一个mui扩展插件mui.showLoading加载框【转】

mui.showLoading("正在加载..","div"); //加载文字和类型，plus环境中类型为div时强制以div方式显示  

mui.hideLoading(callback);//隐藏后的回调函数 

mui.showLoading("正在加载..","div"); //加载文字和类型，plus环境中类型为div时强制以div方式显示  

//扩展mui.showLoading  
(function($, window) {  
    //显示加载框  
    $.showLoading = function(message,type) {  
        if ($.os.plus && type !== ‘div‘) {  
            $.plusReady(function() {  
                plus.nativeUI.showWaiting(message);  
            });  
        } else {  
            var html = ‘‘;  
            html += ‘<i class="mui-spinner mui-spinner-white"></i>‘;  
            html += ‘<p class="text">‘ + (message || "数据加载中") + ‘</p>‘;  

            //遮罩层  
            var mask=document.getElementsByClassName("mui-show-loading-mask");  
            if(mask.length==0){  
                mask = document.createElement(‘div‘);  
                mask.classList.add("mui-show-loading-mask");  
                document.body.appendChild(mask);  
                mask.addEventListener("touchmove", function(e){e.stopPropagation();e.preventDefault();});  
            }else{  
                mask[0].classList.remove("mui-show-loading-mask-hidden");  
            }  
            //加载框  
            var toast=document.getElementsByClassName("mui-show-loading");  
            if(toast.length==0){  
                toast = document.createElement(‘div‘);  
                toast.classList.add("mui-show-loading");  
                toast.classList.add(‘loading-visible‘);  
                document.body.appendChild(toast);  
                toast.innerHTML = html;  
                toast.addEventListener("touchmove", function(e){e.stopPropagation();e.preventDefault();});  
            }else{  
                toast[0].innerHTML = html;  
                toast[0].classList.add("loading-visible");  
            }  
        }     
    };  

    //隐藏加载框  
      $.hideLoading = function(callback) {  
        if ($.os.plus) {  
            $.plusReady(function() {  
                plus.nativeUI.closeWaiting();  
            });  
        }   
        var mask=document.getElementsByClassName("mui-show-loading-mask");  
        var toast=document.getElementsByClassName("mui-show-loading");  
        if(mask.length>0){  
            mask[0].classList.add("mui-show-loading-mask-hidden");  
        }  
        if(toast.length>0){  
            toast[0].classList.remove("loading-visible");  
            callback && callback();  
        }  
      }  
})(mui, window);  

/*----------------mui.showLoading---------------*/  
.mui-show-loading {  
    position: fixed;  
    padding: 5px;  
    width: 120px;  
    min-height: 120px;  
    top: 45%;  
    left: 50%;  
    margin-left: -60px;  
    background: rgba(0, 0, 0, 0.6);  
    text-align: center;  
    border-radius: 5px;  
    color: #FFFFFF;  
    visibility: hidden;  
    margin: 0;  
    z-index: 2000;  

    -webkit-transition-duration: .2s;  
    transition-duration: .2s;  
    opacity: 0;  
    -webkit-transform: scale(0.9) translate(-50%, -50%);  
    transform: scale(0.9) translate(-50%, -50%);  
    -webkit-transform-origin: 0 0;  
    transform-origin: 0 0;  
}  
.mui-show-loading.loading-visible {  
    opacity: 1;  
    visibility: visible;  
    -webkit-transform: scale(1) translate(-50%, -50%);  
    transform: scale(1) translate(-50%, -50%);  
}  
.mui-show-loading .mui-spinner{  
    margin-top: 24px;  
    width: 36px;  
    height: 36px;  
}  
.mui-show-loading .text {  
    line-height: 1.6;  
    font-family: -apple-system-font,"Helvetica Neue",sans-serif;  
    font-size: 14px;  
    margin: 10px 0 0;  
    color: #fff;  
}  

.mui-show-loading-mask {  
  position: fixed;  
  z-index: 1000;  
  top: 0;  
  right: 0;  
  left: 0;  
  bottom: 0;  
}  
.mui-show-loading-mask-hidden{  
    display: none !important;  
}