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Editing: classic-editor.js

/******/ "use strict";

;// ./js/src/lib/confirmation-modal.js
/**
 * @package Polylang
 */

const languagesList = jQuery( '.post_lang_choice' );

// Dialog box for alerting the user about a risky changing.
const initializeConfirmationModal = () => {
	// We can't use underscore or lodash in this common code because it depends of the context classic or block editor.
	// Classic editor underscore is loaded, Block editor lodash is loaded.
	const { __ } = wp.i18n;

// Create dialog container.
	const dialogContainer = jQuery(
		'<div/>',
		{
			id: 'pll-dialog',
			style: 'display:none;'
		}
	).text( __( 'Are you sure you want to change the language of the current content?', 'polylang' ) );

// Put it after languages list dropdown.
	// PHPCS ignore dialogContainer is a new safe HTML code generated above.
	languagesList.after( dialogContainer ); // phpcs:ignore WordPressVIPMinimum.JS.HTMLExecutingFunctions.after

const dialogResult = new Promise(
		( confirm, cancel ) => {
			const confirmDialog = ( what ) => { // phpcs:ignore PEAR.Functions.FunctionCallSignature.Indent
				switch ( what ) { // phpcs:ignore PEAR.Functions.FunctionCallSignature.Indent
					case 'yes':
						// Confirm the new language.
						languagesList.data( 'old-value', languagesList.children( ':selected' ).first().val() );
						confirm();
						break;
					case 'no':
						// Revert to the old language.
						languagesList.val( languagesList.data( 'old-value' ) );
						cancel( 'Cancel' );
						break;
				}
				dialogContainer.dialog( 'close' ); // phpcs:ignore PEAR.Functions.FunctionCallSignature.Indent
			} // phpcs:ignore PEAR.Functions.FunctionCallSignature.Indent

// Initialize dialog box in the case a language is selected but not added in the list.
			const dialogOptions = {
				autoOpen: false,
				modal: true,
				draggable: false,
				resizable: false,
				title: __( 'Change language', 'polylang' ),
				minWidth: 600,
				maxWidth: '100%',
				open: function ( event, ui ) {
					// Change dialog box position for rtl language
					if ( jQuery( 'body' ).hasClass( 'rtl' ) ) {
						jQuery( this ).parent().css(
							{
								right: jQuery( this ).parent().css( 'left' ),
								left: 'auto'
							}
						);
					}
				},
				close: function ( event, ui ) {
					// When we're closing the dialog box we need to cancel the language change as we click on Cancel button.
					confirmDialog( 'no' );
				},
				buttons: [
					{
						text: __( 'OK', 'polylang' ),
						click: function ( event ) {
							confirmDialog( 'yes' );
						}
					},
					{
						text: __( 'Cancel', 'polylang' ),
						click: function ( event ) {
							confirmDialog( 'no' );
						}
					}
				]
			};

if ( jQuery.ui.version >= '1.12.0' ) {
				Object.assign( dialogOptions, { classes: { 'ui-dialog': 'pll-confirmation-modal' } } );
			} else {
			Object.assign( dialogOptions, { dialogClass: 'pll-confirmation-modal' } ); // jQuery UI 1.11.4 - WP < 5.6
			}

dialogContainer.dialog( dialogOptions );
		}
	);
	return { dialogContainer, dialogResult };
}

const initializeLanguageOldValue = () => {
	// Keep the old language value to be able to compare to the new one and revert to it if necessary.
	languagesList.attr( 'data-old-value', languagesList.children( ':selected' ).first().val() );
};

;// ./js/src/lib/metabox-autocomplete.js
/**
 * @package Polylang
 */

// Translations autocomplete input box.
function initMetaboxAutoComplete() {
	jQuery('.tr_lang').each(
		function () {
			var tr_lang = jQuery(this).attr('id').substring(8);
			var td = jQuery(this).parent().parent().siblings('.pll-edit-column');

jQuery(this).autocomplete(
				{
					minLength: 0,
					source: ajaxurl + '?action=pll_posts_not_translated' +
						'&post_language=' + jQuery('.post_lang_choice').val() +
						'&translation_language=' + tr_lang +
						'&post_type=' + jQuery('#post_type').val() +
						'&_pll_nonce=' + jQuery('#_pll_nonce').val(),
					select: function (event, ui) {
						jQuery('#htr_lang_' + tr_lang).val(ui.item.id);
						// ui.item.link is built and come from server side and is well escaped when necessary
						td.html(ui.item.link); // phpcs:ignore WordPressVIPMinimum.JS.HTMLExecutingFunctions.html
					},
				}
			);

// when the input box is emptied
			jQuery(this).on(
				'blur',
				function () {
					if ( ! jQuery(this).val()  ) {
						jQuery('#htr_lang_' + tr_lang).val(0);
						// Value is retrieved from HTML already generated server side
						td.html(td.siblings('.hidden').children().clone()); // phpcs:ignore WordPressVIPMinimum.JS.HTMLExecutingFunctions.html
					}
				}
			);
		}
	);
}

;// ./js/src/classic-editor.js
/**
 * @package Polylang
 */

// tag suggest in metabox
jQuery(
	function ( $ ) {
		$.ajaxPrefilter(
			function ( options, originalOptions, jqXHR ) {
				var lang = $( '.post_lang_choice' ).val();
				if ( 'string' === typeof options.data && -1 !== options.url.indexOf( 'action=ajax-tag-search' ) && lang ) {
					options.data = 'lang=' + lang + '&' + options.data;
				}
			}
		);
	}
);

// overrides tagBox.get
jQuery(
	function ( $ ) {
		// overrides function to add the language
		tagBox.get = function ( id ) {
			var tax = id.substr( id.indexOf( '-' ) + 1 );

// add the language in the $_POST variable
			var data = {
				action: 'get-tagcloud',
				lang:   $( '.post_lang_choice' ).val(),
				tax:    tax
			}

$.post(
				ajaxurl,
				data,
				function ( r, stat ) {
					if ( 0 == r || 'success' != stat ) {
						r = wpAjax.broken;
					}

// @see code from WordPress core https://github.com/WordPress/WordPress/blob/5.2.2/wp-admin/js/tags-box.js#L291
					// @see wp_generate_tag_cloud function which generate the escaped HTML https://github.com/WordPress/WordPress/blob/a02b5cc2a8eecb8e076fbb7cf4de7bd2ec8a8eb1/wp-includes/category-template.php#L966-L975
					r = $( '<div />' ).addClass( 'the-tagcloud' ).attr( 'id', 'tagcloud-' + tax ).html( r ); // phpcs:ignore WordPressVIPMinimum.JS.HTMLExecutingFunctions.html
					$( 'a', r ).on(
						'click',
						function () {
							tagBox.flushTags( $( this ).closest( '.inside' ).children( '.tagsdiv' ), this );
							return false;
						}
					);

var tagCloud = $( '#tagcloud-' + tax );
					// add an if else condition to allow modifying the tags outputted when switching the language
					var v = tagCloud.css( 'display' );
					if ( v ) {
						// See the comment above when r variable is created.
						$( '#tagcloud-' + tax ).replaceWith( r ); // phpcs:ignore WordPressVIPMinimum.JS.HTMLExecutingFunctions.replaceWith
						$( '#tagcloud-' + tax ).css( 'display', v );
					}
					else {
						// See the comment above when r variable is created.
						$( '#' + id ).after( r ); // phpcs:ignore WordPressVIPMinimum.JS.HTMLExecutingFunctions.after
					}
				}
			);
		}
	}
);

jQuery(
	function ( $ ) {
		// collect taxonomies - code partly copied from WordPress
		var taxonomies = new Array();
		$( '.categorydiv' ).each(
			function () {
				var this_id = $( this ).attr( 'id' ), taxonomyParts, taxonomy;

taxonomyParts = this_id.split( '-' );
				taxonomyParts.shift();
				taxonomy = taxonomyParts.join( '-' );
				taxonomies.push( taxonomy ); // store the taxonomy for future use

// add our hidden field in the new category form - for each hierarchical taxonomy
				// to set the language when creating a new category
				// html code inserted come from html code itself.
				$( '#' + taxonomy + '-add-submit' ).before( // phpcs:ignore WordPressVIPMinimum.JS.HTMLExecutingFunctions.before
					$( '<input />' ).attr( 'type', 'hidden' )
						.attr( 'id', taxonomy + '-lang' )
						.attr( 'name', 'term_lang_choice' )
						.attr( 'value', $( '.post_lang_choice' ).val() )
				);
			}
		);

// Initialize current language to be able to compare if it changes.
		initializeLanguageOldValue();

// ajax for changing the post's language in the languages metabox
		$( '.post_lang_choice' ).on(
			'change',
			function ( event ) {
				// Initialize the confirmation dialog box.
				const confirmationModal = initializeConfirmationModal();
				const { dialogContainer: dialog } = confirmationModal;
				let { dialogResult } = confirmationModal;
				// The selected option in the dropdown list.
				const selectedOption = event.target;

if ( $( this ).data( 'old-value' ) !== selectedOption.value && ! isEmptyPost() ) {
					dialog.dialog( 'open' );
				} else {
					dialogResult = Promise.resolve();
				}

dialogResult.then(
					() => {
						var data = {
							action:     'post_lang_choice',
							lang:       selectedOption.value,
							post_type:  $( '#post_type' ).val(),
							taxonomies: taxonomies,
							post_id:    $( '#post_ID' ).val(),
							_pll_nonce: $( '#_pll_nonce' ).val()
						}

$.post(
							ajaxurl,
							data,
							function ( response ) {
								// Target a non existing WP HTML id to avoid a conflict with WP ajax requests.
								var res = wpAjax.parseAjaxResponse( response, 'pll-ajax-response' );
								$.each(
									res.responses,
									function () {
										switch ( this.what ) {
											case 'translations': // translations fields
												// Data is built and come from server side and is well escaped when necessary
												$( '.translations' ).html( this.data ); // phpcs:ignore WordPressVIPMinimum.JS.HTMLExecutingFunctions.html
												initMetaboxAutoComplete();
											break;
											case 'taxonomy': // categories metabox for posts
												var tax = this.data;
												// @see wp_terms_checklist https://github.com/WordPress/WordPress/blob/5.2.2/wp-admin/includes/template.php#L175
												// @see https://github.com/WordPress/WordPress/blob/5.2.2/wp-admin/includes/class-walker-category-checklist.php#L89-L111
												$( '#' + tax + 'checklist' ).html( this.supplemental.all ); // phpcs:ignore WordPressVIPMinimum.JS.HTMLExecutingFunctions.html
												// @see wp_popular_terms_checklist https://github.com/WordPress/WordPress/blob/5.2.2/wp-admin/includes/template.php#L236
												$( '#' + tax + 'checklist-pop' ).html( this.supplemental.populars ); // phpcs:ignore WordPressVIPMinimum.JS.HTMLExecutingFunctions.html
												// @see wp_dropdown_categories https://github.com/WordPress/WordPress/blob/5.5.1/wp-includes/category-template.php#L336
												// which is called by PLL_Admin_Classic_Editor::post_lang_choice to generate supplemental.dropdown
												$( '#new' + tax + '_parent' ).replaceWith( this.supplemental.dropdown ); // phpcs:ignore WordPressVIPMinimum.JS.HTMLExecutingFunctions.replaceWith
												$( '#' + tax + '-lang' ).val( $( '.post_lang_choice' ).val() ); // hidden field
											break;
											case 'pages': // parent dropdown list for pages
												// @see wp_dropdown_pages https://github.com/WordPress/WordPress/blob/5.2.2/wp-includes/post-template.php#L1186-L1208
												// @see https://github.com/WordPress/WordPress/blob/5.2.2/wp-includes/class-walker-page-dropdown.php#L88
												$( '#parent_id' ).html( this.data ); // phpcs:ignore WordPressVIPMinimum.JS.HTMLExecutingFunctions.html
											break;
											case 'flag': // flag in front of the select dropdown
												// Data is built and come from server side and is well escaped when necessary
												$( '.pll-select-flag' ).html( this.data ); // phpcs:ignore WordPressVIPMinimum.JS.HTMLExecutingFunctions.html
											break;
											case 'permalink': // Sample permalink
												var div = $( '#edit-slug-box' );
												if ( '-1' != this.data && div.children().length ) {
													// @see get_sample_permalink_html https://github.com/WordPress/WordPress/blob/5.2.2/wp-admin/includes/post.php#L1425-L1454
													div.html( this.data ); // phpcs:ignore WordPressVIPMinimum.JS.HTMLExecutingFunctions.html
												}
											break;
										}
									}
								);

// Creates an event once the language has been successfully changed.
								const onPostLangChoice = new CustomEvent(
									"onPostLangChoice",
									{
										detail: {
											lang: JSON.parse( selectedOption.options[selectedOption.options.selectedIndex].getAttribute( 'data-lang' ) )
										},
									}
								);
								document.dispatchEvent( onPostLangChoice );
							}
						)
					},
					() => {} // Do nothing when promise is rejected by clicking the Cancel dialog button.
				);

function isEmptyPost() {
					const title = $( 'input#title' ).val();
					const content = $( 'textarea#content' ).val();
					const excerpt = $( 'textarea#excerpt' ).val();

return ! title && ! content && ! excerpt;
				}
			}
		);

// Listen to `onPostLangChoice` to perform actions after the language has been changed.
		document.addEventListener(
			'onPostLangChoice',
			( e ) => {
				// Update the old language with the new one to be able to compare it in the next changing.
				initializeLanguageOldValue();

// Modifies the language in the tag cloud.
				$( '.tagcloud-link' ).each(
					function () {
						var id = $( this ).attr( 'id' );
						tagBox.get( id );
					}
				);

// Modifies the text direction.
				let dir = e.detail.lang.is_rtl ? 'rtl' : 'ltr'
				$( 'body' ).removeClass( 'pll-dir-rtl' ).removeClass( 'pll-dir-ltr' ).addClass( 'pll-dir-' + dir );
				$( '#content_ifr' ).contents().find( 'html' ).attr( 'lang', e.detail.lang.locale ).attr( 'dir', dir );
				$( '#content_ifr' ).contents().find( 'body' ).attr( 'dir', dir );

// Refresh media libraries.
				pll.media.resetAllAttachmentsCollections();
			}
		);

initMetaboxAutoComplete();
	}
);

/**
 * @since 3.0
 *
 * @namespace pll
 */
var pll = window.pll || {};

/**
 * @since 3.0
 *
 * @namespace pll.media
 */
_.extend( pll, { media: {} } );

/**
 * @since 3.0
 *
 * @alias pll.media
 * @memberOf pll
 * @namespace
 */
var media = _.extend(
	pll.media, /** @lends pll.media.prototype */
	{
		/**
		 * TODO: Find a way to delete references to Attachments collections that are not used anywhere else.
		 *
		 * @type {wp.media.model.Attachments}
		 */
		attachmentsCollections : [],

/**
		 * Imitates { @see wp.media.query } but log all Attachments collections created.
		 *
		 * @param {Object} [props]
		 * @return {wp.media.model.Attachments}
		 */
		query: function ( props ) {
			var attachments = pll.media.query.delegate( props );

pll.media.attachmentsCollections.push( attachments );

return attachments;
		},

resetAllAttachmentsCollections: function () {
			this.attachmentsCollections.forEach(
				function ( attachmentsCollection ) {
					/**
					 * First reset the { @see wp.media.model.Attachments } collection.
					 * Then, if it is mirroring a { @see wp.media.model.Query } collection,
					 * refresh this one too, so it will fetch new data from the server,
					 * and then the wp.media.model.Attachments collection will synchronize with the new data.
					 */
					attachmentsCollection.reset();
					if (attachmentsCollection.mirroring) {
						attachmentsCollection.mirroring._hasMore = true;
						attachmentsCollection.mirroring.reset();
					}
				}
			);
		}
	}
);

if ( 'undefined' !== typeof wp && 'undefined' !== typeof wp.media ) {

/**
	 * @since 3.0
	 *
	 * @memberOf pll.media
	 */
	media.query = _.extend(
		media.query, /** @lends pll.media.query prototype */
		{
			/**
			 * @type Function References WordPress { @see wp.media.query } constructor
			 */
			delegate: wp.media.query
		}
	)

// Substitute WordPress media query shortcut with our decorated function.
	wp.media.query = media.query

}

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