HackMD/public/js/extra.js

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JavaScript
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//auto update last change
var createtime = null;
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var lastchangetime = null;
var lastchangeui = {
status: $(".ui-status-lastchange"),
time: $(".ui-lastchange"),
user: $(".ui-lastchangeuser"),
nouser: $(".ui-no-lastchangeuser")
}
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function updateLastChange() {
if (!lastchangeui) return;
if (createtime) {
if (createtime && !lastchangetime) {
lastchangeui.status.text('created');
} else {
lastchangeui.status.text('changed');
}
var time = lastchangetime || createtime;
lastchangeui.time.html(moment(time).fromNow());
lastchangeui.time.attr('title', moment(time).format('llll'));
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}
}
setInterval(updateLastChange, 60000);
var lastchangeuser = null;
var lastchangeuserprofile = null;
function updateLastChangeUser() {
if (lastchangeui) {
if (lastchangeuser && lastchangeuserprofile) {
var icon = lastchangeui.user.children('i');
icon.attr('title', lastchangeuserprofile.name).tooltip('fixTitle');
if (lastchangeuserprofile.photo)
icon.attr('style', 'background-image:url(' + lastchangeuserprofile.photo + ')');
lastchangeui.user.show();
lastchangeui.nouser.hide();
} else {
lastchangeui.user.hide();
lastchangeui.nouser.show();
}
}
}
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//get title
function getTitle(view) {
var title = "";
if (md && md.meta && md.meta.title && (typeof md.meta.title == "string" || typeof md.meta.title == "number")) {
title = md.meta.title;
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} else {
var h1s = view.find("h1");
if (h1s.length > 0) {
title = h1s.first().text();
} else {
title = null;
}
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}
return title;
}
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//render title
function renderTitle(view) {
var title = getTitle(view);
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if (title) {
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title += ' - HackMD';
} else {
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title = 'HackMD - Collaborative markdown notes';
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}
return title;
}
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//render filename
function renderFilename(view) {
var filename = getTitle(view);
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if (!filename) {
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filename = 'Untitled';
}
return filename;
}
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function slugifyWithUTF8(text) {
var newText = S(text.toLowerCase()).trim().stripTags().dasherize().s;
newText = newText.replace(/([\!\"\#\$\%\&\'\(\)\*\+\,\.\/\:\;\<\=\>\?\@\[\\\]\^\`\{\|\}\~])/g, '');
return newText;
}
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function isValidURL(str) {
var pattern = new RegExp('^(https?:\\/\\/)?' + // protocol
'((([a-z\\d]([a-z\\d-]*[a-z\\d])*)\\.)+[a-z]{2,}|' + // domain name
'((\\d{1,3}\\.){3}\\d{1,3}))' + // OR ip (v4) address
'(\\:\\d+)?(\\/[-a-z\\d%_.~+]*)*' + // port and path
'(\\?[;&a-z\\d%_.~+=-]*)?' + // query string
'(\\#[-a-z\\d_]*)?$', 'i'); // fragment locator
if (!pattern.test(str)) {
return false;
} else {
return true;
}
}
//parse meta
function parseMeta(md, edit, view, toc, tocAffix) {
var lang = null;
var dir = null;
var breaks = true;
if (md && md.meta) {
var meta = md.meta;
lang = meta.lang;
dir = meta.dir;
breaks = meta.breaks;
}
//text language
if (lang && typeof lang == "string") {
view.attr('lang', lang);
toc.attr('lang', lang);
tocAffix.attr('lang', lang);
if (edit)
edit.attr('lang', lang);
} else {
view.removeAttr('lang');
toc.removeAttr('lang');
tocAffix.removeAttr('lang');
if (edit)
edit.removeAttr('lang', lang);
}
//text direction
if (dir && typeof dir == "string") {
view.attr('dir', dir);
toc.attr('dir', dir);
tocAffix.attr('dir', dir);
} else {
view.removeAttr('dir');
toc.removeAttr('dir');
tocAffix.removeAttr('dir');
}
//breaks
if (typeof breaks === 'boolean' && !breaks) {
md.options.breaks = false;
} else {
md.options.breaks = true;
}
}
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var viewAjaxCallback = null;
//regex for extra tags
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var spaceregex = /\s*/;
var notinhtmltagregex = /(?![^<]*>|[^<>]*<\/)/;
var coloregex = /\[color=([#|\(|\)|\s|\,|\w]*?)\]/;
coloregex = new RegExp(coloregex.source + notinhtmltagregex.source, "g");
var nameregex = /\[name=(.*?)\]/;
var timeregex = /\[time=([:|,|+|-|\(|\)|\s|\w]*?)\]/;
var nameandtimeregex = new RegExp(nameregex.source + spaceregex.source + timeregex.source + notinhtmltagregex.source, "g");
nameregex = new RegExp(nameregex.source + notinhtmltagregex.source, "g");
timeregex = new RegExp(timeregex.source + notinhtmltagregex.source, "g");
function replaceExtraTags(html) {
html = html.replace(coloregex, '<span class="color" data-color="$1"></span>');
html = html.replace(nameandtimeregex, '<small><i class="fa fa-user"></i> $1 <i class="fa fa-clock-o"></i> $2</small>');
html = html.replace(nameregex, '<small><i class="fa fa-user"></i> $1</small>');
html = html.replace(timeregex, '<small><i class="fa fa-clock-o"></i> $1</small>');
return html;
}
if (typeof mermaid !== 'undefined' && mermaid) mermaid.startOnLoad = false;
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//dynamic event or object binding here
function finishView(view) {
//todo list
var lis = view.find('li.raw').removeClass("raw").sortByDepth().toArray();
for (var i = 0; i < lis.length; i++) {
var li = lis[i];
var html = $(li).clone()[0].innerHTML;
var p = $(li).children('p');
if (p.length == 1) {
html = p.html();
li = p[0];
}
html = replaceExtraTags(html);
li.innerHTML = html;
var disabled = 'disabled';
if(typeof editor !== 'undefined' && havePermission())
disabled = '';
if (/^\s*\[[x ]\]\s*/.test(html)) {
li.innerHTML = html.replace(/^\s*\[ \]\s*/, '<input type="checkbox" class="task-list-item-checkbox "' + disabled + '><label></label>')
.replace(/^\s*\[x\]\s*/, '<input type="checkbox" class="task-list-item-checkbox" checked ' + disabled + '><label></label>');
lis[i].setAttribute('class', 'task-list-item');
}
if (typeof editor !== 'undefined' && havePermission())
$(li).find('input').change(toggleTodoEvent);
//color tag in list will convert it to tag icon with color
var tag_color = $(li).closest('ul').find(".color");
tag_color.each(function (key, value) {
$(value).addClass('fa fa-tag').css('color', $(value).attr('data-color'));
});
}
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//youtube
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view.find(".youtube.raw").removeClass("raw")
.click(function () {
imgPlayiframe(this, '//www.youtube.com/embed/');
});
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//vimeo
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view.find(".vimeo.raw").removeClass("raw")
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.click(function () {
imgPlayiframe(this, '//player.vimeo.com/video/');
})
.each(function (key, value) {
$.ajax({
type: 'GET',
url: '//vimeo.com/api/v2/video/' + $(value).attr('data-videoid') + '.json',
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jsonp: 'callback',
dataType: 'jsonp',
success: function (data) {
var thumbnail_src = data[0].thumbnail_large;
var image = '<img src="' + thumbnail_src + '" />';
$(value).prepend(image);
if(viewAjaxCallback) viewAjaxCallback();
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}
});
});
//gist
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view.find("code[data-gist-id]").each(function (key, value) {
if ($(value).children().length == 0)
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$(value).gist(viewAjaxCallback);
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});
//emojify
try {
emojify.run(view[0]);
} catch (err) {
console.warn(err);
}
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//mathjax
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var mathjaxdivs = view.find('.mathjax.raw').removeClass("raw").toArray();
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try {
if (mathjaxdivs.length > 1) {
MathJax.Hub.Queue(["Typeset", MathJax.Hub, mathjaxdivs]);
MathJax.Hub.Queue(viewAjaxCallback);
} else if (mathjaxdivs.length > 0) {
MathJax.Hub.Queue(["Typeset", MathJax.Hub, mathjaxdivs[0]]);
MathJax.Hub.Queue(viewAjaxCallback);
}
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} catch (err) {}
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//sequence diagram
var sequences = view.find(".sequence-diagram.raw").removeClass("raw");
sequences.each(function (key, value) {
try {
var $value = $(value);
var $ele = $(value).parent().parent();
var sequence = $value;
sequence.sequenceDiagram({
theme: 'simple'
});
$ele.addClass('sequence-diagram');
$value.children().unwrap().unwrap();
var svg = $ele.find('> svg');
svg[0].setAttribute('viewBox', '0 0 ' + svg.attr('width') + ' ' + svg.attr('height'));
svg[0].setAttribute('preserveAspectRatio', 'xMidYMid meet');
} catch (err) {
console.warn(err);
}
});
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//flowchart
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var flow = view.find(".flow-chart.raw").removeClass("raw");
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flow.each(function (key, value) {
try {
var $value = $(value);
var $ele = $(value).parent().parent();
var chart = flowchart.parse($value.text());
$value.html('');
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chart.drawSVG(value, {
'line-width': 2,
'fill': 'none',
'font-size': '16px',
'font-family': "'Andale Mono', monospace"
});
$ele.addClass('flow-chart');
$value.children().unwrap().unwrap();
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} catch (err) {
console.warn(err);
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}
});
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//graphviz
var graphvizs = view.find(".graphviz.raw").removeClass("raw");
graphvizs.each(function (key, value) {
try {
var $value = $(value);
var $ele = $(value).parent().parent();
var graphviz = Viz($value.text());
$value.html(graphviz);
$ele.addClass('graphviz');
$value.children().unwrap().unwrap();
} catch (err) {
console.warn(err);
}
});
//mermaid
var mermaids = view.find(".mermaid.raw").removeClass("raw");
mermaids.each(function (key, value) {
try {
var $value = $(value);
var $ele = $(value).parent().parent();
var mermaidError = null;
mermaid.parseError = function (err, hash) {
mermaidError = err;
};
if (mermaidAPI.parse($value.text())) {
$ele.addClass('mermaid');
$ele.html($value.text());
mermaid.init(undefined, $ele);
} else {
console.warn(mermaidError);
}
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} catch (err) {
console.warn(err);
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}
});
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//image href new window(emoji not included)
var images = view.find("img.raw[src]").removeClass("raw");
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images.each(function (key, value) {
// if it's already wrapped by link, then ignore
var $value = $(value);
if ($value.parent()[0].nodeName === 'A') return;
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var src = $(value).attr('src');
var a = $('<a>');
if (src) {
a.attr('href', src);
a.attr('target', "_blank");
}
var clone = $value.clone();
clone[0].onload = function (e) {
if(viewAjaxCallback) viewAjaxCallback();
};
a.html(clone);
$value.replaceWith(a);
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});
//blockquote
var blockquote = view.find("blockquote.raw").removeClass("raw");
var blockquote_p = blockquote.find("p");
blockquote_p.each(function (key, value) {
var html = $(value).html();
html = replaceExtraTags(html);
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$(value).html(html);
});
//color tag in blockquote will change its left border color
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var blockquote_color = blockquote.find(".color");
blockquote_color.each(function (key, value) {
$(value).closest("blockquote").css('border-left-color', $(value).attr('data-color'));
});
//slideshare
view.find(".slideshare.raw").removeClass("raw")
.each(function (key, value) {
$.ajax({
type: 'GET',
url: '//www.slideshare.net/api/oembed/2?url=http://www.slideshare.net/' + $(value).attr('data-slideshareid') + '&format=json',
jsonp: 'callback',
dataType: 'jsonp',
success: function (data) {
var $html = $(data.html);
var iframe = $html.closest('iframe');
var caption = $html.closest('div');
var inner = $('<div class="inner"></div>').append(iframe);
var height = iframe.attr('height');
var width = iframe.attr('width');
var ratio = (height / width) * 100;
inner.css('padding-bottom', ratio + '%');
$(value).html(inner).append(caption);
if(viewAjaxCallback) viewAjaxCallback();
}
});
});
//speakerdeck
view.find(".speakerdeck.raw").removeClass("raw")
.each(function (key, value) {
var url = 'https://speakerdeck.com/oembed.json?url=https%3A%2F%2Fspeakerdeck.com%2F' + encodeURIComponent($(value).attr('data-speakerdeckid'));
//use yql because speakerdeck not support jsonp
$.ajax({
url: 'https://query.yahooapis.com/v1/public/yql',
data: {
q: "select * from json where url ='" + url + "'",
format: "json"
},
dataType: "jsonp",
success: function (data) {
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if (!data.query || !data.query.results) return;
var json = data.query.results.json;
var html = json.html;
var ratio = json.height / json.width;
$(value).html(html);
var iframe = $(value).children('iframe');
var src = iframe.attr('src');
if (src.indexOf('//') == 0)
iframe.attr('src', 'https:' + src);
var inner = $('<div class="inner"></div>').append(iframe);
var height = iframe.attr('height');
var width = iframe.attr('width');
var ratio = (height / width) * 100;
inner.css('padding-bottom', ratio + '%');
$(value).html(inner);
if(viewAjaxCallback) viewAjaxCallback();
}
});
});
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//pdf
view.find(".pdf.raw").removeClass("raw")
.each(function (key, value) {
var url = $(value).attr('data-pdfurl');
var inner = $('<div></div>');
$(this).append(inner);
PDFObject.embed(url, inner, {
height: '400px'
});
});
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//render title
document.title = renderTitle(view);
}
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//only static transform should be here
function postProcess(code) {
var result = $('<div>' + code + '</div>');
//link should open in new window or tab
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result.find('a:not([href^="#"]):not([target])').attr('target', '_blank');
//update continue line numbers
var linenumberdivs = result.find('.gutter.linenumber').toArray();
for (var i = 0; i < linenumberdivs.length; i++) {
if ($(linenumberdivs[i]).hasClass('continue')) {
var startnumber = linenumberdivs[i - 1] ? parseInt($(linenumberdivs[i - 1]).find('> span').last().attr('data-linenumber')) : 0;
$(linenumberdivs[i]).find('> span').each(function(key, value) {
$(value).attr('data-linenumber', startnumber + key + 1);
});
}
}
return result;
}
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function generateCleanHTML(view) {
var src = view.clone();
var eles = src.find('*');
//remove syncscroll parts
eles.removeClass('part');
src.find('*[class=""]').removeAttr('class');
eles.removeAttr('data-startline data-endline');
eles.find("a[href^='#'][smoothhashscroll]").removeAttr('smoothhashscroll');
//remove gist content
src.find("code[data-gist-id]").children().remove();
//disable todo list
src.find("input.task-list-item-checkbox").attr('disabled', '');
//replace emoji image path
src.find("img.emoji").each(function (key, value) {
var name = $(value).attr('alt');
name = name.substr(1);
name = name.slice(0, name.length - 1);
$(value).attr('src', 'https://www.tortue.me/emoji/' + name + '.png');
});
//replace video to iframe
src.find("div[data-videoid]").each(function (key, value) {
var id = $(value).attr('data-videoid');
var style = $(value).attr('style');
var url = null;
if ($(value).hasClass('youtube')) {
url = 'https://www.youtube.com/embed/';
} else if ($(value).hasClass('vimeo')) {
url = 'https://player.vimeo.com/video/';
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}
if (url) {
var iframe = $('<iframe frameborder="0" webkitallowfullscreen mozallowfullscreen allowfullscreen></iframe>');
iframe.attr('src', url + id);
iframe.attr('style', style);
$(value).html(iframe);
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}
});
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return src;
}
function exportToRawHTML(view) {
var filename = renderFilename(ui.area.markdown) + '.html';
var src = generateCleanHTML(view);
$(src).find('a.anchor').remove();
var html = src[0].outerHTML;
var blob = new Blob([html], {
type: "text/html;charset=utf-8"
});
saveAs(blob, filename);
}
//extract markdown body to html and compile to template
function exportToHTML(view) {
var title = renderTitle(ui.area.markdown);
var filename = renderFilename(ui.area.markdown) + '.html';
var src = generateCleanHTML(view);
//generate toc
var toc = $('#toc').clone();
toc.find('*').removeClass('active');
var tocAffix = $('#toc-affix').clone();
tocAffix.find('*').removeClass('active');
//generate html via template
$.get(serverurl + '/css/html.min.css', function (css) {
$.get(serverurl + '/views/html.hbs', function (data) {
var template = Handlebars.compile(data);
var context = {
url: serverurl,
title: title,
css: css,
html: src[0].outerHTML,
toc: toc.html(),
'toc-affix': tocAffix.html(),
lang: (md && md.meta && md.meta.lang) ? 'lang="' + md.meta.lang + '"' : null,
dir: (md && md.meta && md.meta.dir) ? 'dir="' + md.meta.dir + '"' : null
};
var html = template(context);
// console.log(html);
var blob = new Blob([html], {
type: "text/html;charset=utf-8"
});
saveAs(blob, filename);
});
});
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}
//jQuery sortByDepth
$.fn.sortByDepth = function () {
var ar = this.map(function () {
return {
length: $(this).parents().length,
elt: this
}
}).get(),
result = [],
i = ar.length;
ar.sort(function (a, b) {
return a.length - b.length;
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});
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while (i--) {
result.push(ar[i].elt);
}
return $(result);
};
function toggleTodoEvent(e) {
var startline = $(this).closest('li').attr('data-startline') - 1;
var line = editor.getLine(startline);
var matches = line.match(/^[>\s]*[\-\+\*]\s\[([x ])\]/);
if (matches && matches.length >= 2) {
var checked = null;
if (matches[1] == 'x')
checked = true;
else if (matches[1] == ' ')
checked = false;
var replacements = matches[0].match(/(^[>\s]*[\-\+\*]\s\[)([x ])(\])/);
editor.replaceRange(checked ? ' ' : 'x', {
line: startline,
ch: replacements[1].length
}, {
line: startline,
ch: replacements[1].length + 1
}, '+input');
}
}
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//remove hash
function removeHash() {
history.pushState("", document.title, window.location.pathname + window.location.search);
}
//toc
function generateToc(id) {
var target = $('#' + id);
target.html('');
new Toc('doc', {
'level': 3,
'top': -1,
'class': 'toc',
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'ulClass': 'nav',
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'targetId': id
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});
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if (target.text() == 'undefined')
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target.html('');
var backtotop = $('<a class="back-to-top" href="#">Back to top</a>');
var gotobottom = $('<a class="go-to-bottom" href="#">Go to bottom</a>');
backtotop.click(function (e) {
e.preventDefault();
e.stopPropagation();
if (scrollToTop)
scrollToTop();
removeHash();
});
gotobottom.click(function (e) {
e.preventDefault();
e.stopPropagation();
if (scrollToBottom)
scrollToBottom();
removeHash();
});
target.append(backtotop).append(gotobottom);
}
//smooth all hash trigger scrolling
function smoothHashScroll() {
var hashElements = $("a[href^='#']:not([smoothhashscroll])").toArray();
for (var i = 0; i < hashElements.length; i++) {
var element = hashElements[i];
var $element = $(element);
var hash = element.hash;
if (hash) {
$element.on('click', function (e) {
// store hash
var hash = decodeURIComponent(this.hash);
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if ($(hash).length <= 0) return;
// prevent default anchor click behavior
e.preventDefault();
// animate
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$('body, html').stop(true, true).animate({
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scrollTop: $(hash).offset().top
}, 100, "linear", function () {
// when done, add hash to url
// (default click behaviour)
window.location.hash = hash;
});
});
$element.attr('smoothhashscroll', '');
}
}
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}
function imgPlayiframe(element, src) {
if (!$(element).attr("data-videoid")) return;
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var iframe = $("<iframe frameborder='0' webkitallowfullscreen mozallowfullscreen allowfullscreen></iframe>");
$(iframe).attr("src", src + $(element).attr("data-videoid") + '?autoplay=1');
$(element).find('img').css('visibility', 'hidden');
$(element).append(iframe);
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}
var anchorForId = function (id) {
var anchor = document.createElement("a");
anchor.className = "anchor hidden-xs";
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anchor.href = "#" + id;
anchor.innerHTML = "<span class=\"octicon octicon-link\"></span>";
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anchor.title = id;
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return anchor;
};
var linkifyAnchors = function (level, containingElement) {
var headers = containingElement.getElementsByTagName("h" + level);
for (var h = 0; h < headers.length; h++) {
var header = headers[h];
if (header.getElementsByClassName("anchor").length == 0) {
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if (typeof header.id == "undefined" || header.id == "") {
//to escape characters not allow in css and humanize
var id = slugifyWithUTF8(header.innerHTML);
header.id = id;
}
header.insertBefore(anchorForId(header.id), header.firstChild);
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}
}
};
function autoLinkify(view) {
var contentBlock = view[0];
if (!contentBlock) {
return;
}
for (var level = 1; level <= 6; level++) {
linkifyAnchors(level, contentBlock);
}
}
function deduplicatedHeaderId(view) {
var headers = view.find(':header.raw').removeClass('raw').toArray();
for (var i = 0; i < headers.length; i++) {
var id = $(headers[i]).attr('id');
if (!id) continue;
var duplicatedHeaders = view.find(':header[id="' + id + '"]').toArray();
for (var j = 0; j < duplicatedHeaders.length; j++) {
if (duplicatedHeaders[j] != headers[i]) {
var newId = id + j;
var $duplicatedHeader = $(duplicatedHeaders[j]);
$duplicatedHeader.attr('id', newId);
var $headerLink = $duplicatedHeader.find('> .header-link');
$headerLink.attr('href', '#' + newId);
$headerLink.attr('title', newId);
}
}
}
}
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function renderTOC(view) {
var tocs = view.find('.toc').toArray();
for (var i = 0; i < tocs.length; i++) {
var toc = $(tocs[i]);
var id = 'toc' + i;
toc.attr('id', id);
var target = $('#' + id);
target.html('');
new Toc('doc', {
'level': 3,
'top': -1,
'class': 'toc',
'targetId': id
});
if (target.text() == 'undefined')
target.html('');
target.replaceWith(target.html());
}
}
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function scrollToHash() {
var hash = location.hash;
location.hash = "";
location.hash = hash;
}
function highlightRender(code, lang) {
if (!lang || /no(-?)highlight|plain|text/.test(lang))
return;
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if (lang == 'sequence') {
return '<div class="sequence-diagram raw">' + code + '</div>';
} else if (lang == 'flow') {
return '<div class="flow-chart raw">' + code + '</div>';
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} else if (lang == 'graphviz') {
return '<div class="graphviz raw">' + code + '</div>';
} else if (lang == 'mermaid') {
return '<div class="mermaid raw">' + code + '</div>';
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}
var reallang = lang.replace(/\=$|\=\d+$|\=\+$/, '');
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var languages = hljs.listLanguages();
if (languages.indexOf(reallang) == -1) {
var result = hljs.highlightAuto(code);
} else {
var result = hljs.highlight(reallang, code);
}
var showlinenumbers = /\=$|\=\d+$|\=\+$/.test(lang);
if (showlinenumbers) {
var startnumber = 1;
var matches = lang.match(/\=(\d+)$/);
if (matches)
startnumber = parseInt(matches[1]);
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var lines = result.value.split('\n');
var linenumbers = [];
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for (var i = 0; i < lines.length - 1; i++) {
linenumbers[i] = "<span data-linenumber='" + (startnumber + i) + "'></span>";
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}
var continuelinenumber = /\=\+$/.test(lang);
var linegutter = "<div class='gutter linenumber" + (continuelinenumber ? " continue" : "") + "'>" + linenumbers.join('\n') + "</div>";
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result.value = "<div class='wrapper'>" + linegutter + "<div class='code'>" + result.value + "</div></div>";
}
return result.value;
}
emojify.setConfig({
blacklist: {
elements: ['script', 'textarea', 'a', 'pre', 'code', 'svg'],
classes: ['no-emojify']
},
img_dir: serverurl + '/vendor/emojify/images',
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ignore_emoticons: true
});
var md = window.markdownit('default', {
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html: true,
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breaks: true,
langPrefix: "",
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linkify: true,
typographer: true,
highlight: highlightRender
});
md.use(window.markdownitAbbr);
md.use(window.markdownitFootnote);
md.use(window.markdownitDeflist);
md.use(window.markdownitMark);
md.use(window.markdownitIns);
md.use(window.markdownitSub);
md.use(window.markdownitSup);
md.use(window.markdownitMathjax);
md.use(window.markdownitImsize);
function renderContainer(tokens, idx, options, env, self) {
tokens[idx].attrJoin('role', 'alert');
tokens[idx].attrJoin('class', 'alert');
tokens[idx].attrJoin('class', 'alert-' + tokens[idx].info.trim());
return self.renderToken.apply(self, arguments);
}
md.use(window.markdownitContainer, 'success', { render: renderContainer });
md.use(window.markdownitContainer, 'info', { render: renderContainer });
md.use(window.markdownitContainer, 'warning', { render: renderContainer });
md.use(window.markdownitContainer, 'danger', { render: renderContainer });
md.renderer.rules.image = function (tokens, idx, options, env, self) {
tokens[idx].attrJoin('class', 'raw');
return self.renderToken.apply(self, arguments);
};
md.renderer.rules.list_item_open = function (tokens, idx, options, env, self) {
tokens[idx].attrJoin('class', 'raw');
return self.renderToken.apply(self, arguments);
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};
md.renderer.rules.blockquote_open = function (tokens, idx, options, env, self) {
tokens[idx].attrJoin('class', 'raw');
return self.renderToken.apply(self, arguments);
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};
md.renderer.rules.heading_open = function (tokens, idx, options, env, self) {
tokens[idx].attrJoin('class', 'raw');
return self.renderToken.apply(self, arguments);
};
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md.renderer.rules.fence = function (tokens, idx, options, env, self) {
var token = tokens[idx],
info = token.info ? md.utils.unescapeAll(token.info).trim() : '',
langName = '',
highlighted;
if (info) {
langName = info.split(/\s+/g)[0];
token.attrJoin('class', options.langPrefix + langName.replace(/\=$|\=\d+$|\=\+$/, ''));
token.attrJoin('class', 'hljs');
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}
if (options.highlight) {
highlighted = options.highlight(token.content, langName) || md.utils.escapeHtml(token.content);
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} else {
highlighted = md.utils.escapeHtml(token.content);
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}
if (highlighted.indexOf('<pre') === 0) {
return highlighted + '\n';
}
return '<pre><code' + self.renderAttrs(token) + '>'
+ highlighted
+ '</code></pre>\n';
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};
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//youtube
var youtubePlugin = new Plugin(
// regexp to match
/{%youtube\s*([\d\D]*?)\s*%}/,
// this function will be called when something matches
function (match, utils) {
var videoid = match[1];
if (!videoid) return;
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var div = $('<div class="youtube raw"></div>');
div.attr('data-videoid', videoid);
var thumbnail_src = '//img.youtube.com/vi/' + videoid + '/hqdefault.jpg';
var image = '<img src="' + thumbnail_src + '" />';
div.append(image);
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var icon = '<i class="icon fa fa-youtube-play fa-5x"></i>';
div.append(icon);
return div[0].outerHTML;
}
);
//vimeo
var vimeoPlugin = new Plugin(
// regexp to match
/{%vimeo\s*([\d\D]*?)\s*%}/,
// this function will be called when something matches
function (match, utils) {
var videoid = match[1];
if (!videoid) return;
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var div = $('<div class="vimeo raw"></div>');
div.attr('data-videoid', videoid);
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var icon = '<i class="icon fa fa-vimeo-square fa-5x"></i>';
div.append(icon);
return div[0].outerHTML;
}
);
//gist
var gistPlugin = new Plugin(
// regexp to match
/{%gist\s*([\d\D]*?)\s*%}/,
// this function will be called when something matches
function (match, utils) {
var gistid = match[1];
var code = '<code data-gist-id="' + gistid + '"/>';
return code;
}
);
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//TOC
var tocPlugin = new Plugin(
// regexp to match
/^\[TOC\]$/,
// this function will be called when something matches
function (match, utils) {
return '<div class="toc"></div>';
}
);
//slideshare
var slidesharePlugin = new Plugin(
// regexp to match
/{%slideshare\s*([\d\D]*?)\s*%}/,
// this function will be called when something matches
function (match, utils) {
var slideshareid = match[1];
var div = $('<div class="slideshare raw"></div>');
div.attr('data-slideshareid', slideshareid);
return div[0].outerHTML;
}
);
//speakerdeck
var speakerdeckPlugin = new Plugin(
// regexp to match
/{%speakerdeck\s*([\d\D]*?)\s*%}/,
// this function will be called when something matches
function (match, utils) {
var speakerdeckid = match[1];
var div = $('<div class="speakerdeck raw"></div>');
div.attr('data-speakerdeckid', speakerdeckid);
return div[0].outerHTML;
}
);
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//pdf
var pdfPlugin = new Plugin(
// regexp to match
/{%pdf\s*([\d\D]*?)\s*%}/,
// this function will be called when something matches
function (match, utils) {
var pdfurl = match[1];
if (!isValidURL(pdfurl)) return match[0];
var div = $('<div class="pdf raw"></div>');
div.attr('data-pdfurl', pdfurl);
return div[0].outerHTML;
}
);
//yaml meta, from https://github.com/eugeneware/remarkable-meta
function get(state, line) {
var pos = state.bMarks[line];
var max = state.eMarks[line];
return state.src.substr(pos, max - pos);
}
function meta(state, start, end, silent) {
if (start !== 0 || state.blkIndent !== 0) return false;
if (state.tShift[start] < 0) return false;
if (!get(state, start).match(/^---$/)) return false;
var data = [];
for (var line = start + 1; line < end; line++) {
var str = get(state, line);
if (str.match(/^(\.{3}|-{3})$/)) break;
if (state.tShift[line] < 0) break;
data.push(str);
}
if (line >= end) return false;
try {
md.meta = jsyaml.safeLoad(data.join('\n')) || {};
} catch(err) {
console.warn(err);
return false;
}
state.line = line + 1;
return true;
}
function metaPlugin(md) {
md.meta = md.meta || {};
md.block.ruler.before('code', 'meta', meta, {
alt: []
});
}
md.use(metaPlugin);
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md.use(youtubePlugin);
md.use(vimeoPlugin);
md.use(gistPlugin);
md.use(tocPlugin);
md.use(slidesharePlugin);
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md.use(speakerdeckPlugin);
md.use(pdfPlugin);