Ornikar Keyboard shortcuts

gistfile1.txt

// ==UserScript==
// @name         Ornikar Keyboard Shortcuts
// @namespace    http://tampermonkey.net/
// @version      0.1
// @description  Add ABCD shortcuts to Ornikar questions
// @author       Patrick Browne
// @match        https://www.ornikar.com/*
// @grant        none
// ==/UserScript==

(function() {
    'use strict';

    var authorizedLetters = 'abcd';

    var click = function (node) {
        var ev = new MouseEvent('click', {
            'view': window,
            'bubbles': true,
            'cancelable': true
        });
        node.dispatchEvent(ev);
    };

    var clearAll = function (ev) {
        ev.preventDefault();
        var selected = [].slice.call(document.querySelectorAll('.btn-series.selected'));
        for (var i = 0; i < selected.length; i++) {
            click(selected[i]);
        }
    };

    document.addEventListener('keyup', function (ev) {
        var letter = String.fromCharCode(ev.which).toLowerCase();
        if (authorizedLetters.indexOf(letter) > -1) {
            var node = document.querySelector('#answer-' + letter);
            if (node) { click(node); }
        }

        if (ev.which == 8) {
            clearAll(ev);
        }
    });

     console.info('Tampermonkey Ornikar Keyboard Shortcuts is active');
})();