//auto update last change
var lastchangetime = null;
var lastchangeui = {
time: $(".ui-lastchange"),
user: $(".ui-lastchangeuser"),
nouser: $(".ui-no-lastchangeuser")
}
function updateLastChange() {
if (lastchangetime && lastchangeui) {
lastchangeui.time.html(moment(lastchangetime).fromNow());
lastchangeui.time.attr('title', moment(lastchangetime).format('llll'));
}
}
setInterval(updateLastChange, 60000);
function updateLastChangeUser(data) {
if (data.lastchangeuserprofile) {
var icon = lastchangeui.user.children('i');
icon.attr('title', data.lastchangeuserprofile.name).tooltip('fixTitle');
icon.attr('style', 'background-image:url(' + data.lastchangeuserprofile.photo + ')');
lastchangeui.user.show();
lastchangeui.nouser.hide();
} else {
lastchangeui.user.hide();
lastchangeui.nouser.show();
}
}
//get title
function getTitle(view) {
var h1s = view.find("h1");
var title = "";
if (h1s.length > 0) {
title = h1s.first().text();
} else {
title = null;
}
return title;
}
//render title
function renderTitle(view) {
var title = getTitle(view);
if (title) {
title += ' - HackMD';
} else {
title = 'HackMD - Collaborative notes';
}
return title;
}
//render filename
function renderFilename(view) {
var filename = getTitle(view);
if (!filename) {
filename = 'Untitled';
}
return filename;
}
function slugifyWithUTF8(text) {
var newText = S(text.toLowerCase()).trim().stripTags().dasherize().s;
newText = newText.replace(/([\!\"\#\$\%\&\'\(\)\*\+\,\.\/\:\;\<\=\>\?\@\[\\\]\^\`\{\|\}\~])/g, '');
return newText;
}
//parse meta
function parseMeta(md, edit, view, toc, tocAffix) {
var robots = null;
var lang = null;
var dir = null;
var breaks = true;
if (md && md.meta) {
var meta = md.meta;
robots = meta.robots;
lang = meta.lang;
dir = meta.dir;
breaks = meta.breaks;
}
//robots meta
var robotsMeta = $('meta[name=robots]');
if (robots) {
if (robotsMeta.length > 0)
robotsMeta.attr('content', robots);
else
$('head').prepend('');
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);
});
//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);
$(value).html(html);
});
//color tag in blockquote will change its left border color
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 = $('
').append(iframe);
var height = iframe.attr('height');
var width = iframe.attr('width');
var ratio = (height / width) * 100;
inner.css('padding-bottom', ratio + '%');
$(value).html(inner).append(caption);
}
});
});
//speakerdeck
view.find(".speakerdeck.raw").removeClass("raw")
.each(function (key, value) {
var url = 'https://speakerdeck.com/oembed.json?url=https%3A%2F%2Fspeakerdeck.com%2F' + encodeURIComponent($(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) {
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 = $('
').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);
}
});
});
//render title
document.title = renderTitle(view);
}
//only static transform should be here
function postProcess(code) {
var result = $('' + code + '
');
//link should open in new window or tab
result.find('a:not([href^="#"]):not([target])').attr('target', '_blank');
//update continue line numbers
var linenumberdivs = result.find('.gutter.linenumber').toArray();
for (var i = 0; i < linenumberdivs.length; i++) {
if ($(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;
}
//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 = 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/';
}
if (url) {
var iframe = $('');
iframe.attr('src', url + id);
iframe.attr('style', style);
$(value).html(iframe);
}
});
//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(),
robots: (md && md.meta && md.meta.robots) ? ' Back to top ');
var gotobottom = $('Go to bottom ');
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) {
$element.on('click', function (e) {
// store hash
var hash = decodeURIComponent(this.hash);
if ($(hash).length <= 0) return;
// prevent default anchor click behavior
e.preventDefault();
// animate
$('body, html').stop(true, true).animate({
scrollTop: $(hash).offset().top
}, 100, "linear", function () {
// when done, add hash to url
// (default click behaviour)
window.location.hash = hash;
});
});
$element.attr('smoothhashscroll', '');
}
}
}
function imgPlayiframe(element, src) {
if (!$(element).attr("data-videoid")) return;
var iframe = $("");
$(iframe).attr("src", src + $(element).attr("data-videoid") + '?autoplay=1');
$(element).find('img').css('visibility', 'hidden');
$(element).append(iframe);
}
var anchorForId = function (id) {
var anchor = document.createElement("a");
anchor.className = "header-link hidden-xs";
anchor.href = "#" + id;
anchor.innerHTML = "' + code + '
';
} else if (lang == 'flow') {
return '' + code + '
';
} else if (lang == 'graphviz') {
return '' + code + '
';
} else if (lang == 'mermaid') {
return '' + code + '
';
}
var reallang = lang.replace(/\=$|\=\d+$|\=\+$/, '');
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]);
var lines = result.value.split('\n');
var linenumbers = [];
for (var i = 0; i < lines.length - 1; i++) {
linenumbers[i] = "" + linenumbers.join('\n') + "
";
result.value = "" + linegutter + "
" + result.value + "
'
+ highlighted
+ '\n';
};
//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;
var div = $('
');
div.attr('data-videoid', videoid);
var thumbnail_src = '//img.youtube.com/vi/' + videoid + '/hqdefault.jpg';
var image = '
');
div.attr('data-videoid', videoid);
var icon = '
';
}
);
//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.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 = $('
');
div.attr('data-speakerdeckid', speakerdeckid);
return div[0].outerHTML;
}
);
//yaml meta, from https://github.com/eugeneware/remarkable-meta
function get(state, line) {
var pos = state.bMarks[line];
var max = state.eMarks[line];
return state.src.substr(pos, max - pos);
}
function meta(state, start, end, silent) {
if (start !== 0 || state.blkIndent !== 0) return false;
if (state.tShift[start] < 0) return false;
if (!get(state, start).match(/^---$/)) 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);
md.use(youtubePlugin);
md.use(vimeoPlugin);
md.use(gistPlugin);
md.use(tocPlugin);
md.use(slidesharePlugin);
md.use(speakerdeckPlugin);