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<?php
/**
* @package WP Subtitle
* @subpackage Subtitle Class
*/
class WP_Subtitle {
/**
* Post ID
*
* @var int
*/
private $post_id = 0;
/**
* Constructor
*
* @param int|WP_Post $post Post object or ID.
*/
public function __construct( $post ) {
// Post ID
if ( is_a( $post, 'WP_Post' ) ) {
$this->post_id = absint( $post->ID );
} else {
$this->post_id = absint( $post );
}
}
/**
* The Subtitle
*
* @param array $args Display parameters.
*/
public function the_subtitle( $args = '' ) {
echo wp_kses_post( $this->get_subtitle( $args ) );
}
/**
* Get the Subtitle
*
* @uses apply_filters( 'wps_subtitle' )
*
* @param array $args Display parameters.
* @return string The filtered subtitle meta value.
*/
public function get_subtitle( $args = '' ) {
if ( $this->post_id && $this->is_supported_post_type() ) {
$args = wp_parse_args(
$args,
array(
'before' => '',
'after' => '',
)
);
$subtitle = apply_filters( 'wps_subtitle', $this->get_raw_subtitle(), get_post( $this->post_id ) );
if ( ! empty( $subtitle ) ) {
$subtitle = $args['before'] . $subtitle . $args['after'];
}
return $subtitle;
}
return '';
}
/**
* Get Raw Subtitle
*
* @return string The subtitle meta value.
*/
public function get_raw_subtitle() {
if ( is_preview() ) {
if ( isset( $_GET['preview_id'] ) ) {
$p = wp_get_post_autosave( $this->post_id );
return get_post_meta( $p->ID, $this->get_post_meta_key(), true );
}
$revisions = wp_get_post_revisions( $this->post_id );
if ( $revisions ) {
$p = array_shift( $revisions );
return get_post_meta( $p->ID, $this->get_post_meta_key(), true );
}
}
return get_post_meta( $this->post_id, $this->get_post_meta_key(), true );
}
/**
* Get Default Subtitle
*
* @since 2.8
*
* @return string Default title.
*/
public function get_default_subtitle() {
return apply_filters( 'wps_default_subtitle', '', $this->post_id );
}
/**
* Update Subtitle
*
* @param string $subtitle Subtitle.
* @return int|bool Meta ID if new entry. True if updated, false if not updated or the same as current value.
*/
public function update_subtitle( $subtitle ) {
// Uses `update_metadata` as `update_post_meta` doesn't work with revisions.
return update_metadata( 'post', $this->post_id, $this->get_post_meta_key(), $subtitle );
}
/**
* Is Current Subtitle?
*
* @since 2.9
*
* @param string $subtitle Subtitle value.
* @return boolean
*/
public function is_current_subtitle( $subtitle ) {
return get_metadata( 'post', $this->post_id, 'wps_subtitle', true ) === $subtitle;
}
/**
* Get Post Meta Key
*
* @uses apply_filters( 'wps_subtitle_key' )
*
* @return string The subtitle meta key.
*/
private function get_post_meta_key() {
return apply_filters( 'wps_subtitle_key', 'wps_subtitle', $this->post_id );
}
/**
* Restore revision.
*
* @since 2.9
*
* @param int $revision_id Revision ID.
*/
public function restore_post_revision( $revision_id ) {
$meta_value = get_metadata( 'post', $revision_id, $this->get_post_meta_key(), true );
if ( $meta_value ) {
$this->update_subtitle( $meta_value );
} else {
delete_post_meta( $this->post_id, $this->get_post_meta_key() );
}
}
/**
* Is Supported Post Type?
*
* @return boolean
*/
private function is_supported_post_type() {
$post_types = $this->get_supported_post_types();
return in_array( get_post_type( $this->post_id ), $post_types, true );
}
/**
* Get Supported Post Types
*
* @since 2.7
*
* @return array Array of supported post types.
*/
private function get_supported_post_types() {
$post_types = (array) get_post_types(
array(
'_builtin' => false,
)
);
$post_types = array_merge( $post_types, array( 'post', 'page', 'revision' ) );
$supported = array();
foreach ( $post_types as $post_type ) {
if ( post_type_supports( $post_type, 'wps_subtitle' ) ) {
$supported[] = $post_type;
}
}
return $supported;
}
/**
* Current User Can Edit
*
* @since 2.8
*
* @return boolean
*/
public function current_user_can_edit() {
// Check supported post type
if ( $this->is_supported_post_type() ) {
$post_type = get_post_type( $this->post_id );
$revision = wp_is_post_revision( $this->post_id );
if ( $revision ) {
$post_type = get_post_type( $revision );
}
// Current user can...
switch ( $post_type ) {
// ... edit page
case 'page':
return current_user_can( 'edit_page', $this->post_id );
// ... edit post
case 'post':
return current_user_can( 'edit_post', $this->post_id );
// ... edit other post type
default:
$post_types = (array) get_post_types(
array(
'_builtin' => false,
),
'objects'
);
return current_user_can( $post_types[ $post_type ]->cap->edit_post, $this->post_id );
}
}
return false;
}
}