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模态窗口.html
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<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>模态窗口</title>
<style type="text/css">
html,body,div,h3,p,span,a {
margin: 0;
padding: 0;
}
a {
text-decoration: none;
color: #000;
}
img {
border: none;
}
.news {
width: 600px;
height: 700px;
background-color: #ccc;
margin: 0 auto;
position: relative;
}
.news .sendNew {
position: absolute;
bottom: 20px;
left: 20px;
width: 100px;
line-height: 30px;
text-align: center;
background-color: #3cb4ff;
color: #fff;
cursor: pointer;
-webkit-user-select: none;
user-select: none;
}
.clearFix:before,.clearFix:after {
display: table;
content:"";
}
.clearFix:after {
clear: both;
}
.container {
width: 600px;
height: 630px;
margin: 0 auto;
overflow: auto;
}
.content {
width: 450px;
height: 180px;
margin: 20px auto;
border-bottom: 1px solid #999;
}
.content .con-img {
float: left;
width: 120px;
height: 150px;
-webkit-user-select: none;
user-select: none;
}
.content .con-img img {
width: 100%;
height: 100%;
-webkit-user-select: none;
user-select: none;
}
.content .con-title {
width: 320px;
white-space: nowrap;
text-overflow: ellipsis;
overflow: hidden;
-webkit-user-select: none;
user-select: none;
}
.content .con-new {
float: left;
width: 320px;
height: 120px;
text-indent: 2em;
-webkit-user-select: none;
user-select: none;
}
.new-container {
width: 100%;
height: 100%;
position: absolute;
background-color: rgba(0,0,0,0.5);
top: 0;
left: 0;
display: none;
}
.new-container .new-content {
width: 400px;
height: 200px;
position: absolute;
top: 50%;
left: 50%;
margin-top: -100px;
margin-left: -200px;
background-color: #fff;
padding-bottom: 30px;
}
.new-container .new-content .new-con-title {
width: 380px;
padding-left: 20px;
line-height: 30px;
background-color: #3cb4ff;
color: #fff;
margin-bottom: 10px;
cursor: move;
}
.new-container .new-content .new-con-top {
width: 400px;
height: 20px;
margin-bottom: 10px;
}
.new-container .new-content .new-con-top .new-con-input {
width: 300px;
}
.new-container .new-content .new-con-bottom {
width: 400px;
height: 100px;
}
.new-container .new-content .new-con-bottom .new-con-text {
width: 300px;
height: 80px;
resize: none;
}
.send-en {
height: 30px;
margin-top: 20px;
margin-bottom: 20px;
}
.ensure {
float: left;
width: 100px;
line-height: 30px;
text-align: center;
background-color: #3cb4ff;
color: #fff;
margin-left: 80px;
margin-bottom: 20px;
}
.cancel {
float: left;
width: 100px;
line-height: 30px;
text-align: center;
background-color: #c33;
color: #fff;
margin-left: 20px;
}
.show {
text-align: right;
}
</style>
</head>
<body>
<div class="news">
<div class="container clearFix">
<div class="content">
<a href="#" class="con-img"><img src="imgs/news.png" /></a>
<h3 class="con-title"><a href="#">习近平同特朗普通电话 特朗普：坚持奉行一个中国政策</a></h3>
<p class="con-new">
<a href="#">习近平祝贺特朗普正式就任美国总统，感谢特朗普2月8日来信就元宵
节和中国农历鸡年向中国人民致以节日祝福，对特朗普表示愿意努力拓展中美合作、
发展惠及中美两国和国际社会的建设性双边关系表示高度赞赏……</a><br>
<span class="con-date">2017-02-10 12:10</span>
</p>
</div>
</div>
<div class="sendNew">发布新闻</div>
</div>
<div class="new-container">
<div class="new-content">
<p class="new-con-title">新闻发布</p>
<div class="new-con-top">
<span>新闻标题</span>
<input type="text" class="new-con-input"/>
</div>
<div class="new-con-bottom">
<span>新闻内容</span>
<textarea class="new-con-text" maxlength ="150" ></textarea>
<p class="show"></p>
</div>
<div class="send-en">
<a class="ensure" href="javascript:;">确定</a>
<a class="cancel" href="javascript:;">取消</a>
</div>
</div>
</div>
<script src="js/$.js"></script>
<script type="text/javascript">
"use strict";
window.onload = function(){
var sendNew = $('.sendNew')[0],
newContainer = $('.new-container')[0],
newcontitle = $('.new-con-title')[0],
newcontent = $('.new-content')[0],
newconInput = $('.new-con-input')[0],
newconText = $('.new-con-text')[0],
container = $('.container')[0],
content = $('.content')[0],
ensure = $('.ensure')[0],
cancel = $('.cancel')[0],
show = $('.show')[0],
flag = false;
newconText.addEventListener('focus',showT,false);
newconText.addEventListener('blur',function(){
show.innerHTML = '';
},false);
newconText.addEventListener('input',showT,false);
function showT(){
var v = newconText.value,
sum = 150-(v.length);
if(sum < 0 ){
sum = 0;
return;
}
show.innerHTML = '还可以输'+sum+'个字';
}
sendNew.addEventListener("click",function(){
flag = true;
newContainer.style.display = 'block';
newcontent.style.left = '50%';
newcontent.style.top = '50%';
newconInput.value = '';
newconText.value = '';
},false)
window.onresize = function(){
newcontent.style.left = '50%';
newcontent.style.top = '50%';
}
cancel.addEventListener("click",function(){
newContainer.style.display = 'none';
flag = false;
},false)
ensure.addEventListener("click",send,false)
document.onkeydown = function(e){
e = e || window.event;
var code = e.keyCode || e.which;
if(e.ctrlKey == true && code == 13){
send();
}
}
function send(){
var t = newconInput.value,
c = newconText.value;
var date = new Date(),
y = date.getFullYear(),
m = date.getMonth()+1,
m = add0(m),
d = date.getDate(),
d = add0(d),
h = date.getHours(),
h = add0(h),
mi = date.getMinutes(),
mi = add0(mi);
var div1 = document.createElement('div');
div1.className = 'content';
div1.innerHTML = `<a href="#" class="con-img"><img src="imgs/news.png" /></a>
<h3 class="con-title"><a href="#">`+t+`</a></h3>
<p class="con-new">
<a href="#">`+c+`</a><br>
<span class="con-date">`+y+`-`+m+`-`+d+` `+h+`:`+mi+`</span></p>`;
if(!flag){
return;
}
if(c.trim() == '' || t.trim() == ''){
alert("发布内容不能为空");
return;
}
if(c.length > 150){
alert("字数超过限制（150字）");
return;
}
var first = container.firstElementChild;
container.insertBefore(div1,first);
newContainer.style.display = 'none';
flag = false;
}
newcontitle.addEventListener('mousedown',function(){
document.onmousemove = function(e){
e = e || window.event;
e.preventDefault ? e.preventDefault() : e.returnValue = false;
var x = e.clientX, //鼠标距可视文档左边的距离
y = e.clientY,//鼠标距可视文档上边的距离
cw = newcontent.offsetWidth,//小div宽，移动的模态框
ch = newcontent.offsetHeight,//小div高
ncw = newContainer.offsetWidth,//可视文档宽
nch = newContainer.offsetHeight,//可视文档高
th = newcontitle.offsetHeight;//小div的title高。宽跟div一样
var l = x < cw/2 ? 0 : (x > ncw-cw/2 ? ncw-cw : x - cw/2);
var t = y < th/2 ? th/2-ch/2 : (y > nch-(ch-th/2) ? nch-ch-ch/2+th/2 : y-ch/2);
newcontent.style.left = l+cw/2 +'px';
newcontent.style.top = t+ch-th+'px';
}
document.onmouseup = function(){
document.onmousemove = null;
}
},false);
}
</script>
</body>
</html>