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class.llms.frontend.assets.php
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class.llms.frontend.assets.php
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<?php
/**
* Frontend scripts class
*
* @package LifterLMS/Classes
*
* @since 1.0.0
* @version 7.5.0
*/
defined( 'ABSPATH' ) || exit;
/**
* LLMS_Frontend_Assets
*
* @since 1.0.0
* @since 3.35.0 Explicitly define asset versions.
* @since 3.36.0 Localize tracking with client-side settings.
* @since 4.0.0 Remove JS dependencies "collapse" and "transition".
* @since 4.4.0 Method `enqueue_inline_script()` is deprecated in favor of `LLMS_Assets::enqueue_inline()`.
* Method `is_inline_script_enqueued()` is deprecated in favor of `LLMS_Frontend_Assets::is_inline_enqueued()`.
* Private properties `$enqueued_inline_scripts` and `$inline_scripts` have been removed.
* Removed private methods `get_inline_scripts()` and `output_inline_scripts()`.
* @since 6.0.0 Removed deprecated items.
* - `LLMS_Frontend_Assets::enqueue_inline_pw_script()` method
* - `LLMS_Frontend_Assets::enqueue_inline_script()` method
* - `LLMS_Frontend_Assets::is_inline_script_enqueued()` method
*/
class LLMS_Frontend_Assets {
/**
* Inline script ids that have been enqueued.
*
* @var array
*/
private static $enqueued_inline_scripts = array();
/**
* Array of inline scripts to be output in the header / footer respectively.
*
* @var array
*/
private static $inline_scripts = array(
'header' => array(),
'footer' => array(),
);
/**
* Initializer
*
* Replaces non-static __construct() from 3.4.0 & lower.
*
* @since 3.4.1
* @since 3.17.5 Unknown.
* @since 5.6.0 Add content protection inline script enqueue.
*
* @return void
*/
public static function init() {
add_action( 'wp_enqueue_scripts', array( __CLASS__, 'enqueue_styles' ) );
add_action( 'wp_enqueue_scripts', array( __CLASS__, 'enqueue_scripts' ) );
add_action( 'wp_head', array( __CLASS__, 'output_header_scripts' ) );
add_action( 'wp_print_footer_scripts', array( __CLASS__, 'output_footer_scripts' ), 1 );
add_action( 'wp', array( __CLASS__, 'enqueue_content_protection' ) );
}
/**
* Enqueue inline copy prevention scripts.
*
* @since 5.6.0
*
* @return void
*/
public static function enqueue_content_protection() {
$allow_copying = ! llms_parse_bool( get_option( 'lifterlms_content_protection', 'no' ) ) || llms_can_user_bypass_restrictions( get_current_user_id() );
/**
* Filters whether or not content prevention is enabled.
*
* This hook runs on the `wp` action, at this point the current user is available and
* the global `$post` has already been set up.
*
* @since 5.6.0
*
* @param boolean $allow_copying Whether or not copying is allowed. If `true`, copying
* is allowed, otherwise copy prevention scripts are
* loaded.
*/
$allow_copying = apply_filters( 'llms_skip_content_prevention', $allow_copying );
if ( $allow_copying ) {
return;
}
ob_start();
?>
( function(){
function dispatchEvent( type ) {
document.dispatchEvent( new Event( type ) );
}
document.addEventListener( 'copy', function( event ) {
event.preventDefault();
event.clipboardData.setData( 'text/plain', '<?php echo __( 'Copying is not allowed.', 'lifterlms' ); ?>' );
dispatchEvent( 'llms-copy-prevented' );
}, false );
document.addEventListener( 'contextmenu', function( event ) {
if ( event.target && 'IMG' === event.target.nodeName ) {
event.preventDefault();
dispatchEvent( 'llms-context-prevented' );
}
}, false );
} )();
<?php
$script = ob_get_clean();
llms()->assets->enqueue_inline( 'llms-integrity', $script, 'header' );
}
/**
* Enqueue Styles
*
* @since 1.0.0
* @since 3.18.0 Unknown.
* @since 3.35.0 Explicitly define asset versions.
* @since 4.4.0 Enqueue & register scripts using `LLMS_Assets` methods.
* @since 5.0.0 Enqueue select2 on account and checkout pages for searchable dropdowns for country & state.
*
* @return void
*/
public static function enqueue_styles() {
global $post_type;
llms()->assets->register_style( 'llms-iziModal' );
llms()->assets->enqueue_style( 'webui-popover' );
llms()->assets->enqueue_style( 'lifterlms-styles' );
if ( in_array( $post_type, array( 'llms_my_certificate', 'llms_certificate' ), true ) ) {
llms()->assets->enqueue_style( 'certificates' );
} elseif ( is_llms_account_page() ) {
llms()->assets->enqueue_style( 'llms-iziModal' );
} elseif ( is_singular( 'llms_quiz' ) ) {
wp_enqueue_style( 'wp-mediaelement' );
}
if ( is_llms_account_page() || is_llms_checkout() ) {
llms()->assets->enqueue_style( 'llms-select2-styles' );
}
}
/**
* Enqueue Scripts
*
* @since 1.0.0
* @since 3.22.0 Unknown.
* @since 3.35.0 Explicitly define asset versions.
* @since 3.36.0 Localize tracking with client-side settings.
* @since 4.0.0 Remove dependencies "collapse" and "transition".
* @since 4.4.0 Enqueue & register scripts using `LLMS_Assets` methods.
* Add Add `window.llms.ajax_nonce` data to replace `wp_ajax_data.nonce`.
* Moved inline scripts to `enqueue_inline_scripts()`.
* @since 5.0.0 Enqueue locale data and dependencies on account and checkout pages for searchable dropdowns for country & state.
* Remove password strength inline enqueue.
* @since 7.5.0 Enqueue `llms-favorites` script on lesson and course page.
*
* @return void
*/
public static function enqueue_scripts() {
// I don't think we need these next 3 scripts.
wp_enqueue_script( 'jquery-ui-tooltip' );
wp_enqueue_script( 'jquery-ui-datepicker' );
wp_enqueue_script( 'jquery-ui-slider' );
llms()->assets->enqueue_script( 'webui-popover' );
llms()->assets->register_script( 'llms-jquery-matchheight' );
if ( is_llms_account_page() || is_course() || is_membership() || is_lesson() || is_memberships() || is_courses() || is_tax( array( 'course_cat', 'course_tag', 'course_difficulty', 'course_track', 'membership_tag', 'membership_cat' ) ) ) {
llms()->assets->enqueue_script( 'llms-jquery-matchheight' );
}
llms()->assets->enqueue_script( 'llms' );
llms()->assets->register_script( 'llms-notifications' );
if ( get_current_user_id() ) {
llms()->assets->enqueue_script( 'llms-notifications' );
}
// Doesn't seem like there's any reason to enqueue this script on the frontend.
wp_enqueue_script( 'llms-ajax', LLMS_PLUGIN_URL . 'assets/js/llms-ajax' . LLMS_ASSETS_SUFFIX . '.js', array( 'jquery' ), llms()->version, true );
// I think we only need this on account and checkout pages.
llms()->assets->enqueue_script( 'llms-form-checkout' );
if ( is_singular( 'llms_quiz' ) ) {
llms()->assets->enqueue_script( 'llms-quiz' );
}
llms()->assets->register_script( 'llms-favorites' );
if ( ( is_lesson() || is_course() ) && true === llms_is_favorites_enabled() ) {
llms()->assets->enqueue_script( 'llms-favorites' );
}
llms()->assets->register_script( 'llms-iziModal' );
if ( is_llms_account_page() ) {
llms()->assets->enqueue_script( 'llms-iziModal' );
}
self::enqueue_inline_scripts();
self::enqueue_locale_scripts();
}
/**
* Enqueue inline scripts.
*
* @since 4.4.0
* @since 7.0.0 Include checkout page script data for AJAX-powered gateways.
*
* @return void
*/
protected static function enqueue_inline_scripts() {
// Ensure the main llms object exists.
llms()->assets->enqueue_inline( 'llms-obj', 'window.llms = window.llms || {};', 'footer', 5 );
// Define inline scripts.
$scripts = array(
'llms-ajaxurl' => 'window.llms.ajaxurl = "' . admin_url( 'admin-ajax.php', is_ssl() ? 'https' : 'http' ) . '";',
'llms-ajax-nonce' => 'window.llms.ajax_nonce = "' . wp_create_nonce( LLMS_AJAX::NONCE ) . '";',
'llms-tracking-settings' => "window.llms.tracking = '" . wp_json_encode( llms()->events()->get_client_settings() ) . "';",
'llms-LLMS-obj' => 'window.LLMS = window.LLMS || {};',
'llms-l10n' => 'window.LLMS.l10n = window.LLMS.l10n || {}; window.LLMS.l10n.strings = ' . LLMS_L10n::get_js_strings( true ) . ';',
);
$checkout_urls = self::get_checkout_urls();
if ( ! empty( $checkout_urls ) ) {
$scripts['llms-checkout-urls'] = "window.llms.checkoutUrls = JSON.parse( '" . wp_json_encode( $checkout_urls ) . "' );";
}
// Enqueue them.
foreach ( $scripts as $handle => $script ) {
llms()->assets->enqueue_inline( $handle, $script, 'footer' );
}
}
/**
* Enqueue dependencies and inline script data for form localization
*
* @since 5.0.0
*
* @return void
*/
protected static function enqueue_locale_scripts() {
if ( is_llms_account_page() || is_llms_checkout() ) {
llms()->assets->enqueue_script( 'llms-select2' );
llms()->assets->enqueue_inline(
'llms-countries-locale',
"window.llms.address_info = '" . wp_json_encode( llms_get_countries_address_info() ) . "';",
'footer',
20
);
}
}
/**
* Retrieves AJAX checkout URLs used for checkout and switching payment source on the student dashboard.
*
* @since 7.0.0
*
* @return array
*/
private static function get_checkout_urls() {
$urls = array();
$controller = LLMS_Controller_Checkout::instance();
if ( is_llms_checkout() ) {
$urls = array(
'createPendingOrder' => $controller->get_url( $controller::ACTION_CREATE_PENDING_ORDER ),
'confirmPendingOrder' => $controller->get_url( $controller::ACTION_CONFIRM_PENDING_ORDER ),
);
} elseif ( is_llms_account_page() && 'orders' === LLMS_Student_Dashboard::get_current_tab( 'slug' ) && is_numeric( get_query_var( 'orders', false ) ) ) {
$urls = array(
'switchPaymentSource' => $controller->get_url( $controller::ACTION_SWITCH_PAYMENT_SOURCE ),
);
}
return $urls;
}
/**
* Output inline scripts in the footer
*
* @since 3.4.1
* @since 4.4.0 Use `LLMS_Assets::output_inline()` to output scripts.
*
* @return void
*/
public static function output_footer_scripts() {
llms()->assets->output_inline( 'footer' );
}
/**
* Output inline scripts in the header
*
* @since 3.4.1
* @since 4.4.0 Use `LLMS_Assets::output_inline()` to output scripts.
*
* @return void
*/
public static function output_header_scripts() {
llms()->assets->output_inline( 'header' );
}
}
return LLMS_Frontend_Assets::init();