zulip/static/js/portico/email_log.js

$(function () {
    // This code will be executed when the user visits /emails in
    // development mode and email_log.html is rendered.
    $('#toggle').change(function () {
        if ($('.email-text').css('display') === 'none') {
            $(".email-text").each(function () {
                $(this).css("display", "block");
            });
            $(".email-html").each(function () {
                $(this).css("display", "none");
            });
        } else {
            $(".email-text").each(function () {
                $(this).css("display", "none");
            });
            $(".email-html").each(function () {
                $(this).css("display", "block");
            });
        }
    });
    $('input[type=radio][name=forward]').on('change', function () {
        if ($(this).val() === "enabled") {
            $("#forward_address_sections").show();
        } else {
            $("#forward_address_sections").hide();
        }
    });
    $("#save_smptp_details").on("click", function () {
        const address = $('input[name=forward]:checked').val() === "enabled" ? $("#address").val() : "";
        const csrf_token = $('input[name="csrfmiddlewaretoken"]').attr('value');
        const data = {forward_address: address, csrfmiddlewaretoken: csrf_token};

        channel.post({
            url: "/emails/",
            data: data,
            success: function () {
                $("#smtp_form_status").show();
                setTimeout(function () {
                    $("#smtp_form_status").hide();
                }, 3000);
            },
        });
    });
});