前言
样式1
/*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:90px;
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;
}
<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
*/
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('p');
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","h5","h6",20);
}
</script>
- 效果
样式2
<script language="javascript" type="text/javascript">
function GenerateContentList()
{
var mainContent = $('#cnblogs_post_body');
var h2_list = $('#cnblogs_post_body h6');//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:14px;"><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">Top</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>
- 效果
默认