When a HIT has been accepted, this script scrolls the mturk workspace to the top of the window. When a HIT is being previewed, this script scrolls the 'Accept HIT' button to the top of the window, unless there is a CAPTCHA. Whenever a HIT is previewed or accepted, this script sets the iframe height equal to the browser's viewport height to ensure proper scrolling and gives focus to the iframe.
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// ==UserScript==
// @name mmmturkeybacon Scroll To Workspace
// @version 3.06
// @description When a HIT has been accepted, this script scrolls the mturk workspace to the top of the window. When a HIT is being previewed, this script scrolls the 'Accept HIT' button to the top of the window, unless there is a CAPTCHA. Whenever a HIT is previewed or accepted, this script sets the iframe height equal to the browser's viewport height to ensure proper scrolling and gives focus to the iframe.
// @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*
// @require https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js
// @grant GM_log
// ==/UserScript==
$(document).ready(function ()
{
var is_a_HIT = document.evaluate("//input[@type='hidden' and @name='isAccepted']", document, null, XPathResult.BOOLEAN_TYPE, null).booleanValue;
if (is_a_HIT == true)
{
var captcha = document.evaluate("//input[@name='userCaptchaResponse']", document, null, XPathResult.BOOLEAN_TYPE, null).booleanValue;
if (captcha == false)
{
var workspace;
var iframe = document.getElementsByTagName('iframe')[0];
var hit_wrapper = document.evaluate("//div[@id='hit-wrapper']", document, null, XPathResult.FIRST_ORDERED_NODE_TYPE, null).singleNodeValue;
if (iframe)
{
iframe.focus();
$(window).load(function(){iframe.focus();});
workspace = iframe;
}
else if (hit_wrapper)
{
workspace = hit_wrapper;
}
var isAccepted = document.evaluate("//input[@type='hidden' and @name='isAccepted' and @value='true']", document, null, XPathResult.BOOLEAN_TYPE, null).booleanValue;
if (workspace && isAccepted == true)
{ // HIT accepted
var styles = window.getComputedStyle(workspace);
var padding = parseFloat(styles.paddingLeft) + parseFloat(styles.paddingRight);
var percent = 100*((window.innerHeight-padding)/window.innerHeight);
workspace.style.minHeight = percent+'vh';
workspace.scrollIntoView();
//if (window.chrome)
//{
// /* This solves the problem of chrome scrolling to the last position it
// * remembers. However, if a page is loaded that chrome doesn't remember
// * a position for this will snap back to the top of the workspace the
// * first time the user scrolls, which is not an ideal solution and why
// * this is commented out.
// * A timeout of 0 works, but it is jarring and looks buggy.
// */
// $(window).load(function(){window.onscroll = function(){ window.onscroll=null; setTimeout( function(){workspace.scrollIntoView();}, 500 ); }});
//}
}
else if (workspace && isAccepted == false)
{ // previewing HIT
var timer = document.evaluate("//span[@id='theTime' and @class='title_orange_text' and @style='text-align: right;']", document, null, XPathResult.FIRST_ORDERED_NODE_TYPE, null).singleNodeValue;
var diff_y = parseFloat(workspace.getBoundingClientRect().top) - parseFloat(timer.getBoundingClientRect().top);
var styles = window.getComputedStyle(workspace);
var padding = parseFloat(styles.paddingLeft) + parseFloat(styles.paddingRight);
var percent = 100*((window.innerHeight-padding-diff_y)/window.innerHeight);
workspace.style.minHeight = percent+'vh';
//$('input[name="/accept"][src="/media/accept_hit.gif"][type="image"]').eq(0).closest('td')[0].scrollIntoView();
timer.scrollIntoView();
//if (window.chrome)
//{
// $(window).load(window.onscroll = function(){ window.onscroll=null; setTimeout( function(){timer.scrollIntoView();}, 500);});
//}
}
}
}
});