如何在'popupopen`事件中识别Leaflet的标记？ [英] How to identify Leaflet's Marker during a `popupopen` event?

问题描述

当点击标记时，我需要执行一些代码，找到与被点击的标记相对应的 id ，从后端API检索数据，然后添加新检索的数据到将打开的弹出窗口的内容。

when a marker is clicked, I need to execute some code that finds the id corresponding to the marker being clicked , retrieves data from backend API, then adds the newly retrieved data to the content of the popup that will open.

唯一可以收听点击的方法标记上的事件是

The only way that is able to listen to a click event on the marker is

map.on('popupopen', function(e){
    // How to retrieve marker?
    // eg: Assign an id on creation, retrieve it now during popupopen
};)

如何找出这是哪个标记？是否可以为每个标记添加 id 属性，然后在期间检索此 id popupopen event？

How can I find out which marker this is? Is it possible to add an id attribute to each marker, then retrieve this id during the popupopen event?

推荐答案

事件对象包含一个popup属性，该属性具有一个名为private的属性_source是弹出窗口绑定的对象（即标记）。由于_source应该是私有的，这似乎不是正确的方式，但我不确定如何做到这一点。

The event object contains a "popup" attribute that has a private attribute called "_source" which is the object that the popup is bound to (i.e. the marker). Since _source is supposed to be private this doesn't seem like the right way but I'm not sure how else to do it.

map.on('popupopen', function(e) {
  var marker = e.popup._source;
});

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