使传单工具提示可点击

2022-01-12 00:00:00 leaflet event-handling click javascript

我想在 Leaflet 地图(不带标记)上添加 工具提示 并使其可点击.以下代码添加了一个工具提示，但它不可点击:

I want to add tooltips on a Leaflet map (without markers) and make them clickable. The following code adds a tooltip but it's not clickable:

var tooltip = L.tooltip({
        direction: 'center',
        permanent: true,
        interactive: true,
        noWrap: true,
        opacity: 0.9
    });
tooltip.setContent( "Example" );
tooltip.setLatLng(new L.LatLng(someLat, someLon));
tooltip.addTo(myLayer);
tooltip.on('click', function(event) {
    console.log("Click!");
});

我怎样才能让它工作?

推荐答案

要接收对 L.Tooltip 对象的点击，您需要:

To receive clicks on a L.Tooltip object, you'll need to :

  • 在关联的 DOM 对象上设置监听器:

  • set up a listener on the associated DOM object :

var el = tooltip.getElement();
el.addEventListener('click', function() {
   console.log("click");
});

  • 删除 pointer-events: none 在该元素上设置的属性:

  • remove the pointer-events: none property set on that element:

    var el = tooltip.getElement();
el.style.pointerEvents = 'auto';

    • 到目前为止的演示

    var map = L.map(document.getElementById('map')).setView([48.8583736, 2.2922926], 4);
L.tileLayer('http://{s}.tile.osm.org/{z}/{x}/{y}.png', {
        attribution: '&copy; <a href="http://osm.org/copyright">OpenStreetMap</a> contributors'
}).addTo(map);

var tooltip = L.tooltip({
    direction: 'center',
    permanent: true,
    interactive: true,
    noWrap: true,
    opacity: 0.9
});
tooltip.setContent( "Example" );
tooltip.setLatLng(new L.LatLng(48.8583736, 2.2922926));
tooltip.addTo(map);

var el = tooltip.getElement();
el.addEventListener('click', function() {
    console.log("click");
});
el.style.pointerEvents = 'auto';

    html, body {
  height: 100%;
  margin: 0;
}
#map {
  width: 100%;
  height: 180px;
}

    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/leaflet/1.3.1/leaflet.css"/>
<script src="https://cdnjs.cloudflare.com/ajax/libs/leaflet/1.3.1/leaflet.js"></script>
   
<div id='map'></div>

    如果您想创建组件或直接监听工具提示对象，您可以扩展 L.Tooltip 以将这些更改直接烘焙到定义中:

    If you want to create a component or listen directly to a tooltip object, you can extend L.Tooltip to bake those alterations directly into the definition:

    L.ClickableTooltip = L.Tooltip.extend({
    onAdd: function (map) {
        L.Tooltip.prototype.onAdd.call(this, map);

        var el = this.getElement(),
            self = this;

        el.addEventListener('click', function() {
            self.fire("click");
        });
        el.style.pointerEvents = 'auto';
    }
});

var tooltip = new L.ClickableTooltip({
    direction: 'center',
    permanent: true,
    noWrap: true,
    opacity: 0.9
});
tooltip.setContent( "Example" );
tooltip.setLatLng(new L.LatLng(48.8583736, 2.2922926));
tooltip.addTo(map);

tooltip.on('click', function(e) {
    console.log("clicked", JSON.stringify(e.target.getLatLng()));
});

    还有一个演示

    L.ClickableTooltip = L.Tooltip.extend({

    onAdd: function (map) {
        L.Tooltip.prototype.onAdd.call(this, map);

        var el = this.getElement(),
            self = this;

        el.addEventListener('click', function() {
            self.fire("click");
        });
        el.style.pointerEvents = 'auto';
    }
});


var map = L.map(document.getElementById('map')).setView([48.8583736, 2.2922926], 4);
L.tileLayer('http://{s}.tile.osm.org/{z}/{x}/{y}.png', {
        attribution: '&copy; <a href="http://osm.org/copyright">OpenStreetMap</a> contributors'
}).addTo(map);

var tooltip = new L.ClickableTooltip({
    direction: 'center',
    permanent: true,
    noWrap: true,
    opacity: 0.9
});
tooltip.setContent( "Example" );
tooltip.setLatLng(new L.LatLng(48.8583736, 2.2922926));
tooltip.addTo(map);

tooltip.on('click', function(e) {
    console.log("clicked", JSON.stringify(e.target.getLatLng()));
});

    html, body {
  height: 100%;
  margin: 0;
}
#map {
  width: 100%;
  height: 180px;
}

    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/leaflet/1.3.1/leaflet.css"/>
<script src="https://cdnjs.cloudflare.com/ajax/libs/leaflet/1.3.1/leaflet.js"></script>
   
<div id='map'></div>

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