From f210e7b1b5f0dceb610cf0355b689ed6a16624e1 Mon Sep 17 00:00:00 2001 From: Hakim El Hattab Date: Sun, 28 Apr 2013 14:12:31 -0400 Subject: [PATCH] avoid errors in old ie from code highlighting --- plugin/highlight/highlight.js | 26 ++++++++++++++++---------- 1 file changed, 16 insertions(+), 10 deletions(-) diff --git a/plugin/highlight/highlight.js b/plugin/highlight/highlight.js index af769db..6756359 100644 --- a/plugin/highlight/highlight.js +++ b/plugin/highlight/highlight.js @@ -1,16 +1,22 @@ // START CUSTOM REVEAL.JS INTEGRATION (function() { - [].slice.call( document.querySelectorAll( 'pre code' ) ).forEach( function( element ) { - // trim whitespace if data-trim attribute is present - if( element.hasAttribute( 'data-trim' ) && typeof element.innerHTML.trim === 'function' ) { - element.innerHTML = element.innerHTML.trim(); - } + if( typeof window.addEventListener === 'function' ) { + var hljs_nodes = document.querySelectorAll( 'pre code' ); - // re-highlight when focus is lost (for edited code) - element.addEventListener( 'focusout', function( event ) { - hljs.highlightBlock( event.currentTarget ); - }, false ); - } ); + for( var i = 0, len = hljs_nodes.length; i < len; i++ ) { + var element = hljs_nodes[i]; + + // trim whitespace if data-trim attribute is present + if( element.hasAttribute( 'data-trim' ) && typeof element.innerHTML.trim === 'function' ) { + element.innerHTML = element.innerHTML.trim(); + } + + // re-highlight when focus is lost (for edited code) + element.addEventListener( 'focusout', function( event ) { + hljs.highlightBlock( event.currentTarget ); + }, false ); + } + } })(); // END CUSTOM REVEAL.JS INTEGRATION