FxaForm.init = function()

in media/js/base/fxa-form.es6.js [298:345]
41 lines of code
6 McCabe index (conditional complexity)

FxaForm.init = function (skipAttr) {
    if (!FxaForm.isSupported()) {
        return false;
    }

    FxaForm.skipAttribution = typeof skipAttr === 'boolean' ? skipAttr : true;

    formElem = document.getElementById('fxa-email-form');
    entrypointInput = document.getElementById('fxa-email-form-entrypoint');
    entrypointExp = document.getElementById(
        'fxa-email-form-entrypoint-experiment'
    );
    entrypointVar = document.getElementById(
        'fxa-email-form-entrypoint-variation'
    );
    utmCampaign = document.getElementById('fxa-email-form-utm-campaign');
    utmContent = document.getElementById('fxa-email-form-utm-content');
    utmSource = document.getElementById('fxa-email-form-utm-source');
    utmTerm = document.getElementById('fxa-email-form-utm-term');

    return new window.Promise((resolve, reject) => {
        if (formElem) {
            if (!FxaForm.skipAttribution) {
                // Pass through UTM params from the URL to the form.
                const utms = FxaForm.getUTMParams();
                Object.keys(utms).forEach((i) => {
                    // check if input is available
                    if (formElem.querySelector('[name="' + i + '"]')) {
                        formElem.querySelector('[name="' + i + '"]').value =
                            utms[i];
                    } else {
                        // create input if one is not present
                        const input = FxaForm.createInput(i, utms[i]);
                        formElem.appendChild(input);
                    }
                });

                FxaForm.fetchTokens().then(() => {
                    resolve();
                });
            } else {
                resolve();
            }
        } else {
            reject();
        }
    });
};