| Current File : /home/n742ef5/www/forum/wp-content/plugins/everest-forms/includes/class-evf-template-loader.php |
<?php
/**
* Template Loader
*
* @package EverestForms\Classes
* @version 1.3.1
*/
defined( 'ABSPATH' ) || exit;
/**
* Template loader class.
*/
class EVF_Template_Loader {
/**
* Store the form ID.
*
* @var integer
*/
private static $form_id = 0;
/**
* Store whether we're processing a form preview inside the_content filter.
*
* @var boolean
*/
private static $in_content_filter = false;
/**
* Hook in methods.
*/
public static function init() {
self::$form_id = isset( $_GET['form_id'] ) ? absint( $_GET['form_id'] ) : 0; // phpcs:ignore WordPress.Security.NonceVerification
if ( ! is_admin() && isset( $_GET['evf_preview'] ) ) { // phpcs:ignore WordPress.Security.NonceVerification
add_action( 'pre_get_posts', array( __CLASS__, 'pre_get_posts' ) );
add_filter( 'edit_post_link', array( __CLASS__, 'edit_form_link' ) );
add_filter( 'template_include', array( __CLASS__, 'template_include' ) );
add_action( 'template_redirect', array( __CLASS__, 'form_preview_init' ) );
} else {
add_filter( 'template_include', array( __CLASS__, 'template_loader' ) );
}
}
/**
* Hook into pre_get_posts to limit posts.
*
* @param WP_Query $q Query instance.
*/
public static function pre_get_posts( $q ) {
// Limit one post to query.
if ( $q->is_main_query() ) {
$q->set( 'posts_per_page', 1 );
}
}
/**
* Change edit link of preview page.
*
* @param string $link Edit post link.
*/
public static function edit_form_link( $link ) {
if ( 0 < self::$form_id ) {
return '<a href="' . esc_url( admin_url( 'admin.php?page=evf-builder&tab=fields&form_id=' . self::$form_id ) ) . '" class="post-edit-link">' . esc_html__( 'Edit Form', 'everest-forms' ) . '</a>';
}
return $link;
}
/**
* Limit page templates to singular pages only.
*
* @return string
*/
public static function template_include() {
return locate_template( array( 'page.php', 'single.php', 'index.php' ) );
}
/**
* Load a template.
*
* Handles template usage so that we can use our own templates instead of the themes.
*
* Templates are in the 'templates' folder. everest-forms looks for theme.
* overrides in /theme/everest-forms/ by default.
*
* For beginners, it also looks for a everest-forms.php template first. If the user adds.
* this to the theme (containing a everest-forms() inside) this will be used for all.
* everest-forms templates.
*
* @param string $template Template to load.
* @return string
*/
public static function template_loader( $template ) {
if ( is_embed() ) {
return $template;
}
$default_file = self::get_template_loader_default_file();
if ( $default_file ) {
/**
* Filter hook to choose which files to find before EverestForms does it's own logic.
*
* @since 1.0.0
* @var array
*/
$search_files = self::get_template_loader_files( $default_file );
$template = locate_template( $search_files );
if ( ! $template || EVF_TEMPLATE_DEBUG_MODE ) {
$template = evf()->plugin_path() . '/templates/' . $default_file;
}
}
return $template;
}
/**
* Get the default filename for a template.
*
* @since 1.0.0
* @return string
*/
private static function get_template_loader_default_file() {
return '';
}
/**
* Get an array of filenames to search for a given template.
*
* @since 1.0.0
* @param string $default_file The default file name.
* @return string[]
*/
private static function get_template_loader_files( $default_file ) {
$search_files = apply_filters( 'everest_forms_template_loader_files', array(), $default_file );
$search_files[] = 'everest-forms.php';
if ( is_page_template() ) {
$search_files[] = get_page_template_slug();
}
$search_files[] = $default_file;
$search_files[] = evf()->template_path() . $default_file;
return array_unique( $search_files );
}
/*
|--------------------------------------------------------------------------
| Form Preview Handling
|--------------------------------------------------------------------------
*/
/**
* Hook in methods to enhance the form preview.
*/
public static function form_preview_init() {
if ( ! is_user_logged_in() || is_admin() ) {
return;
}
if ( 0 < self::$form_id ) {
add_filter( 'the_title', array( __CLASS__, 'form_preview_title_filter' ) );
add_filter( 'the_content', array( __CLASS__, 'form_preview_content_filter' ) );
add_filter( 'get_the_excerpt', array( __CLASS__, 'form_preview_content_filter' ) );
add_filter( 'post_thumbnail_html', '__return_empty_string' );
}
}
/**
* Filter the title and insert form preview title.
*
* @param string $title Existing title.
* @return string
*/
public static function form_preview_title_filter( $title ) {
$form = evf()->form->get(
self::$form_id,
array(
'content_only' => true,
)
);
if ( ! empty( $form['settings']['form_title'] ) && in_the_loop() ) {
if ( is_customize_preview() ) {
return esc_html( sanitize_text_field( $form['settings']['form_title'] ) );
}
/* translators: %s - Form name. */
return sprintf( esc_html__( '%s – Preview', 'everest-forms' ), sanitize_text_field( $form['settings']['form_title'] ) );
}
return $title;
}
/**
* Filter the content and insert form preview content.
*
* @param string $content Existing post content.
* @return string
*/
public static function form_preview_content_filter( $content ) {
if ( ! is_user_logged_in() || ! is_main_query() || ! in_the_loop() ) {
return $content;
}
self::$in_content_filter = true;
// Remove the filter we're in to avoid nested calls.
remove_filter( 'the_content', array( __CLASS__, 'form_preview_content_filter' ) );
if ( current_user_can( 'manage_everest_forms' ) ) {
$content = do_shortcode( '[everest_form id="' . absint( self::$form_id ) . '"]' );
}
self::$in_content_filter = false;
return $content;
}
}
add_action( 'init', array( 'EVF_Template_Loader', 'init' ) );