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timer(jq).html
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<!-- 主流浏览器最小化时会停止timeOut计时，如需考虑前后端同步秒数 必须使用计时器写法2（通过时间戳计时） -->
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>
计时器、时钟
</title>
<style>
.bg{
background-color:#ff4a00;
height:100px;
color:#FFF;
font-size:14px;
margin:10px 0px 0px 0px;
padding: 10px;
border-radius: 10px;
}
.time-val{
color:'#fff';
font-size:30px;
}
.count_down{
font-size:20px;
line-height: 100px;
width:100px;
margin:0 auto;
text-align: center;
}
html{
background: url(./images/timer_bg.jpg) #eb9ba7;
}
/*-------------------------
The clocks
--------------------------*/
#clock{
width:370px;
padding:40px;
margin:30px auto 50px;
position:relative;
}
#clock:after{
content:'';
position:absolute;
width:400px;
height:20px;
border-radius:100%;
left:50%;
margin-left:-200px;
bottom:2px;
z-index:-1;
}
#clock .display{
text-align:center;
padding: 40px 20px 20px;
border-radius:6px;
position:relative;
height: 54px;
}
/*-------------------------
Light color theme
--------------------------*/
#clock.light{
background-color:#f3f3f3;
color:#272e38;
}
#clock.light:after{
box-shadow:0 4px 10px rgba(0,0,0,0.15);
}
#clock.light .digits div span{
background-color:#272e38;
border-color:#272e38;
}
#clock.light .digits div.dots:before,
#clock.light .digits div.dots:after{
background-color:#272e38;
}
#clock.light .display{
background-color:#dddddd;
box-shadow:0 1px 1px rgba(0,0,0,0.08) inset, 0 1px 1px #fafafa;
}
/*-------------------------
Dark color theme
--------------------------*/
#clock.dark{
background-color:#272e38;
color:#cacaca;
}
#clock.dark:after{
box-shadow:0 4px 10px rgba(0,0,0,0.3);
}
#clock.dark .digits div span{
background-color:#cacaca;
border-color:#cacaca;
}
#clock.dark .display{
background-color:#0f1620;
box-shadow:0 1px 1px rgba(0,0,0,0.08) inset, 0 1px 1px #2d3642;
}
#clock.dark .digits div.dots:before,
#clock.dark .digits div.dots:after{
background-color:#cacaca;
}
/*-------------------------
The Digits
--------------------------*/
#clock .digits div{
text-align:left;
position:relative;
width: 28px;
height:50px;
display:inline-block;
margin:0 4px;
}
#clock .digits div span{
opacity:0;
position:absolute;
-webkit-transition:0.25s;
-moz-transition:0.25s;
transition:0.25s;
}
#clock .digits div span:before,
#clock .digits div span:after{
content:'';
position:absolute;
width:0;
height:0;
border:5px solid transparent;
}
#clock .digits .d1{ height:5px;width:16px;top:0;left:6px;}
#clock .digits .d1:before{ border-width:0 5px 5px 0;border-right-color:inherit;left:-5px;}
#clock .digits .d1:after{ border-width:0 0 5px 5px;border-left-color:inherit;right:-5px;}
#clock .digits .d2{ height:5px;width:16px;top:24px;left:6px;}
#clock .digits .d2:before{ border-width:3px 4px 2px;border-right-color:inherit;left:-8px;}
#clock .digits .d2:after{ border-width:3px 4px 2px;border-left-color:inherit;right:-8px;}
#clock .digits .d3{ height:5px;width:16px;top:48px;left:6px;}
#clock .digits .d3:before{ border-width:5px 5px 0 0;border-right-color:inherit;left:-5px;}
#clock .digits .d3:after{ border-width:5px 0 0 5px;border-left-color:inherit;right:-5px;}
#clock .digits .d4{ width:5px;height:14px;top:7px;left:0;}
#clock .digits .d4:before{ border-width:0 5px 5px 0;border-bottom-color:inherit;top:-5px;}
#clock .digits .d4:after{ border-width:0 0 5px 5px;border-left-color:inherit;bottom:-5px;}
#clock .digits .d5{ width:5px;height:14px;top:7px;right:0;}
#clock .digits .d5:before{ border-width:0 0 5px 5px;border-bottom-color:inherit;top:-5px;}
#clock .digits .d5:after{ border-width:5px 0 0 5px;border-top-color:inherit;bottom:-5px;}
#clock .digits .d6{ width:5px;height:14px;top:32px;left:0;}
#clock .digits .d6:before{ border-width:0 5px 5px 0;border-bottom-color:inherit;top:-5px;}
#clock .digits .d6:after{ border-width:0 0 5px 5px;border-left-color:inherit;bottom:-5px;}
#clock .digits .d7{ width:5px;height:14px;top:32px;right:0;}
#clock .digits .d7:before{ border-width:0 0 5px 5px;border-bottom-color:inherit;top:-5px;}
#clock .digits .d7:after{ border-width:5px 0 0 5px;border-top-color:inherit;bottom:-5px;}
/* 1 */
#clock .digits div.one .d5,
#clock .digits div.one .d7{
opacity:1;
}
/* 2 */
#clock .digits div.two .d1,
#clock .digits div.two .d5,
#clock .digits div.two .d2,
#clock .digits div.two .d6,
#clock .digits div.two .d3{
opacity:1;
}
/* 3 */
#clock .digits div.three .d1,
#clock .digits div.three .d5,
#clock .digits div.three .d2,
#clock .digits div.three .d7,
#clock .digits div.three .d3{
opacity:1;
}
/* 4 */
#clock .digits div.four .d5,
#clock .digits div.four .d2,
#clock .digits div.four .d4,
#clock .digits div.four .d7{
opacity:1;
}
/* 5 */
#clock .digits div.five .d1,
#clock .digits div.five .d2,
#clock .digits div.five .d4,
#clock .digits div.five .d3,
#clock .digits div.five .d7{
opacity:1;
}
/* 6 */
#clock .digits div.six .d1,
#clock .digits div.six .d2,
#clock .digits div.six .d4,
#clock .digits div.six .d3,
#clock .digits div.six .d6,
#clock .digits div.six .d7{
opacity:1;
}
/* 7 */
#clock .digits div.seven .d1,
#clock .digits div.seven .d5,
#clock .digits div.seven .d7{
opacity:1;
}
/* 8 */
#clock .digits div.eight .d1,
#clock .digits div.eight .d2,
#clock .digits div.eight .d3,
#clock .digits div.eight .d4,
#clock .digits div.eight .d5,
#clock .digits div.eight .d6,
#clock .digits div.eight .d7{
opacity:1;
}
/* 9 */
#clock .digits div.nine .d1,
#clock .digits div.nine .d2,
#clock .digits div.nine .d3,
#clock .digits div.nine .d4,
#clock .digits div.nine .d5,
#clock .digits div.nine .d7{
opacity:1;
}
/* 0 */
#clock .digits div.zero .d1,
#clock .digits div.zero .d3,
#clock .digits div.zero .d4,
#clock .digits div.zero .d5,
#clock .digits div.zero .d6,
#clock .digits div.zero .d7{
opacity:1;
}
/* The dots */
#clock .digits div.dots{
width:5px;
}
#clock .digits div.dots:before,
#clock .digits div.dots:after{
width:5px;
height:5px;
content:'';
position:absolute;
left:0;
top:14px;
}
#clock .digits div.dots:after{
top:34px;
}
/*-------------------------
Weekdays
--------------------------*/
#clock .weekdays{
font-size:12px;
position:absolute;
width:100%;
top:10px;
left:0;
text-align:center;
}
#clock .weekdays span{
opacity:0.2;
padding:0 10px;
}
#clock .weekdays span.active{
opacity:1;
}
/*-------------------------
AM/PM
--------------------------*/
#clock .ampm{
position:absolute;
bottom:20px;
right:20px;
font-size:12px;
}
/*-------------------------
Button
--------------------------*/
.button-holder{
text-align:center;
padding-bottom:100px;
}
a.button{
background-color:#f6a7b3;
background-image:-webkit-linear-gradient(top, #f6a7b3, #f0a3af);
background-image:-moz-linear-gradient(top, #f6a7b3, #f0a3af);
background-image:linear-gradient(top, #f6a7b3, #f0a3af);
border:1px solid #eb9ba7;
border-radius:2px;
box-shadow:0 2px 2px #ccc;
color:#fff;
text-decoration: none !important;
padding:15px 20px;
display:inline-block;
cursor:pointer;
position:relative;
z-index: 1;
}
a.button:hover{
opacity:0.9;
}
</style>
<link rel="icon" href="favicon.ico" type="image/x-icon" />
<link rel="shortcut icon" href="favicon.ico" type="image/x-icon" />
</head>
<body>
<div id="con_apa" , class='bg'>
倒计时
<span> 时间（秒）:</span>
<span id='time_val' class='time-val'> </span>
<input type="button" class='on' id='timeBtn' value='启动'>
<input type="button" id='resetTimeBtn' value='复位时间'>
</div>
<!-- <div id="con_apa2" , class='bg'>
</div> -->
<div id="clock" class="light">
<div class="display">
<div class="weekdays"></div>
<div class="ampm"></div>
<div class="digits"></div>
</div>
</div>
<div class="button-holder">
<a id="switch-theme" class="button">Switch Theme</a>
</div>
<script src="lib/jquery-1.10.2.min.js", type="text/javascript"></script>
<script src="lib/moment.min.js"></script>
<script>
$(function() {
// 计时器写法1
function countDown1_init() {
var val_time = 60,
isFirstStart = true,
startTime = 0,
timer = null,
flag = true;
$('#time_val').text(val_time);
$('#timeBtn').on('click', startOrStopTime)
$('#resetTimeBtn').on('click', resetTime)
// 启动、关闭时间
function startOrStopTime(){
var _val_time = 0;
$this = $(this);
if ( $this.hasClass('on') ){
$this.val('关闭');
$this.removeClass('on').addClass('off');
flag = true;
if(isFirstStart){
startTime = new Date().getTime();
isFirstStart = false;
}
_val_time = parseInt( $('#time_val').text(), 10 );
// 获取相对于上次停止时间的时间值
if (_val_time < 60){
startTime = new Date().getTime() - (60 - _val_time) * 1000;
}
timer = setTimeout(updateTime, 1000);
}else if( $this.hasClass('off') ){
$this.val('启动');
$this.removeClass('off').addClass('on');
flag = false;
}
}
// 复位时间
function resetTime(){
val_time = 60;
// isFirstStart = true;
startTime = new Date().getTime();
$('#time_val').text(val_time);
}
function updateTime(){
var nowTime = new Date().getTime();
val_time = Math.floor( (nowTime - startTime)/1000 );
if (val_time > 60 || val_time < 0){
val_time = 0;
}
val_time = 60 - val_time;
if (val_time == 0 || !flag) {
clearTimeout(timer);
return;
}
$('#time_val').text(val_time);
timer = setTimeout(updateTime, 1000);
}
}
// var $countDownWrap = $('#con_apa2');
/**
* 3分钟的倒计时(计时器写法2)： 实际项目中， 计时器与业务逻辑解耦优雅实现
*/
var CountDown2 = {
//倒计时的总时间
totalTime : 3 * 60,
count : 0,
//启动倒计时的初始时间
startTime : 0,
// 计时器的速度
time : 1000,
countDownObj : null,
/**
* 初始化
* 初始化节点，需要传父节点对象作为参数
* @param {object} parent 计时器容器节点，jq对象
*/
init : function(parent) {
if (parent && parent.length > 0) {
this.initDom(parent);
}
},
minObj : null,
secObj : null,
initDom : function(parent) {
var dom_str = '',
$countDownDom = null;
dom_str = '<div class="count_down">' +
'<span class="min">03</span>' +
'<span class="separate">:</span>' +
'<span class="sec">00</span>' +
'</div>';
$countDownDom = $(dom_str);
parent.append($countDownDom);
this.countDownObj = parent.find('.count_down');
this.minObj = this.countDownObj.find('.min');
this.secObj = this.countDownObj.find('.sec');
},
callback : null,
start : function(callback) {
var This = this, date = new Date();
this.callback = callback;
this.startTime = date.getTime();
window.setTimeout(function() {
This.startTimer();
}, this.time);
},
/**
* 开始 倒计时
*/
startTimer : function() {
var This = this, timeObj = null, nowTime = new Date().getTime();
this.count = parseInt( (nowTime - this.startTime)/1000, 10 );
if (this.count >= this.totalTime) {//到时间了
if ( typeof this.callback === 'function') {
this.callback();
}
this.reset();
this.startTimer();
return false;
}
timeObj = this.calculateTime(this.totalTime - this.count);
// 根据数字更新 节点信息, 分钟 跟 秒数各一个变量即可
this.updateDom(timeObj);
this.timeout = window.setTimeout(function() {
This.startTimer();
}, this.time);
},
stopTimer : function() {
window.clearTimeout(this.timeout);
},
calculateTime: function(sec){
// 根据传入的秒数计算出 分钟及秒数
var min, sec, result;
if (sec == 0){
result = {
'min': '00',
'sec': '00'
};
}
min = Math.floor( sec/60 );
sec = sec % 60;
result = {
'min': doubleNum(min),
'sec': doubleNum(sec)
};
return result;
function doubleNum(num){
var rel = 0;
if (num >= 10) {
rel = num;
}else {
rel = '0' + num;
}
return rel;
}
},
/**
* 重新设置 初始的时间
*/
reset : function() {
this.count = 0;
this.startTime = new Date().getTime();
this.minObj.html('00');
this.secObj.html('00');
},
/**
* 更新 节点
*/
updateDom : function(timeObj) {
this.minObj.html(timeObj.min);
this.secObj.html(timeObj.sec);
}
};
// 时间到了后的业务函数
function timeOutFn(){
alert('倒计时间到，处理业务吧！');
}
// 计时器写法3（xxx天xxx时xxx分xxx秒）
// opt.type（int 非必填）
// 0: 默认方式 单一dom节点显示“xxx天xxx时xxx分xxx秒”
// 1: 扩展方式 xxx天 xxx时 xxx分 xxx秒 四个dom节点显示
// opt.startTime(int 非必填) 倒计时起始时间默认为当前系统时间（业务上一般传入服务器获取的北京时间）的时间戳
// opt.endTime（int 必填） 倒计时结束时间的时间戳
// opt.countdownEvent(非必填) 每过一秒回调函数，回调函数包含参数{'d': 'xxx','h':'xxx','m':'xxx','s':'xxx'}
var CountDown3 = {
startTime : 0,
endTime: 0,
init: function(opt){},
start: function(){},
stop: function(){},
reset: function(){}
};
// 计时器3 私有方法(待更新：将使用寄生组合式继承实现：https://www.zhihu.com/question/22232912)
// 计时器1启动
countDown1_init();
// 计时器2启动
// CountDown2.init($countDownWrap);
// CountDown2.start(timeOutFn);
// 数字时钟启动(该数字时钟效果代码来自互联网：http://www.cnblogs.com/i7758/p/5081602.html)
initDigitsTimer();
function initDigitsTimer(){
var clock = $('#clock'),
ampm = clock.find('.ampm');
// Map digits to their names (this will be an array)
var digit_to_name = 'zero one two three four five six seven eight nine'.split(' ');
// This object will hold the digit elements
var digits = {};
// Positions for the hours, minutes, and seconds
var positions = [
'h1', 'h2', ':', 'm1', 'm2', ':', 's1', 's2'
];
// Generate the digits with the needed markup,
// and add them to the clock
var digit_holder = clock.find('.digits');
$.each(positions, function(){
var digit_item_str = '';
if(this == ':'){
digit_holder.append('<div class="dots">');
} else {
var pos = $('<div>');
for(var i=1; i<8; i++){
digit_item_str += '<span class="d' + i + '"></span>';
}
pos.append(digit_item_str);
// Set the digits as key:value pairs in the digits object
digits[this] = pos;
// Add the digit elements to the page
digit_holder.append(pos);
}
});
// Add the weekday names
var weekday_names = 'MON TUE WED THU FRI SAT SUN'.split(' '),
weekday_holder = clock.find('.weekdays');
$.each(weekday_names, function(){
weekday_holder.append('<span>' + this + '</span>');
});
var weekdays = clock.find('.weekdays span');
// Run a timer every second and update the clock
(function update_time(){
// Use moment.js to output the current time as a string
// hh is for the hours in 12-hour format,
// mm - minutes, ss-seconds (all with leading zeroes),
// d is for day of week and A is for AM/PM
var now = moment().format("hhmmssdA");
digits.h1.attr('class', digit_to_name[now[0]]);
digits.h2.attr('class', digit_to_name[now[1]]);
digits.m1.attr('class', digit_to_name[now[2]]);
digits.m2.attr('class', digit_to_name[now[3]]);
digits.s1.attr('class', digit_to_name[now[4]]);
digits.s2.attr('class', digit_to_name[now[5]]);
// The library returns Sunday as the first day of the week.
// Stupid, I know. Lets shift all the days one position down,
// and make Sunday last
var dow = now[6];
dow--;
// Sunday!
if(dow < 0){
// Make it last
dow = 6;
}
// Mark the active day of the week
weekdays.removeClass('active').eq(dow).addClass('active');
// Set the am/pm text:
ampm.text(now[7]+now[8]);
// Schedule this function to be run again in 1 sec
setTimeout(update_time, 1000);
})();
// Switch the theme
$('#switch-theme').click(function(){
clock.toggleClass('light dark');
});
}
});
</script>
</body>
</html>