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Editing: wc-enhanced-select.js

/*global wc_enhanced_select_params */
jQuery( function( $ ) {

function getEnhancedSelectFormatString() {
		return {
			'language': {
				errorLoading: function() {
					// Workaround for https://github.com/select2/select2/issues/4355 instead of i18n_ajax_error.
					return wc_enhanced_select_params.i18n_searching;
				},
				inputTooLong: function( args ) {
					var overChars = args.input.length - args.maximum;

if ( 1 === overChars ) {
						return wc_enhanced_select_params.i18n_input_too_long_1;
					}

return wc_enhanced_select_params.i18n_input_too_long_n.replace( '%qty%', overChars );
				},
				inputTooShort: function( args ) {
					var remainingChars = args.minimum - args.input.length;

if ( 1 === remainingChars ) {
						return wc_enhanced_select_params.i18n_input_too_short_1;
					}

return wc_enhanced_select_params.i18n_input_too_short_n.replace( '%qty%', remainingChars );
				},
				loadingMore: function() {
					return wc_enhanced_select_params.i18n_load_more;
				},
				maximumSelected: function( args ) {
					if ( args.maximum === 1 ) {
						return wc_enhanced_select_params.i18n_selection_too_long_1;
					}

return wc_enhanced_select_params.i18n_selection_too_long_n.replace( '%qty%', args.maximum );
				},
				noResults: function() {
					return wc_enhanced_select_params.i18n_no_matches;
				},
				searching: function() {
					return wc_enhanced_select_params.i18n_searching;
				}
			}
		};
	}

try {
		$( document.body )

.on( 'wc-enhanced-select-init', function() {

// Regular select boxes
				$( ':input.wc-enhanced-select, :input.chosen_select' ).filter( ':not(.enhanced)' ).each( function() {
					var select2_args = $.extend({
						minimumResultsForSearch: 10,
						allowClear:  $( this ).data( 'allow_clear' ) ? true : false,
						placeholder: $( this ).data( 'placeholder' )
					}, getEnhancedSelectFormatString() );

$( this ).selectWoo( select2_args ).addClass( 'enhanced' );
				});

$( ':input.wc-enhanced-select-nostd, :input.chosen_select_nostd' ).filter( ':not(.enhanced)' ).each( function() {
					var select2_args = $.extend({
						minimumResultsForSearch: 10,
						allowClear:  true,
						placeholder: $( this ).data( 'placeholder' )
					}, getEnhancedSelectFormatString() );

$( this ).selectWoo( select2_args ).addClass( 'enhanced' );
				});

function display_result( self, select2_args ) {
					select2_args = $.extend( select2_args, getEnhancedSelectFormatString() );

$( self ).selectWoo( select2_args ).addClass( 'enhanced' );

if ( $( self ).data( 'sortable' ) ) {
						var $select = $(self);
						var $list   = $( self ).next( '.select2-container' ).find( 'ul.select2-selection__rendered' );

$list.sortable({
							placeholder : 'ui-state-highlight select2-selection__choice',
							forcePlaceholderSize: true,
							items       : 'li:not(.select2-search__field)',
							tolerance   : 'pointer',
							stop: function() {
								$( $list.find( '.select2-selection__choice' ).get().reverse() ).each( function() {
									var id     = $( this ).data( 'data' ).id;
									var option = $select.find( 'option[value="' + id + '"]' )[0];
									$select.prepend( option );
								} );
							}
						});
					// Keep multiselects ordered alphabetically if they are not sortable.
					} else if ( $( self ).prop( 'multiple' ) ) {
						$( self ).on( 'change', function(){
							var $children = $( self ).children();
							$children.sort(function(a, b){
								var atext = a.text.toLowerCase();
								var btext = b.text.toLowerCase();

if ( atext > btext ) {
									return 1;
								}
								if ( atext < btext ) {
									return -1;
								}
								return 0;
							});
							$( self ).html( $children );
						});
					}
				}

// Ajax product search box
				$( ':input.wc-product-search' ).filter( ':not(.enhanced)' ).each( function() {
					var select2_args = {
						allowClear:  $( this ).data( 'allow_clear' ) ? true : false,
						placeholder: $( this ).data( 'placeholder' ),
						minimumInputLength: $( this ).data( 'minimum_input_length' ) ? $( this ).data( 'minimum_input_length' ) : '3',
						escapeMarkup: function( m ) {
							return m;
						},
						ajax: {
							url:         wc_enhanced_select_params.ajax_url,
							dataType:    'json',
							delay:       250,
							data:        function( params ) {
								return {
									term         : params.term,
									action       : $( this ).data( 'action' ) || 'woocommerce_json_search_products_and_variations',
									security     : wc_enhanced_select_params.search_products_nonce,
									exclude      : $( this ).data( 'exclude' ),
									exclude_type : $( this ).data( 'exclude_type' ),
									include      : $( this ).data( 'include' ),
									limit        : $( this ).data( 'limit' ),
									display_stock: $( this ).data( 'display_stock' )
								};
							},
							processResults: function( data ) {
								var terms = [];
								if ( data ) {
									$.each( data, function( id, text ) {
										terms.push( { id: id, text: text } );
									});
								}
								return {
									results: terms
								};
							},
							cache: true
						}
					};

display_result( this, select2_args );
				});

// Ajax Page Search.
				$( ':input.wc-page-search' ).filter( ':not(.enhanced)' ).each( function() {
					var select2_args = {
						allowClear:  $( this ).data( 'allow_clear' ) ? true : false,
						placeholder: $( this ).data( 'placeholder' ),
						minimumInputLength: $( this ).data( 'minimum_input_length' ) ? $( this ).data( 'minimum_input_length' ) : '3',
						escapeMarkup: function( m ) {
							return m;
						},
						ajax: {
							url:         wc_enhanced_select_params.ajax_url,
							dataType:    'json',
							delay:       250,
							data:        function( params ) {
								return {
									term         : params.term,
									action       : $( this ).data( 'action' ) || 'woocommerce_json_search_pages',
									security     : wc_enhanced_select_params.search_pages_nonce,
									exclude      : $( this ).data( 'exclude' ),
									post_status  : $( this ).data( 'post_status' ),
									limit        : $( this ).data( 'limit' ),
								};
							},
							processResults: function( data ) {
								var terms = [];
								if ( data ) {
									$.each( data, function( id, text ) {
										terms.push( { id: id, text: text } );
									} );
								}
								return {
									results: terms
								};
							},
							cache: true
						}
					};

$( this ).selectWoo( select2_args ).addClass( 'enhanced' );
				});

// Ajax customer search boxes
				$( ':input.wc-customer-search' ).filter( ':not(.enhanced)' ).each( function() {
					var select2_args = {
						allowClear:  $( this ).data( 'allow_clear' ) ? true : false,
						placeholder: $( this ).data( 'placeholder' ),
						minimumInputLength: $( this ).data( 'minimum_input_length' ) ? $( this ).data( 'minimum_input_length' ) : '1',
						escapeMarkup: function( m ) {
							return m;
						},
						ajax: {
							url:         wc_enhanced_select_params.ajax_url,
							dataType:    'json',
							delay:       1000,
							data:        function( params ) {
								return {
									term:     params.term,
									action:   'woocommerce_json_search_customers',
									security: wc_enhanced_select_params.search_customers_nonce,
									exclude:  $( this ).data( 'exclude' )
								};
							},
							processResults: function( data ) {
								var terms = [];
								if ( data ) {
									$.each( data, function( id, text ) {
										terms.push({
											id: id,
											text: text
										});
									});
								}
								return {
									results: terms
								};
							},
							cache: true
						}
					};

select2_args = $.extend( select2_args, getEnhancedSelectFormatString() );

$( this ).selectWoo( select2_args ).addClass( 'enhanced' );

if ( $( this ).data( 'sortable' ) ) {
						var $select = $(this);
						var $list   = $( this ).next( '.select2-container' ).find( 'ul.select2-selection__rendered' );

// Ajax category search boxes
				$( ':input.wc-category-search' ).filter( ':not(.enhanced)' ).each( function() {
					var return_format = $( this ).data( 'return_id' ) ? 'id' : 'slug';

$( this ).selectWoo( select2_args ).addClass( 'enhanced' );
				});

// Ajax category search boxes
				$( ':input.wc-taxonomy-term-search' ).filter( ':not(.enhanced)' ).each( function() {
					var return_format = $( this ).data( 'return_id' ) ? 'id' : 'slug';

$( this ).selectWoo( select2_args ).addClass( 'enhanced' );
				});

$( ':input.wc-attribute-search' ).filter( ':not(.enhanced)' ).each( function() {
					var select2Element = this;
					var select2_args = $.extend( {
						allowClear        : $( this ).data( 'allow_clear' ) ? true : false,
						placeholder       : $( this ).data( 'placeholder' ),
						minimumInputLength: $( this ).data( 'minimum_input_length' ) !== null && $( this ).data( 'minimum_input_length' ) !== undefined ? $( this ).data( 'minimum_input_length' ) : '3',
						escapeMarkup      : function( m ) {
							return m;
						},
						ajax: {
							url:         wc_enhanced_select_params.ajax_url,
							dataType:    'json',
							delay:       250,
							data:        function( params ) {
								return {
									term:     params.term,
									action:   'woocommerce_json_search_product_attributes',
									security: wc_enhanced_select_params.search_product_attributes_nonce
								};
							},
							processResults: function( data ) {
								var disabledItems = $( select2Element ).data('disabled-items') || [];
								var terms = [];
								if ( data ) {
									$.each( data, function( id, term ) {
										terms.push({
											id:   term.slug,
											text: term.name,
											disabled: disabledItems.includes( term.slug )
										});
									});
								}
								return {
									results: terms
								};
							},
							cache: true
						}
					}, getEnhancedSelectFormatString() );

$( this ).selectWoo( select2_args ).addClass( 'enhanced' );
				});
			})

// WooCommerce Backbone Modal
			.on( 'wc_backbone_modal_before_remove', function() {
				$( '.wc-enhanced-select, :input.wc-product-search, :input.wc-customer-search' ).filter( '.select2-hidden-accessible' )
					.selectWoo( 'close' );
			})

.trigger( 'wc-enhanced-select-init' );

$( 'html' ).on( 'click', function( event ) {
			if ( this === event.target ) {
				$( '.wc-enhanced-select, :input.wc-product-search, :input.wc-customer-search' ).filter( '.select2-hidden-accessible' )
					.selectWoo( 'close' );
			}
		} );
	} catch( err ) {
		// If select2 failed (conflict?) log the error but don't stop other scripts breaking.
		window.console.log( err );
	}
});