angularjs利用directive实现移动端自定义软键盘的示

angular.module('ng-calculator', []).directive('calculator', ['$pile',function($pile) {
  return {
    restrict : 'A',
    replace : true,
    transclude : true,
    template:'<input/>',

    link : function(scope, element, attrs) {
      var keylist=[1,2,3,4,5,6,7,8,9,0,'.'];
      var calculator = '<div class="ngcalculator_area"><div class="bg"></div>'
        +'<div class="calculator">'
        +'<div class="title close">'+attrs.title+'</div><div class="inputarea">'
        +'<input type="text" id="text" ng-tap="getInput()" class="'+attrs.class+'" ng-model="' +attrs.ngModel+'">'
        +'</div><div class="con">'
        +'<div class="left">';
      $.each(keylist,function(k,v){
        calculator += '<div class="keyboard num" value="'+v+'">'+v+'</div>';
      });

      calculator += '</div>'
        +'<div class="right">'
        +'<div class="keyboard blueIcon backstep"></div>'
        +'<div class="keyboard blueIcon cleanup">清空</div>'
        +'<div class="keyboard ensure ensure">确<br>定</div>'
        +'</div>'
        +'</div>'
        +'</div>'
        +'</div>';
      calculator = $pile(calculator)(scope);
      element.bind('focus',function(){
        document.body.appendChild(calculator[0]);
        document.activeElement.blur();
      });

      $(calculator[0]).find("input").focus(function(){
        document.activeElement.blur();
      });
      //关闭模态框
      $(calculator[0]).find(".close").click(function(){
        calculator[0].remove();
        var callback = attrs.callback;
        if(typeof callback!="undefined"){
          scope[callback]();
        }
      });
      $(calculator[0]).find(".bg").click(function(){
        calculator[0].remove();
      });
      //退格
      $(calculator[0]).find(".backstep").click(function(){
        if(typeof $(calculator[0]).find("input").val()=="undefined"){
          $(calculator[0]).find("input").val("");
        }
        $(calculator[0]).find("input").val($(calculator[0]).find("input").val().substring(0,$(calculator[0]).find("input").val().length-1)).trigger('change');
      });
      //清空
      $(calculator[0]).find(".cleanup").click(function(){
        $(calculator[0]).find("input").val("").trigger('change');
      });
      //点击数字
      $(calculator[0]).find(".num").click(function(){
        var val = $(calculator[0]).find("input").val();
        var filter = attrs.filter;
        if(typeof filter!="undefined"){
          val = scope[filter](val,$(this).attr("value"));
        }else{
          val = val+''+$(this).attr("value");
        }
        $(calculator[0]).find("input").val(val).trigger('change');
      });
      //确认
      $(calculator[0]).find(".ensure").click(function(){
        calculator[0].remove();
        var callback = attrs.callback;
        if(typeof callback!="undefined"){
          scope[callback]();
        }
      });
      //点击效果
      $(calculator[0]).find(".keyboard").click(function(){
        $(this).addClass("keydown");
        var that = this;
        setTimeout(function(){
          $(that).removeClass("keydown");
        },100)
      });
      var position = {
        startX:0,
        startY:0
      };
      calculator[0].getElementsByClassName("title")[0].addEventListener('touchstart', function(e) {
        e.preventDefault();
        var transform = $(calculator[0]).find(".calculator").css("transform").match(/translate\((.),(.)\)/);
        if(transform==null){
          position.startX = e.targetTouches[0].clientX;
          position.startY = e.targetTouches[0].clientY;
        }else{
          position.startX = e.targetTouches[0].clientX-parseInt(transform[1]);
          position.startY = e.targetTouches[0].clientY-parseInt(transform[2]);
        }
      }, false);
      calculator[0].getElementsByClassName("title")[0].addEventListener('touchmove', function(e) {
        e.preventDefault();
        var moveX = e.targetTouches[0].clientX-position.startX;
        var moveY = e.targetTouches[0].clientY-position.startY;
        $(calculator[0]).find(".calculator").css("transform","translate("+moveX+"px,"+moveY+"px)");
      }, false);
    }
  };
}]);

<input type="text" placeholder="按价格搜索" ng-model="spaAndHairSeaInPrice" title="按价格搜索" calculator>