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mmmturkeybacon Scroll To Workspace

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.

La data de 25-04-2015. Vezi ultima versiune.

// ==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);});
                //}
            }
        }
    }
});