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Text Highlight and Seek

Automatically highlight user-defined text with Seek function (2017-12-15)

目前为 2017-12-16 提交的版本，查看 最新版本。

  1. // ==UserScript==
  2. // @name          Text Highlight and Seek
  3. // @author        erosman and Jefferson "jscher2000" Scher
  4. // @namespace     JeffersonScher
  5. // @version       2.3.0
  6. // @description   Automatically highlight user-defined text with Seek function (2017-12-15)
  7. // @include       https://greasyfork.org/*
  8. // @include       https://openuserjs.org/*
  9. // @include       http*://www.jeffersonscher.com/*
  10. // @grant         GM_registerMenuCommand
  11. // @grant         GM_setValue
  12. // @grant         GM.setValue
  13. // @grant         GM_getValue
  14. // @grant         GM.getValue
  15. // @grant         GM_getResourceURL
  16. // @grant         GM.getResourceUrl
  17. // @copyright     Copyright 2017 Jefferson Scher. Portions created by erosman.
  18. // @license       BSD-3-clause
  19. // @resource      mycon http://www.jeffersonscher.com/gm/src/gfrk-THS-ver230.png
  20. // ==/UserScript==
  21. var script_about = "https://greasyfork.org/scripts/13007-text-highlight-and-seek";
  22. /* --------- Note ---------
  23.   TO INCLUDE SITES (only Greasy Fork and OpenUserJS are initially included):
  24.  
  25.   Go to Add-ons - User Scripts (Ctrl+Shift+a/Cmd+Shift+a on Firefox Windows/Mac)
  26.   Click on the Script's Option
  27.   Under User Settings Tab, Add Included/Excluded Pages that you want the script to run on
  28.   Click OK
  29.  
  30.   Note from erosman: If you find that another script clashes with this script, set Text Highlight and Seek to Execute first.
  31.   Go to Add-ons - User Scripts ('Ctrl+ Shift + a' on Firefox)
  32.   Right Click on the Script
  33.   On the context menu click: Execute first
  34.  
  35.   On Add-ons - User Scripts, you can also Click on the Execution Order (top Right) and
  36.   change the execution order so that Text Highlight and Seek runs before those scripts that clashes with it.
  37. */
  38. var hlframe, hlobjDefault, kwhieditstyle, hljson, hlobj, hlkeys, kwold, hlold, hlbtnvis, hlprecode, hlnextset, hbtndisp;
  39. var GM4 = (typeof GM_getValue === "undefined") ? true : false;
  40.  
  41. async function THS_init(){
  42.   if (!GM4){
  43.     hlframe = GM_getValue("hlframe", ""); // get iframe pref
  44.   } else {
  45.     hlframe = await GM.getValue("hlframe", "");
  46.   }
  47.   if (hlframe == ""){
  48.     hlframe = "none";
  49.     if (!GM4){
  50.       GM_setValue("hlframe", hlframe);
  51.     } else {
  52.       await GM.setValue("hlframe", hlframe);
  53.     }
  54.   }
  55.   
  56.   if ((window.self !== window.top) && (hlframe != "any")) { // framed page
  57.     if (hlframe == "none") return; 
  58.     if (hlframe == "same") {
  59.       console.log(window.self.location.hostname + " vs " + window.top.location.hostname);
  60.     }
  61.   }
  62.  
  63.   // sample keyword+style object to get started
  64.   hlobjDefault = {
  65.     "set100" : {
  66.       keywords : "scripts|script",
  67.       type : "string",
  68.       hlpat : "",
  69.       textcolor : "rgb(0,0,0)",
  70.       backcolor : "rgb(255,255,128)",
  71.       fontweight : "inherit",
  72.       custom : "",
  73.       enabled : "true",
  74.       visible : "true",
  75.       updated : ""
  76.     },
  77.     "set099" : {
  78.       keywords : "site",
  79.       type : "word",
  80.       hlpat : "",
  81.       textcolor : "rgb(0,0,0)",
  82.       backcolor : "rgb(255,192,255)",
  83.       fontweight : "inherit",
  84.       custom : "",
  85.       enabled : "true",
  86.       visible : "true",
  87.       updated : ""
  88.     },
  89.     "set098" : {
  90.       keywords : "^October \\d{1,2}",
  91.       type : "regex",
  92.       hlpat : "",
  93.       textcolor : "rgb(0,0,0)",
  94.       backcolor : "rgb(192,255,255)",
  95.       fontweight : "inherit",
  96.       custom : "",
  97.       enabled : "true",
  98.       visible : "true",
  99.       updated : ""
  100.     }
  101.   };
  102.   kwhieditstyle = ["rgb(0,0,255)","rgb(255,255,0)","inherit",""];
  103.  
  104.   // read pref storage: keyword-style sets
  105.   if (!GM4){
  106.     hljson = GM_getValue("kwstyles");
  107.   } else {
  108.     hljson = await GM.getValue("kwstyles");
  109.   }
  110.   if (!hljson || hljson.length == 0){
  111.     hlobj = hlobjDefault;
  112.     // check for legacy preferences
  113.     if (!GM4){
  114.       kwold = GM_getValue("keywords");
  115.     } else {
  116.       kwold = await GM.getValue("keywords");
  117.     }
  118.     if (kwold) if(kwold.length > 0) {
  119.       hlobj.set100.keywords = kwold.split(',').join('|');
  120.     }
  121.     if (!GM4){
  122.       hlold = GM_getValue("highlightStyle");
  123.     } else {
  124.       hlold = await GM.getValue("highlightStyle");
  125.     }
  126.     if (hlold) if(hlold.length > 0) {
  127.       // really should try to parse this, but for now...
  128.       hlobj.set100.custom = hlold;
  129.     }
  130.     // save starting values
  131.     hljson = JSON.stringify(hlobj);
  132.     if (!GM4){
  133.       GM_setValue("kwstyles", hljson);
  134.     } else {
  135.       await GM.setValue("kwstyles", hljson);
  136.     }
  137.   } else {
  138.     hlobj = JSON.parse(hljson);
  139.   }
  140.   // global keys array
  141.   hlkeys = Object.keys(hlobj);
  142.  
  143.   // read/set other prefs
  144.   if (!GM4){
  145.     hlbtnvis = GM_getValue("hlbtnvis", "");
  146.   } else {
  147.     hlbtnvis = await GM.getValue("hlbtnvis", "");
  148.   }
  149.   if (hlbtnvis == ""){
  150.     hlbtnvis = "on";
  151.     if (!GM4){
  152.       GM_setValue("hlbtnvis", hlbtnvis);
  153.     } else {
  154.       await GM.setValue("hlbtnvis", hlbtnvis);
  155.     }    
  156.   }
  157.  
  158.   if (!GM4){
  159.     hlprecode = GM_getValue("hlprecode", "");
  160.   } else {
  161.     hlprecode = await GM.getValue("hlprecode", "");
  162.   }
  163.   if (hlprecode == ""){
  164.     hlprecode = true;
  165.     if (!GM4){
  166.       GM_setValue("hlprecode", hlprecode);
  167.     } else {
  168.       await GM.setValue("hlprecode", hlprecode);
  169.     }    
  170.   }
  171.  
  172.   if (!GM4){
  173.     hlnextset = GM_getValue("hlnextset", "");
  174.   } else {
  175.     hlnextset = await GM.getValue("hlnextset", "");
  176.   }
  177.   if (hlnextset == ""){
  178.     hlnextset = 101;
  179.     if (!GM4){
  180.       GM_setValue("hlnextset", hlnextset);
  181.     } else {
  182.       await GM.setValue("hlnextset", hlnextset);
  183.     }    
  184.   }
  185.   
  186.   // Inject CSS
  187.   insertCSS(hlkeys);
  188.   // first run
  189.   THmo_doHighlight(document.body,null);
  190.  
  191.   // Add MutationObserver to catch content added dynamically
  192.   var THmo_MutOb = (window.MutationObserver) ? window.MutationObserver : window.WebKitMutationObserver;
  193.   if (THmo_MutOb){
  194.     var THmo_chgMon = new THmo_MutOb(function(mutationSet){
  195.       mutationSet.forEach(function(mutation){
  196.         for (var i=0; i<mutation.addedNodes.length; i++){
  197.           if (mutation.addedNodes[i].nodeType == 1){
  198.             THmo_doHighlight(mutation.addedNodes[i],null);
  199.           }
  200.         }
  201.       });
  202.     });
  203.     // attach chgMon to document.body
  204.     var opts = {childList: true, subtree: true};
  205.     THmo_chgMon.observe(document.body, opts);
  206.   }
  207.  
  208.   // Set up top highlight/seek bar
  209.   var kwhibar = document.createElement("div");
  210.   kwhibar.id = "thdtopbar";
  211.   if (hlbtnvis == "on") var btnchk = " checked=\"checked\"";
  212.   else var btnchk = "";
  213.   if (hlprecode) var btnprecode = " checked=\"checked\"";
  214.   else var btnprecode = "";
  215.   kwhibar.innerHTML = "<form id=\"thdtopform\" onsubmit=\"return false\"><p id=\"thdtopbarhome\"><a href=\"" + script_about + "\" target=\"_blank\" title=\"Go to script install page\">JS</a></p>" +
  216.     "<div id=\"thdtopcurrent\"><p id=\"thdtopkeywords\" title=\"Click to View, Edit, Seek, or Add Keywords\">Click here to manage keyword/highlight sets</p>" +
  217.     "<div id=\"thdtopdrop\" style=\"display:none;\"><div id=\"thdtable\"><table cellspacing=\"0\"><tbody id=\"kwhitbod\"></tbody></table></div><p><button id=\"btnkwhiadd\">Add New Set</button>" +
  218.     "<span style=\"float:right\"><button id=\"btnkwhiexport\">Export Sets</button> <button id=\"btnkwhiimport\">Import Sets</button> <button id=\"thdtopdropclose\">X</button></span></p></div></div>" +
  219.     "<div id=\"thdtopfindbuttons\"><button title=\"First match\" thdaction=\"f\"><b>l</b>&#x25c0;</button> <button title=\"Previous match\" thdaction=\"p\">&#x25c0;</button> <span id=\"thdseekdesc\">Seek</span> <button title=\"Next match\" thdaction=\"n\">&#x25b6;</button> <button title=\"Last match\" thdaction=\"l\">&#x25b6;<b>l</b></button><div id=\"thdseekfail\"></div></div>" +
  220.     "<div id=\"thdtopoptions\"><div>Options</div><ul><li><label title=\"Float a button in the upper right corner of the document to quickly access this panel\"><input type=\"checkbox\" id=\"chkhbtn\"" + btnchk +
  221.     "> Show H button</label></li><li><label title=\"Highlight matches in &lt;pre&gt; and &lt;code&gt; tags\"><input type=\"checkbox\" id=\"chkprecode\"" + btnprecode +
  222.     "> Match in pre/code</label></li><li><label style=\"padding-left:4px\">Framed pages:</label><br><select id=\"hlframeselect\" size=\"3\"><option value=\"none\">No highlighting</option><option value=\"same\">Same site only</option>" +
  223.     "<option value=\"any\">Any site</option></select></li><li><button id=\"btnthsreread\" title=\"Update from and apply stored settings\" disabled>Re-Read Saved Prefs</button></li></ul></div>" +
  224.     "<button class=\"btnkwhiclose\" onclick=\"document.getElementById('thdtopbar').style.display='none';document.getElementById('thdtopspacer').style.display='none';return false;\" style=\"float:right\">X</button></form>" +
  225.     "<style type=\"text/css\">#thdtopbar{position:fixed;top:0;left:0;height:26px;width:100%;padding:0;color:#024;background:#ddd;font-family:sans-serif;font-size:16px;line-height:16px;border-bottom:1px solid #024;z-index:2500;display:none} " +
  226.     "#thdtopbar,#thdtopbar *{box-sizing:content-box;} #thdtopform{display:block;position:relative;float:left;width:100%;margin:0;border:none;} " +
  227.     "#thdtopbarhome,#thdtopcurrent,#thdtopfindbuttons,#thdtopoptions{float:left;top:0;left:0;margin:0;padding:5px 8px 4px;border-right:1px solid #fff;font-size:16px;} " +
  228.     "#thdtopbarhome{width:22px;text-align:center;overflow:hidden;} #thdtopbarhome a{display:block;} #thdtopbarhome a img{display:block;border:none;border-radius:3px;padding:3px;margin:-3px 0 -4px 0;background-color:#fff} " +
  229.     "#thdtopfindbuttons{padding-bottom:1px;position:relative} #thdtopfindbuttons button{margin:-5px 0 -2px 0;width:28px;height:18px;color:#024;background:#f0f0f0;border:1px solid #024;border-radius:4px;padding:1px 3px;} " +
  230.     "#thdtopfindbuttons button:hover{background:#ffa;} #thdseekdesc{cursor:pointer} #thdtopkeywords{margin:0;width:500px;cursor:pointer;} " +
  231.     "#thdseekfail{display:none;position:absolute;top:30px;left:15px;z-index:2001;width:200px;color:#f8f8f8;background:#b00;border-radius:6px;text-align:center;font-size:12px;padding:3px}" +
  232.     "#thdtopkeywords span{display:inline-block;width:100%;overflow:hidden;text-overflow:ellipsis;} #thdtable{max-height:600px;overflow-y:auto;overflow-x:hidden} " +
  233.     "#thdtopdrop{position:absolute;top:26px;left:38px;width:500px;margin:0 -1px 0 -1px;padding:0 8px 8px 8px;background:#ddd;border:1px solid #024;border-top:none;border-radius:0 0 6px 6px;} " +
  234.     "#thdtopdrop table{width:100%;background:#fff;border-top:1px solid #000;border-left:1px solid #000;table-layout:fixed} " +
  235.     "#thdtopdrop td{padding:4px 4px; vertical-align:top;border-right:1px solid #000;border-bottom:1px solid #000;} #thdtopdrop td div{word-wrap:break-word} #thdtopdrop p{margin-top:8px;margin-bottom:0;} " +
  236.     "#thdtopoptions{position:relative;width:160px;height:26px;padding:0 8px;} #thdtopoptions > div{padding:5px 0 4px;} " +
  237.     "#thdtopoptions ul{position:absolute;top:26px;left:0;width:160px;margin:0 -1px 0 -1px;padding:0 8px 8px 8px;background:#ddd;border:1px solid #024;border-top:none;border-radius:0 0 6px 6px;list-style:none;} " +
  238.     "#thdtopoptions li{width:100%;float:left;padding:2px 0;} #thdtopoptions ul{display:none;} #thdtopoptions:hover ul{display: block;border:1px solid #024;border-top:none;} #thdtopoptions li:hover{background:#eee;}" +
  239.     ".btnkwhiclose{float:right;font-size:11px;margin-top:2px;} .thdtype{color:#ccc;float:right;font-size:12px;padding-top:8px;} #thdtopbar label{font-weight:normal;display:inline;margin:0} #hlframeselect{margin:3px 0 3px 4px;border-radius:4px}</style>";
  240.   document.body.appendChild(kwhibar);
  241.   // Attach event handlers
  242.   document.getElementById("thdtopkeywords").addEventListener("click",thddroptoggle,false);
  243.   document.getElementById("kwhitbod").addEventListener("click",kwhiformevent,false);
  244.   document.getElementById("kwhitbod").addEventListener("dblclick",kwhiformevent,false);
  245.   document.getElementById("btnkwhiadd").addEventListener("click",kwhinewset,false);
  246.   document.getElementById("btnkwhiexport").addEventListener("click",kwhiexport,false);
  247.   document.getElementById("btnkwhiimport").addEventListener("click",kwhiimport,false);
  248.   document.getElementById("thdtopfindbuttons").addEventListener("click",thdseek,false);
  249.   document.getElementById("chkhbtn").addEventListener("click",kwhihbtn,false);
  250.   document.getElementById("chkprecode").addEventListener("click",kwhiprecode,false);
  251.   document.getElementById("btnthsreread").addEventListener("click",thsreread,false);
  252.   document.getElementById("thdtopdropclose").addEventListener("click",kwhitopdropclose,false);
  253.   // frame options
  254.   document.getElementById("hlframeselect").addEventListener("change",thsframeselect,false);
  255.   setthsframeopts();
  256.   // Add spacer at top of body
  257.   var divsp = document.createElement("div");
  258.   divsp.id = "thdtopspacer";
  259.   divsp.setAttribute("style","clear:both;display:none");
  260.   divsp.style.height = parseInt(27 - parseInt(window.getComputedStyle(document.body,null).getPropertyValue("margin-top"))) + "px";
  261.   document.body.insertBefore(divsp, document.body.childNodes[0]);
  262.   // Switch JS text to icon
  263.   var JSBTN = document.createElement("img");
  264.   if (!GM4){
  265.     JSBTN.src = GM_getResourceURL("mycon");
  266.   } else { /* asynchronous*/
  267.     JSBTN.src = await GM.getResourceUrl("mycon");
  268.   }
  269.   document.querySelector("#thdtopbar a").textContent = "";
  270.   document.querySelector("#thdtopbar a").appendChild(JSBTN);
  271.   // Add menu item
  272.   if (!GM4) GM_registerMenuCommand("Show Text Highlight and Seek Bar - View, Edit, Add Keywords and Styles", editKW);
  273.   // Inject H button
  274.   if (hlbtnvis == "off") hbtndisp = ' style="display:none"';
  275.   else hbtndisp = '';
  276.   var dNew = document.createElement("div");
  277.   dNew.innerHTML = '<button id="btnshowkwhi"' + hbtndisp + '>H</button><style type="text/css">#btnshowkwhi{position:fixed;top:4px;right:4px;opacity:0.2;' +
  278.     'color:#000;background-color:#ffa;font-weight:bold;font-size:12px;border:1px solid #ccc;border-radius:4px;padding:2px 3px;z-index:1999;min-width:22px;min-height:22px}' +
  279.     '#btnshowkwhi:hover{opacity:0.8}@media print{#btnshowkwhi{display:none;}}</style>';
  280.   document.body.appendChild(dNew);
  281.   document.getElementById("btnshowkwhi").addEventListener("click",editKW,false);
  282.  
  283.   // Set up add/edit form
  284.   var kwhied = document.createElement("div");
  285.   kwhied.id = "kwhiedit";
  286.   kwhied.innerHTML = "<form onsubmit=\"return false;\"><p style=\"margin-top:0\"><b>Edit/Add Keywords/Highlighting</b>" +
  287.     "<span class=\"btnkwhiclose\"><button id=\"btnkwhimax\" title=\"Maximize dialog size\">^</button>&nbsp;&nbsp;" +
  288.     "<button onclick=\"document.getElementById('kwhiedit').style.display='none'; return false;\" title=\"Close dialog\">X</button></span>" +
  289.     "</p><p>List longer forms of a word first to match both in full. Example: \"children|child\" will highlight both, but \"child|children\" " +
  290.     "will only highlight child, it won't expand the selection to children.</p>" +
  291.     "<table cellspacing=\"0\" style=\"table-layout:fixed\"><tbody><tr kwhiset=\"new\"><td style=\"width:calc(100% - 464px)\">" +
  292.     "<p contenteditable=\"true\" style=\"border:1px dotted #000;word-wrap:break-word;display:block!important\" class=\"\">placeholder</p>" +
  293.     "<p style=\"margin-top:2em\">Match type: <select id=\"kwhipattype\"><option value=\"string\" selected>Anywhere in a word</option>" +
  294.     "<option value=\"word\">\"Whole\" words only</option><option value=\"regex\">Regular Expression (advanced)</option></select></p></td>" +
  295.     "<td style=\"width:416px\" id=\"stylecontrols\"><p><span>Text color:</span> R:<input id=\"txtr\" type=\"number\" min=\"0\" max=\"255\" step=\"1\" " +
  296.     "style=\"width:4em\" value=\"0\"> G:<input id=\"txtg\" type=\"number\" min=\"0\" max=\"255\" step=\"1\" " +
  297.     "style=\"width:4em\" value=\"0\"> B:<input id=\"txtb\" type=\"number\" min=\"0\" max=\"255\" step=\"1\" " +
  298.     "style=\"width:4em\" value=\"0\"> <button id=\"btntxtreset\">Reset</button></p><p><span>Background:</span> R:<input id=\"bkgr\" " +
  299.     "type=\"number\" min=\"0\" max=\"255\" step=\"1\" style=\"width:4em\" value=\"255\"> G:<input id=\"bkgg\" " +
  300.     "type=\"number\" min=\"0\" max=\"255\" step=\"1\" style=\"width:4em\" value=\"255\"> B:<input id=\"bkgb\" " +
  301.     "type=\"number\" min=\"0\" max=\"255\" step=\"1\" style=\"width:4em\" value=\"128\"> <button id=\"btnbkgreset\">Reset</button>" +
  302.     "</p><p><span>Font-weight:</span> <select id=\"fwsel\"><option value=\"inherit\" selected>inherit</option>" +
  303.     "<option value=\"bold\"><b>bold</b></option><option value=\"normal\">not bold</option></select></p><p><span>Custom:</span> <input type=\"text\" " +
  304.     "id=\"kwhicustom\" style=\"width:55%\"> <button id=\"kwhicustomapply\">Apply</button></p></td></tr></tbody></table>" +
  305.     "<p><button id=\"btnkwhisave\">Save Changes</button> <button id=\"btnkwhicancel\">Discard Changes</button> " +
  306.     "<button id=\"btnkwhiremove\">Hide Set</button> <button id=\"btnkwhirevert\" disabled>Revert Last Keyword Edit</button></p></form><style type=\"text/css\">" +
  307.     "#kwhiedit{position:fixed;top:1px;left:150px;width:800px;height:400px;border:1px solid #000;border-radius:6px;padding:1em;color:#000;" +
  308.     "background:#fafafa;z-index:2501;display:none} #kwhiedit table{width:100%;background:#fff;border-top:1px solid #000;" +
  309.     "border-left:1px solid #000;} #kwhiedit td{padding:0 12px; vertical-align:top;border-right:1px solid #000;border-bottom:1px solid #000;}" +
  310.     "#kwhiedit td p{margin-top:12px;} #stylecontrols>p>span{display:inline-block;width:6.5em;}</style><style type=\"text/css\" id=\"kwhiedittemp\"></style></div>";
  311.   document.body.appendChild(kwhied);
  312.   // Attach event handlers
  313.   document.getElementById("btnkwhisave").addEventListener("click",kwhisavechg,false);
  314.   document.getElementById("btnkwhicancel").addEventListener("click",kwhicancel,false);
  315.   document.getElementById("btnkwhiremove").addEventListener("click",kwhiremove,false);
  316.   document.getElementById("btnkwhirevert").addEventListener("click",kwhirevert,false);
  317.   document.getElementById("stylecontrols").addEventListener("input",updatestyle,false);
  318.   document.getElementById("btntxtreset").addEventListener("click",kwhicolorreset,false);
  319.   document.getElementById("btnbkgreset").addEventListener("click",kwhicolorreset,false);
  320.   document.getElementById("fwsel").addEventListener("change",kwhifwchg,false);
  321.   document.getElementById("kwhicustomapply").addEventListener("click",kwhicustom,false);
  322.   document.getElementById("btnkwhimax").addEventListener("click",kwhimaxrestore,false);
  323.  
  324.   // Context menu options -- do not replace any existing menu!
  325.   if (!document.body.hasAttribute("contextmenu") && "contextMenu" in document.documentElement){
  326.     var cmenu = document.createElement("menu");
  327.     cmenu.id = "THDcontext";
  328.     cmenu.setAttribute("type", "context");
  329.     cmenu.innerHTML = '<menu label="Text Highlight and Seek">' +
  330.       '<menuitem id="THDshowbar" label="Show bar"></menuitem>' +
  331.       '<menuitem id="THDenableset" label="Enable matching set"></menuitem>' +
  332.       '<menuitem id="THDdisableset" label="Disable this set"></menuitem>' +
  333.       '<menuitem id="THDnewset" label="Add new set"></menuitem>' +
  334.       '</menu>';
  335.     document.body.appendChild(cmenu);
  336.     document.getElementById("THDshowbar").addEventListener("click",editKW,false);
  337.     document.getElementById("THDenableset").addEventListener("click",cmenuEnable,false);
  338.     document.getElementById("THDdisableset").addEventListener("click",cmenuDisable,false);
  339.     document.getElementById("THDnewset").addEventListener("click",cmenuNewset,false);
  340.     // attach menu and create event for filtering
  341.     document.body.setAttribute("contextmenu", "THDcontext");
  342.     document.body.addEventListener("contextmenu",cmenuFilter,false);
  343.   }
  344.  
  345.   if (!GM4) GM_registerMenuCommand("TEST ONLY - flush keyword sets for Text Highlight and Seek", flushData);
  346. }
  347. THS_init();
  348.  
  349. // Main workhorse routine
  350. function THmo_doHighlight(el,subset){
  351.   if (subset) var keyset = subset;
  352.   else var keyset = hlkeys;
  353.   for (var j = 0; j < keyset.length; ++j) {
  354.     var hlset = keyset[j];
  355.     if (hlobj[hlset].visible == "true" && hlobj[hlset].enabled == "true"){
  356.       var hlkeywords = hlobj[hlset].keywords;
  357.       if (hlkeywords.length > 0) {
  358.         if (hlobj[hlset].type != "regex"){
  359.           var rQuantifiers = /[-\/\\^$*+?.()[\]{}]/g;
  360.           hlkeywords = hlkeywords.replace(rQuantifiers, '\\$&');
  361.           if (hlobj[hlset].type == "word"){
  362.             hlkeywords = "\\b" + hlkeywords.replace(/\|/g, "\\b|\\b") + "\\b";
  363.           }
  364.         }
  365.         //console.log("hlset:"+hlset+"\nhlkeywords:"+hlkeywords);
  366.         var pat = new RegExp('(' + hlkeywords + ')', 'gi');
  367.         var span = document.createElement('thdfrag');
  368.         span.setAttribute("thdcontain","true");
  369.         // getting all text nodes with a few exceptions
  370.         if (hlprecode){
  371.           var snapElements = document.evaluate(
  372.             './/text()[normalize-space() != "" ' +
  373.             'and not(ancestor::style) ' +
  374.             'and not(ancestor::script) ' +
  375.             'and not(ancestor::textarea) ' +
  376.             'and not(ancestor::div[@id="thdtopbar"]) ' +
  377.             'and not(ancestor::div[@id="kwhiedit"]) ' +
  378.             'and not(parent::thdfrag[@txhidy15])]',
  379.             el, null, XPathResult.UNORDERED_NODE_SNAPSHOT_TYPE, null);
  380.         } else {
  381.           var snapElements = document.evaluate(
  382.             './/text()[normalize-space() != "" ' +
  383.             'and not(ancestor::style) ' +
  384.             'and not(ancestor::script) ' +
  385.             'and not(ancestor::textarea) ' +
  386.             'and not(ancestor::pre) ' +
  387.             'and not(ancestor::code) ' +
  388.             'and not(ancestor::div[@id="thdtopbar"]) ' +
  389.             'and not(ancestor::div[@id="kwhiedit"]) ' +
  390.             'and not(parent::thdfrag[@txhidy15])]',
  391.             el, null, XPathResult.UNORDERED_NODE_SNAPSHOT_TYPE, null);
  392.         }
  393.  
  394.         if (!snapElements.snapshotItem(0)) { break; }
  395.  
  396.         for (var i = 0, len = snapElements.snapshotLength; i < len; i++) {
  397.           var node = snapElements.snapshotItem(i);
  398.           // check if it contains the keywords
  399.           if (pat.test(node.nodeValue)) {
  400.             // create an element, replace the text node with an element
  401.             var sp = span.cloneNode(true);
  402.             sp.innerHTML = node.nodeValue.replace(/</g, '&lt;').replace(/>/g, '&gt;').replace(pat, '<thdfrag class="THmo '+hlset+'" txhidy15="'+hlset+'">$1</thdfrag>');
  403.             node.parentNode.replaceChild(sp, node);
  404.             // try to un-nest containers
  405.             if (sp.parentNode.hasAttribute("thdcontain")) sp.outerHTML = sp.innerHTML;
  406.           }
  407.         }
  408.       }
  409.     }
  410.   }
  411. }
  412. function insertCSS(setkeys){
  413.   for (var j = 0; j < setkeys.length; ++j){
  414.     var hlset = setkeys[j];
  415.     if (hlobj[hlset].visible == "true"){
  416.       var rule = "."+hlset+"{display:inline!important;";
  417.       if (hlobj[hlset].textcolor.length > 0) rule += "color:"+hlobj[hlset].textcolor+";";
  418.       if (hlobj[hlset].backcolor.length > 0) rule += "background-color:"+hlobj[hlset].backcolor+";";
  419.       if (hlobj[hlset].fontweight.length > 0) rule += "font-weight:"+hlobj[hlset].fontweight+";";
  420.       if (hlobj[hlset].custom.length > 0) rule += hlobj[hlset].custom+";";
  421.       rule += "}";
  422.       var setrule = document.querySelector('style[hlset="' + hlset +'"]');
  423.       if (!setrule){
  424.         var s = document.createElement("style");
  425.         s.type = "text/css";
  426.         s.setAttribute("hlset", hlset);
  427.         s.appendChild(document.createTextNode(rule));
  428.         document.body.appendChild(s);
  429.       } else {
  430.         setrule.innerHTML = rule;
  431.       }
  432.     }
  433.   }
  434. }
  435. function editKW(e){
  436.   refreshSetList();
  437.   // show form
  438.   document.getElementById("thdtopbar").style.display = "block";
  439.   document.getElementById("thdtopspacer").style.display = "block";
  440. }
  441. function thdDropSetList(e){
  442.   refreshSetList();
  443.   document.getElementById("thdtopdrop").style.display = "block";
  444. }
  445. function thddroptoggle(e){
  446.   if (document.getElementById("thdtopdrop").style.display == "none") thdDropSetList();
  447.   else document.getElementById("thdtopdrop").style.display = "none";
  448. }
  449. function refreshSetList(e){
  450.   // clear old rows from form
  451.   document.getElementById("kwhitbod").innerHTML = "";
  452.   // populate data - hlobj is global
  453.   for (var j = 0; j < hlkeys.length; ++j){
  454.     var hlset = hlkeys[j];
  455.     if (hlobj[hlset].visible == "true"){
  456.       if (hlobj[hlset].enabled == "true") var strchk = ' checked=\"checked\"';
  457.       else var strchk = '';
  458.       var newrow = document.createElement("tr");
  459.       var thdtypenote = '';
  460.       newrow.setAttribute("kwhiset", hlset);
  461.       if(hlobj[hlset].type != "string"){
  462.         thdtypenote = '<span class="thdtype">' + hlobj[hlset].type + '</span>';
  463.       } 
  464.       if (j == 0){
  465.         newrow.innerHTML = '<td style=\"width:286px\"><div class=\"' + hlset + '\">' + hlobj[hlset].keywords + '</div>' + thdtypenote + '</td>' +
  466.           '<td style=\"width:195px\"><button kwhiset=\"' + hlset + '\" title=\"Bring matches into view\">Seek</button> ' +
  467.           '<button kwhiset=\"' + hlset + '\">Edit</button> <label><input type=\"checkbox\" kwhiset=\"' + hlset + 
  468.           '\"' + strchk + '"> Enabled </label></td>';
  469.       } else {
  470.         newrow.innerHTML = '<td><div class=\"' + hlset + '\">' + hlobj[hlset].keywords + '</div>' + thdtypenote + '</td>' +
  471.           '<td><button kwhiset=\"' + hlset + '\" title=\"Bring matches into view\">Seek</button> ' +
  472.           '<button kwhiset=\"' + hlset + '\">Edit</button> <label><input type=\"checkbox\" kwhiset=\"' + hlset + 
  473.           '\"' + strchk + '"> Enabled </label></td>';
  474.       }
  475.       document.getElementById("kwhitbod").appendChild(newrow);
  476.     }
  477.   }
  478. }
  479. async function kwhiformevent(e){
  480.   if (e.target.nodeName == "INPUT"){ // Enabled checkbox
  481.     var hlsetnum = e.target.getAttribute("kwhiset");
  482.     kwhienabledisable(hlsetnum, e.target.checked);
  483.   } 
  484.   if (e.target.nodeName == "BUTTON"){ // Call up edit form or find bar
  485.     var hlset = e.target.getAttribute('kwhiset');
  486.     if (e.target.textContent == "Edit"){
  487.       // need to cancel in-place editor if it's open
  488.       kwhicancelipe(hlset);
  489.       // set set number attribute
  490.       document.querySelector('#kwhiedit tr').setAttribute('kwhiset', hlset);
  491.       // set class for keywords
  492.       document.querySelector('#kwhiedit td:nth-of-type(1) p:nth-of-type(1)').className = hlset;
  493.       // enter placeholder text & type
  494.       document.querySelector('#kwhiedit td:nth-of-type(1) p:nth-of-type(1)').textContent = hlobj[hlset].keywords;
  495.       document.getElementById("kwhipattype").selectedIndex = 0;
  496.       if (hlobj[hlset].type == "word") document.getElementById("kwhipattype").selectedIndex = 1;
  497.       if (hlobj[hlset].type == "regex") document.getElementById("kwhipattype").selectedIndex = 2;
  498.       // set style editing to default and override with set rules
  499.       kwhieditstyle = ["rgb(0,0,255)","rgb(255,255,0)","inherit",""]; // defaults
  500.       if (hlobj[hlset].textcolor.length > 0) kwhieditstyle[0] = hlobj[hlset].textcolor;
  501.       if (hlobj[hlset].backcolor.length > 0) kwhieditstyle[1] = hlobj[hlset].backcolor;
  502.       if (hlobj[hlset].fontweight.length > 0) kwhieditstyle[2] = hlobj[hlset].fontweight;
  503.       if (hlobj[hlset].custom.length > 0) kwhieditstyle[3] = hlobj[hlset].custom;
  504.       kwhiShowEditForm();
  505.     }
  506.     if (e.target.textContent == "Seek"){
  507.       // need to cancel in-place editor if it's open
  508.       kwhicancelipe(hlset);
  509.       // Populate current seek set to #thdtopkeywords
  510.       var divDataTD = e.target.parentNode.previousElementSibling;
  511.       document.getElementById("thdtopkeywords").innerHTML = "<i>Seeking:</i> " + divDataTD.firstChild.outerHTML;
  512.       // Store set to seek in #thdtopfindbuttons
  513.       document.getElementById("thdtopfindbuttons").setAttribute("thdseek", hlset);
  514.       // Close Keyword Sets form
  515.       document.getElementById('thdtopdrop').style.display='none';
  516.       // Send click event to the "seek first" button
  517.       document.getElementById('thdtopfindbuttons').children[0].click();
  518.     }
  519.     if (e.target.textContent == "Save"){ // Check and save in-place keyword edit
  520.       // get set number attribute
  521.       var hlset = e.target.getAttribute("kwhiset");
  522.       var kwtext = document.querySelector('div.'+hlset+' p.'+hlset).textContent;
  523.       if (kwtext == hlobj[hlset].keywords){ // Nothing to save, cancel the edit
  524.         kwhicancelipe(hlset);
  525.         return;
  526.       }
  527.       // Save keyword changes WITHOUT user confirmation
  528.       hlobj[hlset].prevkeyw = hlobj[hlset].keywords;
  529.       hlobj[hlset].prevtype = hlobj[hlset].type;
  530.       if (hlobj[hlset].type != "regex") hlobj[hlset].keywords = kwtext;
  531.       else{
  532.         hlobj[hlset].keywords = kwtext.replace(/\\/g, "\\");
  533.         hlobj[hlset].hlpat = ""; //TODOLATER
  534.       }
  535.       // Set updated date/time
  536.       hlobj[hlset].updated = (new Date()).toJSON();
  537.       // Persist the object
  538.       hljson = JSON.stringify(hlobj);
  539.       if (!GM4){
  540.         GM_setValue("kwstyles", hljson);
  541.       } else {
  542.         await GM.setValue("kwstyles", hljson);
  543.       }
  544.       // Update CSS rule and parent form
  545.       insertCSS([hlset]);
  546.       refreshSetList();
  547.       // Unhighlight, re-highlight, close in-place editor
  548.       unhighlight(hlset);
  549.       THmo_doHighlight(document.body,[hlset]);
  550.       kwhicancelipe(hlset);
  551.     }
  552.     if (e.target.textContent == "Cancel"){ // Revert in-place editor
  553.       // get set number attribute
  554.       var hlset = e.target.getAttribute("kwhiset");
  555.       kwhicancelipe(hlset);
  556.     }
  557.     if (e.target.textContent == "Revert"){ // Restore previous keywords
  558.       // get set number attribute
  559.       var hlset = e.target.getAttribute("kwhiset");
  560.       // gray the button
  561.       document.getElementById('thsrevert' + hlset).setAttribute('disabled', 'disabled');
  562.       // get the previous keywords (if any)
  563.       if (hlobj[hlset].prevkeyw && hlobj[hlset].prevkeyw != '') var kwtext = hlobj[hlset].prevkeyw;
  564.       if (!kwtext || kwtext == ''){ // uh-oh
  565.         alert('Unable to undo, sorry!');
  566.         document.getElementById('thsrevert' + hlset).setAttribute('disabled', 'disabled');
  567.         return;
  568.       }
  569.       // Save keyword changes WITHOUT user confirmation
  570.       hlobj[hlset].keywords = kwtext;
  571.       hlobj[hlset].type = hlobj[hlset].prevtype;
  572.       hlobj[hlset].prevkeyw = '';
  573.       hlobj[hlset].prevtype = '';
  574.       // Set updated date/time
  575.       hlobj[hlset].updated = (new Date()).toJSON();
  576.       // Persist the object
  577.       hljson = JSON.stringify(hlobj);
  578.       if (!GM4){
  579.         GM_setValue("kwstyles", hljson);
  580.       } else {
  581.         await GM.setValue("kwstyles", hljson);
  582.       }
  583.       // Update CSS rule and parent form
  584.       insertCSS([hlset]);
  585.       refreshSetList();
  586.       // Unhighlight, re-highlight
  587.       unhighlight(hlset);
  588.       THmo_doHighlight(document.body,[hlset]);
  589.     }
  590.   }
  591.   if (e.type == "dblclick" && e.target.nodeName == "DIV"){ // Set up in-place quick editor
  592.     if (e.target.children.length == 0) { // Ignore the double-click if the editor was already set up
  593.       var hlset = e.target.className;
  594.       e.target.innerHTML = '<p class="' + hlset +'" contenteditable="true" style="border:1px dotted #000">' + e.target.textContent + '</p>' +
  595.         '<p style="background-color:#fff;font-size:0.8em"><button kwhiset="' + hlset + '" title="Update keywords for this set" style="font-size:0.8em">' +
  596.         'Save</button> <button kwhiset="' + hlset + '" title="Keep saved keywords" style="font-size:0.8em">Cancel</button> <button kwhiset="' + 
  597.         hlset + '" id="thsrevert' + hlset + '" title="Revert last edit" style="font-size:0.8em" disabled>Revert</button></p>';
  598.       var rng = document.createRange();
  599.       rng.selectNodeContents(e.target.children[0]);
  600.       var sel = window.getSelection();        
  601.       sel.removeAllRanges();
  602.       sel.addRange(rng);
  603.       if (hlobj[hlset].prevkeyw && hlobj[hlset].prevkeyw != '') {
  604.         document.getElementById('thsrevert' + hlset).removeAttribute('disabled');
  605.         document.getElementById('thsrevert' + hlset).setAttribute('title','Revert to "' + hlobj[hlset].prevkeyw + '"');
  606.       }
  607.     }
  608.   } 
  609. }
  610. async function kwhienabledisable(hlsetnum,enable){
  611.   if (enable == false) {
  612.     // Update object and persist to GM storage
  613.     hlobj[hlsetnum].enabled = "false";
  614.     hljson = JSON.stringify(hlobj);
  615.     if (!GM4){
  616.       GM_setValue("kwstyles", hljson);
  617.     } else {
  618.       await GM.setValue("kwstyles", hljson);
  619.     }
  620.     // Unhighlight
  621.     unhighlight(hlsetnum);
  622.     // Clear seek info from bar if this set is there
  623.     var seekset = document.getElementById("thdtopfindbuttons").getAttribute("thdseek");
  624.     if (seekset){
  625.       if(seekset.indexOf("|") > -1) seekset = seekset.split("|")[0];
  626.       if (hlsetnum == seekset){
  627.         document.getElementById("thdtopfindbuttons").setAttribute("thdseek","");
  628.         document.getElementById("thdseekdesc").textContent = "Seek";
  629.         document.getElementById("thdtopkeywords").innerHTML = "Click here to manage keyword/highlight sets";
  630.       }
  631.     } 
  632.   } else {
  633.     // Update object and persist to GM storage
  634.     hlobj[hlsetnum].enabled = "true";
  635.     hljson = JSON.stringify(hlobj);
  636.     if (!GM4){
  637.       GM_setValue("kwstyles", hljson);
  638.     } else {
  639.       await GM.setValue("kwstyles", hljson);
  640.     }
  641.     // Highlight
  642.     THmo_doHighlight(document.body,[hlsetnum]);
  643.   }
  644. }
  645. function kwhinewset(e,kwtext){ // call up new set form
  646.   // set set number attribute
  647.   document.querySelector('#kwhiedit tr').setAttribute('kwhiset', 'new');
  648.   // clear class for keywords
  649.   document.querySelector('#kwhiedit td:nth-of-type(1) p:nth-of-type(1)').className = "";
  650.   // enter placeholder text & default type
  651.   if (kwtext) document.querySelector('#kwhiedit td:nth-of-type(1) p:nth-of-type(1)').textContent = kwtext;
  652.   else document.querySelector('#kwhiedit td:nth-of-type(1) p:nth-of-type(1)').textContent = "larry|moe|curly";
  653.   document.getElementById("kwhipattype").selectedIndex = 0;
  654.   // set style editing to defaults
  655.   kwhieditstyle = ["rgb(0,0,255)","rgb(255,255,0)","inherit",""];
  656.   kwhiShowEditForm();
  657. }
  658. function kwhiShowEditForm(){
  659.   var rule = "#stylecontrols>p>span{";
  660.   if (kwhieditstyle[0].length > 0) rule += "color:"+kwhieditstyle[0]+";";
  661.   if (kwhieditstyle[1].length > 0) rule += "background-color:"+kwhieditstyle[1]+";";
  662.   if (kwhieditstyle[2].length > 0) rule += "font-weight:"+kwhieditstyle[2]+";";
  663.   if (kwhieditstyle[3].length > 0) rule += kwhieditstyle[3]+";";
  664.   document.getElementById("kwhiedittemp").innerHTML = rule + "}";
  665.   populateRGB("txt",kwhieditstyle[0]);
  666.   populateRGB("bkg",kwhieditstyle[1]);
  667.   document.getElementById("fwsel").value = kwhieditstyle[2];
  668.   document.getElementById("kwhicustom").value = kwhieditstyle[3];
  669.   // default the reversion button to disabled
  670.   var rbtn = document.getElementById("btnkwhirevert");
  671.   rbtn.setAttribute('disabled','disabled');
  672.   if (rbtn.hasAttribute('kwhiset')) rbtn.removeAttribute('kwhiset');
  673.   rbtn.setAttribute('title','');
  674.   // show form
  675.   document.getElementById("kwhiedit").style.display = "block";
  676.   // check for possible reversion option
  677.   var hlset = document.querySelector('#kwhiedit td:nth-of-type(1) p:nth-of-type(1)').className;
  678.   if (hlset != "" && hlobj[hlset].prevkeyw && hlobj[hlset].prevkeyw != '') {
  679.     rbtn.removeAttribute('disabled');
  680.     rbtn.setAttribute('kwhiset',hlset);
  681.     rbtn.setAttribute('title','Revert to "' + hlobj[hlset].prevkeyw + '"');
  682.   }
  683. }
  684. function kwhiexport(e){
  685.   prompt("JSON data\nPress Ctrl+c or right-click to copy\n ", JSON.stringify(hlobj));
  686. }
  687. async function kwhiimport(e){
  688.   var txtImport = prompt("Paste in the exported data and click OK to start parsing", "");
  689.   try{
  690.     var objImport = JSON.parse(txtImport);
  691.   } catch(err){
  692.     alert("Sorry, data does not appear to be in the proper format. Here's the error according to Firefox: \n\n"+err+"\n\nHopefully you can resolve that!");
  693.     return;
  694.   }
  695.   var keysImport = Object.keys(objImport);
  696.   // Compare for duplicate set numbers
  697.   var keysString = "|" + hlkeys.join("|") + "|";
  698.   var counter = 0;
  699.   for (var j = 0; j < keysImport.length; ++j){
  700.     if(keysString.indexOf("|"+keysImport[j]+"|") > -1) counter++;
  701.   }
  702.   if (counter > 0){
  703.     var arc = prompt("Detected "+counter+" of "+keysImport.length+" set numbers to be imported already exist. Do you want to:\nAdd these sets [A]\nReplace existing sets [R]\nTotally replace all existing sets [T]\nCancel the import [C]?","A");
  704.     if (!arc) return;
  705.     if (arc.length == 0) return;
  706.     if (arc.toLowerCase() == "c") return;
  707.     if (arc.toLowerCase() == "t"){
  708.       if(!confirm("Total replacement has no error checking. Click OK to confirm total replacement, or click Cancel to only Replace matching sets.")) arc = "R";
  709.     }
  710.   } else {
  711.     var arc = "A";
  712.   }
  713.   if (arc.toLowerCase() == "t"){ // Total replacement
  714.     hlobj = JSON.parse(txtImport);
  715.     // Update the global key array
  716.     hlkeys = Object.keys(hlobj);
  717.     // Persist the object
  718.     hljson = JSON.stringify(hlobj);
  719.     if (!GM4){
  720.       GM_setValue("kwstyles", hljson);
  721.     } else {
  722.       await GM.setValue("kwstyles", hljson);
  723.     }
  724.     // Apply to page (see below)
  725.   } else {
  726.     for (var j = 0; j < keysImport.length; ++j){ // Add/replace individual sets
  727.       var impset = keysImport[j];
  728.       if(keysString.indexOf("|"+impset+"|") > -1 && arc.toLowerCase() == "r"){ // replace
  729.         var hlset = impset;
  730.         hlobj[hlset].keywords = objImport[impset].keywords || "keywords|not|found";
  731.         hlobj[hlset].type = objImport[impset].type || "string";
  732.         hlobj[hlset].hlpat = objImport[impset].hlpat || "";
  733.         hlobj[hlset].textcolor = objImport[impset].textcolor || "rgb(0,0,255)";
  734.         hlobj[hlset].backcolor = objImport[impset].backcolor || "rgb(255,255,0)";
  735.         hlobj[hlset].fontweight = objImport[impset].fontweight || "inherit";
  736.         hlobj[hlset].custom = objImport[impset].custom || "";
  737.         hlobj[hlset].enabled = objImport[impset].enabled || "true";
  738.         hlobj[hlset].visible = objImport[impset].visible || "true";
  739.         hlobj[hlset].updated = (new Date()).toJSON();
  740.       } else { // add
  741.         if(keysString.indexOf("|"+impset+"|") > -1 && arc.toLowerCase() == "a"){
  742.           // create a new set number instead
  743.           var hlset = "set" + hlnextset;
  744.           hlnextset += 1;
  745.           if (!GM4){
  746.             GM_setValue("hlnextset",hlnextset);
  747.           } else {
  748.             await GM.setValue("hlnextset",hlnextset);
  749.           }
  750.         } else {
  751.           var hlset = impset;
  752.         }
  753.         // add the set
  754.         hlobj[hlset] = {
  755.           keywords : objImport[impset].keywords || "keywords|not|found",
  756.           type: objImport[impset].type || "string",
  757.           hlpat : objImport[impset].hlpat || "",
  758.           textcolor : objImport[impset].textcolor || "rgb(0,0,255)",
  759.           backcolor : objImport[impset].backcolor || "rgb(255,255,0)",
  760.           fontweight : objImport[impset].fontweight || "inherit",
  761.           custom : objImport[impset].custom || "",
  762.           enabled : objImport[impset].enabled || "true",
  763.           visible : objImport[impset].visible || "true",
  764.           updated : objImport[impset].updated || ""
  765.         }
  766.       }
  767.       // Update the global key array
  768.       hlkeys = Object.keys(hlobj);
  769.       // Persist the object
  770.       hljson = JSON.stringify(hlobj);
  771.       if (!GM4){
  772.         GM_setValue("kwstyles", hljson);
  773.       } else {
  774.         await GM.setValue("kwstyles", hljson);
  775.       }
  776.     }
  777.   }
  778.   // TODO: Could an error  prevent reaching this point, for example, if the import object is missing properties due to bad editing?
  779.   // Update CSS rule and command bar list
  780.   insertCSS(hlkeys);
  781.   refreshSetList();
  782.   // Unhighlight all, re-highlight all, close dialog
  783.   unhighlight(null);
  784.   THmo_doHighlight(document.body);
  785. }
  786. async function kwhihbtn(e){
  787.   if (e.target.checked == false){
  788.     hlbtnvis = "off";
  789.     if (!GM4){
  790.       GM_setValue("hlbtnvis",hlbtnvis);
  791.     } else {
  792.       await GM.setValue("hlbtnvis",hlbtnvis);
  793.     }
  794.     document.getElementById("btnshowkwhi").style.display = "none";
  795.   } else {
  796.     hlbtnvis = "on";
  797.     if (!GM4){
  798.       GM_setValue("hlbtnvis",hlbtnvis);
  799.     } else {
  800.       await GM.setValue("hlbtnvis",hlbtnvis);
  801.     }
  802.     document.getElementById("btnshowkwhi").style.display = "";
  803.   }
  804. }
  805. async function kwhiprecode(e){
  806.   if (e.target.checked == false){
  807.     // Update var, persist the preference, unhighlight, rehighlight
  808.     hlprecode = false;
  809.     if (!GM4){
  810.       GM_setValue("hlprecode",hlprecode);
  811.     } else {
  812.       await GM.setValue("hlprecode",hlprecode);
  813.     }
  814.     unhighlight(null);
  815.     THmo_doHighlight(document.body);
  816.   } else {
  817.     // Update var, persist the preference, rehighlight
  818.     hlprecode = true;
  819.     if (!GM4){
  820.       GM_setValue("hlprecode",hlprecode);
  821.     } else {
  822.       await GM.setValue("hlprecode",hlprecode);
  823.     }
  824.     THmo_doHighlight(document.body);
  825.   }
  826. }
  827. function kwhicancelipe(setno){
  828.   // clean up in-place editor(s)
  829.   if (setno && setno != ''){
  830.     var kwdiv = document.querySelector('#kwhitbod .'+setno);
  831.     if (kwdiv){
  832.       kwdiv.innerHTML = hlobj[setno].keywords;
  833.       return;
  834.     }
  835.   } else { // Check 'em all
  836.     var divs = document.querySelector('#kwhitbod div');
  837.     for (var n=0; n<divs.length; n++){
  838.       if (divs[n].children.length > 0 && divs[n].className != '') kwhicancelipe(divs[n].className);
  839.     }
  840.   }
  841. }
  842. function kwhitopdropclose(e){
  843.   kwhicancelipe('');
  844.   document.getElementById('thdtopdrop').style.display='none';
  845. }
  846. function thsreread(e){
  847.   //TODO
  848. }
  849. async function thsframeselect(e){
  850.   var selopt = e.target.options[e.target.selectedIndex].value;
  851.   if (hlframe != selopt) {
  852.     hlframe = selopt;
  853.     if (!GM4){
  854.       GM_setValue("hlframe",hlframe);
  855.     } else {
  856.       await GM.setValue("hlframe",hlframe);
  857.     }
  858.     setthsframeopts();
  859.   }
  860. }
  861. function setthsframeopts(){
  862.   var sel = document.getElementById("hlframeselect");
  863.   if (hlframe == "none"){
  864.     sel.options[0].selected = true;
  865.     sel.options[0].setAttribute("selected","selected");
  866.   } else {
  867.     sel.options[0].selected = false;
  868.     if (sel.options[0].hasAttribute("selected")) sel.options[0].removeAttribute("selected");
  869.   }
  870.   if (hlframe == "same"){
  871.     sel.options[1].selected = true;
  872.     sel.options[1].setAttribute("selected","selected");
  873.   } else {
  874.     sel.options[1].selected = false;
  875.     if (sel.options[1].hasAttribute("selected")) sel.options[1].removeAttribute("selected");
  876.   }
  877.   if (hlframe == "any"){
  878.     sel.options[2].selected = true;
  879.     sel.options[2].setAttribute("selected","selected");
  880.   } else {
  881.     sel.options[2].selected = false;
  882.     if (sel.options[2].hasAttribute("selected")) sel.options[2].removeAttribute("selected");
  883.   }
  884. }
  885. function thdseek(e){
  886.   if (e.target.nodeName == "DIV") return; // ignore background clicks
  887.   var seekset = e.currentTarget.getAttribute("thdseek");
  888.   if (!seekset){ // user needs to select a set to seek in
  889.     thdDropSetList();
  890.   } else {
  891.     var seekparams = seekset.split("|");
  892.     var seekmatches = document.querySelectorAll('thdfrag[txhidy15="'+seekparams[0]+'"]');
  893.     // Update or add total size of set; FIGURE OUT LATER: what if this changed??
  894.     seekparams[1] = seekmatches.length;
  895.     if (seekmatches.length > 0){
  896.       if (e.target.nodeName == "SPAN"){ // re-scroll to the current reference
  897.         thdshow(seekmatches[parseInt(seekparams[2])]);
  898.       } else { // BUTTON
  899.         var seekaction = e.target.getAttribute("thdaction");
  900.         if (!seekaction) seekaction = "f";
  901.         if (seekparams.length == 3){ // User has seeked in this set
  902.           switch (seekaction){
  903.             case "f":
  904.               seekparams[2] = 0;
  905.               var rtn = thdshow(seekmatches[parseInt(seekparams[2])]);
  906.               if (rtn == false) seekagain("n");
  907.               break;
  908.             case "p":
  909.               if (parseInt(seekparams[2]) > 0) {
  910.                 seekparams[2] = parseInt(seekparams[2]) - 1;
  911.                 var rtn = thdshow(seekmatches[parseInt(seekparams[2])]);
  912.                 if (rtn == false){
  913.                   if (parseInt(seekparams[2]) > 0) seekagain("p");
  914.                   else seekfailnotc("No previous match visible");
  915.                 } 
  916.               } else {
  917.                 seekfailnotc("Already reached first match");
  918.               }
  919.               break;
  920.             case "n":
  921.               if (parseInt(seekparams[2]) < (seekmatches.length-1)) {
  922.                 seekparams[2] = parseInt(seekparams[2]) + 1;
  923.                 var rtn = thdshow(seekmatches[parseInt(seekparams[2])]);
  924.                 if (rtn == false){
  925.                   if (parseInt(seekparams[2]) < (seekmatches.length-1)) seekagain("n");
  926.                   else seekfailnotc("No later match visible");
  927.                 } 
  928.               } else {
  929.                 seekparams[2] = (seekmatches.length-1); // in case it's too high, fix that here
  930.                 seekfailnotc("Already reached last match");
  931.               }
  932.               break;
  933.             case "l":
  934.               seekparams[2] = (seekmatches.length-1);
  935.               var rtn = thdshow(seekmatches[parseInt(seekparams[2])]);
  936.               if (rtn == false) seekagain("p");
  937.               break;
  938.           }
  939.         } else {
  940.           seekparams[2] = 0;
  941.           thdshow(seekmatches[parseInt(seekparams[2])]);
  942.         }
  943.         document.getElementById("thdtopfindbuttons").setAttribute("thdseek", seekparams.join("|"));
  944.         document.getElementById("thdseekdesc").textContent = (parseInt(seekparams[2])+1) + " of " + seekparams[1];
  945.       }
  946.     } else {
  947.       document.getElementById("thdseekdesc").textContent = "0 of 0";
  948.     }
  949.   }
  950. }
  951. function thdshow(elt){ // this could be much prettier with animation!
  952.   elt.scrollIntoView();
  953.   var rect = elt.getClientRects()[0];
  954.   if (rect){ // scroll down if behind the control bar
  955.     if (rect.top < 27) window.scroll(0, window.scrollY-27);
  956.     return true;
  957.   } else { // match is not visible
  958.     return false;
  959.   }
  960. }
  961. function seekagain(dir){
  962.   switch (dir){
  963.     case "p":
  964.       seekfailnotc("Hidden, trying previous match...");
  965.       window.setTimeout(function(){document.querySelector('button[thdaction="p"]').click();},250);
  966.       break;
  967.     case "n":
  968.       seekfailnotc("Hidden, trying next match...");
  969.       window.setTimeout(function(){document.querySelector('button[thdaction="n"]').click();},250);
  970.       break;
  971.   }
  972. }
  973. var evttimer;
  974. function seekfailnotc(txt){
  975.   var sfdiv = document.getElementById("thdseekfail");
  976.   sfdiv.textContent = txt;
  977.   sfdiv.style.display = "block";
  978.   if (evttimer) window.clearTimeout(evttimer);
  979.   evttimer = window.setTimeout(function(){document.getElementById("thdseekfail").style.display="none";}, 800);
  980. }
  981. function unhighlight(setnum){
  982.   if (setnum) var tgts = document.querySelectorAll('thdfrag[txhidy15="' + setnum + '"]');
  983.   else var tgts = document.querySelectorAll('thdfrag[txhidy15]'); // remove ALL
  984.   for (var i=0; i<tgts.length; i++){
  985.     // Check for co-extant parent(s) to remove potentially stranded <span>s
  986.     var parnode = tgts[i].parentNode, parpar = parnode.parentNode, tgtspan;
  987.     if (parnode.hasAttribute("thdcontain") && parnode.innerHTML == tgts[i].outerHTML){
  988.       parnode.outerHTML = tgts[i].textContent.replace(/</g, '&lt;').replace(/>/g, '&gt;');
  989.       tgtspan = parpar;
  990.     } else {
  991.       tgts[i].outerHTML = tgts[i].textContent.replace(/</g, '&lt;').replace(/>/g, '&gt;');
  992.       tgtspan = parnode;
  993.     }
  994.     tgtspan.normalize();
  995.     if (tgtspan.hasAttribute("thdcontain")){
  996.       parnode = tgtspan.parentNode;
  997.       if (parnode){
  998.         if (parnode.hasAttribute("thdcontain") && parnode.innerHTML == tgtspan.outerHTML && tgtspan.querySelectorAll('thdfrag[txhidy15]').length == 0){
  999.           parnode.outerHTML = tgtspan.innerHTML;
  1000.         } else if (parnode.innerHTML == tgtspan.outerHTML && tgtspan.querySelectorAll('thdfrag[txhidy15]').length == 0) {
  1001.           parnode.innerHTML = tgtspan.innerHTML;
  1002.         }
  1003.       }
  1004.     }
  1005.   }
  1006. }
  1007.  
  1008. async function kwhisavechg(e){
  1009.   // Update object, regenerate CSS if applicable, apply to document
  1010.   var hlset = document.querySelector('#kwhiedit td:nth-of-type(1) p:nth-of-type(1)').className;
  1011.   var kwtext = document.querySelector('#kwhiedit td:nth-of-type(1) p:nth-of-type(1)').textContent;
  1012.   if (hlset == ""){ 
  1013.     // create a new set number
  1014.     var hlset = "set" + hlnextset;
  1015.     hlnextset += 1;
  1016.     if (!GM4){
  1017.       GM_setValue("hlnextset",hlnextset);
  1018.     } else {
  1019.       await GM.setValue("hlnextset",hlnextset);
  1020.     }
  1021.     // add the set
  1022.     if (document.getElementById("kwhipattype").value == "regex"){
  1023.       kwtext = kwtext.replace(/\\/g, "\\");
  1024.       var hlpattxt = ""; //TODOLATER
  1025.     } else {
  1026.       var hlpattxt = "";
  1027.     }
  1028.     hlobj[hlset] = {
  1029.       keywords : kwtext,
  1030.       type : document.getElementById("kwhipattype").value,
  1031.       hlpat : hlpattxt,
  1032.       textcolor : kwhieditstyle[0],
  1033.       backcolor : kwhieditstyle[1],
  1034.       fontweight : kwhieditstyle[2],
  1035.       custom : kwhieditstyle[3],
  1036.       enabled : "true",
  1037.       visible : "true",
  1038.       updated : ""
  1039.     }
  1040.     // Update the global key array
  1041.     hlkeys = Object.keys(hlobj);
  1042.   } else {
  1043.     var oldtype = hlobj[hlset].type;
  1044.     hlobj[hlset].type = document.getElementById("kwhipattype").value;
  1045.     // Save keyword changes after user confirmation
  1046.     if (kwtext != hlobj[hlset].keywords){
  1047.       if (confirm("Save updated keywords (and other changes)?")){
  1048.         hlobj[hlset].prevkeyw = hlobj[hlset].keywords;
  1049.         hlobj[hlset].prevtype = oldtype;
  1050.         if (hlobj[hlset].type != "regex"){
  1051.           hlobj[hlset].keywords = kwtext;
  1052.         } else {
  1053.           hlobj[hlset].keywords = kwtext.replace(/\\/g, "\\");
  1054.           hlobj[hlset].hlpat = ""; //TODOLATER
  1055.         }
  1056.       } else return;
  1057.     }
  1058.     // Save style changes without confirmation
  1059.     hlobj[hlset].textcolor = kwhieditstyle[0];
  1060.     hlobj[hlset].backcolor = kwhieditstyle[1];
  1061.     hlobj[hlset].fontweight = kwhieditstyle[2];
  1062.     hlobj[hlset].custom = kwhieditstyle[3];
  1063.     // Set updated date/time
  1064.     hlobj[hlset].updated = (new Date()).toJSON();
  1065.   }
  1066.   // Persist the object
  1067.   hljson = JSON.stringify(hlobj);
  1068.   if (!GM4){
  1069.     GM_setValue("kwstyles", hljson);
  1070.   } else {
  1071.     await GM.setValue("kwstyles", hljson);
  1072.   }
  1073.   // Update CSS rule and parent form
  1074.   insertCSS([hlset]);
  1075.   refreshSetList();
  1076.   // Unhighlight, re-highlight, close dialog
  1077.   unhighlight(hlset);
  1078.   THmo_doHighlight(document.body,[hlset])
  1079.   document.getElementById('kwhiedit').style.display='none';
  1080. }
  1081. function kwhicancel(e){
  1082.   // Close dialog (fields will be refresh if it is opened again)
  1083.   document.getElementById('kwhiedit').style.display='none';
  1084. }
  1085. async function kwhiremove(e){
  1086.   var hlset = document.querySelector('#kwhiedit td:nth-of-type(1) p:nth-of-type(1)').className;
  1087.   if (hlset == ""){
  1088.     alert("This set has not been saved and therefore does not need to be hidden, you can just close the dialog to discard it.");
  1089.   } else {
  1090.     if (confirm("Are you sure you want to hide this set instead of editing it to your own liking?")){
  1091.       hlobj[hlset].visible = "false";
  1092.       hlobj[hlset].updated = (new Date()).toJSON();
  1093.       // Persist the object
  1094.       hljson = JSON.stringify(hlobj);
  1095.       if (!GM4){
  1096.         GM_setValue("kwstyles", hljson);
  1097.       } else {
  1098.         await GM.setValue("kwstyles", hljson);
  1099.       }
  1100.       // Update set list, remove highlighting, close form
  1101.       refreshSetList();
  1102.       unhighlight(hlset);
  1103.       document.getElementById('kwhiedit').style.display='none';
  1104.     }
  1105.   }
  1106. }
  1107. async function kwhirevert(e){
  1108.   // get set number attribute
  1109.   var hlset = e.target.getAttribute("kwhiset");
  1110.   // gray the button
  1111.   e.target.setAttribute('disabled', 'disabled');
  1112.   // get the previous keywords (if any)
  1113.   if (hlobj[hlset].prevkeyw && hlobj[hlset].prevkeyw != '') var kwtext = hlobj[hlset].prevkeyw;
  1114.   if (!kwtext || kwtext == ''){ // uh-oh
  1115.     alert('Unable to undo, sorry!');
  1116.     return;
  1117.   }
  1118.   // Save keyword changes WITHOUT user confirmation
  1119.   hlobj[hlset].keywords = kwtext;
  1120.   hlobj[hlset].type = hlobj[hlset].prevtype;
  1121.   hlobj[hlset].prevkeyw = '';
  1122.   hlobj[hlset].prevtype = '';
  1123.   // Set updated date/time
  1124.   hlobj[hlset].updated = (new Date()).toJSON();
  1125.   // Persist the object
  1126.   hljson = JSON.stringify(hlobj);
  1127.   if (!GM4){
  1128.     GM_setValue("kwstyles", hljson);
  1129.   } else {
  1130.     await GM.setValue("kwstyles", hljson);
  1131.   }
  1132.   // Update CSS rule and parent form
  1133.   insertCSS([hlset]);
  1134.   refreshSetList();
  1135.   // Unhighlight, re-highlight
  1136.   unhighlight(hlset);
  1137.   THmo_doHighlight(document.body,[hlset]);
  1138.   // Refresh the keywords and type
  1139.   document.querySelector('#kwhiedit td:nth-of-type(1) p:nth-of-type(1)').textContent = hlobj[hlset].keywords;
  1140.   document.getElementById("kwhipattype").selectedIndex = 0;
  1141.   if (hlobj[hlset].type == "word") document.getElementById("kwhipattype").selectedIndex = 1;
  1142.   if (hlobj[hlset].type == "regex") document.getElementById("kwhipattype").selectedIndex = 2;
  1143. }
  1144. function kwhicolorreset(e){
  1145.   // what set is this?
  1146.   var set = document.querySelector('#kwhiedit tr').getAttribute('kwhiset');
  1147.   // check which button, reset the RGB
  1148.   if (e.target.id == "btntxtreset"){
  1149.     if (set == "new"){
  1150.       kwhieditstyle[0] = "rgb(0,0,255)";
  1151.     } else {
  1152.       kwhieditstyle[0] = hlobj[set].textcolor;
  1153.     }
  1154.     populateRGB("txt",kwhieditstyle[0]);
  1155.     setdivstyle(["txt"]);
  1156.   }
  1157.   if (e.target.id == "btnbkgreset"){
  1158.     if (set == "new"){
  1159.       kwhieditstyle[1] = "rgb(255,255,0)";        
  1160.     } else {
  1161.       kwhieditstyle[1] = hlobj[set].backcolor;
  1162.     }
  1163.     populateRGB("bkg",kwhieditstyle[1]);
  1164.     setdivstyle(["bkg"]);
  1165.   }
  1166.   e.target.blur();
  1167. }
  1168. function populateRGB(prop,stylestring){
  1169.   var rgbvals = stylestring.substr(stylestring.indexOf("(")+1);
  1170.   rgbvals = rgbvals.substr(0,rgbvals.length-1).split(",");
  1171.   document.getElementById(prop+"r").value = parseInt(rgbvals[0]);
  1172.   document.getElementById(prop+"g").value = parseInt(rgbvals[1]);
  1173.   document.getElementById(prop+"b").value = parseInt(rgbvals[2]);
  1174. }
  1175. async function updatestyle(e){
  1176.   // validate value and apply change
  1177.   if (e.target.id.indexOf("txt") == 0 || e.target.id.indexOf("bkg") == 0){
  1178.     if (isNaN(e.target.value)){
  1179.       alert("Please only use values between 0 and 255");
  1180.       return;
  1181.     }
  1182.     if (parseInt(e.target.value) != e.target.value){
  1183.       e.target.value = parseInt(e.target.value);
  1184.     }
  1185.     if (e.target.value < 0){
  1186.       e.target.value = 0;
  1187.     }
  1188.     if (e.target.value > 255){
  1189.       e.target.value = 255;
  1190.     }
  1191.     if (e.target.id.indexOf("txt") == 0) setdivstyle(["txt"]);
  1192.     if (e.target.id.indexOf("bkg") == 0) setdivstyle(["bkg"]);
  1193.   } else {
  1194.     if (e.target.id == "kwhicustom") return;
  1195.     console.log("updatestyle on "+e.target.id);
  1196.   }
  1197. }
  1198. function setdivstyle(props){
  1199.   for (var i=0; i<props.length; i++){
  1200.     switch (props[i]){
  1201.       case "txt":
  1202.         kwhieditstyle[0] = "rgb(" + document.getElementById("txtr").value + "," +
  1203.           document.getElementById("txtg").value + "," + document.getElementById("txtb").value + ")";
  1204.         break;
  1205.       case "bkg":
  1206.         kwhieditstyle[1] = "rgb(" + document.getElementById("bkgr").value + "," +
  1207.           document.getElementById("bkgg").value + "," + document.getElementById("bkgb").value + ")";
  1208.         break;
  1209.       default:
  1210.         console.log("default?");
  1211.     }
  1212.   }
  1213.   var rule = "#stylecontrols>p>span{";
  1214.   if (kwhieditstyle[0].length > 0) rule += "color:"+kwhieditstyle[0]+";";
  1215.   if (kwhieditstyle[1].length > 0) rule += "background-color:"+kwhieditstyle[1]+";";
  1216.   if (kwhieditstyle[2].length > 0) rule += "font-weight:"+kwhieditstyle[2]+";";
  1217.   if (kwhieditstyle[3].length > 0) rule += kwhieditstyle[3]+";";
  1218.   document.getElementById("kwhiedittemp").innerHTML = rule + "}";
  1219. }
  1220. function kwhifwchg(e){
  1221.   kwhieditstyle[2] = e.target.value;
  1222.   setdivstyle([]);
  1223. }
  1224. function kwhicustom(e){
  1225.   kwhieditstyle[3] = document.getElementById("kwhicustom").value;
  1226.   setdivstyle([]);
  1227. }
  1228. async function kwhimaxrestore(e){
  1229.   var el = document.getElementById('kwhiedit');
  1230.   if (e.target.textContent == '^'){
  1231.     e.target.textContent = '_';
  1232.     e.target.setAttribute('title', 'Restore normal dialog size');
  1233.     el.style.left = '1px';
  1234.     el.style.width = 'calc(100% - 3px - 2em)';
  1235.     el.style.height = 'calc(100% - 4px - 2em)';
  1236.   } else {
  1237.   	e.target.textContent = '^';
  1238.     e.target.setAttribute('title', 'Maximize dialog size');
  1239.     el.style.left = '';
  1240.     el.style.width = '';
  1241.     el.style.height = '';
  1242.   }
  1243. }
  1244. function cmenuFilter(e){
  1245.   document.getElementById("THDenableset").setAttribute("disabled","disabled");
  1246.   document.getElementById("THDenableset").setAttribute("THDtext","");
  1247.   document.getElementById("THDdisableset").setAttribute("disabled","disabled");
  1248.   document.getElementById("THDdisableset").setAttribute("THDset","");
  1249.   var s = window.getSelection();
  1250.   if (s.isCollapsed) document.getElementById("THDnewset").setAttribute("THDtext","");
  1251.   else document.getElementById("THDnewset").setAttribute("THDtext",s.getRangeAt(0).toString().trim());
  1252.   if (e.target.hasAttribute('txhidy15')){
  1253.     document.getElementById("THDdisableset").removeAttribute("disabled");
  1254.     document.getElementById("THDdisableset").setAttribute("THDset",e.target.getAttribute('txhidy15'));
  1255.   } else {
  1256.     document.getElementById("THDdisableset").setAttribute("disabled","disabled");
  1257.     if (!s.isCollapsed){
  1258.       document.getElementById("THDenableset").removeAttribute("disabled");
  1259.       document.getElementById("THDenableset").setAttribute("THDtext",s.getRangeAt(0).toString().trim());
  1260.     }
  1261.   }
  1262. }
  1263. function cmenuEnable(e){
  1264.   var kw = e.target.getAttribute("THDtext").toLowerCase();
  1265.   var toggled = false;
  1266.   for (var j = 0; j < hlkeys.length; ++j){
  1267.     var hlset = hlkeys[j];
  1268.     var kwlist = "|" + hlobj[hlset].keywords.toLowerCase() + "|";
  1269.     if(kwlist.indexOf("|" + kw + "|") > -1){
  1270.       if (hlobj[hlset].enabled == "true") break; // already enabled
  1271.       kwhienabledisable(hlset,true);
  1272.       refreshSetList();
  1273.       toggled = true;
  1274.       break;
  1275.     }
  1276.   }
  1277.   if (toggled == false){
  1278.     if (document.getElementById("thdtopbar").style.display != "block") editKW();
  1279.     if (document.getElementById("thdtopdrop").style.display != "block") thdDropSetList();
  1280.   }
  1281. }
  1282. function cmenuDisable(e){
  1283.   kwhienabledisable(e.target.getAttribute("THDset"),false);
  1284.   refreshSetList();
  1285. }
  1286. function cmenuNewset(e){
  1287.   //TODO - if there's a selection, get it into the form
  1288.   kwhinewset(e,e.target.getAttribute("THDtext"));
  1289. }
  1290.  
  1291. // TESTING ONLY
  1292. async function flushData(){
  1293.   if (!GM4){
  1294.     GM_setValue("kwstyles", "");
  1295.   } else {
  1296.     await GM.setValue("kwstyles", "");
  1297.   }
  1298. }