H5+百度地图自定义定位控件、调用H5+定位接口

/**
* Author 岳晓
*
* 自定义定位控件,调用H5+内置定位API
*/

(function(BMap){

var control = BMap.Map.XGeolocationControl = function(){
this.defaultAnchor = BMAP_ANCHOR_BOTTOM_LEFT;
this.defaultOffset = new BMap.Size(10, 50);
}

control.prototype = new BMap.Control();

control.prototype.locate=function(cb){
_locate(this.map,this.controlPane.querySelector(".BMap_geolocationContainer"),cb);

};
control.prototype.getMap=function(){
return this.map;
};
control.prototype.setOnLocateComplete=function(fn){
if(typeof(fn)=="function"){
this.locateComplete = fn;
}
};
control.prototype.initialize = function(map){
this.map = map;
var div = document.createElement("div");

div.innerHTML=
'<div class="BMap_geolocationIconBackground" style="height: 32px; background-image: url(http://api0.map.bdimg.com/images/geolocation-control/mobile/gradient-bg-1x64.png); background-size: 1px 32px; background-repeat: repeat-x;">'+
'<div class="BMap_geolocationIcon" style="width: 32px; height: 32px; cursor: pointer; background-image: url(http://api0.map.bdimg.com/images/geolocation-control/mobile/fail-40x40.png); background-size: 20px 20px; background-position: 50% 50%; background-repeat: no-repeat;"></div>'+
'</div>'+
'<div class="BMap_geolocationAddress" style="padding:0 10px 0 10px;background:#FFF;display:-webkit-box;-webkit-box-align:center; box-sizing:border-box;border-left-width: 1px; border-left-style: solid; border-left-color: rgb(217, 215, 213); background-image: url(http://api0.map.bdimg.com/images/geolocation-control/mobile/gradient-bg-1x64.png); background-size: 1px 32px; background-repeat: repeat-x;">'+
'	<div class="BMap_geolocationAddressText" style="text-align:center;font-size: 12px; color: #666666; text-overflow: ellipsis; white-space: nowrap; overflow: hidden; display: block; min-width: 50px; max-width: 400px;"></div>'+
'</div>';
div.className = "BMap_geolocationContainer";
div.setAttribute("style",'-webkit-transition:width 0.2s ease-in;height: 32px;;width:34px;display: -webkit-box; margin: 0px; box-sizing: border-box; border: 1px solid #d9d7d5; border-radius: 3px; -webkit-box-shadow: 1px 1px 1px rgba(0,0,0,.2); overflow: hidden;')
var geolocation = div.querySelector(".BMap_geolocationIcon");
var address = div.querySelector(".BMap_geolocationAddress");
var text = div.querySelector(".BMap_geolocationAddressText");
map.getContainer().appendChild(div);
var $this = this;
geolocation.addEventListener("click", function(e){
_locate(map,div,$this.locateComplete);
});
this.controlPane = div.parentElement;
return div;
};

var mk = null;
function _locate(map,div,cb){

if(mk){
map.removeOverlay(mk);
mk.disableMassClear();
}

var geolocation = div.querySelector(".BMap_geolocationIcon");
var address = div.querySelector(".BMap_geolocationAddress");
var text = div.querySelector(".BMap_geolocationAddressText");

div.style.width= "34px";
text.innerText="";
geolocation.style.backgroundImage = "url(http://api0.map.bdimg.com/images/geolocation-control/mobile/loading-40x40.gif)";

Towery.locate({
success:function(position){
if(cb) cb({
status:0,
result:position
});
geolocation.style.backgroundImage = "url(http://api0.map.bdimg.com/images/geolocation-control/mobile/success-40x40.png)";

var coords = position.coords;
var lon = coords.longitude;
var lat = coords.latitude;
var point = new BMap.Point(lon,lat);

var myIcon = new BMap.Icon(Towery.getFullPath("MobileCRMDistrict/images/location-ico.svg"),new BMap.Size(16, 16));

mk = new BMap.Marker(point,{icon:myIcon});
var label = new BMap.Label("我在这里",{
offset:new BMap.Size(-18,-20)
});

label.setStyle({
padding:"0px",
border:"solid 1px orangered",
background:"rgba(255,255,255,0.5)"
});
mk.setTop(true);
mk.setLabel(label);
map.addOverlay(mk);
map.panTo(point);

if(position.addresses){
text.innerText=position.addresses;
var w = text.offsetWidth;
div.style.width=34 +(w +20)+"px" ;
}
},
error:function(e){
if(cb) cb({
status:-1,
result:e
});
plus.nativeUI.toast("无法获取您的位置,请打开GPS并授予此应用权限,必要时移至室外或移动、WIFI信号好的位置!",{duration:"long"});
geolocation.style.backgroundImage = "url(http://api0.map.bdimg.com/images/geolocation-control/mobile/fail-40x40.png)";
console.log(Towery.pretty(e))
}
},{
provider: "baidu",
coordsType:"bd09ll"
});
}

})(BMap);