Original link: https://www.cnblogs.com/xuehaoyue/p/6650533.html
Reference links:
http://www.cnblogs.com/xdp-gacl/p/3718879.html#2937655
http://www.cnblogs.com/zzqcn/p/4657124.html
http://www.cnblogs.com /jiangz/p/3734968.html
The first: Add the directory directly above the text
1. subscribe permission js
The default is not supported, you need to open the back garden blog, go to "Settings" tab, click on the "subscribe js rights", and indicate the purpose
if you want to speed up application speed, you can also send e-mail again official (mailbox is contact @ cnblogs .com ), the message also needs to indicate the purpose, fast, then one hour will be able to get
2. Add js script to "Footer Html Code"
Open the back garden blog, go to "Settings" tab, paste the following js code in the bottom of the "footer Html Code" corresponding edit box, then click the "Save" button to save.
(If you do not open js rights, can not be added here)
<script language="javascript" type="text/javascript">
// 生成目录索引列表
// ref: http://www.cnblogs.com/wangqiguo/p/4355032.html
// modified by: zzq
function GenerateContentList()
{
var mainContent = $('#cnblogs_post_body');
var h2_list = $('#cnblogs_post_body h2');//如果你的章节标题不是h2,只需要将这里的h2换掉即可
if(mainContent.length < 1)
return;
if(h2_list.length>0)
{
var content = '<a name="_labelTop"></a>';
content += '<div id="navCategory" style="color:#152e97;">';
content += '<p style="font-size:18px;"><b>目录</b></p>';
content += '<ul>';
for(var i=0; i<h2_list.length; i++)
{
var go_to_top = '<div style="text-align: right;"><a href="#_labelTop" style="color:#f68a33">回到顶部</a><a name="_label' + i + '"></a></div>';
$(h2_list[i]).before(go_to_top);
var h3_list = $(h2_list[i]).nextAll("h3");
var li3_content = '';
for(var j=0; j<h3_list.length; j++)
{
var tmp = $(h3_list[j]).prevAll('h2').first();
if(!tmp.is(h2_list[i]))
break;
var li3_anchor = '<a name="_label' + i + '_' + j + '"></a>';
$(h3_list[j]).before(li3_anchor);
li3_content += '<li><a href="#_label' + i + '_' + j + '">' + $(h3_list[j]).text() + '</a></li>';
}
var li2_content = '';
if(li3_content.length > 0)
li2_content = '<li><a href="#_label' + i + '">' + $(h2_list[i]).text() + '</a><ul>' + li3_content + '</ul></li>';
else
li2_content = '<li><a href="#_label' + i + '">' + $(h2_list[i]).text() + '</a></li>';
content += li2_content;
}
content += '</ul>';
content += '</div><p> </p>';
content += '<hr style="height:1px;border:none;border-top:1px dashed #0066CC;"/>';
if($('#cnblogs_post_body').length != 0 )
{
$($('#cnblogs_post_body')[0]).prepend(content);
}
}
}
GenerateContentList();
</script>3. Press the format writing
When writing a new blog, pay attention to your js script in the format set by dividing chapter (here only set h2, h3, corresponding to the general editor of two titles and three titles, the corresponding markdown of ## with###). Of course, if you have previously published articles h2, h3, it will automatically generate a directory index.
Results are as follows:
The second: add a directory navigation in the upper right corner of the article
1. subscribe permission js
Ditto
2. Add css code to the "page custom CSS code."
/*生成博客目录的CSS*/
#uprightsideBar{
font-size:12px;
font-family:Arial, Helvetica, sans-serif;
text-align:left;
position:fixed;/*将div的位置固定到距离top:50px，right:0px的位置，这样div就会处在最右边的位置，距离顶部50px*/
top:50px;
right:0px;
width: auto;
height: auto;
}
#sideBarTab{
float:left;
width:30px;
border:1px solid #e5e5e5;
border-right:none;
text-align:center;
background:#ffffff;
}
#sideBarContents{
float:left;
overflow:auto;
overflow-x:hidden;!important;
width:200px;
min-height:108px;
max-height:460px;
border:1px solid #e5e5e5;
border-right:none;
background:#ffffff;
}
#sideBarContents dl{
margin:0;
padding:0;
}
#sideBarContents dt{
margin-top:5px;
margin-left:5px;
}
#sideBarContents dd, dt {
cursor: pointer;
}
#sideBarContents dd:hover, dt:hover {
color:#A7995A;
}
#sideBarContents dd{
margin-left:20px;
}3. Add js script to "Top Html Code"
<script type="text/javascript">
/*
功能：生成博客目录的JS工具
测试：IE8，火狐，google测试通过
孤傲苍狼
2014-5-11
*/
var BlogDirectory = {
/*
获取元素位置，距浏览器左边界的距离（left）和距浏览器上边界的距离（top）
*/
getElementPosition:function (ele) {
var topPosition = 0;
var leftPosition = 0;
while (ele){
topPosition += ele.offsetTop;
leftPosition += ele.offsetLeft;
ele = ele.offsetParent;
}
return {top:topPosition, left:leftPosition};
},
/*
获取滚动条当前位置
*/
getScrollBarPosition:function () {
var scrollBarPosition = document.body.scrollTop || document.documentElement.scrollTop;
return scrollBarPosition;
},
/*
移动滚动条，finalPos 为目的位置，internal 为移动速度
*/
moveScrollBar:function(finalpos, interval) {
//若不支持此方法，则退出
if(!window.scrollTo) {
return false;
}
//窗体滚动时，禁用鼠标滚轮
window.onmousewheel = function(){
return false;
};
//清除计时
if (document.body.movement) {
clearTimeout(document.body.movement);
}
var currentpos =BlogDirectory.getScrollBarPosition();//获取滚动条当前位置
var dist = 0;
if (currentpos == finalpos) {//到达预定位置，则解禁鼠标滚轮，并退出
window.onmousewheel = function(){
return true;
}
return true;
}
if (currentpos < finalpos) {//未到达，则计算下一步所要移动的距离
dist = Math.ceil((finalpos - currentpos)/10);
currentpos += dist;
}
if (currentpos > finalpos) {
dist = Math.ceil((currentpos - finalpos)/10);
currentpos -= dist;
}
var scrTop = BlogDirectory.getScrollBarPosition();//获取滚动条当前位置
window.scrollTo(0, currentpos);//移动窗口
if(BlogDirectory.getScrollBarPosition() == scrTop)//若已到底部，则解禁鼠标滚轮，并退出
{
window.onmousewheel = function(){
return true;
}
return true;
}
//进行下一步移动
var repeat = "BlogDirectory.moveScrollBar(" + finalpos + "," + interval + ")";
document.body.movement = setTimeout(repeat, interval);
},
htmlDecode:function (text){
var temp = document.createElement("div");
temp.innerHTML = text;
var output = temp.innerText || temp.textContent;
temp = null;
return output;
},
/*
创建博客目录，
id表示包含博文正文的 div 容器的 id，
mt 和 st 分别表示主标题和次级标题的标签名称（如 H2、H3，大写或小写都可以！），
interval 表示移动的速度
*/
createBlogDirectory:function (id, mt, st, interval){
//获取博文正文div容器
var elem = document.getElementById(id);
if(!elem) return false;
//获取div中所有元素结点
var nodes = elem.getElementsByTagName("*");
//创建博客目录的div容器
var divSideBar = document.createElement('DIV');
divSideBar.className = 'uprightsideBar';
divSideBar.setAttribute('id', 'uprightsideBar');
var divSideBarTab = document.createElement('DIV');
divSideBarTab.setAttribute('id', 'sideBarTab');
divSideBar.appendChild(divSideBarTab);
var h2 = document.createElement('H2');
divSideBarTab.appendChild(h2);
var txt = document.createTextNode('目录导航');
h2.appendChild(txt);
var divSideBarContents = document.createElement('DIV');
divSideBarContents.style.display = 'none';
divSideBarContents.setAttribute('id', 'sideBarContents');
divSideBar.appendChild(divSideBarContents);
//创建自定义列表
var dlist = document.createElement("dl");
divSideBarContents.appendChild(dlist);
var num = 0;//统计找到的mt和st
mt = mt.toUpperCase();//转化成大写
st = st.toUpperCase();//转化成大写
//遍历所有元素结点
for(var i=0; i<nodes.length; i++)
{
if(nodes[i].nodeName == mt|| nodes[i].nodeName == st)
{
//获取标题文本
var nodetext = nodes[i].innerHTML.replace(/<\/?[^>]+>/g,"");//innerHTML里面的内容可能有HTML标签，所以用正则表达式去除HTML的标签
nodetext = nodetext.replace(/ /ig, "");//替换掉所有的
nodetext = BlogDirectory.htmlDecode(nodetext);
//插入锚
nodes[i].setAttribute("id", "blogTitle" + num);
var item;
switch(nodes[i].nodeName)
{
case mt: //若为主标题
item = document.createElement("dt");
break;
case st: //若为子标题
item = document.createElement("dd");
break;
}
//创建锚链接
var itemtext = document.createTextNode(nodetext);
item.appendChild(itemtext);
item.setAttribute("name", num);
item.onclick = function(){ //添加鼠标点击触发函数
var pos = BlogDirectory.getElementPosition(document.getElementById("blogTitle" + this.getAttribute("name")));
if(!BlogDirectory.moveScrollBar(pos.top, interval)) return false;
};
//将自定义表项加入自定义列表中
dlist.appendChild(item);
num++;
}
}
if(num == 0) return false;
/*鼠标进入时的事件处理*/
divSideBarTab.onmouseenter = function(){
divSideBarContents.style.display = 'block';
}
/*鼠标离开时的事件处理*/
divSideBar.onmouseleave = function() {
divSideBarContents.style.display = 'none';
}
document.body.appendChild(divSideBar);
}
};
window.onload=function(){
/*页面加载完成之后生成博客目录*/
BlogDirectory.createBlogDirectory("cnblogs_post_body","h2","h3",20);
}
</script>4. Press the format writing
Ibid
effect is as follows:
