Arcgis API for js 自定义 infoWindow

转自： 牛老师~https://blog.youkuaiyun.com/gisshixisheng/article/details/27328731?utm_source=tuicool

一、前言

        地图开发中弹出气泡框，使用esri原生的简直是┭┮﹏┭┮，所以还是自已写一个吧。

    主要是继承InfoWindowBase模块。现定义一个模块InfoWindow(抄袭人家的名字，哈哈~~)

二、整个文件 InfoWindow.js如下：

define([
    "dojo/Evented",
    "dojo/parser",
    "dojo/on",
    "dojo/_base/declare",
    "dojo/dom-construct",
    "dojo/_base/array",
    "dojo/dom-style",
    "dojo/_base/lang",
    "dojo/dom-class",
    "dojo/fx",
    "dojo/Deferred",
    "esri/domUtils",
    "esri/InfoWindowBase"
],
function(
    Evented,
    parser,
    on,
    declare,  
    domConstruct,
    array,
    domStyle,
    lang,
    domClass,
    coreFx,
    Deferred,
    domUtils,
    InfoWindowBase
) 
{
  var infoWidth =300,infoHeight =200;
  var initMapCenter,initScreenCenter;
  var showMapPoint =null,showScreenPoint=null;
  
  return declare([InfoWindowBase, Evented], 
  {
  constructor: function(parameters) 
    {
      lang.mixin(this, parameters);
      domClass.add(this.domNode, "myInfoWindow");
      this._closeButton = domConstruct.create("div",{"class": "info-close", "title": "关闭"}, this.domNode);
      this._title = domConstruct.create("div",{"class": "info-title"}, this.domNode);
      this._content = domConstruct.create("div",{"class": "info-content"}, this.domNode);
      this._arrow = domConstruct.create("div",{"class": "info-arrow"}, this.domNode);
      on(this._closeButton, "click", lang.hitch(this, function(){        
        this.hide(); 
      }));      
      domUtils.hide(this.domNode);
      this.isShowing = false;
  },
  setMap: function(map)
    {
      this.inherited(arguments);
      map.on("pan", lang.hitch(this, function(pan){
        var movePoint=pan.delta;
        if(this.isShowing)
        {
          if(showScreenPoint!=null)
          {
            this._showInfoWindow(showScreenPoint.x+movePoint.x,showScreenPoint.y+movePoint.y);
          }	
        }				
      }));
      map.on("pan-end", lang.hitch(this, function(panend){
        var movedelta=panend.delta;
        if(this.isShowing){
          showScreenPoint.x=showScreenPoint.x+movedelta.x;
          showScreenPoint.y=showScreenPoint.y+movedelta.y;
        }
      }));
      map.on("zoom-start", lang.hitch(this, function(){
        domUtils.hide(this.domNode);
        this.onHide();				
      }));
      map.on("zoom-end", lang.hitch(this, function(){
        if(this.isShowing){
          showScreenPoint=this.map.toScreen(showMapPoint);
          this._showInfoWindow(showScreenPoint.x,showScreenPoint.y);
        }				
      }));
  },
  setTitle: function(title){
      this.place(title, this._title);
  },
  setContent: function(content){
      this.place(content, this._content);
  },
    _showInfoWindow:function(x,y)
    {     
      domStyle.set(this.domNode,{
        "left": x - infoWidth/2 +this.offset.x + "px",
        "top": y - infoHeight-20 -this.offset.y + "px"
      });     
      domUtils.show(this.domNode); 
    },
  show: function(location,offset){ 
	  this.offset = dojo.mixin({x:0,y:0},offset);
      showMapPoint=location;      
      initMapCenter=this.map.extent.getCenter();
      initScreenCenter=this.map.toScreen(initMapCenter);      
      infoHeight= $(".myInfoWindow").height();
      infoWidth= $(".myInfoWindow").width(); 
      if(infoWidth<20||infoHeight<20){
    	 this.resize(300,200); 
      }
      if(location.spatialReference){
        location = this.map.toScreen(location);
      }      
      var left=location.x-infoWidth/2;
      var top=location.y-infoHeight-75;
      showScreenPoint=location;      
      if(top<5){
        initScreenCenter.y=initScreenCenter.y+top-5;
      }
      if(left<5){
        initScreenCenter.x=initScreenCenter.x+left-5;
      }
      this._showInfoWindow(showScreenPoint.x,showScreenPoint.y);
      /*initMapCenter=this.map.toMap(initScreenCenter);
      this.map.centerAt(initMapCenter);*/
      this.isShowing = true;
      this.onShow();
  },
  hide: function(){
      domUtils.hide(this.domNode);
      this.isShowing = false;
      this.onHide();
  },
  resize: function(width, height){
      domStyle.set(this._content,{
        "width": width + "px",
        "height": (height-60) + "px"
      });
      domStyle.set(this._title,{
        "width": width + "px"
      });
  },
  destroy: function(){
      domConstruct.destroy(this.domNode);
      this._closeButton = this._title = this._content = null;
  }
  });
  return InfoWindow;
});

说人家的东西丑，你拿个好看的来啊（勉强看一下，请大神们轻喷~），infoWindow.css掏出来：

.myInfoWindow {
  position: absolute;
  z-index: 100;
  font-family: sans-serif;
  font-size: 12px;
  background-color:#ffffff;
  border-radius:10px;
}
.info-content {
  border-radius:10px;
  position: relative;
  background-color:#ffffff;
  color:#353535;
  overflow: auto;
}
.info-close {
  position: absolute; top: 5px; right: 5px;
  cursor: pointer;
  background: url(../images/infowindow_close.png) no-repeat scroll 0 0 transparent;
  width: 12px; 
  height: 12px;
}
.info-close:hover  {
  background-color: red;
}
.info-title {
  border-radius:10px;
  font-weight: bold;
  background-color:#4774d9;
  color:#ffffff;
  height:20px;
}
.info-arrow {
    width: 0;
    height: 0;
    position: absolute;
    bottom: -15px;
    border-left: 15px solid transparent;
    border-right: 15px solid transparent;
    border-top: 15px solid #ffffff;
    margin-left: calc(50% - 15px);
}

调用示意：

用它就把它引入到你要调用的模块中，

    然后创建一个对象

var infoWindow = new  InfoWindow({domNode: domConstruct.create("div", null, dom.byId("mapdiv"))});      
    map = new Map("mapdiv",{
        	 logo:false,
        	 sliderPosition:"top-right",
        	 infoWindow : infoWindow
          });

这里简单说明一下（私人理解），infoWindow和infoTemplate，

infoWindow：顾名思义它是个窗口，是气泡框的父体，你可以setTitle(),setContent();但是里面的内容需要完全拼接；

infoTemplate:     故啥思啥它是个模板，通过 '$' 符可以属性值，前提是你在创建graphic的时候赋值属性了，最终展示是在 infoWindow里显示的。

请各路大神批评指正~~~