/** * Author 岳晓 *  * 对百度地图的事件扩展，目前扩展了fastclick和longclick, * 解决某些设备click不执行的问题 * 解决长按事件在拖动、多触点依然执行的bug * v1.0.0 */  (function(){  BMap.Map.prototype.on=function(evt,fn,option){  var _option = {  canBubble:true  }  extend(_option,option)  if(!evt || !fn) return;  var $this = this;  var evtList = ["longtouch","onetouch"];  if(inArray(evt,evtList)){  MesureEvents[evt]($this,evt,fn,option);  $this.getContainer().querySelector("div.BMap_mask").addEventListener(evt,fn);  }  else{  $this.addEventListener(evt,fn);  /*function(e){ if(option.canBubble){ e.domEvent.stopPropagation(); } fn.call(this,e); });*/  }  };  var centerAndZoom = BMap.Map.prototype.centerAndZoom;  BMap.Map.prototype.centerAndZoom  = function(){  var $this = this;  centerAndZoom.apply(this,arguments);  if(!$this.hasRegistMyTouch){  $this.on("onetouch",function(e){  //console.log(e);  var event = document.createEvent("MouseEvent");  event.initEvent("fastclick",true,true);  event.clientX = e.clientX;  event.clientY = e.clientY;  event.point = e.point;  $this.dispatchEvent(event);  var event = document.createEvent("MouseEvent");  event.initEvent("click",true,true);  event.clientX = e.clientX;  event.clientY = e.clientY;  $this.dispatchEvent(event);  });  $this.on("longtouch",function(e){  //console.log(e);  var event = document.createEvent("TouchEvent");  event.initEvent("longclick",true,true);  event.clientX = e.clientX;  event.clientY = e.clientY;  event.point = e.point;  $this.dispatchEvent(event);  });  $this.hasRegistMyTouch = true;  }  }  var MesureEvents = {  onetouch:function($this,evt,fn,data,option){  var ismoved;  var time = null;  var touchLocation = null;  var maxTouchesCount = 0;  var container = $this.getContainer();  var mask = container.querySelector("div.BMap_mask");  var panes = $this.getPanes();  $this.addEventListener("touchstart",function(e){  var temp = Math.max(maxTouchesCount,e.touches.length);  if(temp==1) {  var touch = e.changedTouches[0];  if(isAncestors(touch.target,[panes.floatPane,panes.markerMouseTarget,panes.markerPane],container)) return;  maxTouchesCount = temp;  touchLocation = {  x:touch.clientX,  y:touch.clientY  };  time = new Date().getTime();  }  });  $this.addEventListener("touchmove",function(e){  maxTouchesCount = Math.max(maxTouchesCount,e.touches.length);  if(maxTouchesCount==1) {  var touch = e.changedTouches[0];  if(isAncestors(touch.target,[panes.floatPane,panes.markerMouseTarget,panes.markerPane],container)) return;  if(Math.abs(touchLocation.x-touch.clientX)>0 && Math.abs(touchLocation.y-touch.clientY)>0){//解决部分手机对touchmove过分“敏感”的问题  ismoved = true;  //console.log("touchmove---");
                    }  else{  ismoved = false;  }  }  });  $this.addEventListener("touchend",function(e){  var touches =e.touches.length;  if(touches==0){  var touch = e.changedTouches[0];  if(isAncestors(touch.target,[panes.floatPane,panes.markerMouseTarget,panes.markerPane],container)) return;  var temp = maxTouchesCount;  var tempM = ismoved;  ismoved= false;  maxTouchesCount = 0;  if(temp==1 && !tempM /*&& /BMap_mask/.test(e.srcElement.className)*/ && new Date().getTime()-time<500){  var event = document.createEvent("Event");  event.initEvent("onetouch",true,true);  var touch = e.changedTouches[0];  event.clientX = touch.clientX;  event.clientY = touch.clientY;  event.point =calLngLat($this,event.clientX,event.clientY);  mask.dispatchEvent(event,fn);  }     }  });  },  longtouch:function($this,evt,fn,data,option){  var ismoved;  var time = null;  var timeout;  var maxTouchesCount = 0;  var touchLocation = null;  var container = $this.getContainer();  var mask = container.querySelector("div.BMap_mask");  var panes = $this.getPanes();  $this.addEventListener("touchstart",function(e){  var temp = Math.max(maxTouchesCount,e.touches.length);  if(temp==1) {  var touch = e.changedTouches[0];  if(isAncestors(touch.target,[panes.floatPane,panes.markerMouseTarget,panes.markerPane],container)) return;  maxTouchesCount = temp;  touchLocation = {  x:touch.clientX,  y:touch.clientY  };  time = new Date().getTime();  timeout = setTimeout(function(){  clearTimeout(timeout);  timeout = null;  longtouch(e);  },750);  }  });  $this.addEventListener("touchmove",function(e){  maxTouchesCount = Math.max(maxTouchesCount,e.touches.length);  if(maxTouchesCount==1) {  var touch = e.changedTouches[0];  if(isAncestors(touch.target,[panes.floatPane,panes.markerMouseTarget,panes.markerPane],container)) return;  //console.log("move:" +touch.clientX +"," + touch.clientY);  if(Math.abs(touchLocation.x-touch.clientX)>=2 && Math.abs(touchLocation.y-touch.clientY)>2){//解决部分手机对touchmove过分“敏感”的问题  ismoved = true;  //console.log("touchmove---");  if(timeout){  clearTimeout(timeout);  timeout = null;  }  }  else{  ismoved = false;  }  }  else{  if(timeout){  clearTimeout(timeout);  timeout = null;  }  }  });  function longtouch(e){  var temp = maxTouchesCount;  var tempM = ismoved;  ismoved= false;  maxTouchesCount = 0;  if(temp==1 && !tempM){  var event = document.createEvent("Event");  event.initEvent("longtouch",true,true);  var touch = e.changedTouches[0];  event.clientX = touch.clientX;  event.clientY = touch.clientY;  event.point =calLngLat($this,event.clientX,event.clientY);  $this.getContainer().querySelector("div.BMap_mask").dispatchEvent(event);  }     }  $this.addEventListener("touchend",function(e){  var touches =e.touches.length;  if(touches==0){  var touch = e.changedTouches[0];  if(isAncestors(touch.target,[panes.floatPane,panes.markerMouseTarget,panes.markerPane],container)) return;  maxTouchesCount = 0;  ismoved= false;  }  if(new Date().getTime()-time<1000){  if(timeout){  clearTimeout(timeout);  timeout = null;  }  }  });  }  }  function calLngLat($this,x,y){  var container = $this.getContainer();  var rect = container.getBoundingClientRect();  var y = y - rect.top;  var x = x - rect.left;  var bounds = $this.getBounds();  var lefTop = new BMap.Point(bounds.getSouthWest().lng,bounds.getNorthEast().lat);  var lefTopPix = $this.pointToPixel(lefTop);  var pix = new BMap.Pixel(lefTopPix.x + x,lefTopPix.y+y);  var point = $this.pixelToPoint(pix);  return point;  }  function inArray(obj,array){  for(x in array){  if(obj==array[x]) return true;  }  return false;  }  function extend(o1,o2){  if(o1 && o2){  for(x in o2){  if(o2.hasOwnProperty(x) && o2[x]!=undefined){  o1[x] = o2[x];  }  }  }  }  function isAncestors(element,nodes,root){  var p = element;  while(p && p!=root){  if(inArray(p,nodes)){  return true;  }  p = p.parentElement;  }  return false;  }  })(BMap);