Syntaxify

Universal syntax highlighting

As of 2015-06-24. See the latest version.

You will need to install an extension such as Tampermonkey, Greasemonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Userscripts to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install a user script manager extension to install this script.

(I already have a user script manager, let me install it!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(I already have a user style manager, let me install it!)

// ==UserScript==
// @name Syntaxify
// @description Universal syntax highlighting
// @namespace http://rob-bolton.co.uk
// @version 1.1
// @include http*
// @grant GM_addStyle
// @require http://cdnjs.cloudflare.com/ajax/libs/highlight.js/8.6/highlight.min.js
// ==/UserScript==
//

// HightlightJS CSS
var cssStyle=".hljs{display:block;overflow-x:auto;padding:0.5em;background:#f0f0f0;-webkit-text-size-adjust:none}.hljs,.hljs-subst,.hljs-tag .hljs-title,.nginx .hljs-title{color:black}.hljs-string,.hljs-title,.hljs-constant,.hljs-parent,.hljs-tag .hljs-value,.hljs-rule .hljs-value,.hljs-preprocessor,.hljs-pragma,.hljs-name,.haml .hljs-symbol,.ruby .hljs-symbol,.ruby .hljs-symbol .hljs-string,.hljs-template_tag,.django .hljs-variable,.smalltalk .hljs-class,.hljs-addition,.hljs-flow,.hljs-stream,.bash .hljs-variable,.pf .hljs-variable,.apache .hljs-tag,.apache .hljs-cbracket,.tex .hljs-command,.tex .hljs-special,.erlang_repl .hljs-function_or_atom,.asciidoc .hljs-header,.markdown .hljs-header,.coffeescript .hljs-attribute,.tp .hljs-variable{color:#800}.smartquote,.hljs-comment,.hljs-annotation,.diff .hljs-header,.hljs-chunk,.asciidoc .hljs-blockquote,.markdown .hljs-blockquote{color:#888}.hljs-number,.hljs-date,.hljs-regexp,.hljs-literal,.hljs-hexcolor,.smalltalk .hljs-symbol,.smalltalk .hljs-char,.go .hljs-constant,.hljs-change,.lasso .hljs-variable,.makefile .hljs-variable,.asciidoc .hljs-bullet,.markdown .hljs-bullet,.asciidoc .hljs-link_url,.markdown .hljs-link_url{color:#080}.hljs-label,.ruby .hljs-string,.hljs-decorator,.hljs-filter .hljs-argument,.hljs-localvars,.hljs-array,.hljs-attr_selector,.hljs-important,.hljs-pseudo,.hljs-pi,.haml .hljs-bullet,.hljs-doctype,.hljs-deletion,.hljs-envvar,.hljs-shebang,.apache .hljs-sqbracket,.nginx .hljs-built_in,.tex .hljs-formula,.erlang_repl .hljs-reserved,.hljs-prompt,.asciidoc .hljs-link_label,.markdown .hljs-link_label,.vhdl .hljs-attribute,.clojure .hljs-attribute,.asciidoc .hljs-attribute,.lasso .hljs-attribute,.coffeescript .hljs-property,.hljs-phony{color:#88f}.hljs-keyword,.hljs-id,.hljs-title,.hljs-built_in,.css .hljs-tag,.hljs-doctag,.smalltalk .hljs-class,.hljs-winutils,.bash .hljs-variable,.pf .hljs-variable,.apache .hljs-tag,.hljs-type,.hljs-typename,.tex .hljs-command,.asciidoc .hljs-strong,.markdown .hljs-strong,.hljs-request,.hljs-status,.tp .hljs-data,.tp .hljs-io{font-weight:bold}.asciidoc .hljs-emphasis,.markdown .hljs-emphasis,.tp .hljs-units{font-style:italic}.nginx .hljs-built_in{font-weight:normal}.coffeescript .javascript,.javascript .xml,.lasso .markup,.tex .hljs-formula,.xml .javascript,.xml .vbscript,.xml .css,.xml .hljs-cdata{opacity:0.5}";
var tagsToSearch = ["pre", "code"];

GM_addStyle(cssStyle);

var menuCounter = 0;

function wrapSelection() {
	var selection = window.getSelection();
	if(selection.rangeCount && tagsToSearch.indexOf(selection.anchorNode.nodeName) == -1) {
		range = selection.getRangeAt(0);
		if(range) {
			range.surroundContents(new CodeContainer());
		}
	}
}

function CodeContainer() {
	var container = document.createElement("code");
	var menu = addSyntaxMenuForNode(container);
	
	var menuItem = document.createElement("menuitem");
	menuItem.setAttribute("label", "Unwrap code");
	menuItem.addEventListener("click", function(){
		var parent = container.parentNode;
		var newTextNode = document.createTextNode(container.textContent);
		parent.insertBefore(newTextNode, container);
		parent.removeChild(container);
	});
	
	menu.appendChild(menuItem);
	
	return container;
}

function SyntaxifyMenu(node) {
	var modified = false;
	var originalNode;
	var currentNode = node;
	var menu;
	
	var nodeMenuId = node.getAttribute("contextmenu");
	if(!nodeMenuId) {
		menu = document.createElement("menu");
		menu.setAttribute("type", "context");
		menu.setAttribute("id", "SyntaxifyMenu" + menuCounter++);
	} else {
		menu = document.getElementById(nodeMenuId);
	}
	
	var menuItem = document.createElement("menuitem");
	menuItem.setAttribute("label", "Syntaxify - Highlight");
	
	var toggleHighlight = function() {
		if(modified) {
			var parent = currentNode.parentNode;
			parent.insertBefore(originalNode, currentNode);
			parent.removeChild(currentNode);
			currentNode = originalNode;
			menuItem.setAttribute("label", "Syntaxify - Highlight");
			modified = false;
		} else {
			originalNode = currentNode.cloneNode(true);
			hljs.highlightBlock(currentNode);
			menuItem.setAttribute("label", "Syntaxify - UnHighlight");
			modified = true;
		}
	}
	
	
	menuItem.addEventListener("click", toggleHighlight, false);
	
	menu.appendChild(menuItem);
	return menu;
}

function addSyntaxMenuForNode(node) {
	var menu = new SyntaxifyMenu(node);
	document.body.appendChild(menu);
	node.setAttribute("contextmenu", menu.getAttribute("id"));
	return menu;
}

var syntaxableElements = [];
for(var i=0; i<tagsToSearch.length; i++) {
	var tagsFound = document.getElementsByTagName(tagsToSearch[i]);
	for(var j=0; j<tagsFound.length; j++) {
		syntaxableElements.push(tagsFound.item(j));
	}
}

if(syntaxableElements) {
	for(var i=0; i<(syntaxableElements.length || 0); i++) {
		addSyntaxMenuForNode(syntaxableElements[i]);
	}
}

var body = document.body;
var bodyMenu;
var bodyMenuId = body.getAttribute("contextmenu");
if(!bodyMenuId) {
	bodyMenu = document.createElement("menu");
	bodyMenu.setAttribute("type", "context");
	bodyMenu.setAttribute("id", "SyntaxifyMenuMain");
} else {
	bodyMenu = document.getElementById(bodyMenuId);
}

var wrapItem = document.createElement("menuitem");
wrapItem.setAttribute("label", "Syntaxify - Wrap with <code>");
wrapItem.addEventListener("click", wrapSelection, false);

bodyMenu.appendChild(wrapItem);
body.appendChild(bodyMenu);
body.setAttribute("contextmenu", bodyMenu.getAttribute("id"));