mmmturkeybacon Floating Timers

Adds total time elapsed, time remaining, and task time elapsed to a floating display. The task timer keeps track of page load times to more accurately reflect the amount of required to finish a HIT.

You will need to install an extension such as Tampermonkey, Greasemonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Userscripts to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install a user script manager extension to install this script.

(I already have a user script manager, let me install it!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(I already have a user style manager, let me install it!)

// ==UserScript==
// @name        mmmturkeybacon Floating Timers
// @version     1.11
// @description Adds total time elapsed, time remaining, and task time elapsed to a floating display. The task timer keeps track of page load times to more accurately reflect the amount of required to finish a HIT.
// @author      mmmturkeybacon
// @namespace   http://userscripts.org/users/523367
// @match       https://*.mturk.com/mturk/preview*
// @match       https://*.mturk.com/mturk/accept*
// @match       https://*.mturk.com/mturk/continue*
// @match       https://*.mturk.com/mturk/submit*
// @match       https://*.mturk.com/mturk/return*
// @match       https://www.mturk.com/mturk/takequalificationtest
// @require     https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js
// @grant       unsafeWindow
// ==/UserScript==

// Given:
// serverTimestamp (i.e. date of now)
// totalSeconds (i.e. time alloted)
// endTime (i.e. expiration time)
// theTime (i.e. time elapsed)
// Calculate:
// start_time = endTime - totalSeconds
// seconds_remaining = totalSeconds - theTime;

/* Set task_start_time as soon as possible, because page load time affects how long it takes to complete
 * a task. */
var task_start_time = localStorage.getItem('mtb_page_unload_time');
if (task_start_time == null)
{
    task_start_time = (new Date()).getTime();
}


$(document).ready(function()
//$(window).load(function()
{

    var isAccepted = document.evaluate("//input[@type='hidden' and @name='isAccepted' and @value='true']", document, null, XPathResult.BOOLEAN_TYPE, null).booleanValue;

    if (isAccepted == true || document.location.href.indexOf('takequalificationtest') > -1)
    {
        var totalSeconds = unsafeWindow.totalSeconds;

        var timer_holder = document.createElement("DIV");
        timer_holder.style.cssText = "position: fixed; top: 0px; left: 0px; z-index: 20; background-color: black;";
        timer_holder.align = "right";

        var timer_holder_innerHTML = '<div><span id="elapsed_timer" title="Time elapsed since HIT accepted." style="font-size: 14px; color: white; font-family: verdana,arial,sans-serif; text-align: right;"></span></div>';
        timer_holder_innerHTML += '<div><span id="remaining_timer" title="Time remaining." style="font-size: 14px; color: white; font-family: verdana,arial,sans-serif; text-align: right;"></span></div>';
        timer_holder_innerHTML += '<div><span id="task_timer" title="Time elapsed since last HIT completed. Click to reset." style="font-size: 14px; color: white; font-family: verdana,arial,sans-serif; text-align: right;"></span></div>';
  
        timer_holder.innerHTML = timer_holder_innerHTML;
    
        document.body.insertBefore(timer_holder, document.body.firstChild);
    
        var theTime = document.getElementById("theTime");
        var elapsed_timer = document.getElementById("elapsed_timer");
        var remaining_timer = document.getElementById("remaining_timer");
        var task_timer = document.getElementById("task_timer");
        
        //var MutationObserver = window.MutationObserver || window.WebKitMutationObserver || window.MozMutationObserver;
        var observer = new MutationObserver(function(mutations)
        {
            elapsed_timer.innerHTML = theTime.innerHTML;
    
            var task_seconds_elapsed = Math.floor(((new Date()).getTime() - task_start_time)/1000);
            task_timer.innerHTML = format_time(task_seconds_elapsed);
    
            if (totalSeconds)
            {
                var seconds_remaining = totalSeconds - parse_theTime(theTime.innerHTML);
                remaining_timer.innerHTML = format_time(seconds_remaining);
            }
            else
            {
                remaining_timer.innerHTML = "error";
            }
    
        });
        var options = {
          attributes: false,
          characterData: true,
          childList: true,
          subtree: true
        };
    
        observer.observe(theTime, options);

        task_timer.onclick = function(){task_start_time = (new Date()).getTime(); if(typeof(Storage)!=="undefined"){localStorage.setItem('mtb_page_unload_time', task_start_time);}};
    
        window.addEventListener('beforeunload', function(){if(typeof(Storage)!=="undefined"){localStorage.setItem('mtb_page_unload_time', (new Date()).getTime());}});
    }

});

function parse_theTime(theTime)
{
    var dd = 0;
    var hh = 0;
    var mm = 0;
    var ss = 0;
    var seconds = 0;

    var time_split = theTime.split(/:| /);

    if (time_split.length == 4)
    {
        hh = parseInt(time_split[1], 10);
        mm = parseInt(time_split[2], 10);
        ss = parseInt(time_split[3], 10);
    }
    else if (time_split.length == 6)
    {
        dd = parseInt(time_split[1], 10);
        hh = parseInt(time_split[3], 10);
        mm = parseInt(time_split[4], 10);
        ss = parseInt(time_split[5], 10);
    }

    seconds = (dd*24*60*60) + (hh*60*60) + (mm*60) + ss;
    return seconds;
}


function format_time(time_in_seconds)
{
    var time_str = "error";

    if (time_in_seconds >= 0)
    {
        // time formatting code modified from http://userscripts.org/scripts/show/169154
        var days  = Math.floor((time_in_seconds/(60*60*24)));
        var hours = Math.floor((time_in_seconds/(60*60)) % 24);
        var minutes  = Math.floor((time_in_seconds/60) % 60);
        var seconds  = time_in_seconds % 60;

        time_str = (days == 0 ? '' : days + (days > 1 ? ' days ' : ' day '));

        if (hours   < 10) {hours   = "0"+hours;}
        if (minutes < 10) {minutes = "0"+minutes;}
        if (seconds < 10) {seconds = "0"+seconds;}

        time_str += hours + ':' +minutes + ':' + seconds;
    }

    return time_str;
}