title attribute.
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* @param string $align Part of the class name for aligning the image.
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* @param string $size Optional. Default is 'medium'.
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* @return string HTML IMG element for given image attachment
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*/
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function get_image_tag($id, $alt, $title, $align, $size='medium') {
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list( $img_src, $width, $height ) = image_downsize($id, $size);
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$hwstring = image_hwstring($width, $height);
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$title = $title ? 'title="' . esc_attr( $title ) . '" ' : '';
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$class = 'align' . esc_attr($align) .' size-' . esc_attr($size) . ' wp-image-' . $id;
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$class = apply_filters('get_image_tag_class', $class, $id, $align, $size);
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$html = '<img src="' . esc_attr($img_src) . '" alt="' . esc_attr($alt) . '" ' . $title . $hwstring . 'class="' . $class . '" />';
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$html = apply_filters( 'get_image_tag', $html, $id, $alt, $title, $align, $size );
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return $html;
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}
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/**
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* Calculates the new dimensions for a downsampled image.
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*
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* If either width or height are empty, no constraint is applied on
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* that dimension.
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*
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* @since 2.5.0
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*
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* @param int $current_width Current width of the image.
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* @param int $current_height Current height of the image.
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* @param int $max_width Optional. Maximum wanted width.
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* @param int $max_height Optional. Maximum wanted height.
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* @return array First item is the width, the second item is the height.
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*/
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function wp_constrain_dimensions( $current_width, $current_height, $max_width=0, $max_height=0 ) {
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if ( !$max_width and !$max_height )
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return array( $current_width, $current_height );
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$width_ratio = $height_ratio = 1.0;
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$did_width = $did_height = false;
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if ( $max_width > 0 && $current_width > 0 && $current_width > $max_width ) {
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$width_ratio = $max_width / $current_width;
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$did_width = true;
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}
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if ( $max_height > 0 && $current_height > 0 && $current_height > $max_height ) {
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$height_ratio = $max_height / $current_height;
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$did_height = true;
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}
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// Calculate the larger/smaller ratios
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$smaller_ratio = min( $width_ratio, $height_ratio );
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$larger_ratio = max( $width_ratio, $height_ratio );
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if ( intval( $current_width * $larger_ratio ) > $max_width || intval( $current_height * $larger_ratio ) > $max_height )
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// The larger ratio is too big. It would result in an overflow.
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$ratio = $smaller_ratio;
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else
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// The larger ratio fits, and is likely to be a more "snug" fit.
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$ratio = $larger_ratio;
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$w = intval( $current_width * $ratio );
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$h = intval( $current_height * $ratio );
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// Sometimes, due to rounding, we'll end up with a result like this: 465x700 in a 177x177 box is 117x176... a pixel short
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// 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.
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// Thus we look for dimensions that are one pixel shy of the max value and bump them up
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if ( $did_width && $w == $max_width - 1 )
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$w = $max_width; // Round it up
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if ( $did_height && $h == $max_height - 1 )
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$h = $max_height; // Round it up
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return array( $w, $h );
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}
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/**
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* Retrieve calculated resized dimensions for use in WP_Image_Editor.
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*
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* Calculate dimensions and coordinates for a resized image that fits within a
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* specified width and height. If $crop is true, the largest matching central
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* portion of the image will be cropped out and resized to the required size.
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*
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* @since 2.5.0
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* @uses apply_filters() Calls 'image_resize_dimensions' on $orig_w, $orig_h, $dest_w, $dest_h and
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* $crop to provide custom resize dimensions.
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*
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* @param int $orig_w Original width.
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* @param int $orig_h Original height.
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* @param int $dest_w New width.
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* @param int $dest_h New height.
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* @param bool $crop Optional, default is false. Whether to crop image or resize.
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* @return bool|array False on failure. Returned array matches parameters for imagecopyresampled() PHP function.
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*/
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function image_resize_dimensions($orig_w, $orig_h, $dest_w, $dest_h, $crop = false) {
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if ($orig_w <= 0 || $orig_h <= 0)
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return false;
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// at least one of dest_w or dest_h must be specific
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if ($dest_w <= 0 && $dest_h <= 0)
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return false;
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// plugins can use this to provide custom resize dimensions
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$output = apply_filters( 'image_resize_dimensions', null, $orig_w, $orig_h, $dest_w, $dest_h, $crop );
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if ( null !== $output )
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return $output;
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if ( $crop ) {
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// crop the largest possible portion of the original image that we can size to $dest_w x $dest_h
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$aspect_ratio = $orig_w / $orig_h;
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$new_w = min($dest_w, $orig_w);
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$new_h = min($dest_h, $orig_h);
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if ( !$new_w ) {
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$new_w = intval($new_h * $aspect_ratio);
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}
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if ( !$new_h ) {
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$new_h = intval($new_w / $aspect_ratio);
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}
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$size_ratio = max($new_w / $orig_w, $new_h / $orig_h);
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$crop_w = round($new_w / $size_ratio);
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$crop_h = round($new_h / $size_ratio);
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$s_x = floor( ($orig_w - $crop_w) / 2 );
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$s_y = floor( ($orig_h - $crop_h) / 2 );
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} else {
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// don't crop, just resize using $dest_w x $dest_h as a maximum bounding box
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$crop_w = $orig_w;
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$crop_h = $orig_h;
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$s_x = 0;
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$s_y = 0;
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list( $new_w, $new_h ) = wp_constrain_dimensions( $orig_w, $orig_h, $dest_w, $dest_h );
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}
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// if the resulting image would be the same size or larger we don't want to resize it
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if ( $new_w >= $orig_w && $new_h >= $orig_h )
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return false;
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// the return array matches the parameters to imagecopyresampled()
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// int dst_x, int dst_y, int src_x, int src_y, int dst_w, int dst_h, int src_w, int src_h
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return array( 0, 0, (int) $s_x, (int) $s_y, (int) $new_w, (int) $new_h, (int) $crop_w, (int) $crop_h );
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}
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/**
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* Resize an image to make a thumbnail or intermediate size.
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*
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* The returned array has the file size, the image width, and image height. The
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* filter 'image_make_intermediate_size' can be used to hook in and change the
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* values of the returned array. The only parameter is the resized file path.
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*
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* @since 2.5.0
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*
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* @param string $file File path.
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* @param int $width Image width.
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* @param int $height Image height.
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* @param bool $crop Optional, default is false. Whether to crop image to specified height and width or resize.
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* @return bool|array False, if no image was created. Metadata array on success.
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*/
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function image_make_intermediate_size( $file, $width, $height, $crop = false ) {
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if ( $width || $height ) {
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$editor = wp_get_image_editor( $file );
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if ( is_wp_error( $editor ) || is_wp_error( $editor->resize( $width, $height, $crop ) ) )
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return false;
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$resized_file = $editor->save();
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if ( ! is_wp_error( $resized_file ) && $resized_file ) {
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unset( $resized_file['path'] );
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return $resized_file;
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}
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}
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return false;
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}
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/**
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* Retrieve the image's intermediate size (resized) path, width, and height.
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*
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* The $size parameter can be an array with the width and height respectively.
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* If the size matches the 'sizes' metadata array for width and height, then it
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* will be used. If there is no direct match, then the nearest image size larger
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* than the specified size will be used. If nothing is found, then the function
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* will break out and return false.
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*
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* The metadata 'sizes' is used for compatible sizes that can be used for the
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* parameter $size value.
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*
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* The url path will be given, when the $size parameter is a string.
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*
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* If you are passing an array for the $size, you should consider using
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* add_image_size() so that a cropped version is generated. It's much more
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* efficient than having to find the closest-sized image and then having the
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* browser scale down the image.
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*
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* @since 2.5.0
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* @see add_image_size()
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*
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* @param int $post_id Attachment ID for image.
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* @param array|string $size Optional, default is 'thumbnail'. Size of image, either array or string.
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* @return bool|array False on failure or array of file path, width, and height on success.
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*/
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function image_get_intermediate_size($post_id, $size='thumbnail') {
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if ( !is_array( $imagedata = wp_get_attachment_metadata( $post_id ) ) )
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return false;
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// get the best one for a specified set of dimensions
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if ( is_array($size) && !empty($imagedata['sizes']) ) {
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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->ID,
|
|
'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;
|
|
}
|
|
</style>
|
|
<!-- see gallery_shortcode() in wp-includes/media.php -->";
|
|
$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 ) {
|
|
$link = isset($attr['link']) && 'file' == $attr['link'] ? wp_get_attachment_link($id, $size, false, false) : wp_get_attachment_link($id, $size, true, false);
|
|
$image_meta = wp_get_attachment_metadata( $id );
|
|
$orientation = ( $image_meta['height'] > $image_meta['width'] ) ? 'portrait' : 'landscape';
|
|
|
|
$output .= "<{$itemtag} class='gallery-item'>";
|
|
$output .= "
|
|
<{$icontag} class='gallery-icon {$orientation}'>
|
|
$link
|
|
</{$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' => '' );
|
|
foreach ( $default_types as $type )
|
|
$defaults_atts[$type] = '';
|
|
|
|
$atts = shortcode_atts( $defaults_atts, $attr );
|
|
extract( $atts );
|
|
|
|
$primary = false;
|
|
if ( ! empty( $src ) ) {
|
|
$type = wp_check_filetype( $src );
|
|
if ( ! in_array( $type['ext'], $default_types ) ) {
|
|
printf( '<a class="wp-post-format-link-audio" href="%1$s">%1$s</a>', $src );
|
|
return;
|
|
}
|
|
$primary = true;
|
|
array_unshift( $default_types, 'src' );
|
|
} else {
|
|
foreach ( $default_types as $ext ) {
|
|
if ( ! empty( $$ext ) ) {
|
|
$type = wp_check_filetype( $$ext );
|
|
if ( $type['ext'] === $ext )
|
|
$primary = true;
|
|
}
|
|
}
|
|
}
|
|
|
|
if ( ! $primary ) {
|
|
$audios = get_post_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 ) {
|
|
wp_enqueue_style( 'wp-mediaelement' );
|
|
wp_enqueue_script( 'wp-mediaelement' );
|
|
}
|
|
|
|
$atts = array(
|
|
sprintf( 'class="%s"', apply_filters( 'wp_audio_shortcode_class', 'wp-audio-shortcode' ) ),
|
|
sprintf( 'id="audio-%d-%d"', $post_id, $instances ),
|
|
);
|
|
|
|
$html = sprintf( '<audio %s controls="controls" preload="none">', join( ' ', $atts ) );
|
|
|
|
$fileurl = '';
|
|
$source = '<source type="%s" src="%s" />';
|
|
foreach ( $default_types as $fallback ) {
|
|
if ( ! empty( $$fallback ) ) {
|
|
if ( empty( $fileurl ) )
|
|
$fileurl = $$fallback;
|
|
$type = wp_check_filetype( $$fallback );
|
|
$html .= sprintf( $source, $type['type'], $$fallback );
|
|
}
|
|
}
|
|
|
|
if ( 'mediaelement' === $library )
|
|
$html .= wp_mediaelement_fallback( $fileurl );
|
|
$html .= '</audio>';
|
|
|
|
return apply_filters( 'wp_audio_shortcode', $html, $atts, $audio, $post_id );
|
|
}
|
|
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' => '',
|
|
'height' => 360,
|
|
'width' => empty( $content_width ) ? 640 : $content_width,
|
|
);
|
|
foreach ( $default_types as $type )
|
|
$defaults_atts[$type] = '';
|
|
|
|
$atts = shortcode_atts( $defaults_atts, $attr );
|
|
extract( $atts );
|
|
|
|
$primary = false;
|
|
if ( ! empty( $src ) ) {
|
|
$type = wp_check_filetype( $src );
|
|
if ( ! in_array( $type['ext'], $default_types ) ) {
|
|
printf( '<a class="wp-post-format-link-video" href="%1$s">%1$s</a>', $src );
|
|
return;
|
|
}
|
|
$primary = true;
|
|
array_unshift( $default_types, 'src' );
|
|
} else {
|
|
foreach ( $default_types as $ext ) {
|
|
if ( ! empty( $$ext ) ) {
|
|
$type = wp_check_filetype( $$ext );
|
|
if ( $type['ext'] === $ext )
|
|
$primary = true;
|
|
}
|
|
}
|
|
}
|
|
|
|
if ( ! $primary ) {
|
|
$videos = get_post_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 ) {
|
|
wp_enqueue_style( 'wp-mediaelement' );
|
|
wp_enqueue_script( 'wp-mediaelement' );
|
|
}
|
|
|
|
$atts = array(
|
|
sprintf( 'class="%s"', apply_filters( 'wp_video_shortcode_class', 'wp-video-shortcode' ) ),
|
|
sprintf( 'id="video-%d-%d"', $post_id, $instances ),
|
|
sprintf( 'width="%d"', $width ),
|
|
sprintf( 'height="%d"', $height ),
|
|
);
|
|
|
|
if ( ! empty( $poster ) )
|
|
$atts[] = sprintf( 'poster="%s"', esc_url( $poster ) );
|
|
|
|
$html = sprintf( '<video %s controls="controls" preload="none">', join( ' ', $atts ) );
|
|
|
|
$fileurl = '';
|
|
$source = '<source type="%s" src="%s" />';
|
|
foreach ( $default_types as $fallback ) {
|
|
if ( ! empty( $$fallback ) ) {
|
|
if ( empty( $fileurl ) )
|
|
$fileurl = $$fallback;
|
|
$type = wp_check_filetype( $$fallback );
|
|
// m4v sometimes shows up as video/mpeg which collides with mp4
|
|
if ( 'm4v' === $type['ext'] )
|
|
$type['type'] = 'video/m4v';
|
|
$html .= sprintf( $source, $type['type'], $$fallback );
|
|
}
|
|
}
|
|
if ( 'mediaelement' === $library )
|
|
$html .= wp_mediaelement_fallback( $fileurl, $width, $height );
|
|
$html .= '</video>';
|
|
|
|
return apply_filters( 'wp_video_shortcode', $html, $atts, $video, $post_id );
|
|
}
|
|
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' );
|
|
}
|
|
|
|
/**
|
|
* 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 );
|
|
}
|
|
|
|
/**
|
|
* 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' ) );
|
|
$bytes = apply_filters( 'upload_size_limit', min( $u_bytes, $p_bytes ), $u_bytes, $p_bytes );
|
|
return $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';
|
|
|
|
$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,silverlight,flash,html4',
|
|
'file_data_name' => 'async-upload', // key passed to $_FILE.
|
|
'multiple_queues' => true,
|
|
'max_file_size' => $max_upload_size . 'b',
|
|
'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( array( 'title' => __( 'Allowed Files' ), 'extensions' => '*') ),
|
|
'multipart' => true,
|
|
'urlstream_upload' => true,
|
|
);
|
|
|
|
// Multi-file uploading doesn't currently work in iOS Safari,
|
|
// single-file allows the built-in camera to be used as source for images
|
|
if ( wp_is_mobile() )
|
|
$defaults['multi_selection'] = false;
|
|
|
|
$defaults = apply_filters( 'plupload_default_settings', $defaults );
|
|
|
|
$params = array(
|
|
'action' => 'upload-attachment',
|
|
);
|
|
|
|
$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' => 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,
|
|
),
|
|
'editLink' => false,
|
|
);
|
|
|
|
if ( current_user_can( 'edit_post', $attachment->ID ) ) {
|
|
$response['nonces']['update'] = wp_create_nonce( 'update-post_' . $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();
|
|
$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 ) {
|
|
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(
|
|
'height' => $meta['height'],
|
|
'width' => $meta['width'],
|
|
'url' => $attachment_url,
|
|
'orientation' => $meta['height'] > $meta['width'] ? 'portrait' : 'landscape',
|
|
);
|
|
|
|
$response = array_merge( $response, array( 'sizes' => $sizes ), $sizes['full'] );
|
|
}
|
|
|
|
if ( function_exists('get_compat_media_markup') )
|
|
$response['compat'] = get_compat_media_markup( $attachment->ID, array( 'in_modal' => true ) );
|
|
|
|
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;
|
|
|
|
$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' => '',
|
|
);
|
|
|
|
$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
|
|
);
|
|
|
|
$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 ),
|
|
'captions' => ! apply_filters( 'disable_captions', '' ),
|
|
'nonce' => array(
|
|
'sendToEditor' => wp_create_nonce( 'media-send-to-editor' ),
|
|
),
|
|
'post' => array(
|
|
'id' => 0,
|
|
),
|
|
'defaultProps' => $props,
|
|
);
|
|
|
|
$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 ),
|
|
);
|
|
|
|
if ( current_theme_supports( 'post-thumbnails', $post->post_type ) && post_type_supports( $post->post_type, 'thumbnail' ) ) {
|
|
$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' ),
|
|
/* 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' ),
|
|
'returnToLibrary' => __( '← Return to library' ),
|
|
'allMediaItems' => __( 'All media items' ),
|
|
'noItemsFound' => __( 'No items found.' ),
|
|
'insertIntoPost' => $hier ? __( 'Insert into page' ) : __( 'Insert into post' ),
|
|
'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." ),
|
|
|
|
// From URL
|
|
'insertFromUrlTitle' => __( 'Insert from URL' ),
|
|
|
|
// Featured Images
|
|
'setFeaturedImageTitle' => __( 'Set Featured Image' ),
|
|
'setFeaturedImage' => __( 'Set featured image' ),
|
|
|
|
// Gallery
|
|
'createGalleryTitle' => __( 'Create Gallery' ),
|
|
'editGalleryTitle' => __( 'Edit Gallery' ),
|
|
'cancelGalleryTitle' => __( '← Cancel Gallery' ),
|
|
'insertGallery' => __( 'Insert gallery' ),
|
|
'updateGallery' => __( 'Update gallery' ),
|
|
'addToGallery' => __( 'Add to gallery' ),
|
|
'addToGalleryTitle' => __( 'Add to Gallery' ),
|
|
'reverseOrder' => __( 'Reverse order' ),
|
|
);
|
|
|
|
$settings = apply_filters( 'media_view_settings', $settings, $post );
|
|
$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_style( 'media-views' );
|
|
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' );
|
|
|
|
do_action( 'wp_enqueue_media' );
|
|
}
|
|
|
|
/**
|
|
* Retrieve audio attached to the passed post
|
|
*
|
|
* @since 3.6.0
|
|
*
|
|
* @param int $post_id Post ID
|
|
* @return array Found audio attachments
|
|
*/
|
|
function get_post_audio( $post_id = 0 ) {
|
|
$post = empty( $post_id ) ? get_post() : get_post( $post_id );
|
|
if ( empty( $post ) )
|
|
return;
|
|
|
|
$children = get_children( array(
|
|
'post_parent' => $post->ID,
|
|
'post_type' => 'attachment',
|
|
'post_mime_type' => 'audio',
|
|
'posts_per_page' => -1
|
|
) );
|
|
|
|
if ( ! empty( $children ) )
|
|
return $children;
|
|
}
|
|
|
|
/**
|
|
* Retrieve video attached to the passed post
|
|
*
|
|
* @since 3.6.0
|
|
*
|
|
* @param int $post_id Post ID
|
|
* @return array Found video attachments
|
|
*/
|
|
function get_post_video( $post_id = 0 ) {
|
|
$post = empty( $post_id ) ? get_post() : get_post( $post_id );
|
|
if ( empty( $post ) )
|
|
return;
|
|
|
|
$children = get_children( array(
|
|
'post_parent' => $post->ID,
|
|
'post_type' => 'attachment',
|
|
'post_mime_type' => 'video',
|
|
'posts_per_page' => -1
|
|
) );
|
|
|
|
if ( ! empty( $children ) )
|
|
return $children;
|
|
}
|
|
|
|
/**
|
|
* Audio embed handler callback.
|
|
*
|
|
* @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_audio_embed( $matches, $attr, $url, $rawattr ) {
|
|
$audio = $url;
|
|
if ( shortcode_exists( 'audio' ) )
|
|
$audio = do_shortcode( '[audio src="' . $url . '" /]' );
|
|
return apply_filters( 'wp_audio_embed', $audio, $attr, $url, $rawattr );
|
|
}
|
|
wp_embed_register_handler( 'wp_audio_embed', '#https?://.+?\.(' . join( '|', wp_get_audio_extensions() ) . ')#i', apply_filters( 'wp_audio_embed_handler', 'wp_audio_embed' ), 9999 );
|
|
|
|
/**
|
|
* Video embed handler callback.
|
|
*
|
|
* @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_video_embed( $matches, $attr, $url, $rawattr ) {
|
|
$dimensions = '';
|
|
$video = $url;
|
|
if ( shortcode_exists( 'video' ) ) {
|
|
if ( ! empty( $rawattr['width'] ) && ! empty( $rawattr['height'] ) ) {
|
|
$dimensions .= sprintf( 'width="%d" ', (int) $rawattr['width'] );
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|
$dimensions .= sprintf( 'height="%d" ', (int) $rawattr['height'] );
|
|
}
|
|
$video = do_shortcode( '[video ' . $dimensions . 'src="' . $url . '" /]' );
|
|
}
|
|
return apply_filters( 'wp_video_embed', $video, $attr, $url, $rawattr );
|
|
}
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|
wp_embed_register_handler( 'wp_video_embed', '#https?://.+?\.(' . join( '|', wp_get_video_extensions() ) . ')#i', apply_filters( 'wp_video_embed_handler', 'wp_video_embed' ), 9999 );
|