Maison >interface Web >js tutoriel >Js réalise la suppression de contenu sans compétences en matière de rafraîchissement_javascript
Js réalise la suppression de contenu sans compétences en matière de rafraîchissement_javascript
- WBOYoriginal
- 2016-05-16 16:01:531851parcourir
Js实现无刷新删除内容
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>仿腾讯微博效果</title>
<style type="text/css">
body,div,h2,h3,ul,li,p{margin:0;padding:0;}
a{text-decoration:none;}
a:hover{text-decoration:underline;}
ul{list-style-type:none;}
body{color:#333;background:#3c3a3b;font:12px/1.5 \5b8b\4f53;}
#msgBox{width:500px;background:#fff;border-radius:5px;margin:10px auto;padding-top:10px;}
#msgBox form h2{font-weight:400;font:400 18px/1.5 \5fae\8f6f\96c5\9ed1;}
#msgBox form{background:url() repeat-x 0 bottom;padding:0 20px 15px;}
#userName,#conBox{color:#777;border:1px solid #d0d0d0;border-radius:6px;background:#fff url(img/inputBG.png) repeat-x;padding:3px 5px;font:14px/1.5 arial;}
#userName.active,#conBox.active{border:1px solid #7abb2c;}
#userName{height:20px;}
#conBox{width:448px;resize:none;height:65px;overflow:auto;}
#msgBox form div{position:relative;color:#999;margin-top:10px;}
#msgBox img{border-radius:3px;}
#face{position:absolute;top:0;left:172px;}
#face img{width:30px;height:30px;cursor:pointer;margin-right:6px;opacity:0.5;filter:alpha(opacity=50);}
#face img.hover,#face img.current{width:28px;height:28px;border:1px solid #f60;opacity:1;filter:alpha(opacity=100);}
#sendBtn{border:0;width:112px;height:30px;cursor:pointer;margin-left:10px;background:url(img/btn.png) no-repeat;}
#sendBtn.hover{background-position:0 -30px;}
#msgBox form .maxNum{font:26px/30px Georgia, Tahoma, Arial;padding:0 5px;}
#msgBox .list{padding:10px;}
#msgBox .list h3{position:relative;height:33px;font-size:14px;font-weight:400;background:#e3eaec;border:1px solid #dee4e7;}
#msgBox .list h3 span{position:absolute;left:6px;top:6px;background:#fff;line-height:28px;display:inline-block;padding:0 15px;}
#msgBox .list ul{overflow:hidden;zoom:1;}
#msgBox .list ul li{float:left;clear:both;width:100%;border-bottom:1px dashed #d8d8d8;padding:10px 0;background:#fff;overflow:hidden;}
#msgBox .list ul li.hover{background:#f5f5f5;}
#msgBox .list .userPic{float:left;width:50px;height:50px;display:inline;margin-left:10px;border:1px solid #ccc;border-radius:3px;}
#msgBox .list .content{float:left;width:400px;font-size:14px;margin-left:10px;font-family:arial;word-wrap:break-word;}
#msgBox .list .userName{display:inline;padding-right:5px;}
#msgBox .list .userName a{color:#2b4a78;}
#msgBox .list .msgInfo{display:inline;word-wrap:break-word;}
#msgBox .list .times{color:#889db6;font:12px/18px arial;margin-top:5px;overflow:hidden;zoom:1;}
#msgBox .list .times span{float:left;}
#msgBox .list .times a{float:right;color:#889db6;display:none;}
.tr{overflow:hidden;zoom:1;}
.tr p{float:right;line-height:30px;}
.tr *{float:left;}
</style>
<script type="text/javascript">
var get = {
byId: function(id) {
return typeof id === "string" ? document.getElementById(id) : id
},
byClass: function(sClass, oParent) {
var aClass = [];
var reClass = new RegExp("(^| )" + sClass + "( |$)");
var aElem = this.byTagName("*", oParent);
for (var i = 0; i < aElem.length; i++) reClass.test(aElem[i].className) && aClass.push(aElem[i]);
return aClass
},
byTagName: function(elem, obj) {
return (obj || document).getElementsByTagName(elem)
}
};
/*-------------------------- +
事件绑定, 删除
+-------------------------- */
var EventUtil = {
addHandler: function (oElement, sEvent, fnHandler) {
oElement.addEventListener ? oElement.addEventListener(sEvent, fnHandler, false) : (oElement["_" + sEvent + fnHandler] = fnHandler, oElement[sEvent + fnHandler]
= function () {oElement["_" + sEvent + fnHandler]()}, oElement.attachEvent("on" + sEvent, oElement[sEvent + fnHandler]))
},
removeHandler: function (oElement, sEvent, fnHandler) {
oElement.removeEventListener ? oElement.removeEventListener(sEvent, fnHandler, false) : oElement.detachEvent("on" + sEvent, oElement[sEvent + fnHandler])
},
addLoadHandler: function (fnHandler) {
this.addHandler(window, "load", fnHandler)
}
};
/*-------------------------- +
设置css样式
读取css样式
+-------------------------- */
function css(obj, attr, value)
{
switch (arguments.length)
{
case 2:
if(typeof arguments[1] == "object")
{
for (var i in attr) i == "opacity" ? (obj.style["filter"] = "alpha(opacity=" + attr[i] + ")", obj.style[i] = attr[i] / 100) : obj.style[i] = attr[i];
}
else
{
return obj.currentStyle ? obj.currentStyle[attr] : getComputedStyle(obj, null)[attr]
}
break;
case 3:
attr == "opacity" ? (obj.style["filter"] = "alpha(opacity=" + value + ")", obj.style[attr] = value / 100) : obj.style[attr] = value;
break;
}
};
EventUtil.addLoadHandler(function ()
{
var oMsgBox = get.byId("msgBox");
var oUserName = get.byId("userName");
var oConBox = get.byId("conBox");
var oSendBtn = get.byId("sendBtn");
var oMaxNum = get.byClass("maxNum")[0];
var oCountTxt = get.byClass("countTxt")[0];
var oList = get.byClass("list")[0];
var oUl = get.byTagName("ul", oList)[0];
var aLi = get.byTagName("li", oList);
var aFtxt = get.byClass("f-text", oMsgBox);
var aImg = get.byTagName("img", get.byId("face"));
var bSend = false;
var timer = null;
var oTmp = "";
var i = 0;
var maxNum = 140;
//禁止表单提交
EventUtil.addHandler(get.byTagName("form", oMsgBox)[0], "submit", function () {return false});
//为广播按钮绑定发送事件
EventUtil.addHandler(oSendBtn, "click", fnSend);
//为Ctrl+Enter快捷键绑定发送事件
EventUtil.addHandler(document, "keyup", function(event)
{
var event = event || window.event;
event.ctrlKey && event.keyCode == 13 && fnSend()
});
//发送广播函数
function fnSend ()
{
var reg = /^\s*$/g;
if(reg.test(oUserName.value))
{
alert("\u8bf7\u586b\u5199\u60a8\u7684\u59d3\u540d");
oUserName.focus()
}
else if(!/^[u4e00-\u9fa5\w]{2,8}$/g.test(oUserName.value))
{
alert("\u59d3\u540d\u75312-8\u4f4d\u5b57\u6bcd\u3001\u6570\u5b57\u3001\u4e0b\u5212\u7ebf\u3001\u6c49\u5b57\u7ec4\u6210\uff01");
oUserName.focus()
}
else if(reg.test(oConBox.value))
{
alert("\u968f\u4fbf\u8bf4\u70b9\u4ec0\u4e48\u5427\uff01");
oConBox.focus()
}
else if(!bSend)
{
alert("\u4f60\u8f93\u5165\u7684\u5185\u5bb9\u5df2\u8d85\u51fa\u9650\u5236\uff0c\u8bf7\u68c0\u67e5\uff01");
oConBox.focus()
}
else
{
var oLi = document.createElement("li");
var oDate = new Date();
oLi.innerHTML = "<div class=\"userPic\"><img src=\"" + get.byClass("current", get.byId("face"))[0].src + "\"></div>\
<div class=\"content\">\
<div class=\"userName\"><a href=\"javascript:;\">" + oUserName.value + "</a>:</div>\
<div class=\"msgInfo\">" + oConBox.value.replace(/<[^>]*>| /ig, "") + "</div>\
<div class=\"times\"><span>" + format(oDate.getMonth() + 1) + "\u6708" + format(oDate.getDate()) +
"\u65e5 " + format(oDate.getHours()) + ":" + format(oDate.getMinutes()) + "</span><a class=\"del\" href=\"javascript:;\">\u5220\u9664</a></div>\
</div>";
//插入元素
aLi.length ? oUl.insertBefore(oLi, aLi[0]) : oUl.appendChild(oLi);
//重置表单
get.byTagName("form", oMsgBox)[0].reset();
for (i = 0; i < aImg.length; i++) aImg[i].className = "";
aImg[0].className = "current";
//将元素高度保存
var iHeight = oLi.clientHeight - parseFloat(css(oLi, "paddingTop")) - parseFloat(css(oLi, "paddingBottom"));
var alpah = count = 0;
css(oLi, {"opacity" : "0", "height" : "0"});
timer = setInterval(function ()
{
css(oLi, {"display" : "block", "opacity" : "0", "height" : (count += 8) + "px"});
if (count > iHeight)
{
clearInterval(timer);
css(oLi, "height", iHeight + "px");
timer = setInterval(function ()
{
css(oLi, "opacity", (alpah += 10));
alpah > 100 && (clearInterval(timer), css(oLi, "opacity", 100))
},30)
}
},30);
//调用鼠标划过/离开样式
liHover();
//调用删除函数
delLi()
}
};
//事件绑定, 判断字符输入
EventUtil.addHandler(oConBox, "keyup", confine);
EventUtil.addHandler(oConBox, "focus", confine);
EventUtil.addHandler(oConBox, "change", confine);
//输入字符限制
function confine ()
{
var iLen = 0;
for (i = 0; i < oConBox.value.length; i++) iLen += oConBox.value.charAt(i).charCodeAt() > 255 ? 1 : 0.5;
oMaxNum.innerHTML = Math.abs(maxNum - Math.floor(iLen));
maxNum - Math.floor(iLen) >= 0 ? (css(oMaxNum, "color", ""), oCountTxt.innerHTML = "\u8fd8\u80fd\u8f93\u5165", bSend = true) : (css(oMaxNum, "color", "#f60"),
oCountTxt.innerHTML = "\u5df2\u8d85\u51fa", bSend = false)
}
//加载即调用
confine();
//广播按钮鼠标划过样式
EventUtil.addHandler(oSendBtn, "mouseover", function () {this.className = "hover"});
//广播按钮鼠标离开样式
EventUtil.addHandler(oSendBtn, "mouseout", function () {this.className = ""});
//li鼠标划过/离开处理函数
function liHover()
{
for (i = 0; i < aLi.length; i++)
{
//li鼠标划过样式
EventUtil.addHandler(aLi[i], "mouseover", function (event)
{
this.className = "hover";
oTmp = get.byClass("times", this)[0];
var aA = get.byTagName("a", oTmp);
if (!aA.length)
{
var oA = document.createElement("a");
oA.innerHTML = "删除";
oA.className = "del";
oA.href = "javascript:;";
oTmp.appendChild(oA)
}
else
{
aA[0].style.display = "block";
}
});
//li鼠标离开样式
EventUtil.addHandler(aLi[i], "mouseout", function ()
{
this.className = "";
var oA = get.byTagName("a", get.byClass("times", this)[0])[0];
oA.style.display = "none"
})
}
}
liHover();
//删除功能
function delLi()
{
var aA = get.byClass("del", oUl);
for (i = 0; i < aA.length; i++)
{
aA[i].onclick = function ()
{
var oParent = this.parentNode.parentNode.parentNode;
var alpha = 100;
var iHeight = oParent.offsetHeight;
timer = setInterval(function ()
{
css(oParent, "opacity", (alpha -= 10));
if (alpha < 0)
{
clearInterval(timer);
timer = setInterval(function ()
{
iHeight -= 10;
iHeight < 0 && (iHeight = 0);
css(oParent, "height", iHeight + "px");
iHeight == 0 && (clearInterval(timer), oUl.removeChild(oParent))
},30)
}
},30);
this.onclick = null
}
}
}
delLi();
//输入框获取焦点时样式
for (i = 0; i < aFtxt.length; i++)
{
EventUtil.addHandler(aFtxt[i], "focus", function ()
{this.className = "active"});
EventUtil.addHandler(aFtxt[i], "blur", function () {this.className = ""})
}
//格式化时间, 如果为一位数时补0
function format(str)
{
return str.toString().replace(/^(\d)$/,"0$1")
}
//头像
for (i = 0; i < aImg.length; i++)
{
aImg[i].onmouseover = function ()
{
this.className += " hover"
};
aImg[i].onmouseout = function ()
{
this.className = this.className.replace(/\s?hover/,"")
};
aImg[i].onclick = function ()
{
for (i = 0; i < aImg.length; i++) aImg[i].className = "";
this.className = "current"
}
}
});
</script>
</head>
<body>
<div id="msgBox">
<form>
<h2>来 , 说说你在做什么 , 想什么</h2>
<div>
<input id="userName" class="f-text" value="" />
<p id="face"><img src="face1.gif" class="current" /><img src="face2.gif" /><img src="face1.gif" /><img src="face2.gif" /></p>
</div>
<div><input id="conBox" class="f-text"></div>
<div class="tr">
<p>
<span class="countTxt">还能输入</span><strong class="maxNum">140</strong><span>个字</span>
<input id="sendBtn" type="button" value="" title="快捷键 Ctrl+Enter" />
</p>
</div>
</form>
<div class="list">
<h3><span>大家在说</span></h3>
<ul>
<li>
<div class="userPic"><img src="face.gif" /></div>
<div class="content">
<div class="userName"><a href="javascript:;">日丶久生情</a>:</div>
<div class="msgInfo">新增Ctrl+Enter快捷键发送广播。</div>
<div class="times"><span>07月05日 12:20</span><a class="del" href="javascript:;">删除</a></div>
</div>
</li>
<li>
<div class="userPic"><img src="face.gif" /></div>
<div class="content">
<div class="userName"><a href="javascript:;">日丶久生情</a>:</div>
<div class="msgInfo">新增选择头像功能。</div>
<div class="times"><span>07月05日 12:08</span><a class="del" href="javascript:;">删除</a></div>
</div>
</li>
<li>
<div class="userPic"><img src="face.gif" /></div>
<div class="content">
<div class="userName"><a href="javascript:;">日丶久生情</a>:</div>
<div class="msgInfo">增加了记录广播时间的功能。</div>
<div class="times"><span>07月04日 16:55</span><a class="del" href="javascript:;">删除</a></div>
</div>
</li>
</ul>
</div>
</div>
</body>
</html>
以上所述就是本文给大家分享的全部内容了，希望大家能够喜欢。
Déclaration：
Le contenu de cet article est volontairement contribué par les internautes et les droits d'auteur appartiennent à l'auteur original. Ce site n'assume aucune responsabilité légale correspondante. Si vous trouvez un contenu suspecté de plagiat ou de contrefaçon, veuillez contacter admin@php.cn
Article précédent：jQuery implémente le gel des lignes et des colonnes du tableau_jqueryArticle suivant：jQuery implémente le gel des lignes et des colonnes du tableau_jquery
Articles Liés
Voir plus- Une analyse approfondie du composant de groupe de liste Bootstrap
- Explication détaillée du currying de la fonction JavaScript
- Exemple complet de génération de mot de passe JS et de détection de force (avec téléchargement du code source de démonstration)
- Angularjs intègre l'interface utilisateur WeChat (weui)
- Comment basculer rapidement entre le chinois traditionnel et le chinois simplifié avec JavaScript et l'astuce permettant aux sites Web de prendre en charge le basculement entre les compétences en chinois simplifié et traditionnel_javascript