353 lines
9.1 KiB
PHP
353 lines
9.1 KiB
PHP
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<?php
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/**
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* Move JQuery from head to body.
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*
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* @package Builder
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*/
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if ( ! defined( 'ABSPATH' ) ) {
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exit; // Exit if accessed directly.
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}
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/**
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* Class to move JQuery from head to body.
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*/
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class ET_Builder_JQuery_Body {
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/**
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* Cache.
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*
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* @var array.
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*/
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protected $_has_jquery_dep = [];
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/**
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* Should move jquery.
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*
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* @var bool|null.
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*/
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protected static $_should_move_jquery = null;
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/**
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* Instance of `ET_Builder_JQuery_Body`.
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*
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* @var ET_Builder_JQuery_Body
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*/
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private static $_instance;
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/**
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* ET_Builder_JQuery_Body constructor.
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*/
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public function __construct() {
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add_action( 'wp_print_scripts', [ $this, 'wp_print_scripts' ], 99 );
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add_action( 'wp_head', [ $this, 'add_jquery_sub' ], 1 );
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add_action( 'wp_enqueue_scripts', [ $this, 'remove_jquery_sub' ] );
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}
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/**
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* Get post content from Theme Builder templates.
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* Combine it with the post content from the current post and integration code.
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*
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* @return string
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* @since 4.10.0
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*/
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public function get_all_content() {
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static $all_content;
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// Cache the value.
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if ( ! empty( $all_content ) ) {
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return $all_content;
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}
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global $post, $shortname;
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$all_content = empty( $post ) ? '' : $post->post_content;
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$tb_layouts = et_theme_builder_get_template_layouts();
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// Add TB templates content.
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if ( ! empty( $tb_layouts ) ) {
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$post_types = [
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ET_THEME_BUILDER_HEADER_LAYOUT_POST_TYPE,
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ET_THEME_BUILDER_BODY_LAYOUT_POST_TYPE,
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ET_THEME_BUILDER_FOOTER_LAYOUT_POST_TYPE,
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];
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foreach ( $post_types as $post_type ) {
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$layout = $tb_layouts[ $post_type ];
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if ( $layout['override'] && ! empty( $layout['enabled'] ) ) {
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$template = get_post( intval( $layout['id'] ) );
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$all_content .= $template->post_content;
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}
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}
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}
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$integrations = [
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'head',
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'body',
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'single_top',
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'single_bottom',
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];
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// Add Integration code.
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foreach ( $integrations as $integration ) {
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$all_content .= et_get_option( $shortname . '_integration_' . $integration );
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}
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return $all_content;
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}
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/**
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* Recursively check if a script (or its deps) depends on JQuery.
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*
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* @since 4.10.0
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* @param string $script Script Handle.
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*
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* @return bool
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*/
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public function has_jquery_dep( $script ) {
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global $wp_scripts;
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$registered = $wp_scripts->registered;
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$handles = [ $script ];
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$stack = [];
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$result = false;
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while ( false === $result && $handles ) {
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foreach ( $handles as $handle ) {
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if ( ! empty( $this->_has_jquery_dep[ $handle ] ) ) {
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$result = true;
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break;
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}
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if ( isset( $registered[ $handle ] ) ) {
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$deps = $registered[ $handle ]->deps;
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if ( $deps ) {
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if ( in_array( 'jquery-core', $deps, true ) ) {
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$result = true;
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break;
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}
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array_push( $stack, $deps );
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}
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}
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}
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$handles = array_pop( $stack );
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}
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$this->_has_jquery_dep[ $script ] = $result;
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return $result;
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}
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/**
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* Get script deps.
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*
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* @since 4.10.0
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* @param string $script Script Handle.
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*
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* @return array
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*/
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public function get_deps( $script ) {
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global $wp_scripts;
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$registered = $wp_scripts->registered;
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$handles = is_array( $script ) ? $script : [ $script ];
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$all_deps = $handles;
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$stack = [];
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$done = [];
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while ( $handles ) {
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foreach ( $handles as $handle ) {
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if ( ! isset( $done[ $handle ] ) && isset( $registered[ $handle ] ) ) {
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$deps = $registered[ $handle ]->deps;
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if ( $deps ) {
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$all_deps = array_merge( $all_deps, $deps );
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array_push( $stack, $deps );
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}
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$done[ $handle ] = true;
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}
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}
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$handles = array_pop( $stack );
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}
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return array_unique( $all_deps );
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}
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/**
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* Check if a script is currently enqueued in HEAD.
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*
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* @since 4.10.0
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* @param string $handle Script Handle.
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*
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* @return bool
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*/
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public function in_head( $handle ) {
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global $wp_scripts;
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if ( empty( $wp_scripts->registered[ $handle ] ) ) {
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return false;
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}
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$script = $wp_scripts->registered[ $handle ];
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if ( isset( $script->args ) && 1 === $script->args ) {
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return false;
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}
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if ( isset( $script->extra['group'] ) && 1 === $script->extra['group'] ) {
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return false;
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}
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return true;
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}
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/**
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* Check whether some content includes jQuery or not.
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*
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* @since 4.10.0
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* @param string $content Content.
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*
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* @return bool
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*/
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public static function has_jquery_content( $content ) {
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$has_jquery_regex = '/\(jQuery|jQuery\.|jQuery\)/';
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return 1 === preg_match( $has_jquery_regex, $content );
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}
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/**
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* Move jQuery / migrate / 3P scripts in BODY.
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*
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* @since 4.10.0
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*
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* @return void
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*/
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public function wp_print_scripts() {
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global $shortname;
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if ( $this->should_move_jquery() ) {
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global $wp_scripts;
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$queue = $this->get_deps( $wp_scripts->queue );
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$head = in_array( 'jquery-migrate', $queue, true ) ? [ 'jquery-migrate' ] : [];
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$mode = 'on' === et_get_option( $shortname . '_enable_jquery_body_super' ) ? 'super' : 'safe';
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// Find all head scripts that depends on JQuery.
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foreach ( $queue as $handle ) {
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if ( $this->in_head( $handle ) && $this->has_jquery_dep( $handle ) ) {
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if ( 'safe' === $mode && 'jquery' !== $handle && 'jquery-migrate' !== $handle ) {
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// Bail out when a script requiring jQuery is found in head.
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return;
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}
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$head[] = $handle;
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}
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}
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$registered = $wp_scripts->registered;
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// Disable the feature when finding a script which does not depend on jQuery
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// but still uses it inside its inlined content (before/after).
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foreach ( $queue as $handle ) {
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if ( ! $this->has_jquery_dep( $handle ) ) {
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$script = $registered[ $handle ];
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$data = '';
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if ( isset( $script->extra['data'] ) ) {
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$data .= $script->extra['data'];
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}
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if ( isset( $script->extra['before'] ) ) {
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$data .= join( '', $script->extra['before'] );
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}
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if ( isset( $script->extra['after'] ) ) {
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$data .= join( '', $script->extra['after'] );
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}
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if ( ! empty( $data ) && self::has_jquery_content( $data ) ) {
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return;
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}
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}
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}
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// Disable the feature when jQuery is found in TB/Post Content.
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if ( self::has_jquery_content( $this->get_all_content() ) ) {
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return;
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}
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if ( ! empty( $head ) ) {
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foreach ( $this->get_deps( $head ) as $handle ) {
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$wp_scripts->add_data( $handle, 'group', 1 );
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}
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}
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}
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}
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/**
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* Get the class instance.
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*
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* @since 4.10.0
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*
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* @return ET_Builder_JQuery_Body
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*/
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public static function instance() {
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if ( ! self::$_instance ) {
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self::$_instance = new self();
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}
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return self::$_instance;
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}
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/**
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* Fake jQuery in head when jQuery body option is true.
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*/
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public function add_jquery_sub() {
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global $shortname;
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$jquery_compatibility_enabled = 'on' === et_get_option( $shortname . '_enable_jquery_compatibility', 'on' ) ? true : false;
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if ( $this->should_move_jquery() && $jquery_compatibility_enabled ) {
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echo '<script type="text/javascript">
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let jqueryParams=[],jQuery=function(r){return jqueryParams=[...jqueryParams,r],jQuery},$=function(r){return jqueryParams=[...jqueryParams,r],$};window.jQuery=jQuery,window.$=jQuery;let customHeadScripts=!1;jQuery.fn=jQuery.prototype={},$.fn=jQuery.prototype={},jQuery.noConflict=function(r){if(window.jQuery)return jQuery=window.jQuery,$=window.jQuery,customHeadScripts=!0,jQuery.noConflict},jQuery.ready=function(r){jqueryParams=[...jqueryParams,r]},$.ready=function(r){jqueryParams=[...jqueryParams,r]},jQuery.load=function(r){jqueryParams=[...jqueryParams,r]},$.load=function(r){jqueryParams=[...jqueryParams,r]},jQuery.fn.ready=function(r){jqueryParams=[...jqueryParams,r]},$.fn.ready=function(r){jqueryParams=[...jqueryParams,r]};</script>';
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}
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}
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/**
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* Disable the Fake jQuery in head when jQuery body option is true.
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*/
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public function remove_jquery_sub() {
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global $shortname;
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$jquery_compatibility_enabled = 'on' === et_get_option( $shortname . '_enable_jquery_compatibility', 'on' ) ? true : false;
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if ( $this->should_move_jquery() && $jquery_compatibility_enabled ) {
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$script = 'jqueryParams.length&&$.each(jqueryParams,function(e,r){if("function"==typeof r){var n=String(r);n.replace("$","jQuery");var a=new Function("return "+n)();$(document).ready(a)}});';
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wp_add_inline_script( 'jquery', $script, 'after' );
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}
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}
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/**
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* Check if jQuery should be moved to the body.
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*/
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public function should_move_jquery() {
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global $shortname;
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if ( null === self::$_should_move_jquery ) {
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/**
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* Filters whether JQuery Body feature is enabled or not.
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*
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* @since 4.10.5
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*
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* @param bool $enabled JQuery Body enabled value.
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* @param string $content TB/Post Content.
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*/
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if ( false === apply_filters( 'et_builder_enable_jquery_body', true, $this->get_all_content() ) ) {
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// Bail out if disabled by filter.
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self::$_should_move_jquery = false;
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return false;
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}
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self::$_should_move_jquery = ! ( is_admin() || wp_doing_ajax() || et_is_builder_plugin_active() || is_customize_preview() || is_et_pb_preview() || 'wp-login.php' === $GLOBALS['pagenow'] || et_fb_is_enabled() ) && 'on' === et_get_option( $shortname . '_enable_jquery_body', 'on' );
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}
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return self::$_should_move_jquery;
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}
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}
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ET_Builder_JQuery_Body::instance();
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