@ -6,23 +6,23 @@
throw 'The reveal.js Markdown plugin requires marked to be loaded' ;
}
if ( typeof hljs !== 'undefined' ) {
if ( typeof hljs !== 'undefined' ) {
marked . setOptions ( {
highlight : function ( lang , code ) {
return hljs . highlightAuto ( lang , code ) . value ;
highlight : function ( lang , code ) {
return hljs . highlightAuto ( lang , code ) . value ;
}
} ) ;
}
var stripLeadingWhitespace = function ( section ) {
var stripLeadingWhitespace = function ( section ) {
var template = section . querySelector ( 'script' ) ;
// strip leading whitespace so it isn't evaluated as code
var text = ( template || section ) . textContent ;
var leadingWs = text . match ( /^\n?(\s*)/ ) [ 1 ] . length ,
leadingTabs = text . match ( /^\n?(\t*)/ ) [ 1 ] . length ;
var leadingWs = text . match ( /^\n?(\s*)/ ) [ 1 ] . length ,
leadingTabs = text . match ( /^\n?(\t*)/ ) [ 1 ] . length ;
if ( leadingTabs > 0 ) {
text = text . replace ( new RegExp ( '\\n?\\t{' + leadingTabs + '}' , 'g' ) , '\n' ) ;
@ -35,13 +35,20 @@
} ;
var twrap = function ( el ) {
var twrap = function ( el ) {
var content = el . content || el ;
content += el . asideContent ? ( '<aside class="notes" data-markdown>' + el . asideContent + '</aside>' ) : '' ;
if ( el . asideContent ) {
content += '<aside class="notes" data-markdown>' + el . asideContent + '</aside>' ;
}
return '<script type="text/template">' + content + '</script>' ;
} ;
var getForwardedAttributes = function ( section ) {
var getForwardedAttributes = function ( section ) {
var attributes = section . attributes ;
var result = [ ] ;
@ -61,9 +68,10 @@
}
return result . join ( ' ' ) ;
} ;
var slidifyMarkdown = function ( markdown , separator , vertical , notes , attributes ) {
var slidifyMarkdown = function ( markdown , separator , vertical , notes , attributes ) {
separator = separator || '^\n---\n$' ;
notes = notes || 'note:' ;
@ -105,7 +113,7 @@
slide = {
content : content ,
asideContent : asideContent || ""
asideContent : asideContent || ''
} ;
if ( isHorizontal && wasHorizontal ) {
@ -126,9 +134,9 @@
// flatten the hierarchical stack, and insert <section data-markdown> tags
for ( var k = 0 , klen = sectionStack . length ; k < klen ; k ++ ) {
// vertical
if ( sectionStack [ k ] . propertyIsEnumerable ( length ) && typeof sectionStack [ k ] . splice === 'function' ) {
if ( sectionStack [ k ] . propertyIsEnumerable ( length ) && typeof sectionStack [ k ] . splice === 'function' ) {
markdownSections += '<section ' + attributes + '>' +
'<section data-markdown>' + sectionStack [ k ] . map ( twrap ) . join ( '</section><section data-markdown>' ) + '</section>' +
'<section data-markdown>' + sectionStack [ k ] . map ( twrap ) . join ( '</section><section data-markdown>' ) + '</section>' +
'</section>' ;
} else {
markdownSections += '<section ' + attributes + ' data-markdown>' + twrap ( sectionStack [ k ] ) + '</section>' ;
@ -138,7 +146,7 @@
return markdownSections ;
} ;
var querySliding Markdown = function ( ) {
var queryExternal Markdown = function ( ) {
var sections = document . querySelectorAll ( '[data-markdown]' ) ,
section ;
@ -147,22 +155,24 @@
section = sections [ j ] ;
if ( section . getAttribute ( 'data-markdown' ) . length ) {
if ( section . getAttribute ( 'data-markdown' ) . length ) {
var xhr = new XMLHttpRequest ( ) ,
url = section . getAttribute ( 'data-markdown' ) ;
url = section . getAttribute ( 'data-markdown' ) ;
datacharset = section . getAttribute ( 'data-charset' ) ;
datacharset = section . getAttribute ( 'data-charset' ) ;
// see https://developer.mozilla.org/en-US/docs/Web/API/element.getAttribute#Notes
if ( datacharset != null && datacharset != '' ) {
xhr . overrideMimeType ( 'text/html; charset=' + datacharset ) ;
if ( datacharset != null && datacharset != '' ) {
xhr . overrideMimeType ( 'text/html; charset=' + datacharset ) ;
}
xhr . onreadystatechange = function ( ) {
xhr . onreadystatechange = function ( ) {
if ( xhr . readyState === 4 ) {
if ( xhr . status >= 200 && xhr . status < 300 ) {
section . outerHTML = slidifyMarkdown ( xhr . responseText , section . getAttribute ( 'data-separator' ) , section . getAttribute ( 'data-vertical' ) , section . getAttribute ( 'data-notes' ) , getForwardedAttributes ( section ) ) ;
} else {
if ( xhr . status >= 200 && xhr . status < 300 ) {
section . outerHTML = slidifyMarkdown ( xhr . responseText , section . getAttribute ( 'data-separator' ) , section . getAttribute ( 'data-vertical' ) , section . getAttribute ( 'data-notes' ) , getForwardedAttributes ( section ) ) ;
}
else {
section . outerHTML = '<section data-state="alert">ERROR: The attempt to fetch ' + url + ' failed with the HTTP status ' + xhr . status +
'. Check your browser\'s JavaScript console for more details.' +
'<p>Remember that you need to serve the presentation HTML from a HTTP server and the Markdown file must be there too.</p></section>' ;
@ -170,17 +180,19 @@
}
} ;
xhr . open ( 'GET' , url , false ) ;
xhr . open ( 'GET' , url , false ) ;
try {
xhr . send ( ) ;
} catch ( e ) {
alert ( 'Failed to get the Markdown file ' + url + '. Make sure that the presentation and the file are served by a HTTP server and the file can be found there. ' + e ) ;
}
catch ( e ) {
alert ( 'Failed to get the Markdown file ' + url + '. Make sure that the presentation and the file are served by a HTTP server and the file can be found there. ' + e ) ;
}
} else if ( section . getAttribute ( 'data-separator' ) ) {
} else if ( section . getAttribute ( 'data-separator' ) ) {
var markdown = stripLeadingWhitespace ( section ) ;
section . outerHTML = slidifyMarkdown ( markdown , section . getAttribute ( 'data-separator' ) , section . getAttribute ( 'data-vertical' ) , section . getAttribute ( 'data-notes' ) , getForwardedAttributes ( section ) ) ;
var markdown = stripLeadingWhitespace ( section ) ;
section . outerHTML = slidifyMarkdown ( markdown , section . getAttribute ( 'data-separator' ) , section . getAttribute ( 'data-vertical' ) , section . getAttribute ( 'data-notes' ) , getForwardedAttributes ( section ) ) ;
}
}
@ -193,19 +205,19 @@
for ( var j = 0 , jlen = sections . length ; j < jlen ; j ++ ) {
makeHtml ( sections [ j ] ) ;
makeHtml ( sections [ j ] ) ;
}
} ;
var makeHtml = function ( section ) {
var makeHtml = function ( section ) {
var notes = section . querySelector ( 'aside.notes' ) ;
var markdown = stripLeadingWhitespace ( section ) ;
var markdown = stripLeadingWhitespace ( section ) ;
section . innerHTML = marked ( markdown ) ;
section . innerHTML = marked ( markdown ) ;
if ( notes ) {
section . appendChild ( notes ) ;
@ -213,8 +225,7 @@
} ;
querySlidingMarkdown ( ) ;
queryExternalMarkdown ( ) ;
queryMarkdownSlides ( ) ;
} ) ( ) ;