- Final · Prioridad: 1 · Condición: todo el sitio.
*
* Consentimiento (ConsentMagic + modo de consentimiento de Google):
* - Se toma como señal de consentimiento de analítica que exista la cookie _ga,
* que Google Analytics solo crea cuando el usuario la acepta.
* - Sin consentimiento: no se guarda nada en el navegador. Solo se usan los datos
* de la página en la que está el formulario (UTMs de la URL y referrer).
* - Con consentimiento: se guarda en sessionStorage la entrada de la visita
* (página, referrer y UTMs) para no perderla al navegar, y se añade el ID de GA4.
* - El formulario se envía siempre, aunque falte algún dato.
*/
(function () {
var KEY = 'sg_attr_v1';
var IDS = ['utm_source', 'utm_medium', 'utm_campaign', 'entry_referrer', 'landing_page', 'ga_client_id'];
function cookie(name) {
var m = document.cookie.match('(?:^|; )' + name + '=([^;]*)');
return m ? decodeURIComponent(m[1]) : '';
}
// _ga tiene la forma GA1.1.1234567890.1729100000: el ID de cliente son los dos últimos bloques.
function gaClientId() {
var p = cookie('_ga').split('.');
return p.length >= 4 ? p[p.length - 2] + '.' + p[p.length - 1] : '';
}
function hayConsentimiento() {
return cookie('_ga') !== '';
}
// Referrer solo si viene de fuera de la web. Las páginas internas no cuentan como origen.
function referrerExterno() {
var r = document.referrer;
if (!r) return '';
try {
return new URL(r).hostname === location.hostname ? '' : r;
} catch (e) {
return '';
}
}
function datosDeEstaPagina() {
var q = new URLSearchParams(location.search);
var ref = document.referrer;
var interno = false;
try {
var u = new URL(ref);
// Navegación interna: otra página de la web. Si es la misma página (recarga del banner), no cuenta.
interno = !!ref && u.hostname === location.hostname && u.pathname !== location.pathname;
} catch (e) {}
return {
utm_source: q.get('utm_source') || '',
utm_medium: q.get('utm_medium') || '',
utm_campaign: q.get('utm_campaign') || '',
entry_referrer: referrerExterno(),
// Si se llega desde otra página de la web y no hay consentimiento, la entrada real no se conoce.
landing_page: interno ? 'sin dato (navegación interna sin consentimiento)' : location.pathname
};
}
function leerGuardado() {
try { return JSON.parse(sessionStorage.getItem(KEY) || 'null'); } catch (e) { return null; }
}
function guardar(d) {
try { sessionStorage.setItem(KEY, JSON.stringify(d)); } catch (e) {}
}
function datos() {
var actual = datosDeEstaPagina();
if (!hayConsentimiento()) return actual;
var g = leerGuardado();
if (!g) {
// Primera página con consentimiento: es la entrada de la visita.
g = actual;
if (g.landing_page.indexOf('sin dato') === 0) g.landing_page = location.pathname;
guardar(g);
} else if (actual.utm_source) {
// Si llega una campaña nueva en mitad de la visita, se actualizan solo las UTMs.
g.utm_source = actual.utm_source;
g.utm_medium = actual.utm_medium;
g.utm_campaign = actual.utm_campaign;
guardar(g);
}
return g;
}
function rellenar(raiz) {
var d = datos();
d.ga_client_id = gaClientId();
var formularios = (raiz || document).querySelectorAll('form.elementor-form');
for (var i = 0; i < formularios.length; i++) {
for (var j = 0; j < IDS.length; j++) {
var campo = formularios[i].querySelector('[name="form_fields[' + IDS[j] + ']"]');
if (campo) campo.value = d[IDS[j]] || '';
}
}
}
// Al cargar la página.
if (document.readyState === 'loading') {
document.addEventListener('DOMContentLoaded', function () { rellenar(); });
} else {
rellenar();
}
// Justo antes de enviar (fase de captura, antes que Elementor), por si el usuario
// ha aceptado las cookies después de cargar la página.
document.addEventListener('submit', function (e) {
if (e.target && e.target.classList && e.target.classList.contains('elementor-form')) {
rellenar(e.target.parentNode || document);
}
}, true);
// Al entrar en un formulario (clic o tabulador en cualquier campo) y a los 3 segundos de cargar.
document.addEventListener('focusin', function (e) {
var f = e.target && e.target.closest ? e.target.closest('form.elementor-form') : null;
if (f) rellenar(f.parentNode || document);
});
setTimeout(function () { rellenar(); }, 3000);
// Formularios dentro de popups de Elementor.
if (window.jQuery) {
window.jQuery(document).on('elementor/popup/show', function () { rellenar(); });
}
})();
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