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TiddlyWiki5/plugins/tiddlywiki/highlight/highlightblock.js
James Welford Anderson 903f7db0b2 update highlight plugin to latest ver.
split the latter half of highlight.pack.js into a separate file which
registers all the languages and exports hljs. this is for nodejs
compatibility and mimics the way the highlightjs module works in nodejs.
2015-01-10 08:02:54 +09:00

39 lines
1.2 KiB
JavaScript

/*\
title: $:/plugins/tiddlywiki/highlight/highlightblock.js
type: application/javascript
module-type: widget
Wraps up the fenced code blocks parser for highlight and use in TiddlyWiki5
\*/
(function() {
/*jslint node: true, browser: true */
/*global $tw: false */
"use strict";
var CodeBlockWidget = require("$:/core/modules/widgets/codeblock.js").codeblock;
//register languages requires hljs for us
var hljs = require("$:/plugins/tiddlywiki/highlight/registerlanguages.js").hljs;
hljs.configure({tabReplace: " "});
CodeBlockWidget.prototype.postRender = function() {
var domNode = this.domNodes[0];
if($tw.browser && this.document !== $tw.fakeDocument && this.language) {
domNode.className = this.language.toLowerCase();
hljs.highlightBlock(domNode);
}
else if(!$tw.browser && this.language && this.language.indexOf("/") == -1 ){
try{
domNode.className = this.language.toLowerCase() + " hljs";
domNode.children[0].innerHTML = hljs.fixMarkup(hljs.highlight(this.language, this.getAttribute("code")).value);
}
catch(err) {
//can't easily tell if a language is registered or not in the packed version of hightlight.js
//so we silently fail and the codeblock remains unchanged
}
}
};
})();