取消事件冒泡

获取Konva最新的信息

我们可以通过设置 Event 的 cancelBubble 属性为 true,来取消事件冒泡

说明:点击图中的圆,只有圆绑定的事件被执行,因为当圆绑定的事件被触发时事件传播被取消了,阻止了事件向上冒泡;

Konva Cancel_Propagation Demoview raw
<!DOCTYPE html>
<html>
<head>
<script src="https://unpkg.com/konva@4.0.18/konva.min.js"></script>
<meta charset="utf-8" />
<title>Konva Cancel Event Bubble Propagation Demo</title>
<style>
body {
margin: 0;
padding: 0;
overflow: hidden;
background-color: #f0f0f0;
}
</style>
</head>

<body>
<div id="container"></div>
<script>
var stage = new Konva.Stage({
container: 'container',
width: window.innerWidth,
height: window.innerHeight
});

var layer = new Konva.Layer();

var group = new Konva.Group();

var circle = new Konva.Circle({
x: stage.width() / 2,
y: stage.height() / 2,
radius: 70,
fill: 'red',
stroke: 'black',
strokeWidth: 4
});

circle.on('click', function(evt) {
alert('You clicked the circle!');
evt.cancelBubble = true;
});

group.on('click', function() {
alert('You clicked on the group!');
});

layer.on('click', function() {
alert('You clicked on the layer!');
});

group.add(circle);
layer.add(group);

// add the layer to the stage
stage.add(layer);
</script>
</body>
</html>