// 创建弹窗对象的方法
 var Popup = function(info){
    this.constructor(info);
}
Popup.prototype.id=0;
Popup.prototype.dom=[];
Popup.prototype.constructor = function(info){
    var _this = this;
    _this.viewer = info.viewer;//弹窗创建的viewer
    _this.geometry = info.geometry;//弹窗挂载的位置
    _this.id = info.id;
    _this.entity=info.entity;
    _this.type=info.type;
    _this.content=info.content;
    _this.ctn = $("<div class='bx-popup-ctn' id =  '"+_this.id+"'>");
    
    var entity={"id":_this.id,"dom":_this.ctn};
    Popup.prototype.dom.push(entity);

    $(_this.viewer.container).append( _this.ctn);
    //弹窗内容
    var testConfig;
    if(_this.type=="image"){
        testConfig= {
            header:_this.entity.title,
            //header:"",
            content:'<img class="image" style="width:100%;height:100%;max-width:200px;max-height:150px" src=""></img>'
        }
    }
    else if(_this.type=="label"){
        testConfig= {
            header:_this.entity.title,
            //header:"",
            content:'<textarea class="textarea" style="color:white;width:100%;height:150px;max-width:200px;max-height:150px;background:transparent;resize:none" readonly="true";></textarea>'
        }
    }
    _this.ctn.append(_this.createHtml(testConfig.header,testConfig.content,_this.id));
    
    _this.render(_this.geometry);
    _this.eventListener = _this.viewer.clock.onTick.addEventListener(function(clock) {
        _this.render(_this.geometry);
    })
}
// 实时刷新
Popup.prototype.render = function(geometry){
    var _this = this;
    var position = Cesium.SceneTransforms.wgs84ToWindowCoordinates(_this.viewer.scene,geometry)
    if(position!=null){
        let w=window.innerWidth || document.documentElement.clientWidth || document.body.clientWidth;
        let h=window.innerHeight || document.documentElement.clientHeight || document.body.clientHeight;
        let x=position.x- _this.ctn.get(0).offsetWidth/2
        let y=position.y- _this.ctn.get(0).offsetHeight - 10;
        if(x<0){
            x=330;
        }else if(x>w){
            x=w;
        }
        if(y<0){
            y=0
        }
        else if(y>h){
            y=h;
        }
        _this.ctn.css("left",x);
        _this.ctn.css("top",y);
    }
}
// 动态生成内容
Popup.prototype.createHtml = function(header,content,id){
        var html = '<div class="bx-popup-header-ctn">'+
        header+
        '</div>'+
        '<div class="bx-popup-content-ctn" >'+
        '<div class="bx-popup-content">'+    
        content+
        '</div>'+
        '</div>'+
        '<div class="bx-popup-tip-container" >'+
        // '<div class="bx-popup-tip" >'+
        // '</div>'+
    '</div>'+
    '<a class="leaflet-popup-close-button" onClick="Popup.prototype.close(\''+id+'\')">X</a>';
    return html;
}
// 关闭弹窗按钮
Popup.prototype.close=function(id){
    var _this = this;
    for(let i=0;i<_this.dom.length;i++){
        if(_this.dom[i].id==id){
            _this.dom[i].dom.hide();
            // _this.dom.splice(i,1)
        }
    }
}