// ==UserScript==
// @name           Mturk ID Copy/Paste
// @author         Swole_hamster
// @version        1.1
// @namespace      http://www.mturkforum.com
// @homepage       http://mturkforum.com/showthread.php?4443-Worker-ID-Copy-Paste&p=57029
// @description    For Amazon Mechanical Turk (Mturk). Places an unobtrusive button on survey pages which provides quick access to copy your mTurk worker ID. Edited by Tjololo12: Hover highlight for easy copy-paste or drag and drop. Does not show on mturk pages. Edited by Swole_hamster to add more domains.
// @grant GM_setValue
// @grant GM_getValue
// @grant GM_registerMenuCommand
// @include        https://www.mturk.com/mturk/dashboard
// @include	       http://*.qualtrics.com/*
// @include	       https://*.qualtrics.com/*
// @include            http://*surveygizmo.com/*
// @include            https://*surveygizmo.com/*
// @include            https://docs.google.com/forms/*
// @include        https://*.surveymonkey.com/*
// @include        https://*soscisurvey.de/*
// @include        http://*.dartmouth.edu/*
// @include        https://*.dartmouth.edu/*
// @include        https://*.vennliapp.com/*
// @include        http://*.ualberta.ca/*
// @include        https://*.unipark.de/*
// @include        http://*.unipark.de/*
// @downloadURL none
// ==/UserScript==

if (!this.GM_getValue || (this.GM_getValue.toString && this.GM_getValue.toString().indexOf("not supported")>-1)) {
    this.GM_getValue=function (key,def) {
        return localStorage[key] || def;
        };
    this.GM_setValue=function (key,value) {
        return localStorage[key]=value;
        };
}

workerID = GM_getValue("workerID");
if(!workerID || workerID == "") {
	if (window.location.href == "https://www.mturk.com/mturk/dashboard") {
		workerIDNode = document.evaluate("//span[@class='orange_text_right']",document,null,XPathResult.UNORDERED_NODE_SNAPSHOT_TYPE,null);
		for (i=0; i<workerIDNode.snapshotLength; i++) {
			nd = workerIDNode.snapshotItem(i);
			idstring = nd.innerHTML;
			workerID = idstring.split(': ')[1];
			GM_setValue("workerID",workerID);
		}
	} else {
		workerID="";
		GM_setValue("workerID","");
	}
} else {
    if (!/https?:\/\/www.mturk.com\/mturk\/*/.test(window.location.href)) {
		idDiv = document.createElement('div');
		idDiv.id = "workerIDDiv";
 		idInner = "<input type='text' onmouseover='javascript:this.focus();this.select() ;' onmouseout='javascript:this.blur();' value='" + workerID + "' style='position:fixed;border:none;top:25px;z-index:10000;right:5px;padding:1px 3px;background:#33CC00;font-size:10px;color:white;' readonly/>";
		idDiv.innerHTML = idInner;
		document.body.insertBefore(idDiv,document.body.firstChild);
	}
}