Usage
This function runs automatically, so it is not called manually. Is this incorrect?
Additional Notes
This function handles the timing of individual form fields as well as overall forms.
It also handles the Google Analytics event tracking for form submission funnels including starting forms, submit attempt, invalid, spam, mail failure, and successful submissions.
Source File
Located in /assets/js/modules/forms.js on line 3.
No Hooks
This function does not have any filters or actions available. Request one?Note: This function contains 9 to-do comments.
JavaScript
nebula.cf7Functions = async function(){
if ( !jQuery('.wpcf7-form').length ){
return false;
}
jQuery('.wpcf7-form p:empty').remove(); //Remove empty <p> tags within CF7 forms
let formStarted = {};
//Replace submit input with a button so a spinner icon can be used instead of the CF7 spin gif (unless it has the class "no-button")
jQuery('.wpcf7-form input[type=submit]').each(function(){
if ( !jQuery(this).hasClass('no-button') ){
jQuery(this).replaceWith('<button id="submit" type="submit" class="' + nebula.sanitize(jQuery(this).attr('class')) + '">' + nebula.sanitize(jQuery(this).val()) + '</button>'); //Sanitized to prevent XSS
}
});
//Observe CF7 Forms when they scroll into the viewport
try {
//Observe the entries that are identified and added later (below)
let cf7Observer = new IntersectionObserver(function(entries){
entries.forEach(function(entry){
if ( entry.intersectionRatio > 0 ){
let thisEvent = {
event_name: 'cf7_form_impression',
event_category: 'CF7 Form',
event_action: 'Impression',
event_label: jQuery(entry.target).closest('.wpcf7').attr('id') || jQuery(entry.target).attr('id'), //@todo "Nebula" 0: Remove after July 2023
form_id: jQuery(entry.target).closest('.wpcf7').attr('id') || jQuery(entry.target).attr('id'),
non_interaction: true
};
nebula.dom.document.trigger('nebula_event', thisEvent);
if ( typeof gaEventObject === 'function' ){ //If the page is loaded pre-scrolled this may not be available for the very first intersection
gtag('event', thisEvent.event_name, nebula.gaEventObject(thisEvent));
}
window.dataLayer.push(Object.assign(thisEvent, {'event': 'nebula-cf7-impression'}));
cf7Observer.unobserve(entry.target); //Stop observing the element
}
});
}, {
rootMargin: '0px',
threshold: 0.10
});
//Create the entries and add them to the observer
jQuery('.wpcf7-form').each(function(){
cf7Observer.observe(jQuery(this)[0]); //Observe the element
});
} catch(error){
nebula.help('CF7 Impression Observer: ' + error.message, '/functions/cf7Functions/', true);
}
//Re-init forms inside Bootstrap modals (to enable AJAX submission) when needed
nebula.dom.document.on('shown.bs.modal', function(e){
if ( typeof wpcf7.initForm === 'function' && jQuery(e.target).find('.wpcf7-form').length && !jQuery(e.target).find('.ajax-loader').length ){ //If initForm function exists, and a form is inside the modal, and if it has not yet been initialized (The initForm function adds the ".ajax-loader" span)
wpcf7.initForm(jQuery(e.target).find('.wpcf7-form'));
}
});
//Form starts and field focuses
nebula.dom.document.on('focus', '.wpcf7-form input, .wpcf7-form select, .wpcf7-form button, .wpcf7-form textarea', function(e){
let formID = jQuery(this).closest('div.wpcf7').attr('id'); //This wraps the form element
let thisField = e.target.name || jQuery(this).closest('.form-group').find('label').text() || e.target.id || 'Unknown';
let fieldInfo = '';
if ( jQuery(this).attr('type') === 'checkbox' || jQuery(this).attr('type') === 'radio' ){
fieldInfo = jQuery(this).attr('value');
}
if ( !jQuery(this).hasClass('.ignore-form') && !jQuery(this).find('.ignore-form').length && !jQuery(this).parents('.ignore-form').length ){
let thisEvent = {
event: e,
event_category: 'CF7 Form',
event_action: 'Started Form (Focus)',
event_label: formID, //@todo "Nebula" 0: Remove after July 2023
form_id: formID, //Actual ID (not Unit Tag)
form_field: thisField,
form_field_info: fieldInfo
};
thisEvent.form_flow = nebula.updateFormFlow(thisEvent.form_id, thisEvent.form_field, thisEvent.form_field_info);
//Form starts
if ( typeof formStarted[formID] === 'undefined' || !formStarted[formID] ){
thisEvent.event_name = 'form_start';
thisEvent.event_label = 'Began filling out form ID: ' + thisEvent.form_id + ' (' + thisEvent.form_field + ')';
nebula.dom.document.trigger('nebula_event', thisEvent);
gtag('event', thisEvent.event_name, nebula.gaEventObject(thisEvent));
nebula.crm('identify', {'form_contacted': 'CF7 (' + thisEvent.form_id + ') Started'}, false);
nebula.crm('event', 'Contact Form (' + thisEvent.form_id + ') Started (' + thisEvent.form_field + ')');
formStarted[formID] = true;
}
//Track each individual field focuses
if ( !jQuery(this).is('button') ){
thisEvent.event_name = 'form_field_focus';
thisEvent.event_action = 'Individual Field Focused';
thisEvent.event_label = 'Focus into ' + thisEvent.form_field + ' (Form ID: ' + thisEvent.form_id + ')';
nebula.dom.document.trigger('nebula_event', thisEvent);
gtag('event', thisEvent.event_name, nebula.gaEventObject(thisEvent));
window.dataLayer.push(Object.assign(thisEvent, {'event': 'nebula-form-started'}));
}
}
nebula.timer(formID, 'start', thisField);
//Individual form field timings
if ( nebula.timings && typeof nebula.timings[formID] !== 'undefined' && typeof nebula.timings[formID].lap[nebula.timings[formID].laps-1] !== 'undefined' ){
let labelText = '';
if ( jQuery(this).parent('.label') ){
labelText = jQuery(this).parent('.label').text();
} else if ( jQuery('label[for="' + jQuery(this).attr('id') + '"]').length ){
labelText = jQuery('label[for="' + jQuery(this).attr('id') + '"]').text();
} else if ( jQuery(this).attr('placeholder').length ){
labelText = ' "' + jQuery(this).attr('placeholder') + '"';
}
gtag('event', 'timing_complete', {
name: nebula.timings[formID].lap[nebula.timings[formID].laps-1].name + labelText + ' (Form ID: ' + formID + ')',
value: Math.round(nebula.timings[formID].lap[nebula.timings[formID].laps-1].duration),
event_category: 'CF7 Form',
event_label: 'Amount of time on this input field (until next focus or submit).',
});
}
});
//CF7 Submit "Attempts" (submissions of any CF7 form on the HTML-side: before REST API)
//This metric should always match the "Submit (Processing)" metric or else something is wrong!
nebula.dom.document.on('wpcf7beforesubmit', function(e){
try {
jQuery(e.target).find('button#submit').addClass('active');
let thisEvent = {
event: e,
event_name: 'cf7_form_submit_attempt',
event_category: 'CF7 Form',
event_action: 'Submit (Attempt)',
event_label: e.detail.unitTag, //@todo "Nebula" 0: Remove after July 2023
form_id: e.detail.contactFormId, //CF7 Form ID
post_id: e.detail.containerPostId, //Post/Page ID
unit_tag: e.detail.unitTag, //CF7 Unit Tag
};
//If timing data exists
if ( nebula.timings && typeof nebula.timings[e.detail.unitTag] !== 'undefined' ){
thisEvent.form_time = nebula.timer(e.detail.unitTag, 'lap', 'wpcf7-submit-attempt');
thisEvent.inputs = nebula.timings[e.detail.unitTag].laps + ' inputs';
}
thisEvent.form_timing = nebula.millisecondsToString(thisEvent.form_time) + 'ms (' + thisEvent.inputs + ')';
thisEvent.event_label = 'HTML submission attempt for form ID: ' + thisEvent.unit_tag;
gtag('set', 'user_properties', {
contact_method: 'CF7 Form (Attempt)'
});
nebula.dom.document.trigger('nebula_event', thisEvent);
gtag('event', thisEvent.event_name, nebula.gaEventObject(thisEvent)); //This event is required for the notable form metric!
window.dataLayer.push(Object.assign(thisEvent, {'event': 'nebula-form-submit-attempt'}));
nebula.fbq('track', 'Lead', {content_name: 'Form Submit (Attempt)'});
nebula.clarity('set', thisEvent.event_category, thisEvent.event_action);
} catch {
gtag('event', 'exception', {
description: '(JS) CF7 Catch (cf7 HTML form submit): ' + error,
fatal: false
});
nebula.usage('CF7 (HTML) Catch: ' + error);
}
});
//CF7 Submit "Processing" (CF7 AJAX response after any submit attempt). This triggers after the other submit triggers.
//This metric should always match the "Submit (Attempt)" metric or else something is wrong!
nebula.dom.document.on('wpcf7submit', function(e){
try {
let thisEvent = {
event: e,
event_name: 'cf7_form_submit_processing',
event_category: 'CF7 Form',
event_action: 'Submit (Processing)',
event_label: e.detail.unitTag, //@todo "Nebula" 0: Remove after July 2023
form_id: e.detail.contactFormId, //CF7 Form ID
post_id: e.detail.containerPostId, //Post/Page ID
unit_tag: e.detail.unitTag, //CF7 Unit Tag
};
thisEvent.event_label = 'Submission processing for form ID: ' + thisEvent.unitTag;
thisEvent.form_timing = nebula.millisecondsToString(thisEvent.formTime) + 'ms (' + thisEvent.inputs + ')'; //This is a backup for the HTML form listener
nebula.crmForm(thisEvent.unitTag); //nebula.crmForm() here because it triggers after all others. No nebula.crm() here so it doesn't overwrite the other (more valuable) data.
gtag('set', 'user_properties', {
contact_method: 'CF7 Form (Processing)'
});
nebula.dom.document.trigger('nebula_event', thisEvent);
gtag('event', thisEvent.event_name, nebula.gaEventObject(thisEvent)); //This event is required for the notable form metric!
window.dataLayer.push(Object.assign(thisEvent, {'event': 'nebula-form-submit-processing'}));
nebula.fbq('track', 'Lead', {content_name: 'Form Submit (Processing)'});
nebula.clarity('track', 'Lead', {content_name: 'Form Submit (Processing)'});
jQuery('#' + e.detail.unitTag).find('button#submit').removeClass('active');
jQuery('.invalid-feedback').addClass('hidden'); //Reset all of the "live" feedback to let CF7 handle its feedback
jQuery('#cf7-privacy-acceptance').trigger('change'); //Until CF7 has a native invalid indicator for the privacy acceptance checkbox, force the Nebula validator here
} catch(error){
gtag('event', 'exception', {
description: '(JS) CF7 Catch (wpcf7submit): ' + error,
fatal: false
});
nebula.usage('CF7 Catch: ' + error);
}
});
//CF7 Invalid (CF7 AJAX response after invalid form)
nebula.dom.document.on('wpcf7invalid', function(e){
try {
let thisEvent = {
event: e,
event_name: 'cf7_form_submit_invalid',
event_category: 'CF7 Form',
event_action: 'Submit (CF7 Invalid)',
event_label: e.detail.unitTag, //@todo "Nebula" 0: Remove after July 2023
description: '(JS) Invalid form submission for form ID ' + e.detail.unitTag,
form_id: e.detail.contactFormId, //CF7 Form ID
post_id: e.detail.containerPostId, //Post/Page ID
unit_tag: e.detail.unitTag, //CF7 Unit Tag
fatal: false
};
thisEvent.form_flow = nebula.updateFormFlow(thisEvent.unitTag, '[Invalid]');
//If timing data exists
if ( nebula.timings && typeof nebula.timings[e.detail.unitTag] !== 'undefined' ){
thisEvent.formTime = nebula.timer(e.detail.unitTag, 'lap', 'wpcf7-submit-invalid');
thisEvent.inputs = nebula.timings[e.detail.unitTag].laps + ' inputs';
}
thisEvent.event_label = 'Form validation errors occurred on form ID: ' + thisEvent.unitTag;
thisEvent.form_timing = nebula.millisecondsToString(thisEvent.formTime) + 'ms (' + thisEvent.inputs + ')';
//Apply Bootstrap validation classes to invalid fields
jQuery('.wpcf7-not-valid').each(function(){
jQuery(this).addClass('is-invalid');
});
gtag('set', 'user_properties', {
contact_method: 'CF7 Form (Invalid)'
});
nebula.dom.document.trigger('nebula_event', thisEvent);
gtag('event', thisEvent.event_name, nebula.gaEventObject(thisEvent));
gtag('event', 'exception', nebula.gaEventObject(thisEvent));
window.dataLayer.push(Object.assign(thisEvent, {'event': 'nebula-form-invalid'}));
nebula.scrollTo(jQuery('.wpcf7-not-valid').first(), 35); //Scroll to the first invalid input
nebula.crm('identify', {'form_contacted': 'CF7 (' + thisEvent.unitTag + ') Invalid'}, false);
nebula.crm('event', 'Contact Form (' + thisEvent.unitTag + ') Invalid');
} catch(error){
gtag('event', 'exception', {
description: '(JS) CF7 Catch (wpcf7invalid): ' + error,
fatal: false
});
nebula.usage('CF7 Catch: ' + error);
}
});
//General HTML5 validation errors
jQuery('.wpcf7-form input').on('invalid', function(e){ //Would it be more useful to capture all inputs (rather than just CF7)? How would we categorize this in GA?
nebula.debounce(function(){
let thisEvent = {
event: e,
event_name: 'cf7_form_submit_invalid',
event_category: 'CF7 Form',
event_action: 'Submit (HTML5 Invalid)',
event_label: 'General HTML5 validation error', //@todo "Nebula" 0: Remove after July 2023 - change to description
};
nebula.dom.document.trigger('nebula_event', thisEvent);
gtag('event', thisEvent.event_name, nebula.gaEventObject(thisEvent));
window.dataLayer.push(Object.assign(thisEvent, {'event': 'nebula-form-invalid'}));
nebula.crm('identify', {'form_contacted': 'CF7 HTML5 Validation Error'});
}, 50, 'invalid form');
});
//CF7 Spam (CF7 AJAX response after spam detection)
nebula.dom.document.on('wpcf7spam', function(e){
try {
let formInputs = 'Unknown';
if ( nebula.timings[e.detail.unitTag] && nebula.timings[e.detail.unitTag].laps ){
formInputs = nebula.timings[e.detail.unitTag].laps + ' inputs';
}
let thisEvent = {
event: e,
event_name: 'cf7_form_submit_spam',
event_category: 'CF7 Form',
event_action: 'Submit (Spam)',
event_label: e.detail.unitTag, //@todo "Nebula" 0: Remove after July 2023
form_id: e.detail.contactFormId, //CF7 Form ID
post_id: e.detail.containerPostId, //Post/Page ID
unit_tag: e.detail.unitTag, //CF7 Unit Tag
description: '(JS) Spam form submission for form ID ' + e.detail.unitTag,
form_time: nebula.timer(e.detail.unitTag, 'end'),
form_inputs: formInputs,
fatal: true //Fatal because the user was unable to submit
};
thisEvent.form_flow = nebula.updateFormFlow(thisEvent.unitTag, '[Spam]');
thisEvent.event_label = 'Form submission failed spam tests on form ID: ' + thisEvent.unitTag;
thisEvent.form_timing = nebula.millisecondsToString(thisEvent.formTime) + 'ms (' + thisEvent.inputs + ')';
gtag('set', 'user_properties', {
contact_method: 'CF7 Form (Spam)'
});
nebula.dom.document.trigger('nebula_event', thisEvent);
gtag('event', thisEvent.event_name, nebula.gaEventObject(thisEvent));
gtag('event', 'exception', nebula.gaEventObject(thisEvent));
window.dataLayer.push(Object.assign(thisEvent, {'event': 'nebula-form-spam'}));
nebula.crm('identify', {'form_contacted': 'CF7 (' + thisEvent.unitTag + ') Submit Spam'}, false);
nebula.crm('event', 'Contact Form (' + thisEvent.unitTag + ') Spam');
} catch(error){
gtag('event', 'exception', {
description: '(JS) CF7 Catch (wpcf7spam): ' + error,
fatal: false
});
nebula.usage('CF7 Catch: ' + error);
}
});
//CF7 Mail Send Failure (CF7 AJAX response after mail failure)
nebula.dom.document.on('wpcf7mailfailed', function(e){
try {
let formInputs = 'Unknown';
if ( nebula.timings[e.detail.unitTag] && nebula.timings[e.detail.unitTag].laps ){
formInputs = nebula.timings[e.detail.unitTag].laps + ' inputs';
}
let thisEvent = {
event: e,
event_name: 'cf7_form_submit_failed',
event_category: 'CF7 Form',
event_action: 'Submit (Mail Failed)',
event_label: e.detail.unitTag, //@todo "Nebula" 0: Remove after July 2023
form_id: e.detail.contactFormId, //CF7 Form ID
post_id: e.detail.containerPostId, //Post/Page ID
unit_tag: e.detail.unitTag, //CF7 Unit Tag
description: '(JS) Mail failed to send for form ID ' + e.detail.unitTag,
form_time: nebula.timer(e.detail.unitTag, 'end'),
form_inputs: formInputs,
fatal: true //Fatal because the user was unable to submit
};
thisEvent.form_flow = nebula.updateFormFlow(thisEvent.unitTag, '[Failed]');
thisEvent.event_label = 'Form submission email send failed for form ID: ' + thisEvent.unitTag;
thisEvent.form_timing = nebula.millisecondsToString(thisEvent.formTime) + 'ms (' + thisEvent.inputs + ')';
gtag('set', 'user_properties', {
contact_method: 'CF7 Form (Failed)'
});
nebula.dom.document.trigger('nebula_event', thisEvent);
gtag('event', thisEvent.event_name, nebula.gaEventObject(thisEvent));
gtag('event', 'exception', nebula.gaEventObject(thisEvent));
window.dataLayer.push(Object.assign(thisEvent, {'event': 'nebula-form-failed'}));
nebula.crm('identify', {'form_contacted': 'CF7 (' + thisEvent.unitTag + ') Submit Failed'}, false);
nebula.crm('event', 'Contact Form (' + thisEvent.unitTag + ') Failed');
} catch(error){
gtag('event', 'exception', {
description: '(JS) CF7 Catch (wpcf7mailfailed): ' + error,
fatal: false
});
nebula.usage('CF7 Catch: ' + error);
}
});
//CF7 Mail Sent Success (CF7 AJAX response after submit success)
nebula.dom.document.on('wpcf7mailsent', function(e){
try {
formStarted[e.detail.unitTag] = false; //Reset abandonment tracker for this form.
let formInputs = 'Unknown';
if ( nebula.timings[e.detail.unitTag] && nebula.timings[e.detail.unitTag].laps ){
formInputs = nebula.timings[e.detail.unitTag].laps + ' inputs';
}
//These event may want to correspond to the GA4 event name "generate_lead" and use "value" and "currency" as parameters: https://support.google.com/analytics/answer/9267735 (or consider multiple events?)
let thisEvent = {
event: e,
event_name: 'cf7_form_submit_success',
event_category: 'CF7 Form',
event_action: 'Submit (Success)',
event_label: e.detail.unitTag, //@todo "Nebula" 0: Remove after July 2023
form_id: e.detail.contactFormId, //CF7 Form ID
post_id: e.detail.containerPostId, //Post/Page ID
unit_tag: e.detail.unitTag, //CF7 Unit Tag ("f" is CF7 form ID, "p" is WP post ID, and "o" is the count if there are multiple per page)
form_time: nebula.timer(e.detail.unitTag, 'end'),
form_inputs: formInputs,
};
thisEvent.form_flow = nebula.updateFormFlow(thisEvent.unitTag, '[Success]');
thisEvent.form_timing = nebula.millisecondsToString(thisEvent.form_time) + 'ms (' + thisEvent.form_inputs + ')';
thisEvent.event_label = 'Form ID: ' + thisEvent.unitTag;
gtag('set', 'user_properties', {
contact_method: 'CF7 Form'
});
nebula.dom.document.trigger('nebula_event', thisEvent);
gtag('event', thisEvent.event_name, nebula.gaEventObject(thisEvent));
gtag('event', 'timing_complete', {
name: 'Form Completion (ID: ' + thisEvent.unitTag + ')',
value: Math.round(thisEvent.formTime),
event_category: thisEvent.event_category,
event_label: 'Initial form focus until valid submit',
});
window.dataLayer.push(Object.assign(thisEvent, {'event': 'nebula-form-submit-success'}));
nebula.fbq('track', 'Lead', {content_name: 'Form Submit (Success)'});
nebula.clarity('set', thisEvent.event_category, thisEvent.event_action);
nebula.crm('identify', {'form_contacted': 'CF7 (' + thisEvent.unitTag + ') Submit Success'}, false);
nebula.crm('event', 'Contact Form (' + thisEvent.unitTag + ') Submit Success');
//Clear localstorage on submit success on non-persistent forms
if ( !jQuery('#' + e.detail.unitTag).hasClass('nebula-persistent') && !jQuery('#' + e.detail.unitTag).parents('.nebula-persistent').length ){
jQuery('#' + e.detail.unitTag + ' .wpcf7-textarea, #' + e.detail.unitTag + ' .wpcf7-text').each(function(){
jQuery(this).trigger('keyup'); //Clear validation
localStorage.removeItem('cf7_' + jQuery(this).attr('name'));
});
}
jQuery('#' + e.detail.unitTag).find('button#submit').removeClass('active');
jQuery('#' + e.detail.unitTag).find('.is-valid, .is-invalid').removeClass('is-valid is-invalid'); //Clear all validation classes
} catch(error){
gtag('event', 'exception', {
description: '(JS) CF7 Catch (wpcf7mailsent): ' + error,
fatal: false
});
nebula.usage('CF7 Catch: ' + error);
}
});
};
Override
To override or disable this JavaScript function, simply redeclare it with the exact same function name. Remember: Some functionality is conditionally loaded via dynamic imports, so if your function is not overriding properly, try listening for a DOM event (described below).
JavaScript
For non-module import functions:
nebula.cf7Functions = function(){
//Write your own code here, leave it blank, or return false.
}
For dynamically imported module function overrides:
jQuery(window).on('load', function(){
nebula.cf7Functions = function(){
//Write your own code here, leave it blank, or return false.
}
});
Custom Nebula DOM events do also exist, so you could also try the following if the Window Load listener does not work:
jQuery(document).on('nebula_module_loaded', function(module){
//Note that the module variable is also available to know which module specifically was imported
if ( typeof nebula.cf7Functions === 'function' ){
nebula.cf7Functions = function(){
//Write your own code here, leave it blank, or return false.
}
}
});