mui封装点击位置出现按钮
html内容：
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width,initial-scale=1,minimum-scale=1,maximum-scale=1,user-scalable=no" />
<title></title>
<script src="js/mui.min.js"></script>
<link href="css/mui.min.css" rel="stylesheet"/>
<script type="text/javascript" src="js/chajian.js">
</script>
<script type="text/javascript" charset="utf-8">
mui.init({
gestureConfig:{
tap: true, //默认为true
doubletap: true, //默认为false
longtap: true, //默认为false
swipe: true, //默认为true
drag: true, //默认为true
hold:false,//默认为false，不监听
release:false//默认为false，不监听
}
});
</script>
</head>
<body>
<div id="aa">
</div>
</body>
<script type="text/javascript">
window.onload=function(){
var item=[ //这是创建菜单，url是链接，title是列表内容
{
"url1":"http://lininn.cn",
"title":"lining"
},
{
"url1":"http://ningli.win",
"title":"music"
},{
"url1":"http://ningli.win",
"title":"music"
},
{
"url1":"http://ningli.win",
"title":"music"
}
];
mui.AddMenu(item,"#bb"); //这是渲染菜单，后面的是给起个id名
//console.log(mui);
}
var aid=document.getElementById("aa");
touchEvent.longTap(aid,function(){ //aid是指的被点击的元素，obja
mui.ShowI("#bb"); //这里表示显示上面定义的菜单
})
</script>
<style type="text/css">
#aa{
height: 600px;
width: 300px;
background: red;
margin-top: 200px;
}
</style>
</html>
js文件：
(function($){
$.extend({
AddMenu:function(obj,pid){
this.str="";
pid=pid.substr(1);
this.obj=obj;
this.str='<div id="'+pid+'" class="mui-popover"><ul class="mui-table-view">'
for(i in this.obj){
this.str+='<li class="mui-table-view-cell"><a href="'+obj[i].url1+'">'+obj[i].title+'</a></li>'
}
this.str+=" </ul></div>";
document.body.insertAdjacentHTML("beforeend",this.str);
console.log(this.str);
},
ShowI:function(aid){
mui(aid).popover('show');
aid=aid.substr(1);
var id= document.getElementById(aid);
var vW=window.innerWidth;
var vH=window.innerHeight;
var ow=id.offsetWidth;
var oh=id.offsetHeight;
var st=document.body.scrollTop;
var pax=eva.touches[0].pageX;
var pay=eva.touches[0].pageY;
if(pax>=vW-ow){
pax=pax-ow;
if(pax<=0){
pax=0;
}
}
if((pay+oh)>=(st+vH)){
pay=pay-oh;
}
id.style.left=pax+"px";
id.style.top=pay+"px";
}
});
})(mui);
var touchEvent={
/*单次触摸事件*/
tap:function(element,fn){
var startTx, startTy;
element.addEventListener('touchstart',function(e){
var touches = e.touches[0];
startTx = touches.clientX;
startTy = touches.clientY;
}, false );
element.addEventListener('touchend',function(e){
var touches = e.changedTouches[0],
endTx = touches.clientX,
endTy = touches.clientY;
// 在部分设备上 touch 事件比较灵敏，导致按下和松开手指时的事件坐标会出现一点点变化
if( Math.abs(startTx - endTx) < 6 && Math.abs(startTy - endTy) < 6 ){
fn();
}
}, false );
},
/*两次触摸事件*/
doubleTap:function(element,fn){
var isTouchEnd = false,
lastTime = 0,
lastTx = null,
lastTy = null,
firstTouchEnd = true,
body = document.body,
dTapTimer, startTx, startTy, startTime;
element.addEventListener( 'touchstart', function(e){
if( dTapTimer ){
clearTimeout( dTapTimer );
dTapTimer = null;
}
var touches = e.touches[0];
startTx = touches.clientX;
startTy = touches.clientY;
}, false );
element.addEventListener( 'touchend',function(e){
var touches = e.changedTouches[0],
endTx = touches.clientX,
endTy = touches.clientY,
now = Date.now(),
duration = now - lastTime;
// 首先要确保能触发单次的 tap 事件
if( Math.abs(startTx - endTx) < 6 && Math.abs(startTx - endTx) < 6 ){
// 两次 tap 的间隔确保在 500 毫秒以内
if(duration < 301 ){
// 本次的 tap 位置和上一次的 tap 的位置允许一定范围内的误差
if( lastTx !== null &&
Math.abs(lastTx - endTx) < 45 &&
Math.abs(lastTy - endTy) < 45 ){
firstTouchEnd = true;
lastTx = lastTy = null;
fn();
}
}
else{
lastTx = endTx;
lastTy = endTy;
}
}
else{
firstTouchEnd = true;
lastTx = lastTy = null;
}
lastTime = now;
}, false );
// 在 iOS 的 safari 上手指敲击屏幕的速度过快，
// 有一定的几率会导致第二次不会响应 touchstart 和 touchend 事件
// 同时手指长时间的touch不会触发click
if(~navigator.userAgent.toLowerCase().indexOf('iphone os')){
body.addEventListener( 'touchstart', function(e){
startTime = Date.now();
}, true );
body.addEventListener( 'touchend', function(e){
var noLongTap = Date.now() - startTime < 501;
if(firstTouchEnd ){
firstTouchEnd = false;
if( noLongTap && e.target === element ){
dTapTimer = setTimeout(function(){
firstTouchEnd = true;
lastTx = lastTy = null;
fn();
},400);
}
}
else{
firstTouchEnd = true;
}
}, true );
// iOS 上手指多次敲击屏幕时的速度过快不会触发 click 事件
element.addEventListener( 'click', function( e ){
if(dTapTimer ){
clearTimeout( dTapTimer );
dTapTimer = null;
firstTouchEnd = true;
}
}, false );
}
},
/*长按事件*/
longTap:function(element,fn){
var startTx, startTy, lTapTimer;
element.addEventListener( 'touchstart', function(e){
if( lTapTimer ){
clearTimeout( lTapTimer );
lTapTimer = null;
}
var touches = e.touches[0];
startTx = touches.clientX;
startTy = touches.clientY;
lTapTimer = setTimeout(function(){
fn();
},300);
e.preventDefault();
eva=e;
}, false );
element.addEventListener( 'touchmove', function( e ){
var touches = e.touches[0],
endTx = touches.clientX,
endTy = touches.clientY;
if( lTapTimer && (Math.abs(endTx - startTx) > 5 || Math.abs(endTy - startTy) > 5) ){
clearTimeout( lTapTimer );
lTapTimer = null;
}
}, false );
element.addEventListener( 'touchend', function( e ){
if( lTapTimer ){
clearTimeout( lTapTimer );
lTapTimer = null;
}
}, false );
},
/*滑屏事件*/
swipe:function(element,fn){
var isTouchMove, startTx, startTy;
element.addEventListener( 'touchstart', function( e ){
var touches = e.touches[0];
startTx = touches.clientX;
startTy = touches.clientY;
isTouchMove = false;
}, false );
element.addEventListener( 'touchmove', function( e ){
isTouchMove = true;
e.preventDefault();
}, false );
element.addEventListener( 'touchend', function( e ){
if( !isTouchMove ){
return;
}
var touches = e.changedTouches[0],
endTx = touches.clientX,
endTy = touches.clientY,
distanceX = startTx - endTx
distanceY = startTy - endTy,
isSwipe = false;
if( Math.abs(distanceX)>20||Math.abs(distanceY)>20 ){
fn();
}
}, false );
},
/*向上滑动事件*/
swipeUp:function(element,fn){
var isTouchMove, startTx, startTy;
element.addEventListener( 'touchstart', function( e ){
var touches = e.touches[0];
startTx = touches.clientX;
startTy = touches.clientY;
isTouchMove = false;
}, false );
element.addEventListener( 'touchmove', function( e ){
isTouchMove = true;
e.preventDefault();
}, false );
element.addEventListener( 'touchend', function( e ){
if( !isTouchMove ){
return;
}
var touches = e.changedTouches[0],
endTx = touches.clientX,
endTy = touches.clientY,
distanceX = startTx - endTx
distanceY = startTy - endTy,
isSwipe = false;
if( Math.abs(distanceX) < Math.abs(distanceY) ){
if( distanceY > 20 ){
fn();
isSwipe = true;
}
}
}, false );
},
/*向下滑动事件*/
swipeDown:function(element,fn){
var isTouchMove, startTx, startTy;
element.addEventListener( 'touchstart', function( e ){
var touches = e.touches[0];
startTx = touches.clientX;
startTy = touches.clientY;
isTouchMove = false;
}, false );
element.addEventListener( 'touchmove', function( e ){
isTouchMove = true;
e.preventDefault();
}, false );
element.addEventListener( 'touchend', function( e ){
if( !isTouchMove ){
return;
}
var touches = e.changedTouches[0],
endTx = touches.clientX,
endTy = touches.clientY,
distanceX = startTx - endTx
distanceY = startTy - endTy,
isSwipe = false;
if( Math.abs(distanceX) < Math.abs(distanceY) ){
if( distanceY < -20 ){
fn();
isSwipe = true;
}
}
}, false );
},
/*向左滑动事件*/
swipeLeft:function(element,fn){
var isTouchMove, startTx, startTy;
element.addEventListener( 'touchstart', function( e ){
var touches = e.touches[0];
startTx = touches.clientX;
startTy = touches.clientY;
isTouchMove = false;
}, false );
element.addEventListener( 'touchmove', function( e ){
isTouchMove = true;
e.preventDefault();
}, false );
element.addEventListener( 'touchend', function( e ){
if( !isTouchMove ){
return;
}
var touches = e.changedTouches[0],
endTx = touches.clientX,
endTy = touches.clientY,
distanceX = startTx - endTx
distanceY = startTy - endTy,
isSwipe = false;
if( Math.abs(distanceX) >= Math.abs(distanceY) ){
if( distanceX > 20 ){
fn();
isSwipe = true;
}
}
}, false );
},
/*向右滑动事件*/
swipeRight:function(element,fn){
var isTouchMove, startTx, startTy;
element.addEventListener( 'touchstart', function( e ){
var touches = e.touches[0];
startTx = touches.clientX;
startTy = touches.clientY;
isTouchMove = false;
}, false );
element.addEventListener( 'touchmove', function( e ){
isTouchMove = true;
e.preventDefault();
}, false );
element.addEventListener( 'touchend', function( e ){
if( !isTouchMove ){
return;
}
var touches = e.changedTouches[0],
endTx = touches.clientX,
endTy = touches.clientY,
distanceX = startTx - endTx
distanceY = startTy - endTy,
isSwipe = false;
if( Math.abs(distanceX) >= Math.abs(distanceY) ){
if( distanceX < -20 ){
fn();
isSwipe = true;
}
}
}, false );
}
}
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