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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"> |