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index.html
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<!DOCTYPE HTML>
<html>
<head>
<meta charset="urf-8">
<meta name="renderer" content="webkit">
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1">
<title>MarkDown</title>
<link rel="stylesheet" href="css/style.css">
<!--[if lt IE 9]>
<script src="js/html5shiv.js"></script>
<![endif]-->
</head>
<body style="margin:0;padding:20px;background:#f8f8f8">
<div style="margin-top:1em">
<textarea style="height: 400px" autocomplete="off" id="text" name="text" class="markdown-textarea"></textarea>
</div>
<div style="line-height:24px;font-size:12px;color:#999;">By：<a style="color:#f90;text-decoration:none" href="http://www.zi-han.ne/">子涵</a> MarkDown使用手册可参考：<a style="color:#666;text-decoration:none"href="http://wowubuntu.com/markdown/">http://wowubuntu.com/markdown/</a></div>
<script src="js/jquery.js"></script>
<script src="js/jquery.scrollto.js"></script>
<script src="js/pagedown.js"></script>
<script src="js/pagedown-extra.js"></script>
<script src="js/diff.js"></script>
<script>
$(document).ready(function () {
var textarea = $('#text'),
toolbar = $('<div class="markdown-editor" id="md-button-bar" />').insertBefore(textarea.parent())
preview = $('<div id="md-preview" class="md-hidetab" />').insertAfter('.markdown-editor');
var options = {};
options.strings = {
bold: '加粗 <strong> Ctrl+B',
boldexample: '加粗文字',
italic: '斜体 <em> Ctrl+I',
italicexample: '斜体文字',
link: '链接 <a> Ctrl+L',
linkdescription: '请输入链接描述',
quote: '引用 <blockquote> Ctrl+Q',
quoteexample: '引用文字',
code: '代码 <pre><code> Ctrl+K',
codeexample: '请输入代码',
image: '图片 <img> Ctrl+G',
imagedescription: '请输入图片描述',
olist: '数字列表 <ol> Ctrl+O',
ulist: '普通列表 <ul> Ctrl+U',
litem: '列表项目',
heading: '标题 <h1>/<h2> Ctrl+H',
headingexample: '标题文字',
hr: '分割线 <hr> Ctrl+R',
more: '摘要分割线 <!--more--> Ctrl+M',
undo: '撤销 - Ctrl+Z',
redo: '重做 - Ctrl+Y',
redomac: '重做 - Ctrl+Shift+Z',
fullscreen: '全屏 - Ctrl+J',
exitFullscreen: '退出全屏 - Ctrl+E',
fullscreenUnsupport: '此浏览器不支持全屏操作',
imagedialog: '<p><b>插入图片</b></p><p>请在下方的输入框内输入要插入的远程图片地址</p>',
linkdialog: '<p><b>插入链接</b></p><p>请在下方的输入框内输入要插入的链接地址</p>',
ok: '确定',
cancel: '取消'
};
var converter = new Markdown.Converter(),
editor = new Markdown.Editor(converter, '', options),
diffMatch = new diff_match_patch(), last = '', preview = $('#md-preview'),
mark = '@mark' + Math.ceil(Math.random() * 100000000) + '@',
span = '<span class="diff" />';
// 设置markdown
Markdown.Extra.init(converter, {
extensions : ["tables", "fenced_code_gfm", "def_list", "attr_list", "footnotes"]
});
// 自动跟随
converter.hooks.chain('postConversion', function (html) {
// clear special html tags
html = html.replace(/<\/?(\!doctype|html|head|body|link|title|input|select|button|textarea|style|noscript)[^>]*>/ig, function (all) {
return all.replace(/&/g, '&')
.replace(/</g, '<')
.replace(/>/g, '>')
.replace(/'/g, ''')
.replace(/"/g, '"');
});
// clear hard breaks
html = html.replace(/\s*((?:<br>\n)+)\s*(<\/?(?:p|div|h[1-6]|blockquote|pre|table|dl|ol|ul|address|form|fieldset|iframe|hr|legend|article|section|nav|aside|hgroup|header|footer|figcaption|li|dd|dt)[^\w])/gm, '$2');
if (html.indexOf('<!--more-->') > 0) {
var parts = html.split(/\s*<\!\-\-more\-\->\s*/),
summary = parts.shift(),
details = parts.join('');
html = '<div class="summary">' + summary + '</div>'
+ '<div class="details">' + details + '</div>';
}
var diffs = diffMatch.diff_main(last, html);
last = html;
if (diffs.length > 0) {
var stack = [], markStr = mark;
for (var i = 0; i < diffs.length; i ++) {
var diff = diffs[i], op = diff[0], str = diff[1]
sp = str.lastIndexOf('<'), ep = str.lastIndexOf('>');
if (op != 0) {
if (sp >=0 && sp > ep) {
if (op > 0) {
stack.push(str.substring(0, sp) + markStr + str.substring(sp));
} else {
var lastStr = stack[stack.length - 1], lastSp = lastStr.lastIndexOf('<');
stack[stack.length - 1] = lastStr.substring(0, lastSp) + markStr + lastStr.substring(lastSp);
}
} else {
if (op > 0) {
stack.push(str + markStr);
} else {
stack.push(markStr);
}
}
markStr = '';
} else {
stack.push(str);
}
}
html = stack.join('');
if (!markStr) {
var pos = html.indexOf(mark), prev = html.substring(0, pos),
next = html.substr(pos + mark.length),
sp = prev.lastIndexOf('<'), ep = prev.lastIndexOf('>');
if (sp >= 0 && sp > ep) {
html = prev.substring(0, sp) + span + prev.substring(sp) + next;
} else {
html = prev + span + next;
}
}
}
return html;
});
editor.hooks.chain('onPreviewRefresh', function () {
var diff = $('.diff', preview), scrolled = false;
$('img', preview).load(function () {
if (scrolled) {
preview.scrollTo(diff, {
offset : - 50
});
}
});
if (diff.length > 0) {
var p = diff.position(), lh = diff.parent().css('line-height');
lh = !!lh ? parseInt(lh) : 0;
if (p.top < 0 || p.top > preview.height() - lh) {
preview.scrollTo(diff, {
offset : - 50
});
scrolled = true;
}
}
});
var input = $('#text'), th = textarea.height(), ph = preview.height();
editor.hooks.chain('enterFakeFullScreen', function () {
th = textarea.height();
ph = preview.height();
$(document.body).addClass('fullscreen');
var h = $(window).height() - toolbar.outerHeight();
textarea.css('height', h);
preview.css('height', h);
});
editor.hooks.chain('enterFullScreen', function () {
$(document.body).addClass('fullscreen');
var h = window.screen.height - toolbar.outerHeight();
textarea.css('height', h);
preview.css('height', h);
});
editor.hooks.chain('exitFullScreen', function () {
$(document.body).removeClass('fullscreen');
textarea.height(th);
preview.height(ph);
});
editor.run();
// 编辑预览切换
var edittab = $('#md-button-bar').prepend('<div class="md-edittab"><a href="#md-editarea" class="active">撰写</a><a href="#md-preview">预览</a></div>'),
editarea = $(textarea.parent()).attr("id", "md-editarea");
$(".md-edittab a").click(function() {
$(".md-edittab a").removeClass('active');
$(this).addClass("active");
$("#md-editarea, #md-preview").addClass("md-hidetab");
var selected_tab = $(this).attr("href"),
selected_el = $(selected_tab).removeClass("md-hidetab");
// 预览时隐藏编辑器按钮
if (selected_tab == "#md-preview") {
$("#md-button-row").addClass("md-visualhide");
} else {
$("#md-button-row").removeClass("md-visualhide");
}
// 预览和编辑窗口高度一致
$("#md-preview").outerHeight($("#md-editarea").innerHeight());
return false;
});
});
</script>
</body>
</html>