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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.

目前為 2015-04-08 提交的版本，檢視 最新版本。

  1. // ==UserScript==
  2. // @name        mmmturkeybacon Scroll To Workspace
  3. // @version     3.05
  4. // @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.
  5. // @author      mmmturkeybacon
  6. // @namespace   http://userscripts.org/users/523367
  7. // @match       https://*.mturk.com/mturk/preview*
  8. // @match       https://*.mturk.com/mturk/accept*
  9. // @match       https://*.mturk.com/mturk/continue*
  10. // @match       https://*.mturk.com/mturk/submit*
  11. // @match       https://*.mturk.com/mturk/return*
  12. // @require     https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js
  13. // @grant       GM_log
  14. // ==/UserScript==
  15.  
  16. $(document).ready(function ()
  17. {   
  18.     var is_a_HIT = document.evaluate("//input[@type='hidden' and @name='isAccepted']", document, null, XPathResult.BOOLEAN_TYPE, null).booleanValue;
  19.     if (is_a_HIT == true)
  20.     {
  21.         var workspace;
  22.         var iframe = document.getElementsByTagName('iframe')[0];
  23.         var hit_wrapper = document.evaluate("//div [@id='hit-wrapper']", document, null, XPathResult.FIRST_ORDERED_NODE_TYPE, null).singleNodeValue;
  24.         var isAccepted = document.evaluate("//input[@type='hidden' and @name='isAccepted' and @value='true']", document, null, XPathResult.BOOLEAN_TYPE, null).booleanValue;
  25.         var captcha = document.evaluate("//input[@name='userCaptchaResponse']", document, null, XPathResult.BOOLEAN_TYPE, null).booleanValue;
  26.  
  27.         if (iframe)
  28.         {
  29.             iframe.height = window.innerHeight;
  30.             $(window).load(function(){iframe.focus();});
  31.             workspace = iframe;
  32.         }
  33.         else if (hit_wrapper)
  34.         {
  35.             /* Changing the hit_wrapper height doesn't work correctly because
  36.              * this script runs before all images are are loaded. This makes it
  37.              * impossible to know what the final hit_wrapper height will be and
  38.              * setting the hit_wrapper height before images are loaded may 
  39.              * result in a hit_wrapper that is too small.
  40.              * Padding is added to the end of the page to ensure proper scrolling.
  41.              */
  42.             var hit_wrapper_ypos = hit_wrapper.getBoundingClientRect().top;
  43.             var pad = hit_wrapper_ypos+window.innerHeight-$(document).height();
  44.             if (pad > 0)
  45.             {
  46.                 var pad_div = document.createElement("div");
  47.                 pad_div.style.height = pad;
  48.                 document.body.appendChild(pad_div);
  49.             }
  50.             workspace = hit_wrapper;
  51.         }
  52.         
  53.         // If isAccepted is true then there is almost certainly not a CAPTCHA but I'm not positive and I can't test for that
  54.         // case, so it's better to be safe than sorry.
  55.         if (captcha == false)
  56.         {
  57.             if (isAccepted == true && workspace)
  58.             { // HIT accepted
  59.                 workspace.scrollIntoView();
  60.                 
  61.                 //if (window.chrome)
  62.                 //{
  63.                 //    /* This solves the problem of chrome scrolling to the last position it
  64.                 //     * remembers. However, if a page is loaded that chrome doesn't remember
  65.                 //     * a position for this will snap back to the top of the workspace the
  66.                 //     * first time the user scrolls, which is not an ideal solution and why
  67.                 //     * this is commented out.
  68.                 //     * A timeout of 0 works, but it is jarring and looks buggy.
  69.                 //     */
  70.                 //    $(window).load(function(){window.onscroll = function(){ window.onscroll=null; setTimeout( function(){workspace.scrollIntoView();}, 500 ); }});
  71.                 //}
  72.             }
  73.             else
  74.             { // previewing HIT
  75.                 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;
  76.                 timer.scrollIntoView();
  77.                 //if (window.chrome)
  78.                 //{
  79.                 //    $(window).load(window.onscroll = function(){ window.onscroll=null; setTimeout( function(){timer.scrollIntoView();}, 500);});
  80.                 //}
  81.             }
  82.         }
  83.     }
  84. });