+/**
+ * Return all of the taxonomy names that are registered for attachments.
+ *
+ * Handles mime-type-specific taxonomies such as attachment:image and attachment:video.
+ *
+ * @since 3.5.0
+ * @see get_attachment_taxonomies()
+ * @uses get_taxonomies()
+ *
+ * @param string $output The type of output to return, either taxonomy 'names' or 'objects'. 'names' is the default.
+ * @return array The names of all taxonomy of $object_type.
+ */
+function get_taxonomies_for_attachments( $output = 'names' ) {
+ $taxonomies = array();
+ foreach ( get_taxonomies( array(), 'objects' ) as $taxonomy ) {
+ foreach ( $taxonomy->object_type as $object_type ) {
+ if ( 'attachment' == $object_type || 0 === strpos( $object_type, 'attachment:' ) ) {
+ if ( 'names' == $output )
+ $taxonomies[] = $taxonomy->name;
+ else
+ $taxonomies[ $taxonomy->name ] = $taxonomy;
+ break;
+ }
+ }
+ }
+
+ return $taxonomies;
+}
+
+/**
+ * Create new GD image resource with transparency support
+ * @TODO: Deprecate if possible.
+ *
+ * @since 2.9.0
+ *
+ * @param int $width Image width
+ * @param int $height Image height
+ * @return image resource
+ */
+function wp_imagecreatetruecolor($width, $height) {
+ $img = imagecreatetruecolor($width, $height);
+ if ( is_resource($img) && function_exists('imagealphablending') && function_exists('imagesavealpha') ) {
+ imagealphablending($img, false);
+ imagesavealpha($img, true);
+ }
+ return $img;
+}
+
+/**
+ * Register an embed handler. This function should probably only be used for sites that do not support oEmbed.
+ *
+ * @since 2.9.0
+ * @see WP_Embed::register_handler()
+ */
+function wp_embed_register_handler( $id, $regex, $callback, $priority = 10 ) {
+ global $wp_embed;
+ $wp_embed->register_handler( $id, $regex, $callback, $priority );
+}
+
+/**
+ * Unregister a previously registered embed handler.
+ *
+ * @since 2.9.0
+ * @see WP_Embed::unregister_handler()
+ */
+function wp_embed_unregister_handler( $id, $priority = 10 ) {
+ global $wp_embed;
+ $wp_embed->unregister_handler( $id, $priority );
+}
+
+/**
+ * Create default array of embed parameters.
+ *
+ * The width defaults to the content width as specified by the theme. If the
+ * theme does not specify a content width, then 500px is used.
+ *
+ * The default height is 1.5 times the width, or 1000px, whichever is smaller.
+ *
+ * The 'embed_defaults' filter can be used to adjust either of these values.
+ *
+ * @since 2.9.0
+ *
+ * @param string $url Optional. The URL that should be embedded. Default empty.
+ *
+ * @return array Default embed parameters.
+ */
+function wp_embed_defaults( $url = '' ) {
+ if ( ! empty( $GLOBALS['content_width'] ) )
+ $width = (int) $GLOBALS['content_width'];
+
+ if ( empty( $width ) )
+ $width = 500;
+
+ $height = min( ceil( $width * 1.5 ), 1000 );
+
+ /**
+ * Filter the default array of embed dimensions.
+ *
+ * @since 2.9.0
+ *
+ * @param int $width Width of the embed in pixels.
+ * @param int $height Height of the embed in pixels.
+ * @param string $url The URL that should be embedded.
+ */
+ return apply_filters( 'embed_defaults', compact( 'width', 'height' ), $url );
+}
+
+/**
+ * Based on a supplied width/height example, return the biggest possible dimensions based on the max width/height.
+ *
+ * @since 2.9.0
+ * @uses wp_constrain_dimensions() This function passes the widths and the heights.
+ *
+ * @param int $example_width The width of an example embed.
+ * @param int $example_height The height of an example embed.
+ * @param int $max_width The maximum allowed width.
+ * @param int $max_height The maximum allowed height.
+ * @return array The maximum possible width and height based on the example ratio.
+ */
+function wp_expand_dimensions( $example_width, $example_height, $max_width, $max_height ) {
+ $example_width = (int) $example_width;
+ $example_height = (int) $example_height;
+ $max_width = (int) $max_width;
+ $max_height = (int) $max_height;
+
+ return wp_constrain_dimensions( $example_width * 1000000, $example_height * 1000000, $max_width, $max_height );
+}
+
+/**
+ * Attempts to fetch the embed HTML for a provided URL using oEmbed.
+ *
+ * @since 2.9.0
+ * @see WP_oEmbed
+ *
+ * @uses _wp_oembed_get_object()
+ * @uses WP_oEmbed::get_html()
+ *
+ * @param string $url The URL that should be embedded.
+ * @param array $args Additional arguments and parameters.
+ * @return bool|string False on failure or the embed HTML on success.
+ */
+function wp_oembed_get( $url, $args = '' ) {
+ require_once( ABSPATH . WPINC . '/class-oembed.php' );
+ $oembed = _wp_oembed_get_object();
+ return $oembed->get_html( $url, $args );
+}
+
+/**
+ * Adds a URL format and oEmbed provider URL pair.
+ *
+ * @since 2.9.0
+ * @see WP_oEmbed
+ *
+ * @uses _wp_oembed_get_object()
+ *
+ * @param string $format The format of URL that this provider can handle. You can use asterisks as wildcards.
+ * @param string $provider The URL to the oEmbed provider.
+ * @param boolean $regex Whether the $format parameter is in a regex format.
+ */
+function wp_oembed_add_provider( $format, $provider, $regex = false ) {
+ require_once( ABSPATH . WPINC . '/class-oembed.php' );
+
+ if ( did_action( 'plugins_loaded' ) ) {
+ $oembed = _wp_oembed_get_object();
+ $oembed->providers[$format] = array( $provider, $regex );
+ } else {
+ WP_oEmbed::_add_provider_early( $format, $provider, $regex );
+ }
+}
+
+/**
+ * Removes an oEmbed provider.
+ *
+ * @since 3.5.0
+ * @see WP_oEmbed
+ *
+ * @uses _wp_oembed_get_object()
+ *
+ * @param string $format The URL format for the oEmbed provider to remove.
+ */
+function wp_oembed_remove_provider( $format ) {
+ require_once( ABSPATH . WPINC . '/class-oembed.php' );
+
+ if ( did_action( 'plugins_loaded' ) ) {
+ $oembed = _wp_oembed_get_object();
+
+ if ( isset( $oembed->providers[ $format ] ) ) {
+ unset( $oembed->providers[ $format ] );
+ return true;
+ }
+ } else {
+ WP_oEmbed::_remove_provider_early( $format );
+ }
+
+ return false;
+}
+
+/**
+ * Determines if default embed handlers should be loaded.
+ *
+ * Checks to make sure that the embeds library hasn't already been loaded. If
+ * it hasn't, then it will load the embeds library.
+ *
+ * @since 2.9.0
+ */
+function wp_maybe_load_embeds() {
+ /**
+ * Filter whether to load the default embed handlers.
+ *
+ * Returning a falsey value will prevent loading the default embed handlers.
+ *
+ * @since 2.9.0
+ *
+ * @param bool $maybe_load_embeds Whether to load the embeds library. Default true.
+ */
+ if ( ! apply_filters( 'load_default_embeds', true ) ) {
+ return;
+ }
+
+ wp_embed_register_handler( 'youtube_embed_url', '#https?://(www.)?youtube\.com/embed/([^/]+)#i', 'wp_embed_handler_youtube' );
+
+ wp_embed_register_handler( 'googlevideo', '#http://video\.google\.([A-Za-z.]{2,5})/videoplay\?docid=([\d-]+)(.*?)#i', 'wp_embed_handler_googlevideo' );
+
+ /**
+ * Filter the audio embed handler callback.
+ *
+ * @since 3.6.0
+ *
+ * @param callback $handler Audio embed handler callback function.
+ */
+ wp_embed_register_handler( 'audio', '#^https?://.+?\.(' . join( '|', wp_get_audio_extensions() ) . ')$#i', apply_filters( 'wp_audio_embed_handler', 'wp_embed_handler_audio' ), 9999 );
+
+ /**
+ * Filter the video embed handler callback.
+ *
+ * @since 3.6.0
+ *
+ * @param callback $handler Video embed handler callback function.
+ */
+ wp_embed_register_handler( 'video', '#^https?://.+?\.(' . join( '|', wp_get_video_extensions() ) . ')$#i', apply_filters( 'wp_video_embed_handler', 'wp_embed_handler_video' ), 9999 );
+}
+
+/**
+ * The Google Video embed handler callback. Google Video does not support oEmbed.
+ *
+ * @see WP_Embed::register_handler()
+ * @see WP_Embed::shortcode()
+ *
+ * @param array $matches The regex matches from the provided regex when calling {@link wp_embed_register_handler()}.
+ * @param array $attr Embed attributes.
+ * @param string $url The original URL that was matched by the regex.
+ * @param array $rawattr The original unmodified attributes.
+ * @return string The embed HTML.
+ */
+function wp_embed_handler_googlevideo( $matches, $attr, $url, $rawattr ) {
+ // If the user supplied a fixed width AND height, use it
+ if ( !empty($rawattr['width']) && !empty($rawattr['height']) ) {
+ $width = (int) $rawattr['width'];
+ $height = (int) $rawattr['height'];
+ } else {
+ list( $width, $height ) = wp_expand_dimensions( 425, 344, $attr['width'], $attr['height'] );
+ }
+
+ /**
+ * Filter the Google Video embed output.
+ *
+ * @since 2.9.0
+ *
+ * @param string $html Google Video HTML embed markup.
+ * @param array $matches The regex matches from the provided regex.
+ * @param array $attr An array of embed attributes.
+ * @param string $url The original URL that was matched by the regex.
+ * @param array $rawattr The original unmodified attributes.
+ */
+ return apply_filters( 'embed_googlevideo', '<embed type="application/x-shockwave-flash" src="http://video.google.com/googleplayer.swf?docid=' . esc_attr($matches[2]) . '&hl=en&fs=true" style="width:' . esc_attr($width) . 'px;height:' . esc_attr($height) . 'px" allowFullScreen="true" allowScriptAccess="always" />', $matches, $attr, $url, $rawattr );
+}
+
+/**
+ * YouTube embed handler callback.
+ *
+ * Catches URLs that can be parsed but aren't supported by oEmbed.
+ *
+ * @since 4.0.0
+ *
+ * @param array $matches The regex matches from the provided regex when calling
+ * {@see wp_embed_register_handler()}.
+ * @param array $attr Embed attributes.
+ * @param string $url The original URL that was matched by the regex.
+ * @param array $rawattr The original unmodified attributes.
+ * @return string The embed HTML.
+ */
+function wp_embed_handler_youtube( $matches, $attr, $url, $rawattr ) {
+ global $wp_embed;
+ $embed = $wp_embed->autoembed( "https://youtube.com/watch?v={$matches[2]}" );
+ /**
+ * Filter the YoutTube embed output.
+ *
+ * @since 4.0.0
+ *
+ * @see wp_embed_handler_youtube()
+ *
+ * @param string $embed YouTube embed output.
+ * @param array $attr An array of embed attributes.
+ * @param string $url The original URL that was matched by the regex.
+ * @param array $rawattr The original unmodified attributes.
+ */
+ return apply_filters( 'wp_embed_handler_youtube', $embed, $attr, $url, $rawattr );
+}
+
+/**
+ * Audio embed handler callback.
+ *
+ * @since 3.6.0
+ *
+ * @param array $matches The regex matches from the provided regex when calling {@link wp_embed_register_handler()}.
+ * @param array $attr Embed attributes.
+ * @param string $url The original URL that was matched by the regex.
+ * @param array $rawattr The original unmodified attributes.
+ * @return string The embed HTML.
+ */
+function wp_embed_handler_audio( $matches, $attr, $url, $rawattr ) {
+ $audio = sprintf( '[audio src="%s" /]', esc_url( $url ) );
+
+ /**
+ * Filter the audio embed output.
+ *
+ * @since 3.6.0
+ *
+ * @param string $audio Audio embed output.
+ * @param array $attr An array of embed attributes.
+ * @param string $url The original URL that was matched by the regex.
+ * @param array $rawattr The original unmodified attributes.
+ */
+ return apply_filters( 'wp_embed_handler_audio', $audio, $attr, $url, $rawattr );
+}
+
+/**
+ * Video embed handler callback.
+ *
+ * @since 3.6.0
+ *
+ * @param array $matches The regex matches from the provided regex when calling {@link wp_embed_register_handler()}.
+ * @param array $attr Embed attributes.
+ * @param string $url The original URL that was matched by the regex.
+ * @param array $rawattr The original unmodified attributes.
+ * @return string The embed HTML.
+ */
+function wp_embed_handler_video( $matches, $attr, $url, $rawattr ) {
+ $dimensions = '';
+ if ( ! empty( $rawattr['width'] ) && ! empty( $rawattr['height'] ) ) {
+ $dimensions .= sprintf( 'width="%d" ', (int) $rawattr['width'] );
+ $dimensions .= sprintf( 'height="%d" ', (int) $rawattr['height'] );
+ }
+ $video = sprintf( '[video %s src="%s" /]', $dimensions, esc_url( $url ) );
+
+ /**
+ * Filter the video embed output.
+ *
+ * @since 3.6.0
+ *
+ * @param string $video Video embed output.
+ * @param array $attr An array of embed attributes.
+ * @param string $url The original URL that was matched by the regex.
+ * @param array $rawattr The original unmodified attributes.
+ */
+ return apply_filters( 'wp_embed_handler_video', $video, $attr, $url, $rawattr );
+}
+
+/**
+ * Converts a shorthand byte value to an integer byte value.
+ *
+ * @since 2.3.0
+ *
+ * @param string $size A shorthand byte value.
+ * @return int An integer byte value.
+ */
+function wp_convert_hr_to_bytes( $size ) {
+ $size = strtolower( $size );
+ $bytes = (int) $size;
+ if ( strpos( $size, 'k' ) !== false )
+ $bytes = intval( $size ) * 1024;
+ elseif ( strpos( $size, 'm' ) !== false )
+ $bytes = intval($size) * 1024 * 1024;
+ elseif ( strpos( $size, 'g' ) !== false )
+ $bytes = intval( $size ) * 1024 * 1024 * 1024;
+ return $bytes;
+}
+
+/**
+ * Determine the maximum upload size allowed in php.ini.
+ *
+ * @since 2.5.0
+ *
+ * @return int Allowed upload size.
+ */
+function wp_max_upload_size() {
+ $u_bytes = wp_convert_hr_to_bytes( ini_get( 'upload_max_filesize' ) );
+ $p_bytes = wp_convert_hr_to_bytes( ini_get( 'post_max_size' ) );
+
+ /**
+ * Filter the maximum upload size allowed in php.ini.
+ *
+ * @since 2.5.0
+ *
+ * @param int $size Max upload size limit in bytes.
+ * @param int $u_bytes Maximum upload filesize in bytes.
+ * @param int $p_bytes Maximum size of POST data in bytes.
+ */
+ return apply_filters( 'upload_size_limit', min( $u_bytes, $p_bytes ), $u_bytes, $p_bytes );
+}
+
+/**
+ * Returns a WP_Image_Editor instance and loads file into it.
+ *
+ * @since 3.5.0
+ * @access public
+ *
+ * @param string $path Path to file to load
+ * @param array $args Additional data. Accepts { 'mime_type'=>string, 'methods'=>{string, string, ...} }
+ * @return WP_Image_Editor|WP_Error
+ */
+function wp_get_image_editor( $path, $args = array() ) {
+ $args['path'] = $path;
+
+ if ( ! isset( $args['mime_type'] ) ) {
+ $file_info = wp_check_filetype( $args['path'] );
+
+ // If $file_info['type'] is false, then we let the editor attempt to
+ // figure out the file type, rather than forcing a failure based on extension.
+ if ( isset( $file_info ) && $file_info['type'] )
+ $args['mime_type'] = $file_info['type'];
+ }
+
+ $implementation = _wp_image_editor_choose( $args );
+
+ if ( $implementation ) {
+ $editor = new $implementation( $path );
+ $loaded = $editor->load();
+
+ if ( is_wp_error( $loaded ) )
+ return $loaded;
+
+ return $editor;
+ }
+
+ return new WP_Error( 'image_no_editor', __('No editor could be selected.') );
+}
+
+/**
+ * Tests whether there is an editor that supports a given mime type or methods.
+ *
+ * @since 3.5.0
+ * @access public
+ *
+ * @param string|array $args Array of requirements. Accepts { 'mime_type'=>string, 'methods'=>{string, string, ...} }
+ * @return boolean true if an eligible editor is found; false otherwise
+ */
+function wp_image_editor_supports( $args = array() ) {
+ return (bool) _wp_image_editor_choose( $args );
+}
+
+/**
+ * Tests which editors are capable of supporting the request.
+ *
+ * @since 3.5.0
+ * @access private
+ *
+ * @param array $args Additional data. Accepts { 'mime_type'=>string, 'methods'=>{string, string, ...} }
+ * @return string|bool Class name for the first editor that claims to support the request. False if no editor claims to support the request.
+ */
+function _wp_image_editor_choose( $args = array() ) {
+ require_once ABSPATH . WPINC . '/class-wp-image-editor.php';
+ require_once ABSPATH . WPINC . '/class-wp-image-editor-gd.php';
+ require_once ABSPATH . WPINC . '/class-wp-image-editor-imagick.php';
+
+ /**
+ * Filter the list of image editing library classes.
+ *
+ * @since 3.5.0
+ *
+ * @param array $image_editors List of available image editors. Defaults are
+ * 'WP_Image_Editor_Imagick', 'WP_Image_Editor_GD'.
+ */
+ $implementations = apply_filters( 'wp_image_editors', array( 'WP_Image_Editor_Imagick', 'WP_Image_Editor_GD' ) );
+
+ foreach ( $implementations as $implementation ) {
+ if ( ! call_user_func( array( $implementation, 'test' ), $args ) )
+ continue;
+
+ if ( isset( $args['mime_type'] ) &&
+ ! call_user_func(
+ array( $implementation, 'supports_mime_type' ),
+ $args['mime_type'] ) ) {
+ continue;
+ }
+
+ if ( isset( $args['methods'] ) &&
+ array_diff( $args['methods'], get_class_methods( $implementation ) ) ) {
+ continue;
+ }
+
+ return $implementation;
+ }
+
+ return false;
+}
+
+/**
+ * Prints default plupload arguments.
+ *
+ * @since 3.4.0
+ */
+function wp_plupload_default_settings() {
+ global $wp_scripts;
+
+ $data = $wp_scripts->get_data( 'wp-plupload', 'data' );
+ if ( $data && false !== strpos( $data, '_wpPluploadSettings' ) )
+ return;
+
+ $max_upload_size = wp_max_upload_size();
+
+ $defaults = array(
+ 'runtimes' => 'html5,flash,silverlight,html4',
+ 'file_data_name' => 'async-upload', // key passed to $_FILE.
+ 'url' => admin_url( 'async-upload.php', 'relative' ),
+ 'flash_swf_url' => includes_url( 'js/plupload/plupload.flash.swf' ),
+ 'silverlight_xap_url' => includes_url( 'js/plupload/plupload.silverlight.xap' ),
+ 'filters' => array(
+ 'max_file_size' => $max_upload_size . 'b',
+ ),
+ );
+
+ /**
+ * Filter the Plupload default settings.
+ *
+ * @since 3.4.0
+ *
+ * @param array $defaults Default Plupload settings array.
+ */
+ $defaults = apply_filters( 'plupload_default_settings', $defaults );
+
+ $params = array(
+ 'action' => 'upload-attachment',
+ );
+
+ /**
+ * Filter the Plupload default parameters.
+ *
+ * @since 3.4.0
+ *
+ * @param array $params Default Plupload parameters array.
+ */
+ $params = apply_filters( 'plupload_default_params', $params );
+ $params['_wpnonce'] = wp_create_nonce( 'media-form' );
+ $defaults['multipart_params'] = $params;
+
+ $settings = array(
+ 'defaults' => $defaults,
+ 'browser' => array(
+ 'mobile' => wp_is_mobile(),
+ 'supported' => _device_can_upload(),
+ ),
+ 'limitExceeded' => is_multisite() && ! is_upload_space_available()
+ );
+
+ $script = 'var _wpPluploadSettings = ' . json_encode( $settings ) . ';';
+
+ if ( $data )
+ $script = "$data\n$script";
+
+ $wp_scripts->add_data( 'wp-plupload', 'data', $script );
+}
+add_action( 'customize_controls_enqueue_scripts', 'wp_plupload_default_settings' );
+
+/**
+ * Prepares an attachment post object for JS, where it is expected
+ * to be JSON-encoded and fit into an Attachment model.
+ *
+ * @since 3.5.0
+ *
+ * @param mixed $attachment Attachment ID or object.
+ * @return array Array of attachment details.
+ */
+function wp_prepare_attachment_for_js( $attachment ) {
+ if ( ! $attachment = get_post( $attachment ) )
+ return;
+
+ if ( 'attachment' != $attachment->post_type )
+ return;
+
+ $meta = wp_get_attachment_metadata( $attachment->ID );
+ if ( false !== strpos( $attachment->post_mime_type, '/' ) )
+ list( $type, $subtype ) = explode( '/', $attachment->post_mime_type );
+ else
+ list( $type, $subtype ) = array( $attachment->post_mime_type, '' );
+
+ $attachment_url = wp_get_attachment_url( $attachment->ID );
+
+ $response = array(
+ 'id' => $attachment->ID,
+ 'title' => $attachment->post_title,
+ 'filename' => wp_basename( $attachment->guid ),
+ 'url' => $attachment_url,
+ 'link' => get_attachment_link( $attachment->ID ),
+ 'alt' => get_post_meta( $attachment->ID, '_wp_attachment_image_alt', true ),
+ 'author' => $attachment->post_author,
+ 'description' => $attachment->post_content,
+ 'caption' => $attachment->post_excerpt,
+ 'name' => $attachment->post_name,
+ 'status' => $attachment->post_status,
+ 'uploadedTo' => $attachment->post_parent,
+ 'date' => strtotime( $attachment->post_date_gmt ) * 1000,
+ 'modified' => strtotime( $attachment->post_modified_gmt ) * 1000,
+ 'menuOrder' => $attachment->menu_order,
+ 'mime' => $attachment->post_mime_type,
+ 'type' => $type,
+ 'subtype' => $subtype,
+ 'icon' => wp_mime_type_icon( $attachment->ID ),
+ 'dateFormatted' => mysql2date( get_option('date_format'), $attachment->post_date ),
+ 'nonces' => array(
+ 'update' => false,
+ 'delete' => false,
+ 'edit' => false
+ ),
+ 'editLink' => false,
+ 'meta' => false,
+ );
+
+ $author = new WP_User( $attachment->post_author );
+ $response['authorName'] = $author->display_name;
+
+ if ( $attachment->post_parent ) {
+ $post_parent = get_post( $attachment->post_parent );
+ } else {
+ $post_parent = false;
+ }
+
+ if ( $post_parent ) {
+ $parent_type = get_post_type_object( $post_parent->post_type );
+ if ( $parent_type && $parent_type->show_ui && current_user_can( 'edit_post', $attachment->post_parent ) ) {
+ $response['uploadedToLink'] = get_edit_post_link( $attachment->post_parent, 'raw' );
+ }
+ $response['uploadedToTitle'] = $post_parent->post_title ? $post_parent->post_title : __( '(no title)' );
+ }
+
+ $attached_file = get_attached_file( $attachment->ID );
+ if ( file_exists( $attached_file ) ) {
+ $bytes = filesize( $attached_file );
+ $response['filesizeInBytes'] = $bytes;
+ $response['filesizeHumanReadable'] = size_format( $bytes );
+ }
+
+ if ( current_user_can( 'edit_post', $attachment->ID ) ) {
+ $response['nonces']['update'] = wp_create_nonce( 'update-post_' . $attachment->ID );
+ $response['nonces']['edit'] = wp_create_nonce( 'image_editor-' . $attachment->ID );
+ $response['editLink'] = get_edit_post_link( $attachment->ID, 'raw' );
+ }
+
+ if ( current_user_can( 'delete_post', $attachment->ID ) )
+ $response['nonces']['delete'] = wp_create_nonce( 'delete-post_' . $attachment->ID );
+
+ if ( $meta && 'image' === $type ) {
+ $sizes = array();
+
+ /** This filter is documented in wp-admin/includes/media.php */
+ $possible_sizes = apply_filters( 'image_size_names_choose', array(
+ 'thumbnail' => __('Thumbnail'),
+ 'medium' => __('Medium'),
+ 'large' => __('Large'),
+ 'full' => __('Full Size'),
+ ) );
+ unset( $possible_sizes['full'] );
+
+ // Loop through all potential sizes that may be chosen. Try to do this with some efficiency.
+ // First: run the image_downsize filter. If it returns something, we can use its data.
+ // If the filter does not return something, then image_downsize() is just an expensive
+ // way to check the image metadata, which we do second.
+ foreach ( $possible_sizes as $size => $label ) {
+
+ /** This filter is documented in wp-includes/media.php */
+ if ( $downsize = apply_filters( 'image_downsize', false, $attachment->ID, $size ) ) {
+ if ( ! $downsize[3] )
+ continue;
+ $sizes[ $size ] = array(
+ 'height' => $downsize[2],
+ 'width' => $downsize[1],
+ 'url' => $downsize[0],
+ 'orientation' => $downsize[2] > $downsize[1] ? 'portrait' : 'landscape',
+ );
+ } elseif ( isset( $meta['sizes'][ $size ] ) ) {
+ if ( ! isset( $base_url ) )
+ $base_url = str_replace( wp_basename( $attachment_url ), '', $attachment_url );
+
+ // Nothing from the filter, so consult image metadata if we have it.
+ $size_meta = $meta['sizes'][ $size ];
+
+ // We have the actual image size, but might need to further constrain it if content_width is narrower.
+ // Thumbnail, medium, and full sizes are also checked against the site's height/width options.
+ list( $width, $height ) = image_constrain_size_for_editor( $size_meta['width'], $size_meta['height'], $size, 'edit' );
+
+ $sizes[ $size ] = array(
+ 'height' => $height,
+ 'width' => $width,
+ 'url' => $base_url . $size_meta['file'],
+ 'orientation' => $height > $width ? 'portrait' : 'landscape',
+ );
+ }
+ }
+
+ $sizes['full'] = array( 'url' => $attachment_url );
+
+ if ( isset( $meta['height'], $meta['width'] ) ) {
+ $sizes['full']['height'] = $meta['height'];
+ $sizes['full']['width'] = $meta['width'];
+ $sizes['full']['orientation'] = $meta['height'] > $meta['width'] ? 'portrait' : 'landscape';
+ }
+
+ $response = array_merge( $response, array( 'sizes' => $sizes ), $sizes['full'] );
+ } elseif ( $meta && 'video' === $type ) {
+ if ( isset( $meta['width'] ) )
+ $response['width'] = (int) $meta['width'];
+ if ( isset( $meta['height'] ) )
+ $response['height'] = (int) $meta['height'];
+ }
+
+ if ( $meta && ( 'audio' === $type || 'video' === $type ) ) {
+ if ( isset( $meta['length_formatted'] ) )
+ $response['fileLength'] = $meta['length_formatted'];
+
+ $response['meta'] = array();
+ foreach ( wp_get_attachment_id3_keys( $attachment, 'js' ) as $key => $label ) {
+ $response['meta'][ $key ] = false;
+
+ if ( ! empty( $meta[ $key ] ) ) {
+ $response['meta'][ $key ] = $meta[ $key ];
+ }
+ }
+
+ $id = get_post_thumbnail_id( $attachment->ID );
+ if ( ! empty( $id ) ) {
+ list( $src, $width, $height ) = wp_get_attachment_image_src( $id, 'full' );
+ $response['image'] = compact( 'src', 'width', 'height' );
+ list( $src, $width, $height ) = wp_get_attachment_image_src( $id, 'thumbnail' );
+ $response['thumb'] = compact( 'src', 'width', 'height' );
+ } else {
+ $src = wp_mime_type_icon( $attachment->ID );
+ $width = 48;
+ $height = 64;
+ $response['image'] = compact( 'src', 'width', 'height' );
+ $response['thumb'] = compact( 'src', 'width', 'height' );
+ }
+ }
+
+ if ( function_exists('get_compat_media_markup') )
+ $response['compat'] = get_compat_media_markup( $attachment->ID, array( 'in_modal' => true ) );
+
+ /**
+ * Filter the attachment data prepared for JavaScript.
+ *
+ * @since 3.5.0
+ *
+ * @param array $response Array of prepared attachment data.
+ * @param int|object $attachment Attachment ID or object.
+ * @param array $meta Array of attachment meta data.
+ */
+ return apply_filters( 'wp_prepare_attachment_for_js', $response, $attachment, $meta );
+}
+
+/**
+ * Enqueues all scripts, styles, settings, and templates necessary to use
+ * all media JS APIs.
+ *
+ * @since 3.5.0
+ */
+function wp_enqueue_media( $args = array() ) {
+
+ // Enqueue me just once per page, please.
+ if ( did_action( 'wp_enqueue_media' ) )
+ return;
+
+ global $content_width, $wpdb, $wp_locale;
+
+ $defaults = array(
+ 'post' => null,
+ );
+ $args = wp_parse_args( $args, $defaults );
+
+ // We're going to pass the old thickbox media tabs to `media_upload_tabs`
+ // to ensure plugins will work. We will then unset those tabs.
+ $tabs = array(
+ // handler action suffix => tab label
+ 'type' => '',
+ 'type_url' => '',
+ 'gallery' => '',
+ 'library' => '',
+ );
+
+ /** This filter is documented in wp-admin/includes/media.php */
+ $tabs = apply_filters( 'media_upload_tabs', $tabs );
+ unset( $tabs['type'], $tabs['type_url'], $tabs['gallery'], $tabs['library'] );
+
+ $props = array(
+ 'link' => get_option( 'image_default_link_type' ), // db default is 'file'
+ 'align' => get_option( 'image_default_align' ), // empty default
+ 'size' => get_option( 'image_default_size' ), // empty default
+ );
+
+ $exts = array_merge( wp_get_audio_extensions(), wp_get_video_extensions() );
+ $mimes = get_allowed_mime_types();
+ $ext_mimes = array();
+ foreach ( $exts as $ext ) {
+ foreach ( $mimes as $ext_preg => $mime_match ) {
+ if ( preg_match( '#' . $ext . '#i', $ext_preg ) ) {
+ $ext_mimes[ $ext ] = $mime_match;
+ break;
+ }
+ }
+ }
+
+ $has_audio = $wpdb->get_var( "
+ SELECT ID
+ FROM $wpdb->posts
+ WHERE post_type = 'attachment'
+ AND post_mime_type LIKE 'audio%'
+ LIMIT 1
+ " );
+ $has_video = $wpdb->get_var( "
+ SELECT ID
+ FROM $wpdb->posts
+ WHERE post_type = 'attachment'
+ AND post_mime_type LIKE 'video%'
+ LIMIT 1
+ " );
+ $months = $wpdb->get_results( $wpdb->prepare( "
+ SELECT DISTINCT YEAR( post_date ) AS year, MONTH( post_date ) AS month
+ FROM $wpdb->posts
+ WHERE post_type = %s
+ ORDER BY post_date DESC
+ ", 'attachment' ) );
+ foreach ( $months as $month_year ) {
+ $month_year->text = sprintf( __( '%1$s %2$d' ), $wp_locale->get_month( $month_year->month ), $month_year->year );
+ }
+
+ $settings = array(
+ 'tabs' => $tabs,
+ 'tabUrl' => add_query_arg( array( 'chromeless' => true ), admin_url('media-upload.php') ),
+ 'mimeTypes' => wp_list_pluck( get_post_mime_types(), 0 ),
+ /** This filter is documented in wp-admin/includes/media.php */
+ 'captions' => ! apply_filters( 'disable_captions', '' ),
+ 'nonce' => array(
+ 'sendToEditor' => wp_create_nonce( 'media-send-to-editor' ),
+ ),
+ 'post' => array(
+ 'id' => 0,
+ ),
+ 'defaultProps' => $props,
+ 'attachmentCounts' => array(
+ 'audio' => ( $has_audio ) ? 1 : 0,
+ 'video' => ( $has_video ) ? 1 : 0
+ ),
+ 'embedExts' => $exts,
+ 'embedMimes' => $ext_mimes,
+ 'contentWidth' => $content_width,
+ 'months' => $months,
+ 'mediaTrash' => MEDIA_TRASH ? 1 : 0
+ );
+
+ $post = null;
+ if ( isset( $args['post'] ) ) {
+ $post = get_post( $args['post'] );
+ $settings['post'] = array(
+ 'id' => $post->ID,
+ 'nonce' => wp_create_nonce( 'update-post_' . $post->ID ),
+ );
+
+ $thumbnail_support = current_theme_supports( 'post-thumbnails', $post->post_type ) && post_type_supports( $post->post_type, 'thumbnail' );
+ if ( ! $thumbnail_support && 'attachment' === $post->post_type && $post->post_mime_type ) {
+ if ( 0 === strpos( $post->post_mime_type, 'audio/' ) ) {
+ $thumbnail_support = post_type_supports( 'attachment:audio', 'thumbnail' ) || current_theme_supports( 'post-thumbnails', 'attachment:audio' );
+ } elseif ( 0 === strpos( $post->post_mime_type, 'video/' ) ) {
+ $thumbnail_support = post_type_supports( 'attachment:video', 'thumbnail' ) || current_theme_supports( 'post-thumbnails', 'attachment:video' );
+ }
+ }
+
+ if ( $thumbnail_support ) {
+ $featured_image_id = get_post_meta( $post->ID, '_thumbnail_id', true );
+ $settings['post']['featuredImageId'] = $featured_image_id ? $featured_image_id : -1;
+ }
+ }
+
+ $hier = $post && is_post_type_hierarchical( $post->post_type );
+
+ $strings = array(
+ // Generic
+ 'url' => __( 'URL' ),
+ 'addMedia' => __( 'Add Media' ),
+ 'search' => __( 'Search' ),
+ 'select' => __( 'Select' ),
+ 'cancel' => __( 'Cancel' ),
+ 'update' => __( 'Update' ),
+ 'replace' => __( 'Replace' ),
+ 'remove' => __( 'Remove' ),
+ 'back' => __( 'Back' ),
+ /* translators: This is a would-be plural string used in the media manager.
+ If there is not a word you can use in your language to avoid issues with the
+ lack of plural support here, turn it into "selected: %d" then translate it.
+ */
+ 'selected' => __( '%d selected' ),
+ 'dragInfo' => __( 'Drag and drop to reorder images.' ),
+
+ // Upload
+ 'uploadFilesTitle' => __( 'Upload Files' ),
+ 'uploadImagesTitle' => __( 'Upload Images' ),
+
+ // Library
+ 'mediaLibraryTitle' => __( 'Media Library' ),
+ 'insertMediaTitle' => __( 'Insert Media' ),
+ 'createNewGallery' => __( 'Create a new gallery' ),
+ 'createNewPlaylist' => __( 'Create a new playlist' ),
+ 'createNewVideoPlaylist' => __( 'Create a new video playlist' ),
+ 'returnToLibrary' => __( '← Return to library' ),
+ 'allMediaItems' => __( 'All media items' ),
+ 'allMediaTypes' => __( 'All media types' ),
+ 'allDates' => __( 'All dates' ),
+ 'noItemsFound' => __( 'No items found.' ),
+ 'insertIntoPost' => $hier ? __( 'Insert into page' ) : __( 'Insert into post' ),
+ 'unattached' => __( 'Unattached' ),
+ 'trash' => __( 'Trash' ),
+ 'uploadedToThisPost' => $hier ? __( 'Uploaded to this page' ) : __( 'Uploaded to this post' ),
+ 'warnDelete' => __( "You are about to permanently delete this item.\n 'Cancel' to stop, 'OK' to delete." ),
+ 'warnBulkDelete' => __( "You are about to permanently delete these items.\n 'Cancel' to stop, 'OK' to delete." ),
+ 'warnBulkTrash' => __( "You are about to trash these items.\n 'Cancel' to stop, 'OK' to delete." ),
+ 'bulkSelect' => __( 'Bulk Select' ),
+ 'cancelSelection' => __( 'Cancel Selection' ),
+ 'trashSelected' => __( 'Trash Selected' ),
+ 'untrashSelected' => __( 'Untrash Selected' ),
+ 'deleteSelected' => __( 'Delete Selected' ),
+ 'deletePermanently' => __( 'Delete Permanently' ),
+ 'apply' => __( 'Apply' ),
+ 'filterByDate' => __( 'Filter by date' ),
+ 'filterByType' => __( 'Filter by type' ),
+ 'searchMediaLabel' => __( 'Search Media' ),
+
+ // Library Details
+ 'attachmentDetails' => __( 'Attachment Details' ),
+
+ // From URL
+ 'insertFromUrlTitle' => __( 'Insert from URL' ),
+
+ // Featured Images
+ 'setFeaturedImageTitle' => __( 'Set Featured Image' ),
+ 'setFeaturedImage' => __( 'Set featured image' ),
+
+ // Gallery
+ 'createGalleryTitle' => __( 'Create Gallery' ),
+ 'editGalleryTitle' => __( 'Edit Gallery' ),
+ 'cancelGalleryTitle' => __( '← Cancel Gallery' ),
+ 'insertGallery' => __( 'Insert gallery' ),
+ 'updateGallery' => __( 'Update gallery' ),
+ 'addToGallery' => __( 'Add to gallery' ),
+ 'addToGalleryTitle' => __( 'Add to Gallery' ),
+ 'reverseOrder' => __( 'Reverse order' ),
+
+ // Edit Image
+ 'imageDetailsTitle' => __( 'Image Details' ),
+ 'imageReplaceTitle' => __( 'Replace Image' ),
+ 'imageDetailsCancel' => __( 'Cancel Edit' ),
+ 'editImage' => __( 'Edit Image' ),
+
+ // Crop Image
+ 'chooseImage' => __( 'Choose Image' ),
+ 'selectAndCrop' => __( 'Select and Crop' ),
+ 'skipCropping' => __( 'Skip Cropping' ),
+ 'cropImage' => __( 'Crop Image' ),
+ 'cropYourImage' => __( 'Crop your image' ),
+ 'cropping' => __( 'Cropping…' ),
+ 'suggestedDimensions' => __( 'Suggested image dimensions:' ),
+ 'cropError' => __( 'There has been an error cropping your image.' ),
+
+ // Edit Audio
+ 'audioDetailsTitle' => __( 'Audio Details' ),
+ 'audioReplaceTitle' => __( 'Replace Audio' ),
+ 'audioAddSourceTitle' => __( 'Add Audio Source' ),
+ 'audioDetailsCancel' => __( 'Cancel Edit' ),
+
+ // Edit Video
+ 'videoDetailsTitle' => __( 'Video Details' ),
+ 'videoReplaceTitle' => __( 'Replace Video' ),
+ 'videoAddSourceTitle' => __( 'Add Video Source' ),
+ 'videoDetailsCancel' => __( 'Cancel Edit' ),
+ 'videoSelectPosterImageTitle' => __( 'Select Poster Image' ),
+ 'videoAddTrackTitle' => __( 'Add Subtitles' ),
+
+ // Playlist
+ 'playlistDragInfo' => __( 'Drag and drop to reorder tracks.' ),
+ 'createPlaylistTitle' => __( 'Create Audio Playlist' ),
+ 'editPlaylistTitle' => __( 'Edit Audio Playlist' ),
+ 'cancelPlaylistTitle' => __( '← Cancel Audio Playlist' ),
+ 'insertPlaylist' => __( 'Insert audio playlist' ),
+ 'updatePlaylist' => __( 'Update audio playlist' ),
+ 'addToPlaylist' => __( 'Add to audio playlist' ),
+ 'addToPlaylistTitle' => __( 'Add to Audio Playlist' ),
+
+ // Video Playlist
+ 'videoPlaylistDragInfo' => __( 'Drag and drop to reorder videos.' ),
+ 'createVideoPlaylistTitle' => __( 'Create Video Playlist' ),
+ 'editVideoPlaylistTitle' => __( 'Edit Video Playlist' ),
+ 'cancelVideoPlaylistTitle' => __( '← Cancel Video Playlist' ),
+ 'insertVideoPlaylist' => __( 'Insert video playlist' ),
+ 'updateVideoPlaylist' => __( 'Update video playlist' ),
+ 'addToVideoPlaylist' => __( 'Add to video playlist' ),
+ 'addToVideoPlaylistTitle' => __( 'Add to Video Playlist' ),
+
+ // Media Library
+ 'editMetadata' => __( 'Edit Metadata' ),
+ 'noMedia' => __( 'No media attachments found.' ),
+ );
+
+ /**
+ * Filter the media view settings.
+ *
+ * @since 3.5.0
+ *
+ * @param array $settings List of media view settings.
+ * @param WP_Post $post Post object.
+ */
+ $settings = apply_filters( 'media_view_settings', $settings, $post );
+
+ /**
+ * Filter the media view strings.
+ *
+ * @since 3.5.0
+ *
+ * @param array $strings List of media view strings.
+ * @param WP_Post $post Post object.
+ */
+ $strings = apply_filters( 'media_view_strings', $strings, $post );
+
+ $strings['settings'] = $settings;
+
+ // Ensure we enqueue media-editor first, that way media-views is
+ // registered internally before we try to localize it. see #24724.
+ wp_enqueue_script( 'media-editor' );
+ wp_localize_script( 'media-views', '_wpMediaViewsL10n', $strings );
+
+ wp_enqueue_script( 'media-audiovideo' );
+ wp_enqueue_style( 'media-views' );
+ if ( is_admin() ) {
+ wp_enqueue_script( 'mce-view' );
+ wp_enqueue_script( 'image-edit' );
+ }
+ wp_enqueue_style( 'imgareaselect' );
+ wp_plupload_default_settings();
+
+ require_once ABSPATH . WPINC . '/media-template.php';
+ add_action( 'admin_footer', 'wp_print_media_templates' );
+ add_action( 'wp_footer', 'wp_print_media_templates' );
+ add_action( 'customize_controls_print_footer_scripts', 'wp_print_media_templates' );
+
+ /**
+ * Fires at the conclusion of wp_enqueue_media().
+ *
+ * @since 3.5.0
+ */
+ do_action( 'wp_enqueue_media' );
+}
+
+/**
+ * Retrieve media attached to the passed post.
+ *
+ * @since 3.6.0
+ *
+ * @param string $type Mime type.
+ * @param int|WP_Post $post Optional. Post ID or WP_Post object. Default is global $post.
+ * @return array Found attachments.
+ */
+function get_attached_media( $type, $post = 0 ) {
+ if ( ! $post = get_post( $post ) )
+ return array();
+
+ $args = array(
+ 'post_parent' => $post->ID,
+ 'post_type' => 'attachment',
+ 'post_mime_type' => $type,
+ 'posts_per_page' => -1,
+ 'orderby' => 'menu_order',
+ 'order' => 'ASC',
+ );
+
+ /**
+ * Filter arguments used to retrieve media attached to the given post.
+ *
+ * @since 3.6.0
+ *
+ * @param array $args Post query arguments.
+ * @param string $type Mime type of the desired media.
+ * @param mixed $post Post ID or object.
+ */
+ $args = apply_filters( 'get_attached_media_args', $args, $type, $post );
+
+ $children = get_children( $args );
+
+ /**
+ * Filter the list of media attached to the given post.
+ *
+ * @since 3.6.0
+ *
+ * @param array $children Associative array of media attached to the given post.
+ * @param string $type Mime type of the media desired.
+ * @param mixed $post Post ID or object.
+ */
+ return (array) apply_filters( 'get_attached_media', $children, $type, $post );
+}
+
+/**
+ * Check the content blob for an <audio>, <video> <object>, <embed>, or <iframe>
+ *
+ * @since 3.6.0
+ *
+ * @param string $content A string which might contain media data.
+ * @param array $types array of media types: 'audio', 'video', 'object', 'embed', or 'iframe'
+ * @return array A list of found HTML media embeds
+ */
+function get_media_embedded_in_content( $content, $types = null ) {
+ $html = array();
+ $allowed_media_types = array( 'audio', 'video', 'object', 'embed', 'iframe' );
+ if ( ! empty( $types ) ) {
+ if ( ! is_array( $types ) )
+ $types = array( $types );
+ $allowed_media_types = array_intersect( $allowed_media_types, $types );
+ }
+
+ foreach ( $allowed_media_types as $tag ) {
+ if ( preg_match( '#' . get_tag_regex( $tag ) . '#', $content, $matches ) ) {
+ $html[] = $matches[0];
+ }
+ }
+
+ return $html;
+}
+
+/**
+ * Retrieve galleries from the passed post's content.
+ *
+ * @since 3.6.0
+ *
+ * @param int|WP_Post $post Optional. Post ID or object.
+ * @param bool $html Whether to return HTML or data in the array.
+ * @return array A list of arrays, each containing gallery data and srcs parsed
+ * from the expanded shortcode.
+ */
+function get_post_galleries( $post, $html = true ) {
+ if ( ! $post = get_post( $post ) )
+ return array();
+
+ if ( ! has_shortcode( $post->post_content, 'gallery' ) )
+ return array();
+
+ $galleries = array();
+ if ( preg_match_all( '/' . get_shortcode_regex() . '/s', $post->post_content, $matches, PREG_SET_ORDER ) ) {
+ foreach ( $matches as $shortcode ) {
+ if ( 'gallery' === $shortcode[2] ) {
+ $srcs = array();
+
+ $gallery = do_shortcode_tag( $shortcode );
+ if ( $html ) {
+ $galleries[] = $gallery;
+ } else {
+ preg_match_all( '#src=([\'"])(.+?)\1#is', $gallery, $src, PREG_SET_ORDER );
+ if ( ! empty( $src ) ) {
+ foreach ( $src as $s )
+ $srcs[] = $s[2];
+ }
+
+ $data = shortcode_parse_atts( $shortcode[3] );
+ $data['src'] = array_values( array_unique( $srcs ) );
+ $galleries[] = $data;
+ }
+ }
+ }
+ }
+
+ /**
+ * Filter the list of all found galleries in the given post.
+ *
+ * @since 3.6.0
+ *
+ * @param array $galleries Associative array of all found post galleries.
+ * @param WP_Post $post Post object.
+ */
+ return apply_filters( 'get_post_galleries', $galleries, $post );
+}
+
+/**
+ * Check a specified post's content for gallery and, if present, return the first
+ *
+ * @since 3.6.0
+ *
+ * @param int|WP_Post $post Optional. Post ID or WP_Post object. Default is global $post.
+ * @param bool $html Whether to return HTML or data.
+ * @return string|array Gallery data and srcs parsed from the expanded shortcode.
+ */
+function get_post_gallery( $post = 0, $html = true ) {
+ $galleries = get_post_galleries( $post, $html );
+ $gallery = reset( $galleries );
+
+ /**
+ * Filter the first-found post gallery.
+ *
+ * @since 3.6.0
+ *
+ * @param array $gallery The first-found post gallery.
+ * @param int|WP_Post $post Post ID or object.
+ * @param array $galleries Associative array of all found post galleries.
+ */
+ return apply_filters( 'get_post_gallery', $gallery, $post, $galleries );
+}
+
+/**
+ * Retrieve the image srcs from galleries from a post's content, if present
+ *
+ * @since 3.6.0
+ *
+ * @param int|WP_Post $post Optional. Post ID or WP_Post object. Default is global $post.
+ * @return array A list of lists, each containing image srcs parsed.
+ * from an expanded shortcode
+ */
+function get_post_galleries_images( $post = 0 ) {
+ $galleries = get_post_galleries( $post, false );
+ return wp_list_pluck( $galleries, 'src' );
+}
+
+/**
+ * Check a post's content for galleries and return the image srcs for the first found gallery
+ *
+ * @since 3.6.0
+ *
+ * @param int|WP_Post $post Optional. Post ID or WP_Post object. Default is global $post.
+ * @return array A list of a gallery's image srcs in order.
+ */
+function get_post_gallery_images( $post = 0 ) {
+ $gallery = get_post_gallery( $post, false );
+ return empty( $gallery['src'] ) ? array() : $gallery['src'];
+}
+
+/**
+ * Maybe attempt to generate attachment metadata, if missing.
+ *
+ * @since 3.9.0
+ *
+ * @param WP_Post $attachment Attachment object.
+ */
+function wp_maybe_generate_attachment_metadata( $attachment ) {
+ if ( empty( $attachment ) || ( empty( $attachment->ID ) || ! $attachment_id = (int) $attachment->ID ) ) {
+ return;
+ }
+
+ $file = get_attached_file( $attachment_id );
+ $meta = wp_get_attachment_metadata( $attachment_id );
+ if ( empty( $meta ) && file_exists( $file ) ) {
+ $_meta = get_post_meta( $attachment_id );
+ $regeneration_lock = 'wp_generating_att_' . $attachment_id;
+ if ( ! array_key_exists( '_wp_attachment_metadata', $_meta ) && ! get_transient( $regeneration_lock ) ) {
+ set_transient( $regeneration_lock, $file );
+ wp_update_attachment_metadata( $attachment_id, wp_generate_attachment_metadata( $attachment_id, $file ) );
+ delete_transient( $regeneration_lock );
+ }
+ }
+}
+
+/**
+ * Try to convert an attachment URL into a post ID.
+ *
+ * @since 4.0.0
+ *
+ * @global wpdb $wpdb WordPress database access abstraction object.
+ *
+ * @param string $url The URL to resolve.
+ * @return int The found post ID.
+ */
+function attachment_url_to_postid( $url ) {
+ global $wpdb;
+
+ $dir = wp_upload_dir();
+ $path = ltrim( $url, $dir['baseurl'] . '/' );
+
+ $sql = $wpdb->prepare(
+ "SELECT post_id FROM $wpdb->postmeta WHERE meta_key = '_wp_attached_file' AND meta_value = %s",
+ $path
+ );
+ $post_id = $wpdb->get_var( $sql );
+ if ( ! empty( $post_id ) ) {
+ return (int) $post_id;
+ }
+}
+
+/**
+ * Return the URls for CSS files used in an <iframe>-sandbox'd TinyMCE media view
+ *
+ * @since 4.0.0
+ *
+ * @global $wp_version
+ *
+ * @return array The relevant CSS file URLs.
+ */
+function wpview_media_sandbox_styles() {
+ $version = 'ver=' . $GLOBALS['wp_version'];
+ $mediaelement = includes_url( "js/mediaelement/mediaelementplayer.min.css?$version" );
+ $wpmediaelement = includes_url( "js/mediaelement/wp-mediaelement.css?$version" );
+
+ return array( $mediaelement, $wpmediaelement );
+}