I have been having an issue with updating some JS for use in the Next-Gen version of Knack, the main hurdle is using the Knack.showSpinner() function, this works fine in Classic but i am unable to find the corresponding function in the Next-Gen version that uses React. I have a lot of experience with various programming languages but not so much with JavaScript so i really just need to know what to use to replace this function!
Hi @Dale2
The code below does two things:
1.It defines how the spinner looks
2.It tells the app to show the spinner when a form is submitted (form:submit), and hides it automatically after 3 seconds.
Highlight and copy the entire block of code below:
Knack.ready().then(function () {
// 1. Define the function to SHOW the spinner
window.showCustomSpinner = function (message) {
// Hide any existing spinner first
window.hideCustomSpinner();
// Create the visual overlay
var overlay = document.createElement('div');
overlay.id = 'kn-custom-spinner-overlay';
overlay.style.cssText = [
'position:fixed', 'top:0', 'left:0',
'width:100%', 'height:100%',
'background:rgba(255,255,255,0.85)',
'display:flex', 'flex-direction:column',
'align-items:center', 'justify-content:center',
'z-index:9999', 'transition:opacity 0.2s ease'
].join(';');
// Add the spinning circle (SVG)
var svgHTML = '<svg aria-hidden="true" class="animate-spin" style="width:32px;height:32px;fill:#4b5563;color:#e5e7eb;" viewBox="0 0 100 101" fill="none" xmlns="http://www.w3.org/2000/svg">'
+ '<path d="M100 50.5908C100 78.2051 77.6142 100.591 50 100.591C22.3858 100.591 0 78.2051 0 50.5908C0 22.9766 22.3858 0.59082 50 0.59082C77.6142 0.59082 100 22.9766 100 50.5908ZM9.08144 50.5908C9.08144 73.1895 27.4013 91.5094 50 91.5094C72.5987 91.5094 90.9186 73.1895 90.9186 50.5908C90.9186 27.9921 72.5987 9.67226 50 9.67226C27.4013 9.67226 9.08144 27.9921 9.08144 50.5908Z" fill="currentColor"/>'
+ '<path d="M93.9676 39.0409C96.393 38.4038 97.8624 35.9116 97.0079 33.5539C95.2932 28.8227 92.871 24.3692 89.8167 20.348C85.8452 15.1192 80.8826 10.7238 75.2124 7.41289C69.5422 4.10194 63.2754 1.94025 56.7698 1.05124C51.7666 0.367541 46.6976 0.446843 41.7345 1.27873C39.2613 1.69328 37.813 4.19778 38.4501 6.62326C39.0873 9.04874 41.5694 10.4717 44.0505 10.1071C47.8511 9.54855 51.7191 9.52689 55.5402 10.0491C60.8642 10.7766 65.9928 12.5457 70.6331 15.2552C75.2735 17.9648 79.3347 21.5619 82.5849 25.841C84.9175 28.9121 86.7997 32.2913 88.1811 35.8758C89.083 38.2158 91.5421 39.6781 93.9676 39.0409Z" fill="currentFill"/>'
+ '</svg>';
// Add the optional text message
var labelHTML = message
? '<p style="margin-top:16px;font-size:14px;color:#4b5563;font-weight:500;font-family:inherit;">' + message + '</p>'
: '';
overlay.innerHTML = svgHTML + labelHTML;
document.body.appendChild(overlay );
};
// 2. Define the function to HIDE the spinner
window.hideCustomSpinner = function () {
var overlay = document.getElementById('kn-custom-spinner-overlay');
if (overlay) {
overlay.style.opacity = '0';
setTimeout(function () { overlay.remove(); }, 200);
}
};
// 3. Trigger the spinner when ANY form is submitted
Knack.on('form:submit', function (event) {
// Show the spinner and display a message
window.showCustomSpinner('Saving your information...');
// Hide the spinner after 3 seconds (3000 milliseconds)
// Note: If you are running custom API code, you would put window.hideCustomSpinner()
// at the end of your API call instead of using this timer.
setTimeout(function () {
window.hideCustomSpinner();
}, 3000);
});
});
Go to your Live App and find any page that has a form on it (like an “Add Project” or “Edit Client” page). Fill out the form and click the submit button.
You should see a full-page overlay like the screenshot above with a spinning circle and the text “Saving your information…”. It will automatically disappear after 3 seconds.
I hope this helps,
Kara
Thanks for sharing a solution to this @Kara
Fantastic, thank you for your assistance Kara