<?php
namespace Elementor\Core\Editor;

use Elementor\Core\Breakpoints\Manager as Breakpoints_Manager;
use Elementor\Core\Common\Modules\Ajax\Module;
use Elementor\Core\Debug\Loading_Inspection_Manager;
use Elementor\Core\Editor\Loader\Editor_Loader_Factory;
use Elementor\Core\Editor\Loader\Editor_Loader_Interface;
use Elementor\Core\Experiments\Manager as Experiments_Manager;
use Elementor\Core\Settings\Manager as SettingsManager;
use Elementor\Plugin;
use Elementor\TemplateLibrary\Source_Local;
use Elementor\Utils;
use Elementor\Core\Editor\Data;

if ( ! defined( 'ABSPATH' ) ) {
	exit; // Exit if accessed directly.
}

/**
 * Elementor editor.
 *
 * Elementor editor handler class is responsible for initializing Elementor
 * editor and register all the actions needed to display the editor.
 *
 * @since 1.0.0
 */
class Editor {

	/**
	 * User capability required to access Elementor editor.
	 */
	const EDITING_CAPABILITY = 'edit_posts';

	const EDITOR_V2_EXPERIMENT_NAME = 'editor_v2';

	/**
	 * Post ID.
	 *
	 * Holds the ID of the current post being edited.
	 *
	 * @since 1.0.0
	 * @access private
	 *
	 * @var int Post ID.
	 */
	private $post_id;

	/**
	 * Whether the edit mode is active.
	 *
	 * Used to determine whether we are in edit mode.
	 *
	 * @since 1.0.0
	 * @access private
	 *
	 * @var bool Whether the edit mode is active.
	 */
	private $is_edit_mode;

	/**
	 * @var Notice_Bar
	 */
	public $notice_bar;

	/**
	 * @var Promotion
	 */
	public $promotion;

	/**
	 * @var Editor_Loader_Interface
	 */
	private $loader;

	/**
	 * Init.
	 *
	 * Initialize Elementor editor. Registers all needed actions to run Elementor,
	 * removes conflicting actions etc.
	 *
	 * Fired by `admin_action_elementor` action.
	 *
	 * @since 1.0.0
	 * @access public
	 *
	 * @param bool $die Optional. Whether to die at the end. Default is `true`.
	 */
	public function init( $die = true ) {
		if ( empty( $_REQUEST['post'] ) ) {
			return;
		}

		$this->set_post_id( absint( $_REQUEST['post'] ) );

		if ( ! $this->is_edit_mode( $this->post_id ) ) {
			return;
		}

		// BC: From 2.9.0, the editor shouldn't handle the global post / current document.
		// Use requested id and not the global in order to avoid conflicts with plugins that changes the global post.
		query_posts( [
			'p' => $this->post_id,
			'post_type' => get_post_type( $this->post_id ),
		] );

		Plugin::$instance->db->switch_to_post( $this->post_id );

		$document = Plugin::$instance->documents->get( $this->post_id );

		Plugin::$instance->documents->switch_to_document( $document );

		// Change mode to Builder
		$document->set_is_built_with_elementor( true );

		// End BC.

		Loading_Inspection_Manager::instance()->register_inspections();

		// Send MIME Type header like WP admin-header.
		@header( 'Content-Type: ' . get_option( 'html_type' ) . '; charset=' . get_option( 'blog_charset' ) );

		add_filter( 'show_admin_bar', '__return_false' );

		// Remove all WordPress actions
		remove_all_actions( 'wp_head' );
		remove_all_actions( 'wp_print_styles' );
		remove_all_actions( 'wp_print_head_scripts' );
		remove_all_actions( 'wp_footer' );

		// Handle `wp_head`
		add_action( 'wp_head', 'wp_enqueue_scripts', 1 );
		add_action( 'wp_head', 'wp_print_styles', 8 );
		add_action( 'wp_head', 'wp_print_head_scripts', 9 );
		add_action( 'wp_head', 'wp_site_icon' );
		add_action( 'wp_head', [ $this, 'editor_head_trigger' ], 30 );

		// Handle `wp_footer`
		add_action( 'wp_footer', 'wp_print_footer_scripts', 20 );
		add_action( 'wp_footer', 'wp_auth_check_html', 30 );
		add_action( 'wp_footer', [ $this, 'wp_footer' ] );

		// Handle `wp_enqueue_scripts`
		remove_all_actions( 'wp_enqueue_scripts' );

		// Also remove all scripts hooked into after_wp_tiny_mce.
		remove_all_actions( 'after_wp_tiny_mce' );

		add_action( 'wp_enqueue_scripts', [ $this, 'enqueue_scripts' ], 999999 );
		add_action( 'wp_enqueue_scripts', [ $this, 'enqueue_styles' ], 999999 );

		// Setup default heartbeat options
		add_filter( 'heartbeat_settings', function( $settings ) {
			$settings['interval'] = 15;
			return $settings;
		} );

		// Tell to WP Cache plugins do not cache this request.
		Utils::do_not_cache();

		do_action( 'elementor/editor/init' );

		$this->get_loader()->print_root_template();

		// From the action it's an empty string, from tests its `false`
		if ( false !== $die ) {
			die;
		}
	}

	/**
	 * Retrieve post ID.
	 *
	 * Get the ID of the current post.
	 *
	 * @since 1.8.0
	 * @access public
	 *
	 * @return int Post ID.
	 */
	public function get_post_id() {
		return $this->post_id;
	}

	/**
	 * Redirect to new URL.
	 *
	 * Used as a fallback function for the old URL structure of Elementor page
	 * edit URL.
	 *
	 * Fired by `template_redirect` action.
	 *
	 * @since 1.6.0
	 * @access public
	 */
	public function redirect_to_new_url() {
		if ( ! isset( $_GET['elementor'] ) ) {
			return;
		}

		$document = Plugin::$instance->documents->get( get_the_ID() );

		if ( ! $document ) {
			wp_die( esc_html__( 'Document not found.', 'elementor' ) );
		}

		if ( ! $document->is_editable_by_current_user() || ! $document->is_built_with_elementor() ) {
			return;
		}

		wp_safe_redirect( $document->get_edit_url() );
		die;
	}

	/**
	 * Whether the edit mode is active.
	 *
	 * Used to determine whether we are in the edit mode.
	 *
	 * @since 1.0.0
	 * @access public
	 *
	 * @param int $post_id Optional. Post ID. Default is `null`, the current
	 *                     post ID.
	 *
	 * @return bool Whether the edit mode is active.
	 */
	public function is_edit_mode( $post_id = null ) {
		if ( null !== $this->is_edit_mode ) {
			return $this->is_edit_mode;
		}

		if ( empty( $post_id ) ) {
			$post_id = $this->post_id;
		}

		$document = Plugin::$instance->documents->get( $post_id );

		if ( ! $document || ! $document->is_editable_by_current_user() ) {
			return false;
		}

		/** @var Module ajax */
		$ajax_data = Plugin::$instance->common->get_component( 'ajax' )->get_current_action_data();

		if ( ! empty( $ajax_data ) && 'get_document_config' === $ajax_data['action'] ) {
			return true;
		}

		// Ajax request as Editor mode
		$actions = [
			'elementor',

			// Templates
			'elementor_get_templates',
			'elementor_save_template',
			'elementor_get_template',
			'elementor_delete_template',
			'elementor_import_template',
			'elementor_library_direct_actions',
		];

		if ( isset( $_REQUEST['action'] ) && in_array( $_REQUEST['action'], $actions ) ) {
			return true;
		}

		return false;
	}

	/**
	 * Lock post.
	 *
	 * Mark the post as currently being edited by the current user.
	 *
	 * @since 1.0.0
	 * @access public
	 *
	 * @param int $post_id The ID of the post being edited.
	 */
	public function lock_post( $post_id ) {
		if ( ! function_exists( 'wp_set_post_lock' ) ) {
			require_once ABSPATH . 'wp-admin/includes/post.php';
		}

		wp_set_post_lock( $post_id );
	}

	/**
	 * Get locked user.
	 *
	 * Check what user is currently editing the post.
	 *
	 * @since 1.0.0
	 * @access public
	 *
	 * @param int $post_id The ID of the post being edited.
	 *
	 * @return \WP_User|false User information or false if the post is not locked.
	 */
	public function get_locked_user( $post_id ) {
		if ( ! function_exists( 'wp_check_post_lock' ) ) {
			require_once ABSPATH . 'wp-admin/includes/post.php';
		}

		$locked_user = wp_check_post_lock( $post_id );
		if ( ! $locked_user ) {
			return false;
		}

		return get_user_by( 'id', $locked_user );
	}

	/**
	 * NOTICE: This method not in use, it's here for backward compatibility.
	 *
	 * Print Editor Template.
	 *
	 * Include the wrapper template of the editor.
	 *
	 * @since 2.2.0
	 * @access public
	 */
	public function print_editor_template() {
		include ELEMENTOR_PATH . 'includes/editor-templates/editor-wrapper.php';
	}

	/**
	 * Enqueue scripts.
	 *
	 * Registers all the editor scripts and enqueues them.
	 *
	 * @since 1.0.0
	 * @access public
	 */
	public function enqueue_scripts() {
		remove_action( 'wp_enqueue_scripts', [ $this, __FUNCTION__ ], 999999 );

		global $wp_styles, $wp_scripts;

		// Reset global variable
		$wp_styles = new \WP_Styles(); // phpcs:ignore WordPress.WP.GlobalVariablesOverride.Prohibited
		$wp_scripts = new \WP_Scripts(); // phpcs:ignore WordPress.WP.GlobalVariablesOverride.Prohibited

		$this->get_loader()->register_scripts();

		/**
		 * Before editor enqueue scripts.
		 *
		 * Fires before Elementor editor scripts are enqueued.
		 *
		 * @since 1.0.0
		 */
		do_action( 'elementor/editor/before_enqueue_scripts' );

		// Tweak for WP Admin menu icons
		wp_print_styles( 'editor-buttons' );

		$this->get_loader()->enqueue_scripts();

		Plugin::$instance->controls_manager->enqueue_control_scripts();

		/**
		 * After editor enqueue scripts.
		 *
		 * Fires after Elementor editor scripts are enqueued.
		 *
		 * @since 1.0.0
		 */
		do_action( 'elementor/editor/after_enqueue_scripts' );
	}

	/**
	 * Enqueue styles.
	 *
	 * Registers all the editor styles and enqueues them.
	 *
	 * @since 1.0.0
	 * @access public
	 */
	public function enqueue_styles() {
		/**
		 * Before editor enqueue styles.
		 *
		 * Fires before Elementor editor styles are enqueued.
		 *
		 * @since 1.0.0
		 */
		do_action( 'elementor/editor/before_enqueue_styles' );

		$this->get_loader()->register_styles();
		$this->get_loader()->enqueue_styles();

		$this->enqueue_theme_ui_styles();

		$breakpoints = Plugin::$instance->breakpoints->get_breakpoints();

		// The two breakpoints under 'tablet' need to be checked for values.
		if ( $breakpoints[ Breakpoints_Manager::BREAKPOINT_KEY_MOBILE ]->is_custom() || $breakpoints[ Breakpoints_Manager::BREAKPOINT_KEY_MOBILE_EXTRA ]->is_enabled() ) {
			wp_add_inline_style(
				'elementor-editor',
				'.elementor-device-tablet #elementor-preview-responsive-wrapper { width: ' . Plugin::$instance->breakpoints->get_device_min_breakpoint( Breakpoints_Manager::BREAKPOINT_KEY_TABLET ) . 'px; }'
			);
		}

		/**
		 * After editor enqueue styles.
		 *
		 * Fires after Elementor editor styles are enqueued.
		 *
		 * @since 1.0.0
		 */
		do_action( 'elementor/editor/after_enqueue_styles' );
	}

	private function enqueue_theme_ui_styles() {
		$ui_theme_selected = SettingsManager::get_settings_managers( 'editorPreferences' )->get_model()->get_settings( 'ui_theme' );

		$ui_themes = [
			'light',
			'dark',
		];

		if ( 'auto' === $ui_theme_selected || ! in_array( $ui_theme_selected, $ui_themes, true ) ) {
			$ui_light_theme_media_queries = '(prefers-color-scheme: light)';
			$ui_dark_theme_media_queries = '(prefers-color-scheme: dark)';
		} else {
			$ui_light_theme_media_queries = 'none';
			$ui_dark_theme_media_queries = 'none';

			if ( 'light' === $ui_theme_selected ) {
				$ui_light_theme_media_queries = 'all';
			} elseif ( 'dark' === $ui_theme_selected ) {
				$ui_dark_theme_media_queries = 'all';
			}
		}

		$this->enqueue_theme_ui( 'light', $ui_light_theme_media_queries );
		$this->enqueue_theme_ui( 'dark', $ui_dark_theme_media_queries );
	}

	private function enqueue_theme_ui( $ui_theme, $ui_theme_media_queries = 'all' ) {
		$suffix = Utils::is_script_debug() ? '' : '.min';

		wp_enqueue_style(
			'e-theme-ui-' . $ui_theme,
			ELEMENTOR_ASSETS_URL . 'css/theme-' . $ui_theme . $suffix . '.css',
			[],
			ELEMENTOR_VERSION,
			$ui_theme_media_queries
		);
	}

	/**
	 * Editor head trigger.
	 *
	 * Fires the 'elementor/editor/wp_head' action in the head tag in Elementor
	 * editor.
	 *
	 * @since 1.0.0
	 * @access public
	 */
	public function editor_head_trigger() {
		/**
		 * Elementor editor head.
		 *
		 * Fires on Elementor editor head tag.
		 *
		 * Used to prints scripts or any other data in the head tag.
		 *
		 * @since 1.0.0
		 */
		do_action( 'elementor/editor/wp_head' );
	}

	/**
	 * WP footer.
	 *
	 * Prints Elementor editor with all the editor templates, and render controls,
	 * widgets and content elements.
	 *
	 * Fired by `wp_footer` action.
	 *
	 * @since 1.0.0
	 * @access public
	 */
	public function wp_footer() {
		$plugin = Plugin::$instance;

		$plugin->controls_manager->render_controls();
		$plugin->widgets_manager->render_widgets_content();
		$plugin->elements_manager->render_elements_content();

		$plugin->dynamic_tags->print_templates();

		$this->get_loader()->register_additional_templates();

		/**
		 * Elementor editor footer.
		 *
		 * Fires on Elementor editor before closing the body tag.
		 *
		 * Used to prints scripts or any other HTML before closing the body tag.
		 *
		 * @since 1.0.0
		 */
		do_action( 'elementor/editor/footer' );
	}

	/**
	 * Set edit mode.
	 *
	 * Used to update the edit mode.
	 *
	 * @since 1.0.0
	 * @access public
	 *
	 * @param bool $edit_mode Whether the edit mode is active.
	 */
	public function set_edit_mode( $edit_mode ) {
		$this->is_edit_mode = $edit_mode;
	}

	/**
	 * Editor constructor.
	 *
	 * Initializing Elementor editor and redirect from old URL structure of
	 * Elementor editor.
	 *
	 * @since 1.0.0
	 * @access public
	 */
	public function __construct() {
		Plugin::$instance->data_manager_v2->register_controller( new Data\Globals\Controller() );

		$this->notice_bar = new Notice_Bar();
		$this->promotion = new Promotion();

		add_action( 'admin_action_elementor', [ $this, 'init' ] );
		add_action( 'template_redirect', [ $this, 'redirect_to_new_url' ] );

		$this->register_editor_v2_experiment();

		// Handle autocomplete feature for URL control.
		add_filter( 'wp_link_query_args', [ $this, 'filter_wp_link_query_args' ] );
		add_filter( 'wp_link_query', [ $this, 'filter_wp_link_query' ] );
	}

	/**
	 * @since 2.2.0
	 * @access public
	 */
	public function filter_wp_link_query_args( $query ) {
		$library_cpt_key = array_search( Source_Local::CPT, $query['post_type'], true );
		if ( false !== $library_cpt_key ) {
			unset( $query['post_type'][ $library_cpt_key ] );
		}

		return $query;
	}

	/**
	 * @since 2.2.0
	 * @access public
	 */
	public function filter_wp_link_query( $results ) {

		// PHPCS - The user data is not used.
		if ( isset( $_POST['editor'] ) && 'elementor' === $_POST['editor'] ) {  // phpcs:ignore WordPress.Security.NonceVerification.Missing
			$post_type_object = get_post_type_object( 'post' );
			$post_label = $post_type_object->labels->singular_name;

			foreach ( $results as & $result ) {
				if ( 'post' === get_post_type( $result['ID'] ) ) {
					$result['info'] = $post_label;
				}
			}
		}

		return $results;
	}

	public function set_post_id( $post_id ) {
		$this->post_id = $post_id;
	}

	/**
	 * Get loader.
	 *
	 * @return Editor_Loader_Interface
	 */
	private function get_loader() {
		if ( ! $this->loader ) {
			$this->loader = Editor_Loader_Factory::create();

			$this->loader->init();
		}

		return $this->loader;
	}

	/**
	 * Adding Editor V2 experiment.
	 *
	 * @return void
	 * @throws \Exception
	 */
	private function register_editor_v2_experiment() {
		Plugin::$instance->experiments->add_feature( [
			'name' => static::EDITOR_V2_EXPERIMENT_NAME,
			'title' => esc_html__( 'Editor Top Bar', 'elementor' ),
			'description' => sprintf(
				'%1$s <a href="https://go.elementor.com/wp-dash-elementor-top-bar/" target="_blank">%2$s</a>',
				esc_html__( 'Get a sneak peek of the new Editor powered by React. The beautiful design and experimental layout of the Top bar are just some of the exciting tools on their way.', 'elementor' ),
				esc_html__( 'Learn more', 'elementor' )
			),
			'default' => Experiments_Manager::STATE_INACTIVE,
			'release_status' => Experiments_Manager::RELEASE_STATUS_BETA,
		] );
	}

	/**
	 * Get elements presets.
	 *
	 * @return array
	 */
	public function get_elements_presets() {
		$element_types = Plugin::$instance->elements_manager->get_element_types();
		$presets = [];

		foreach ( $element_types as $el_type => $element ) {
			$this->check_element_for_presets( $element, $el_type, $presets );
		}

		return $presets;
	}

	/**
	 * @return void
	 */
	private function check_element_for_presets( $element, $el_type, &$presets ) {
		$element_presets = $element->get_panel_presets();

		if ( empty( $element_presets ) ) {
			return;
		}

		foreach ( $element_presets as $key => $preset ) {
			$this->maybe_add_preset( $el_type, $preset, $key, $presets );
		}
	}

	/**
	 * @return void
	 */
	private function maybe_add_preset( $el_type, $preset, $key, &$presets ) {
		if ( $this->is_valid_preset( $el_type, $preset ) ) {
			$presets[ $key ] = $preset;
		}
	}

	/**
	 * @return boolean
	 */
	private function is_valid_preset( $el_type, $preset ) {
		return isset( $preset['replacements']['custom']['originalWidget'] )
			&& $el_type === $preset['replacements']['custom']['originalWidget'];
	}
}

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