/**
 * Displays the image and editor in the post editor
 *
 * @since 3.5.0
 */
function edit_form_image_editor($post)
{
    $open = isset($_GET['image-editor']);
    if ($open) {
        require_once ABSPATH . 'wp-admin/includes/image-edit.php';
    }
    $thumb_url = false;
    if ($attachment_id = intval($post->ID)) {
        $thumb_url = wp_get_attachment_image_src($attachment_id, array(900, 450), true);
    }
    $alt_text = get_post_meta($post->ID, '_wp_attachment_image_alt', true);
    $att_url = wp_get_attachment_url($post->ID);
    ?>
	<div class="wp_attachment_holder">
	<?php 
    if (wp_attachment_is_image($post->ID)) {
        $image_edit_button = '';
        if (wp_image_editor_supports(array('mime_type' => $post->post_mime_type))) {
            $nonce = wp_create_nonce("image_editor-{$post->ID}");
            $image_edit_button = "<input type='button' id='imgedit-open-btn-{$post->ID}' onclick='imageEdit.open( {$post->ID}, \"{$nonce}\" )' class='button' value='" . esc_attr__('Edit Image') . "' /> <span class='spinner'></span>";
        }
        ?>

		<div class="imgedit-response" id="imgedit-response-<?php 
        echo $attachment_id;
        ?>
"></div>

		<div<?php 
        if ($open) {
            echo ' style="display:none"';
        }
        ?>
 class="wp_attachment_image" id="media-head-<?php 
        echo $attachment_id;
        ?>
">
			<p id="thumbnail-head-<?php 
        echo $attachment_id;
        ?>
"><img class="thumbnail" src="<?php 
        echo set_url_scheme($thumb_url[0]);
        ?>
" style="max-width:100%" alt="" /></p>
			<p><?php 
        echo $image_edit_button;
        ?>
</p>
		</div>
		<div<?php 
        if (!$open) {
            echo ' style="display:none"';
        }
        ?>
 class="image-editor" id="image-editor-<?php 
        echo $attachment_id;
        ?>
">
			<?php 
        if ($open) {
            wp_image_editor($attachment_id);
        }
        ?>
		</div>
	<?php 
    } elseif ($attachment_id && 0 === strpos($post->post_mime_type, 'audio/')) {
        wp_maybe_generate_attachment_metadata($post);
        echo wp_audio_shortcode(array('src' => $att_url));
    } elseif ($attachment_id && 0 === strpos($post->post_mime_type, 'video/')) {
        wp_maybe_generate_attachment_metadata($post);
        $meta = wp_get_attachment_metadata($attachment_id);
        $w = !empty($meta['width']) ? min($meta['width'], 640) : 0;
        $h = !empty($meta['height']) ? $meta['height'] : 0;
        if ($h && $w < $meta['width']) {
            $h = round($meta['height'] * $w / $meta['width']);
        }
        $attr = array('src' => $att_url);
        if (!empty($w) && !empty($h)) {
            $attr['width'] = $w;
            $attr['height'] = $h;
        }
        $thumb_id = get_post_thumbnail_id($attachment_id);
        if (!empty($thumb_id)) {
            $attr['poster'] = wp_get_attachment_url($thumb_id);
        }
        echo wp_video_shortcode($attr);
    }
    ?>
	</div>
	<div class="wp_attachment_details edit-form-section">
		<p>
			<label for="attachment_caption"><strong><?php 
    _e('Caption');
    ?>
</strong></label><br />
//.........这里部分代码省略.........

 static function generate_metadata($attachment_id, $file)
 {
     require_once ABSPATH . 'wp-admin/includes/image.php';
     wp_maybe_generate_attachment_metadata(get_post($attachment_id));
     //$attachment_data = wp_generate_attachment_metadata( $attachment_id, $file );
     //wp_update_attachment_metadata( $attachment_id, $attachment_data );
 }