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| (function(global){
function EasyTimer(_cfg){
var defaultConfig = {
allTimes : 0,
day : 'timer_day',
hour : 'timer_hour',
minu : 'timer_minu',
sec : 'timer_sec',
interval : 1,
defaultFormat : '{d}天{h}时{m}分{s}秒',
set : {'s' : 59, 'm' : 59, 'h' : 23},
direction : 0,
immediate : false,
isdebug : false,
ok : '',
callback : ''
};
this.cfg = mix(defaultConfig, _cfg);
this.allTimes = this.cfg.allTimes;
this.defaultFormat = true;
if( !this.cfg.format ){
this.format = this.cfg.defaultFormat;
}else{
this.defaultFormat = false;
this.format = this.cfg.format;
}
if( this.cfg.renderTo ){
this.renderTo = this.cfg.renderTo;
}else{
throw new Error("参数中，缺少定时器|倒计时的render元素");
return ;
}
this.day = 0;
this.hour = 0;
this.minu = 0;
this.sec = 0;
this.interval = this.cfg.interval;
this.over = false;
this.direction = this.cfg.direction;
this.ok = this.cfg.ok;
this.callback = this.cfg.callback;
this.invoke = function(){};
this.init();
}
EasyTimer.prototype = {
init : function(){
var allTimes = this.allTimes = this.allTimes && parseInt(this.allTimes, 10);
if( this.cfg.immediate )this.start();
this.initTimer( this.direction );
this.showTime('a');
},
initTimer : function( direction ){
var allTimes = this.allTimes
if( !this.direction ){
if( allTimes > 0 && allTimes < 60 ){
this.sec = this.allTimes;
}else{
this.day = parseInt(allTimes / 86400, 10);
allTimes %= 86400;
this.hour = parseInt(allTimes / 3600, 10);
allTimes %= 3600;
this.minu = parseInt(allTimes / 60, 10);
allTimes %= 60
this.sec = allTimes;
}
}else{
this.maxDay = parseInt(allTimes / 86400, 10);
}
this.invoke = ( !this.direction ) ?
function (unit, isSec){
var el = this;
return arguments[0] - ((isSec) ? el.interval : 1);
} :
function(unit, isSec){
var el = this;
return arguments[0] + ((isSec) ? el.interval : 1);
};
},
start : function(){
if( this.allTimes > 0){
this.startTimeCount();
}else{
this.over = true;
}
},
startTimeCount : function(){
var el = this;
window.setTimeout(function(){
el.timeCount();
}, this.interval * 1000);
},
timeCount : function(){
this.updateSec();
if( !this.over ){
this.startTimeCount();
}
},
reset : function(direction, e){
var set = this.cfg.set;
return ( !direction ) ? set[e] : 0;
},
checkNext : function( direction , val, e ){
var set = this.cfg.set;
return ( !direction ) ? val > 0 : val < set[e];
},
updateSec : function(){
var next = this.checkNext(this.direction, this.sec, 's');
if( next ){
this.sec = this.invoke(this.sec, true) ;
}else if( !this.over ){
this.sec = this.reset(this.direction, 's');
this.updateMinu();
}
this.checkOver();
this.showTime('s');
},
updateMinu : function(){
var next = this.checkNext(this.direction, this.minu, 'm');
if( next ){
this.minu = this.invoke(this.minu);
}else if( !this.over ){
this.minu = this.reset(this.direction, 'm');
this.updateHour();
}
this.showTime('m');
},
updateHour : function(){
var next = this.checkNext(this.direction, this.hour, 'h');;
if( next ){
this.hour = this.invoke(this.hour);
}else if( !this.over ){
this.hour = this.reset(this.direction, 'h');
this.updateDay();
}
this.showTime('h');
},
updateDay : function(){
var day = this.day,
next = ( !this.direction ) ? day < this.maxDay : day > 0;
if( next ){
this.day = this.invoke(this.day);
this.showTime('d');
}
},
ctinue : function(){
this.over = false;
this.startTimeCount();
},
stop : function(clear){
if( clear ){
this.day = this.hour = this.minu = this.sec = 0;
this.showTime('a');
this.pause();
}
},
pause :function(){
this.over = true;
},
checkOver : function(){
var el = this;
this.allTimes = this.allTimes - this.interval;
this.over = this.allTimes <= 0 ? true : false;
// TODO : 定时器完成方法调用
if(this.over && isFunction(el.ok)){
this.ok();
}
// TODO : 定时器间隔方法调用
if( this.callback && isFunction(el.callback) ){
this.callback(this);
}
},
showTime : function( type ){
var el = this, split = ( el.format.split(/\{\w\}/g).length -1 ) >= 1;
if( this.defaultFormat || split){
try{
getElement(el.renderTo).innerHTML = format(el.format, {d : el.day, h : el.hour, m : el.minu, s : el.sec});
if(this.cfg.isdebug){
console.log('格式化结果是:'
+format(el.format, {d : el.day, h : el.hour, m : el.minu, s : el.sec})
+"---传入的参数是{ d:"+el.day +', h:'+ el.hour +', m:' + el.minu +', s:'+ el.sec +'}');
}
}catch (err){
alert('更新时间出错，异常类型是'+ err.name +'错误信息是：'+err.message);
}
}else{
var origin = {
d : [el.cfg.day, el.day],
h : [el.cfg.hour, el.hour],
m : [el.cfg.minu, el.minu],
s : [el.cfg.sec, el.sec]
};
if(origin[type]){
getElement(origin[type][0]).innerHTML = padZero(origin[type][1]);
}else{
for(var p in origin){
if( origin.hasOwnProperty(p)){
getElement(origin[p][0]).innerHTML = padZero(origin[p][1]);
}
}
}
}
}
};
// Helpers
// --------------------------------------------------------------------------
function mix(r, s, wl){
for(var p in s){
if( s.hasOwnProperty(p) ){
if( wl && indexOf(wl, p) === -1)continue;
if( p !== 'prototype' ){
r[p] = s[p];
}
}
}
return r;
}
var toString = Object.prototype.toString;
var isFunction = function( val ){
//console.log('val==='+ val.toSource() +',是否是函数：'+(toString.call( val ) === '[object Function]'));
return toString.call( val ) === '[object Function]';
};
var arrProto = Array.prototype;
var indexOf = arrProto.indexOf ?
function( arr, item ){
return arr.indexOf(item);
} :
function( arr, item ){
for(var i = 0, len = arr.length; i< len; i++){
if( arr[i] === item ){
return i;
}
}
return -1;
};
function format( origin ){
var args = arrProto.slice.call(arguments, 1);
var REG_FORMAT_TOKEN = /\{(\w)\}/g;
return origin.replace(REG_FORMAT_TOKEN, function( m, i ){
return args[ 0 ][ i ] ? padZero(args[ 0 ][ i ]) : '00';
});
}
function padZero(num, len, pos){
len = len || 2;
if(num.toString().length >= len){return num;}
if( pos ){
return padZero( num + '0', len, pos);
}
return padZero( '0' + num , len, pos);
}
function getElement( elemStr ){
var elem = null;
elem = elemStr.charAt('0') === '#'
? document.getElementById(elemStr.substring(1)) : elemStr.charAt('') === '.' ?
document.getElementsByClassName(elemStr.substring(1))[0] :
document.getElementById(elemStr);
return elem;
}
global.EasyTimer = EasyTimer;
})(this);
|