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( function() { |
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if ( ! window.frmSquareVars ) { |
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return; |
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} |
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|
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const { appId } = frmSquareVars; |
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const { locationId } = frmSquareVars; |
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|
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// Track the state of the Square card element |
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let squareCardElementIsComplete = false; |
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let thisForm = null; |
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let running = 0; |
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|
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let cardGlobal; |
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|
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const buyerTokens = {}; |
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|
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// Track the state of each field in the card form. |
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// postalCode is not included by default because Square hides it |
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// for cards issued in countries that don't require it (e.g., Australia). |
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const cardFields = { |
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cardNumber: false, |
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expirationDate: false, |
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cvv: false |
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}; |
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|
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async function initializeCard( payments ) { |
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const cardElement = document.querySelector( '.frm-card-element' ); |
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if ( ! cardElement ) { |
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return; |
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} |
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|
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const card = await payments.card(); |
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const cardStyle = frmSquareVars.style; |
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await card.attach( '.frm-card-element' ); |
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|
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card.configure( { style: cardStyle } ); |
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|
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// Track when the postal code field is rendered by Square. |
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// Square hides the postal code for cards issued in certain countries. |
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card.addEventListener( 'focusClassAdded', event => { |
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const { field } = event.detail; |
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if ( field === 'postalCode' ) { |
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cardFields.postalCode = event.detail.currentState.isCompletelyValid; |
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} |
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} ); |
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|
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// Add event listener to track when the card form is valid |
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card.addEventListener( 'focusClassRemoved', event => { |
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const { field } = event.detail; |
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const value = event.detail.currentState.isCompletelyValid; |
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|
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cardFields[ field ] = value; |
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|
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// Check if all fields are valid |
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squareCardElementIsComplete = Object.values( cardFields ).every( item => item === true ); |
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|
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// Update form submit button based on form validity |
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if ( thisForm ) { |
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if ( squareCardElementIsComplete ) { |
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enableSubmit(); |
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} else { |
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disableSubmit( thisForm ); |
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} |
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} |
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} ); |
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|
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/** |
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* Enable the submit button when postal code is completed. |
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* This is the best we can do for now as Square does not provide |
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* any way of knowing that the credit card was auto-filled. |
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*/ |
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card.addEventListener( 'postalCodeChanged', function( event ) { |
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if ( event.detail.currentState.isCompletelyValid ) { |
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cardFields.cardNumber = true; |
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cardFields.expirationDate = true; |
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cardFields.cvv = true; |
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cardFields.postalCode = true; |
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enableSubmit(); |
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} else { |
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cardFields.postalCode = false; |
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squareCardElementIsComplete = false; |
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disableSubmit(); |
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} |
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} ); |
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|
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return card; |
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} |
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|
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/** |
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* Enable the submit button for the form. |
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*/ |
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function enableSubmit() { |
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if ( running > 0 ) { |
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return; |
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} |
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|
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thisForm.classList.add( 'frm_loading_form' ); |
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frmFrontForm.removeSubmitLoading( jQuery( thisForm ), 'enable', 0 ); |
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|
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// Trigger custom event for other scripts to hook into |
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const event = new CustomEvent( 'frmSquareLiteEnableSubmit', { |
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detail: { form: thisForm } |
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} ); |
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document.dispatchEvent( event ); |
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} |
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|
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/** |
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* Disable submit button for a target form. |
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* |
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* @param {Element} form |
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* @return {void} |
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*/ |
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function disableSubmit( form ) { |
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jQuery( form ).find( 'input[type="submit"],input[type="button"],button[type="submit"]' ).not( '.frm_prev_page' ).attr( 'disabled', 'disabled' ); |
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|
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// Trigger custom event for other scripts to hook into |
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const event = new CustomEvent( 'frmSquareLiteDisableSubmit', { |
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detail: { form } |
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} ); |
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document.dispatchEvent( event ); |
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} |
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|
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async function createPayment( event, token, verificationToken ) { |
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const tokenInput = document.createElement( 'input' ); |
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tokenInput.type = 'hidden'; |
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tokenInput.value = token; |
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tokenInput.setAttribute( 'name', 'square-token' ); |
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|
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const verificationInput = document.createElement( 'input' ); |
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verificationInput.type = 'hidden'; |
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verificationInput.value = verificationToken; |
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verificationInput.setAttribute( 'name', 'square-verification-token' ); |
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|
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// Use the thisForm variable that we set earlier |
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if ( thisForm ) { |
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thisForm.append( tokenInput ); |
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thisForm.append( verificationInput ); |
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|
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if ( typeof frmFrontForm.submitFormManual === 'function' ) { |
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frmFrontForm.submitFormManual( event, thisForm ); |
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} else { |
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// Fallback if submitFormManual is not available |
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thisForm.submit(); |
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} |
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} |
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} |
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|
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async function tokenize( paymentMethod ) { |
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const tokenResult = await paymentMethod.tokenize(); |
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|
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if ( tokenResult.status === 'OK' ) { |
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return tokenResult.token; |
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} |
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|
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let errorMessage = `Tokenization failed with status: ${ tokenResult.status }`; |
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if ( tokenResult.errors ) { |
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errorMessage += ` and errors: ${ JSON.stringify( tokenResult.errors ) }`; |
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} |
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|
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throw new Error( errorMessage ); |
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} |
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|
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// Required in SCA Mandated Regions: Learn more at https://developer.squareup.com/docs/sca-overview |
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async function verifyBuyer( payments, token ) { |
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const formData = new FormData( thisForm ); |
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formData.append( 'action', 'frm_verify_buyer' ); |
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formData.append( 'nonce', frmSquareVars.nonce ); |
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|
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// Remove a few fields so form validation does not incorrectly trigger. |
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formData.delete( 'frm_action' ); |
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formData.delete( 'form_key' ); |
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formData.delete( 'item_key' ); |
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|
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const response = await fetch( frmSquareVars.ajax, { |
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method: 'POST', |
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body: formData |
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} ); |
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|
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if ( ! response.ok ) { |
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throw new Error( 'Failed to verify buyer' ); |
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} |
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|
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const verificationData = await response.json(); |
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if ( ! verificationData.success ) { |
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throw new Error( verificationData.data ); |
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} |
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|
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if ( buyerTokens[ verificationData.data.hash ] ) { |
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// Avoid a second verify buyer request if the verification data has not changed. |
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return buyerTokens[ verificationData.data.hash ]; |
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} |
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|
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const { verificationDetails } = verificationData.data; |
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const verificationResults = await payments.verifyBuyer( token, verificationDetails ); |
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|
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buyerTokens[ verificationData.data.hash ] = verificationResults.token; |
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|
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return verificationResults.token; |
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} |
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|
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/** |
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* Display an error message in the payment form. |
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* |
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* @param {string} errorMessage |
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* @return {void} |
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*/ |
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function displayPaymentFailure( errorMessage ) { |
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if ( ! thisForm ) { |
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return; |
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} |
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|
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const statusContainer = thisForm.querySelector( '.frm-card-errors' ); |
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if ( statusContainer ) { |
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statusContainer.textContent = errorMessage; |
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} |
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} |
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|
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async function squareInit() { |
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// Find the form containing the Square payment element |
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const cardContainer = document.querySelector( '.frm-card-element' ); |
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if ( cardContainer ) { |
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thisForm = cardContainer.closest( 'form' ); |
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if ( thisForm ) { |
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// Initially disable the submit button until card is valid |
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disableSubmit( thisForm ); |
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|
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// Add event listener for form submission |
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thisForm.addEventListener( 'submit', function( event ) { |
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event.preventDefault(); |
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event.stopPropagation(); |
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|
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if ( ! squareCardElementIsComplete ) { |
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const statusContainer = thisForm.querySelector( '.frm-card-errors' ); |
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if ( statusContainer ) { |
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statusContainer.textContent = 'Please complete all card details before submitting.'; |
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} |
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} else { |
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handlePaymentMethodSubmission( event, cardGlobal ); |
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} |
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|
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return false; |
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} ); |
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} |
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} |
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|
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let payments; |
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try { |
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// Square requires HTTPS to work. |
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payments = window.Square.payments( appId, locationId ); |
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} catch ( e ) { |
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const statusContainer = document.querySelector( '.frm-card-errors' ); |
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statusContainer.classList.add( 'missing-credentials', 'frm_error' ); |
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statusContainer.style.visibility = 'visible'; |
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statusContainer.textContent = e.message; |
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return; |
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} |
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|
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let card; |
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try { |
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card = await initializeCard( payments ); |
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} catch ( e ) { |
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console.error( 'Initializing Card failed', e ); |
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return; |
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} |
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|
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cardGlobal = card; |
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|
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/** |
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* @param {Object} $form |
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* @return {boolean} false if there are errors. |
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*/ |
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function validateFormSubmit( $form ) { |
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const errors = frmFrontForm.validateFormSubmit( $form ); |
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const keys = Object.keys( errors ); |
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|
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if ( 1 === keys.length && errors[ keys[ 0 ] ] === '' ) { |
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// Pop the empty error that gets added by invisible recaptcha. |
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keys.pop(); |
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} |
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|
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return 0 === keys.length; |
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} |
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|
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async function handlePaymentMethodSubmission( event, card ) { |
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try { |
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thisForm.classList.add( 'frm_js_validate' ); |
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|
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if ( ! validateFormSubmit( thisForm ) ) { |
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return; |
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} |
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|
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// Increment running counter and disable the submit button |
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running++; |
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if ( thisForm ) { |
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disableSubmit( thisForm ); |
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} |
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|
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const token = await tokenize( card ); |
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const verificationToken = await verifyBuyer( payments, token ); |
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await createPayment( event, token, verificationToken ); |
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|
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// Decrement running counter after successful payment |
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running--; |
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if ( running === 0 && thisForm ) { |
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enableSubmit(); |
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} |
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} catch ( e ) { |
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// Decrement running counter and re-enable submit if appropriate |
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running--; |
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if ( running === 0 && thisForm && squareCardElementIsComplete ) { |
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enableSubmit(); |
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} |
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displayPaymentFailure( e.message ); |
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} |
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} |
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} |
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|
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document.addEventListener( 'DOMContentLoaded', async function() { |
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if ( ! window.Square ) { |
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console.error( 'Square.js failed to load properly' ); |
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return; |
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} |
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|
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squareInit(); |
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|
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jQuery( document ).on( 'frmPageChanged', function() { |
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squareInit(); |
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} ); |
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} ); |
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}() ); |
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|
