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<?php
/**
* Template Loader
*
* @package Kkart\Classes
*/
defined( 'ABSPATH' ) || exit;
/**
* Template loader class.
*/
class KKART_Template_Loader {
/**
* Store the shop page ID.
*
* @var integer
*/
private static $shop_page_id = 0;
/**
* Store whether we're processing a product inside the_content filter.
*
* @var boolean
*/
private static $in_content_filter = false;
/**
* Is Kkart support defined?
*
* @var boolean
*/
private static $theme_support = false;
/**
* Hook in methods.
*/
public static function init() {
self::$theme_support = current_theme_supports( 'kkart' );
self::$shop_page_id = kkart_get_page_id( 'shop' );
// Supported themes.
if ( self::$theme_support ) {
add_filter( 'template_include', array( __CLASS__, 'template_loader' ) );
add_filter( 'template_include', array( __CLASS__, 'template_loader_final' ), 99999, 1 );
add_filter( 'comments_template', array( __CLASS__, 'comments_template_loader' ) );
} else {
// Unsupported themes.
add_action( 'template_redirect', array( __CLASS__, 'unsupported_theme_init' ) );
}
}
/**
* Load a template.
*
* Handles template usage so that we can use our own templates instead of the theme's.
*
* Templates are in the 'templates' folder. Kkart looks for theme
* overrides in /theme/kkart/ by default.
*
* For beginners, it also looks for a kkart.php template first. If the user adds
* this to the theme (containing a kkart() inside) this will be used for all
* Kkart 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 Kkart does it's own logic.
*
* @since 3.0.0
* @var array
*/
$search_files = self::get_template_loader_files( $default_file );
$template = locate_template( $search_files );
if ( ! $template || KKART_TEMPLATE_DEBUG_MODE ) {
if ( false !== strpos( $default_file, 'product_cat' ) || false !== strpos( $default_file, 'product_tag' ) ) {
$cs_template = str_replace( '_', '-', $default_file );
$template = KKART()->plugin_path() . '/templates/' . $cs_template;
} else {
$template = KKART()->plugin_path() . '/templates/' . $default_file;
}
}
}
return $template;
}
// Pagelayer template not found fix
public static function template_loader_final( $template ) {
if ( is_embed() ) {
return $template;
}
if(!empty($template) && !file_exists($template)){
if(is_user_logged_in()){
$msg = 'Template not found. Please <a href="'.esc_url(admin_url('admin.php?page=pagelayer_template_wizard')).'" target="_blank">create template</a> OR import template from <a href="'.esc_url(admin_url('admin.php?page=kkart-settings&tab=advanced§ion=import_template')).'" target="_blank">kkart settings</a>.';
}else{
$msg = 'Template not found. Please contact the store manager, they will help you.';
}
wp_die($msg);
}
return $template;
}
/**
* Get the default filename for a template.
*
* @since 3.0.0
* @return string
*/
private static function get_template_loader_default_file() {
if ( is_singular( 'product' ) ) {
$default_file = 'single-product.php';
} elseif ( is_product_taxonomy() ) {
$object = get_queried_object();
if ( is_tax( 'product_cat' ) || is_tax( 'product_tag' ) ) {
$default_file = 'taxonomy-' . $object->taxonomy . '.php';
} else {
$default_file = 'archive-product.php';
}
} elseif ( is_post_type_archive( 'product' ) || is_page( kkart_get_page_id( 'shop' ) ) ) {
$default_file = self::$theme_support ? 'archive-product.php' : '';
} else {
$default_file = '';
}
return $default_file;
}
/**
* Get an array of filenames to search for a given template.
*
* @since 3.0.0
* @param string $default_file The default file name.
* @return string[]
*/
private static function get_template_loader_files( $default_file ) {
$templates = apply_filters( 'kkart_template_loader_files', array(), $default_file );
$templates[] = 'kkart.php';
if ( is_page_template() ) {
$page_template = get_page_template_slug();
if ( $page_template ) {
$validated_file = validate_file( $page_template );
if ( 0 === $validated_file ) {
$templates[] = $page_template;
} else {
error_log( "Kkart: Unable to validate template path: \"$page_template\". Error Code: $validated_file." );
}
}
}
if ( is_singular( 'product' ) ) {
$object = get_queried_object();
$name_decoded = urldecode( $object->post_name );
if ( $name_decoded !== $object->post_name ) {
$templates[] = "single-product-{$name_decoded}.php";
}
$templates[] = "single-product-{$object->post_name}.php";
}
if ( is_product_taxonomy() ) {
$object = get_queried_object();
$templates[] = 'taxonomy-' . $object->taxonomy . '-' . $object->slug . '.php';
$templates[] = KKART()->template_path() . 'taxonomy-' . $object->taxonomy . '-' . $object->slug . '.php';
$templates[] = 'taxonomy-' . $object->taxonomy . '.php';
$templates[] = KKART()->template_path() . 'taxonomy-' . $object->taxonomy . '.php';
if ( is_tax( 'product_cat' ) || is_tax( 'product_tag' ) ) {
$cs_taxonomy = str_replace( '_', '-', $object->taxonomy );
$cs_default = str_replace( '_', '-', $default_file );
$templates[] = 'taxonomy-' . $object->taxonomy . '-' . $object->slug . '.php';
$templates[] = KKART()->template_path() . 'taxonomy-' . $cs_taxonomy . '-' . $object->slug . '.php';
$templates[] = 'taxonomy-' . $object->taxonomy . '.php';
$templates[] = KKART()->template_path() . 'taxonomy-' . $cs_taxonomy . '.php';
$templates[] = $cs_default;
}
}
$templates[] = $default_file;
if ( isset( $cs_default ) ) {
$templates[] = KKART()->template_path() . $cs_default;
}
$templates[] = KKART()->template_path() . $default_file;
return array_unique( $templates );
}
/**
* Load comments template.
*
* @param string $template template to load.
* @return string
*/
public static function comments_template_loader( $template ) {
if ( get_post_type() !== 'product' ) {
return $template;
}
$check_dirs = array(
trailingslashit( get_stylesheet_directory() ) . KKART()->template_path(),
trailingslashit( get_template_directory() ) . KKART()->template_path(),
trailingslashit( get_stylesheet_directory() ),
trailingslashit( get_template_directory() ),
trailingslashit( KKART()->plugin_path() ) . 'templates/',
);
if ( KKART_TEMPLATE_DEBUG_MODE ) {
$check_dirs = array( array_pop( $check_dirs ) );
}
foreach ( $check_dirs as $dir ) {
if ( file_exists( trailingslashit( $dir ) . 'single-product-reviews.php' ) ) {
return trailingslashit( $dir ) . 'single-product-reviews.php';
}
}
}
/**
* Unsupported theme compatibility methods.
*/
/**
* Hook in methods to enhance the unsupported theme experience on pages.
*
* @since 3.3.0
*/
public static function unsupported_theme_init() {
if ( 0 < self::$shop_page_id ) {
if ( is_product_taxonomy() ) {
self::unsupported_theme_tax_archive_init();
} elseif ( is_product() ) {
self::unsupported_theme_product_page_init();
} else {
self::unsupported_theme_shop_page_init();
}
}
}
/**
* Hook in methods to enhance the unsupported theme experience on the Shop page.
*
* @since 3.3.0
*/
private static function unsupported_theme_shop_page_init() {
add_filter( 'the_content', array( __CLASS__, 'unsupported_theme_shop_content_filter' ), 10 );
add_filter( 'the_title', array( __CLASS__, 'unsupported_theme_title_filter' ), 10, 2 );
add_filter( 'comments_number', array( __CLASS__, 'unsupported_theme_comments_number_filter' ) );
}
/**
* Hook in methods to enhance the unsupported theme experience on Product pages.
*
* @since 3.3.0
*/
private static function unsupported_theme_product_page_init() {
add_filter( 'the_content', array( __CLASS__, 'unsupported_theme_product_content_filter' ), 10 );
add_filter( 'post_thumbnail_html', array( __CLASS__, 'unsupported_theme_single_featured_image_filter' ) );
add_filter( 'kkart_product_tabs', array( __CLASS__, 'unsupported_theme_remove_review_tab' ) );
remove_action( 'kkart_before_main_content', 'kkart_output_content_wrapper', 10 );
remove_action( 'kkart_after_main_content', 'kkart_output_content_wrapper_end', 10 );
add_theme_support( 'kkart-product-gallery-zoom' );
add_theme_support( 'kkart-product-gallery-lightbox' );
add_theme_support( 'kkart-product-gallery-slider' );
}
/**
* Enhance the unsupported theme experience on Product Category and Attribute pages by rendering
* those pages using the single template and shortcode-based content. To do this we make a dummy
* post and set a shortcode as the post content. This approach is adapted from bbPress.
*
* @since 3.3.0
*/
private static function unsupported_theme_tax_archive_init() {
global $wp_query, $post;
$queried_object = get_queried_object();
$args = self::get_current_shop_view_args();
$shortcode_args = array(
'page' => $args->page,
'columns' => $args->columns,
'rows' => $args->rows,
'orderby' => '',
'order' => '',
'paginate' => true,
'cache' => false,
);
if ( is_product_category() ) {
$shortcode_args['category'] = sanitize_title( $queried_object->slug );
} elseif ( taxonomy_is_product_attribute( $queried_object->taxonomy ) ) {
$shortcode_args['attribute'] = sanitize_title( $queried_object->taxonomy );
$shortcode_args['terms'] = sanitize_title( $queried_object->slug );
} elseif ( is_product_tag() ) {
$shortcode_args['tag'] = sanitize_title( $queried_object->slug );
} else {
// Default theme archive for all other taxonomies.
return;
}
// Description handling.
if ( ! empty( $queried_object->description ) && ( empty( $_GET['product-page'] ) || 1 === absint( $_GET['product-page'] ) ) ) { // WPCS: input var ok, CSRF ok.
$prefix = '<div class="term-description">' . kkart_format_content( $queried_object->description ) . '</div>'; // WPCS: XSS ok.
} else {
$prefix = '';
}
add_filter( 'kkart_shortcode_products_query', array( __CLASS__, 'unsupported_archive_layered_nav_compatibility' ) );
$shortcode = new KKART_Shortcode_Products( $shortcode_args );
remove_filter( 'kkart_shortcode_products_query', array( __CLASS__, 'unsupported_archive_layered_nav_compatibility' ) );
$shop_page = get_post( self::$shop_page_id );
$dummy_post_properties = array(
'ID' => 0,
'post_status' => 'publish',
'post_author' => $shop_page->post_author,
'post_parent' => 0,
'post_type' => 'page',
'post_date' => $shop_page->post_date,
'post_date_gmt' => $shop_page->post_date_gmt,
'post_modified' => $shop_page->post_modified,
'post_modified_gmt' => $shop_page->post_modified_gmt,
'post_content' => $prefix . $shortcode->get_content(),
'post_title' => kkart_clean( $queried_object->name ),
'post_excerpt' => '',
'post_content_filtered' => '',
'post_mime_type' => '',
'post_password' => '',
'post_name' => $queried_object->slug,
'guid' => '',
'menu_order' => 0,
'pinged' => '',
'to_ping' => '',
'ping_status' => '',
'comment_status' => 'closed',
'comment_count' => 0,
'filter' => 'raw',
);
// Set the $post global.
$post = new WP_Post( (object) $dummy_post_properties ); // @codingStandardsIgnoreLine.
// Copy the new post global into the main $wp_query.
$wp_query->post = $post;
$wp_query->posts = array( $post );
// Prevent comments form from appearing.
$wp_query->post_count = 1;
$wp_query->is_404 = false;
$wp_query->is_page = true;
$wp_query->is_single = true;
$wp_query->is_archive = false;
$wp_query->is_tax = true;
$wp_query->max_num_pages = 0;
// Prepare everything for rendering.
setup_postdata( $post );
remove_all_filters( 'the_content' );
remove_all_filters( 'the_excerpt' );
add_filter( 'template_include', array( __CLASS__, 'force_single_template_filter' ) );
}
/**
* Add layered nav args to WP_Query args generated by the 'products' shortcode.
*
* @since 3.3.4
* @param array $query WP_Query args.
* @return array
*/
public static function unsupported_archive_layered_nav_compatibility( $query ) {
foreach ( KKART()->query->get_layered_nav_chosen_attributes() as $taxonomy => $data ) {
$query['tax_query'][] = array(
'taxonomy' => $taxonomy,
'field' => 'slug',
'terms' => $data['terms'],
'operator' => 'and' === $data['query_type'] ? 'AND' : 'IN',
'include_children' => false,
);
}
return $query;
}
/**
* Force the loading of one of the single templates instead of whatever template was about to be loaded.
*
* @since 3.3.0
* @param string $template Path to template.
* @return string
*/
public static function force_single_template_filter( $template ) {
$possible_templates = array(
'page',
'single',
'singular',
'index',
);
foreach ( $possible_templates as $possible_template ) {
$path = get_query_template( $possible_template );
if ( $path ) {
return $path;
}
}
return $template;
}
/**
* Get information about the current shop page view.
*
* @since 3.3.0
* @return array
*/
private static function get_current_shop_view_args() {
return (object) array(
'page' => absint( max( 1, absint( get_query_var( 'paged' ) ) ) ),
'columns' => kkart_get_default_products_per_row(),
'rows' => kkart_get_default_product_rows_per_page(),
);
}
/**
* Filter the title and insert Kkart content on the shop page.
*
* For non-KKART themes, this will setup the main shop page to be shortcode based to improve default appearance.
*
* @since 3.3.0
* @param string $title Existing title.
* @param int $id ID of the post being filtered.
* @return string
*/
public static function unsupported_theme_title_filter( $title, $id ) {
if ( self::$theme_support || ! $id !== self::$shop_page_id ) {
return $title;
}
if ( is_page( self::$shop_page_id ) || ( is_home() && 'page' === get_option( 'show_on_front' ) && absint( get_option( 'page_on_front' ) ) === self::$shop_page_id ) ) {
$args = self::get_current_shop_view_args();
$title_suffix = array();
if ( $args->page > 1 ) {
/* translators: %d: Page number. */
$title_suffix[] = sprintf( esc_html__( 'Page %d', 'kkart' ), $args->page );
}
if ( $title_suffix ) {
$title = $title . ' – ' . implode( ', ', $title_suffix );
}
}
return $title;
}
/**
* Filter the content and insert Kkart content on the shop page.
*
* For non-KKART themes, this will setup the main shop page to be shortcode based to improve default appearance.
*
* @since 3.3.0
* @param string $content Existing post content.
* @return string
*/
public static function unsupported_theme_shop_content_filter( $content ) {
global $wp_query;
if ( self::$theme_support || ! 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__, 'unsupported_theme_shop_content_filter' ) );
// Unsupported theme shop page.
if ( is_page( self::$shop_page_id ) ) {
$args = self::get_current_shop_view_args();
$shortcode = new KKART_Shortcode_Products(
array_merge(
KKART()->query->get_catalog_ordering_args(),
array(
'page' => $args->page,
'columns' => $args->columns,
'rows' => $args->rows,
'orderby' => '',
'order' => '',
'paginate' => true,
'cache' => false,
)
),
'products'
);
// Allow queries to run e.g. layered nav.
add_action( 'pre_get_posts', array( KKART()->query, 'product_query' ) );
$content = $content . $shortcode->get_content();
// Remove actions and self to avoid nested calls.
remove_action( 'pre_get_posts', array( KKART()->query, 'product_query' ) );
KKART()->query->remove_ordering_args();
}
self::$in_content_filter = false;
return $content;
}
/**
* Filter the content and insert Kkart content on the shop page.
*
* For non-KKART themes, this will setup the main shop page to be shortcode based to improve default appearance.
*
* @since 3.3.0
* @param string $content Existing post content.
* @return string
*/
public static function unsupported_theme_product_content_filter( $content ) {
global $wp_query;
if ( self::$theme_support || ! 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__, 'unsupported_theme_product_content_filter' ) );
if ( is_product() ) {
$content = do_shortcode( '[product_page id="' . get_the_ID() . '" show_title=0 status="any"]' );
}
self::$in_content_filter = false;
return $content;
}
/**
* Suppress the comments number on the Shop page for unsupported themes since there is no commenting on the Shop page.
*
* @since 3.4.5
* @param string $comments_number The comments number text.
* @return string
*/
public static function unsupported_theme_comments_number_filter( $comments_number ) {
if ( is_page( self::$shop_page_id ) ) {
return '';
}
return $comments_number;
}
/**
* Are we filtering content for unsupported themes?
*
* @since 3.3.2
* @return bool
*/
public static function in_content_filter() {
return (bool) self::$in_content_filter;
}
/**
* Prevent the main featured image on product pages because there will be another featured image
* in the gallery.
*
* @since 3.3.0
* @param string $html Img element HTML.
* @return string
*/
public static function unsupported_theme_single_featured_image_filter( $html ) {
if ( self::in_content_filter() || ! is_product() || ! is_main_query() ) {
return $html;
}
return '';
}
/**
* Remove the Review tab and just use the regular comment form.
*
* @param array $tabs Tab info.
* @return array
*/
public static function unsupported_theme_remove_review_tab( $tabs ) {
unset( $tabs['reviews'] );
return $tabs;
}
}
add_action( 'init', array( 'KKART_Template_Loader', 'init' ) );