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The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )apply_filters( "hook_name", "what_to_filter" ).Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
This hook occurs 3 times in this file.
| Line | Code |
|---|---|
| 1624 | |
| 1625 | /** |
| 1626 | * Filters the media metadata. |
| 1627 | * |
| 1628 | * @since 2.5.0 |
| 1629 | * |
| 1630 | * @param string $media_dims The HTML markup containing the media dimensions. |
| 1631 | * @param WP_Post $post The WP_Post attachment object. |
| 1632 | */ |
| 1633 | $media_dims = apply_filters( 'media_meta', $media_dims, $post ); |
| 1634 | |
| 1635 | $image_edit_button = ''; |
| 1636 | |
| 1637 | if ( wp_attachment_is_image( $post->ID ) && wp_image_editor_supports( array( 'mime_type' => $post->post_mime_type ) ) ) { |
| 1638 | $nonce = wp_create_nonce( "image_editor-$post->ID" ); |
| 1639 | $image_edit_button = "<input type='button' id='imgedit-open-btn-$post->ID' onclick='imageEdit.open( $post->ID, \"$nonce\" )' class='button' value='" . esc_attr__( 'Edit Image' ) . "' /> <span class='spinner'></span>"; |
| 1640 | } |
| 1641 | |
| 1642 | $attachment_url = get_permalink( $attachment_id ); |
| Line | Code |
| 1889 | $form_fields['post_title'], |
| 1890 | $form_fields['post_excerpt'], |
| 1891 | $form_fields['post_content'], |
| 1892 | $form_fields['url'], |
| 1893 | $form_fields['menu_order'], |
| 1894 | $form_fields['image_url'] |
| 1895 | ); |
| 1896 | |
| 1897 | /** This filter is documented in wp-admin/includes/media.php */ |
| 1898 | $media_meta = apply_filters( 'media_meta', '', $post ); |
| 1899 | |
| 1900 | $defaults = array( |
| 1901 | 'input' => 'text', |
| 1902 | 'required' => false, |
| 1903 | 'value' => '', |
| 1904 | 'extra_rows' => array(), |
| 1905 | 'show_in_edit' => true, |
| 1906 | 'show_in_modal' => true, |
| 1907 | ); |
| Line | Code |
| 3235 | $filename = esc_html( wp_basename( $file ) ); |
| 3236 | |
| 3237 | $media_dims = ''; |
| 3238 | $meta = wp_get_attachment_metadata( $attachment_id ); |
| 3239 | |
| 3240 | if ( isset( $meta['width'], $meta['height'] ) ) { |
| 3241 | $media_dims .= "<span id='media-dims-$attachment_id'>{$meta['width']} × {$meta['height']}</span> "; |
| 3242 | } |
| 3243 | /** This filter is documented in wp-admin/includes/media.php */ |
| 3244 | $media_dims = apply_filters( 'media_meta', $media_dims, $post ); |
| 3245 | |
| 3246 | $att_url = wp_get_attachment_url( $attachment_id ); |
| 3247 | |
| 3248 | ?> |
| 3249 | <div class="misc-pub-section misc-pub-attachment"> |
| 3250 | <label for="attachment_url"><?php _e( 'File URL:' ); ?></label> |
| 3251 | <input type="text" class="widefat urlfield" readonly="readonly" name="attachment_url" id="attachment_url" value="<?php echo esc_attr( $att_url ); ?>" /> |
| 3252 | </div> |
| 3253 | <div class="misc-pub-section misc-pub-filename"> |