Automatically creates a table of contents for all HTML-headers on a web page.
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// ==UserScript== // @name AutoTOC // @namespace http://runeskaug.com/greasemonkey // @description Automatically creates a table of contents for all HTML-headers on a web page. // @author Rune Skaug ([email protected]) // @include http://* // @include https://* // @version 1.7.66 // @grant GM_registerMenuCommand // @homepageURL https://codeberg.org/izzy/userscripts // @released 2005-07-06 // @updated 2020-01-20 // @compatible Greasemonkey, Opera 8/9 // // Change history (main changes): // // 1.0 - Basic version // 1.1 - Adds Hide TOC button // 1.2 - Only show visible headings (Firefox) // - Work around Firefox rendering bugs // - Adds Menu item: AutoTOC: Toggle display (Firefox) // 1.3 - Sets a session cookie for TOC hiding (per domain) // 1.4 - Disables adding of menu item. // - Choose your own string pattern to match (RXmatch) // 1.5 - Minor adjustments for GM 0.6/FF1.5 // - Moved closebutton to the left // - Flash on select // 1.6 - Xpath search replaces treewalker, FF1,1.5,Opera9 // 1.7 - Minor fixes, screen-only stylesheet // 1.7.66 - integrated my previously separate UserStyle to hide the TOC unless hovered (Izzy) // // @ujs:category browser: enhancements // @ujs:published 2005-07-06 13:03 // @ujs:modified 2005-07-06 17:31 // @ujs:documentation http://userjs.org/scripts/browser/enhancements/auto-toc // @ujs:download http://userjs.org/scripts/download/browser/enhancements/auto-toc.user.js // @ujs:download.gm http://userjs.org/scripts/download/browser/enhancements/auto-toc.user.js // ==/UserScript== /* * Creative Commons Attribution License * http://creativecommons.org/licenses/by/2.5/ */ (function() { // text constants var fullTOCText = "Table of Contents"; var hideBtnText = "\u00a0X\u00a0"; var RXmatch = /^h[1-4]$/i; // regexp var XPmatch = "//h1|//h2|//h3|//h4"; // xpath //set the optional behaviour of the TOC box // if true, resets it to its initial state after you have selected a header - false does not reset it var resetSelect = true; // if true, shows a "Hide TOC"/close button on the left side of the bar var showHide = true; // if true, hides the TOC for all pages on current site var useCookie = true; // if true, adds menu item (Toggle TOC) var addMenuItem = true; function f() { //only on (X)HTML pages containing at least one heading - excludes XML files, text files, plugins and images (displayed using minimal HTML) if (document.getElementsByTagName("html").length && ( document.getElementsByTagName('h1').length || document.getElementsByTagName('h2').length || document.getElementsByTagName('h3').length || document.getElementsByTagName('h4').length ) && (!useCookie || (useCookie && getCookie('autotoc_hide')!='true'))) { var aHs = getHTMLHeadings(); if (aHs.length>1) { // HTML document, more than one heading. var body = document.getElementsByTagName('body')[0]; body.style.marginBottom = "24px !important"; addCSS( '@media print { #js-toc {display: none; visibility: hidden; }}\n'+ '@media screen { #js-toc {position: fixed; left: 0; right: 0; top: auto; bottom: 0; width: 100%; display: block; border-top: 1px solid #777; background: #ddd; margin: 0; padding: 3px; z-index: 9999; }\n'+ '#js-toc select { font: 8pt verdana, sans-serif; margin: 0; margin-left:5px; background: #fff; color: #000; float: left; padding: 0; vertical-align: bottom;}\n'+ '#js-toc option { font: 8pt verdana, sans-serif; color: #000; }\n'+ '#js-toc .hideBtn { font: bold 8pt verdana, sans-serif !important; float: left; margin-left: 2px; margin-right: 2px; padding: 1px; border: 1px solid #999; background: #e7e7e7; }\n'+ '#js-toc .hideBtn a { color: #333; text-decoration: none; background: transparent;} #js-toc .hideBtn a:hover { color: #333; text-decoration: none; background: transparent;}\n'+ '#js-toc:not(:hover) { height: 0px !important; width: 0px !important; -moz-border-radius: 5px !important; background-color: #00f !important; } }' ); // Browser sniff++ - due to rendering bug(s) in FF1.0 var toc = document.createElement(window.opera||showHide?'tocdiv':'div'); toc.id = 'js-toc'; if (showHide) { var hideDiv = document.createElement('div'); hideDiv.setAttribute('class','hideBtn'); var hideLink = document.createElement('a'); hideLink.setAttribute("href","#"); hideLink.setAttribute("onclick",useCookie?"document.getElementById('js-toc').style.display = 'none'; document.cookie = 'autotoc_hide=true; path=/'; return false;":"document.getElementById('js-toc').style.display = 'none';"); hideLink.appendChild(document.createTextNode(hideBtnText)); hideDiv.appendChild(hideLink); toc.appendChild(hideDiv); } tocSelect = document.createElement('select'); tocSelect.setAttribute("onchange", "if(this.value){function flash(rep,delay) { for (var i=rep;i>0;i--) {window.setTimeout('el.style.background=\"#ff7\";',delay*i*2);window.setTimeout('el.style.background=elbg',delay*((i*2)+1));};}; elid = this.value; el=document.getElementById(elid); elbg=el.style.background; location.href='#'+elid; flash(5,100);"+(resetSelect?"this.selectedIndex=0;}":"}")); tocSelect.id = 'toc-select'; tocEmptyOption = document.createElement('option'); tocEmptyOption.setAttribute('value',''); tocEmptyOption.appendChild(document.createTextNode(fullTOCText)); tocSelect.appendChild(tocEmptyOption); toc.appendChild(tocSelect); document.body.appendChild(toc); for (var i=0,aH;aH=aHs[i];i++) { if (aH.offsetWidth) { op = document.createElement("option"); op.appendChild(document.createTextNode(gs(aH.tagName)+getInnerText(aH).substring(0,100))); var refID = aH.id ? aH.id : aH.tagName+'-'+(i*1+1); op.setAttribute("value", refID); document.getElementById("toc-select").appendChild(op); aH.id = refID; } } } } }; function autoTOC_toggleDisplay() { if (document.getElementById('js-toc')) { // toc-bar exists if (document.getElementById('js-toc').style.display == 'none') { document.getElementById('js-toc').style.display = 'block'; if (useCookie) {document.cookie = 'autotoc_hide=; path=/';} } else { document.getElementById('js-toc').style.display = 'none'; if (useCookie) {document.cookie = 'autotoc_hide=true; path=/';} }; } else { // toc-bar not created yet, clear hide-cookie and run main script if (useCookie) {document.cookie = 'autotoc_hide=; path=/';} f(); } } function getHTMLHeadings() { function acceptNode(node) { if (node.tagName.match(RXmatch)) { if (node.value+''!='') { return NodeFilter.FILTER_ACCEPT; } } return NodeFilter.FILTER_SKIP; } outArray = new Array(); // XPath if (document.evaluate) { var nodes = document.evaluate(XPmatch, document, null, XPathResult.ANY_TYPE, null); var thisHeading = nodes.iterateNext(); var j = 0; while (thisHeading) { if (thisHeading.textContent+''!='') { outArray[j++] = thisHeading; } thisHeading = nodes.iterateNext(); } } // document.getElementsByTagName - slow! :) else { var els = document.getElementsByTagName("*"); var j = 0; for (var i=0,el;el=els[i];i++) { if (el.tagName.match(RXmatch)) outArray[j++] = el; } } return outArray; } function addCSS(css) { var head, styleLink; head = document.getElementsByTagName('head')[0]; if (!head) { return; } styleLink = document.createElement('link'); styleLink.setAttribute('rel','stylesheet'); styleLink.setAttribute('type','text/css'); styleLink.setAttribute('href','data:text/css,'+escape(css)); head.appendChild(styleLink); } function gs(s){ s = s.toLowerCase(); var ret = ""; for (var i=1; i<(s.substring(1)*1);i++) { ret = ret + "\u00a0 \u00a0 "; } return ret; } function getInnerText(el) { var s=''; for (var i=0,node; node=el.childNodes[i]; i++) { if (node.nodeType == 1) s += getInnerText(node); else if (node.nodeType == 3) s += node.nodeValue; } return s; } function getCookie(cname) { var namesep = cname + "="; var ca = document.cookie.split(';'); for(var i=0, c; c=ca[i]; i++) { c = c.replace(/^\s*|\s*$/g,""); if (c.indexOf(namesep) == 0) { return c.substring(namesep.length,c.length); } } return null; } // main() if (!window.opera && addMenuItem) { GM_registerMenuCommand('AutoTOC: Toggle display', autoTOC_toggleDisplay); } f(); })();
