Changeset 21680 for trunk/wp-includes/media.php

Timestamp:

08/31/2012 02:04:40 AM (14 years ago)

Author:

nacin

Message:

Introduce wp_prepare_attachment_for_js(). Prepares an attachment post object to be JSON-encoded and fitted into an Attachment model, for 3.5 media.

props koopersmith. see #21390.

File:

• trunk/wp-includes/media.php (modified) (1 diff)

trunk/wp-includes/media.php

@@ -1531 +1531 @@
 }
 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 );
+        list( $type, $subtype ) = explode( '/', $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,
+                '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'        => $attachment->post_date_gmt . ' UTC',
+                'modified'    => $attachment->post_modified_gmt . ' UTC',
+                'mime'        => $attachment->post_mime_type,
+                'type'        => $type,
+                'subtype'     => $subtype,
+        );
+
+        if ( 'image' === $type ) {
+                $sizes = array();
+                $base_url = str_replace( wp_basename( $attachment_url ), '', $attachment_url );
+
+                foreach ( $meta['sizes'] as $slug => $size ) {
+                        $sizes[ $slug ] = array(
+                                'height'      => $size['height'],
+                                'width'       => $size['width'],
+                                'url'         => $base_url . $size['file'],
+                                'orientation' => $size['height'] > $size['width'] ? 'portrait' : 'landscape',
+                        );
+                }
+
+                $response = array_merge( $response, array(
+                        'height'      => $meta['height'],
+                        'width'       => $meta['width'],
+                        'sizes'       => $sizes,
+                        'orientation' => $meta['height'] > $meta['width'] ? 'portrait' : 'landscape',
+                ) );
+        }
+
+        return apply_filters( 'wp_prepare_attachment_for_js', $response, $attachment, $meta );
+}