<?php
// exit if accessed directly
if ( ! defined( 'ABSPATH' ) )
exit;
/**
* Post_Views_Counter_Admin class.
*
* @class Post_Views_Counter_Admin
*/
class Post_Views_Counter_Admin {
/**
* Class constructor.
*
* @return void
*/
public function __construct() {
// actions
add_action( 'plugins_loaded', [ $this, 'init_block_editor' ] );
add_action( 'admin_enqueue_scripts', [ $this, 'register_chartjs' ], 9 );
}
/**
* Register Chart.js.
*
* @return void
*/
public function register_chartjs() {
wp_register_script( 'pvc-chartjs', POST_VIEWS_COUNTER_URL . '/assets/chartjs/chart.min.js', [ 'jquery' ], '4.5.0', true );
}
/**
* Init block editor actions.
*
* @return void
*/
public function init_block_editor() {
add_action( 'rest_api_init', [ $this, 'block_editor_rest_api_init' ] );
add_action( 'enqueue_block_editor_assets', [ $this, 'block_editor_enqueue_scripts' ] );
}
/**
* Register REST API block editor endpoints.
*
* @return void
*/
public function block_editor_rest_api_init() {
// get views route
register_rest_route(
'post-views-counter',
'/update-post-views/',
[
'methods' => [ 'POST' ],
'callback' => [ $this, 'block_editor_update_callback' ],
'permission_callback' => [ $this, 'check_rest_route_permissions' ],
'args' => [
'id' => [
'sanitize_callback' => 'absint',
]
]
]
);
}
/**
* Check whether user has permissions to perform post views update in block editor.
*
* @param object $request WP_REST_Request
* @return bool|WP_Error
*/
public function check_rest_route_permissions( $request ) {
// break if current user can't edit this post
if ( ! current_user_can( 'edit_post', (int) $request->get_param( 'id' ) ) )
return new WP_Error( 'pvc-user-not-allowed', __( 'You are not allowed to edit this item.', 'post-views-counter' ) );
// break if views editing is restricted
if ( (bool) Post_Views_Counter()->options['display']['restrict_edit_views'] === true && ! current_user_can( apply_filters( 'pvc_restrict_edit_capability', 'manage_options' ) ) )
return new WP_Error( 'pvc-user-not-allowed', __( 'You are not allowed to edit this item.', 'post-views-counter' ) );
return true;
}
/**
* REST API callback for block editor endpoint.
*
* @param array $data
* @return string|int
*/
public function block_editor_update_callback( $data ) {
// get main instance
$pvc = Post_Views_Counter();
// cast post ID
$post_id = ! empty( $data['id'] ) ? (int) $data['id'] : 0;
// cast post views
$post_views = ! empty( $data['post_views'] ) ? (int) $data['post_views'] : 0;
// get countable post types
$post_types = (array) $pvc->options['general']['post_types_count'];
// check if post exists
$post = get_post( $post_id );
// whether to count this post type or not
if ( empty( $post_types ) || empty( $post ) || ! in_array( $post->post_type, $post_types, true ) )
return wp_send_json_error( __( 'Invalid post ID.', 'post-views-counter' ) );
// break if current user can't edit this post
if ( ! current_user_can( 'edit_post', $post_id ) )
return wp_send_json_error( __( 'You are not allowed to edit this item.', 'post-views-counter' ) );
// break if views editing is restricted
if ( (bool) $pvc->options['display']['restrict_edit_views'] === true && ! current_user_can( apply_filters( 'pvc_restrict_edit_capability', 'manage_options' ) ) )
return wp_send_json_error( __( 'You are not allowed to edit this item.', 'post-views-counter' ) );
// update post views
pvc_update_post_views( $post_id, $post_views );
do_action( 'pvc_after_update_post_views_count', $post_id );
return $post_id;
}
/**
* Enqueue frontend and editor JavaScript and CSS.
*
* @global string $pagenow
* @global string $wp_version
*
* @return void
*/
public function block_editor_enqueue_scripts() {
global $pagenow, $wp_version;
// get main instance
$pvc = Post_Views_Counter();
// skip screens without a single post context: widgets, customizer and the site editor
// wp.editor.PluginPostStatusInfo renders in the site editor too, where get_the_ID() is unavailable
if ( $pagenow === 'widgets.php' || $pagenow === 'customize.php' || $pagenow === 'site-editor.php' )
return;
// enqueue the bundled block JS file
// wp-editor: PluginPostStatusInfo, wp-api-request: wp.apiRequest used on save
wp_enqueue_script( 'pvc-block-editor', POST_VIEWS_COUNTER_URL . '/js/block-editor.js', [ 'wp-element', 'wp-components', 'wp-editor', 'wp-data', 'wp-plugins', 'wp-api-request' ], $pvc->defaults['version'], false );
// restrict editing
$can_edit = false;
$restrict = (bool) $pvc->options['display']['restrict_edit_views'];
if ( $restrict === false || ( $restrict === true && current_user_can( apply_filters( 'pvc_restrict_edit_capability', 'manage_options' ) ) ) )
$can_edit = true;
// get total post views
$id = get_the_ID();
$count = pvc_get_post_views( $id );
// disable views display and editing?
if ( apply_filters( 'pvc_admin_display_views', true, $id ) === false ) {
$count = '—';
$can_edit = false;
}
// prepare script data
$script_data = [
'postID' => $id,
'postViews' => $count,
'canEdit' => $can_edit,
'nonce' => wp_create_nonce( 'wp_rest' ),
'wpGreater53' => version_compare( $wp_version, '5.3', '>=' ),
'textPostViews' => esc_html__( 'Post Views', 'post-views-counter' ),
'textHelp' => esc_html__( 'Adjust the views count for this post.', 'post-views-counter' ),
'textCancel' => esc_html__( 'Cancel', 'post-views-counter' )
];
wp_add_inline_script( 'pvc-block-editor', 'var pvcEditorArgs = ' . wp_json_encode( $script_data ) . ";\n", 'before' );
// enqueue frontend and editor block styles
wp_enqueue_style( 'pvc-block-editor', POST_VIEWS_COUNTER_URL . '/css/block-editor.css', '', $pvc->defaults['version'] );
}
}