installed plugin Easy Digital Downloads version 3.1.0.3

wp-content/plugins/easy-digital-downloads/assets/js/admin/orders/index.js

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+/**
+ * Internal dependencies
+ */
+import OrderOverview from './order-overview';
+import './order-details';
+import { jQueryReady } from 'utils/jquery.js';
+
+jQueryReady( () => {
+	// Order Overview.
+	if ( window.eddAdminOrderOverview ) {
+		OrderOverview.render();
+
+		/**
+		 * Add validation to Add/Edit Order form.
+		 *
+		 * @since 3.0
+		 */
+		( () => {
+			const overview = OrderOverview.options.state;
+			const orderItems = overview.get( 'items' );
+
+			const noItemErrorEl = document.getElementById( 'edd-add-order-no-items-error' );
+			const noCustomerErrorEl = document.getElementById( 'edd-add-order-customer-error' );
+
+			const assignCustomerEl = document.getElementById( 'customer_id' );
+			const newCustomerEmailEl = document.getElementById( 'edd_new_customer_email' );
+
+			[
+				'edd-add-order-form',
+				'edd-edit-order-form',
+			].forEach( ( form ) => {
+				const formEl = document.getElementById( form );
+
+				if ( ! formEl ) {
+					return;
+				}
+
+				formEl.addEventListener( 'submit', submitForm );
+			} );
+
+			/**
+			 * Submits an Order form.
+			 *
+			 * @since 3.0
+			 *
+			 * @param {Object} event Submit event.
+			 */
+			function submitForm( event ) {
+				let hasError = false;
+
+				// Ensure `OrderItem`s.
+				if ( noItemErrorEl ) {
+					if ( 0 === orderItems.length ) {
+						noItemErrorEl.style.display = 'block';
+						hasError = true;
+					} else {
+						noItemErrorEl.style.display = 'none';
+					}
+				}
+
+				// Ensure Customer.
+				if ( noCustomerErrorEl ) {
+					if ( '0' === assignCustomerEl.value && '' === newCustomerEmailEl.value ) {
+						noCustomerErrorEl.style.display = 'block';
+						hasError = true;
+					} else {
+						noCustomerErrorEl.style.display = 'none';
+					}
+
+					if ( true === hasError ) {
+						event.preventDefault();
+					}
+				}
+			}
+
+			/**
+			 * Remove `OrderItem` notice when an `OrderItem` is added.
+			 *
+			 * @since 3.0
+			 */
+			orderItems.on( 'add', function() {
+				noItemErrorEl.style.display = 'none';
+			} );
+
+			/**
+			 * Remove Customer notice when a Customer is changed.
+			 *
+			 * Uses a jQuery binding for Chosen support.
+			 *
+			 * @since 3.0
+			 *
+			 * @param {Object} event Change event.
+			 */
+			$( assignCustomerEl ).on( 'change', ( event ) => {
+				const val = event.target.value;
+
+				if ( '0' !== val ) {
+					noCustomerErrorEl.style.display = 'none';
+				}
+			} )
+
+			if ( newCustomerEmailEl ) {
+				/**
+				 * Remove Customer notice when a Customer is set.
+				 *
+				 * @since 3.0
+				 *
+				 * @param {Object} event Input event.
+				 */
+				newCustomerEmailEl.addEventListener( 'input', ( event ) => {
+					const val = event.target.value;
+
+					if ( '' !== val ) {
+						noCustomerErrorEl.style.display = 'none';
+					}
+				} );
+			}
+		} )();
+	}
+
+	// Move `.update-nag` items below the top header.
+	// `#update-nag` is legacy styling, which core still supports.
+	//
+	// `.notice` items are properly moved, but WordPress core
+	// does not move `.update-nag`.
+	if ( 0 !== $( '.edit-post-editor-regions__header' ).length ) {
+		$( 'div.update-nag, div#update-nag' ).insertAfter( $( '.edit-post-editor-regions__header' ) );
+	}
+
+} );