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<?php

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if ( ! defined( 'ABSPATH' ) ) {

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// Exit if accessed directly.

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exit;

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}

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/**

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* Compatibility for The Events Calendar plugin.

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* @since 3.10

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* @link https://wordpress.org/plugins/the-events-calendar/

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class ET_Builder_Plugin_Compat_The_Events_Calendar extends ET_Builder_Plugin_Compat_Base {

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public $actual_post_query;

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public $spoofed_post_query;

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/**

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* Constructor.

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* @since 3.10

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public function __construct() {

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$this->plugin_id = 'the-events-calendar/the-events-calendar.php';

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$this->init_hooks();

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}

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/**

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* Hook methods to WordPress.

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* Latest plugin version: 4.6.19

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* @todo once this issue is fixed in future version, run version_compare() to limit the scope of the hooked fix

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* @since 3.10

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* @since 4.4.6 Bump loop_start hook priority to cover post hijacking issue.

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* @return void

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public function init_hooks() {

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// Bail if there's no version found.

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if ( ! $this->get_plugin_version() ) {

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return;

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}

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add_action( 'wp', array( $this, 'register_spoofed_post_fix' ) );

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add_action( 'loop_start', array( $this, 'maybe_disable_post_spoofing' ), 1001 );

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add_filter( 'wp_insert_post_empty_content', array( $this, 'maybe_allow_save_empty_content' ), 10, 2 );

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}

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/**

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* The Events Calendar register Tribe__Events__Templates::maybeSpoofQuery() on wp_head (100) hook

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* which modifies global $posts. This modified post object breaks anything that came after wp_head

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* until the spoofed post is fixed. Anything that relies on $post global value on body_class is affected

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* (ie Divi's hide nav until scroll because it adds classname to <body> to work)

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* @since 3.10

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* @return void

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function register_spoofed_post_fix() {

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// Bail if global $post doesn't exist for some reason. Just to be safe.

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if ( ! isset( $GLOBALS['post'] ) ) {

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return;

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}

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// Only apply spoofed post fix if builder is used in custom post type page

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if ( ! et_builder_post_is_of_custom_post_type( get_the_ID() ) || ! et_pb_is_pagebuilder_used( get_the_ID() ) ) {

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return;

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}

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// Get actual $post query before Tribe__Events__Templates::maybeSpoofQuery() modifies it

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$this->actual_post_query = $GLOBALS['post'];

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// Return spoofed $post into its actual post then re-return it into spoofed post object

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add_action( 'et_layout_body_class_before', array( $this, 'fix_post_query' ) );

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add_action( 'et_layout_body_class_after', array( $this, 'respoofed_post_query' ) );

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}

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/**

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* Return spoofed $post into its actual post so anything that relies to $post object works as expected

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* @since 3.10

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* @return void

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function fix_post_query() {

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// Bail if global $post doesn't exist for some reason. Just to be safe.

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if ( ! isset( $GLOBALS['post'] ) ) {

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return;

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}

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$this->spoofed_post_query = $GLOBALS['post'];

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$GLOBALS['post'] = $this->actual_post_query; // phpcs:ignore WordPress.Variables.GlobalVariables.OverrideProhibited

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}

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/**

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* Re-return actual $post object into spoofed post so The Event Calendar works as expected

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* @since 3.10

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* @return void

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function respoofed_post_query() {

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$GLOBALS['post'] = $this->spoofed_post_query; // phpcs:ignore WordPress.Variables.GlobalVariables.OverrideProhibited

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}

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/**

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* Maybe disable post spoofing when a TB body layout is used.

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* @since 4.2.2

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* @since 4.4.6 Maybe disable post hijacking on Page Template v2.

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function maybe_disable_post_spoofing() {

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if ( et_theme_builder_overrides_layout( ET_THEME_BUILDER_BODY_LAYOUT_POST_TYPE ) ) {

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remove_action( 'the_post', array( 'Tribe__Events__Templates', 'spoof_the_post' ) );

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// Ensure to check the class and tribe() method exists. Method tribe() is used

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// to return an instance of the class and resolve the object.

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if ( class_exists( '\Tribe\Events\Views\V2\Template\Page' ) && function_exists( 'tribe' ) ) {

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$page = tribe( \Tribe\Events\Views\V2\Template\Page::class );

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remove_action( 'the_post', array( $page, 'hijack_the_post' ), 25 );

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}

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}

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}

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/**

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* Allow event with empty title to update post and trigger save_post action when

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* activating BFB for the first time. So, event post meta can be saved as well.

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* @since 4.4.4

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* @param bool $maybe_empty Original status.

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* @param array $postarr Array of post data.

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public function maybe_allow_save_empty_content( $maybe_empty, $postarr ) {

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$post_action = et_()->array_get( $postarr, 'action' );

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$post_id = et_()->array_get( $postarr, 'post_ID', 0 );

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$post_status = et_()->array_get( $postarr, 'post_status' );

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$post_origin_status = et_()->array_get( $postarr, 'original_post_status' );

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$post_type = et_()->array_get( $postarr, 'post_type' );

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// Ensure to override the status only on very first BFB activation and

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// limited for tribe_events post type only.

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$is_edit_action = 'editpost' === $post_action;

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$is_builder_used = et_pb_is_pagebuilder_used( $post_id );

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$is_post_draft = 'draft' === $post_status && 'auto-draft' === $post_origin_status;

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$is_post_event = 'tribe_events' === $post_type;

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if ( $is_edit_action && $is_builder_used && $is_post_draft && $is_post_event ) {

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return false;

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}

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return $maybe_empty;

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}

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}

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new ET_Builder_Plugin_Compat_The_Events_Calendar;

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