js常用共同方法

var uh_rdsp = (function(){
    
    //获取根目录
    var getContextPath = function(){
        var pathName = document.location.pathname;
        var index = pathName.substr(1).indexOf("/");
        var result = pathName.substr(0,index+1);
        return result;
    }
    
    //如果传入的没有参数 则显示迷你指示器 如果第一个参数传入null  并且有第二个参数 
    //则在指定时间之后关闭迷你指示器
    //显示等待框 如果只传入一个参数 则默认为显示内容 
    //如果传入多个参数  第二个参数则是默认显示多长时间
    var showWait = (function(){
        var showModal = function(message){
            $.showPreloader(message);
        }
        var showIndicator = function(){
            $.showIndicator();
        }
        var hideModal = function(){
            $.hidePreloader();
        }
        var hideIndicator = function(){
            $.hideIndicator();
        }
        return function(){
            if(arguments[0] == 'show'){
                if(arguments[1] != null){
                    showModal(arguments[1]);
                }else{
                    showIndicator();
                }
                if(arguments.length > 2){
                    if(arguments[1] != null){
                        setTimeout(function(){
                            hideModal();
                        },arguments[2]);
                    }else{
                        setTimeout(function(){
                            hideIndicator();
                        },arguments[2]);
                    }
                }
            }
            if(arguments[0] == 'hide'){
                if(arguments[1] == 'modal'){
                    hideModal();
                }
                if(arguments[1] == 'indi'){
                    hideIndicator();
                }
            }
        }
    })();
    
    //显示Toast 传入2个参数 第一个参数为显示内容  第二个参数为显示时间 默认2秒
    var showToast = (function(){
        var showToast = function(){
            if(arguments.length == 2){
                $.toast(arguments[0],arguments[1]);
            }else{
                $.toast(arguments[0]);
            }
            
        }
        
        return function(){
            showToast.apply(null,arguments);
        }
    })();
    //显示alert 可传入1个参数 显示内容
    var showAlert = (function(){
        var alertMsg = function(){
            $.alert(arguments[0]);
        }
        return function(){
            alertMsg.apply(null,arguments)
        }
    })();
    
    //显示确认框 传入两个参数 第一个为显示信息  第二个为点击确认后的回调函数
    var showConfirm = (function(){
        var confirmMsg = function(){
            if(arguments.length == 1){
                $.confirm(arguments[0]);    
            }
            if(arguments.length == 2){
                $.confirm(arguments[0],arguments[1]);
            }
        }
        return function(){
            confirmMsg.apply(null,arguments);
        }
    })();
    
    //显示操作表 传入两个参数 第一个参数为数组 表示显示内容 第二个参数为回调方法 
    var showActions = (function(){
        var cache = {};
        var actions = function(){
            var buttons1 = [];
            for (var i = 0,l=arguments[0].length;i < l;i++) {
                buttons1.push({text:arguments[0][i].text,onClick:arguments[0][i].onclick});
            }
            var buttons2 = [{text:'取消'}];
            var groups = [buttons1, buttons2];
            $.actions(groups);
        }
        return function(){
            actions.apply(null,arguments);
        }
    })();
    //显示日期选择控件
    var showDatePicker = (function(){
        var cache = {};
        var showDateFun = function(){
            var id = arguments[0];
            var showdate = arguments[1];
            id.calendar({value:[showdate],minDate:showdate});
        }
        return function(){
            if(arguments[0].id in cache){
                return ;
            }
            cache[arguments[0].id] = arguments[0];
            showDateFun.apply(null,arguments);
        }
    })();
    
    //parse
    var parseTemplate = function(dta,tmpl){
        var format = {
            name : function(x) {
                if(x == null || x == "null"){
                    return "";
                }
                return x;
            }
        };
        return tmpl.replace(/{(\w+)}/g, function(m1, m2) {
            if (!m2 && m2!= "null")
                return "";
            return (format && format[m2]) ? format[m2](dta[m2]) : dta[m2];
        });
    };
    //ajax 请求前置方法
    $(document).on('ajaxBeforeSend', function(e, xhr, options){
      xhr.setRequestHeader('Authorization',"UH_RDSP_tok"+$('#token').val());
    });
    //发送ajax请求 传入3个参数 url：请求地址 params：请求参数 callback：回调方法
    var ajaxUrl = (function(){
        var count   = 1;
        var timer ;
        var isFirst = true;
        var ajaxfun = function(){
            var url = arguments[0];
            var params = arguments[1];
            var str = JSON.stringify(params);  
            var callback = arguments[2];
            $.ajax({
                  type: 'POST',
                  url: getContextPath()+url,
                  data: params,
                  dataType: 'json',
                  context: $('body'),
                  success: function(data){
                      callback(data);
                      count++;
                  },
                  error: function(xhr, type){
                    showAlert('请求异常');
                  }
            })
        }
        return function(){
            var args = arguments;
//            if(isFirst){
//                
//                return isFirst = false;
//            }
            ajaxfun.apply(null,arguments);
//            if(timer){
//                showToast('操作过于频繁，请稍后',1000);
//                return false;
//            }
//            timer = setTimeout(function(){
//                clearTimeout(timer);
//                timer = null;
//                ajaxfun.apply(null,args);
//            },2000);
        }
    })();
    //发送post请求 传入2个参数 url：请求地址 params：请求参数 
    var postUrl = (function(){
        var timer;
        var isFirst = true;
        var postFun = function(){
            var url = arguments[0];
            var params = arguments[1];
            var temp = document.createElement("form");        
            temp.action = url;        
            temp.method = "post";        
            temp.style.display = "none";        
            for (var x in params) {        
                var opt = document.createElement("textarea");        
                opt.name = x;        
                opt.value = params[x];        
                // alert(opt.name)        
                temp.appendChild(opt);        
            }
            var opt = document.createElement("textarea");
            opt.name = 'token';
            opt.value = "UH_RDSP_tok"+$('#token').val();
            temp.appendChild(opt);   
            document.body.appendChild(temp);        
            temp.submit();  
        }
        return function(){
            var args = arguments;
            if(isFirst){
                postFun.apply(null,arguments);
                return isFirst = false;
            }
            if(timer){
                showToast('操作过于频繁，请稍后',1000);
                return false;
            }
            timer = setTimeout(function(){
                clearTimeout(timer);
                timer = null;
                postFun.apply(null,args);
            },2000);
        }
              
    })();
    //函数截流 传入调用方法 以及延迟时间 在调用方法之后 延迟时间之后才会继续调用方法
    var throttle = function(fn,interval){
        var _self = fn,
        timer,
        firstTime = true;
        return function(){
            var args = arguments,
            _me = this;
            if(firstTime){
                _self.apply(_me,args);
                return firstTime = false;
            }
            if(timer){
                showToast('操作过于频繁，请稍后',1000);
                return false;
            }
            timer = setTimeout(function(){
                clearTimeout(timer);
                timer = null;
                _self.apply(_me,args);
            },interval||2000);
        }
    };
    //每隔200毫秒执行一次方法 每次执行count个
    var timeChunk = function(ary,fn,count){
        var obj,t;
        var len = ary.length;
        var start = function(){
            for (var i = 0; i < Math.min(count||1,ary.length); i++) {
                var obj = ary.shift();
                fn(obj);
            }
        }
        return function(){
            t = setInterval(function(){
                if(ary.length === 0){
                    return clearInterval(t);
                }
                start();
            },200);
        }
    }
    
    var sendparams = {};
    var loading = false;
    // 最多可加载的条目
    var maxItems = 200;
    // 每次加载添加多少条目
    var itemsPerLoad = 10;
    // 上次加载的序号
    var lastIndex = 0;
    var count = 1;
    var pullDownRefresh = function(url,params,callback){
        sendparams = params;
        $(document).on('refresh', '.pull-to-refresh-content',function(e) {
            callback(url,sendparams,1);
            count = 1;
        });
    }
    var pullUpRefresh = function(url,params,callback){
        lastIndex = 0;
        count = 1;
             $(document).on('infinite', '.infinite-scroll-bottom',function() {
              // 如果正在加载，则退出
              if (loading) return;
              // 设置flag
              loading = true;
              var url = arguments[0];
              sendparams = arguments[1];
              var callback = arguments[2];
             
              if (lastIndex >= maxItems) {
                  // 加载完毕，则注销无限加载事件，以防不必要的加载
                  $.detachInfiniteScroll($('.infinite-scroll'));
                  // 删除加载提示符
                  $('.infinite-scroll-preloader').remove();
                  return;
              }
              var total = callback(url,sendparams,count);
              count++;
              maxItems = total;
              // 更新最后加载的序号
              lastIndex = $('.list-container').children().length;
              //容器发生改变,如果是js滚动，需要刷新滚动
              $.refreshScroller();
               // 重置加载flag
              loading = false;
              
          });
    }
    
    //获取明天日期 并以YYYY-MM-DD格式化
    var getNowDate = function(){
        var date = new Date();
        date = new Date((date/1000+86400)*1000);
        var seperator1 = "-";
        var seperator2 = ":";
        var year = date.getFullYear();
        var month = date.getMonth() + 1;
        var strDate = date.getDate();
        if (month >= 1 && month <= 9) {
            month = "0" + month;
        }
        if (strDate >= 0 && strDate <= 9) {
            strDate = "0" + strDate;
        }
//        var currentdate = year + seperator1 + month + seperator1 + strDate
//                + " " + date.getHours() + seperator2 + date.getMinutes()
//                + seperator2 + date.getSeconds();
        var currentdate = year + seperator1 + month + seperator1 + strDate;
                
        return currentdate;
    }
    
    function hasClass(obj, cls) {
        return obj.className.match(new RegExp('(\\s|^)' + cls + '(\\s|$)'));
    }
    
    function removeClass(obj, cls) {
        if (hasClass(obj, cls)) {
            var reg = new RegExp('(\\s|^)' + cls + '(\\s|$)');
            obj.className = obj.className.replace(reg, ' ');
        }
    }
    function addClass(obj, cls) {
        if (!hasClass(obj, cls)) {
            obj.className += " " + cls;
        }
    }
    //传入两个参数  1.show或者hide  2.callback 城市点击回调方法
    var showCitys = (function(){
        var isFirst = true;
        var showCity = function(){
            document.getElementById("bg").style.display ="block";
            document.getElementById("show").style.display ="block";
        }
        var hideCity = function(){
            document.getElementById("bg").style.display ='none';
            document.getElementById("show").style.display ='none';
        };
        
        var createCity = function(){
            var cityshtml = '<div id="bg"></div><div id="show"><div><!--当前城市--><div class="citys_top uh_rdsp_white_background">当前城市：<img id="citysclose"src="../images/Item_Clost.png"class="pull-right"style="width: 20px;margin-right: 20px;"/></div><!--城市列表--><div class="uh_rdsp_white_background"><div class="row city_button_parentdiv"><hr class="text_titleshow_hrs"><div class="col-33 city_button_div"><input type="button"class="city_button_selected city_button_content"value="全省"/></div><div class="col-33 city_button_div"><input type="button"class="city_button city_button_content"value="太原市"/></div><div class="col-33 city_button_div"><input type="button"class="city_button city_button_content"value="大同市"/></div></div><div class="row city_button_parentdiv"><div class="col-33 city_button_div"><input type="button"class="city_button city_button_content"value="阳泉市"/></div><div class="col-33 city_button_div"><input type="button"class="city_button city_button_content"value="长治市"/></div><div class="col-33 city_button_div"><input type="button"class="city_button city_button_content"value="晋城市"/></div></div><div class="row city_button_parentdiv"><div class="col-33 city_button_div"><input type="button"class="city_button city_button_content"value="朔州市"/></div><div class="col-33 city_button_div"><input type="button"class="city_button city_button_content"value="忻州市"/></div><div class="col-33 city_button_div"><input type="button"class="city_button city_button_content"value="晋中市"/></div></div><div class="row city_button_parentdiv"><div class="col-33 city_button_div"><input type="button"class="city_button city_button_content"value="临汾市"/></div><div class="col-33 city_button_div"><input type="button"class="city_button city_button_content"value="吕梁市"/></div><div class="col-33 city_button_div"><input type="button"class="city_button city_button_content"value="运城市"/></div></div><div class="uh_rdsp_white_background city_bottom"id="citys_bottom">确&nbsp;&nbsp;&nbsp;&nbsp;定</div></div><!--作者：123366176@qq.com时间：2016-08-02描述：确定按钮--></div></div>';
            $('#htmlbody').append(cityshtml);
            var citys = document.getElementsByClassName('city_button_content');
            var callback = arguments[1];
            var selectedcityname = '全省';
            var selectedcityid   = '';
            document.getElementById("bg").style.display ="block";
            document.getElementById("show").style.display ="block";
            document.getElementById('citysclose').onclick = hideCity;
            document.getElementById('citys_bottom').onclick = function(){
                    callback(selectedcityname,selectedcityid);
                    hideCity();
            };
            
            var cleanAll = function(){
                    for(var i = 0;i < citys.length;i++){
                        removeClass(citys[i],'city_button_selected');
                        addClass(citys[i],'city_button')
                    }
            }
            for(var i = 0;i < citys.length;i++){
                   (function(i){
                       citys[i].onclick = function(){
                           cleanAll.call();
                           if(citys[i].value == '全省'){
                               selectedcityname = '全省';
                               selectedcityid = '';
                               removeClass(citys[i],'city_button');
                               addClass(citys[i],'city_button_selected');    
                           }else if(citys[i].value == '太原市'){
                               selectedcityname = '太原市';
                               selectedcityid = '1401';
                               removeClass(citys[i],'city_button');
                               addClass(citys[i],'city_button_selected');        
                               //callback.call(null,citys[i].value,1401);
                           }else if(citys[i].value == '大同市'){
                               selectedcityname = '大同市';
                               selectedcityid = '1402';
                               removeClass(citys[i],'city_button');
                               addClass(citys[i],'city_button_selected');    
                               //callback.call(null,citys[i].value,1402);
                           }else if(citys[i].value == '阳泉市'){
                               selectedcityname = '阳泉市';
                               selectedcityid = '1403';
                               removeClass(citys[i],'city_button');
                               addClass(citys[i],'city_button_selected');    
                               //callback.call(null,citys[i].value,1403);
                           }else if(citys[i].value == '长治市'){
                               selectedcityname = '长治市';
                               selectedcityid = '1404';
                               removeClass(citys[i],'city_button');
                               addClass(citys[i],'city_button_selected');    
                               //callback.call(null,citys[i].value,1404);
                           }else if(citys[i].value == '晋城市'){
                               selectedcityname = '晋城市';
                               selectedcityid = '1405';
                               removeClass(citys[i],'city_button');
                               addClass(citys[i],'city_button_selected');    
                               //callback.call(null,citys[i].value,1405);
                           }else if(citys[i].value == '朔州市'){
                               selectedcityname = '朔州市';
                               selectedcityid = '1406';
                               removeClass(citys[i],'city_button');
                               addClass(citys[i],'city_button_selected');    
                               //callback.call(null,citys[i].value,1406);
                           }else if(citys[i].value == '忻州市'){
                               selectedcityname = '忻州市';
                               selectedcityid = '1407';
                               removeClass(citys[i],'city_button');
                               addClass(citys[i],'city_button_selected');    
                               //callback.call(null,citys[i].value,1407);
                           }else if(citys[i].value == '晋中市'){
                               selectedcityname = '晋中市';
                               selectedcityid = '1408';
                               removeClass(citys[i],'city_button');
                               addClass(citys[i],'city_button_selected');    
                               //callback.call(null,citys[i].value,1408);
                           }else if(citys[i].value == '临汾市'){
                               selectedcityname = '临汾市';
                               selectedcityid = '1409';
                               removeClass(citys[i],'city_button');
                               addClass(citys[i],'city_button_selected');    
                               //callback.call(null,citys[i].value,1409);
                           }else if(citys[i].value == '吕梁市'){
                               selectedcityname = '吕梁市';
                               selectedcityid = '1410';
                               removeClass(citys[i],'city_button');
                               addClass(citys[i],'city_button_selected');    
                               //callback.call(null,citys[i].value,1410);
                           }else if(citys[i].value == '运城市'){
                               selectedcityname = '运城市';
                               selectedcityid = '1411';
                               removeClass(citys[i],'city_button');
                               addClass(citys[i],'city_button_selected');    
                               //callback.call(null,citys[i].value,1411);
                           }
                           
                       }
                   })(i,callback,cleanAll,selectedcityname,selectedcityid)
               
               }
        };
        return function(){
            if(arguments.length == 0){
                return ;
            }
            if(isFirst == true && arguments[0] == 'show'){
                createCity.apply(null,arguments);
                isFirst = false;
                return ;
            }
            if(arguments[0] == 'hide'){
                hideCity.apply(null,arguments);
                return ;
            }
            if(arguments[0] == 'show'){
                showCity.apply(null,arguments);
                return ;
            }
        }
        
        
    })();
    
    var ajaxUrlPath = (function(){
        var count   = 1;
        var timer ;
        var isFirst = true;
        var ajaxfun = function(){
            var url = arguments[0];
            var params = arguments[1];
            var str = JSON.stringify(params);  
            var callback = arguments[2];
            $.ajax({
                  type: 'POST',
                  url: $('#contextPath').val()+url,
                  data: params,
                  dataType: 'json',
                  context: $('body'),
                  success: function(data){
                      callback(data);
                      count++;
                  },
                  error: function(xhr, type){
                    showAlert('请求异常');
                  }
            })
        }
        return function(){
            var args = arguments;
            if(isFirst){
                ajaxfun.apply(null,arguments);
                return isFirst = false;
            }
            if(timer){
                showToast('操作过于频繁，请稍后',1000);
                return false;
            }
            timer = setTimeout(function(){
                clearTimeout(timer);
                timer = null;
                ajaxfun.apply(null,args);
            },2000);
        }
    })();
    
    return {
        getContextPath : getContextPath,
        showWait: showWait,
        showToast:showToast,
        showAlert:showAlert,
        showConfirm:showConfirm,
        showActions:showActions,
        showDatePicker:showDatePicker,
        postUrl:postUrl,
        ajaxUrl:ajaxUrl,
        throttle:throttle,
        getNowDate:getNowDate,
        showCitys:showCitys,
        removeClass:removeClass,
        addClass:addClass,
        pullUpRefresh:pullUpRefresh,
        pullDownRefresh:pullDownRefresh,
        parseTemplate:parseTemplate,
        ajaxUrlPath:ajaxUrlPath
    };
})();