reset all to defaults button

reset_button.js

require([
    'jquery',
    'underscore',
    'splunkjs/mvc',
    'splunkjs/mvc/simplexml/ready!'
], function(
    $,
    _,
    mvc
) {
    function submit_and_update_url() {
        submitted_tokens.set(unsubmitted_tokens.toJSON());
        mvc.Components.get('url').saveOnlyWithPrefix('form\\.', unsubmitted_tokens.toJSON(), {
            replaceState: false
        });
    }

    var unsubmitted_tokens = mvc.Components.get('default');
    var submitted_tokens   = mvc.Components.get('submitted');
    
    var reset_button = $('<button id="reset_button" type="button" style="margin-bottom: 20px">Reset All to Defaults</button>');

    $(".dashboard-body .fieldset:eq(0)").after(reset_button);

    reset_button.on("click", function(e) {
        var inputs = _(splunkjs.mvc.Components.getInstances()).filter(function(obj) { return obj.el && obj.el.className.indexOf("input") > -1; })

        _(inputs).each(function(input) {
            var defaults = {};

            if(input.settings.get("type") !== "time") {
                var token = input.settings.get("token");
                var default_value = input.options.default;

                defaults["form." + token] = default_value;
            }
            else {
                var prefix = input.settings.get("token");

                var tokens = ["earliest", "latest"];

                if(prefix) {
                    tokens = _(tokens).map(function(v) { return prefix + "." + v; });
                }

                defaults[tokens[0]] = input.options.default.earliest_time;
                defaults[tokens[1]] = input.options.default.latest_time || "now";
            }

            _(defaults).each(function(v, k) {
                unsubmitted_tokens.set(k, v);
            });

            submit_and_update_url();
        });
    });
});