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const emailForm = document.querySelector('.pn-template__email-wrapper'); const userEmailInput = document.querySelector('.pn-template__email'); const emailError = document.querySelector('.pn-template__error'); const userSubmit = document.querySelector('#submit-button'); const userFakeSubmit = document.querySelector('#fake-button'); const errorIcon = document.querySelector('#error-icon'); const checkEmail = function (inputData) { const regex = /^(([^<>()\[\]\\.,;:\s@"]+(\.[^<>()\[\]\\.,;:\s@"]+)*)|(".+"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$/; return regex.test(inputData); }; userEmailInput.addEventListener('input', () => { emailForm.classList.remove('pn-template__email-wrapper--bad'); emailError.innerText = ''; errorIcon.style.display = 'none'; if (checkEmail(userEmailInput.value)) { userFakeSubmit.hidden = true; userSubmit.hidden = false; } else { userSubmit.hidden = true; userFakeSubmit.hidden = false; } }); userFakeSubmit.addEventListener('click', () => { if (! checkEmail(userEmailInput.value)) { emailForm.classList.add('pn-template__email-wrapper--bad'); errorIcon.style.display = 'block'; userEmailInput.focus(); if ('' === userEmailInput.value) { emailError.innerText = 'Please enter a valid email address'; } else { emailError.innerText = 'Please enter a valid email address'; } } else { emailForm.classList.remove('pn-template__email-wrapper--bad'); emailError.innerText = ''; errorIcon.style.display = 'none'; } }); // Listener to receive the message from the frontend. window.addEventListener('message', (e) => { const formSection = document.querySelector('.pn-template__state--first'); const thanksSection = document.querySelector('.pn-template__state--second'); const emailError = document.querySelector('.pn-template__error'); const firstButton = document.querySelector('#first-close-button'); const secondButton = document.querySelector('#second-close-button'); // Verify that the message is coming from Piano. if ('undefined' !== typeof e.data.piano) { // Get the object with the result. const result = e.data.piano; if (result.success) { // Subscription succeeded. // Hide the form section. if (firstButton) { firstButton.style.display = 'none'; } formSection.style.display = 'none'; // Show the thanks section. thanksSection.style.display = 'block'; } else { // Subscription failed. // Display error. emailError.innerText = result.message; } } }, false);